dbstorage/dbapp/static/tabulator/js/tabulator.js

/* Tabulator v6.3.1 (c) Oliver Folkerd 2025 */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Tabulator = factory());
})(this, (function () { 'use strict';

	var defaultOptions = {

		debugEventsExternal:false, //flag to console log events
		debugEventsInternal:false, //flag to console log events
		debugInvalidOptions:true, //allow toggling of invalid option warnings
		debugInvalidComponentFuncs:true, //allow toggling of invalid component warnings
		debugInitialization:true, //allow toggling of pre initialization function call warnings
		debugDeprecation:true, //allow toggling of deprecation warnings

		height:false, //height of tabulator
		minHeight:false, //minimum height of tabulator
		maxHeight:false, //maximum height of tabulator

		columnHeaderVertAlign:"top", //vertical alignment of column headers

		popupContainer:false,

		columns:[],//store for colum header info
		columnDefaults:{}, //store column default props
		rowHeader:false,

		data:false, //default starting data

		autoColumns:false, //build columns from data row structure
		autoColumnsDefinitions:false,

		nestedFieldSeparator:".", //separator for nested data

		footerElement:false, //hold footer element

		index:"id", //filed for row index

		textDirection:"auto",

		addRowPos:"bottom", //position to insert blank rows, top|bottom

		headerVisible:true, //hide header

		renderVertical:"virtual",
		renderHorizontal:"basic",
		renderVerticalBuffer:0, // set virtual DOM buffer size

		scrollToRowPosition:"top",
		scrollToRowIfVisible:true,

		scrollToColumnPosition:"left",
		scrollToColumnIfVisible:true,

		rowFormatter:false,
		rowFormatterPrint:null,
		rowFormatterClipboard:null,
		rowFormatterHtmlOutput:null,

		rowHeight:null,

		placeholder:false,

		dataLoader:true,
		dataLoaderLoading:false,
		dataLoaderError:false,
		dataLoaderErrorTimeout:3000,
		dataSendParams:{},
		dataReceiveParams:{},

		dependencies:{},
	};

	class CoreFeature{

		constructor(table){
			this.table = table;
		}

		//////////////////////////////////////////
		/////////////// DataLoad /////////////////
		//////////////////////////////////////////

		reloadData(data, silent, columnsChanged){
			return this.table.dataLoader.load(data, undefined, undefined, undefined, silent, columnsChanged);
		}

		//////////////////////////////////////////
		///////////// Localization ///////////////
		//////////////////////////////////////////

		langText(){
			return this.table.modules.localize.getText(...arguments);
		}

		langBind(){
			return this.table.modules.localize.bind(...arguments);
		}

		langLocale(){
			return this.table.modules.localize.getLocale(...arguments);
		}


		//////////////////////////////////////////
		////////// Inter Table Comms /////////////
		//////////////////////////////////////////

		commsConnections(){
			return this.table.modules.comms.getConnections(...arguments);
		}

		commsSend(){
			return this.table.modules.comms.send(...arguments);
		}

		//////////////////////////////////////////
		//////////////// Layout  /////////////////
		//////////////////////////////////////////

		layoutMode(){
			return this.table.modules.layout.getMode();
		}

		layoutRefresh(force){
			return this.table.modules.layout.layout(force);
		}


		//////////////////////////////////////////
		/////////////// Event Bus ////////////////
		//////////////////////////////////////////

		subscribe(){
			return this.table.eventBus.subscribe(...arguments);
		}

		unsubscribe(){
			return this.table.eventBus.unsubscribe(...arguments);
		}

		subscribed(key){
			return this.table.eventBus.subscribed(key);
		}

		subscriptionChange(){
			return this.table.eventBus.subscriptionChange(...arguments);
		}

		dispatch(){
			return this.table.eventBus.dispatch(...arguments);
		}

		chain(){
			return this.table.eventBus.chain(...arguments);
		}

		confirm(){
			return this.table.eventBus.confirm(...arguments);
		}

		dispatchExternal(){
			return this.table.externalEvents.dispatch(...arguments);
		}

		subscribedExternal(key){
			return this.table.externalEvents.subscribed(key);
		}

		subscriptionChangeExternal(){
			return this.table.externalEvents.subscriptionChange(...arguments);
		}

		//////////////////////////////////////////
		//////////////// Options /////////////////
		//////////////////////////////////////////

		options(key){
			return this.table.options[key];
		}

		setOption(key, value){
			if(typeof value !== "undefined"){
				this.table.options[key] = value;
			}

			return this.table.options[key];
		}

		//////////////////////////////////////////
		/////////// Deprecation Checks ///////////
		//////////////////////////////////////////

		deprecationCheck(oldOption, newOption,  convert){
			return this.table.deprecationAdvisor.check(oldOption, newOption,  convert);
		}

		deprecationCheckMsg(oldOption, msg){
			return this.table.deprecationAdvisor.checkMsg(oldOption, msg);
		}

		deprecationMsg(msg){
			return this.table.deprecationAdvisor.msg(msg);
		}
		//////////////////////////////////////////
		//////////////// Modules /////////////////
		//////////////////////////////////////////

		module(key){
			return this.table.module(key);
		}
	}

	//public column object
	class ColumnComponent {
		constructor (column){
			this._column = column;
			this.type = "ColumnComponent";

			return new Proxy(this, {
				get: function(target, name, receiver) {
					if (typeof target[name] !== "undefined") {
						return target[name];
					}else {
						return target._column.table.componentFunctionBinder.handle("column", target._column, name);
					}
				}
			});
		}

		getElement(){
			return this._column.getElement();
		}

		getDefinition(){
			return this._column.getDefinition();
		}

		getField(){
			return this._column.getField();
		}

		getTitleDownload() {
			return this._column.getTitleDownload();
		}

		getCells(){
			var cells = [];

			this._column.cells.forEach(function(cell){
				cells.push(cell.getComponent());
			});

			return cells;
		}

		isVisible(){
			return this._column.visible;
		}

		show(){
			if(this._column.isGroup){
				this._column.columns.forEach(function(column){
					column.show();
				});
			}else {
				this._column.show();
			}
		}

		hide(){
			if(this._column.isGroup){
				this._column.columns.forEach(function(column){
					column.hide();
				});
			}else {
				this._column.hide();
			}
		}

		toggle(){
			if(this._column.visible){
				this.hide();
			}else {
				this.show();
			}
		}

		delete(){
			return this._column.delete();
		}

		getSubColumns(){
			var output = [];

			if(this._column.columns.length){
				this._column.columns.forEach(function(column){
					output.push(column.getComponent());
				});
			}

			return output;
		}

		getParentColumn(){
			return this._column.getParentComponent();
		}

		_getSelf(){
			return this._column;
		}

		scrollTo(position, ifVisible){
			return this._column.table.columnManager.scrollToColumn(this._column, position, ifVisible);
		}

		getTable(){
			return this._column.table;
		}

		move(to, after){
			var toColumn = this._column.table.columnManager.findColumn(to);

			if(toColumn){
				this._column.table.columnManager.moveColumn(this._column, toColumn, after);
			}else {
				console.warn("Move Error - No matching column found:", toColumn);
			}
		}

		getNextColumn(){
			var nextCol = this._column.nextColumn();

			return nextCol ? nextCol.getComponent() : false;
		}

		getPrevColumn(){
			var prevCol = this._column.prevColumn();

			return prevCol ? prevCol.getComponent() : false;
		}

		updateDefinition(updates){
			return this._column.updateDefinition(updates);
		}

		getWidth(){
			return this._column.getWidth();
		}

		setWidth(width){
			var result;

			if(width === true){
				result =  this._column.reinitializeWidth(true);
			}else {
				result =  this._column.setWidth(width);
			}

			this._column.table.columnManager.rerenderColumns(true);

			return result;
		}
	}

	var defaultColumnOptions = {
		"title": undefined,
		"field": undefined,
		"columns": undefined,
		"visible": undefined,
		"hozAlign": undefined,
		"vertAlign": undefined,
		"width": undefined,
		"minWidth": 40,
		"maxWidth": undefined,
		"maxInitialWidth": undefined,
		"cssClass": undefined,
		"variableHeight": undefined,
		"headerVertical": undefined,
		"headerHozAlign": undefined,
		"headerWordWrap": false,
		"editableTitle": undefined,
	};

	//public cell object
	class CellComponent {

		constructor (cell){
			this._cell = cell;

			return new Proxy(this, {
				get: function(target, name, receiver) {
					if (typeof target[name] !== "undefined") {
						return target[name];
					}else {
						return target._cell.table.componentFunctionBinder.handle("cell", target._cell, name);
					}
				}
			});
		}

		getValue(){
			return this._cell.getValue();
		}

		getOldValue(){
			return this._cell.getOldValue();
		}

		getInitialValue(){
			return this._cell.initialValue;
		}

		getElement(){
			return this._cell.getElement();
		}

		getRow(){
			return this._cell.row.getComponent();
		}

		getData(transform){
			return this._cell.row.getData(transform);
		}
		getType(){
			return "cell";
		}
		getField(){
			return this._cell.column.getField();
		}

		getColumn(){
			return this._cell.column.getComponent();
		}

		setValue(value, mutate){
			if(typeof mutate == "undefined"){
				mutate = true;
			}

			this._cell.setValue(value, mutate);
		}

		restoreOldValue(){
			this._cell.setValueActual(this._cell.getOldValue());
		}

		restoreInitialValue(){
			this._cell.setValueActual(this._cell.initialValue);
		}

		checkHeight(){
			this._cell.checkHeight();
		}

		getTable(){
			return this._cell.table;
		}

		_getSelf(){
			return this._cell;
		}
	}

	class Cell extends CoreFeature{
		constructor(column, row){
			super(column.table);

			this.table = column.table;
			this.column = column;
			this.row = row;
			this.element = null;
			this.value = null;
			this.initialValue;
			this.oldValue = null;
			this.modules = {};

			this.height = null;
			this.width = null;
			this.minWidth = null;

			this.component = null;

			this.loaded = false; //track if the cell has been added to the DOM yet

			this.build();
		}

		//////////////// Setup Functions /////////////////
		//generate element
		build(){
			this.generateElement();

			this.setWidth();

			this._configureCell();

			this.setValueActual(this.column.getFieldValue(this.row.data));

			this.initialValue = this.value;
		}

		generateElement(){
			this.element = document.createElement('div');
			this.element.className = "tabulator-cell";
			this.element.setAttribute("role", "gridcell");

			if(this.column.isRowHeader){
				this.element.classList.add("tabulator-row-header");
			}
		}

		_configureCell(){
			var element = this.element,
			field = this.column.getField(),
			vertAligns = {
				top:"flex-start",
				bottom:"flex-end",
				middle:"center",
			},
			hozAligns = {
				left:"flex-start",
				right:"flex-end",
				center:"center",
			};

			//set text alignment
			element.style.textAlign = this.column.hozAlign;

			if(this.column.vertAlign){
				element.style.display = "inline-flex";

				element.style.alignItems = vertAligns[this.column.vertAlign] || "";

				if(this.column.hozAlign){
					element.style.justifyContent = hozAligns[this.column.hozAlign] || "";
				}
			}

			if(field){
				element.setAttribute("tabulator-field", field);
			}

			//add class to cell if needed
			if(this.column.definition.cssClass){
				var classNames = this.column.definition.cssClass.split(" ");
				classNames.forEach((className) => {
					element.classList.add(className);
				});
			}

			this.dispatch("cell-init", this);

			//hide cell if not visible
			if(!this.column.visible){
				this.hide();
			}
		}

		//generate cell contents
		_generateContents(){
			var val;

			val = this.chain("cell-format", this, null, () => {
				return this.element.innerHTML = this.value;
			});

			switch(typeof val){
				case "object":
					if(val instanceof Node){

						//clear previous cell contents
						while(this.element.firstChild) this.element.removeChild(this.element.firstChild);

						this.element.appendChild(val);
					}else {
						this.element.innerHTML = "";

						if(val != null){
							console.warn("Format Error - Formatter has returned a type of object, the only valid formatter object return is an instance of Node, the formatter returned:", val);
						}
					}
					break;
				case "undefined":
					this.element.innerHTML = "";
					break;
				default:
					this.element.innerHTML = val;
			}
		}

		cellRendered(){
			this.dispatch("cell-rendered", this);
		}

		//////////////////// Getters ////////////////////
		getElement(containerOnly){
			if(!this.loaded){
				this.loaded = true;
				if(!containerOnly){
					this.layoutElement();
				}
			}

			return this.element;
		}

		getValue(){
			return this.value;
		}

		getOldValue(){
			return this.oldValue;
		}

		//////////////////// Actions ////////////////////
		setValue(value, mutate, force){
			var changed = this.setValueProcessData(value, mutate, force);

			if(changed){
				this.dispatch("cell-value-updated", this);

				this.cellRendered();

				if(this.column.definition.cellEdited){
					this.column.definition.cellEdited.call(this.table, this.getComponent());
				}

				this.dispatchExternal("cellEdited", this.getComponent());

				if(this.subscribedExternal("dataChanged")){
					this.dispatchExternal("dataChanged", this.table.rowManager.getData());
				}
			}
		}

		setValueProcessData(value, mutate, force){
			var changed = false;

			if(this.value !== value || force){

				changed = true;

				if(mutate){
					value = this.chain("cell-value-changing", [this, value], null, value);
				}
			}

			this.setValueActual(value);

			if(changed){
				this.dispatch("cell-value-changed", this);
			}

			return changed;
		}

		setValueActual(value){
			this.oldValue = this.value;

			this.value = value;

			this.dispatch("cell-value-save-before", this);

			this.column.setFieldValue(this.row.data, value);

			this.dispatch("cell-value-save-after", this);

			if(this.loaded){
				this.layoutElement();
			}
		}

		layoutElement(){
			this._generateContents();

			this.dispatch("cell-layout", this);
		}

		setWidth(){
			this.width = this.column.width;
			this.element.style.width = this.column.widthStyled;
		}

		clearWidth(){
			this.width = "";
			this.element.style.width = "";
		}

		getWidth(){
			return this.width || this.element.offsetWidth;
		}

		setMinWidth(){
			this.minWidth = this.column.minWidth;
			this.element.style.minWidth = this.column.minWidthStyled;
		}

		setMaxWidth(){
			this.maxWidth = this.column.maxWidth;
			this.element.style.maxWidth = this.column.maxWidthStyled;
		}

		checkHeight(){
			// var height = this.element.css("height");
			this.row.reinitializeHeight();
		}

		clearHeight(){
			this.element.style.height = "";
			this.height = null;

			this.dispatch("cell-height", this, "");
		}

		setHeight(){
			this.height = this.row.height;
			this.element.style.height = this.row.heightStyled;

			this.dispatch("cell-height", this, this.row.heightStyled);
		}

		getHeight(){
			return this.height || this.element.offsetHeight;
		}

		show(){
			this.element.style.display = this.column.vertAlign ? "inline-flex" : "";
		}

		hide(){
			this.element.style.display = "none";
		}

		delete(){
			this.dispatch("cell-delete", this);

			if(!this.table.rowManager.redrawBlock && this.element.parentNode){
				this.element.parentNode.removeChild(this.element);
			}

			this.element = false;
			this.column.deleteCell(this);
			this.row.deleteCell(this);
			this.calcs = {};
		}

		getIndex(){
			return this.row.getCellIndex(this);
		}

		//////////////// Object Generation /////////////////
		getComponent(){
			if(!this.component){
				this.component = new CellComponent(this);
			}

			return this.component;
		}
	}

	class Column extends CoreFeature{
		
		static defaultOptionList = defaultColumnOptions;
		
		constructor(def, parent, rowHeader){
			super(parent.table);
			
			this.definition = def; //column definition
			this.parent = parent; //hold parent object
			this.type = "column"; //type of element
			this.columns = []; //child columns
			this.cells = []; //cells bound to this column
			this.isGroup = false;
			this.isRowHeader = rowHeader;
			this.element = this.createElement(); //column header element
			this.contentElement = false;
			this.titleHolderElement = false;
			this.titleElement = false;
			this.groupElement = this.createGroupElement(); //column group holder element
			this.hozAlign = ""; //horizontal text alignment
			this.vertAlign = ""; //vert text alignment
			
			//multi dimensional filed handling
			this.field ="";
			this.fieldStructure = "";
			this.getFieldValue = "";
			this.setFieldValue = "";
			
			this.titleDownload = null;
			this.titleFormatterRendered = false;
			
			this.mapDefinitions();
			
			this.setField(this.definition.field);
			
			this.modules = {}; //hold module variables;
			
			this.width = null; //column width
			this.widthStyled = ""; //column width pre-styled to improve render efficiency
			this.maxWidth = null; //column maximum width
			this.maxWidthStyled = ""; //column maximum pre-styled to improve render efficiency
			this.maxInitialWidth = null;
			this.minWidth = null; //column minimum width
			this.minWidthStyled = ""; //column minimum pre-styled to improve render efficiency
			this.widthFixed = false; //user has specified a width for this column
			
			this.visible = true; //default visible state
			
			this.component = null;
			
			//initialize column
			if(this.definition.columns){
				
				this.isGroup = true;
				
				this.definition.columns.forEach((def, i) => {
					var newCol = new Column(def, this);
					this.attachColumn(newCol);
				});
				
				this.checkColumnVisibility();
			}else {
				parent.registerColumnField(this);
			}
			
			this._initialize();
		}
		
		createElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-col");
			el.setAttribute("role", "columnheader");
			el.setAttribute("aria-sort", "none");

			if(this.isRowHeader){
				el.classList.add("tabulator-row-header");
			}
			
			switch(this.table.options.columnHeaderVertAlign){
				case "middle":
					el.style.justifyContent = "center";
					break;
				case "bottom":
					el.style.justifyContent = "flex-end";
					break;
			}
			
			return el;
		}
		
		createGroupElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-col-group-cols");
			
			return el;
		}
		
		mapDefinitions(){
			var defaults = this.table.options.columnDefaults;
			
			//map columnDefaults onto column definitions
			if(defaults){
				for(let key in defaults){
					if(typeof this.definition[key] === "undefined"){
						this.definition[key] = defaults[key];
					}
				}
			}
			
			this.definition = this.table.columnManager.optionsList.generate(Column.defaultOptionList, this.definition);
		}
		
		checkDefinition(){
			Object.keys(this.definition).forEach((key) => {
				if(Column.defaultOptionList.indexOf(key) === -1){
					console.warn("Invalid column definition option in '" + (this.field || this.definition.title) + "' column:", key);
				}
			});
		}

		setField(field){
			this.field = field;
			this.fieldStructure = field ? (this.table.options.nestedFieldSeparator ? field.split(this.table.options.nestedFieldSeparator) : [field]) : [];
			this.getFieldValue = this.fieldStructure.length > 1 ? this._getNestedData : this._getFlatData;
			this.setFieldValue = this.fieldStructure.length > 1 ? this._setNestedData : this._setFlatData;
		}
		
		//register column position with column manager
		registerColumnPosition(column){
			this.parent.registerColumnPosition(column);
		}
		
		//register column position with column manager
		registerColumnField(column){
			this.parent.registerColumnField(column);
		}
		
		//trigger position registration
		reRegisterPosition(){
			if(this.isGroup){
				this.columns.forEach(function(column){
					column.reRegisterPosition();
				});
			}else {
				this.registerColumnPosition(this);
			}
		}
		
		//build header element
		_initialize(){
			var def = this.definition;
			
			while(this.element.firstChild) this.element.removeChild(this.element.firstChild);
			
			if(def.headerVertical){
				this.element.classList.add("tabulator-col-vertical");
				
				if(def.headerVertical === "flip"){
					this.element.classList.add("tabulator-col-vertical-flip");
				}
			}
			
			this.contentElement = this._buildColumnHeaderContent();
			
			this.element.appendChild(this.contentElement);
			
			if(this.isGroup){
				this._buildGroupHeader();
			}else {
				this._buildColumnHeader();
			}
			
			this.dispatch("column-init", this);
		}
		
		//build header element for header
		_buildColumnHeader(){
			var def = this.definition;
			
			this.dispatch("column-layout", this);
			
			//set column visibility
			if(typeof def.visible != "undefined"){
				if(def.visible){
					this.show(true);
				}else {
					this.hide(true);
				}
			}
			
			//assign additional css classes to column header
			if(def.cssClass){
				var classNames = def.cssClass.split(" ");
				classNames.forEach((className) => {
					this.element.classList.add(className);
				});
			}
			
			if(def.field){
				this.element.setAttribute("tabulator-field", def.field);
			}
			
			//set min width if present
			this.setMinWidth(parseInt(def.minWidth));
			
			if (def.maxInitialWidth) {
				this.maxInitialWidth = parseInt(def.maxInitialWidth);
			}
			
			if(def.maxWidth){
				this.setMaxWidth(parseInt(def.maxWidth));
			}
			
			this.reinitializeWidth();
			
			//set horizontal text alignment
			this.hozAlign = this.definition.hozAlign;
			this.vertAlign = this.definition.vertAlign;
			
			this.titleElement.style.textAlign = this.definition.headerHozAlign;
		}
		
		_buildColumnHeaderContent(){
			var contentElement = document.createElement("div");
			contentElement.classList.add("tabulator-col-content");
			
			this.titleHolderElement = document.createElement("div");
			this.titleHolderElement.classList.add("tabulator-col-title-holder");
			
			contentElement.appendChild(this.titleHolderElement);
			
			this.titleElement = this._buildColumnHeaderTitle();
			
			this.titleHolderElement.appendChild(this.titleElement);
			
			return contentElement;
		}
		
		//build title element of column
		_buildColumnHeaderTitle(){
			var def = this.definition;
			
			var titleHolderElement = document.createElement("div");
			titleHolderElement.classList.add("tabulator-col-title");
			
			if(def.headerWordWrap){
				titleHolderElement.classList.add("tabulator-col-title-wrap");
			}
			
			if(def.editableTitle){
				var titleElement = document.createElement("input");
				titleElement.classList.add("tabulator-title-editor");
				
				titleElement.addEventListener("click", (e) => {
					e.stopPropagation();
					titleElement.focus();
				});
				
				titleElement.addEventListener("mousedown", (e) => {
					e.stopPropagation();
				});
				
				titleElement.addEventListener("change", () => {
					def.title = titleElement.value;
					this.dispatchExternal("columnTitleChanged", this.getComponent());
				});
				
				titleHolderElement.appendChild(titleElement);
				
				if(def.field){
					this.langBind("columns|" + def.field, (text) => {
						titleElement.value = text || (def.title || " ");
					});
				}else {
					titleElement.value  = def.title || " ";
				}
				
			}else {
				if(def.field){
					this.langBind("columns|" + def.field, (text) => {
						this._formatColumnHeaderTitle(titleHolderElement, text || (def.title || " "));
					});
				}else {
					this._formatColumnHeaderTitle(titleHolderElement, def.title || " ");
				}
			}
			
			return titleHolderElement;
		}
		
		_formatColumnHeaderTitle(el, title){
			var contents = this.chain("column-format", [this, title, el], null, () => {
				return title;
			});
			
			switch(typeof contents){
				case "object":
					if(contents instanceof Node){
						el.appendChild(contents);
					}else {
						el.innerHTML = "";
						console.warn("Format Error - Title formatter has returned a type of object, the only valid formatter object return is an instance of Node, the formatter returned:", contents);
					}
					break;
				case "undefined":
					el.innerHTML = "";
					break;
				default:
					el.innerHTML = contents;
			}
		}
		
		//build header element for column group
		_buildGroupHeader(){
			this.element.classList.add("tabulator-col-group");
			this.element.setAttribute("role", "columngroup");
			this.element.setAttribute("aria-title", this.definition.title);
			
			//asign additional css classes to column header
			if(this.definition.cssClass){
				var classNames = this.definition.cssClass.split(" ");
				classNames.forEach((className) => {
					this.element.classList.add(className);
				});
			}
			
			this.titleElement.style.textAlign = this.definition.headerHozAlign;
			
			this.element.appendChild(this.groupElement);
		}
		
		//flat field lookup
		_getFlatData(data){
			return data[this.field];
		}
		
		//nested field lookup
		_getNestedData(data){
			var dataObj = data,
			structure = this.fieldStructure,
			length = structure.length,
			output;
			
			for(let i = 0; i < length; i++){
				
				dataObj = dataObj[structure[i]];
				
				output = dataObj;
				
				if(!dataObj){
					break;
				}
			}
			
			return output;
		}
		
		//flat field set
		_setFlatData(data, value){
			if(this.field){
				data[this.field] = value;
			}
		}
		
		//nested field set
		_setNestedData(data, value){
			var dataObj = data,
			structure = this.fieldStructure,
			length = structure.length;
			
			for(let i = 0; i < length; i++){
				
				if(i == length -1){
					dataObj[structure[i]] = value;
				}else {
					if(!dataObj[structure[i]]){
						if(typeof value !== "undefined"){
							dataObj[structure[i]] = {};
						}else {
							break;
						}
					}
					
					dataObj = dataObj[structure[i]];
				}
			}
		}
		
		//attach column to this group
		attachColumn(column){
			if(this.groupElement){
				this.columns.push(column);
				this.groupElement.appendChild(column.getElement());
				
				column.columnRendered();
			}else {
				console.warn("Column Warning - Column being attached to another column instead of column group");
			}
		}
		
		//vertically align header in column
		verticalAlign(alignment, height){
			
			//calculate height of column header and group holder element
			var parentHeight = this.parent.isGroup ? this.parent.getGroupElement().clientHeight : (height || this.parent.getHeadersElement().clientHeight);
			// var parentHeight = this.parent.isGroup ? this.parent.getGroupElement().clientHeight : this.parent.getHeadersElement().clientHeight;
			
			this.element.style.height = parentHeight + "px";
			
			this.dispatch("column-height", this, this.element.style.height);
			
			if(this.isGroup){
				this.groupElement.style.minHeight = (parentHeight - this.contentElement.offsetHeight) + "px";
			}
			
			//vertically align cell contents
			// if(!this.isGroup && alignment !== "top"){
			// 	if(alignment === "bottom"){
			// 		this.element.style.paddingTop = (this.element.clientHeight - this.contentElement.offsetHeight) + "px";
			// 	}else{
			// 		this.element.style.paddingTop = ((this.element.clientHeight - this.contentElement.offsetHeight) / 2) + "px";
			// 	}
			// }
			
			this.columns.forEach(function(column){
				column.verticalAlign(alignment);
			});
		}
		
		//clear vertical alignment
		clearVerticalAlign(){
			this.element.style.paddingTop = "";
			this.element.style.height = "";
			this.element.style.minHeight = "";
			this.groupElement.style.minHeight = "";
			
			this.columns.forEach(function(column){
				column.clearVerticalAlign();
			});
			
			this.dispatch("column-height", this, "");
		}
		
		//// Retrieve Column Information ////
		//return column header element
		getElement(){
			return this.element;
		}
		
		//return column group element
		getGroupElement(){
			return this.groupElement;
		}
		
		//return field name
		getField(){
			return this.field;
		}
		
		getTitleDownload() {
			return this.titleDownload;
		}
		
		//return the first column in a group
		getFirstColumn(){
			if(!this.isGroup){
				return this;
			}else {
				if(this.columns.length){
					return this.columns[0].getFirstColumn();
				}else {
					return false;
				}
			}
		}
		
		//return the last column in a group
		getLastColumn(){
			if(!this.isGroup){
				return this;
			}else {
				if(this.columns.length){
					return this.columns[this.columns.length -1].getLastColumn();
				}else {
					return false;
				}
			}
		}
		
		//return all columns in a group
		getColumns(traverse){
			var columns = [];
			
			if(traverse){
				this.columns.forEach((column) => {
					columns.push(column);
					
					columns = columns.concat(column.getColumns(true));
				});
			}else {
				columns = this.columns;
			}
			
			return columns;
		}
		
		//return all columns in a group
		getCells(){
			return this.cells;
		}
		
		//retrieve the top column in a group of columns
		getTopColumn(){
			if(this.parent.isGroup){
				return this.parent.getTopColumn();
			}else {
				return this;
			}
		}
		
		//return column definition object
		getDefinition(updateBranches){
			var colDefs = [];
			
			if(this.isGroup && updateBranches){
				this.columns.forEach(function(column){
					colDefs.push(column.getDefinition(true));
				});
				
				this.definition.columns = colDefs;
			}
			
			return this.definition;
		}
		
		//////////////////// Actions ////////////////////
		checkColumnVisibility(){
			var visible = false;
			
			this.columns.forEach(function(column){
				if(column.visible){
					visible = true;
				}
			});
			
			if(visible){
				this.show();
				this.dispatchExternal("columnVisibilityChanged", this.getComponent(), false);
			}else {
				this.hide();
			}
		}
		
		//show column
		show(silent, responsiveToggle){
			if(!this.visible){
				this.visible = true;
				
				this.element.style.display = "";
				
				if(this.parent.isGroup){
					this.parent.checkColumnVisibility();
				}
				
				this.cells.forEach(function(cell){
					cell.show();
				});
				
				if(!this.isGroup && this.width === null){
					this.reinitializeWidth();
				}
				
				this.table.columnManager.verticalAlignHeaders();
				
				this.dispatch("column-show", this, responsiveToggle);
				
				if(!silent){
					this.dispatchExternal("columnVisibilityChanged", this.getComponent(), true);
				}
				
				if(this.parent.isGroup){
					this.parent.matchChildWidths();
				}
				
				if(!this.silent){
					this.table.columnManager.rerenderColumns();
				}
			}
		}
		
		//hide column
		hide(silent, responsiveToggle){
			if(this.visible){
				this.visible = false;
				
				this.element.style.display = "none";
				
				this.table.columnManager.verticalAlignHeaders();
				
				if(this.parent.isGroup){
					this.parent.checkColumnVisibility();
				}
				
				this.cells.forEach(function(cell){
					cell.hide();
				});
				
				this.dispatch("column-hide", this, responsiveToggle);
				
				if(!silent){
					this.dispatchExternal("columnVisibilityChanged", this.getComponent(), false);
				}
				
				if(this.parent.isGroup){
					this.parent.matchChildWidths();
				}
				
				if(!this.silent){
					this.table.columnManager.rerenderColumns();
				}
			}
		}
		
		matchChildWidths(){
			var childWidth = 0;
			
			if(this.contentElement && this.columns.length){
				this.columns.forEach(function(column){
					if(column.visible){
						childWidth += column.getWidth();
					}
				});
				
				this.contentElement.style.maxWidth = (childWidth - 1) + "px";
				if (this.table.initialized) {
					this.element.style.width = childWidth + "px";
				}
				
				if(this.parent.isGroup){
					this.parent.matchChildWidths();
				}
			}
		}
		
		removeChild(child){
			var index = this.columns.indexOf(child);
			
			if(index > -1){
				this.columns.splice(index, 1);
			}
			
			if(!this.columns.length){
				this.delete();
			}
		}
		
		setWidth(width){
			this.widthFixed = true;
			this.setWidthActual(width);
		}
		
		setWidthActual(width){
			if(isNaN(width)){
				width = Math.floor((this.table.element.clientWidth/100) * parseInt(width));
			}
			
			width = Math.max(this.minWidth, width);
			
			if(this.maxWidth){
				width = Math.min(this.maxWidth, width);
			}
			
			this.width = width;
			this.widthStyled = width ? width + "px" : "";
			
			this.element.style.width = this.widthStyled;
			
			if(!this.isGroup){
				this.cells.forEach(function(cell){
					cell.setWidth();
				});
			}
			
			if(this.parent.isGroup){
				this.parent.matchChildWidths();
			}
			
			this.dispatch("column-width", this);
			
			if(this.subscribedExternal("columnWidth")){
				this.dispatchExternal("columnWidth", this.getComponent());
			}
		}
		
		checkCellHeights(){
			var rows = [];
			
			this.cells.forEach(function(cell){
				if(cell.row.heightInitialized){
					if(cell.row.getElement().offsetParent !== null){
						rows.push(cell.row);
						cell.row.clearCellHeight();
					}else {
						cell.row.heightInitialized = false;
					}
				}
			});
			
			rows.forEach(function(row){
				row.calcHeight();
			});
			
			rows.forEach(function(row){
				row.setCellHeight();
			});
		}
		
		getWidth(){
			var width = 0;
			
			if(this.isGroup){
				this.columns.forEach(function(column){
					if(column.visible){
						width += column.getWidth();
					}
				});
			}else {
				width = this.width;
			}
			
			return width;
		}
		
		getLeftOffset(){
			var offset = this.element.offsetLeft;
			
			if(this.parent.isGroup){
				offset += this.parent.getLeftOffset();
			}
			
			return offset;
		}
		
		getHeight(){
			return Math.ceil(this.element.getBoundingClientRect().height);
		}
		
		setMinWidth(minWidth){
			if(this.maxWidth && minWidth > this.maxWidth){
				minWidth = this.maxWidth;
				
				console.warn("the minWidth ("+ minWidth + "px) for column '" + this.field + "' cannot be bigger that its maxWidth ("+ this.maxWidthStyled + ")");
			}
			
			this.minWidth = minWidth;
			this.minWidthStyled = minWidth ? minWidth + "px" : "";
			
			this.element.style.minWidth = this.minWidthStyled;
			
			this.cells.forEach(function(cell){
				cell.setMinWidth();
			});
		}
		
		setMaxWidth(maxWidth){
			if(this.minWidth && maxWidth < this.minWidth){
				maxWidth = this.minWidth;
				
				console.warn("the maxWidth ("+ maxWidth + "px) for column '" + this.field + "' cannot be smaller that its minWidth ("+ this.minWidthStyled + ")");
			}
			
			this.maxWidth = maxWidth;
			this.maxWidthStyled = maxWidth ? maxWidth + "px" : "";
			
			this.element.style.maxWidth = this.maxWidthStyled;
			
			this.cells.forEach(function(cell){
				cell.setMaxWidth();
			});
		}
		
		delete(){
			return new Promise((resolve, reject) => {
				if(this.isGroup){
					this.columns.forEach(function(column){
						column.delete();
					});
				}
				
				this.dispatch("column-delete", this);
				
				var cellCount = this.cells.length;
				
				for(let i = 0; i < cellCount; i++){
					this.cells[0].delete();
				}
				
				if(this.element.parentNode){
					this.element.parentNode.removeChild(this.element);
				}
				
				this.element = false;
				this.contentElement = false;
				this.titleElement = false;
				this.groupElement = false;
				
				if(this.parent.isGroup){
					this.parent.removeChild(this);
				}
				
				this.table.columnManager.deregisterColumn(this);
				
				this.table.columnManager.rerenderColumns(true);
				
				this.dispatch("column-deleted", this);
				
				resolve();
			});
		}
		
		columnRendered(){
			if(this.titleFormatterRendered){
				this.titleFormatterRendered();
			}
			
			this.dispatch("column-rendered", this);
		}
		
		//////////////// Cell Management /////////////////
		//generate cell for this column
		generateCell(row){
			var cell = new Cell(this, row);
			
			this.cells.push(cell);
			
			return cell;
		}
		
		nextColumn(){
			var index = this.table.columnManager.findColumnIndex(this);
			return index > -1 ? this._nextVisibleColumn(index + 1) : false;
		}
		
		_nextVisibleColumn(index){
			var column = this.table.columnManager.getColumnByIndex(index);
			return !column || column.visible ? column : this._nextVisibleColumn(index + 1);
		}
		
		prevColumn(){
			var index = this.table.columnManager.findColumnIndex(this);
			return index > -1 ? this._prevVisibleColumn(index - 1) : false;
		}
		
		_prevVisibleColumn(index){
			var column = this.table.columnManager.getColumnByIndex(index);
			return !column || column.visible ? column : this._prevVisibleColumn(index - 1);
		}
		
		reinitializeWidth(force){
			this.widthFixed = false;
			
			//set width if present
			if(typeof this.definition.width !== "undefined" && !force){
				// maxInitialWidth ignored here as width specified
				this.setWidth(this.definition.width);
			}
			
			this.dispatch("column-width-fit-before", this);
			
			this.fitToData(force);
			
			this.dispatch("column-width-fit-after", this);
		}
		
		//set column width to maximum cell width for non group columns
		fitToData(force){
			if(this.isGroup){
				return;
			}
			
			if(!this.widthFixed){
				this.element.style.width = "";
				
				this.cells.forEach((cell) => {
					cell.clearWidth();
				});
			}
			
			var maxWidth = this.element.offsetWidth;
			
			if(!this.width || !this.widthFixed){
				this.cells.forEach((cell) => {
					var width = cell.getWidth();
					
					if(width > maxWidth){
						maxWidth = width;
					}
				});
				
				if(maxWidth){
					var setTo = maxWidth + 1;
					
					if(force){
						this.setWidth(setTo);
					}else {
						if (this.maxInitialWidth && !force) {
							setTo = Math.min(setTo, this.maxInitialWidth);
						}
						this.setWidthActual(setTo);
					}
				}
			}
		}
		
		updateDefinition(updates){
			var definition;
			
			if(!this.isGroup){
				if(!this.parent.isGroup){
					definition = Object.assign({}, this.getDefinition());
					definition = Object.assign(definition, updates);
					
					return this.table.columnManager.addColumn(definition, false, this)
						.then((column) => {
						
							if(definition.field == this.field){
								this.field = false; //clear field name to prevent deletion of duplicate column from arrays
							}
						
							return this.delete()
								.then(() => {
									return column.getComponent();
								});
						
						});
				}else {
					console.error("Column Update Error - The updateDefinition function is only available on ungrouped columns");
					return Promise.reject("Column Update Error - The updateDefinition function is only available on columns, not column groups");
				}
			}else {
				console.error("Column Update Error - The updateDefinition function is only available on ungrouped columns");
				return Promise.reject("Column Update Error - The updateDefinition function is only available on columns, not column groups");
			}
		}
		
		deleteCell(cell){
			var index = this.cells.indexOf(cell);
			
			if(index > -1){
				this.cells.splice(index, 1);
			}
		}
		
		//////////////// Object Generation /////////////////
		getComponent(){
			if(!this.component){
				this.component = new ColumnComponent(this);
			}
			
			return this.component;
		}
		
		getPosition(){
			return this.table.columnManager.getVisibleColumnsByIndex().indexOf(this) + 1;
		}
		
		getParentComponent(){
			return this.parent instanceof Column ? this.parent.getComponent() : false;
		}
	}

	class Helpers{

		static elVisible(el){
			return !(el.offsetWidth <= 0 && el.offsetHeight <= 0);
		}

		static elOffset(el){
			var box = el.getBoundingClientRect();

			return {
				top: box.top + window.pageYOffset - document.documentElement.clientTop,
				left: box.left + window.pageXOffset - document.documentElement.clientLeft
			};
		}

		static retrieveNestedData(separator, field, data){
			var structure = separator ? field.split(separator) : [field],
			length = structure.length,
			output;

			for(let i = 0; i < length; i++){

				data = data[structure[i]];

				output = data;

				if(!data){
					break;
				}
			}

			return output;
		}

		static deepClone(obj, clone, list = []){
			var objectProto = {}.__proto__,
			arrayProto = [].__proto__;

			if (!clone){
				clone = Object.assign(Array.isArray(obj) ? [] : {}, obj);
			}

			for(var i in obj) {
				let subject = obj[i],
				match, copy;

				if(subject != null && typeof subject === "object" && (subject.__proto__ === objectProto || subject.__proto__ === arrayProto)){
					match = list.findIndex((item) => {
						return item.subject === subject;
					});

					if(match > -1){
						clone[i] = list[match].copy;
					}else {
						copy = Object.assign(Array.isArray(subject) ? [] : {}, subject);

						list.unshift({subject, copy});

						clone[i] = this.deepClone(subject, copy, list);
					}
				}
			}

			return clone;
		}
	}

	class OptionsList {
		constructor(table, msgType, defaults = {}){
			this.table = table;
			this.msgType = msgType;
			this.registeredDefaults = Object.assign({}, defaults);
		}
		
		register(option, value){
			this.registeredDefaults[option] = value;
		}
		
		generate(defaultOptions, userOptions = {}){
			var output = Object.assign({}, this.registeredDefaults),
			warn = this.table.options.debugInvalidOptions || userOptions.debugInvalidOptions === true;
			
			Object.assign(output, defaultOptions);
			
			for (let key in userOptions){
				if(!output.hasOwnProperty(key)){
					if(warn){
						console.warn("Invalid " + this.msgType + " option:", key);
					}

					output[key] = userOptions.key;
				}
			}
		
			
			for (let key in output){
				if(key in userOptions){
					output[key] = userOptions[key];
				}else {
					if(Array.isArray(output[key])){
						output[key] = Object.assign([], output[key]);
					}else if(typeof output[key] === "object" && output[key] !== null){
						output[key] = Object.assign({}, output[key]);
					}else if (typeof output[key] === "undefined"){
						delete output[key];
					}
				}
			}
			
			return output;
		}
	}

	class Renderer extends CoreFeature{
		constructor(table){
			super(table);

			this.elementVertical = table.rowManager.element;
			this.elementHorizontal = table.columnManager.element;
			this.tableElement =  table.rowManager.tableElement;

			this.verticalFillMode = "fit"; // used by row manager to determine how to size the render area ("fit" - fits container to the contents, "fill" - fills the container without resizing it)
		}


		///////////////////////////////////
		/////// Internal Bindings /////////
		///////////////////////////////////

		initialize(){
			//initialize core functionality
		}

		clearRows(){
			//clear down existing rows layout
		}

		clearColumns(){
			//clear down existing columns layout
		}


		reinitializeColumnWidths(columns){
			//resize columns to fit data
		}


		renderRows(){
			//render rows from a clean slate
		}

		renderColumns(){
			//render columns from a clean slate
		}

		rerenderRows(callback){
			// rerender rows and keep position
			if(callback){
				callback();
			}
		}

		rerenderColumns(update, blockRedraw){
			//rerender columns
		}

		renderRowCells(row){
			//render the cells in a row
		}

		rerenderRowCells(row, force){
			//rerender the cells in a row
		}

		scrollColumns(left, dir){
			//handle horizontal scrolling
		}

		scrollRows(top, dir){
			//handle vertical scrolling
		}

		resize(){
			//container has resized, carry out any needed recalculations (DO NOT RERENDER IN THIS FUNCTION)
		}

		scrollToRow(row){
			//scroll to a specific row
		}

		scrollToRowNearestTop(row){
			//determine weather the row is nearest the top or bottom of the table, return true for top or false for bottom
		}

		visibleRows(includingBuffer){
			//return the visible rows
			return [];
		}

		///////////////////////////////////
		//////// Helper Functions /////////
		///////////////////////////////////

		rows(){
			return this.table.rowManager.getDisplayRows();
		}

		styleRow(row, index){
			var rowEl = row.getElement();

			if(index % 2){
				rowEl.classList.add("tabulator-row-even");
				rowEl.classList.remove("tabulator-row-odd");
			}else {
				rowEl.classList.add("tabulator-row-odd");
				rowEl.classList.remove("tabulator-row-even");
			}
		}

		///////////////////////////////////
		/////// External Triggers /////////
		/////// (DO NOT OVERRIDE) /////////
		///////////////////////////////////

		clear(){
			//clear down existing layout
			this.clearRows();
			this.clearColumns();
		}

		render(){
			//render from a clean slate
			this.renderRows();
			this.renderColumns();
		}

		rerender(callback){
			// rerender and keep position
			this.rerenderRows();
			this.rerenderColumns();
		}

		scrollToRowPosition(row, position, ifVisible){
			var rowIndex = this.rows().indexOf(row),
			rowEl = row.getElement(),
			offset = 0;

			return new Promise((resolve, reject) => {
				if(rowIndex > -1){

					if(typeof ifVisible === "undefined"){
						ifVisible = this.table.options.scrollToRowIfVisible;
					}

					//check row visibility
					if(!ifVisible){
						if(Helpers.elVisible(rowEl)){
							offset = Helpers.elOffset(rowEl).top - Helpers.elOffset(this.elementVertical).top;
							
							if(offset > 0 && offset < this.elementVertical.clientHeight - rowEl.offsetHeight){
								resolve();
								return false;
							}
						}
					}

					if(typeof position === "undefined"){
						position = this.table.options.scrollToRowPosition;
					}

					if(position === "nearest"){
						position = this.scrollToRowNearestTop(row) ? "top" : "bottom";
					}

					//scroll to row
					this.scrollToRow(row);

					//align to correct position
					switch(position){
						case "middle":
						case "center":

							if(this.elementVertical.scrollHeight - this.elementVertical.scrollTop == this.elementVertical.clientHeight){
								this.elementVertical.scrollTop = this.elementVertical.scrollTop + (rowEl.offsetTop - this.elementVertical.scrollTop) - ((this.elementVertical.scrollHeight - rowEl.offsetTop) / 2);
							}else {
								this.elementVertical.scrollTop = this.elementVertical.scrollTop - (this.elementVertical.clientHeight / 2);
							}

							break;

						case "bottom":

							if(this.elementVertical.scrollHeight - this.elementVertical.scrollTop == this.elementVertical.clientHeight){
								this.elementVertical.scrollTop = this.elementVertical.scrollTop - (this.elementVertical.scrollHeight - rowEl.offsetTop) + rowEl.offsetHeight;
							}else {
								this.elementVertical.scrollTop = this.elementVertical.scrollTop - this.elementVertical.clientHeight + rowEl.offsetHeight;
							}

							break;

						case "top":
							this.elementVertical.scrollTop = rowEl.offsetTop;					
							break;
					}

					resolve();

				}else {
					console.warn("Scroll Error - Row not visible");
					reject("Scroll Error - Row not visible");
				}
			});
		}
	}

	class BasicHorizontal extends Renderer{
		constructor(table){
			super(table);
		}
		
		renderRowCells(row, inFragment) {
			const rowFrag = document.createDocumentFragment();
			row.cells.forEach((cell) => {
				rowFrag.appendChild(cell.getElement());
			});
			row.element.appendChild(rowFrag);
			
			if(!inFragment){
				row.cells.forEach((cell) => {
					cell.cellRendered();
				});
			}
		}
		
		reinitializeColumnWidths(columns){
			columns.forEach(function(column){
				column.reinitializeWidth();
			});
		}
	}

	class VirtualDomHorizontal extends Renderer{
		constructor(table){
			super(table);
			
			this.leftCol = 0;
			this.rightCol = 0;
			this.scrollLeft = 0;
			
			this.vDomScrollPosLeft = 0;
			this.vDomScrollPosRight = 0;
			
			this.vDomPadLeft = 0;
			this.vDomPadRight = 0;
			
			this.fitDataColAvg = 0;
			
			this.windowBuffer = 200; //pixel margin to make column visible before it is shown on screen
			
			this.visibleRows = null;
			
			this.initialized = false;
			this.isFitData = false;
			
			this.columns = [];
		}
		
		initialize(){
			this.compatibilityCheck();
			this.layoutCheck();
			this.vertScrollListen();
		}
		
		compatibilityCheck(){		
			if(this.options("layout") == "fitDataTable"){
				console.warn("Horizontal Virtual DOM is not compatible with fitDataTable layout mode");
			}
			
			if(this.options("responsiveLayout")){
				console.warn("Horizontal Virtual DOM is not compatible with responsive columns");
			}
			
			if(this.options("rtl")){
				console.warn("Horizontal Virtual DOM is not currently compatible with RTL text direction");
			}
		}
		
		layoutCheck(){
			this.isFitData = this.options("layout").startsWith('fitData');
		}
		
		vertScrollListen(){
			this.subscribe("scroll-vertical", this.clearVisRowCache.bind(this));
			this.subscribe("data-refreshed", this.clearVisRowCache.bind(this));
		}
		
		clearVisRowCache(){
			this.visibleRows = null;
		}
		
		//////////////////////////////////////
		///////// Public Functions ///////////
		//////////////////////////////////////
		
		renderColumns(row, force){
			this.dataChange();
		}
		
		
		scrollColumns(left, dir){
			if(this.scrollLeft != left){
				this.scrollLeft = left;
				
				this.scroll(left - (this.vDomScrollPosLeft + this.windowBuffer));
			}
		}
		
		calcWindowBuffer(){
			var buffer = this.elementVertical.clientWidth;
			
			this.table.columnManager.columnsByIndex.forEach((column) => {
				if(column.visible){
					var width = column.getWidth();
					
					if(width > buffer){
						buffer = width;
					}
				}
			});
			
			this.windowBuffer = buffer * 2;
		}
		
		rerenderColumns(update, blockRedraw){		
			var old = {
				cols:this.columns,
				leftCol:this.leftCol,
				rightCol:this.rightCol,
			},
			colPos = 0;
			
			if(update && !this.initialized){
				return;
			}
			
			this.clear();
			
			this.calcWindowBuffer();
			
			this.scrollLeft = this.elementVertical.scrollLeft;
			
			this.vDomScrollPosLeft = this.scrollLeft - this.windowBuffer;
			this.vDomScrollPosRight = this.scrollLeft + this.elementVertical.clientWidth + this.windowBuffer;
			
			this.table.columnManager.columnsByIndex.forEach((column) => {
				var config = {},
				width;
				
				if(column.visible){
					if(!column.modules.frozen){			
						width = column.getWidth();
						
						config.leftPos = colPos;
						config.rightPos = colPos + width;
						
						config.width = width;
						
						if (this.isFitData) {
							config.fitDataCheck = column.modules.vdomHoz ? column.modules.vdomHoz.fitDataCheck : true;
						}
						
						if((colPos + width > this.vDomScrollPosLeft) && (colPos < this.vDomScrollPosRight)){
							//column is visible
							
							if(this.leftCol == -1){
								this.leftCol = this.columns.length;
								this.vDomPadLeft = colPos;
							}
							
							this.rightCol = this.columns.length;
						}else {
							// column is hidden
							if(this.leftCol !== -1){
								this.vDomPadRight += width;
							}
						}
						
						this.columns.push(column);
						
						column.modules.vdomHoz = config;
						
						colPos += width;
					}
				}
			});
			
			this.tableElement.style.paddingLeft = this.vDomPadLeft + "px";
			this.tableElement.style.paddingRight = this.vDomPadRight + "px";
			
			this.initialized = true;
			
			if(!blockRedraw){
				if(!update || this.reinitChanged(old)){
					this.reinitializeRows();
				}
			}
			
			this.elementVertical.scrollLeft = this.scrollLeft;
		}
		
		renderRowCells(row){
			if(this.initialized){
				this.initializeRow(row);
			}else {
				const rowFrag = document.createDocumentFragment();
				row.cells.forEach((cell) => {
					rowFrag.appendChild(cell.getElement());
				});
				row.element.appendChild(rowFrag);
				
				row.cells.forEach((cell) => {
					cell.cellRendered();
				});
			}
		}
		
		rerenderRowCells(row, force){
			this.reinitializeRow(row, force);
		}
		
		reinitializeColumnWidths(columns){
			for(let i = this.leftCol; i <= this.rightCol; i++){
				let col = this.columns[i];
				
				if(col){
					col.reinitializeWidth();
				}
			}
		}
		
		//////////////////////////////////////
		//////// Internal Rendering //////////
		//////////////////////////////////////
		
		deinitialize(){
			this.initialized = false;
		}
		
		clear(){
			this.columns = [];
			
			this.leftCol = -1;
			this.rightCol = 0;
			
			this.vDomScrollPosLeft = 0;
			this.vDomScrollPosRight = 0;
			this.vDomPadLeft = 0;
			this.vDomPadRight = 0;
		}
		
		dataChange(){
			var change = false,
			row, rowEl;
			
			if(this.isFitData){
				this.table.columnManager.columnsByIndex.forEach((column) => {
					if(!column.definition.width && column.visible){
						change = true;
					}
				});
				
				if(change && this.table.rowManager.getDisplayRows().length){
					this.vDomScrollPosRight = this.scrollLeft + this.elementVertical.clientWidth + this.windowBuffer;
					
					row = this.chain("rows-sample", [1], [], () => {
						return this.table.rowManager.getDisplayRows();
					})[0];
					
					if(row){
						rowEl = row.getElement();
						
						row.generateCells();
						
						this.tableElement.appendChild(rowEl);
						
						for(let colEnd = 0; colEnd < row.cells.length; colEnd++){
							let cell = row.cells[colEnd];
							rowEl.appendChild(cell.getElement());
							
							cell.column.reinitializeWidth();
						}
						
						rowEl.parentNode.removeChild(rowEl);
						
						this.rerenderColumns(false, true);
					}
				}
			}else {
				if(this.options("layout") === "fitColumns"){
					this.layoutRefresh();
					this.rerenderColumns(false, true);
				}
			}
		}
		
		reinitChanged(old){
			var match = true;
			
			if(old.cols.length !== this.columns.length || old.leftCol !== this.leftCol || old.rightCol !== this.rightCol){
				return true;
			}
			
			old.cols.forEach((col, i) => {
				if(col !== this.columns[i]){
					match = false;
				}
			});
			
			return !match;
		}
		
		reinitializeRows(){
			var visibleRows = this.getVisibleRows(),
			otherRows = this.table.rowManager.getRows().filter(row => !visibleRows.includes(row));
			
			visibleRows.forEach((row) => {
				this.reinitializeRow(row, true);
			});
			
			otherRows.forEach((row) =>{
				row.deinitialize();
			});
		}
		
		getVisibleRows(){
			if (!this.visibleRows){
				this.visibleRows = this.table.rowManager.getVisibleRows();
			}
			
			return this.visibleRows;	
		}
		
		scroll(diff){
			this.vDomScrollPosLeft += diff;
			this.vDomScrollPosRight += diff;
			
			if(Math.abs(diff) > (this.windowBuffer / 2)){
				this.rerenderColumns();
			}else {
				if(diff > 0){
					//scroll right
					this.addColRight();
					this.removeColLeft();
				}else {
					//scroll left
					this.addColLeft();
					this.removeColRight();
				}
			}
		}
		
		colPositionAdjust (start, end, diff){
			for(let i = start; i < end; i++){
				let column = this.columns[i];
				
				column.modules.vdomHoz.leftPos += diff;
				column.modules.vdomHoz.rightPos += diff;
			}
		}
		
		addColRight(){
			var changes = false,
			working = true;
			
			while(working){
				
				let column = this.columns[this.rightCol + 1];
				
				if(column){
					if(column.modules.vdomHoz.leftPos <= this.vDomScrollPosRight){
						changes = true;
						
						this.getVisibleRows().forEach((row) => {
							if(row.type !== "group"){
								var cell = row.getCell(column);
								row.getElement().insertBefore(cell.getElement(), row.getCell(this.columns[this.rightCol]).getElement().nextSibling);
								cell.cellRendered();
							}
						});
						
						this.fitDataColActualWidthCheck(column);
						
						this.rightCol++; // Don't move this below the >= check below
						
						this.getVisibleRows().forEach((row) => {
							if(row.type !== "group"){
								row.modules.vdomHoz.rightCol = this.rightCol;
							}
						});
						
						if(this.rightCol >= (this.columns.length - 1)){
							this.vDomPadRight = 0;
						}else {
							this.vDomPadRight -= column.getWidth();
						}	
					}else {
						working = false;
					}
				}else {
					working = false;
				}
			}
			
			if(changes){
				this.tableElement.style.paddingRight = this.vDomPadRight + "px";
			}
		}
		
		addColLeft(){
			var changes = false,
			working = true;
			
			while(working){
				let column = this.columns[this.leftCol - 1];
				
				if(column){
					if(column.modules.vdomHoz.rightPos >= this.vDomScrollPosLeft){
						changes = true;
						
						this.getVisibleRows().forEach((row) => {
							if(row.type !== "group"){
								var cell = row.getCell(column);
								row.getElement().insertBefore(cell.getElement(), row.getCell(this.columns[this.leftCol]).getElement());
								cell.cellRendered();
							}
						});
						
						this.leftCol--; // don't move this below the <= check below
						
						this.getVisibleRows().forEach((row) => {
							if(row.type !== "group"){
								row.modules.vdomHoz.leftCol = this.leftCol;
							}
						});
						
						if(this.leftCol <= 0){ // replicating logic in addColRight
							this.vDomPadLeft = 0;
						}else {
							this.vDomPadLeft -= column.getWidth();
						}
						
						let diff = this.fitDataColActualWidthCheck(column);
						
						if(diff){
							this.scrollLeft = this.elementVertical.scrollLeft = this.elementVertical.scrollLeft + diff;
							this.vDomPadRight -= diff;
						}
						
					}else {
						working = false;
					}
				}else {
					working = false;
				}
			}
			
			if(changes){
				this.tableElement.style.paddingLeft = this.vDomPadLeft + "px";
			}
		}
		
		removeColRight(){
			var changes = false,
			working = true;
			
			while(working){
				let column = this.columns[this.rightCol];
				
				if(column){
					if(column.modules.vdomHoz.leftPos > this.vDomScrollPosRight){
						changes = true;
						
						this.getVisibleRows().forEach((row) => {
							if(row.type !== "group"){
								var cell = row.getCell(column);
								
								try {
									row.getElement().removeChild(cell.getElement());
								} catch (ex) {
									console.warn("Could not removeColRight", ex.message);
								}
							}
						});
						
						this.vDomPadRight += column.getWidth();
						this.rightCol --;
						
						this.getVisibleRows().forEach((row) => {
							if(row.type !== "group"){
								row.modules.vdomHoz.rightCol = this.rightCol;
							}
						});
					}else {
						working = false;
					}
				}else {
					working = false;
				}
			}
			
			if(changes){
				this.tableElement.style.paddingRight = this.vDomPadRight + "px";
			}
		}
		
		removeColLeft(){
			var changes = false,
			working = true;
			
			while(working){
				let column = this.columns[this.leftCol];
				
				if(column){
					if(column.modules.vdomHoz.rightPos < this.vDomScrollPosLeft){
						changes = true;
						
						this.getVisibleRows().forEach((row) => {					
							if(row.type !== "group"){
								var cell = row.getCell(column);
								
								try {
									row.getElement().removeChild(cell.getElement());
								} catch (ex) {
									console.warn("Could not removeColLeft", ex.message);
								}
							}
						});
						
						this.vDomPadLeft += column.getWidth();
						this.leftCol ++;
						
						this.getVisibleRows().forEach((row) => {
							if(row.type !== "group"){
								row.modules.vdomHoz.leftCol = this.leftCol;
							}
						});
					}else {
						working = false;
					}
				}else {
					working = false;
				}
			}
			
			if(changes){
				this.tableElement.style.paddingLeft = this.vDomPadLeft + "px";
			}
		}
		
		fitDataColActualWidthCheck(column){
			var newWidth, widthDiff;
			
			if(column.modules.vdomHoz.fitDataCheck){
				column.reinitializeWidth();
				
				newWidth = column.getWidth();
				widthDiff = newWidth - column.modules.vdomHoz.width;
				
				if(widthDiff){
					column.modules.vdomHoz.rightPos += widthDiff;
					column.modules.vdomHoz.width = newWidth;
					this.colPositionAdjust(this.columns.indexOf(column) + 1, this.columns.length, widthDiff);
				}
				
				column.modules.vdomHoz.fitDataCheck = false;
			}
			
			return widthDiff;
		}
		
		initializeRow(row){
			if(row.type !== "group"){
				row.modules.vdomHoz = {
					leftCol:this.leftCol,
					rightCol:this.rightCol,
				};
				
				if(this.table.modules.frozenColumns){
					this.table.modules.frozenColumns.leftColumns.forEach((column) => {
						this.appendCell(row, column);
					});
				}
				
				for(let i = this.leftCol; i <= this.rightCol; i++){
					this.appendCell(row, this.columns[i]);
				}
				
				if(this.table.modules.frozenColumns){
					this.table.modules.frozenColumns.rightColumns.forEach((column) => {
						this.appendCell(row, column);
					});
				}
			}
		}
		
		appendCell(row, column){
			if(column && column.visible){
				let cell = row.getCell(column);
				
				row.getElement().appendChild(cell.getElement());
				cell.cellRendered();
			}
		}
		
		reinitializeRow(row, force){
			if(row.type !== "group"){
				if(force || !row.modules.vdomHoz || row.modules.vdomHoz.leftCol !== this.leftCol || row.modules.vdomHoz.rightCol !== this.rightCol){
					
					var rowEl = row.getElement();
					while(rowEl.firstChild) rowEl.removeChild(rowEl.firstChild);
					
					this.initializeRow(row);
				}
			}
		}
	}

	class ColumnManager extends CoreFeature {
		
		constructor (table){
			super(table);
			
			this.blockHozScrollEvent = false;
			this.headersElement = null;
			this.contentsElement = null;
			this.rowHeader = null;
			this.element = null ; //containing element
			this.columns = []; // column definition object
			this.columnsByIndex = []; //columns by index
			this.columnsByField = {}; //columns by field
			this.scrollLeft = 0;
			this.optionsList = new OptionsList(this.table, "column definition", defaultColumnOptions);
			
			this.redrawBlock = false; //prevent redraws to allow multiple data manipulations before continuing
			this.redrawBlockUpdate = null; //store latest redraw update only status
			
			this.renderer = null;
		}
		
		////////////// Setup Functions /////////////////
		
		initialize(){
			this.initializeRenderer();
			
			this.headersElement = this.createHeadersElement();
			this.contentsElement = this.createHeaderContentsElement();
			this.element = this.createHeaderElement();
			
			this.contentsElement.insertBefore(this.headersElement, this.contentsElement.firstChild);
			this.element.insertBefore(this.contentsElement, this.element.firstChild);
			
			this.initializeScrollWheelWatcher();
			
			this.subscribe("scroll-horizontal", this.scrollHorizontal.bind(this));
			this.subscribe("scrollbar-vertical", this.padVerticalScrollbar.bind(this));
		}
		
		padVerticalScrollbar(width){
			if(this.table.rtl){
				this.headersElement.style.marginLeft = width + "px";
			}else {
				this.headersElement.style.marginRight = width + "px";
			}
		}
		
		initializeRenderer(){
			var renderClass;
			
			var renderers = {
				"virtual": VirtualDomHorizontal,
				"basic": BasicHorizontal,
			};
			
			if(typeof this.table.options.renderHorizontal === "string"){
				renderClass = renderers[this.table.options.renderHorizontal];
			}else {
				renderClass = this.table.options.renderHorizontal;
			}
			
			if(renderClass){
				this.renderer = new renderClass(this.table, this.element, this.tableElement);
				this.renderer.initialize();
			}else {
				console.error("Unable to find matching renderer:", this.table.options.renderHorizontal);
			}
		}
		
		
		createHeadersElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-headers");
			el.setAttribute("role", "row");
			
			return el;
		}
		
		createHeaderContentsElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-header-contents");
			el.setAttribute("role", "rowgroup");
			
			return el;
		}
		
		createHeaderElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-header");
			el.setAttribute("role", "rowgroup");
			
			if(!this.table.options.headerVisible){
				el.classList.add("tabulator-header-hidden");
			}
			
			return el;
		}
		
		//return containing element
		getElement(){
			return this.element;
		}
		
		//return containing contents element
		getContentsElement(){
			return this.contentsElement;
		}
		
		
		//return header containing element
		getHeadersElement(){
			return this.headersElement;
		}
		
		//scroll horizontally to match table body
		scrollHorizontal(left){
			this.contentsElement.scrollLeft = left;
			
			this.scrollLeft = left;
			
			this.renderer.scrollColumns(left);
		}
		
		initializeScrollWheelWatcher(){
			this.contentsElement.addEventListener("wheel", (e) => {
				var left;
				
				if(e.deltaX){
					left = this.contentsElement.scrollLeft + e.deltaX;
					
					this.table.rowManager.scrollHorizontal(left);
					this.table.columnManager.scrollHorizontal(left);
				}
			});
		}
		
		///////////// Column Setup Functions /////////////
		generateColumnsFromRowData(data){
			var cols = [],
			collProgress = {},
			rowSample = this.table.options.autoColumns === "full" ? data : [data[0]],
			definitions = this.table.options.autoColumnsDefinitions;
			
			if(data && data.length){
				
				rowSample.forEach((row) => {
					
					Object.keys(row).forEach((key, index) => {
						let value = row[key],
						col;
						
						if(!collProgress[key]){
							col = {
								field:key,
								title:key,
								sorter:this.calculateSorterFromValue(value),
							};

							cols.splice(index, 0, col);
							collProgress[key] = typeof value === "undefined" ? col : true;
						}else if(collProgress[key] !== true){
							if(typeof value !== "undefined"){
								collProgress[key].sorter = this.calculateSorterFromValue(value);
								collProgress[key] = true;
							}
						}
					});
				});
				
				if(definitions){
					
					switch(typeof definitions){
						case "function":
							this.table.options.columns = definitions.call(this.table, cols);
							break;
						
						case "object":
							if(Array.isArray(definitions)){
								cols.forEach((col) => {
									var match = definitions.find((def) => {
										return def.field === col.field;
									});
									
									if(match){
										Object.assign(col, match);
									}
								});
								
							}else {
								cols.forEach((col) => {
									if(definitions[col.field]){
										Object.assign(col, definitions[col.field]);
									}
								});
							}
							
							this.table.options.columns = cols;
							break;
					}
				}else {
					this.table.options.columns = cols;
				}
				
				this.setColumns(this.table.options.columns);
			}
		}
		
		calculateSorterFromValue(value){
			var sorter;
			
			switch(typeof value){
				case "undefined":
					sorter = "string";
					break;
				
				case "boolean":
					sorter = "boolean";
					break;
				
				case "number":
					sorter = "number";
					break;
				
				case "object":
					if(Array.isArray(value)){
						sorter = "array";
					}else {
						sorter = "string";
					}
					break;
				
				default:
					if(!isNaN(value) && value !== ""){
						sorter = "number";
					}else {
						if(value.match(/((^[0-9]+[a-z]+)|(^[a-z]+[0-9]+))+$/i)){
							sorter = "alphanum";
						}else {
							sorter = "string";
						}
					}
					break;
			}
			
			return sorter;
		}
		
		setColumns(cols, row){
			while(this.headersElement.firstChild) this.headersElement.removeChild(this.headersElement.firstChild);
			
			this.columns = [];
			this.columnsByIndex = [];
			this.columnsByField = {};
			
			this.dispatch("columns-loading");
			this.dispatchExternal("columnsLoading");
			
			if(this.table.options.rowHeader){
				this.rowHeader = new Column(this.table.options.rowHeader === true ? {} : this.table.options.rowHeader, this, true);
				this.columns.push(this.rowHeader);
				this.headersElement.appendChild(this.rowHeader.getElement());
				this.rowHeader.columnRendered();
			}
			
			cols.forEach((def, i) => {
				this._addColumn(def);
			});
			
			this._reIndexColumns();
			
			this.dispatch("columns-loaded");

			if(this.subscribedExternal("columnsLoaded")){
				this.dispatchExternal("columnsLoaded", this.getComponents());
			}
			
			this.rerenderColumns(false, true);
			
			this.redraw(true);
		}
		
		_addColumn(definition, before, nextToColumn){
			var column = new Column(definition, this),
			colEl = column.getElement(),
			index = nextToColumn ? this.findColumnIndex(nextToColumn) : nextToColumn;
			
			//prevent adding of rows in front of row header
			if(before && this.rowHeader && (!nextToColumn || nextToColumn === this.rowHeader)){
				before = false;
				nextToColumn = this.rowHeader;
				index = 0;
			}
			
			if(nextToColumn && index > -1){
				var topColumn = nextToColumn.getTopColumn();
				var parentIndex = this.columns.indexOf(topColumn);
				var nextEl = topColumn.getElement();
				
				if(before){
					this.columns.splice(parentIndex, 0, column);
					nextEl.parentNode.insertBefore(colEl, nextEl);
				}else {
					this.columns.splice(parentIndex + 1, 0, column);
					nextEl.parentNode.insertBefore(colEl, nextEl.nextSibling);
				}
			}else {
				if(before){
					this.columns.unshift(column);
					this.headersElement.insertBefore(column.getElement(), this.headersElement.firstChild);
				}else {
					this.columns.push(column);
					this.headersElement.appendChild(column.getElement());
				}
			}
			
			column.columnRendered();
			
			return column;
		}
		
		registerColumnField(col){
			if(col.definition.field){
				this.columnsByField[col.definition.field] = col;
			}
		}
		
		registerColumnPosition(col){
			this.columnsByIndex.push(col);
		}
		
		_reIndexColumns(){
			this.columnsByIndex = [];
			
			this.columns.forEach(function(column){
				column.reRegisterPosition();
			});
		}
		
		//ensure column headers take up the correct amount of space in column groups
		verticalAlignHeaders(){
			var minHeight = 0;
			
			if(!this.redrawBlock){
				
				this.headersElement.style.height="";
				
				this.columns.forEach((column) => {
					column.clearVerticalAlign();
				});
				
				this.columns.forEach((column) => {
					var height = column.getHeight();
					
					if(height > minHeight){
						minHeight = height;
					}
				});
				
				this.headersElement.style.height = minHeight + "px";
				
				this.columns.forEach((column) => {
					column.verticalAlign(this.table.options.columnHeaderVertAlign, minHeight);
				});
				
				this.table.rowManager.adjustTableSize();
			}
		}
		
		//////////////// Column Details /////////////////
		findColumn(subject){
			var columns;
			
			if(typeof subject == "object"){
				
				if(subject instanceof Column){
					//subject is column element
					return subject;
				}else if(subject instanceof ColumnComponent){
					//subject is public column component
					return subject._getSelf() || false;
				}else if(typeof HTMLElement !== "undefined" && subject instanceof HTMLElement){
					
					columns = [];
					
					this.columns.forEach((column) => {
						columns.push(column);
						columns = columns.concat(column.getColumns(true));
					});
					
					//subject is a HTML element of the column header
					let match = columns.find((column) => {
						return column.element === subject;
					});
					
					return match || false;
				}
				
			}else {
				//subject should be treated as the field name of the column
				return this.columnsByField[subject] || false;
			}
			
			//catch all for any other type of input
			return false;
		}
		
		getColumnByField(field){
			return this.columnsByField[field];
		}
		
		getColumnsByFieldRoot(root){
			var matches = [];
			
			Object.keys(this.columnsByField).forEach((field) => {
				var fieldRoot = this.table.options.nestedFieldSeparator ? field.split(this.table.options.nestedFieldSeparator)[0] : field;
				if(fieldRoot === root){
					matches.push(this.columnsByField[field]);
				}
			});
			
			return matches;
		}
		
		getColumnByIndex(index){
			return this.columnsByIndex[index];
		}
		
		getFirstVisibleColumn(){
			var index = this.columnsByIndex.findIndex((col) => {
				return col.visible;
			});
			
			return index > -1 ? this.columnsByIndex[index] : false;
		}
		
		getVisibleColumnsByIndex() {
			return this.columnsByIndex.filter((col) => col.visible);
		}
		
		getColumns(){
			return this.columns;
		}
		
		findColumnIndex(column){
			return this.columnsByIndex.findIndex((col) => {
				return column === col;
			});
		}
		
		//return all columns that are not groups
		getRealColumns(){
			return this.columnsByIndex;
		}
		
		//traverse across columns and call action
		traverse(callback){
			this.columnsByIndex.forEach((column,i) =>{
				callback(column, i);
			});
		}
		
		//get definitions of actual columns
		getDefinitions(active){
			var output = [];
			
			this.columnsByIndex.forEach((column) => {
				if(!active || (active && column.visible)){
					output.push(column.getDefinition());
				}
			});
			
			return output;
		}
		
		//get full nested definition tree
		getDefinitionTree(){
			var output = [];
			
			this.columns.forEach((column) => {
				output.push(column.getDefinition(true));
			});
			
			return output;
		}
		
		getComponents(structured){
			var output = [],
			columns = structured ? this.columns : this.columnsByIndex;
			
			columns.forEach((column) => {
				output.push(column.getComponent());
			});
			
			return output;
		}
		
		getWidth(){
			var width = 0;
			
			this.columnsByIndex.forEach((column) => {
				if(column.visible){
					width += column.getWidth();
				}
			});
			
			return width;
		}
		
		moveColumn(from, to, after){
			to.element.parentNode.insertBefore(from.element, to.element);
			
			if(after){
				to.element.parentNode.insertBefore(to.element, from.element);
			}
			
			this.moveColumnActual(from, to, after);
			
			this.verticalAlignHeaders();
			
			this.table.rowManager.reinitialize();
		}
		
		moveColumnActual(from, to, after){
			if(from.parent.isGroup){
				this._moveColumnInArray(from.parent.columns, from, to, after);
			}else {
				this._moveColumnInArray(this.columns, from, to, after);
			}
			
			this._moveColumnInArray(this.columnsByIndex, from, to, after, true);
			
			this.rerenderColumns(true);
			
			this.dispatch("column-moved", from, to, after);
			
			if(this.subscribedExternal("columnMoved")){
				this.dispatchExternal("columnMoved", from.getComponent(), this.table.columnManager.getComponents());
			}
		}
		
		_moveColumnInArray(columns, from, to, after, updateRows){
			var	fromIndex = columns.indexOf(from),
			toIndex, rows = [];
			
			if (fromIndex > -1) {
				
				columns.splice(fromIndex, 1);
				
				toIndex = columns.indexOf(to);
				
				if (toIndex > -1) {
					
					if(after){
						toIndex = toIndex+1;
					}
					
				}else {
					toIndex = fromIndex;
				}
				
				columns.splice(toIndex, 0, from);
				
				if(updateRows){
					
					rows = this.chain("column-moving-rows", [from, to, after], null, []) || [];
					
					rows = rows.concat(this.table.rowManager.rows);
					
					rows.forEach(function(row){
						if(row.cells.length){
							var cell = row.cells.splice(fromIndex, 1)[0];
							row.cells.splice(toIndex, 0, cell);
						}
					});
					
				}
			}
		}
		
		scrollToColumn(column, position, ifVisible){
			var left = 0,
			offset = column.getLeftOffset(),
			adjust = 0,
			colEl = column.getElement();
			
			
			return new Promise((resolve, reject) => {
				
				if(typeof position === "undefined"){
					position = this.table.options.scrollToColumnPosition;
				}
				
				if(typeof ifVisible === "undefined"){
					ifVisible = this.table.options.scrollToColumnIfVisible;
				}
				
				if(column.visible){
					
					//align to correct position
					switch(position){
						case "middle":
						case "center":
							adjust = -this.element.clientWidth / 2;
							break;
						
						case "right":
							adjust = colEl.clientWidth - this.headersElement.clientWidth;
							break;
					}
					
					//check column visibility
					if(!ifVisible){
						if(offset > 0 && offset + colEl.offsetWidth < this.element.clientWidth){
							return false;
						}
					}
					
					//calculate scroll position
					left = offset + adjust;
					
					left = Math.max(Math.min(left, this.table.rowManager.element.scrollWidth - this.table.rowManager.element.clientWidth),0);
					
					this.table.rowManager.scrollHorizontal(left);
					this.scrollHorizontal(left);
					
					resolve();
				}else {
					console.warn("Scroll Error - Column not visible");
					reject("Scroll Error - Column not visible");
				}
				
			});
		}
		
		//////////////// Cell Management /////////////////
		generateCells(row){
			var cells = [];
			
			this.columnsByIndex.forEach((column) => {
				cells.push(column.generateCell(row));
			});
			
			return cells;
		}
		
		//////////////// Column Management /////////////////
		getFlexBaseWidth(){
			var totalWidth = this.table.element.clientWidth, //table element width
			fixedWidth = 0;
			
			//adjust for vertical scrollbar if present
			if(this.table.rowManager.element.scrollHeight > this.table.rowManager.element.clientHeight){
				totalWidth -= this.table.rowManager.element.offsetWidth - this.table.rowManager.element.clientWidth;
			}
			
			this.columnsByIndex.forEach(function(column){
				var width, minWidth, colWidth;
				
				if(column.visible){
					
					width = column.definition.width || 0;
					
					minWidth = parseInt(column.minWidth);
					
					if(typeof(width) == "string"){
						if(width.indexOf("%") > -1){
							colWidth = (totalWidth / 100) * parseInt(width) ;
						}else {
							colWidth = parseInt(width);
						}
					}else {
						colWidth = width;
					}
					
					fixedWidth += colWidth > minWidth ? colWidth : minWidth;
					
				}
			});
			
			return fixedWidth;
		}
		
		addColumn(definition, before, nextToColumn){
			return new Promise((resolve, reject) => {
				var column = this._addColumn(definition, before, nextToColumn);
				
				this._reIndexColumns();
				
				this.dispatch("column-add", definition, before, nextToColumn);
				
				if(this.layoutMode() != "fitColumns"){
					column.reinitializeWidth();
				}
				
				this.redraw(true);
				
				this.table.rowManager.reinitialize();
				
				this.rerenderColumns();
				
				resolve(column);
			});
		}
		
		//remove column from system
		deregisterColumn(column){
			var field = column.getField(),
			index;
			
			//remove from field list
			if(field){
				delete this.columnsByField[field];
			}
			
			//remove from index list
			index = this.columnsByIndex.indexOf(column);
			
			if(index > -1){
				this.columnsByIndex.splice(index, 1);
			}
			
			//remove from column list
			index = this.columns.indexOf(column);
			
			if(index > -1){
				this.columns.splice(index, 1);
			}
			
			this.verticalAlignHeaders();
			
			this.redraw();
		}
		
		rerenderColumns(update, silent){
			if(!this.redrawBlock){
				this.renderer.rerenderColumns(update, silent);
			}else {
				if(update === false || (update === true && this.redrawBlockUpdate === null)){
					this.redrawBlockUpdate = update;
				}
			}
		}
		
		blockRedraw(){
			this.redrawBlock = true;
			this.redrawBlockUpdate = null;
		}
		
		restoreRedraw(){
			this.redrawBlock = false;
			this.verticalAlignHeaders();
			this.renderer.rerenderColumns(this.redrawBlockUpdate);
			
		}
		
		//redraw columns
		redraw(force){
			if(Helpers.elVisible(this.element)){
				this.verticalAlignHeaders();
			}
			
			if(force){
				this.table.rowManager.resetScroll();
				this.table.rowManager.reinitialize();
			}
			
			if(!this.confirm("table-redrawing", force)){
				this.layoutRefresh(force);
			}
			
			this.dispatch("table-redraw", force);
			
			this.table.footerManager.redraw();
		}
	}

	//public row object
	class RowComponent {

		constructor (row){
			this._row = row;

			return new Proxy(this, {
				get: function(target, name, receiver) {
					if (typeof target[name] !== "undefined") {
						return target[name];
					}else {
						return target._row.table.componentFunctionBinder.handle("row", target._row, name);
					}
				}
			});
		}

		getData(transform){
			return this._row.getData(transform);
		}

		getElement(){
			return this._row.getElement();
		}

		getCells(){
			var cells = [];

			this._row.getCells().forEach(function(cell){
				cells.push(cell.getComponent());
			});

			return cells;
		}

		getCell(column){
			var cell = this._row.getCell(column);
			return cell ? cell.getComponent() : false;
		}

		getIndex(){
			return this._row.getData("data")[this._row.table.options.index];
		}

		getPosition(){
			return this._row.getPosition();
		}

		watchPosition(callback){
			return this._row.watchPosition(callback);
		}

		delete(){
			return this._row.delete();
		}

		scrollTo(position, ifVisible){
			return this._row.table.rowManager.scrollToRow(this._row, position, ifVisible);
		}

		move(to, after){
			this._row.moveToRow(to, after);
		}

		update(data){
			return this._row.updateData(data);
		}

		normalizeHeight(){
			this._row.normalizeHeight(true);
		}

		_getSelf(){
			return this._row;
		}

		reformat(){
			return this._row.reinitialize();
		}

		getTable(){
			return this._row.table;
		}

		getNextRow(){
			var row = this._row.nextRow();
			return row ? row.getComponent() : row;
		}

		getPrevRow(){
			var row = this._row.prevRow();
			return row ? row.getComponent() : row;
		}
	}

	class Row extends CoreFeature{
		constructor (data, parent, type = "row"){
			super(parent.table);
			
			this.parent = parent;
			this.data = {};
			this.type = type; //type of element
			this.element = false;
			this.modules = {}; //hold module variables;
			this.cells = [];
			this.height = 0; //hold element height
			this.heightStyled = ""; //hold element height pre-styled to improve render efficiency
			this.manualHeight = false; //user has manually set row height
			this.outerHeight = 0; //hold elements outer height
			this.initialized = false; //element has been rendered
			this.heightInitialized = false; //element has resized cells to fit
			this.position = 0; //store position of element in row list
			this.positionWatchers = [];
			
			this.component = null;
			
			this.created = false;
			
			this.setData(data);
		}
		
		create(){
			if(!this.created){
				this.created = true;
				this.generateElement();
			}
		}
		
		createElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-row");
			el.setAttribute("role", "row");
			
			this.element = el;
		}
		
		getElement(){
			this.create();
			return this.element;
		}
		
		detachElement(){
			if (this.element && this.element.parentNode){
				this.element.parentNode.removeChild(this.element);
			}
		}
		
		generateElement(){
			this.createElement();
			this.dispatch("row-init", this);
		}
		
		generateCells(){
			this.cells = this.table.columnManager.generateCells(this);
		}
		
		//functions to setup on first render
		initialize(force, inFragment){
			this.create();
			
			if(!this.initialized || force){
				
				this.deleteCells();
				
				while(this.element.firstChild) this.element.removeChild(this.element.firstChild);
				
				this.dispatch("row-layout-before", this);
				
				this.generateCells();
				
				this.initialized = true;
				
				this.table.columnManager.renderer.renderRowCells(this, inFragment);
				
				if(force){
					this.normalizeHeight();
				}
				
				this.dispatch("row-layout", this);
				
				if(this.table.options.rowFormatter){
					this.table.options.rowFormatter(this.getComponent());
				}
				
				this.dispatch("row-layout-after", this);
			}else {
				this.table.columnManager.renderer.rerenderRowCells(this, inFragment);
			}
		}

		rendered(){
			this.cells.forEach((cell) => {
				cell.cellRendered();
			});
		}
		
		reinitializeHeight(){
			this.heightInitialized = false;
			
			if(this.element && this.element.offsetParent !== null){
				this.normalizeHeight(true);
			}
		}

		deinitialize(){
			this.initialized = false;
		}
		
		deinitializeHeight(){
			this.heightInitialized = false;
		}
		
		reinitialize(children){
			this.initialized = false;
			this.heightInitialized = false;
			
			if(!this.manualHeight){
				this.height = 0;
				this.heightStyled = "";
			}
			
			if(this.element && this.element.offsetParent !== null){
				this.initialize(true);
			}
			
			this.dispatch("row-relayout", this);
		}
		
		//get heights when doing bulk row style calcs in virtual DOM
		calcHeight(force){
			var maxHeight = 0, minHeight  = 0;

			if(this.table.options.rowHeight){
				this.height = this.table.options.rowHeight;
			}else {
				minHeight = this.calcMinHeight();
				maxHeight = this.calcMaxHeight();
				
				if(force){
					this.height = Math.max(maxHeight, minHeight);
				}else {
					this.height = this.manualHeight ? this.height : Math.max(maxHeight, minHeight);
				}
			}
			
			this.heightStyled = this.height ? this.height + "px" : "";
			this.outerHeight = this.element.offsetHeight;
		}

		calcMinHeight(){
			return this.table.options.resizableRows ? this.element.clientHeight : 0;
		}

		calcMaxHeight(){
			var maxHeight = 0;

			this.cells.forEach(function(cell){
				var height = cell.getHeight();

				if(height > maxHeight){
					maxHeight = height;
				}
			});

			return maxHeight;
		}
		
		//set of cells
		setCellHeight(){
			this.cells.forEach(function(cell){
				cell.setHeight();
			});
			
			this.heightInitialized = true;
		}
		
		clearCellHeight(){
			this.cells.forEach(function(cell){
				cell.clearHeight();
			});
		}
		
		//normalize the height of elements in the row
		normalizeHeight(force){
			if(force && !this.table.options.rowHeight){
				this.clearCellHeight();
			}
			
			this.calcHeight(force);
			
			this.setCellHeight();
		}
		
		//set height of rows
		setHeight(height, force){
			if(this.height != height || force){
				
				this.manualHeight = true;
				
				this.height = height;
				this.heightStyled = height ? height + "px" : "";
				
				this.setCellHeight();
				
				// this.outerHeight = this.element.outerHeight();
				this.outerHeight = this.element.offsetHeight;

				if(this.subscribedExternal("rowHeight")){
					this.dispatchExternal("rowHeight", this.getComponent());
				}
			}
		}
		
		//return rows outer height
		getHeight(){
			return this.outerHeight;
		}
		
		//return rows outer Width
		getWidth(){
			return this.element.offsetWidth;
		}
		
		//////////////// Cell Management /////////////////
		deleteCell(cell){
			var index = this.cells.indexOf(cell);
			
			if(index > -1){
				this.cells.splice(index, 1);
			}
		}
		
		//////////////// Data Management /////////////////
		setData(data){
			this.data = this.chain("row-data-init-before", [this, data], undefined, data);
			
			this.dispatch("row-data-init-after", this);
		}
		
		//update the rows data
		updateData(updatedData){
			var visible = this.element && Helpers.elVisible(this.element),
			tempData = {},
			newRowData;
			
			return new Promise((resolve, reject) => {
				
				if(typeof updatedData === "string"){
					updatedData = JSON.parse(updatedData);
				}
				
				this.dispatch("row-data-save-before", this);
				
				if(this.subscribed("row-data-changing")){
					tempData = Object.assign(tempData, this.data);
					tempData = Object.assign(tempData, updatedData);
				}
				
				newRowData = this.chain("row-data-changing", [this, tempData, updatedData], null, updatedData);
				
				//set data
				for (let attrname in newRowData) {
					this.data[attrname] = newRowData[attrname];
				}
				
				this.dispatch("row-data-save-after", this);
				
				//update affected cells only
				for (let attrname in updatedData) {
					
					let columns = this.table.columnManager.getColumnsByFieldRoot(attrname);
					
					columns.forEach((column) => {
						let cell = this.getCell(column.getField());
						
						if(cell){
							let value = column.getFieldValue(newRowData);
							if(cell.getValue() !== value){
								cell.setValueProcessData(value);
								
								if(visible){
									cell.cellRendered();
								}
							}
						}
					});
				}
				
				//Partial reinitialization if visible
				if(visible){
					this.normalizeHeight(true);
					
					if(this.table.options.rowFormatter){
						this.table.options.rowFormatter(this.getComponent());
					}
				}else {
					this.initialized = false;
					this.height = 0;
					this.heightStyled = "";
				}
				
				this.dispatch("row-data-changed", this, visible, updatedData);
				
				//this.reinitialize();
				
				this.dispatchExternal("rowUpdated", this.getComponent());
				
				if(this.subscribedExternal("dataChanged")){
					this.dispatchExternal("dataChanged", this.table.rowManager.getData());
				}
				
				resolve();
			});
		}
		
		getData(transform){
			if(transform){
				return this.chain("row-data-retrieve", [this, transform], null, this.data);
			}
			
			return this.data;
		}
		
		getCell(column){
			var match = false;
			
			column = this.table.columnManager.findColumn(column);
			
			if(!this.initialized && this.cells.length === 0){
				this.generateCells();
			}
			
			match = this.cells.find(function(cell){
				return cell.column === column;
			});
			
			return match;
		}
		
		getCellIndex(findCell){
			return this.cells.findIndex(function(cell){
				return cell === findCell;
			});
		}
		
		findCell(subject){
			return this.cells.find((cell) => {
				return cell.element === subject;
			});
		}
		
		getCells(){
			if(!this.initialized && this.cells.length === 0){
				this.generateCells();
			}
			
			return this.cells;
		}
		
		nextRow(){
			var row = this.table.rowManager.nextDisplayRow(this, true);
			return row || false;
		}
		
		prevRow(){
			var row = this.table.rowManager.prevDisplayRow(this, true);
			return row || false;
		}
		
		moveToRow(to, before){
			var toRow = this.table.rowManager.findRow(to);
			
			if(toRow){
				this.table.rowManager.moveRowActual(this, toRow, !before);
				this.table.rowManager.refreshActiveData("display", false, true);
			}else {
				console.warn("Move Error - No matching row found:", to);
			}
		}
		
		///////////////////// Actions  /////////////////////
		delete(){
			this.dispatch("row-delete", this);
			
			this.deleteActual();
			
			return Promise.resolve();
		}
		
		deleteActual(blockRedraw){
			this.detachModules();
			
			this.table.rowManager.deleteRow(this, blockRedraw);
			
			this.deleteCells();
			
			this.initialized = false;
			this.heightInitialized = false;
			this.element = false;
			
			this.dispatch("row-deleted", this);
		}
		
		detachModules(){
			this.dispatch("row-deleting", this);
		}
		
		deleteCells(){
			var cellCount = this.cells.length;
			
			for(let i = 0; i < cellCount; i++){
				this.cells[0].delete();
			}
		}
		
		wipe(){
			this.detachModules();
			this.deleteCells();
			
			if(this.element){
				while(this.element.firstChild) this.element.removeChild(this.element.firstChild);
				
				if(this.element.parentNode){
					this.element.parentNode.removeChild(this.element);
				}
			}
			
			this.element = false;
			this.modules = {};
		}

		isDisplayed(){
			return this.table.rowManager.getDisplayRows().includes(this);
		}

		getPosition(){
			return this.isDisplayed() ? this.position : false;
		}

		setPosition(position){
			if(position != this.position){
				this.position = position;

				this.positionWatchers.forEach((callback) => {
					callback(this.position);
				});
			}
		}

		watchPosition(callback){
			this.positionWatchers.push(callback);

			callback(this.position);
		}
		
		getGroup(){
			return this.modules.group || false;
		}
		
		//////////////// Object Generation /////////////////
		getComponent(){
			if(!this.component){
				this.component = new RowComponent(this);
			}
			
			return this.component;
		}
	}

	class BasicVertical extends Renderer{
		constructor(table){
			super(table);
			
			this.verticalFillMode = "fill";
			
			this.scrollTop = 0;
			this.scrollLeft = 0;
			
			this.scrollTop = 0;
			this.scrollLeft = 0;
		}
		
		clearRows(){
			var element = this.tableElement;
			
			// element.children.detach();
			while(element.firstChild) element.removeChild(element.firstChild);
			
			element.scrollTop = 0;
			element.scrollLeft = 0;
			
			element.style.minWidth = "";
			element.style.minHeight = "";
			element.style.display = "";
			element.style.visibility = "";
		}
		
		renderRows() {
			var element = this.tableElement,
			onlyGroupHeaders = true,
			tableFrag = document.createDocumentFragment(),
			rows = this.rows();
			
			rows.forEach((row, index) => {
				this.styleRow(row, index);
				row.initialize(false, true);
				
				if (row.type !== "group") {
					onlyGroupHeaders = false;
				}
				
				tableFrag.appendChild(row.getElement());
			});
			
			element.appendChild(tableFrag);
			
			rows.forEach((row) => {
				row.rendered();
				
				if(!row.heightInitialized) {
					row.calcHeight(true);
				}
			});
			
			rows.forEach((row) => {
				if(!row.heightInitialized) {
					row.setCellHeight();
				}
			});
			
			if(onlyGroupHeaders){
				element.style.minWidth = this.table.columnManager.getWidth() + "px";
			}else {
				element.style.minWidth = "";
			}
		}
		
		
		rerenderRows(callback){	
			this.clearRows();
			
			if(callback){
				callback();
			}
			
			this.renderRows();

			if(!this.rows().length){
				this.table.rowManager.tableEmpty();
			}
		}
		
		scrollToRowNearestTop(row){
			var rowTop = Helpers.elOffset(row.getElement()).top;
			
			return !(Math.abs(this.elementVertical.scrollTop - rowTop) > Math.abs(this.elementVertical.scrollTop + this.elementVertical.clientHeight - rowTop));
		}
		
		scrollToRow(row){
			var rowEl = row.getElement();
			
			this.elementVertical.scrollTop = Helpers.elOffset(rowEl).top - Helpers.elOffset(this.elementVertical).top + this.elementVertical.scrollTop;
		}
		
		visibleRows(includingBuffer){
			return this.rows();
		}
		
	}

	class VirtualDomVertical extends Renderer{
		constructor(table){
			super(table);

			this.verticalFillMode = "fill";

			this.scrollTop = 0;
			this.scrollLeft = 0;

			this.vDomRowHeight = 20; //approximation of row heights for padding

			this.vDomTop = 0; //hold position for first rendered row in the virtual DOM
			this.vDomBottom = 0; //hold position for last rendered row in the virtual DOM

			this.vDomScrollPosTop = 0; //last scroll position of the vDom top;
			this.vDomScrollPosBottom = 0; //last scroll position of the vDom bottom;

			this.vDomTopPad = 0; //hold value of padding for top of virtual DOM
			this.vDomBottomPad = 0; //hold value of padding for bottom of virtual DOM

			this.vDomMaxRenderChain = 90; //the maximum number of dom elements that can be rendered in 1 go

			this.vDomWindowBuffer = 0; //window row buffer before removing elements, to smooth scrolling

			this.vDomWindowMinTotalRows = 20; //minimum number of rows to be generated in virtual dom (prevent buffering issues on tables with tall rows)
			this.vDomWindowMinMarginRows = 5; //minimum number of rows to be generated in virtual dom margin

			this.vDomTopNewRows = []; //rows to normalize after appending to optimize render speed
			this.vDomBottomNewRows = []; //rows to normalize after appending to optimize render speed
		}

		//////////////////////////////////////
		///////// Public Functions ///////////
		//////////////////////////////////////

		clearRows(){
			var element = this.tableElement;

			// element.children.detach();
			while(element.firstChild) element.removeChild(element.firstChild);

			element.style.paddingTop = "";
			element.style.paddingBottom = "";
			element.style.minHeight = "";
			element.style.display = "";
			element.style.visibility = "";

			this.elementVertical.scrollTop = 0;
			this.elementVertical.scrollLeft = 0;

			this.scrollTop = 0;
			this.scrollLeft = 0;

			this.vDomTop = 0;
			this.vDomBottom = 0;
			this.vDomTopPad = 0;
			this.vDomBottomPad = 0;
			this.vDomScrollPosTop = 0;
			this.vDomScrollPosBottom = 0;
		}

		renderRows(){
			this._virtualRenderFill();
		}

		rerenderRows(callback){
			var scrollTop = this.elementVertical.scrollTop;
			var topRow = false;
			var topOffset = false;

			var left = this.table.rowManager.scrollLeft;

			var rows = this.rows();

			for(var i = this.vDomTop; i <= this.vDomBottom; i++){

				if(rows[i]){
					var diff = scrollTop - rows[i].getElement().offsetTop;

					if(topOffset === false || Math.abs(diff) < topOffset){
						topOffset = diff;
						topRow = i;
					}else {
						break;
					}
				}
			}

			rows.forEach((row) => {
				row.deinitializeHeight();
			});

			if(callback){
				callback();
			}

			if(this.rows().length){
				this._virtualRenderFill((topRow === false ? this.rows.length - 1 : topRow), true, topOffset || 0);
			}else {
				this.clear();
				this.table.rowManager.tableEmpty();
			}

			this.scrollColumns(left);
		}

		scrollColumns(left){
			this.table.rowManager.scrollHorizontal(left);
		}

		scrollRows(top, dir){
			var topDiff = top - this.vDomScrollPosTop;
			var bottomDiff = top - this.vDomScrollPosBottom;
			var margin = this.vDomWindowBuffer * 2;
			var rows = this.rows();

			this.scrollTop = top;

			if(-topDiff > margin || bottomDiff > margin){
				//if big scroll redraw table;
				var left = this.table.rowManager.scrollLeft;
				this._virtualRenderFill(Math.floor((this.elementVertical.scrollTop / this.elementVertical.scrollHeight) * rows.length));
				this.scrollColumns(left);
			}else {

				if(dir){
					//scrolling up
					if(topDiff < 0){
						this._addTopRow(rows, -topDiff);
					}

					if(bottomDiff < 0){
						//hide bottom row if needed
						if(this.vDomScrollHeight - this.scrollTop > this.vDomWindowBuffer){
							this._removeBottomRow(rows, -bottomDiff);
						}else {
							this.vDomScrollPosBottom = this.scrollTop;
						}
					}
				}else {

					if(bottomDiff >= 0){
						this._addBottomRow(rows, bottomDiff);
					}

					//scrolling down
					if(topDiff >= 0){
						//hide top row if needed
						if(this.scrollTop > this.vDomWindowBuffer){
							this._removeTopRow(rows, topDiff);
						}else {
							this.vDomScrollPosTop = this.scrollTop;
						}
					}
				}
			}
		}

		resize(){
			this.vDomWindowBuffer = this.table.options.renderVerticalBuffer || this.elementVertical.clientHeight;
		}

		scrollToRowNearestTop(row){
			var rowIndex = this.rows().indexOf(row);

			return !(Math.abs(this.vDomTop - rowIndex) > Math.abs(this.vDomBottom - rowIndex));
		}

		scrollToRow(row){
			var index = this.rows().indexOf(row);

			if(index > -1){
				this._virtualRenderFill(index, true);
			}
		}

		visibleRows(includingBuffer){
			var topEdge = this.elementVertical.scrollTop,
			bottomEdge = this.elementVertical.clientHeight + topEdge,
			topFound = false,
			topRow = 0,
			bottomRow = 0,
			rows = this.rows();

			if(includingBuffer){
				topRow = this.vDomTop;
				bottomRow = this.vDomBottom;
			}else {
				for(var i = this.vDomTop; i <= this.vDomBottom; i++){
					if(rows[i]){
						if(!topFound){
							if((topEdge - rows[i].getElement().offsetTop) >= 0){
								topRow = i;
							}else {
								topFound = true;

								if(bottomEdge - rows[i].getElement().offsetTop >= 0){
									bottomRow = i;
								}else {
									break;
								}
							}
						}else {
							if(bottomEdge - rows[i].getElement().offsetTop >= 0){
								bottomRow = i;
							}else {
								break;
							}
						}
					}
				}
			}

			return rows.slice(topRow, bottomRow + 1);
		}

		//////////////////////////////////////
		//////// Internal Rendering //////////
		//////////////////////////////////////

		//full virtual render
		_virtualRenderFill(position, forceMove, offset) {
			var	element = this.tableElement,
			holder = this.elementVertical,
			topPad = 0,
			rowsHeight = 0,
			rowHeight = 0,
			heightOccupied = 0,
			topPadHeight = 0,
			i = 0,
			rows = this.rows(),
			rowsCount = rows.length,
			index = 0,
			row,
			rowFragment,
			renderedRows = [],
			totalRowsRendered = 0,
			rowsToRender = 0,
			fixedHeight = this.table.rowManager.fixedHeight,
			containerHeight = this.elementVertical.clientHeight, 
			avgRowHeight = this.table.options.rowHeight, 
			resized = true;

			position = position || 0;

			offset = offset || 0;

			if(!position){
				this.clear();
			}else {
				while(element.firstChild) element.removeChild(element.firstChild);

				//check if position is too close to bottom of table
				heightOccupied = (rowsCount - position + 1) * this.vDomRowHeight;

				if(heightOccupied < containerHeight){
					position -= Math.ceil((containerHeight - heightOccupied) / this.vDomRowHeight);
					if(position < 0){
						position = 0;
					}
				}

				//calculate initial pad
				topPad = Math.min(Math.max(Math.floor(this.vDomWindowBuffer / this.vDomRowHeight),  this.vDomWindowMinMarginRows), position);
				position -= topPad;
			}

			if(rowsCount && Helpers.elVisible(this.elementVertical)){
				this.vDomTop = position;
				this.vDomBottom = position -1;

				if(fixedHeight || this.table.options.maxHeight) {
					if(avgRowHeight) {
						rowsToRender = (containerHeight / avgRowHeight) + (this.vDomWindowBuffer / avgRowHeight);
					}
					rowsToRender = Math.max(this.vDomWindowMinTotalRows, Math.ceil(rowsToRender));
				}
				else {
					rowsToRender = rowsCount;
				}

				while(((rowsToRender == rowsCount || rowsHeight <= containerHeight + this.vDomWindowBuffer) || totalRowsRendered < this.vDomWindowMinTotalRows) && this.vDomBottom < rowsCount -1) {
					renderedRows = [];
					rowFragment = document.createDocumentFragment();

					i = 0;

					while ((i < rowsToRender) && this.vDomBottom < rowsCount -1) {	
						index = this.vDomBottom + 1,
						row = rows[index];

						this.styleRow(row, index);

						row.initialize(false, true);
						if(!row.heightInitialized && !this.table.options.rowHeight){
							row.clearCellHeight();
						}

						rowFragment.appendChild(row.getElement());
						renderedRows.push(row);
						this.vDomBottom ++;
						i++;
					}

					if(!renderedRows.length){
						break;
					}

					element.appendChild(rowFragment);
					
					// NOTE: The next 3 loops are separate on purpose
					// This is to batch up the dom writes and reads which drastically improves performance 

					renderedRows.forEach((row) => {
						row.rendered();

						if(!row.heightInitialized) {
							row.calcHeight(true);
						}
					});

					renderedRows.forEach((row) => {
						if(!row.heightInitialized) {
							row.setCellHeight();
						}
					});

					renderedRows.forEach((row) => {
						rowHeight = row.getHeight();
						
						if(totalRowsRendered < topPad){
							topPadHeight += rowHeight;
						}else {
							rowsHeight += rowHeight;
						}

						if(rowHeight > this.vDomWindowBuffer){
							this.vDomWindowBuffer = rowHeight * 2;
						}
						totalRowsRendered++;
					});

					resized = this.table.rowManager.adjustTableSize();
					containerHeight = this.elementVertical.clientHeight;
					if(resized && (fixedHeight || this.table.options.maxHeight))
					{
						avgRowHeight = rowsHeight / totalRowsRendered;
						rowsToRender = Math.max(this.vDomWindowMinTotalRows, Math.ceil((containerHeight / avgRowHeight) + (this.vDomWindowBuffer / avgRowHeight)));
					}
				}

				if(!position){
					this.vDomTopPad = 0;
					//adjust row height to match average of rendered elements
					this.vDomRowHeight = Math.floor((rowsHeight + topPadHeight) / totalRowsRendered);
					this.vDomBottomPad = this.vDomRowHeight * (rowsCount - this.vDomBottom -1);

					this.vDomScrollHeight = topPadHeight + rowsHeight + this.vDomBottomPad - containerHeight;
				}else {
					this.vDomTopPad = !forceMove ? this.scrollTop - topPadHeight : (this.vDomRowHeight * this.vDomTop) + offset;
					this.vDomBottomPad = this.vDomBottom == rowsCount-1 ? 0 : Math.max(this.vDomScrollHeight - this.vDomTopPad - rowsHeight - topPadHeight, 0);
				}
				
				element.style.paddingTop = this.vDomTopPad+"px";
				element.style.paddingBottom = this.vDomBottomPad+"px";

				if(forceMove){
					this.scrollTop = this.vDomTopPad + (topPadHeight) + offset - (this.elementVertical.scrollWidth > this.elementVertical.clientWidth ? this.elementVertical.offsetHeight - containerHeight : 0);
				}

				this.scrollTop = Math.min(this.scrollTop, this.elementVertical.scrollHeight - containerHeight);

				//adjust for horizontal scrollbar if present (and not at top of table)
				if(this.elementVertical.scrollWidth > this.elementVertical.clientWidth && forceMove){
					this.scrollTop += this.elementVertical.offsetHeight - containerHeight;
				}

				this.vDomScrollPosTop = this.scrollTop;
				this.vDomScrollPosBottom = this.scrollTop;

				holder.scrollTop = this.scrollTop;

				this.dispatch("render-virtual-fill");
			}
		}

		_addTopRow(rows, fillableSpace){
			var table = this.tableElement,
			addedRows = [],
			paddingAdjust = 0,
			index = this.vDomTop -1,
			i = 0,
			working = true;

			while(working){
				if(this.vDomTop){
					let row = rows[index],
					rowHeight, initialized;

					if(row && i < this.vDomMaxRenderChain){
						rowHeight = row.getHeight() || this.vDomRowHeight;
						initialized = row.initialized;

						if(fillableSpace >= rowHeight){

							this.styleRow(row, index);
							table.insertBefore(row.getElement(), table.firstChild);

							if(!row.initialized || !row.heightInitialized){
								addedRows.push(row);
							}

							row.initialize();

							if(!initialized){
								rowHeight = row.getElement().offsetHeight;

								if(rowHeight > this.vDomWindowBuffer){
									this.vDomWindowBuffer = rowHeight * 2;
								}
							}

							fillableSpace -= rowHeight;
							paddingAdjust += rowHeight;

							this.vDomTop--;
							index--;
							i++;

						}else {
							working = false;
						}

					}else {
						working = false;
					}

				}else {
					working = false;
				}
			}

			for (let row of addedRows){
				row.clearCellHeight();
			}

			this._quickNormalizeRowHeight(addedRows);

			if(paddingAdjust){
				this.vDomTopPad -= paddingAdjust;

				if(this.vDomTopPad < 0){
					this.vDomTopPad = index * this.vDomRowHeight;
				}

				if(index < 1){
					this.vDomTopPad = 0;
				}

				table.style.paddingTop = this.vDomTopPad + "px";
				this.vDomScrollPosTop -= paddingAdjust;
			}
		}

		_removeTopRow(rows, fillableSpace){
			var removableRows = [],
			paddingAdjust = 0,
			i = 0,
			working = true;

			while(working){
				let row = rows[this.vDomTop],
				rowHeight;

				if(row && i < this.vDomMaxRenderChain){
					rowHeight = row.getHeight() || this.vDomRowHeight;

					if(fillableSpace >= rowHeight){
						this.vDomTop++;

						fillableSpace -= rowHeight;
						paddingAdjust += rowHeight;

						removableRows.push(row);
						i++;
					}else {
						working = false;
					}
				}else {
					working = false;
				}
			}

			for (let row of removableRows){
				let rowEl = row.getElement();

				if(rowEl.parentNode){
					rowEl.parentNode.removeChild(rowEl);
				}
			}

			if(paddingAdjust){
				this.vDomTopPad += paddingAdjust;
				this.tableElement.style.paddingTop = this.vDomTopPad + "px";
				this.vDomScrollPosTop += this.vDomTop ? paddingAdjust : paddingAdjust + this.vDomWindowBuffer;
			}
		}

		_addBottomRow(rows, fillableSpace){
			var table = this.tableElement,
			addedRows = [],
			paddingAdjust = 0,
			index = this.vDomBottom + 1,
			i = 0,
			working = true;

			while(working){
				let row = rows[index],
				rowHeight, initialized;

				if(row && i < this.vDomMaxRenderChain){
					rowHeight = row.getHeight() || this.vDomRowHeight;
					initialized = row.initialized;

					if(fillableSpace >= rowHeight){

						this.styleRow(row, index);
						table.appendChild(row.getElement());

						if(!row.initialized || !row.heightInitialized){
							addedRows.push(row);
						}

						row.initialize();

						if(!initialized){
							rowHeight = row.getElement().offsetHeight;

							if(rowHeight > this.vDomWindowBuffer){
								this.vDomWindowBuffer = rowHeight * 2;
							}
						}

						fillableSpace -= rowHeight;
						paddingAdjust += rowHeight;

						this.vDomBottom++;
						index++;
						i++;
					}else {
						working = false;
					}
				}else {
					working = false;
				}
			}

			for (let row of addedRows){
				row.clearCellHeight();
			}

			this._quickNormalizeRowHeight(addedRows);

			if(paddingAdjust){
				this.vDomBottomPad -= paddingAdjust;

				if(this.vDomBottomPad < 0 || index == rows.length -1){
					this.vDomBottomPad = 0;
				}

				table.style.paddingBottom = this.vDomBottomPad + "px";
				this.vDomScrollPosBottom += paddingAdjust;
			}
		}

		_removeBottomRow(rows, fillableSpace){
			var removableRows = [],
			paddingAdjust = 0,
			i = 0,
			working = true;

			while(working){
				let row = rows[this.vDomBottom],
				rowHeight;

				if(row && i < this.vDomMaxRenderChain){
					rowHeight = row.getHeight() || this.vDomRowHeight;

					if(fillableSpace >= rowHeight){
						this.vDomBottom --;

						fillableSpace -= rowHeight;
						paddingAdjust += rowHeight;

						removableRows.push(row);
						i++;
					}else {
						working = false;
					}
				}else {
					working = false;
				}
			}

			for (let row of removableRows){
				let rowEl = row.getElement();

				if(rowEl.parentNode){
					rowEl.parentNode.removeChild(rowEl);
				}
			}

			if(paddingAdjust){
				this.vDomBottomPad += paddingAdjust;

				if(this.vDomBottomPad < 0){
					this.vDomBottomPad = 0;
				}

				this.tableElement.style.paddingBottom = this.vDomBottomPad + "px";
				this.vDomScrollPosBottom -= paddingAdjust;
			}
		}

		_quickNormalizeRowHeight(rows){
			for(let row of rows){
				row.calcHeight();
			}

			for(let row of rows){
				row.setCellHeight();
			}
		}
	}

	class RowManager extends CoreFeature{
		
		constructor(table){
			super(table);
			
			this.element = this.createHolderElement(); //containing element
			this.tableElement = this.createTableElement(); //table element
			this.heightFixer = this.createTableElement(); //table element
			this.placeholder = null; //placeholder element
			this.placeholderContents = null; //placeholder element
			
			this.firstRender = false; //handle first render
			this.renderMode = "virtual"; //current rendering mode
			this.fixedHeight = false; //current rendering mode
			
			this.rows = []; //hold row data objects
			this.activeRowsPipeline = []; //hold calculation of active rows
			this.activeRows = []; //rows currently available to on display in the table
			this.activeRowsCount = 0; //count of active rows
			
			this.displayRows = []; //rows currently on display in the table
			this.displayRowsCount = 0; //count of display rows
			
			this.scrollTop = 0;
			this.scrollLeft = 0;
			
			this.redrawBlock = false; //prevent redraws to allow multiple data manipulations before continuing
			this.redrawBlockRestoreConfig = false; //store latest redraw function calls for when redraw is needed
			this.redrawBlockRenderInPosition = false; //store latest redraw function calls for when redraw is needed
			
			this.dataPipeline = []; //hold data pipeline tasks
			this.displayPipeline = []; //hold data display pipeline tasks
			
			this.scrollbarWidth = 0;
			
			this.renderer = null;
		}
		
		//////////////// Setup Functions /////////////////
		
		createHolderElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-tableholder");
			el.setAttribute("tabindex", 0);
			// el.setAttribute("role", "rowgroup");
			
			return el;
		}
		
		createTableElement (){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-table");
			el.setAttribute("role", "rowgroup");
			
			return el;
		}
		
		initializePlaceholder(){
			var placeholder = this.table.options.placeholder;
			
			if(typeof placeholder === "function"){
				placeholder = placeholder.call(this.table);
			}
			
			placeholder = this.chain("placeholder", [placeholder], placeholder, placeholder) || placeholder;
			
			//configure placeholder element
			if(placeholder){	
				let el = document.createElement("div");
				el.classList.add("tabulator-placeholder");
				
				if(typeof placeholder == "string"){
					let contents = document.createElement("div");
					contents.classList.add("tabulator-placeholder-contents");
					contents.innerHTML = placeholder;
					
					el.appendChild(contents);
					
					this.placeholderContents = contents;
					
				}else if(typeof HTMLElement !== "undefined" && placeholder instanceof HTMLElement){
					
					el.appendChild(placeholder);
					this.placeholderContents = placeholder;
				}else {
					console.warn("Invalid placeholder provided, must be string or HTML Element", placeholder);
					
					this.el = null;
				}
				
				this.placeholder = el;
			}
		}
		
		//return containing element
		getElement(){
			return this.element;
		}
		
		//return table element
		getTableElement(){
			return this.tableElement;
		}
		
		initialize(){
			this.initializePlaceholder();
			this.initializeRenderer();
			
			//initialize manager
			this.element.appendChild(this.tableElement);
			
			this.firstRender = true;
			
			//scroll header along with table body
			this.element.addEventListener("scroll", () => {
				var left = this.element.scrollLeft,
				leftDir = this.scrollLeft > left,
				top = this.element.scrollTop,
				topDir = this.scrollTop > top;
				
				//handle horizontal scrolling
				if(this.scrollLeft != left){
					this.scrollLeft = left;
					
					this.dispatch("scroll-horizontal", left, leftDir);
					this.dispatchExternal("scrollHorizontal", left, leftDir);
					
					this._positionPlaceholder();
				}
				
				//handle vertical scrolling
				if(this.scrollTop != top){
					this.scrollTop = top;
					
					this.renderer.scrollRows(top, topDir);
					
					this.dispatch("scroll-vertical", top, topDir);
					this.dispatchExternal("scrollVertical", top, topDir);
				}
			});
		}
		
		////////////////// Row Manipulation //////////////////
		findRow(subject){
			if(typeof subject == "object"){
				if(subject instanceof Row){
					//subject is row element
					return subject;
				}else if(subject instanceof RowComponent){
					//subject is public row component
					return subject._getSelf() || false;
				}else if(typeof HTMLElement !== "undefined" && subject instanceof HTMLElement){
					//subject is a HTML element of the row
					let match = this.rows.find((row) => {
						return row.getElement() === subject;
					});
					
					return match || false;
				}else if(subject === null){
					return false;
				}
			}else if(typeof subject == "undefined"){
				return false;
			}else {
				//subject should be treated as the index of the row
				let match = this.rows.find((row) => {
					return row.data[this.table.options.index] == subject;
				});
				
				return match || false;
			}
			
			//catch all for any other type of input
			return false;
		}
		
		getRowFromDataObject(data){
			var match = this.rows.find((row) => {
				return row.data === data;
			});
			
			return match || false;
		}
		
		getRowFromPosition(position){
			return this.getDisplayRows().find((row) => {
				return row.type === "row" && row.getPosition() === position && row.isDisplayed();
			});
		}
		
		scrollToRow(row, position, ifVisible){
			return this.renderer.scrollToRowPosition(row, position, ifVisible);
		}
		
		////////////////// Data Handling //////////////////
		setData(data, renderInPosition, columnsChanged){
			return new Promise((resolve, reject)=>{
				if(renderInPosition && this.getDisplayRows().length){
					if(this.table.options.pagination){
						this._setDataActual(data, true);
					}else {
						this.reRenderInPosition(() => {
							this._setDataActual(data);
						});
					}
				}else {
					if(this.table.options.autoColumns && columnsChanged && this.table.initialized){
						this.table.columnManager.generateColumnsFromRowData(data);
					}
					this.resetScroll();
					
					this._setDataActual(data);
				}
				
				resolve();
			});
		}
		
		_setDataActual(data, renderInPosition){
			this.dispatchExternal("dataProcessing", data);
			
			this._wipeElements();
			
			if(Array.isArray(data)){
				this.dispatch("data-processing", data);
				
				data.forEach((def, i) => {
					if(def && typeof def === "object"){
						var row = new Row(def, this);
						this.rows.push(row);
					}else {
						console.warn("Data Loading Warning - Invalid row data detected and ignored, expecting object but received:", def);
					}
				});
				
				this.refreshActiveData(false, false, renderInPosition);
				
				this.dispatch("data-processed", data);
				this.dispatchExternal("dataProcessed", data);
			}else {
				console.error("Data Loading Error - Unable to process data due to invalid data type \nExpecting: array \nReceived: ", typeof data, "\nData:     ", data);
			}
		}
		
		_wipeElements(){
			this.dispatch("rows-wipe");
			
			this.destroy();
			
			this.adjustTableSize();
			
			this.dispatch("rows-wiped");
		}
		
		destroy(){
			this.rows.forEach((row) => {
				row.wipe();
			});
			
			this.rows = [];
			this.activeRows = [];
			this.activeRowsPipeline = [];
			this.activeRowsCount = 0;
			this.displayRows = [];
			this.displayRowsCount = 0;
		}
		
		deleteRow(row, blockRedraw){
			var allIndex = this.rows.indexOf(row),
			activeIndex = this.activeRows.indexOf(row);
			
			if(activeIndex > -1){
				this.activeRows.splice(activeIndex, 1);
			}
			
			if(allIndex > -1){
				this.rows.splice(allIndex, 1);
			}
			
			this.setActiveRows(this.activeRows);
			
			this.displayRowIterator((rows) => {
				var displayIndex = rows.indexOf(row);
				
				if(displayIndex > -1){
					rows.splice(displayIndex, 1);
				}
			});
			
			if(!blockRedraw){
				this.reRenderInPosition();
			}
			
			this.regenerateRowPositions();
			
			this.dispatchExternal("rowDeleted", row.getComponent());
			
			if(!this.displayRowsCount){
				this.tableEmpty();
			}
			
			if(this.subscribedExternal("dataChanged")){
				this.dispatchExternal("dataChanged", this.getData());
			}
		}
		
		addRow(data, pos, index, blockRedraw){
			var row = this.addRowActual(data, pos, index, blockRedraw);
			return row;
		}
		
		//add multiple rows
		addRows(data, pos, index, refreshDisplayOnly){
			var rows = [];
			
			return new Promise((resolve, reject) => {
				pos = this.findAddRowPos(pos);
				
				if(!Array.isArray(data)){
					data = [data];
				}
				
				if((typeof index == "undefined" && pos) || (typeof index !== "undefined" && !pos)){
					data.reverse();
				}
				
				data.forEach((item, i) => {
					var row = this.addRow(item, pos, index, true);
					rows.push(row);
					this.dispatch("row-added", row, item, pos, index);
				});
				
				this.refreshActiveData(refreshDisplayOnly ? "displayPipeline" : false, false, true);
				
				this.regenerateRowPositions();
				
				if(this.displayRowsCount){
					this._clearPlaceholder();
				}
				
				resolve(rows);
			});
		}
		
		findAddRowPos(pos){
			if(typeof pos === "undefined"){
				pos = this.table.options.addRowPos;
			}
			
			if(pos === "pos"){
				pos = true;
			}
			
			if(pos === "bottom"){
				pos = false;
			}
			
			return pos;
		}
		
		addRowActual(data, pos, index, blockRedraw){
			var row = data instanceof Row ? data : new Row(data || {}, this),
			top = this.findAddRowPos(pos),
			allIndex = -1,
			activeIndex, chainResult;
			
			if(!index){
				chainResult = this.chain("row-adding-position", [row, top], null, {index, top});
				
				index = chainResult.index;
				top = chainResult.top;
			}
			
			if(typeof index !== "undefined"){
				index = this.findRow(index);
			}
			
			index = this.chain("row-adding-index", [row, index, top], null, index);
			
			if(index){
				allIndex = this.rows.indexOf(index);
			}
			
			if(index && allIndex > -1){
				activeIndex = this.activeRows.indexOf(index);
				
				this.displayRowIterator(function(rows){
					var displayIndex = rows.indexOf(index);
					
					if(displayIndex > -1){
						rows.splice((top ? displayIndex : displayIndex + 1), 0, row);
					}
				});
				
				if(activeIndex > -1){
					this.activeRows.splice((top ? activeIndex : activeIndex + 1), 0, row);
				}
				
				this.rows.splice((top ? allIndex : allIndex + 1), 0, row);
				
			}else {
				
				if(top){
					
					this.displayRowIterator(function(rows){
						rows.unshift(row);
					});
					
					this.activeRows.unshift(row);
					this.rows.unshift(row);
				}else {
					this.displayRowIterator(function(rows){
						rows.push(row);
					});
					
					this.activeRows.push(row);
					this.rows.push(row);
				}
			}
			
			this.setActiveRows(this.activeRows);
			
			this.dispatchExternal("rowAdded", row.getComponent());
			
			if(this.subscribedExternal("dataChanged")){
				this.dispatchExternal("dataChanged", this.table.rowManager.getData());
			}
			
			if(!blockRedraw){
				this.reRenderInPosition();
			}
			
			return row;
		}
		
		moveRow(from, to, after){
			this.dispatch("row-move", from, to, after);
			
			this.moveRowActual(from, to, after);
			
			this.regenerateRowPositions();
			
			this.dispatch("row-moved", from, to, after);
			this.dispatchExternal("rowMoved", from.getComponent());
		}
		
		moveRowActual(from, to, after){
			this.moveRowInArray(this.rows, from, to, after);
			this.moveRowInArray(this.activeRows, from, to, after);
			
			this.displayRowIterator((rows) => {
				this.moveRowInArray(rows, from, to, after);
			});
			
			this.dispatch("row-moving", from, to, after);
		}
		
		moveRowInArray(rows, from, to, after){
			var	fromIndex, toIndex, start, end;
			
			if(from !== to){
				
				fromIndex = rows.indexOf(from);
				
				if (fromIndex > -1) {
					
					rows.splice(fromIndex, 1);
					
					toIndex = rows.indexOf(to);
					
					if (toIndex > -1) {
						
						if(after){
							rows.splice(toIndex+1, 0, from);
						}else {
							rows.splice(toIndex, 0, from);
						}
						
					}else {
						rows.splice(fromIndex, 0, from);
					}
				}
				
				//restyle rows
				if(rows === this.getDisplayRows()){
					
					start = fromIndex < toIndex ? fromIndex : toIndex;
					end = toIndex > fromIndex ? toIndex : fromIndex +1;
					
					for(let i = start; i <= end; i++){
						if(rows[i]){
							this.styleRow(rows[i], i);
						}
					}
				}
			}
		}
		
		clearData(){
			this.setData([]);
		}
		
		getRowIndex(row){
			return this.findRowIndex(row, this.rows);
		}
		
		getDisplayRowIndex(row){
			var index = this.getDisplayRows().indexOf(row);
			return index > -1 ? index : false;
		}
		
		nextDisplayRow(row, rowOnly){
			var index = this.getDisplayRowIndex(row),
			nextRow = false;
			
			
			if(index !== false && index < this.displayRowsCount -1){
				nextRow = this.getDisplayRows()[index+1];
			}
			
			if(nextRow && (!(nextRow instanceof Row) || nextRow.type != "row")){
				return this.nextDisplayRow(nextRow, rowOnly);
			}
			
			return nextRow;
		}
		
		prevDisplayRow(row, rowOnly){
			var index = this.getDisplayRowIndex(row),
			prevRow = false;
			
			if(index){
				prevRow = this.getDisplayRows()[index-1];
			}
			
			if(rowOnly && prevRow && (!(prevRow instanceof Row) || prevRow.type != "row")){
				return this.prevDisplayRow(prevRow, rowOnly);
			}
			
			return prevRow;
		}
		
		findRowIndex(row, list){
			var rowIndex;
			
			row = this.findRow(row);
			
			if(row){
				rowIndex = list.indexOf(row);
				
				if(rowIndex > -1){
					return rowIndex;
				}
			}
			
			return false;
		}
		
		getData(active, transform){
			var output = [],
			rows = this.getRows(active);
			
			rows.forEach(function(row){
				if(row.type == "row"){
					output.push(row.getData(transform || "data"));
				}
			});
			
			return output;
		}
		
		getComponents(active){
			var	output = [],
			rows = this.getRows(active);
			
			rows.forEach(function(row){
				output.push(row.getComponent());
			});
			
			return output;
		}
		
		getDataCount(active){
			var rows = this.getRows(active);
			
			return rows.length;
		}
		
		scrollHorizontal(left){
			this.scrollLeft = left;
			this.element.scrollLeft = left;
			
			this.dispatch("scroll-horizontal", left);
		}
		
		registerDataPipelineHandler(handler, priority){
			if(typeof priority !== "undefined"){
				this.dataPipeline.push({handler, priority});
				this.dataPipeline.sort((a, b) => {
					return a.priority - b.priority;
				});
			}else {
				console.error("Data pipeline handlers must have a priority in order to be registered");
			}
		}
		
		registerDisplayPipelineHandler(handler, priority){
			if(typeof priority !== "undefined"){
				this.displayPipeline.push({handler, priority});
				this.displayPipeline.sort((a, b) => {
					return a.priority - b.priority;
				});
			}else {
				console.error("Display pipeline handlers must have a priority in order to be registered");
			}
		}
		
		//set active data set
		refreshActiveData(handler, skipStage, renderInPosition){
			var table = this.table,
			stage = "",
			index = 0,
			cascadeOrder = ["all", "dataPipeline", "display", "displayPipeline", "end"];
			
			if(!this.table.destroyed){
				if(typeof handler === "function"){
					index = this.dataPipeline.findIndex((item) => {
						return item.handler === handler;
					});
					
					if(index > -1){
						stage = "dataPipeline";
						
						if(skipStage){
							if(index == this.dataPipeline.length - 1){
								stage = "display";
							}else {
								index++;
							}
						}
					}else {
						index = this.displayPipeline.findIndex((item) => {
							return item.handler === handler;
						});
						
						if(index > -1){
							stage = "displayPipeline";
							
							if(skipStage){
								if(index == this.displayPipeline.length - 1){
									stage = "end";
								}else {
									index++;
								}
							}
						}else {
							console.error("Unable to refresh data, invalid handler provided", handler);
							return;
						}
					}
				}else {
					stage = handler || "all";
					index = 0;
				}
				
				if(this.redrawBlock){
					if(!this.redrawBlockRestoreConfig || (this.redrawBlockRestoreConfig && ((this.redrawBlockRestoreConfig.stage === stage && index < this.redrawBlockRestoreConfig.index) || (cascadeOrder.indexOf(stage) < cascadeOrder.indexOf(this.redrawBlockRestoreConfig.stage))))){
						this.redrawBlockRestoreConfig = {
							handler: handler,
							skipStage: skipStage,
							renderInPosition: renderInPosition,
							stage:stage,
							index:index,
						};
					}
					
					return;
				}else {
					if(Helpers.elVisible(this.element)){
						if(renderInPosition){
							this.reRenderInPosition(this.refreshPipelines.bind(this, handler, stage, index, renderInPosition));
						}else {
							this.refreshPipelines(handler, stage, index, renderInPosition);
							
							if(!handler){
								this.table.columnManager.renderer.renderColumns();
							}
							
							this.renderTable();
							
							if(table.options.layoutColumnsOnNewData){
								this.table.columnManager.redraw(true);
							}
						}
					}else {
						this.refreshPipelines(handler, stage, index, renderInPosition);
					}
					
					this.dispatch("data-refreshed");
				}
			}
		}
		
		refreshPipelines(handler, stage, index, renderInPosition){
			this.dispatch("data-refreshing");
			
			if(!handler || !this.activeRowsPipeline[0]){
				this.activeRowsPipeline[0] = this.rows.slice(0);
			}
			
			//cascade through data refresh stages
			switch(stage){
				case "all":
				//handle case where all data needs refreshing
				
				case "dataPipeline":
					for(let i = index; i < this.dataPipeline.length; i++){
						let result = this.dataPipeline[i].handler(this.activeRowsPipeline[i].slice(0));
					
						this.activeRowsPipeline[i + 1] = result || this.activeRowsPipeline[i].slice(0);
					}
				
					this.setActiveRows(this.activeRowsPipeline[this.dataPipeline.length]);
				
				case "display":
					index = 0;
					this.resetDisplayRows();
				
				case "displayPipeline":
					for(let i = index; i < this.displayPipeline.length; i++){
						let result = this.displayPipeline[i].handler((i ? this.getDisplayRows(i - 1) : this.activeRows).slice(0), renderInPosition);
					
						this.setDisplayRows(result || this.getDisplayRows(i - 1).slice(0), i);
					}
				
				case "end":
				//case to handle scenario when trying to skip past end stage
					this.regenerateRowPositions();
			}
			
			if(this.getDisplayRows().length){
				this._clearPlaceholder();
			}
		}
		
		//regenerate row positions
		regenerateRowPositions(){
			var rows = this.getDisplayRows();
			var index = 1;
			
			rows.forEach((row) => {
				if (row.type === "row"){
					row.setPosition(index);
					index++;
				}
			});
		}
		
		setActiveRows(activeRows){
			this.activeRows = this.activeRows = Object.assign([], activeRows);
			this.activeRowsCount = this.activeRows.length;
		}
		
		//reset display rows array
		resetDisplayRows(){
			this.displayRows = [];
			
			this.displayRows.push(this.activeRows.slice(0));
			
			this.displayRowsCount = this.displayRows[0].length;
		}
		
		//set display row pipeline data
		setDisplayRows(displayRows, index){
			this.displayRows[index] = displayRows;
			
			if(index == this.displayRows.length -1){
				this.displayRowsCount = this.displayRows[this.displayRows.length -1].length;
			}
		}
		
		getDisplayRows(index){
			if(typeof index == "undefined"){
				return this.displayRows.length ? this.displayRows[this.displayRows.length -1] : [];
			}else {
				return this.displayRows[index] || [];
			}
		}
		
		getVisibleRows(chain, viewable){
			var rows =  Object.assign([], this.renderer.visibleRows(!viewable));
			
			if(chain){
				rows = this.chain("rows-visible", [viewable], rows, rows);
			}
			
			return rows;
		}
		
		//repeat action across display rows
		displayRowIterator(callback){
			this.activeRowsPipeline.forEach(callback);
			this.displayRows.forEach(callback);
			
			this.displayRowsCount = this.displayRows[this.displayRows.length -1].length;
		}
		
		//return only actual rows (not group headers etc)
		getRows(type){
			var rows = [];
			
			switch(type){
				case "active":
					rows = this.activeRows;
					break;
				
				case "display":
					rows = this.table.rowManager.getDisplayRows();
					break;
				
				case "visible":
					rows = this.getVisibleRows(false, true);
					break;
				
				default:
					rows = this.chain("rows-retrieve", type, null, this.rows) || this.rows;
			}
			
			return rows;
		}
		
		///////////////// Table Rendering /////////////////
		//trigger rerender of table in current position
		reRenderInPosition(callback){
			if(this.redrawBlock){
				if(callback){
					callback();
				}else {
					this.redrawBlockRenderInPosition = true;
				}
			}else {
				this.dispatchExternal("renderStarted");
				
				this.renderer.rerenderRows(callback);
				
				if(!this.fixedHeight){
					this.adjustTableSize();
				}
				
				this.scrollBarCheck();
				
				this.dispatchExternal("renderComplete");
			}
		}
		
		scrollBarCheck(){
			var scrollbarWidth = 0;
			
			//adjust for vertical scrollbar moving table when present
			if(this.element.scrollHeight > this.element.clientHeight){
				scrollbarWidth = this.element.offsetWidth - this.element.clientWidth;
			}
			
			if(scrollbarWidth !== this.scrollbarWidth){
				this.scrollbarWidth = scrollbarWidth;
				this.dispatch("scrollbar-vertical", scrollbarWidth);
			}
		}
		
		initializeRenderer(){
			var renderClass;
			
			var renderers = {
				"virtual": VirtualDomVertical,
				"basic": BasicVertical,
			};
			
			if(typeof this.table.options.renderVertical === "string"){
				renderClass = renderers[this.table.options.renderVertical];
			}else {
				renderClass = this.table.options.renderVertical;
			}
			
			if(renderClass){
				this.renderMode = this.table.options.renderVertical;
				
				this.renderer = new renderClass(this.table, this.element, this.tableElement);
				this.renderer.initialize();
				
				if((this.table.element.clientHeight || this.table.options.height) && !(this.table.options.minHeight && this.table.options.maxHeight)){
					this.fixedHeight = true;
				}else {
					this.fixedHeight = false;
				}
			}else {
				console.error("Unable to find matching renderer:", this.table.options.renderVertical);
			}
		}
		
		getRenderMode(){
			return this.renderMode;
		}
		
		renderTable(){
			this.dispatchExternal("renderStarted");
			
			this.element.scrollTop = 0;
			
			this._clearTable();
			
			if(this.displayRowsCount){
				this.renderer.renderRows();
				
				if(this.firstRender){
					this.firstRender = false;
					
					if(!this.fixedHeight){
						this.adjustTableSize();
					}
					
					this.layoutRefresh(true);
				}
			}else {
				this.renderEmptyScroll();
			}
			
			if(!this.fixedHeight){
				this.adjustTableSize();
			}
			
			this.dispatch("table-layout");
			
			if(!this.displayRowsCount){
				this._showPlaceholder();
			}
			
			this.scrollBarCheck();
			
			this.dispatchExternal("renderComplete");
		}
		
		//show scrollbars on empty table div
		renderEmptyScroll(){
			if(this.placeholder){
				this.tableElement.style.display = "none";
			}else {
				this.tableElement.style.minWidth = this.table.columnManager.getWidth() + "px";
				// this.tableElement.style.minHeight = "1px";
				// this.tableElement.style.visibility = "hidden";
			}
		}
		
		_clearTable(){	
			this._clearPlaceholder();
			
			this.scrollTop = 0;
			this.scrollLeft = 0;
			
			this.renderer.clearRows();
		}
		
		tableEmpty(){
			this.renderEmptyScroll();
			this._showPlaceholder();
		}

		checkPlaceholder(){
			if(this.displayRowsCount){
				this._clearPlaceholder();
			}else {
				this.tableEmpty();
			}
		}
		
		_showPlaceholder(){
			if(this.placeholder){
				if(this.placeholder && this.placeholder.parentNode){
					this.placeholder.parentNode.removeChild(this.placeholder);
				}
				
				this.initializePlaceholder();
				
				this.placeholder.setAttribute("tabulator-render-mode", this.renderMode);
				
				this.getElement().appendChild(this.placeholder);
				this._positionPlaceholder();

				this.adjustTableSize();
			}
		}
		
		_clearPlaceholder(){
			if(this.placeholder && this.placeholder.parentNode){
				this.placeholder.parentNode.removeChild(this.placeholder);
			}
			
			// clear empty table placeholder min
			this.tableElement.style.minWidth = "";
			this.tableElement.style.display = "";
		}
		
		_positionPlaceholder(){
			if(this.placeholder && this.placeholder.parentNode){
				this.placeholder.style.width = this.table.columnManager.getWidth() + "px";
				this.placeholderContents.style.width = this.table.rowManager.element.clientWidth + "px";
				this.placeholderContents.style.marginLeft = this.scrollLeft + "px";
			}
		}
		
		styleRow(row, index){
			var rowEl = row.getElement();
			
			if(index % 2){
				rowEl.classList.add("tabulator-row-even");
				rowEl.classList.remove("tabulator-row-odd");
			}else {
				rowEl.classList.add("tabulator-row-odd");
				rowEl.classList.remove("tabulator-row-even");
			}
		}
		
		//normalize height of active rows
		normalizeHeight(force){
			this.activeRows.forEach(function(row){
				row.normalizeHeight(force);
			});
		}
		
		//adjust the height of the table holder to fit in the Tabulator element
		adjustTableSize(){
			let initialHeight = this.element.clientHeight, minHeight;
			let resized = false;
			
			if(this.renderer.verticalFillMode === "fill"){
				let otherHeight =  Math.floor(this.table.columnManager.getElement().getBoundingClientRect().height + (this.table.footerManager && this.table.footerManager.active && !this.table.footerManager.external ? this.table.footerManager.getElement().getBoundingClientRect().height : 0));
				
				if(this.fixedHeight){
					minHeight = isNaN(this.table.options.minHeight) ? this.table.options.minHeight : this.table.options.minHeight + "px";
					
					const height = "calc(100% - " + otherHeight + "px)";
					this.element.style.minHeight = minHeight || "calc(100% - " + otherHeight + "px)";
					this.element.style.height = height;
					this.element.style.maxHeight = height;
				} else {
					this.element.style.height = "";
					this.element.style.height =
					this.table.element.clientHeight - otherHeight + "px";
					this.element.scrollTop = this.scrollTop;
				}
				
				this.renderer.resize();
				
				//check if the table has changed size when dealing with variable height tables
				if(!this.fixedHeight && initialHeight != this.element.clientHeight){
					resized = true;
					if(this.subscribed("table-resize")){
						this.dispatch("table-resize");
					}else {
						this.redraw();
					}
				}
				
				this.scrollBarCheck();
			}
			
			this._positionPlaceholder();
			return resized;
		}
		
		//reinitialize all rows
		reinitialize(){
			this.rows.forEach(function(row){
				row.reinitialize(true);
			});
		}
		
		//prevent table from being redrawn
		blockRedraw (){
			this.redrawBlock = true;
			this.redrawBlockRestoreConfig = false;
		}
		
		//restore table redrawing
		restoreRedraw (){
			this.redrawBlock = false;
			
			if(this.redrawBlockRestoreConfig){
				this.refreshActiveData(this.redrawBlockRestoreConfig.handler, this.redrawBlockRestoreConfig.skipStage, this.redrawBlockRestoreConfig.renderInPosition);
				
				this.redrawBlockRestoreConfig = false;
			}else {
				if(this.redrawBlockRenderInPosition){
					this.reRenderInPosition();
				}
			}
			
			this.redrawBlockRenderInPosition = false;
		}
		
		//redraw table
		redraw (force){
			this.adjustTableSize();
			this.table.tableWidth = this.table.element.clientWidth;
			
			if(!force){	
				this.reRenderInPosition();
				this.scrollHorizontal(this.scrollLeft);
			}else {
				this.renderTable();
			}
		}
		
		resetScroll(){
			this.element.scrollLeft = 0;
			this.element.scrollTop = 0;
			
			if(this.table.browser === "ie"){
				var event = document.createEvent("Event");
				event.initEvent("scroll", false, true);
				this.element.dispatchEvent(event);
			}else {
				this.element.dispatchEvent(new Event('scroll'));
			}
		}
	}

	class FooterManager extends CoreFeature{

		constructor(table){
			super(table);

			this.active = false;
			this.element = this.createElement(); //containing element
			this.containerElement = this.createContainerElement(); //containing element
			this.external = false;
		}

		initialize(){
			this.initializeElement();
		}

		createElement(){
			var el = document.createElement("div");

			el.classList.add("tabulator-footer");

			return el;
		}

		
		createContainerElement(){
			var el = document.createElement("div");

			el.classList.add("tabulator-footer-contents");

			this.element.appendChild(el);

			return el;
		}

		initializeElement(){
			if(this.table.options.footerElement){

				switch(typeof this.table.options.footerElement){
					case "string":
						if(this.table.options.footerElement[0] === "<"){
							this.containerElement.innerHTML = this.table.options.footerElement;
						}else {
							this.external = true;
							this.containerElement = document.querySelector(this.table.options.footerElement);
						}
						break;

					default:
						this.element = this.table.options.footerElement;
						break;
				}
			}
		}

		getElement(){
			return this.element;
		}

		append(element){
			this.activate();

			this.containerElement.appendChild(element);
			this.table.rowManager.adjustTableSize();
		}

		prepend(element){
			this.activate();

			this.element.insertBefore(element, this.element.firstChild);
			this.table.rowManager.adjustTableSize();
		}

		remove(element){
			element.parentNode.removeChild(element);
			this.deactivate();
		}

		deactivate(force){
			if(!this.element.firstChild || force){
				if(!this.external){
					this.element.parentNode.removeChild(this.element);
				}
				this.active = false;
			}
		}

		activate(){
			if(!this.active){
				this.active = true;
				if(!this.external){
					this.table.element.appendChild(this.getElement());
					this.table.element.style.display = '';
				}
			}
		}

		redraw(){
			this.dispatch("footer-redraw");
		}
	}

	class InteractionManager extends CoreFeature {
		
		constructor (table){
			super(table);
			
			this.el = null;
			
			this.abortClasses = ["tabulator-headers", "tabulator-table"];
			
			this.previousTargets = {};
			
			this.listeners = [
				"click",
				"dblclick",
				"contextmenu",
				"mouseenter",
				"mouseleave",
				"mouseover",
				"mouseout",
				"mousemove",
				"mouseup",
				"mousedown",
				"touchstart",
				"touchend",
			];
			
			this.componentMap = {
				"tabulator-cell":"cell",
				"tabulator-row":"row",
				"tabulator-group":"group",
				"tabulator-col":"column",
			};
			
			this.pseudoTrackers = {
				"row":{
					subscriber:null,
					target:null,
				},
				"cell":{
					subscriber:null,
					target:null,
				},
				"group":{
					subscriber:null,
					target:null,
				},
				"column":{
					subscriber:null,
					target:null,
				},
			};
			
			this.pseudoTracking = false;
		}
		
		initialize(){
			this.el = this.table.element;
			
			this.buildListenerMap();
			this.bindSubscriptionWatchers();
		}
		
		buildListenerMap(){
			var listenerMap = {};
			
			this.listeners.forEach((listener) => {
				listenerMap[listener] = {
					handler:null,
					components:[],
				};
			});
			
			this.listeners = listenerMap;
		}
		
		bindPseudoEvents(){
			Object.keys(this.pseudoTrackers).forEach((key) => {
				this.pseudoTrackers[key].subscriber = this.pseudoMouseEnter.bind(this, key);
				this.subscribe(key + "-mouseover", this.pseudoTrackers[key].subscriber);
			});
			
			this.pseudoTracking = true;
		}
		
		pseudoMouseEnter(key, e, target){
			if(this.pseudoTrackers[key].target !== target){
				
				if(this.pseudoTrackers[key].target){
					this.dispatch(key + "-mouseleave", e, this.pseudoTrackers[key].target);
				}
				
				this.pseudoMouseLeave(key, e);
				
				this.pseudoTrackers[key].target = target;
				
				this.dispatch(key + "-mouseenter", e, target);
			}
		}
		
		pseudoMouseLeave(key, e){
			var leaveList = Object.keys(this.pseudoTrackers),
			linkedKeys = {
				"row":["cell"],
				"cell":["row"],
			};
			
			leaveList = leaveList.filter((item) => {
				var links = linkedKeys[key];
				return item !== key && (!links || (links && !links.includes(item)));
			});
			
			
			leaveList.forEach((key) => {
				var target = this.pseudoTrackers[key].target;
				
				if(this.pseudoTrackers[key].target){
					this.dispatch(key + "-mouseleave", e, target);
					
					this.pseudoTrackers[key].target = null;
				}
			});
		}
		
		
		bindSubscriptionWatchers(){
			var listeners = Object.keys(this.listeners),
			components = Object.values(this.componentMap);
			
			for(let comp of components){
				for(let listener of listeners){
					let key = comp + "-" + listener;
					
					this.subscriptionChange(key, this.subscriptionChanged.bind(this, comp, listener));
				}
			}
			
			this.subscribe("table-destroy", this.clearWatchers.bind(this));
		}
		
		subscriptionChanged(component, key, added){
			var listener = this.listeners[key].components,
			index = listener.indexOf(component),
			changed = false;
			
			if(added){
				if(index === -1){
					listener.push(component);
					changed = true;
				}
			}else {
				if(!this.subscribed(component + "-" + key)){
					if(index > -1){
						listener.splice(index, 1);
						changed = true;
					}
				}
			}
			
			if((key === "mouseenter" || key === "mouseleave") && !this.pseudoTracking){
				this.bindPseudoEvents();
			}
			
			if(changed){
				this.updateEventListeners();
			}
		}
		
		updateEventListeners(){
			for(let key in this.listeners){
				let listener = this.listeners[key];
				
				if(listener.components.length){
					if(!listener.handler){
						listener.handler = this.track.bind(this, key);
						this.el.addEventListener(key, listener.handler);
						// this.el.addEventListener(key, listener.handler, {passive: true})
					}
				}else {
					if(listener.handler){
						this.el.removeEventListener(key, listener.handler);
						listener.handler = null;
					}
				}
			}
		}
		
		track(type, e){
			var path = (e.composedPath && e.composedPath()) || e.path;
			
			var targets = this.findTargets(path);
			targets = this.bindComponents(type, targets);
			
			this.triggerEvents(type, e, targets);
			
			if(this.pseudoTracking && (type == "mouseover" || type == "mouseleave") && !Object.keys(targets).length){
				this.pseudoMouseLeave("none", e);
			}
		}
		
		findTargets(path){
			var targets = {};
			
			let componentMap = Object.keys(this.componentMap);
			
			for (let el of path) {
				let classList = el.classList ? [...el.classList] : [];
				
				let abort = classList.filter((item) => {
					return this.abortClasses.includes(item);
				});
				
				if(abort.length){
					break;
				}
				
				let elTargets = classList.filter((item) => {
					return componentMap.includes(item);
				});
				
				for (let target of elTargets) {
					if(!targets[this.componentMap[target]]){
						targets[this.componentMap[target]] = el;
					}
				}
			}

			if(targets.group && targets.group === targets.row){
				delete targets.row;
			}

			return targets;
		}
		
		bindComponents(type, targets){
			//ensure row component is looked up before cell
			var keys = Object.keys(targets).reverse(),
			listener = this.listeners[type],
			matches = {},
			output = {},
			targetMatches = {};
		
			for(let key of keys){
				let component,
				target = targets[key],
				previousTarget = this.previousTargets[key];
				
				if(previousTarget && previousTarget.target === target){
					component = previousTarget.component;
				}else {
					switch(key){
						case "row":
						case "group":
							if(listener.components.includes("row") || listener.components.includes("cell") || listener.components.includes("group")){
								let rows = this.table.rowManager.getVisibleRows(true);
							
								component = rows.find((row) => {
									return row.getElement() === target;
								});
							
								if(targets["row"] && targets["row"].parentNode && targets["row"].parentNode.closest(".tabulator-row")){
									targets[key] = false;
								}
							}
							break;
						
						case "column":
							if(listener.components.includes("column")){
								component = this.table.columnManager.findColumn(target);
							}
							break;
						
						case "cell":
							if(listener.components.includes("cell")){
								if(matches["row"] instanceof Row){
									component = matches["row"].findCell(target);
								}else {	
									if(targets["row"]){
										console.warn("Event Target Lookup Error - The row this cell is attached to cannot be found, has the table been reinitialized without being destroyed first?");
									}
								}
							}
							break;
					}
				}
				
				if(component){
					matches[key] = component;
					targetMatches[key] = {
						target:target,
						component:component,
					};
				}
			}
			
			this.previousTargets = targetMatches;

			//reverse order keys are set in so events trigger in correct sequence
			Object.keys(targets).forEach((key) => {
				let value = matches[key];
				output[key] = value;
			});
			
			return output;
		}
		
		triggerEvents(type, e, targets){
			var listener = this.listeners[type];

			for(let key in targets){
				if(targets[key] && listener.components.includes(key)){
					this.dispatch(key + "-" + type, e, targets[key]);
				}
			}
		}
		
		clearWatchers(){
			for(let key in this.listeners){
				let listener = this.listeners[key];
				
				if(listener.handler){
					this.el.removeEventListener(key, listener.handler);
					listener.handler = null;
				}
			}
		}
	}

	class ComponentFunctionBinder{

		constructor(table){
			this.table = table;

			this.bindings = {};
		}

		bind(type, funcName, handler){
			if(!this.bindings[type]){
				this.bindings[type] = {};
			}

			if(this.bindings[type][funcName]){
				console.warn("Unable to bind component handler, a matching function name is already bound", type, funcName, handler);
			}else {
				this.bindings[type][funcName] = handler;
			}
		}

		handle(type, component, name){
			if(this.bindings[type] && this.bindings[type][name] && typeof this.bindings[type][name].bind === 'function'){
				return this.bindings[type][name].bind(null, component);
			}else {
				if(name !== "then" && typeof name === "string" && !name.startsWith("_")){
					if(this.table.options.debugInvalidComponentFuncs){
						console.error("The " + type + " component does not have a " + name + " function, have you checked that you have the correct Tabulator module installed?");
					}
				}
			}
		}
	}

	class DataLoader extends CoreFeature{
		constructor(table){
			super(table);
			
			this.requestOrder = 0; //prevent requests coming out of sequence if overridden by another load request
			this.loading = false;
		}
		
		initialize(){}
		
		load(data, params, config, replace, silent, columnsChanged){
			var requestNo = ++this.requestOrder;

			if(this.table.destroyed){
				return Promise.resolve();
			}
			
			this.dispatchExternal("dataLoading", data);
			
			//parse json data to array
			if (data && (data.indexOf("{") == 0 || data.indexOf("[") == 0)){
				data = JSON.parse(data);
			}
			
			if(this.confirm("data-loading", [data, params, config, silent])){
				this.loading = true;
				
				if(!silent){
					this.alertLoader();
				}
				
				//get params for request
				params = this.chain("data-params", [data, config, silent], params || {}, params || {});
				
				params = this.mapParams(params, this.table.options.dataSendParams);
				
				var result = this.chain("data-load", [data, params, config, silent], false, Promise.resolve([]));
				
				return result.then((response) => {
					if(!this.table.destroyed){
						if(!Array.isArray(response) && typeof response == "object"){
							response = this.mapParams(response, this.objectInvert(this.table.options.dataReceiveParams));
						}
						
						var rowData = this.chain("data-loaded", [response], null, response);
						
						if(requestNo == this.requestOrder){
							this.clearAlert();
							
							if(rowData !== false){
								this.dispatchExternal("dataLoaded", rowData);
								this.table.rowManager.setData(rowData,  replace, typeof columnsChanged === "undefined" ? !replace : columnsChanged);
							}
						}else {
							console.warn("Data Load Response Blocked - An active data load request was blocked by an attempt to change table data while the request was being made");
						}
					}else {
						console.warn("Data Load Response Blocked - Table has been destroyed");
					}
				}).catch((error) => {
					console.error("Data Load Error: ", error);
					this.dispatchExternal("dataLoadError", error);
					
					if(!silent){
						this.alertError();
					}
					
					setTimeout(() => {
						this.clearAlert();
					}, this.table.options.dataLoaderErrorTimeout);
				})
					.finally(() => {
						this.loading = false;
					});
			}else {
				this.dispatchExternal("dataLoaded", data);
				
				if(!data){
					data = [];
				}
				
				this.table.rowManager.setData(data, replace, typeof columnsChanged === "undefined" ? !replace : columnsChanged);
				return Promise.resolve();
			}
		}
		
		mapParams(params, map){
			var output = {};
			
			for(let key in params){
				output[map.hasOwnProperty(key) ? map[key] : key] = params[key];
			}
			
			return output;
		}
		
		objectInvert(obj){
			var output = {};
			
			for(let key in obj){
				output[obj[key]] = key;
			}
			
			return output;
		}
		
		blockActiveLoad(){
			this.requestOrder++;
		}
		
		alertLoader(){
			var shouldLoad = typeof this.table.options.dataLoader === "function" ? this.table.options.dataLoader() : this.table.options.dataLoader;
			
			if(shouldLoad){
				this.table.alertManager.alert(this.table.options.dataLoaderLoading || this.langText("data|loading"));
			}
		}
		
		alertError(){
			this.table.alertManager.alert(this.table.options.dataLoaderError || this.langText("data|error"), "error");
		}
		
		clearAlert(){
			this.table.alertManager.clear();
		}
	}

	class ExternalEventBus {

		constructor(table, optionsList, debug){
			this.table = table;
			this.events = {};
			this.optionsList = optionsList || {};
			this.subscriptionNotifiers = {};

			this.dispatch = debug ? this._debugDispatch.bind(this) : this._dispatch.bind(this);
			this.debug = debug;
		}

		subscriptionChange(key, callback){
			if(!this.subscriptionNotifiers[key]){
				this.subscriptionNotifiers[key] = [];
			}

			this.subscriptionNotifiers[key].push(callback);

			if(this.subscribed(key)){
				this._notifySubscriptionChange(key, true);
			}
		}

		subscribe(key, callback){
			if(!this.events[key]){
				this.events[key] = [];
			}

			this.events[key].push(callback);

			this._notifySubscriptionChange(key, true);
		}

		unsubscribe(key, callback){
			var index;

			if(this.events[key]){
				if(callback){
					index = this.events[key].findIndex((item) => {
						return item === callback;
					});

					if(index > -1){
						this.events[key].splice(index, 1);
					}else {
						console.warn("Cannot remove event, no matching event found:", key, callback);
						return;
					}
				}else {
					delete this.events[key];
				}
			}else {
				console.warn("Cannot remove event, no events set on:", key);
				return;
			}

			this._notifySubscriptionChange(key, false);
		}

		subscribed(key){
			return this.events[key] && this.events[key].length;
		}

		_notifySubscriptionChange(key, subscribed){
			var notifiers = this.subscriptionNotifiers[key];

			if(notifiers){
				notifiers.forEach((callback)=>{
					callback(subscribed);
				});
			}
		}

		_dispatch(){
			var args = Array.from(arguments),
			key = args.shift(),
			result;

			if(this.events[key]){
				this.events[key].forEach((callback, i) => {
					let callResult = callback.apply(this.table, args);

					if(!i){
						result = callResult;
					}
				});
			}

			return result;
		}

		_debugDispatch(){
			var args = Array.from(arguments),
			key = args[0];

			args[0] = "ExternalEvent:" + args[0];

			if(this.debug === true || this.debug.includes(key)){
				console.log(...args);
			}

			return this._dispatch(...arguments);
		}
	}

	class InternalEventBus {

		constructor(debug){
			this.events = {};
			this.subscriptionNotifiers = {};

			this.dispatch = debug ? this._debugDispatch.bind(this) : this._dispatch.bind(this);
			this.chain = debug ? this._debugChain.bind(this) : this._chain.bind(this);
			this.confirm = debug ? this._debugConfirm.bind(this) : this._confirm.bind(this);
			this.debug = debug;
		}

		subscriptionChange(key, callback){
			if(!this.subscriptionNotifiers[key]){
				this.subscriptionNotifiers[key] = [];
			}

			this.subscriptionNotifiers[key].push(callback);

			if(this.subscribed(key)){
				this._notifySubscriptionChange(key, true);
			}
		}

		subscribe(key, callback, priority = 10000){
			if(!this.events[key]){
				this.events[key] = [];
			}

			this.events[key].push({callback, priority});

			this.events[key].sort((a, b) => {
				return a.priority - b.priority;
			});

			this._notifySubscriptionChange(key, true);
		}

		unsubscribe(key, callback){
			var index;

			if(this.events[key]){
				if(callback){
					index = this.events[key].findIndex((item) => {
						return item.callback === callback;
					});

					if(index > -1){
						this.events[key].splice(index, 1);
					}else {
						console.warn("Cannot remove event, no matching event found:", key, callback);
						return;
					}
				}
			}else {
				console.warn("Cannot remove event, no events set on:", key);
				return;
			}

			this._notifySubscriptionChange(key, false);
		}

		subscribed(key){
			return this.events[key] && this.events[key].length;
		}

		_chain(key, args, initialValue, fallback){
			var value = initialValue;

			if(!Array.isArray(args)){
				args = [args];
			}

			if(this.subscribed(key)){
				this.events[key].forEach((subscriber, i) => {
					value = subscriber.callback.apply(this, args.concat([value]));
				});

				return value;
			}else {
				return typeof fallback === "function" ? fallback() : fallback;
			}
		}

		_confirm(key, args){
			var confirmed = false;

			if(!Array.isArray(args)){
				args = [args];
			}

			if(this.subscribed(key)){
				this.events[key].forEach((subscriber, i) => {
					if(subscriber.callback.apply(this, args)){
						confirmed = true;
					}
				});
			}

			return confirmed;
		}

		_notifySubscriptionChange(key, subscribed){
			var notifiers = this.subscriptionNotifiers[key];

			if(notifiers){
				notifiers.forEach((callback)=>{
					callback(subscribed);
				});
			}
		}

		_dispatch(){
			var args = Array.from(arguments),
			key = args.shift();

			if(this.events[key]){
				this.events[key].forEach((subscriber) => {
					subscriber.callback.apply(this, args);
				});
			}
		}

		_debugDispatch(){
			var args = Array.from(arguments),
			key = args[0];

			args[0] = "InternalEvent:" + key;

			if(this.debug === true || this.debug.includes(key)){
				console.log(...args);
			}

			return this._dispatch(...arguments);
		}

		_debugChain(){
			var args = Array.from(arguments),
			key = args[0];

			args[0] = "InternalEvent:" + key;

			if(this.debug === true || this.debug.includes(key)){
				console.log(...args);
			}

			return this._chain(...arguments);
		}

		_debugConfirm(){
			var args = Array.from(arguments),
			key = args[0];

			args[0] = "InternalEvent:" + key;

			if(this.debug === true || this.debug.includes(key)){
				console.log(...args);
			}

			return this._confirm(...arguments);
		}
	}

	class DeprecationAdvisor extends CoreFeature{
		
		constructor(table){
			super(table);
		}
		
		_warnUser(){
			if(this.options("debugDeprecation")){
				console.warn(...arguments);
			}
		}
		
		check(oldOption, newOption, convert){
			var msg = "";
			
			if(typeof this.options(oldOption) !== "undefined"){
				msg = "Deprecated Setup Option - Use of the %c" + oldOption + "%c option is now deprecated";
				
				if(newOption){
					msg = msg + ", Please use the %c" + newOption + "%c option instead";
					this._warnUser(msg, 'font-weight: bold;', 'font-weight: normal;', 'font-weight: bold;', 'font-weight: normal;');

					if(convert){
						this.table.options[newOption] = this.table.options[oldOption];
					}
				}else {
					this._warnUser(msg, 'font-weight: bold;', 'font-weight: normal;');
				}
				
				return false;
			}else {
				return true;
			}
		}
		
		checkMsg(oldOption, msg){
			if(typeof this.options(oldOption) !== "undefined"){
				this._warnUser("%cDeprecated Setup Option - Use of the %c" + oldOption + " %c option is now deprecated, " + msg, 'font-weight: normal;', 'font-weight: bold;', 'font-weight: normal;');
				
				return false;
			}else {
				return true;
			}
		}
		
		msg(msg){
			this._warnUser(msg);
		}
	}

	class DependencyRegistry extends CoreFeature{
		
		constructor(table){
			super(table);
			
			this.deps = {};
			
			this.props = {
				
			};
		}
		
		initialize(){
			this.deps = Object.assign({}, this.options("dependencies"));
		}
		
		lookup(key, prop, silent){
			if(Array.isArray(key)){
				for (const item of key) {
					var match = this.lookup(item, prop, true);

					if(match){
						break;
					}
				}

				if(match){
					return match;
				}else {
					this.error(key);
				}
			}else {
				if(prop){
					return this.lookupProp(key, prop, silent);
				}else {
					return this.lookupKey(key, silent);
				}
			}
		}
		
		lookupProp(key, prop, silent){
			var dependency;
			
			if(this.props[key] && this.props[key][prop]){
				return this.props[key][prop];
			}else {
				dependency = this.lookupKey(key, silent);
				
				if(dependency){
					if(!this.props[key]){
						this.props[key] = {};
					}
					
					this.props[key][prop] = dependency[prop] || dependency;
					return this.props[key][prop];
				}
			}
		}
		
		lookupKey(key, silent){
			var dependency;
			
			if(this.deps[key]){
				dependency = this.deps[key];
			}else if(window[key]){
				this.deps[key] = window[key];
				dependency = this.deps[key];
			}else {
				if(!silent){
					this.error(key);
				}
			}
			
			return dependency;
		}

		error(key){
			console.error("Unable to find dependency", key, "Please check documentation and ensure you have imported the required library into your project");
		}
	}

	let Popup$1 = class Popup extends CoreFeature{
		constructor(table, element, parent){
			super(table);
			
			this.element = element;
			this.container = this._lookupContainer();
			
			this.parent = parent;
			
			this.reversedX = false;
			this.childPopup = null;
			this.blurable = false;
			this.blurCallback = null;
			this.blurEventsBound = false;
			this.renderedCallback = null;
			
			this.visible = false;
			this.hideable = true;
			
			this.element.classList.add("tabulator-popup-container");
			
			this.blurEvent = this.hide.bind(this, false);
			this.escEvent = this._escapeCheck.bind(this);
			
			this.destroyBinding = this.tableDestroyed.bind(this);
			this.destroyed = false;
		}
		
		tableDestroyed(){
			this.destroyed = true;
			this.hide(true);
		}
		
		_lookupContainer(){
			var container = this.table.options.popupContainer;
			
			if(typeof container === "string"){
				container = document.querySelector(container);
				
				if(!container){
					console.warn("Menu Error - no container element found matching selector:",  this.table.options.popupContainer , "(defaulting to document body)");
				}
			}else if (container === true){
				container = this.table.element;
			}
			
			if(container && !this._checkContainerIsParent(container)){
				container = false;
				console.warn("Menu Error - container element does not contain this table:",  this.table.options.popupContainer , "(defaulting to document body)");
			}
			
			if(!container){
				container = document.body;
			}
			
			return container;
		}
		
		_checkContainerIsParent(container, element = this.table.element){
			if(container === element){
				return true;
			}else {
				return element.parentNode ? this._checkContainerIsParent(container, element.parentNode) : false;
			}
		}
		
		renderCallback(callback){
			this.renderedCallback = callback;
		}
		
		containerEventCoords(e){
			var touch = !(e instanceof MouseEvent);
			
			var x = touch ? e.touches[0].pageX : e.pageX;
			var y = touch ? e.touches[0].pageY : e.pageY;
			
			if(this.container !== document.body){
				let parentOffset = Helpers.elOffset(this.container);
				
				x -= parentOffset.left;
				y -= parentOffset.top;
			}
			
			return {x, y};
		}
		
		elementPositionCoords(element, position = "right"){
			var offset = Helpers.elOffset(element),
			containerOffset, x, y;
			
			if(this.container !== document.body){
				containerOffset = Helpers.elOffset(this.container);
				
				offset.left -= containerOffset.left;
				offset.top -= containerOffset.top;
			}
			
			switch(position){
				case "right":
					x = offset.left + element.offsetWidth;
					y = offset.top - 1;
					break;
				
				case "bottom":
					x = offset.left;
					y = offset.top + element.offsetHeight;
					break;
				
				case "left":
					x = offset.left;
					y = offset.top - 1;
					break;
				
				case "top":
					x = offset.left;
					y = offset.top;
					break;
				
				case "center":
					x = offset.left + (element.offsetWidth / 2);
					y = offset.top + (element.offsetHeight / 2);
					break;
				
			}
			
			return {x, y, offset};
		}
		
		show(origin, position){
			var x, y, parentEl, parentOffset, coords;
			
			if(this.destroyed || this.table.destroyed){
				return this;
			}
			
			if(origin instanceof HTMLElement){
				parentEl = origin;
				coords = this.elementPositionCoords(origin, position);
				
				parentOffset = coords.offset;
				x = coords.x;
				y = coords.y;
				
			}else if(typeof origin === "number"){
				parentOffset = {top:0, left:0};
				x = origin;
				y = position;
			}else {
				coords = this.containerEventCoords(origin);
				
				x = coords.x;
				y = coords.y;
				
				this.reversedX = false;
			}
			
			this.element.style.top = y + "px";
			this.element.style.left = x + "px";
			
			this.container.appendChild(this.element);
			
			if(typeof this.renderedCallback === "function"){
				this.renderedCallback();
			}
			
			this._fitToScreen(x, y, parentEl, parentOffset, position);
			
			this.visible = true;
			
			this.subscribe("table-destroy", this.destroyBinding);
			
			this.element.addEventListener("mousedown", (e) => {
				e.stopPropagation();
			});
			
			return this;
		}
		
		_fitToScreen(x, y, parentEl, parentOffset, position){
			var scrollTop = this.container === document.body ? document.documentElement.scrollTop : this.container.scrollTop;
			
			//move menu to start on right edge if it is too close to the edge of the screen
			if((x + this.element.offsetWidth) >= this.container.offsetWidth || this.reversedX){
				this.element.style.left = "";
				
				if(parentEl){
					this.element.style.right = (this.container.offsetWidth - parentOffset.left) + "px";
				}else {
					this.element.style.right = (this.container.offsetWidth - x) + "px";
				}
				
				this.reversedX = true;
			}
			
			//move menu to start on bottom edge if it is too close to the edge of the screen
			let offsetHeight = Math.max(this.container.offsetHeight, scrollTop ? this.container.scrollHeight : 0);
			if((y + this.element.offsetHeight) > offsetHeight) {
				if(parentEl){
					switch(position){
						case "bottom":
							this.element.style.top = (parseInt(this.element.style.top) - this.element.offsetHeight - parentEl.offsetHeight - 1) + "px";
							break;
						
						default:
							this.element.style.top = (parseInt(this.element.style.top) - this.element.offsetHeight + parentEl.offsetHeight + 1) + "px";
					}
					
				}else {
					this.element.style.height = offsetHeight + "px";
				}
			}
		}
		
		isVisible(){
			return this.visible;
		}
		
		hideOnBlur(callback){
			this.blurable = true;
			
			if(this.visible){
				setTimeout(() => {
					if(this.visible){
						this.table.rowManager.element.addEventListener("scroll", this.blurEvent);
						this.subscribe("cell-editing", this.blurEvent);
						document.body.addEventListener("click", this.blurEvent);
						document.body.addEventListener("contextmenu", this.blurEvent);
						document.body.addEventListener("mousedown", this.blurEvent);
						window.addEventListener("resize", this.blurEvent);
						document.body.addEventListener("keydown", this.escEvent);

						this.blurEventsBound = true;
					}
				}, 100);
				
				this.blurCallback = callback;
			}
			
			return this;
		}
		
		_escapeCheck(e){
			if(e.keyCode == 27){
				this.hide();
			}
		}
		
		blockHide(){
			this.hideable = false;
		}
		
		restoreHide(){
			this.hideable = true;
		}
		
		hide(silent = false){
			if(this.visible && this.hideable){
				if(this.blurable && this.blurEventsBound){
					document.body.removeEventListener("keydown", this.escEvent);
					document.body.removeEventListener("click", this.blurEvent);
					document.body.removeEventListener("contextmenu", this.blurEvent);
					document.body.removeEventListener("mousedown", this.blurEvent);
					window.removeEventListener("resize", this.blurEvent);
					this.table.rowManager.element.removeEventListener("scroll", this.blurEvent);
					this.unsubscribe("cell-editing", this.blurEvent);

					this.blurEventsBound = false;
				}
				
				if(this.childPopup){
					this.childPopup.hide();
				}
				
				if(this.parent){
					this.parent.childPopup = null;
				}
				
				if(this.element.parentNode){
					this.element.parentNode.removeChild(this.element);
				}
				
				this.visible = false;
				
				if(this.blurCallback && !silent){
					this.blurCallback();
				}
				
				this.unsubscribe("table-destroy", this.destroyBinding);
			}
			
			return this;
		}
		
		child(element){
			if(this.childPopup){
				this.childPopup.hide();
			}
			
			this.childPopup = new Popup(this.table, element, this);
			
			return this.childPopup;
		}
	};

	class Module extends CoreFeature{
		
		constructor(table, name){
			super(table);
			
			this._handler = null;
		}
		
		initialize(){
			// setup module when table is initialized, to be overridden in module
		}
		
		
		///////////////////////////////////
		////// Options Registration ///////
		///////////////////////////////////
		
		registerTableOption(key, value){
			this.table.optionsList.register(key, value);
		}
		
		registerColumnOption(key, value){
			this.table.columnManager.optionsList.register(key, value);
		}
		
		///////////////////////////////////
		/// Public Function Registration ///
		///////////////////////////////////
		
		registerTableFunction(name, func){
			if(typeof this.table[name] === "undefined"){
				this.table[name] = (...args) => {
					this.table.initGuard(name);
					
					return func(...args);
				};
			}else {
				console.warn("Unable to bind table function, name already in use", name);
			}
		}
		
		registerComponentFunction(component, func, handler){
			return this.table.componentFunctionBinder.bind(component, func, handler);
		}
		
		///////////////////////////////////
		////////// Data Pipeline //////////
		///////////////////////////////////
		
		registerDataHandler(handler, priority){
			this.table.rowManager.registerDataPipelineHandler(handler, priority);
			this._handler = handler;
		}
		
		registerDisplayHandler(handler, priority){
			this.table.rowManager.registerDisplayPipelineHandler(handler, priority);
			this._handler = handler;
		}
		
		displayRows(adjust){
			var index = this.table.rowManager.displayRows.length - 1, 
			lookupIndex;
			
			if(this._handler){
				lookupIndex = this.table.rowManager.displayPipeline.findIndex((item) => {
					return item.handler === this._handler;
				});

				if(lookupIndex > -1){
					index = lookupIndex;
				}
			}
			
			if(adjust){
				index = index + adjust;
			}

			if(this._handler){
				if(index > -1){
					return this.table.rowManager.getDisplayRows(index);
				}else {
					return this.activeRows();
				}
			}	
		}
		
		activeRows(){
			return this.table.rowManager.activeRows;
		}
		
		refreshData(renderInPosition, handler){
			if(!handler){
				handler = this._handler;
			}
			
			if(handler){
				this.table.rowManager.refreshActiveData(handler, false, renderInPosition);
			}
		}
		
		///////////////////////////////////
		//////// Footer Management ////////
		///////////////////////////////////
		
		footerAppend(element){
			return this.table.footerManager.append(element);
		}
		
		footerPrepend(element){
			return this.table.footerManager.prepend(element);
		}
		
		footerRemove(element){
			return this.table.footerManager.remove(element);
		} 
		
		///////////////////////////////////
		//////// Popups Management ////////
		///////////////////////////////////
		
		popup(menuEl, menuContainer){
			return new Popup$1(this.table, menuEl, menuContainer);
		}
		
		///////////////////////////////////
		//////// Alert Management ////////
		///////////////////////////////////
		
		alert(content, type){
			return this.table.alertManager.alert(content, type);
		}
		
		clearAlert(){
			return this.table.alertManager.clear();
		}
		
	}

	//resize columns to fit data they contain
	function fitData(columns, forced){
		if(forced){
			this.table.columnManager.renderer.reinitializeColumnWidths(columns);
		}
		
		if(this.table.options.responsiveLayout && this.table.modExists("responsiveLayout", true)){
			this.table.modules.responsiveLayout.update();
		}
	}

	//resize columns to fit data they contain and stretch row to fill table, also used for fitDataTable
	function fitDataGeneral(columns, forced){
		columns.forEach(function(column){
			column.reinitializeWidth();
		});

		if(this.table.options.responsiveLayout && this.table.modExists("responsiveLayout", true)){
			this.table.modules.responsiveLayout.update();
		}
	}

	//resize columns to fit data the contain and stretch last column to fill table
	function fitDataStretch(columns, forced){
		var colsWidth = 0,
		tableWidth = this.table.rowManager.element.clientWidth,
		gap = 0,
		lastCol = false;

		columns.forEach((column, i) => {
			if(!column.widthFixed){
				column.reinitializeWidth();
			}

			if(this.table.options.responsiveLayout ? column.modules.responsive.visible : column.visible){
				lastCol = column;
			}

			if(column.visible){
				colsWidth += column.getWidth();
			}
		});

		if(lastCol){
			gap = tableWidth - colsWidth + lastCol.getWidth();

			if(this.table.options.responsiveLayout && this.table.modExists("responsiveLayout", true)){
				lastCol.setWidth(0);
				this.table.modules.responsiveLayout.update();
			}

			if(gap > 0){
				lastCol.setWidth(gap);
			}else {
				lastCol.reinitializeWidth();
			}
		}else {
			if(this.table.options.responsiveLayout && this.table.modExists("responsiveLayout", true)){
				this.table.modules.responsiveLayout.update();
			}
		}
	}

	//resize columns to fit
	function fitColumns(columns, forced){
		var totalWidth = this.table.rowManager.element.getBoundingClientRect().width; //table element width
		var fixedWidth = 0; //total width of columns with a defined width
		var flexWidth = 0; //total width available to flexible columns
		var flexGrowUnits = 0; //total number of widthGrow blocks across all columns
		var flexColWidth = 0; //desired width of flexible columns
		var flexColumns = []; //array of flexible width columns
		var fixedShrinkColumns = []; //array of fixed width columns that can shrink
		var flexShrinkUnits = 0; //total number of widthShrink blocks across all columns
		var overflowWidth = 0; //horizontal overflow width
		var gapFill = 0; //number of pixels to be added to final column to close and half pixel gaps

		function calcWidth(width){
			var colWidth;

			if(typeof(width) == "string"){
				if(width.indexOf("%") > -1){
					colWidth = (totalWidth / 100) * parseInt(width);
				}else {
					colWidth = parseInt(width);
				}
			}else {
				colWidth = width;
			}

			return colWidth;
		}

		//ensure columns resize to take up the correct amount of space
		function scaleColumns(columns, freeSpace, colWidth, shrinkCols){
			var oversizeCols = [],
			oversizeSpace = 0,
			remainingSpace = 0,
			nextColWidth = 0,
			remainingFlexGrowUnits = flexGrowUnits,
			gap = 0,
			changeUnits = 0,
			undersizeCols = [];

			function calcGrow(col){
				return (colWidth * (col.column.definition.widthGrow || 1));
			}

			function calcShrink(col){
				return  (calcWidth(col.width) - (colWidth * (col.column.definition.widthShrink || 0)));
			}

			columns.forEach(function(col, i){
				var width = shrinkCols ? calcShrink(col) : calcGrow(col);
				if(col.column.minWidth >= width){
					oversizeCols.push(col);
				}else {
					if(col.column.maxWidth && col.column.maxWidth < width){
						col.width = col.column.maxWidth;
						freeSpace -= col.column.maxWidth;

						remainingFlexGrowUnits -= shrinkCols ? (col.column.definition.widthShrink || 1) : (col.column.definition.widthGrow || 1);

						if(remainingFlexGrowUnits){
							colWidth = Math.floor(freeSpace/remainingFlexGrowUnits);
						}
					}else {
						undersizeCols.push(col);
						changeUnits += shrinkCols ? (col.column.definition.widthShrink || 1) : (col.column.definition.widthGrow || 1);
					}
				}
			});

			if(oversizeCols.length){
				oversizeCols.forEach(function(col){
					oversizeSpace += shrinkCols ?  col.width - col.column.minWidth : col.column.minWidth;
					col.width = col.column.minWidth;
				});

				remainingSpace = freeSpace - oversizeSpace;

				nextColWidth = changeUnits ? Math.floor(remainingSpace/changeUnits) : remainingSpace;

				gap = scaleColumns(undersizeCols, remainingSpace, nextColWidth, shrinkCols);
			}else {
				gap = changeUnits ? freeSpace - (Math.floor(freeSpace/changeUnits) * changeUnits) : freeSpace;

				undersizeCols.forEach(function(column){
					column.width = shrinkCols ? calcShrink(column) : calcGrow(column);
				});
			}

			return gap;
		}

		if(this.table.options.responsiveLayout && this.table.modExists("responsiveLayout", true)){
			this.table.modules.responsiveLayout.update();
		}

		//adjust for vertical scrollbar if present
		if(this.table.rowManager.element.scrollHeight > this.table.rowManager.element.clientHeight){
			totalWidth -= this.table.rowManager.element.offsetWidth - this.table.rowManager.element.clientWidth;
		}

		columns.forEach(function(column){
			var width, minWidth, colWidth;

			if(column.visible){

				width = column.definition.width;
				minWidth =  parseInt(column.minWidth);

				if(width){

					colWidth = calcWidth(width);

					fixedWidth += colWidth > minWidth ? colWidth : minWidth;

					if(column.definition.widthShrink){
						fixedShrinkColumns.push({
							column:column,
							width:colWidth > minWidth ? colWidth : minWidth
						});
						flexShrinkUnits += column.definition.widthShrink;
					}

				}else {
					flexColumns.push({
						column:column,
						width:0,
					});
					flexGrowUnits += column.definition.widthGrow || 1;
				}
			}
		});

		//calculate available space
		flexWidth = totalWidth - fixedWidth;

		//calculate correct column size
		flexColWidth = Math.floor(flexWidth / flexGrowUnits);

		//generate column widths
		gapFill = scaleColumns(flexColumns, flexWidth, flexColWidth, false);

		//increase width of last column to account for rounding errors
		if(flexColumns.length && gapFill > 0){
			flexColumns[flexColumns.length-1].width += gapFill;
		}

		//calculate space for columns to be shrunk into
		flexColumns.forEach(function(col){
			flexWidth -= col.width;
		});

		overflowWidth = Math.abs(gapFill) + flexWidth;

		//shrink oversize columns if there is no available space
		if(overflowWidth > 0 && flexShrinkUnits){
			gapFill = scaleColumns(fixedShrinkColumns, overflowWidth, Math.floor(overflowWidth / flexShrinkUnits), true);
		}

		//decrease width of last column to account for rounding errors
		if(gapFill && fixedShrinkColumns.length){
			fixedShrinkColumns[fixedShrinkColumns.length-1].width -= gapFill;
		}

		flexColumns.forEach(function(col){
			col.column.setWidth(col.width);
		});

		fixedShrinkColumns.forEach(function(col){
			col.column.setWidth(col.width);
		});
	}

	var defaultModes = {
		fitData:fitData,
		fitDataFill:fitDataGeneral,
		fitDataTable:fitDataGeneral,
		fitDataStretch:fitDataStretch,
		fitColumns:fitColumns ,
	};

	class Layout extends Module{

		static moduleName = "layout";

		//load defaults
		static modes = defaultModes;

		constructor(table){
			super(table, "layout");

			this.mode = null;

			this.registerTableOption("layout", "fitData"); //layout type
			this.registerTableOption("layoutColumnsOnNewData", false); //update column widths on setData

			this.registerColumnOption("widthGrow");
			this.registerColumnOption("widthShrink");
		}

		//initialize layout system
		initialize(){
			var layout = this.table.options.layout;

			if(Layout.modes[layout]){
				this.mode = layout;
			}else {
				console.warn("Layout Error - invalid mode set, defaulting to 'fitData' : " + layout);
				this.mode = 'fitData';
			}

			this.table.element.setAttribute("tabulator-layout", this.mode);
			this.subscribe("column-init", this.initializeColumn.bind(this));
		}

		initializeColumn(column){
			if(column.definition.widthGrow){
				column.definition.widthGrow = Number(column.definition.widthGrow);
			}
			if(column.definition.widthShrink){
				column.definition.widthShrink = Number(column.definition.widthShrink);
			}
		}

		getMode(){
			return this.mode;
		}

		//trigger table layout
		layout(dataChanged){

			var variableHeight = this.table.columnManager.columnsByIndex.find((column) => column.definition.variableHeight || column.definition.formatter === "textarea");
			
			this.dispatch("layout-refreshing");
			Layout.modes[this.mode].call(this, this.table.columnManager.columnsByIndex, dataChanged);

			if(variableHeight){
				this.table.rowManager.normalizeHeight(true);
			}

			this.dispatch("layout-refreshed");
		}
	}

	var defaultLangs = {
		"default":{ //hold default locale text
			"groups":{
				"item":"item",
				"items":"items",
			},
			"columns":{
			},
			"data":{
				"loading":"Loading",
				"error":"Error",
			},
			"pagination":{
				"page_size":"Page Size",
				"page_title":"Show Page",
				"first":"First",
				"first_title":"First Page",
				"last":"Last",
				"last_title":"Last Page",
				"prev":"Prev",
				"prev_title":"Prev Page",
				"next":"Next",
				"next_title":"Next Page",
				"all":"All",
				"counter":{
					"showing": "Showing",
					"of": "of",
					"rows": "rows",
					"pages": "pages",
				}
			},
			"headerFilters":{
				"default":"filter column...",
				"columns":{}
			}
		},
	};

	class Localize extends Module{

		static moduleName = "localize";

		//load defaults
		static langs = defaultLangs;

		constructor(table){
			super(table);

			this.locale = "default"; //current locale
			this.lang = false; //current language
			this.bindings = {}; //update events to call when locale is changed
			this.langList = {};

			this.registerTableOption("locale", false); //current system language
			this.registerTableOption("langs", {});
		}

		initialize(){
			this.langList = Helpers.deepClone(Localize.langs);

			if(this.table.options.columnDefaults.headerFilterPlaceholder !== false){
				this.setHeaderFilterPlaceholder(this.table.options.columnDefaults.headerFilterPlaceholder);
			}

			for(let locale in this.table.options.langs){
				this.installLang(locale, this.table.options.langs[locale]);
			}

			this.setLocale(this.table.options.locale);

			this.registerTableFunction("setLocale", this.setLocale.bind(this));
			this.registerTableFunction("getLocale", this.getLocale.bind(this));
			this.registerTableFunction("getLang", this.getLang.bind(this));
		}

		//set header placeholder
		setHeaderFilterPlaceholder(placeholder){
			this.langList.default.headerFilters.default = placeholder;
		}

		//setup a lang description object
		installLang(locale, lang){
			if(this.langList[locale]){
				this._setLangProp(this.langList[locale], lang);
			}else {
				this.langList[locale] = lang;
			}
		}

		_setLangProp(lang, values){
			for(let key in values){
				if(lang[key] && typeof lang[key] == "object"){
					this._setLangProp(lang[key], values[key]);
				}else {
					lang[key] = values[key];
				}
			}
		}

		//set current locale
		setLocale(desiredLocale){
			desiredLocale = desiredLocale || "default";

			//fill in any matching language values
			function traverseLang(trans, path){
				for(var prop in trans){
					if(typeof trans[prop] == "object"){
						if(!path[prop]){
							path[prop] = {};
						}
						traverseLang(trans[prop], path[prop]);
					}else {
						path[prop] = trans[prop];
					}
				}
			}

			//determining correct locale to load
			if(desiredLocale === true && navigator.language){
				//get local from system
				desiredLocale = navigator.language.toLowerCase();
			}

			if(desiredLocale){
				//if locale is not set, check for matching top level locale else use default
				if(!this.langList[desiredLocale]){
					let prefix = desiredLocale.split("-")[0];

					if(this.langList[prefix]){
						console.warn("Localization Error - Exact matching locale not found, using closest match: ", desiredLocale, prefix);
						desiredLocale = prefix;
					}else {
						console.warn("Localization Error - Matching locale not found, using default: ", desiredLocale);
						desiredLocale = "default";
					}
				}
			}

			this.locale = desiredLocale;

			//load default lang template
			this.lang = Helpers.deepClone(this.langList.default || {});

			if(desiredLocale != "default"){
				traverseLang(this.langList[desiredLocale], this.lang);
			}

			this.dispatchExternal("localized", this.locale, this.lang);

			this._executeBindings();
		}

		//get current locale
		getLocale(locale){
			return this.locale;
		}

		//get lang object for given local or current if none provided
		getLang(locale){
			return locale ? this.langList[locale] : this.lang;
		}

		//get text for current locale
		getText(path, value){
			var fillPath = value ? path + "|" + value : path,
			pathArray = fillPath.split("|"),
			text = this._getLangElement(pathArray, this.locale);

			// if(text === false){
			// 	console.warn("Localization Error - Matching localized text not found for given path: ", path);
			// }

			return text || "";
		}

		//traverse langs object and find localized copy
		_getLangElement(path, locale){
			var root = this.lang;

			path.forEach(function(level){
				var rootPath;

				if(root){
					rootPath = root[level];

					if(typeof rootPath != "undefined"){
						root = rootPath;
					}else {
						root = false;
					}
				}
			});

			return root;
		}

		//set update binding
		bind(path, callback){
			if(!this.bindings[path]){
				this.bindings[path] = [];
			}

			this.bindings[path].push(callback);

			callback(this.getText(path), this.lang);
		}

		//iterate through bindings and trigger updates
		_executeBindings(){
			for(let path in this.bindings){
				this.bindings[path].forEach((binding) => {
					binding(this.getText(path), this.lang);
				});
			}
		}
	}

	class Comms extends Module{

		static moduleName = "comms";

		constructor(table){
			super(table);
		}

		initialize(){
			this.registerTableFunction("tableComms", this.receive.bind(this));
		}

		getConnections(selectors){
			var connections = [],
			connection;

			connection = this.table.constructor.registry.lookupTable(selectors);

			connection.forEach((con) =>{
				if(this.table !== con){
					connections.push(con);
				}
			});

			return connections;
		}

		send(selectors, module, action, data){
			var connections = this.getConnections(selectors);

			connections.forEach((connection) => {
				connection.tableComms(this.table.element, module, action, data);
			});

			if(!connections.length && selectors){
				console.warn("Table Connection Error - No tables matching selector found", selectors);
			}
		}

		receive(table, module, action, data){
			if(this.table.modExists(module)){
				return this.table.modules[module].commsReceived(table, action, data);
			}else {
				console.warn("Inter-table Comms Error - no such module:", module);
			}
		}
	}

	var coreModules = /*#__PURE__*/Object.freeze({
		__proto__: null,
		CommsModule: Comms,
		LayoutModule: Layout,
		LocalizeModule: Localize
	});

	class TableRegistry {
		static registry = {
			tables:[],
			
			register(table){
				TableRegistry.registry.tables.push(table);
			},
			
			deregister(table){
				var index = TableRegistry.registry.tables.indexOf(table);
				
				if(index > -1){
					TableRegistry.registry.tables.splice(index, 1);
				}
			},
			
			lookupTable(query, silent){
				var results = [],
				matches, match;
				
				if(typeof query === "string"){
					matches = document.querySelectorAll(query);
					
					if(matches.length){
						for(var i = 0; i < matches.length; i++){
							match = TableRegistry.registry.matchElement(matches[i]);
							
							if(match){
								results.push(match);
							}
						}
					}
					
				}else if((typeof HTMLElement !== "undefined" && query instanceof HTMLElement) || query instanceof TableRegistry){
					match = TableRegistry.registry.matchElement(query);
					
					if(match){
						results.push(match);
					}
				}else if(Array.isArray(query)){
					query.forEach(function(item){
						results = results.concat(TableRegistry.registry.lookupTable(item));
					});
				}else {
					if(!silent){
						console.warn("Table Connection Error - Invalid Selector", query);
					}
				}
				
				return results;
			},
			
			matchElement(element){
				return TableRegistry.registry.tables.find(function(table){
					return element instanceof TableRegistry ? table === element : table.element === element;
				});
			}
		};

			
		static findTable(query){
			var results = TableRegistry.registry.lookupTable(query, true);
			return Array.isArray(results) && !results.length ? false : results;
		}
	}

	class ModuleBinder extends TableRegistry {
		
		static moduleBindings = {};
		static moduleExtensions = {};
		static modulesRegistered = false;
		
		static defaultModules = false;
		
		constructor(){
			super();
		}
		
		static initializeModuleBinder(defaultModules){
			if(!ModuleBinder.modulesRegistered){
				ModuleBinder.modulesRegistered = true;
				ModuleBinder._registerModules(coreModules, true);
				
				if(defaultModules){
					ModuleBinder._registerModules(defaultModules);
				}
			}
		}
		
		static _extendModule(name, property, values){
			if(ModuleBinder.moduleBindings[name]){
				var source = ModuleBinder.moduleBindings[name][property];
				
				if(source){
					if(typeof values == "object"){
						for(let key in values){
							source[key] = values[key];
						}
					}else {
						console.warn("Module Error - Invalid value type, it must be an object");
					}
				}else {
					console.warn("Module Error - property does not exist:", property);
				}
			}else {
				console.warn("Module Error - module does not exist:", name);
			}
		}
		
		static _registerModules(modules, core){
			var mods = Object.values(modules);
			
			if(core){
				mods.forEach((mod) => {
					mod.prototype.moduleCore = true;
				});
			}
			
			ModuleBinder._registerModule(mods);
		}
		
		static _registerModule(modules){
			if(!Array.isArray(modules)){
				modules = [modules];
			}
			
			modules.forEach((mod) => {
				ModuleBinder._registerModuleBinding(mod);
				ModuleBinder._registerModuleExtensions(mod);
			});
		}
		
		static _registerModuleBinding(mod){
			if(mod.moduleName){
				ModuleBinder.moduleBindings[mod.moduleName] = mod;
			}else {
				console.error("Unable to bind module, no moduleName defined", mod.moduleName);
			}
		}
		
		static _registerModuleExtensions(mod){
			var extensions = mod.moduleExtensions;
			
			if(mod.moduleExtensions){
				for (let modKey in extensions) {
					let ext = extensions[modKey];
					
					if(ModuleBinder.moduleBindings[modKey]){
						for (let propKey in ext) {
							ModuleBinder._extendModule(modKey, propKey, ext[propKey]);
						}
					}else {
						if(!ModuleBinder.moduleExtensions[modKey]){
							ModuleBinder.moduleExtensions[modKey] = {};
						}
						
						for (let propKey in ext) {
							if(!ModuleBinder.moduleExtensions[modKey][propKey]){
								ModuleBinder.moduleExtensions[modKey][propKey] = {};
							}

							Object.assign(ModuleBinder.moduleExtensions[modKey][propKey], ext[propKey]);
						}
					}
				}
			}

			ModuleBinder._extendModuleFromQueue(mod);
		}
		
		static _extendModuleFromQueue(mod){
			var extensions = ModuleBinder.moduleExtensions[mod.moduleName];
			
			if(extensions){
				for (let propKey in extensions) {
					ModuleBinder._extendModule(mod.moduleName, propKey, extensions[propKey]);
				}
			}
		}
		
		//ensure that module are bound to instantiated function
		_bindModules(){
			var orderedStartMods = [],
			orderedEndMods = [],
			unOrderedMods = [];
			
			this.modules = {};
			
			for(var name in ModuleBinder.moduleBindings){
				let mod = ModuleBinder.moduleBindings[name];
				let module = new mod(this);
				
				this.modules[name] = module;
				
				if(mod.prototype.moduleCore){
					this.modulesCore.push(module);
				}else {
					if(mod.moduleInitOrder){
						if(mod.moduleInitOrder < 0){
							orderedStartMods.push(module);
						}else {
							orderedEndMods.push(module);
						}
						
					}else {
						unOrderedMods.push(module);
					}
				}
			}
			
			orderedStartMods.sort((a, b) => a.moduleInitOrder > b.moduleInitOrder ? 1 : -1);
			orderedEndMods.sort((a, b) => a.moduleInitOrder > b.moduleInitOrder ? 1 : -1);
			
			this.modulesRegular = orderedStartMods.concat(unOrderedMods.concat(orderedEndMods));
		}
	}

	class Alert extends CoreFeature{
		constructor(table){
			super(table);
	        
			this.element = this._createAlertElement();
			this.msgElement = this._createMsgElement();
			this.type = null;
	        
			this.element.appendChild(this.msgElement);
		}
	    
		_createAlertElement(){
			var el = document.createElement("div");
			el.classList.add("tabulator-alert");
			return el;
		}
	    
		_createMsgElement(){
			var el = document.createElement("div");
			el.classList.add("tabulator-alert-msg");
			el.setAttribute("role", "alert");
			return el;
		}
	    
		_typeClass(){
			return "tabulator-alert-state-" + this.type;
		}
	    
		alert(content, type = "msg"){
			if(content){
				this.clear();

				this.dispatch("alert-show", type);
	            
				this.type = type;
	            
				while(this.msgElement.firstChild) this.msgElement.removeChild(this.msgElement.firstChild);
	            
				this.msgElement.classList.add(this._typeClass());
	            
				if(typeof content === "function"){
					content = content();
				}
	            
				if(content instanceof HTMLElement){
					this.msgElement.appendChild(content);
				}else {
					this.msgElement.innerHTML = content;
				}
	            
				this.table.element.appendChild(this.element);
			}
		}
	    
		clear(){
			this.dispatch("alert-hide", this.type);

			if(this.element.parentNode){
				this.element.parentNode.removeChild(this.element);
			}
	        
			this.msgElement.classList.remove(this._typeClass());
		}
	}

	class Tabulator extends ModuleBinder{

		//default setup options
		static defaultOptions = defaultOptions;

		static extendModule(){
			Tabulator.initializeModuleBinder();
			Tabulator._extendModule(...arguments);
		}

		static registerModule(){
			Tabulator.initializeModuleBinder();
			Tabulator._registerModule(...arguments);
		}

		constructor(element, options, modules){
			super();

			Tabulator.initializeModuleBinder(modules);

			this.options = {};
			
			this.columnManager = null; // hold Column Manager
			this.rowManager = null; //hold Row Manager
			this.footerManager = null; //holder Footer Manager
			this.alertManager = null; //hold Alert Manager
			this.vdomHoz  = null; //holder horizontal virtual dom
			this.externalEvents = null; //handle external event messaging
			this.eventBus = null; //handle internal event messaging
			this.interactionMonitor = false; //track user interaction
			this.browser = ""; //hold current browser type
			this.browserSlow = false; //handle reduced functionality for slower browsers
			this.browserMobile = false; //check if running on mobile, prevent resize cancelling edit on keyboard appearance
			this.rtl = false; //check if the table is in RTL mode
			this.originalElement = null; //hold original table element if it has been replaced
			
			this.componentFunctionBinder = new ComponentFunctionBinder(this); //bind component functions
			this.dataLoader = false; //bind component functions
			
			this.modules = {}; //hold all modules bound to this table
			this.modulesCore = []; //hold core modules bound to this table (for initialization purposes)
			this.modulesRegular = []; //hold regular modules bound to this table (for initialization purposes)
			
			this.deprecationAdvisor = new DeprecationAdvisor(this);
			this.optionsList = new OptionsList(this, "table constructor");

			this.dependencyRegistry = new DependencyRegistry(this);
			
			this.initialized = false;
			this.destroyed = false;
			
			if(this.initializeElement(element)){
				
				this.initializeCoreSystems(options);
				
				//delay table creation to allow event bindings immediately after the constructor
				setTimeout(() => {
					this._create();
				});
			}
			
			this.constructor.registry.register(this); //register table for inter-device communication
		}
		
		initializeElement(element){
			if(typeof HTMLElement !== "undefined" && element instanceof HTMLElement){
				this.element = element;
				return true;
			}else if(typeof element === "string"){
				this.element = document.querySelector(element);
				
				if(this.element){
					return true;
				}else {
					console.error("Tabulator Creation Error - no element found matching selector: ", element);
					return false;
				}
			}else {
				console.error("Tabulator Creation Error - Invalid element provided:", element);
				return false;
			}
		}
		
		initializeCoreSystems(options){
			this.columnManager = new ColumnManager(this);
			this.rowManager = new RowManager(this);
			this.footerManager = new FooterManager(this);
			this.dataLoader = new DataLoader(this);
			this.alertManager = new Alert(this);
			
			this._bindModules();
			
			this.options = this.optionsList.generate(Tabulator.defaultOptions, options);
			
			this._clearObjectPointers();
			
			this._mapDeprecatedFunctionality();
			
			this.externalEvents = new ExternalEventBus(this, this.options, this.options.debugEventsExternal);
			this.eventBus = new InternalEventBus(this.options.debugEventsInternal);
			
			this.interactionMonitor = new InteractionManager(this);
			
			this.dataLoader.initialize();
			this.footerManager.initialize();

			this.dependencyRegistry.initialize();
		}
		
		//convert deprecated functionality to new functions
		_mapDeprecatedFunctionality(){
			//all previously deprecated functionality removed in the 6.0 release
		}
		
		_clearSelection(){
			
			this.element.classList.add("tabulator-block-select");
			
			if (window.getSelection) {
				if (window.getSelection().empty) {  // Chrome
					window.getSelection().empty();
				} else if (window.getSelection().removeAllRanges) {  // Firefox
					window.getSelection().removeAllRanges();
				}
			} else if (document.selection) {  // IE?
				document.selection.empty();
			}
			
			this.element.classList.remove("tabulator-block-select");
		}
		
		//create table
		_create(){
			this.externalEvents.dispatch("tableBuilding");
			this.eventBus.dispatch("table-building");
			
			this._rtlCheck();
			
			this._buildElement();
			
			this._initializeTable();

			this.initialized = true;
			
			this._loadInitialData()
				.finally(() => {
					this.eventBus.dispatch("table-initialized");
					this.externalEvents.dispatch("tableBuilt");
				});	
		}
		
		_rtlCheck(){
			var style = window.getComputedStyle(this.element);
			
			switch(this.options.textDirection){
				case"auto":
					if(style.direction !== "rtl"){
						break;
					}
				
				case "rtl":
					this.element.classList.add("tabulator-rtl");
					this.rtl = true;
					break;
				
				case "ltr":
					this.element.classList.add("tabulator-ltr");
				
				default:
					this.rtl = false;
			}
		}
		
		//clear pointers to objects in default config object
		_clearObjectPointers(){
			this.options.columns = this.options.columns.slice(0);
			
			if(Array.isArray(this.options.data) && !this.options.reactiveData){
				this.options.data = this.options.data.slice(0);
			}
		}
		
		//build tabulator element
		_buildElement(){
			var element = this.element,
			options = this.options,
			newElement;
			
			if(element.tagName === "TABLE"){
				this.originalElement = this.element;
				newElement = document.createElement("div");
				
				//transfer attributes to new element
				var attributes = element.attributes;
				
				// loop through attributes and apply them on div
				for(var i in attributes){
					if(typeof attributes[i] == "object"){
						newElement.setAttribute(attributes[i].name, attributes[i].value);
					}
				}
				
				// replace table with div element
				element.parentNode.replaceChild(newElement, element);
				
				this.element = element = newElement;
			}
			
			element.classList.add("tabulator");
			element.setAttribute("role", "grid");
			
			//empty element
			while(element.firstChild) element.removeChild(element.firstChild);
			
			//set table height
			if(options.height){
				options.height = isNaN(options.height) ? options.height : options.height + "px";
				element.style.height = options.height;
			}
			
			//set table min height
			if(options.minHeight !== false){
				options.minHeight = isNaN(options.minHeight) ? options.minHeight : options.minHeight + "px";
				element.style.minHeight = options.minHeight;
			}
			
			//set table maxHeight
			if(options.maxHeight !== false){
				options.maxHeight = isNaN(options.maxHeight) ? options.maxHeight : options.maxHeight + "px";
				element.style.maxHeight = options.maxHeight;
			}
		}
		
		//initialize core systems and modules
		_initializeTable(){
			var element = this.element,
			options = this.options;
			
			this.interactionMonitor.initialize();
			
			this.columnManager.initialize();
			this.rowManager.initialize();
			
			this._detectBrowser();
			
			//initialize core modules
			this.modulesCore.forEach((mod) => {
				mod.initialize();
			});
			
			//build table elements
			element.appendChild(this.columnManager.getElement());
			element.appendChild(this.rowManager.getElement());
			
			if(options.footerElement){
				this.footerManager.activate();
			}
			
			if(options.autoColumns && options.data){
				
				this.columnManager.generateColumnsFromRowData(this.options.data);
			}
			
			//initialize regular modules
			this.modulesRegular.forEach((mod) => {
				mod.initialize();
			});
			
			this.columnManager.setColumns(options.columns);
			
			this.eventBus.dispatch("table-built");
		}
		
		_loadInitialData(){
			return this.dataLoader.load(this.options.data)
				.finally(() => {
					this.columnManager.verticalAlignHeaders();
				});		
		}
		
		//deconstructor
		destroy(){
			var element = this.element;
			
			this.destroyed = true;
			
			this.constructor.registry.deregister(this); //deregister table from inter-device communication
			
			this.eventBus.dispatch("table-destroy");
			
			//clear row data
			this.rowManager.destroy();
			
			//clear DOM
			while(element.firstChild) element.removeChild(element.firstChild);
			element.classList.remove("tabulator");

			this.externalEvents.dispatch("tableDestroyed");
		}
		
		_detectBrowser(){
			var ua = navigator.userAgent||navigator.vendor||window.opera;
			
			if(ua.indexOf("Trident") > -1){
				this.browser = "ie";
				this.browserSlow = true;
			}else if(ua.indexOf("Edge") > -1){
				this.browser = "edge";
				this.browserSlow = true;
			}else if(ua.indexOf("Firefox") > -1){
				this.browser = "firefox";
				this.browserSlow = false;
			}else if(ua.indexOf("Mac OS") > -1){
				this.browser = "safari";
				this.browserSlow = false;
			}else {
				this.browser = "other";
				this.browserSlow = false;
			}
			
			this.browserMobile = /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(ua)||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw-(n|u)|c55\/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do(c|p)o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(-|_)|g1 u|g560|gene|gf-5|g-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd-(m|p|t)|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c(-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac( |-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|-[a-w])|libw|lynx|m1-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk\/|se(c(-|0|1)|47|mc|nd|ri)|sgh-|shar|sie(-|m)|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel(i|m)|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i.test(ua.slice(0,4));
		}
		
		initGuard(func, msg){
			var stack, line;
			
			if(this.options.debugInitialization && !this.initialized){
				if(!func){
					stack = new Error().stack.split("\n");
					
					line = stack[0] == "Error" ? stack[2] : stack[1];
					
					if(line[0] == " "){
						func = line.trim().split(" ")[1].split(".")[1];
					}else {
						func = line.trim().split("@")[0];
					}
				}
				
				console.warn("Table Not Initialized - Calling the " + func + " function before the table is initialized may result in inconsistent behavior, Please wait for the `tableBuilt` event before calling this function." + (msg ? " " + msg : ""));
			}
			
			return this.initialized;
		}
		
		////////////////// Data Handling //////////////////
		//block table redrawing
		blockRedraw(){
			this.initGuard();

			this.eventBus.dispatch("redraw-blocking");
			
			this.rowManager.blockRedraw();
			this.columnManager.blockRedraw();

			this.eventBus.dispatch("redraw-blocked");
		}
		
		//restore table redrawing
		restoreRedraw(){
			this.initGuard();

			this.eventBus.dispatch("redraw-restoring");

			this.rowManager.restoreRedraw();
			this.columnManager.restoreRedraw();

			this.eventBus.dispatch("redraw-restored");
		}
		
		//load data
		setData(data, params, config){
			this.initGuard(false, "To set initial data please use the 'data' property in the table constructor.");
			
			return this.dataLoader.load(data, params, config, false);
		}
		
		//clear data
		clearData(){
			this.initGuard();
			
			this.dataLoader.blockActiveLoad();
			this.rowManager.clearData();
		}
		
		//get table data array
		getData(active){
			return this.rowManager.getData(active);
		}
		
		//get table data array count
		getDataCount(active){
			return this.rowManager.getDataCount(active);
		}
		
		//replace data, keeping table in position with same sort
		replaceData(data, params, config){
			this.initGuard();
			
			return this.dataLoader.load(data, params, config, true, true);
		}
		
		//update table data
		updateData(data){
			var responses = 0;
			
			this.initGuard();
			
			return new Promise((resolve, reject) => {
				this.dataLoader.blockActiveLoad();
				
				if(typeof data === "string"){
					data = JSON.parse(data);
				}
				
				if(data && data.length > 0){
					data.forEach((item) => {
						var row = this.rowManager.findRow(item[this.options.index]);
						
						if(row){
							responses++;
							
							row.updateData(item)
								.then(()=>{
									responses--;
								
									if(!responses){
										resolve();
									}
								})
								.catch((e) => {
									reject("Update Error - Unable to update row", item, e);
								});
						}else {
							reject("Update Error - Unable to find row", item);
						}
					});
				}else {
					console.warn("Update Error - No data provided");
					reject("Update Error - No data provided");
				}
			});
		}
		
		addData(data, pos, index){
			this.initGuard();
			
			return new Promise((resolve, reject) => {
				this.dataLoader.blockActiveLoad();
				
				if(typeof data === "string"){
					data = JSON.parse(data);
				}
				
				if(data){
					this.rowManager.addRows(data, pos, index)
						.then((rows) => {
							var output = [];
						
							rows.forEach(function(row){
								output.push(row.getComponent());
							});
						
							resolve(output);
						});
				}else {
					console.warn("Update Error - No data provided");
					reject("Update Error - No data provided");
				}
			});
		}
		
		//update table data
		updateOrAddData(data){
			var rows = [],
			responses = 0;
			
			this.initGuard();
			
			return new Promise((resolve, reject) => {
				this.dataLoader.blockActiveLoad();
				
				if(typeof data === "string"){
					data = JSON.parse(data);
				}
				
				if(data && data.length > 0){
					data.forEach((item) => {
						var row = this.rowManager.findRow(item[this.options.index]);
						
						responses++;
						
						if(row){
							row.updateData(item)
								.then(()=>{
									responses--;
									rows.push(row.getComponent());
								
									if(!responses){
										resolve(rows);
									}
								});
						}else {
							this.rowManager.addRows(item)
								.then((newRows)=>{
									responses--;
									rows.push(newRows[0].getComponent());
								
									if(!responses){
										resolve(rows);
									}
								});
						}
					});
				}else {
					console.warn("Update Error - No data provided");
					reject("Update Error - No data provided");
				}
			});
		}
		
		//get row object
		getRow(index){
			var row = this.rowManager.findRow(index);
			
			if(row){
				return row.getComponent();
			}else {
				console.warn("Find Error - No matching row found:", index);
				return false;
			}
		}
		
		//get row object
		getRowFromPosition(position){
			var row = this.rowManager.getRowFromPosition(position);
			
			if(row){
				return row.getComponent();
			}else {
				console.warn("Find Error - No matching row found:", position);
				return false;
			}
		}
		
		//delete row from table
		deleteRow(index){
			var foundRows = [];
			
			this.initGuard();
			
			if(!Array.isArray(index)){
				index = [index];
			}
			
			//find matching rows
			for(let item of index){
				let row = this.rowManager.findRow(item, true);
				
				if(row){
					foundRows.push(row);
				}else {
					console.error("Delete Error - No matching row found:", item);
					return Promise.reject("Delete Error - No matching row found");
				}
			}
			
			//sort rows into correct order to ensure smooth delete from table
			foundRows.sort((a, b) => {
				return this.rowManager.rows.indexOf(a) > this.rowManager.rows.indexOf(b) ? 1 : -1;
			});
			
			//delete rows
			foundRows.forEach((row) =>{
				row.delete();
			});
			
			this.rowManager.reRenderInPosition();
			
			return Promise.resolve();
		}
		
		//add row to table
		addRow(data, pos, index){
			this.initGuard();
			
			if(typeof data === "string"){
				data = JSON.parse(data);
			}
			
			return this.rowManager.addRows(data, pos, index, true)
				.then((rows)=>{
					return rows[0].getComponent();
				});
		}
		
		//update a row if it exists otherwise create it
		updateOrAddRow(index, data){
			var row = this.rowManager.findRow(index);
			
			this.initGuard();
			
			if(typeof data === "string"){
				data = JSON.parse(data);
			}
			
			if(row){
				return row.updateData(data)
					.then(()=>{
						return row.getComponent();
					});
			}else {
				return this.rowManager.addRows(data)
					.then((rows)=>{
						return rows[0].getComponent();
					});
			}
		}
		
		//update row data
		updateRow(index, data){
			var row = this.rowManager.findRow(index);
			
			this.initGuard();
			
			if(typeof data === "string"){
				data = JSON.parse(data);
			}
			
			if(row){
				return row.updateData(data)
					.then(()=>{
						return Promise.resolve(row.getComponent());
					});
			}else {
				console.warn("Update Error - No matching row found:", index);
				return Promise.reject("Update Error - No matching row found");
			}
		}
		
		//scroll to row in DOM
		scrollToRow(index, position, ifVisible){
			var row = this.rowManager.findRow(index);
			
			if(row){
				return this.rowManager.scrollToRow(row, position, ifVisible);
			}else {
				console.warn("Scroll Error - No matching row found:", index);
				return Promise.reject("Scroll Error - No matching row found");
			}
		}
		
		moveRow(from, to, after){
			var fromRow = this.rowManager.findRow(from);
			
			this.initGuard();
			
			if(fromRow){
				fromRow.moveToRow(to, after);
			}else {
				console.warn("Move Error - No matching row found:", from);
			}
		}
		
		getRows(active){
			return this.rowManager.getComponents(active);	
		}
		
		//get position of row in table
		getRowPosition(index){
			var row = this.rowManager.findRow(index);
			
			if(row){
				return row.getPosition();
			}else {
				console.warn("Position Error - No matching row found:", index);
				return false;
			}
		}
		
		/////////////// Column Functions  ///////////////
		setColumns(definition){
			this.initGuard(false, "To set initial columns please use the 'columns' property in the table constructor");
			
			this.columnManager.setColumns(definition);
		}
		
		getColumns(structured){
			return this.columnManager.getComponents(structured);
		}
		
		getColumn(field){
			var column = this.columnManager.findColumn(field);
			
			if(column){
				return column.getComponent();
			}else {
				console.warn("Find Error - No matching column found:", field);
				return false;
			}
		}
		
		getColumnDefinitions(){
			return this.columnManager.getDefinitionTree();
		}
		
		showColumn(field){
			var column = this.columnManager.findColumn(field);
			
			this.initGuard();
			
			if(column){
				column.show();
			}else {
				console.warn("Column Show Error - No matching column found:", field);
				return false;
			}
		}
		
		hideColumn(field){
			var column = this.columnManager.findColumn(field); 
			
			this.initGuard();
			
			if(column){
				column.hide();
			}else {
				console.warn("Column Hide Error - No matching column found:", field);
				return false;
			}
		}
		
		toggleColumn(field){
			var column = this.columnManager.findColumn(field);
			
			this.initGuard();
			
			if(column){
				if(column.visible){
					column.hide();
				}else {
					column.show();
				}
			}else {
				console.warn("Column Visibility Toggle Error - No matching column found:", field);
				return false;
			}
		}
		
		addColumn(definition, before, field){
			var column = this.columnManager.findColumn(field);
			
			this.initGuard();
			
			return this.columnManager.addColumn(definition, before, column)
				.then((column) => {
					return column.getComponent();
				});
		}
		
		deleteColumn(field){
			var column = this.columnManager.findColumn(field);
			
			this.initGuard();
			
			if(column){
				return column.delete();
			}else {
				console.warn("Column Delete Error - No matching column found:", field);
				return Promise.reject();
			}
		}
		
		updateColumnDefinition(field, definition){
			var column = this.columnManager.findColumn(field);
			
			this.initGuard();
			
			if(column){
				return column.updateDefinition(definition);
			}else {
				console.warn("Column Update Error - No matching column found:", field);
				return Promise.reject();
			}
		}
		
		moveColumn(from, to, after){
			var fromColumn = this.columnManager.findColumn(from),
			toColumn = this.columnManager.findColumn(to);
			
			this.initGuard();
			
			if(fromColumn){
				if(toColumn){
					this.columnManager.moveColumn(fromColumn, toColumn, after);
				}else {
					console.warn("Move Error - No matching column found:", toColumn);
				}
			}else {
				console.warn("Move Error - No matching column found:", from);
			}
		}
		
		//scroll to column in DOM
		scrollToColumn(field, position, ifVisible){
			return new Promise((resolve, reject) => {
				var column = this.columnManager.findColumn(field);
				
				if(column){
					return this.columnManager.scrollToColumn(column, position, ifVisible);
				}else {
					console.warn("Scroll Error - No matching column found:", field);
					return Promise.reject("Scroll Error - No matching column found");
				}
			});
		}
		
		//////////// General Public Functions ////////////
		//redraw list without updating data
		redraw(force){
			this.initGuard();

			this.columnManager.redraw(force);
			this.rowManager.redraw(force);
		}
		
		setHeight(height){
			this.options.height = isNaN(height) ? height : height + "px";
			this.element.style.height = this.options.height;
			this.rowManager.initializeRenderer();
			this.rowManager.redraw(true);
		}
		
		//////////////////// Event Bus ///////////////////
		
		on(key, callback){
			this.externalEvents.subscribe(key, callback);
		}
		
		off(key, callback){
			this.externalEvents.unsubscribe(key, callback);
		}
		
		dispatchEvent(){
			var args = Array.from(arguments);
			args.shift();
			
			this.externalEvents.dispatch(...arguments);
		}

		//////////////////// Alerts ///////////////////

		alert(contents, type){
			this.initGuard();

			this.alertManager.alert(contents, type);
		}

		clearAlert(){
			this.initGuard();

			this.alertManager.clear();
		}
		
		////////////// Extension Management //////////////
		modExists(plugin, required){
			if(this.modules[plugin]){
				return true;
			}else {
				if(required){
					console.error("Tabulator Module Not Installed: " + plugin);
				}
				return false;
			}
		}
		
		module(key){
			var mod = this.modules[key];
			
			if(!mod){
				console.error("Tabulator module not installed: " + key);
			}
			
			return mod;
		}
	}

	var defaultAccessors = {
		rownum:function(value, data, type, params, column, row){
			return row.getPosition();
		}
	};

	class Accessor extends Module{
		
		static moduleName = "accessor";

		//load defaults
		static accessors = defaultAccessors;

		constructor(table){
			super(table);

			this.allowedTypes = ["", "data", "download", "clipboard", "print", "htmlOutput"]; //list of accessor types

			this.registerColumnOption("accessor");
			this.registerColumnOption("accessorParams");
			this.registerColumnOption("accessorData");
			this.registerColumnOption("accessorDataParams");
			this.registerColumnOption("accessorDownload");
			this.registerColumnOption("accessorDownloadParams");
			this.registerColumnOption("accessorClipboard");
			this.registerColumnOption("accessorClipboardParams");
			this.registerColumnOption("accessorPrint");
			this.registerColumnOption("accessorPrintParams");
			this.registerColumnOption("accessorHtmlOutput");
			this.registerColumnOption("accessorHtmlOutputParams");
		}

		initialize(){
			this.subscribe("column-layout", this.initializeColumn.bind(this));
			this.subscribe("row-data-retrieve", this.transformRow.bind(this));
		}

		//initialize column accessor
		initializeColumn(column){
			var match = false,
			config = {};

			this.allowedTypes.forEach((type) => {
				var key = "accessor" + (type.charAt(0).toUpperCase() + type.slice(1)),
				accessor;

				if(column.definition[key]){
					accessor = this.lookupAccessor(column.definition[key]);

					if(accessor){
						match = true;

						config[key] = {
							accessor:accessor,
							params: column.definition[key + "Params"] || {},
						};
					}
				}
			});

			if(match){
				column.modules.accessor = config;
			}
		}

		lookupAccessor(value){
			var accessor = false;

			//set column accessor
			switch(typeof value){
				case "string":
					if(Accessor.accessors[value]){
						accessor = Accessor.accessors[value];
					}else {
						console.warn("Accessor Error - No such accessor found, ignoring: ", value);
					}
					break;

				case "function":
					accessor = value;
					break;
			}

			return accessor;
		}

		//apply accessor to row
		transformRow(row, type){
			var key = "accessor" + (type.charAt(0).toUpperCase() + type.slice(1)),
			rowComponent = row.getComponent();

			//clone data object with deep copy to isolate internal data from returned result
			var data = Helpers.deepClone(row.data || {});

			this.table.columnManager.traverse(function(column){
				var value, accessor, params, colComponent;

				if(column.modules.accessor){

					accessor = column.modules.accessor[key] || column.modules.accessor.accessor || false;

					if(accessor){
						value = column.getFieldValue(data);

						if(value != "undefined"){
							colComponent = column.getComponent();
							params = typeof accessor.params === "function" ? accessor.params(value, data, type, colComponent, rowComponent) : accessor.params;
							column.setFieldValue(data, accessor.accessor(value, data, type, params, colComponent, rowComponent));
						}
					}
				}
			});

			return data;
		}
	}

	var defaultConfig = {
		method: "GET",
	};

	function generateParamsList$1(data, prefix){
		var output = [];

		prefix = prefix || "";

		if(Array.isArray(data)){
			data.forEach((item, i) => {
				output = output.concat(generateParamsList$1(item, prefix ? prefix + "[" + i + "]" : i));
			});
		}else if (typeof data === "object"){
			for (var key in data){
				output = output.concat(generateParamsList$1(data[key], prefix ? prefix + "[" + key + "]" : key));
			}
		}else {
			output.push({key:prefix, value:data});
		}

		return output;
	}

	function serializeParams(params){
		var output = generateParamsList$1(params),
		encoded = [];

		output.forEach(function(item){
			encoded.push(encodeURIComponent(item.key) + "=" + encodeURIComponent(item.value));
		});

		return encoded.join("&");
	}

	function urlBuilder(url, config, params){
		if(url){
			if(params && Object.keys(params).length){
				if(!config.method || config.method.toLowerCase() == "get"){
					config.method = "get";

					url += (url.includes("?") ? "&" : "?") + serializeParams(params);
				}
			}
		}

		return url;
	}

	function defaultLoaderPromise(url, config, params){
		var contentType;

		return new Promise((resolve, reject) => {
			//set url
			url = this.urlGenerator.call(this.table, url, config, params);

			//set body content if not GET request
			if(config.method.toUpperCase() != "GET"){
				contentType = typeof this.table.options.ajaxContentType === "object" ?  this.table.options.ajaxContentType : this.contentTypeFormatters[this.table.options.ajaxContentType];
				if(contentType){

					for(var key in contentType.headers){
						if(!config.headers){
							config.headers = {};
						}

						if(typeof config.headers[key] === "undefined"){
							config.headers[key] = contentType.headers[key];
						}
					}

					config.body = contentType.body.call(this, url, config, params);

				}else {
					console.warn("Ajax Error - Invalid ajaxContentType value:", this.table.options.ajaxContentType);
				}
			}

			if(url){
				//configure headers
				if(typeof config.headers === "undefined"){
					config.headers = {};
				}

				if(typeof config.headers.Accept === "undefined"){
					config.headers.Accept = "application/json";
				}

				if(typeof config.headers["X-Requested-With"] === "undefined"){
					config.headers["X-Requested-With"] = "XMLHttpRequest";
				}

				if(typeof config.mode === "undefined"){
					config.mode = "cors";
				}

				if(config.mode == "cors"){
					if(typeof config.headers["Origin"] === "undefined"){
						config.headers["Origin"] = window.location.origin;
					}
	        
					if(typeof config.credentials === "undefined"){
						config.credentials = 'same-origin';
					}
				}else {
					if(typeof config.credentials === "undefined"){
						config.credentials = 'include';
					}
				}

				//send request
				fetch(url, config)
					.then((response)=>{
						if(response.ok) {
							response.json()
								.then((data)=>{
									resolve(data);
								}).catch((error)=>{
									reject(error);
									console.warn("Ajax Load Error - Invalid JSON returned", error);
								});
						}else {
							console.error("Ajax Load Error - Connection Error: " + response.status, response.statusText);
							reject(response);
						}
					})
					.catch((error)=>{
						console.error("Ajax Load Error - Connection Error: ", error);
						reject(error);
					});
			}else {
				console.warn("Ajax Load Error - No URL Set");
				resolve([]);
			}
		});
	}

	function generateParamsList(data, prefix){
		var output = [];

		prefix = prefix || "";

		if(Array.isArray(data)){
			data.forEach((item, i) => {
				output = output.concat(generateParamsList(item, prefix ? prefix + "[" + i + "]" : i));
			});
		}else if (typeof data === "object"){
			for (var key in data){
				output = output.concat(generateParamsList(data[key], prefix ? prefix + "[" + key + "]" : key));
			}
		}else {
			output.push({key:prefix, value:data});
		}

		return output;
	}

	var defaultContentTypeFormatters = {
		"json":{
			headers:{
				'Content-Type': 'application/json',
			},
			body:function(url, config, params){
				return JSON.stringify(params);
			},
		},
		"form":{
			headers:{
			},
			body:function(url, config, params){

				var output = generateParamsList(params),
				form = new FormData();

				output.forEach(function(item){
					form.append(item.key, item.value);
				});

				return form;
			},
		},
	};

	class Ajax extends Module{

		static moduleName = "ajax";

		//load defaults
		static defaultConfig = defaultConfig;
		static defaultURLGenerator = urlBuilder;
		static defaultLoaderPromise = defaultLoaderPromise;
		static contentTypeFormatters = defaultContentTypeFormatters;
		
		constructor(table){
			super(table);
			
			this.config = {}; //hold config object for ajax request
			this.url = ""; //request URL
			this.urlGenerator = false;
			this.params = false; //request parameters
			
			this.loaderPromise = false;
			
			this.registerTableOption("ajaxURL", false); //url for ajax loading
			this.registerTableOption("ajaxURLGenerator", false);
			this.registerTableOption("ajaxParams", {});  //params for ajax loading
			this.registerTableOption("ajaxConfig", "get"); //ajax request type
			this.registerTableOption("ajaxContentType", "form"); //ajax request type
			this.registerTableOption("ajaxRequestFunc", false); //promise function
			
			this.registerTableOption("ajaxRequesting", function(){});
			this.registerTableOption("ajaxResponse", false);
			
			this.contentTypeFormatters = Ajax.contentTypeFormatters;
		}
		
		//initialize setup options
		initialize(){
			this.loaderPromise = this.table.options.ajaxRequestFunc || Ajax.defaultLoaderPromise;
			this.urlGenerator = this.table.options.ajaxURLGenerator || Ajax.defaultURLGenerator;
			
			if(this.table.options.ajaxURL){
				this.setUrl(this.table.options.ajaxURL);
			}


			this.setDefaultConfig(this.table.options.ajaxConfig);
			
			this.registerTableFunction("getAjaxUrl", this.getUrl.bind(this));
			
			this.subscribe("data-loading", this.requestDataCheck.bind(this));
			this.subscribe("data-params", this.requestParams.bind(this));
			this.subscribe("data-load", this.requestData.bind(this));
		}
		
		requestParams(data, config, silent, params){
			var ajaxParams = this.table.options.ajaxParams;
			
			if(ajaxParams){
				if(typeof ajaxParams === "function"){
					ajaxParams = ajaxParams.call(this.table);
				}
				
				params = Object.assign(Object.assign({}, ajaxParams), params);
			}		
			
			return params;
		}
		
		requestDataCheck(data, params, config, silent){
			return !!((!data && this.url) || typeof data === "string");
		}
		
		requestData(url, params, config, silent, previousData){
			var ajaxConfig;
			
			if(!previousData && this.requestDataCheck(url)){
				if(url){
					this.setUrl(url);
				}
				
				ajaxConfig = this.generateConfig(config);
				
				return this.sendRequest(this.url, params, ajaxConfig);
			}else {
				return previousData;
			}
		}
		
		setDefaultConfig(config = {}){
			this.config = Object.assign({}, Ajax.defaultConfig);

			if(typeof config == "string"){
				this.config.method = config;
			}else {
				Object.assign(this.config, config);
			}
		}
		
		//load config object
		generateConfig(config = {}){
			var ajaxConfig = Object.assign({}, this.config);
			
			if(typeof config == "string"){
				ajaxConfig.method = config;
			}else {
				Object.assign(ajaxConfig, config);
			}
			
			return ajaxConfig;
		}
		
		//set request url
		setUrl(url){
			this.url = url;
		}
		
		//get request url
		getUrl(){
			return this.url;
		}
		
		//send ajax request
		sendRequest(url, params, config){
			if(this.table.options.ajaxRequesting.call(this.table, url, params) !== false){
				return this.loaderPromise(url, config, params)
					.then((data)=>{
						if(this.table.options.ajaxResponse){
							data = this.table.options.ajaxResponse.call(this.table, url, params, data);
						}
					
						return data;
					});
			}else {
				return Promise.reject();
			}
		}
	}

	var defaultPasteActions = {
		replace:function(data){
			return this.table.setData(data);
		},
		update:function(data){
			return this.table.updateOrAddData(data);
		},
		insert:function(data){
			return this.table.addData(data);
		},
	};

	var defaultPasteParsers = {
		table:function(clipboard){
			var data = [],
			headerFindSuccess = true,
			columns = this.table.columnManager.columns,
			columnMap = [],
			rows = [];
			
			//get data from clipboard into array of columns and rows.
			clipboard = clipboard.split("\n");
			
			clipboard.forEach(function(row){
				data.push(row.split("\t"));
			});
			
			if(data.length && !(data.length === 1 && data[0].length < 2)){
				
				//check if headers are present by title
				data[0].forEach(function(value){
					var column = columns.find(function(column){
						return value && column.definition.title && value.trim() && column.definition.title.trim() === value.trim();
					});
					
					if(column){
						columnMap.push(column);
					}else {
						headerFindSuccess = false;
					}
				});
				
				//check if column headers are present by field
				if(!headerFindSuccess){
					headerFindSuccess = true;
					columnMap = [];
					
					data[0].forEach(function(value){
						var column = columns.find(function(column){
							return value && column.field && value.trim() && column.field.trim() === value.trim();
						});
						
						if(column){
							columnMap.push(column);
						}else {
							headerFindSuccess = false;
						}
					});
					
					if(!headerFindSuccess){
						columnMap = this.table.columnManager.columnsByIndex;
					}
				}
				
				//remove header row if found
				if(headerFindSuccess){
					data.shift();
				}
				
				data.forEach(function(item){
					var row = {};
					
					item.forEach(function(value, i){
						if(columnMap[i]){
							row[columnMap[i].field] = value;
						}
					});
					
					rows.push(row);
				});
				
				return rows;
			}else {
				return false;
			}
		},
	};

	var bindings$2 = {
		copyToClipboard:["ctrl + 67", "meta + 67"],
	};

	var actions$2 = {
		copyToClipboard:function(e){
			if(!this.table.modules.edit.currentCell){
				if(this.table.modExists("clipboard", true)){
					this.table.modules.clipboard.copy(false, true);
				}
			}
		},
	};

	var extensions$4 = {
		keybindings:{
			bindings:bindings$2,
			actions:actions$2
		},
	};

	class Clipboard extends Module{

		static moduleName = "clipboard";
		static moduleExtensions = extensions$4;

		//load defaults
		static pasteActions = defaultPasteActions;
		static pasteParsers = defaultPasteParsers;

		constructor(table){
			super(table);

			this.mode = true;
			this.pasteParser = function(){};
			this.pasteAction = function(){};
			this.customSelection = false;
			this.rowRange = false;
			this.blocked = true; //block copy actions not originating from this command

			this.registerTableOption("clipboard", false); //enable clipboard
			this.registerTableOption("clipboardCopyStyled", true); //formatted table data
			this.registerTableOption("clipboardCopyConfig", false); //clipboard config
			this.registerTableOption("clipboardCopyFormatter", false); //DEPRECATED - REMOVE in 5.0
			this.registerTableOption("clipboardCopyRowRange", "active"); //restrict clipboard to visible rows only
			this.registerTableOption("clipboardPasteParser", "table"); //convert pasted clipboard data to rows
			this.registerTableOption("clipboardPasteAction", "insert"); //how to insert pasted data into the table

			this.registerColumnOption("clipboard");
			this.registerColumnOption("titleClipboard");
		}

		initialize(){
			this.mode = this.table.options.clipboard;

			this.rowRange = this.table.options.clipboardCopyRowRange;

			if(this.mode === true || this.mode === "copy"){
				this.table.element.addEventListener("copy", (e) => {
					var plain, html, list;

					if(!this.blocked){
						e.preventDefault();

						if(this.customSelection){
							plain = this.customSelection;

							if(this.table.options.clipboardCopyFormatter){
								plain = this.table.options.clipboardCopyFormatter("plain", plain);
							}
						}else {

							list = this.table.modules.export.generateExportList(this.table.options.clipboardCopyConfig, this.table.options.clipboardCopyStyled, this.rowRange, "clipboard");

							html = this.table.modules.export.generateHTMLTable(list);
							plain = html ? this.generatePlainContent(list) : "";

							if(this.table.options.clipboardCopyFormatter){
								plain = this.table.options.clipboardCopyFormatter("plain", plain);
								html = this.table.options.clipboardCopyFormatter("html", html);
							}
						}

						if (window.clipboardData && window.clipboardData.setData) {
							window.clipboardData.setData('Text', plain);
						} else if (e.clipboardData && e.clipboardData.setData) {
							e.clipboardData.setData('text/plain', plain);
							if(html){
								e.clipboardData.setData('text/html', html);
							}
						} else if (e.originalEvent && e.originalEvent.clipboardData.setData) {
							e.originalEvent.clipboardData.setData('text/plain', plain);
							if(html){
								e.originalEvent.clipboardData.setData('text/html', html);
							}
						}

						this.dispatchExternal("clipboardCopied", plain, html);

						this.reset();
					}
				});
			}

			if(this.mode === true || this.mode === "paste"){
				this.table.element.addEventListener("paste", (e) => {
					this.paste(e);
				});
			}

			this.setPasteParser(this.table.options.clipboardPasteParser);
			this.setPasteAction(this.table.options.clipboardPasteAction);

			this.registerTableFunction("copyToClipboard", this.copy.bind(this));
		}

		reset(){
			this.blocked = true;
			this.customSelection = false;
		}

		generatePlainContent (list) {
			var output = [];

			list.forEach((row) => {
				var rowData = [];

				row.columns.forEach((col) => {
					var value = "";

					if(col){

						if(row.type === "group"){
							col.value = col.component.getKey();
						}

						if(col.value === null){
							value = "";
						}else {
							switch(typeof col.value){
								case "object":
									value = JSON.stringify(col.value);
									break;

								case "undefined":
									value = "";
									break;

								default:
									value = col.value;
							}
						}
					}

					rowData.push(value);
				});

				output.push(rowData.join("\t"));
			});

			return output.join("\n");
		}

		copy (range, internal) {
			var sel, textRange;
			this.blocked = false;
			this.customSelection = false;
		

			if (this.mode === true || this.mode === "copy") {

				this.rowRange = range || this.table.options.clipboardCopyRowRange;

				if (typeof window.getSelection != "undefined" && typeof document.createRange != "undefined") {
					range = document.createRange();
					range.selectNodeContents(this.table.element);
					sel = window.getSelection();

					if (sel.toString() && internal) {
						this.customSelection = sel.toString();
					}

					sel.removeAllRanges();
					sel.addRange(range);
				} else if (typeof document.selection != "undefined" && typeof document.body.createTextRange != "undefined") {
					textRange = document.body.createTextRange();
					textRange.moveToElementText(this.table.element);
					textRange.select();
				}

				document.execCommand('copy');

				if (sel) {
					sel.removeAllRanges();
				}
			}
		}

		//PASTE EVENT HANDLING
		setPasteAction(action){

			switch(typeof action){
				case "string":
					this.pasteAction = Clipboard.pasteActions[action];

					if(!this.pasteAction){
						console.warn("Clipboard Error - No such paste action found:", action);
					}
					break;

				case "function":
					this.pasteAction = action;
					break;
			}
		}

		setPasteParser(parser){
			switch(typeof parser){
				case "string":
					this.pasteParser = Clipboard.pasteParsers[parser];

					if(!this.pasteParser){
						console.warn("Clipboard Error - No such paste parser found:", parser);
					}
					break;

				case "function":
					this.pasteParser = parser;
					break;
			}
		}

		paste(e){
			var data, rowData, rows;

			if(this.checkPasteOrigin(e)){

				data = this.getPasteData(e);

				rowData = this.pasteParser.call(this, data);

				if(rowData){
					e.preventDefault();

					if(this.table.modExists("mutator")){
						rowData = this.mutateData(rowData);
					}

					rows = this.pasteAction.call(this, rowData);

					this.dispatchExternal("clipboardPasted", data, rowData, rows);
				}else {
					this.dispatchExternal("clipboardPasteError", data);
				}
			}
		}

		mutateData(data){
			var output = [];

			if(Array.isArray(data)){
				data.forEach((row) => {
					output.push(this.table.modules.mutator.transformRow(row, "clipboard"));
				});
			}else {
				output = data;
			}

			return output;
		}


		checkPasteOrigin(e){
			var valid = true;
			var blocked = this.confirm("clipboard-paste", [e]);

			if(blocked || !["DIV", "SPAN"].includes(e.target.tagName)){
				valid = false;
			}

			return valid;
		}

		getPasteData(e){
			var data;

			if (window.clipboardData && window.clipboardData.getData) {
				data = window.clipboardData.getData('Text');
			} else if (e.clipboardData && e.clipboardData.getData) {
				data = e.clipboardData.getData('text/plain');
			} else if (e.originalEvent && e.originalEvent.clipboardData.getData) {
				data = e.originalEvent.clipboardData.getData('text/plain');
			}

			return data;
		}
	}

	class CalcComponent{
		constructor (row){
			this._row = row;

			return new Proxy(this, {
				get: function(target, name, receiver) {
					if (typeof target[name] !== "undefined") {
						return target[name];
					}else {
						return target._row.table.componentFunctionBinder.handle("row", target._row, name);
					}
				}
			});
		}

		getData(transform){
			return this._row.getData(transform);
		}

		getElement(){
			return this._row.getElement();
		}

		getTable(){
			return this._row.table;
		}

		getCells(){
			var cells = [];

			this._row.getCells().forEach(function(cell){
				cells.push(cell.getComponent());
			});

			return cells;
		}

		getCell(column){
			var cell = this._row.getCell(column);
			return cell ? cell.getComponent() : false;
		}

		_getSelf(){
			return this._row;
		}
	}

	var defaultCalculations = {
		"avg":function(values, data, calcParams){
			var output = 0,
			precision = typeof calcParams.precision !== "undefined" ? calcParams.precision : 2;

			if(values.length){
				output = values.reduce(function(sum, value){
					return Number(sum) + Number(value);
				});

				output = output / values.length;

				output = precision !== false ? output.toFixed(precision) : output;
			}

			return parseFloat(output).toString();
		},
		"max":function(values, data, calcParams){
			var output = null,
			precision = typeof calcParams.precision !== "undefined" ? calcParams.precision : false;

			values.forEach(function(value){

				value = Number(value);

				if(value > output || output === null){
					output = value;
				}
			});

			return output !== null ? (precision !== false ? output.toFixed(precision) : output) : "";
		},
		"min":function(values, data, calcParams){
			var output = null,
			precision = typeof calcParams.precision !== "undefined" ? calcParams.precision : false;

			values.forEach(function(value){

				value = Number(value);

				if(value < output || output === null){
					output = value;
				}
			});

			return output !== null ? (precision !== false ? output.toFixed(precision) : output) : "";
		},
		"sum":function(values, data, calcParams){
			var output = 0,
			precision = typeof calcParams.precision !== "undefined" ? calcParams.precision : false;

			if(values.length){
				values.forEach(function(value){
					value = Number(value);

					output += !isNaN(value) ? Number(value) : 0;
				});
			}

			return precision !== false ? output.toFixed(precision) : output;
		},
		"concat":function(values, data, calcParams){
			var output = 0;

			if(values.length){
				output = values.reduce(function(sum, value){
					return String(sum) + String(value);
				});
			}

			return output;
		},
		"count":function(values, data, calcParams){
			var output = 0;

			if(values.length){
				values.forEach(function(value){
					if(value){
						output ++;
					}
				});
			}

			return output;
		},
		"unique":function(values, data, calcParams){
			var unique = values.filter((value, index) => {
				return (values || value === 0) && values.indexOf(value) === index;
			});

			return unique.length;
		},
	};

	class ColumnCalcs extends Module{

		static moduleName = "columnCalcs";

		//load defaults
		static calculations = defaultCalculations;
		
		constructor(table){
			super(table);
			
			this.topCalcs = [];
			this.botCalcs = [];
			this.genColumn = false;
			this.topElement = this.createElement();
			this.botElement = this.createElement();
			this.topRow = false;
			this.botRow = false;
			this.topInitialized = false;
			this.botInitialized = false;
			
			this.blocked = false;
			this.recalcAfterBlock = false;
			
			this.registerTableOption("columnCalcs", true);
			
			this.registerColumnOption("topCalc");
			this.registerColumnOption("topCalcParams");
			this.registerColumnOption("topCalcFormatter");
			this.registerColumnOption("topCalcFormatterParams");
			this.registerColumnOption("bottomCalc");
			this.registerColumnOption("bottomCalcParams");
			this.registerColumnOption("bottomCalcFormatter");
			this.registerColumnOption("bottomCalcFormatterParams");
		}
		
		createElement (){
			var el = document.createElement("div");
			el.classList.add("tabulator-calcs-holder");
			return el;
		}
		
		initialize(){
			this.genColumn = new Column({field:"value"}, this);
			
			this.subscribe("cell-value-changed", this.cellValueChanged.bind(this));
			this.subscribe("column-init", this.initializeColumnCheck.bind(this));
			this.subscribe("row-deleted", this.rowsUpdated.bind(this));
			this.subscribe("scroll-horizontal", this.scrollHorizontal.bind(this));
			this.subscribe("row-added", this.rowsUpdated.bind(this));
			this.subscribe("column-moved", this.recalcActiveRows.bind(this));
			this.subscribe("column-add", this.recalcActiveRows.bind(this));
			this.subscribe("data-refreshed", this.recalcActiveRowsRefresh.bind(this));
			this.subscribe("table-redraw", this.tableRedraw.bind(this));
			this.subscribe("rows-visible", this.visibleRows.bind(this));
			this.subscribe("scrollbar-vertical", this.adjustForScrollbar.bind(this));
			
			this.subscribe("redraw-blocked", this.blockRedraw.bind(this));
			this.subscribe("redraw-restored", this.restoreRedraw.bind(this));

			this.subscribe("table-redrawing", this.resizeHolderWidth.bind(this));
			this.subscribe("column-resized", this.resizeHolderWidth.bind(this));
			this.subscribe("column-show", this.resizeHolderWidth.bind(this));
			this.subscribe("column-hide", this.resizeHolderWidth.bind(this));
			
			this.registerTableFunction("getCalcResults", this.getResults.bind(this));
			this.registerTableFunction("recalc", this.userRecalc.bind(this));


			this.resizeHolderWidth();
		}

		resizeHolderWidth(){
			this.topElement.style.minWidth = this.table.columnManager.headersElement.offsetWidth + "px";
		}

		
		tableRedraw(force){
			this.recalc(this.table.rowManager.activeRows);
			
			if(force){
				this.redraw();
			}
		}
		
		blockRedraw(){
			this.blocked = true;
			this.recalcAfterBlock = false;
		}
		
		
		restoreRedraw(){
			this.blocked = false;
			
			if(this.recalcAfterBlock){
				this.recalcAfterBlock = false;
				this.recalcActiveRowsRefresh();
			}
		}
		
		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////
		userRecalc(){
			this.recalc(this.table.rowManager.activeRows);
		}
		
		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////
		
		blockCheck(){
			if(this.blocked){
				this.recalcAfterBlock = true;
			}
			
			return this.blocked;
		}
		
		visibleRows(viewable, rows){
			if(this.topRow){
				rows.unshift(this.topRow);
			}
			
			if(this.botRow){
				rows.push(this.botRow);
			}
			
			return rows;
		}
		
		rowsUpdated(row){
			if(this.table.options.groupBy){
				this.recalcRowGroup(row);
			}else {
				this.recalcActiveRows();
			}
		}
		
		recalcActiveRowsRefresh(){
			if(this.table.options.groupBy && this.table.options.dataTreeStartExpanded && this.table.options.dataTree){
				this.recalcAll();
			}else {
				this.recalcActiveRows();
			}
		}
		
		recalcActiveRows(){
			this.recalc(this.table.rowManager.activeRows);
		}
		
		cellValueChanged(cell){
			if(cell.column.definition.topCalc || cell.column.definition.bottomCalc){
				if(this.table.options.groupBy){
					if(this.table.options.columnCalcs == "table" || this.table.options.columnCalcs == "both"){
						this.recalcActiveRows();
					}
					
					if(this.table.options.columnCalcs != "table"){
						this.recalcRowGroup(cell.row);
					}
				}else {
					this.recalcActiveRows();
				}
			}
		}
		
		initializeColumnCheck(column){
			if(column.definition.topCalc || column.definition.bottomCalc){
				this.initializeColumn(column);
			}
		}
		
		//initialize column calcs
		initializeColumn(column){
			var def = column.definition;
			
			var config = {
				topCalcParams:def.topCalcParams || {},
				botCalcParams:def.bottomCalcParams || {},
			};
			
			if(def.topCalc){
				
				switch(typeof def.topCalc){
					case "string":
						if(ColumnCalcs.calculations[def.topCalc]){
							config.topCalc = ColumnCalcs.calculations[def.topCalc];
						}else {
							console.warn("Column Calc Error - No such calculation found, ignoring: ", def.topCalc);
						}
						break;
					
					case "function":
						config.topCalc = def.topCalc;
						break;
					
				}
				
				if(config.topCalc){
					column.modules.columnCalcs = config;
					this.topCalcs.push(column);
					
					if(this.table.options.columnCalcs != "group"){
						this.initializeTopRow();
					}
				}
				
			}
			
			if(def.bottomCalc){
				switch(typeof def.bottomCalc){
					case "string":
						if(ColumnCalcs.calculations[def.bottomCalc]){
							config.botCalc = ColumnCalcs.calculations[def.bottomCalc];
						}else {
							console.warn("Column Calc Error - No such calculation found, ignoring: ", def.bottomCalc);
						}
						break;
					
					case "function":
						config.botCalc = def.bottomCalc;
						break;
					
				}
				
				if(config.botCalc){
					column.modules.columnCalcs = config;
					this.botCalcs.push(column);
					
					if(this.table.options.columnCalcs != "group"){
						this.initializeBottomRow();
					}
				}
			}
			
		}
		
		//dummy functions to handle being mock column manager
		registerColumnField(){}
		
		removeCalcs(){
			var changed = false;
			
			if(this.topInitialized){
				this.topInitialized = false;
				this.topElement.parentNode.removeChild(this.topElement);
				changed = true;
			}
			
			if(this.botInitialized){
				this.botInitialized = false;
				this.footerRemove(this.botElement);
				changed = true;
			}
			
			if(changed){
				this.table.rowManager.adjustTableSize();
			}
		}
		
		reinitializeCalcs(){
			if(this.topCalcs.length){
				this.initializeTopRow();
			}

			if(this.botCalcs.length){
				this.initializeBottomRow();
			}
		}
		
		initializeTopRow(){
			var	fragment = document.createDocumentFragment();
			
			if(!this.topInitialized){

				fragment.appendChild(document.createElement("br"));
				fragment.appendChild(this.topElement);

				this.table.columnManager.getContentsElement().insertBefore(fragment, this.table.columnManager.headersElement.nextSibling);
				this.topInitialized = true;
			}
		}
		
		initializeBottomRow(){
			if(!this.botInitialized){
				this.footerPrepend(this.botElement);
				this.botInitialized = true;
			}
		}
		
		scrollHorizontal(left){
			if(this.botInitialized && this.botRow){
				this.botElement.scrollLeft = left;
			}
		}
		
		recalc(rows){
			var data, row;
			
			if(!this.blockCheck()){
				if(this.topInitialized || this.botInitialized){
					data = this.rowsToData(rows);
					
					if(this.topInitialized){
						if(this.topRow){
							this.topRow.deleteCells();
						}
						
						row = this.generateRow("top", data);
						this.topRow = row;
						while(this.topElement.firstChild) this.topElement.removeChild(this.topElement.firstChild);
						this.topElement.appendChild(row.getElement());
						row.initialize(true);
					}
					
					if(this.botInitialized){
						if(this.botRow){
							this.botRow.deleteCells();
						}
						
						row = this.generateRow("bottom", data);
						this.botRow = row;
						while(this.botElement.firstChild) this.botElement.removeChild(this.botElement.firstChild);
						this.botElement.appendChild(row.getElement());
						row.initialize(true);
					}
					
					this.table.rowManager.adjustTableSize();
					
					//set resizable handles
					if(this.table.modExists("frozenColumns")){
						this.table.modules.frozenColumns.layout();
					}
				}
			}
		}
		
		recalcRowGroup(row){
			this.recalcGroup(this.table.modules.groupRows.getRowGroup(row));
		}
		
		recalcAll(){
			if(this.topCalcs.length || this.botCalcs.length){
				if(this.table.options.columnCalcs !== "group"){
					this.recalcActiveRows();
				}
				
				if(this.table.options.groupBy && this.table.options.columnCalcs !== "table"){
					
					var groups = this.table.modules.groupRows.getChildGroups();
					
					groups.forEach((group) => {
						this.recalcGroup(group);
					});
				}
			}
		}
		
		recalcGroup(group){
			var data, rowData;
			
			if(!this.blockCheck()){
				if(group){
					if(group.calcs){
						if(group.calcs.bottom){
							data = this.rowsToData(group.rows);
							rowData = this.generateRowData("bottom", data);
							
							group.calcs.bottom.updateData(rowData);
							group.calcs.bottom.reinitialize();
						}
						
						if(group.calcs.top){
							data = this.rowsToData(group.rows);
							rowData = this.generateRowData("top", data);
							
							group.calcs.top.updateData(rowData);
							group.calcs.top.reinitialize();
						}
					}
				}
			}
		}
		
		//generate top stats row
		generateTopRow(rows){
			return this.generateRow("top", this.rowsToData(rows));
		}
		//generate bottom stats row
		generateBottomRow(rows){
			return this.generateRow("bottom", this.rowsToData(rows));
		}
		
		rowsToData(rows){
			var data = [],
			hasDataTreeColumnCalcs = this.table.options.dataTree && this.table.options.dataTreeChildColumnCalcs,
			dataTree = this.table.modules.dataTree;

			rows.forEach((row) => {
				data.push(row.getData());

				if(hasDataTreeColumnCalcs && row.modules.dataTree?.open){
					this.rowsToData(dataTree.getFilteredTreeChildren(row)).forEach(dataRow =>{
						data.push(row);
					});
				}
			});
			return data;
		}
		
		//generate stats row
		generateRow(pos, data){
			var rowData = this.generateRowData(pos, data),
			row;
			
			if(this.table.modExists("mutator")){
				this.table.modules.mutator.disable();
			}
			
			row = new Row(rowData, this, "calc");
			
			if(this.table.modExists("mutator")){
				this.table.modules.mutator.enable();
			}
			
			row.getElement().classList.add("tabulator-calcs", "tabulator-calcs-" + pos);
			
			row.component = false;
			
			row.getComponent = () => {
				if(!row.component){
					row.component = new CalcComponent(row);
				}
				
				return row.component;
			};
			
			row.generateCells = () => {
				
				var cells = [];
				
				this.table.columnManager.columnsByIndex.forEach((column) => {
					
					//set field name of mock column
					this.genColumn.setField(column.getField());
					this.genColumn.hozAlign = column.hozAlign;
					
					if(column.definition[pos + "CalcFormatter"] && this.table.modExists("format")){
						this.genColumn.modules.format = {
							formatter: this.table.modules.format.lookupFormatter(column.definition[pos + "CalcFormatter"]),
							params: column.definition[pos + "CalcFormatterParams"] || {},
						};
					}else {
						this.genColumn.modules.format = {
							formatter: this.table.modules.format.lookupFormatter("plaintext"),
							params:{}
						};
					}
					
					//ensure css class definition is replicated to calculation cell
					this.genColumn.definition.cssClass = column.definition.cssClass;
					
					//generate cell and assign to correct column
					var cell = new Cell(this.genColumn, row);
					cell.getElement();
					cell.column = column;
					cell.setWidth();
					
					column.cells.push(cell);
					cells.push(cell);
					
					if(!column.visible){
						cell.hide();
					}
				});
				
				row.cells = cells;
			};
			
			return row;
		}
		
		//generate stats row
		generateRowData(pos, data){
			var rowData = {},
			calcs = pos == "top" ? this.topCalcs : this.botCalcs,
			type = pos == "top" ? "topCalc" : "botCalc",
			params, paramKey;
			
			calcs.forEach(function(column){
				var values = [];
				
				if(column.modules.columnCalcs && column.modules.columnCalcs[type]){
					data.forEach(function(item){
						values.push(column.getFieldValue(item));
					});
					
					paramKey = type + "Params";
					params = typeof column.modules.columnCalcs[paramKey] === "function" ? column.modules.columnCalcs[paramKey](values, data) : column.modules.columnCalcs[paramKey];
					
					column.setFieldValue(rowData, column.modules.columnCalcs[type](values, data, params));
				}
			});
			
			return rowData;
		}
		
		hasTopCalcs(){
			return	!!(this.topCalcs.length);
		}
		
		hasBottomCalcs(){
			return	!!(this.botCalcs.length);
		}
		
		//handle table redraw
		redraw(){
			if(this.topRow){
				this.topRow.normalizeHeight(true);
			}
			if(this.botRow){
				this.botRow.normalizeHeight(true);
			}
		}
		
		//return the calculated
		getResults(){
			var results = {},
			groups;
			
			if(this.table.options.groupBy && this.table.modExists("groupRows")){
				groups = this.table.modules.groupRows.getGroups(true);
				
				groups.forEach((group) => {
					results[group.getKey()] = this.getGroupResults(group);
				});
			}else {
				results = {
					top: this.topRow ? this.topRow.getData() : {},
					bottom: this.botRow ? this.botRow.getData() : {},
				};
			}
			
			return results;
		}
		
		//get results from a group
		getGroupResults(group){
			var groupObj = group._getSelf(),
			subGroups = group.getSubGroups(),
			subGroupResults = {},
			results = {};
			
			subGroups.forEach((subgroup) => {
				subGroupResults[subgroup.getKey()] = this.getGroupResults(subgroup);
			});
			
			results = {
				top: groupObj.calcs.top ? groupObj.calcs.top.getData() : {},
				bottom: groupObj.calcs.bottom ? groupObj.calcs.bottom.getData() : {},
				groups: subGroupResults,
			};
			
			return results;
		}
		
		adjustForScrollbar(width){
			if(this.botRow){
				if(this.table.rtl){
					this.botElement.style.paddingLeft = width + "px";
				}else {
					this.botElement.style.paddingRight = width + "px";
				}
			}
		}
	}

	class DataTree extends Module{

		static moduleName = "dataTree";

		constructor(table){
			super(table);

			this.indent = 10;
			this.field = "";
			this.collapseEl = null;
			this.expandEl = null;
			this.branchEl = null;
			this.elementField = false;

			this.startOpen = function(){};

			this.registerTableOption("dataTree", false); //enable data tree
			this.registerTableOption("dataTreeFilter", true); //filter child rows
			this.registerTableOption("dataTreeSort", true); //sort child rows
			this.registerTableOption("dataTreeElementColumn", false);
			this.registerTableOption("dataTreeBranchElement", true);//show data tree branch element
			this.registerTableOption("dataTreeChildIndent", 9); //data tree child indent in px
			this.registerTableOption("dataTreeChildField", "_children");//data tre column field to look for child rows
			this.registerTableOption("dataTreeCollapseElement", false);//data tree row collapse element
			this.registerTableOption("dataTreeExpandElement", false);//data tree row expand element
			this.registerTableOption("dataTreeStartExpanded", false);
			this.registerTableOption("dataTreeChildColumnCalcs", false);//include visible data tree rows in column calculations
			this.registerTableOption("dataTreeSelectPropagate", false);//selecting a parent row selects its children

			//register component functions
			this.registerComponentFunction("row", "treeCollapse", this.collapseRow.bind(this));
			this.registerComponentFunction("row", "treeExpand", this.expandRow.bind(this));
			this.registerComponentFunction("row", "treeToggle", this.toggleRow.bind(this));
			this.registerComponentFunction("row", "getTreeParent", this.getTreeParent.bind(this));
			this.registerComponentFunction("row", "getTreeChildren", this.getRowChildren.bind(this));
			this.registerComponentFunction("row", "addTreeChild", this.addTreeChildRow.bind(this));
			this.registerComponentFunction("row", "isTreeExpanded", this.isRowExpanded.bind(this));
		}

		initialize(){
			if(this.table.options.dataTree){
				var dummyEl = null,
				options = this.table.options;

				this.field = options.dataTreeChildField;
				this.indent = options.dataTreeChildIndent;

				if(this.options("movableRows")){
					console.warn("The movableRows option is not available with dataTree enabled, moving of child rows could result in unpredictable behavior");
				}

				if(options.dataTreeBranchElement){

					if(options.dataTreeBranchElement === true){
						this.branchEl = document.createElement("div");
						this.branchEl.classList.add("tabulator-data-tree-branch");
					}else {
						if(typeof options.dataTreeBranchElement === "string"){
							dummyEl = document.createElement("div");
							dummyEl.innerHTML = options.dataTreeBranchElement;
							this.branchEl = dummyEl.firstChild;
						}else {
							this.branchEl = options.dataTreeBranchElement;
						}
					}
				}else {
					this.branchEl = document.createElement("div");
					this.branchEl.classList.add("tabulator-data-tree-branch-empty");
				}

				if(options.dataTreeCollapseElement){
					if(typeof options.dataTreeCollapseElement === "string"){
						dummyEl = document.createElement("div");
						dummyEl.innerHTML = options.dataTreeCollapseElement;
						this.collapseEl = dummyEl.firstChild;
					}else {
						this.collapseEl = options.dataTreeCollapseElement;
					}
				}else {
					this.collapseEl = document.createElement("div");
					this.collapseEl.classList.add("tabulator-data-tree-control");
					this.collapseEl.tabIndex = 0;
					this.collapseEl.innerHTML = "<div class='tabulator-data-tree-control-collapse'></div>";
				}

				if(options.dataTreeExpandElement){
					if(typeof options.dataTreeExpandElement === "string"){
						dummyEl = document.createElement("div");
						dummyEl.innerHTML = options.dataTreeExpandElement;
						this.expandEl = dummyEl.firstChild;
					}else {
						this.expandEl = options.dataTreeExpandElement;
					}
				}else {
					this.expandEl = document.createElement("div");
					this.expandEl.classList.add("tabulator-data-tree-control");
					this.expandEl.tabIndex = 0;
					this.expandEl.innerHTML = "<div class='tabulator-data-tree-control-expand'></div>";
				}


				switch(typeof options.dataTreeStartExpanded){
					case "boolean":
						this.startOpen = function(row, index){
							return options.dataTreeStartExpanded;
						};
						break;

					case "function":
						this.startOpen = options.dataTreeStartExpanded;
						break;

					default:
						this.startOpen = function(row, index){
							return options.dataTreeStartExpanded[index];
						};
						break;
				}

				this.subscribe("row-init", this.initializeRow.bind(this));
				this.subscribe("row-layout-after", this.layoutRow.bind(this));
				this.subscribe("row-deleting", this.rowDeleting.bind(this));
				this.subscribe("row-deleted", this.rowDelete.bind(this),0);
				this.subscribe("row-data-changed", this.rowDataChanged.bind(this), 10);
				this.subscribe("cell-value-updated", this.cellValueChanged.bind(this));
				this.subscribe("edit-cancelled", this.cellValueChanged.bind(this));
				this.subscribe("column-moving-rows", this.columnMoving.bind(this));
				this.subscribe("table-built", this.initializeElementField.bind(this));
				this.subscribe("table-redrawing", this.tableRedrawing.bind(this));

				this.registerDisplayHandler(this.getRows.bind(this), 30);
			}
		}

		tableRedrawing(force){
			var rows;

			if(force){
				rows = this.table.rowManager.getRows();
				
				rows.forEach((row) => {
					this.reinitializeRowChildren(row);
				});
			}
		}

		initializeElementField(){
			var firstCol = this.table.columnManager.getFirstVisibleColumn();

			this.elementField = this.table.options.dataTreeElementColumn || (firstCol ? firstCol.field : false);
		}
		
		getRowChildren(row){
			return this.getTreeChildren(row, true);
		}

		columnMoving(){
			var rows = [];

			this.table.rowManager.rows.forEach((row) => {
				rows = rows.concat(this.getTreeChildren(row, false, true));
			});

			return rows;
		}

		rowDataChanged(row, visible, updatedData){
			if(this.redrawNeeded(updatedData)){
				this.initializeRow(row);

				if(visible){
					this.layoutRow(row);
					this.refreshData(true);
				}
			}
		}

		cellValueChanged(cell){
			var field = cell.column.getField();

			if(field === this.elementField){
				this.layoutRow(cell.row);
			}
		}

		initializeRow(row){
			var childArray = row.getData()[this.field];
			var isArray = Array.isArray(childArray);

			var children = isArray || (!isArray && typeof childArray === "object" && childArray !== null);

			if(!children && row.modules.dataTree && row.modules.dataTree.branchEl){
				row.modules.dataTree.branchEl.parentNode.removeChild(row.modules.dataTree.branchEl);
			}

			if(!children && row.modules.dataTree && row.modules.dataTree.controlEl){
				row.modules.dataTree.controlEl.parentNode.removeChild(row.modules.dataTree.controlEl);
			}

			row.modules.dataTree = {
				index: row.modules.dataTree ? row.modules.dataTree.index : 0,
				open: children ? (row.modules.dataTree ? row.modules.dataTree.open : this.startOpen(row.getComponent(), 0)) : false,
				controlEl: row.modules.dataTree && children ? row.modules.dataTree.controlEl : false,
				branchEl: row.modules.dataTree && children ? row.modules.dataTree.branchEl : false,
				parent: row.modules.dataTree ? row.modules.dataTree.parent : false,
				children:children,
			};
		}

		reinitializeRowChildren(row){
			var children = this.getTreeChildren(row, false, true);

			children.forEach(function(child){
				child.reinitialize(true);
			});
		}

		layoutRow(row){
			var cell = this.elementField ? row.getCell(this.elementField) : row.getCells()[0],
			el = cell.getElement(),
			config = row.modules.dataTree;

			if(config.branchEl){
				if(config.branchEl.parentNode){
					config.branchEl.parentNode.removeChild(config.branchEl);
				}
				config.branchEl = false;
			}

			if(config.controlEl){
				if(config.controlEl.parentNode){
					config.controlEl.parentNode.removeChild(config.controlEl);
				}
				config.controlEl = false;
			}

			this.generateControlElement(row, el);

			row.getElement().classList.add("tabulator-tree-level-" + config.index);

			if(config.index){
				if(this.branchEl){
					config.branchEl = this.branchEl.cloneNode(true);
					el.insertBefore(config.branchEl, el.firstChild);

					if(this.table.rtl){
						config.branchEl.style.marginRight = (((config.branchEl.offsetWidth + config.branchEl.style.marginLeft) * (config.index - 1)) + (config.index * this.indent)) + "px";
					}else {
						config.branchEl.style.marginLeft = (((config.branchEl.offsetWidth + config.branchEl.style.marginRight) * (config.index - 1)) + (config.index * this.indent)) + "px";
					}
				}else {

					if(this.table.rtl){
						el.style.paddingRight = parseInt(window.getComputedStyle(el, null).getPropertyValue('padding-right')) + (config.index * this.indent) + "px";
					}else {
						el.style.paddingLeft = parseInt(window.getComputedStyle(el, null).getPropertyValue('padding-left')) + (config.index * this.indent) + "px";
					}
				}
			}
		}

		generateControlElement(row, el){
			var config = row.modules.dataTree,
			oldControl = config.controlEl;

			el = el || row.getCells()[0].getElement();

			if(config.children !== false){

				if(config.open){
					config.controlEl = this.collapseEl.cloneNode(true);
					config.controlEl.addEventListener("click", (e) => {
						e.stopPropagation();
						this.collapseRow(row);
					});
				}else {
					config.controlEl = this.expandEl.cloneNode(true);
					config.controlEl.addEventListener("click", (e) => {
						e.stopPropagation();
						this.expandRow(row);
					});
				}

				config.controlEl.addEventListener("mousedown", (e) => {
					e.stopPropagation();
				});

				if(oldControl && oldControl.parentNode === el){
					oldControl.parentNode.replaceChild(config.controlEl,oldControl);
				}else {
					el.insertBefore(config.controlEl, el.firstChild);
				}
			}
		}

		getRows(rows){
			var output = [];

			rows.forEach((row, i) => {
				var config, children;

				output.push(row);

				if(row instanceof Row){

					row.create();

					config = row.modules.dataTree;

					if(!config.index && config.children !== false){
						children = this.getChildren(row, false, true);

						children.forEach((child) => {
							child.create();
							output.push(child);
						});
					}
				}
			});

			return output;
		}

		getChildren(row, allChildren, sortOnly){
			var config = row.modules.dataTree,
			children = [],
			output = [];

			if(config.children !== false && (config.open || allChildren)){
				if(!Array.isArray(config.children)){
					config.children = this.generateChildren(row);
				}

				if(this.table.modExists("filter") && this.table.options.dataTreeFilter){
					children = this.table.modules.filter.filter(config.children);
				}else {
					children = config.children;
				}

				if(this.table.modExists("sort") && this.table.options.dataTreeSort){
					this.table.modules.sort.sort(children, sortOnly);
				}

				children.forEach((child) => {
					output.push(child);

					var subChildren = this.getChildren(child, false, true);

					subChildren.forEach((sub) => {
						output.push(sub);
					});
				});
			}

			return output;
		}

		generateChildren(row){
			var children = [];

			var childArray = row.getData()[this.field];

			if(!Array.isArray(childArray)){
				childArray = [childArray];
			}

			childArray.forEach((childData) => {
				var childRow = new Row(childData || {}, this.table.rowManager);

				childRow.create();

				childRow.modules.dataTree.index = row.modules.dataTree.index + 1;
				childRow.modules.dataTree.parent = row;

				if(childRow.modules.dataTree.children){
					childRow.modules.dataTree.open = this.startOpen(childRow.getComponent(), childRow.modules.dataTree.index);
				}
				children.push(childRow);
			});

			return children;
		}

		expandRow(row, silent){
			var config = row.modules.dataTree;

			if(config.children !== false){
				config.open = true;

				row.reinitialize();

				this.refreshData(true);

				this.dispatchExternal("dataTreeRowExpanded", row.getComponent(), row.modules.dataTree.index);
			}
		}

		collapseRow(row){
			var config = row.modules.dataTree;

			if(config.children !== false){
				config.open = false;

				row.reinitialize();

				this.refreshData(true);

				this.dispatchExternal("dataTreeRowCollapsed", row.getComponent(), row.modules.dataTree.index);
			}
		}

		toggleRow(row){
			var config = row.modules.dataTree;

			if(config.children !== false){
				if(config.open){
					this.collapseRow(row);
				}else {
					this.expandRow(row);
				}
			}
		}

		isRowExpanded(row){
			return row.modules.dataTree.open;
		}

		getTreeParent(row){
			return row.modules.dataTree.parent ? row.modules.dataTree.parent.getComponent() : false;
		}

		getTreeParentRoot(row){
			return row.modules.dataTree && row.modules.dataTree.parent ? this.getTreeParentRoot(row.modules.dataTree.parent) : row;
		}

		getFilteredTreeChildren(row){
			var config = row.modules.dataTree,
			output = [], children;

			if(config.children){

				if(!Array.isArray(config.children)){
					config.children = this.generateChildren(row);
				}

				if(this.table.modExists("filter") && this.table.options.dataTreeFilter){
					children = this.table.modules.filter.filter(config.children);
				}else {
					children = config.children;
				}

				children.forEach((childRow) => {
					if(childRow instanceof Row){
						output.push(childRow);
					}
				});
			}

			return output;
		}

		rowDeleting(row){
			var config = row.modules.dataTree;

			if (config && config.children && Array.isArray(config.children)){
				config.children.forEach((childRow) => {
					if(childRow instanceof Row){
						childRow.wipe();
					}
				});
			}
		}

		rowDelete(row){
			var parent = row.modules.dataTree.parent,
			childIndex;

			if(parent){
				childIndex = this.findChildIndex(row, parent);

				if(childIndex !== false){
					parent.data[this.field].splice(childIndex, 1);
				}

				if(!parent.data[this.field].length){
					delete parent.data[this.field];
				}

				this.initializeRow(parent);
				this.layoutRow(parent);
			}

			this.refreshData(true);
		}

		addTreeChildRow(row, data, top, index){
			var childIndex = false;

			if(typeof data === "string"){
				data = JSON.parse(data);
			}

			if(!Array.isArray(row.data[this.field])){
				row.data[this.field] = [];

				row.modules.dataTree.open = this.startOpen(row.getComponent(), row.modules.dataTree.index);
			}

			if(typeof index !== "undefined"){
				childIndex = this.findChildIndex(index, row);

				if(childIndex !== false){
					row.data[this.field].splice((top ? childIndex : childIndex + 1), 0, data);
				}
			}

			if(childIndex === false){
				if(top){
					row.data[this.field].unshift(data);
				}else {
					row.data[this.field].push(data);
				}
			}

			this.initializeRow(row);
			this.layoutRow(row);

			this.refreshData(true);
		}

		findChildIndex(subject, parent){
			var match = false;

			if(typeof subject == "object"){

				if(subject instanceof Row){
					//subject is row element
					match = subject.data;
				}else if(subject instanceof RowComponent){
					//subject is public row component
					match = subject._getSelf().data;
				}else if(typeof HTMLElement !== "undefined" && subject instanceof HTMLElement){
					if(parent.modules.dataTree){
						match = parent.modules.dataTree.children.find((childRow) => {
							return childRow instanceof Row ? childRow.element === subject : false;
						});

						if(match){
							match = match.data;
						}
					}
				}else if(subject === null){
					match = false;
				}

			}else if(typeof subject == "undefined"){
				match = false;
			}else {
				//subject should be treated as the index of the row
				match = parent.data[this.field].find((row) => {
					return row.data[this.table.options.index] == subject;
				});
			}

			if(match){

				if(Array.isArray(parent.data[this.field])){
					match = parent.data[this.field].indexOf(match);
				}

				if(match == -1){
					match = false;
				}
			}

			//catch all for any other type of input

			return match;
		}

		getTreeChildren(row, component, recurse){
			var config = row.modules.dataTree,
			output = [];

			if(config && config.children){

				if(!Array.isArray(config.children)){
					config.children = this.generateChildren(row);
				}

				config.children.forEach((childRow) => {
					if(childRow instanceof Row){
						output.push(component ? childRow.getComponent() : childRow);

						if(recurse){
							this.getTreeChildren(childRow, component, recurse).forEach(child => {
								output.push(child);
							});
						}
					}
				});
			}

			return output;
		}

		getChildField(){
			return this.field;
		}

		redrawNeeded(data){
			return (this.field ? typeof data[this.field] !== "undefined" : false) || (this.elementField ? typeof data[this.elementField] !== "undefined" : false);
		}
	}

	function csv$1(list, options = {}, setFileContents){
		var delimiter = options.delimiter ? options.delimiter : ",",
		fileContents = [],
		headers = [];

		list.forEach((row) => {
			var item = [];

			switch(row.type){
				case "group":
					console.warn("Download Warning - CSV downloader cannot process row groups");
					break;

				case "calc":
					console.warn("Download Warning - CSV downloader cannot process column calculations");
					break;

				case "header":
					row.columns.forEach((col, i) => {
						if(col && col.depth === 1){
							headers[i] = typeof col.value == "undefined"  || col.value === null ? "" : ('"' + String(col.value).split('"').join('""') + '"');
						}
					});
					break;

				case "row":
					row.columns.forEach((col) => {

						if(col){

							switch(typeof col.value){
								case "object":
									col.value = col.value !== null ? JSON.stringify(col.value) : "";
									break;

								case "undefined":
									col.value = "";
									break;
							}

							item.push('"' + String(col.value).split('"').join('""') + '"');
						}
					});

					fileContents.push(item.join(delimiter));
					break;
			}
		});

		if(headers.length){
			fileContents.unshift(headers.join(delimiter));
		}

		fileContents = fileContents.join("\n");

		if(options.bom){
			fileContents = "\ufeff" + fileContents;
		}

		setFileContents(fileContents, "text/csv");
	}

	function json$2(list, options, setFileContents){
		var fileContents = [];

		list.forEach((row) => {
			var item = {};

			switch(row.type){
				case "header":
					break;

				case "group":
					console.warn("Download Warning - JSON downloader cannot process row groups");
					break;

				case "calc":
					console.warn("Download Warning - JSON downloader cannot process column calculations");
					break;

				case "row":
					row.columns.forEach((col) => {
						if(col){
							item[col.component.getTitleDownload() || col.component.getField()] = col.value;
						}
					});

					fileContents.push(item);
					break;
			}
		});

		fileContents = JSON.stringify(fileContents, null, '\t');

		setFileContents(fileContents, "application/json");
	}

	function pdf(list, options = {}, setFileContents){
		var header = [],
		body = [],
		autoTableParams = {},
		rowGroupStyles = options.rowGroupStyles || {
			fontStyle: "bold",
			fontSize: 12,
			cellPadding: 6,
			fillColor: 220,
		},
		rowCalcStyles = options.rowCalcStyles || {
			fontStyle: "bold",
			fontSize: 10,
			cellPadding: 4,
			fillColor: 232,
		},
		jsPDFParams = options.jsPDF || {},
		title = options.title ? options.title : "",
		jspdfLib, doc;

		if(!jsPDFParams.orientation){
			jsPDFParams.orientation = options.orientation || "landscape";
		}

		if(!jsPDFParams.unit){
			jsPDFParams.unit = "pt";
		}

		//parse row list
		list.forEach((row) => {
			switch(row.type){
				case "header":
					header.push(parseRow(row));
					break;

				case "group":
					body.push(parseRow(row, rowGroupStyles));
					break;

				case "calc":
					body.push(parseRow(row, rowCalcStyles));
					break;

				case "row":
					body.push(parseRow(row));
					break;
			}
		});

		function parseRow(row, styles){
			var rowData = [];

			row.columns.forEach((col) =>{
				var cell;

				if(col){
					switch(typeof col.value){
						case "object":
							col.value = col.value !== null ? JSON.stringify(col.value) : "";
							break;

						case "undefined":
							col.value = "";
							break;
					}

					cell = {
						content:col.value,
						colSpan:col.width,
						rowSpan:col.height,
					};

					if(styles){
						cell.styles = styles;
					}

					rowData.push(cell);
				}
			});

			return rowData;
		}


		//configure PDF
		jspdfLib = this.dependencyRegistry.lookup("jspdf", "jsPDF");
		doc = new jspdfLib(jsPDFParams); //set document to landscape, better for most tables

		if(options.autoTable){
			if(typeof options.autoTable === "function"){
				autoTableParams = options.autoTable(doc) || {};
			}else {
				autoTableParams = options.autoTable;
			}
		}

		if(title){
			autoTableParams.didDrawPage = function(data) {
				doc.text(title, 40, 30);
			};
		}

		autoTableParams.head = header;
		autoTableParams.body = body;

		doc.autoTable(autoTableParams);

		if(options.documentProcessing){
			options.documentProcessing(doc);
		}

		setFileContents(doc.output("arraybuffer"), "application/pdf");
	}

	function xlsx$1(list, options, setFileContents){
		var self = this,
		sheetName = options.sheetName || "Sheet1",
		XLSXLib = this.dependencyRegistry.lookup("XLSX"),
		workbook = XLSXLib.utils.book_new(),
		tableFeatures = new CoreFeature(this),
		compression =  'compress' in options ? options.compress : true,
		writeOptions = options.writeOptions || {bookType:'xlsx', bookSST:true, compression},
		output;

		writeOptions.type = 'binary';

		workbook.SheetNames = [];
		workbook.Sheets = {};

		function generateSheet(){
			var rows = [],
			merges = [],
			worksheet = {},
			range = {s: {c:0, r:0}, e: {c:(list[0] ? list[0].columns.reduce((a, b) => a + (b && b.width ? b.width : 1), 0) : 0), r:list.length }};

			//parse row list
			list.forEach((row, i) => {
				var rowData = [];

				row.columns.forEach(function(col, j){

					if(col){
						rowData.push(!(col.value instanceof Date) && typeof col.value === "object" ? JSON.stringify(col.value) : col.value);

						if(col.width > 1 || col.height > -1){
							if(col.height > 1 || col.width > 1){
								merges.push({s:{r:i,c:j},e:{r:i + col.height - 1,c:j + col.width - 1}});
							}
						}
					}else {
						rowData.push("");
					}
				});

				rows.push(rowData);
			});

			//convert rows to worksheet
			XLSXLib.utils.sheet_add_aoa(worksheet, rows);

			worksheet['!ref'] = XLSXLib.utils.encode_range(range);

			if(merges.length){
				worksheet["!merges"] = merges;
			}

			return worksheet;
		}

		if(options.sheetOnly){
			setFileContents(generateSheet());
			return;
		}

		if(options.sheets){
			for(var sheet in options.sheets){

				if(options.sheets[sheet] === true){
					workbook.SheetNames.push(sheet);
					workbook.Sheets[sheet] = generateSheet();
				}else {

					workbook.SheetNames.push(sheet);

					tableFeatures.commsSend(options.sheets[sheet], "download", "intercept",{
						type:"xlsx",
						options:{sheetOnly:true},
						active:self.active,
						intercept:function(data){
							workbook.Sheets[sheet] = data;
						}
					});
				}
			}
		}else {
			workbook.SheetNames.push(sheetName);
			workbook.Sheets[sheetName] = generateSheet();
		}

		if(options.documentProcessing){
			workbook = options.documentProcessing(workbook);
		}

		//convert workbook to binary array
		function s2ab(s) {
			var buf = new ArrayBuffer(s.length);
			var view = new Uint8Array(buf);
			for (var i=0; i!=s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF;
			return buf;
		}

		output = XLSXLib.write(workbook, writeOptions);

		setFileContents(s2ab(output), "application/octet-stream");
	}

	function html$1(list, options, setFileContents){
		if(this.modExists("export", true)){
			setFileContents(this.modules.export.generateHTMLTable(list), "text/html");
		}
	}

	function jsonLines (list, options, setFileContents) {
		const fileContents = [];

		list.forEach((row) => {
			const item = {};

			switch (row.type) {
				case "header":
					break;

				case "group":
					console.warn("Download Warning - JSON downloader cannot process row groups");
					break;

				case "calc":
					console.warn("Download Warning - JSON downloader cannot process column calculations");
					break;

				case "row":
					row.columns.forEach((col) => {
						if (col) {
							item[col.component.getTitleDownload() || col.component.getField()] = col.value;
						}
					});

					fileContents.push(JSON.stringify(item));
					break;
			}
		});

		setFileContents(fileContents.join("\n"), "application/x-ndjson");
	}

	var defaultDownloaders = {
		csv:csv$1,
		json:json$2,
		jsonLines:jsonLines,
		pdf:pdf,
		xlsx:xlsx$1,
		html:html$1,
	};

	class Download extends Module{

		static moduleName = "download";

		//load defaults
		static downloaders = defaultDownloaders;

		constructor(table){
			super(table);

			this.registerTableOption("downloadEncoder", function(data, mimeType){
				return new Blob([data],{type:mimeType});
			}); //function to manipulate download data
			this.registerTableOption("downloadConfig", {}); //download config
			this.registerTableOption("downloadRowRange", "active"); //restrict download to active rows only

			this.registerColumnOption("download");
			this.registerColumnOption("titleDownload");
		}

		initialize(){
			this.deprecatedOptionsCheck();

			this.registerTableFunction("download", this.download.bind(this));
			this.registerTableFunction("downloadToTab", this.downloadToTab.bind(this));
		}

		deprecatedOptionsCheck(){

		}	

		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////

		downloadToTab(type, filename, options, active){
			this.download(type, filename, options, active, true);
		}

		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////

		//trigger file download
		download(type, filename, options, range, interceptCallback){
			var downloadFunc = false;

			function buildLink(data, mime){
				if(interceptCallback){
					if(interceptCallback === true){
						this.triggerDownload(data, mime, type, filename, true);
					}else {
						interceptCallback(data);
					}

				}else {
					this.triggerDownload(data, mime, type, filename);
				}
			}

			if(typeof type == "function"){
				downloadFunc = type;
			}else {
				if(Download.downloaders[type]){
					downloadFunc = Download.downloaders[type];
				}else {
					console.warn("Download Error - No such download type found: ", type);
				}
			}

			if(downloadFunc){
				var list = this.generateExportList(range);

				downloadFunc.call(this.table, list , options || {}, buildLink.bind(this));
			}
		}

		generateExportList(range){
			var list = this.table.modules.export.generateExportList(this.table.options.downloadConfig, false, range || this.table.options.downloadRowRange, "download");

			//assign group header formatter
			var groupHeader = this.table.options.groupHeaderDownload;

			if(groupHeader && !Array.isArray(groupHeader)){
				groupHeader = [groupHeader];
			}

			list.forEach((row) => {
				var group;

				if(row.type === "group"){
					group = row.columns[0];

					if(groupHeader && groupHeader[row.indent]){
						group.value = groupHeader[row.indent](group.value, row.component._group.getRowCount(), row.component._group.getData(), row.component);
					}
				}
			});

			return list;
		}

		triggerDownload(data, mime, type, filename, newTab){
			var element = document.createElement('a'),
			blob = this.table.options.downloadEncoder(data, mime);

			if(blob){
				if(newTab){
					window.open(window.URL.createObjectURL(blob));
				}else {
					filename = filename || "Tabulator." + (typeof type === "function" ? "txt" : type);
					
					if(navigator.msSaveOrOpenBlob){
						navigator.msSaveOrOpenBlob(blob, filename);
					}else {
						element.setAttribute('href', window.URL.createObjectURL(blob));

						//set file title
						element.setAttribute('download', filename);

						//trigger download
						element.style.display = 'none';
						document.body.appendChild(element);
						element.click();

						//remove temporary link element
						document.body.removeChild(element);
					}
				}

				this.dispatchExternal("downloadComplete");
			}
		}

		commsReceived(table, action, data){
			switch(action){
				case "intercept":
					this.download(data.type, "", data.options, data.active, data.intercept);
					break;
			}
		}
	}

	function maskInput(el, options){
		var mask = options.mask,
		maskLetter = typeof options.maskLetterChar !== "undefined" ? options.maskLetterChar : "A",
		maskNumber = typeof options.maskNumberChar !== "undefined" ? options.maskNumberChar : "9",
		maskWildcard = typeof options.maskWildcardChar !== "undefined" ? options.maskWildcardChar : "*";

		function fillSymbols(index){
			var symbol = mask[index];
			if(typeof symbol !== "undefined" && symbol !== maskWildcard && symbol !== maskLetter && symbol !== maskNumber){
				el.value = el.value + "" + symbol;
				fillSymbols(index+1);
			}
		}

		el.addEventListener("keydown", (e) => {
			var index = el.value.length,
			char = e.key;

			if(e.keyCode > 46 && !e.ctrlKey && !e.metaKey){
				if(index >= mask.length){
					e.preventDefault();
					e.stopPropagation();
					return false;
				}else {
					switch(mask[index]){
						case maskLetter:
							if(char.toUpperCase() == char.toLowerCase()){
								e.preventDefault();
								e.stopPropagation();
								return false;
							}
							break;

						case maskNumber:
							if(isNaN(char)){
								e.preventDefault();
								e.stopPropagation();
								return false;
							}
							break;

						case maskWildcard:
							break;

						default:
							if(char !== mask[index]){
								e.preventDefault();
								e.stopPropagation();
								return false;
							}
					}
				}
			}

			return;
		});

		el.addEventListener("keyup", (e) => {
			if(e.keyCode > 46){
				if(options.maskAutoFill){
					fillSymbols(el.value.length);
				}
			}
		});


		if(!el.placeholder){
			el.placeholder = mask;
		}

		if(options.maskAutoFill){
			fillSymbols(el.value.length);
		}
	}

	//input element
	function input(cell, onRendered, success, cancel, editorParams){
		//create and style input
		var cellValue = cell.getValue(),
		input = document.createElement("input");

		input.setAttribute("type", editorParams.search ? "search" : "text");

		input.style.padding = "4px";
		input.style.width = "100%";
		input.style.boxSizing = "border-box";

		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}

		input.value = typeof cellValue !== "undefined" ? cellValue : "";

		onRendered(function(){
			if(cell.getType() === "cell"){
				input.focus({preventScroll: true});
				input.style.height = "100%";

				if(editorParams.selectContents){
					input.select();
				}
			}
		});

		function onChange(e){
			if(((cellValue === null || typeof cellValue === "undefined") && input.value !== "") || input.value !== cellValue){
				if(success(input.value)){
					cellValue = input.value; //persist value if successfully validated incase editor is used as header filter
				}
			}else {
				cancel();
			}
		}

		//submit new value on blur or change
		input.addEventListener("change", onChange);
		input.addEventListener("blur", onChange);

		//submit new value on enter
		input.addEventListener("keydown", function(e){
			switch(e.keyCode){
				// case 9:
				case 13:
					onChange();
					break;

				case 27:
					cancel();
					break;

				case 35:
				case 36:
					e.stopPropagation();
					break;
			}
		});

		if(editorParams.mask){
			maskInput(input, editorParams);
		}

		return input;
	}

	//resizable text area element
	function textarea$1(cell, onRendered, success, cancel, editorParams){
		var cellValue = cell.getValue(),
		vertNav = editorParams.verticalNavigation || "hybrid",
		value = String(cellValue !== null && typeof cellValue !== "undefined"  ? cellValue : ""),
		input = document.createElement("textarea"),
		scrollHeight = 0;

		//create and style input
		input.style.display = "block";
		input.style.padding = "2px";
		input.style.height = "100%";
		input.style.width = "100%";
		input.style.boxSizing = "border-box";
		input.style.whiteSpace = "pre-wrap";
		input.style.resize = "none";

		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}

		input.value = value;

		onRendered(function(){
			if(cell.getType() === "cell"){
				input.focus({preventScroll: true});
				input.style.height = "100%";

				input.scrollHeight;
				input.style.height = input.scrollHeight + "px";
				cell.getRow().normalizeHeight();

				if(editorParams.selectContents){
					input.select();
				}
			}
		});

		function onChange(e){

			if(((cellValue === null || typeof cellValue === "undefined") && input.value !== "") || input.value !== cellValue){

				if(success(input.value)){
					cellValue = input.value; //persist value if successfully validated incase editor is used as header filter
				}

				setTimeout(function(){
					cell.getRow().normalizeHeight();
				},300);
			}else {
				cancel();
			}
		}

		//submit new value on blur or change
		input.addEventListener("change", onChange);
		input.addEventListener("blur", onChange);

		input.addEventListener("keyup", function(){

			input.style.height = "";

			var heightNow = input.scrollHeight;

			input.style.height = heightNow + "px";

			if(heightNow != scrollHeight){
				scrollHeight = heightNow;
				cell.getRow().normalizeHeight();
			}
		});

		input.addEventListener("keydown", function(e){

			switch(e.keyCode){

				case 13:
					if(e.shiftKey && editorParams.shiftEnterSubmit){
						onChange();
					}
					break;

				case 27:
					cancel();
					break;

				case 38: //up arrow
					if(vertNav == "editor" || (vertNav == "hybrid" && input.selectionStart)){
						e.stopImmediatePropagation();
						e.stopPropagation();
					}

					break;

				case 40: //down arrow
					if(vertNav == "editor" || (vertNav == "hybrid" && input.selectionStart !== input.value.length)){
						e.stopImmediatePropagation();
						e.stopPropagation();
					}
					break;

				case 35:
				case 36:
					e.stopPropagation();
					break;
			}
		});

		if(editorParams.mask){
			maskInput(input, editorParams);
		}

		return input;
	}

	//input element with type of number
	function number$1(cell, onRendered, success, cancel, editorParams){
		var cellValue = cell.getValue(),
		vertNav = editorParams.verticalNavigation || "editor",
		input = document.createElement("input");

		input.setAttribute("type", "number");

		if(typeof editorParams.max != "undefined"){
			input.setAttribute("max", editorParams.max);
		}

		if(typeof editorParams.min != "undefined"){
			input.setAttribute("min", editorParams.min);
		}

		if(typeof editorParams.step != "undefined"){
			input.setAttribute("step", editorParams.step);
		}

		//create and style input
		input.style.padding = "4px";
		input.style.width = "100%";
		input.style.boxSizing = "border-box";

		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}

		input.value = cellValue;

		var blurFunc = function(e){
			onChange();
		};

		onRendered(function () {
			if(cell.getType() === "cell"){
				//submit new value on blur
				input.removeEventListener("blur", blurFunc);

				input.focus({preventScroll: true});
				input.style.height = "100%";

				//submit new value on blur
				input.addEventListener("blur", blurFunc);

				if(editorParams.selectContents){
					input.select();
				}
			}
		});

		function onChange(){
			var value = input.value;

			if(!isNaN(value) && value !==""){
				value = Number(value);
			}

			if(value !== cellValue){
				if(success(value)){
					cellValue = value; //persist value if successfully validated incase editor is used as header filter
				}
			}else {
				cancel();
			}
		}

		//submit new value on enter
		input.addEventListener("keydown", function(e){
			switch(e.keyCode){
				case 13:
				// case 9:
					onChange();
					break;

				case 27:
					cancel();
					break;

				case 38: //up arrow
				case 40: //down arrow
					if(vertNav == "editor"){
						e.stopImmediatePropagation();
						e.stopPropagation();
					}
					break;

				case 35:
				case 36:
					e.stopPropagation();
					break;
			}
		});

		if(editorParams.mask){
			maskInput(input, editorParams);
		}

		return input;
	}

	//input element with type of number
	function range(cell, onRendered, success, cancel, editorParams){
		var cellValue = cell.getValue(),
		input = document.createElement("input");
		
		input.setAttribute("type", "range");
		
		if (typeof editorParams.max != "undefined") {
			input.setAttribute("max", editorParams.max);
		}
		
		if (typeof editorParams.min != "undefined") {
			input.setAttribute("min", editorParams.min);
		}
		
		if (typeof editorParams.step != "undefined") {
			input.setAttribute("step", editorParams.step);
		}
		
		//create and style input
		input.style.padding = "4px";
		input.style.width = "100%";
		input.style.boxSizing = "border-box";
		
		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}
		
		input.value = cellValue;
		
		onRendered(function () {
			if(cell.getType() === "cell"){
				input.focus({preventScroll: true});
				input.style.height = "100%";
			}
		});
		
		function onChange(){
			var value = input.value;
			
			if(!isNaN(value) && value !==""){
				value = Number(value);
			}
			
			if(value != cellValue){
				if(success(value)){
					cellValue = value; //persist value if successfully validated incase editor is used as header filter
				}
			}else {
				cancel();
			}
		}
		
		//submit new value on blur
		input.addEventListener("blur", function(e){
			onChange();
		});
		
		//submit new value on enter
		input.addEventListener("keydown", function(e){
			switch(e.keyCode){
				case 13:
				// case 9:
					onChange();
					break;
				
				case 27:
					cancel();
					break;
			}
		});
		
		return input;
	}

	//input element
	function date$1(cell, onRendered, success, cancel, editorParams){
		var inputFormat = editorParams.format,
		vertNav = editorParams.verticalNavigation || "editor",
		DT = inputFormat ? (window.DateTime || luxon.DateTime) : null;
		
		//create and style input
		var cellValue = cell.getValue(),
		input = document.createElement("input");
		
		function convertDate(value){
			var newDatetime;
			
			if(DT.isDateTime(value)){
				newDatetime = value;
			}else if(inputFormat === "iso"){
				newDatetime = DT.fromISO(String(value));
			}else {
				newDatetime = DT.fromFormat(String(value), inputFormat);
			}
			
			return newDatetime.toFormat("yyyy-MM-dd");
		}
		
		input.type = "date";
		input.style.padding = "4px";
		input.style.width = "100%";
		input.style.boxSizing = "border-box";

		if(editorParams.max){
			input.setAttribute("max", inputFormat ? convertDate(editorParams.max) : editorParams.max);
		}

		if(editorParams.min){
			input.setAttribute("min", inputFormat ? convertDate(editorParams.min) : editorParams.min);
		}
		
		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}
		
		cellValue = typeof cellValue !== "undefined" ? cellValue : "";
		
		if(inputFormat){
			if(DT){		
				cellValue = convertDate(cellValue);			
			}else {
				console.error("Editor Error - 'date' editor 'format' param is dependant on luxon.js");
			}
		}
		
		input.value = cellValue;
		
		onRendered(function(){
			if(cell.getType() === "cell"){
				input.focus({preventScroll: true});
				input.style.height = "100%";
				
				if(editorParams.selectContents){
					input.select();
				}
			}
		});
		
		function onChange(){
			var value = input.value,
			luxDate;
			
			if(((cellValue === null || typeof cellValue === "undefined") && value !== "") || value !== cellValue){
				
				if(value && inputFormat){
					luxDate = DT.fromFormat(String(value), "yyyy-MM-dd");

					switch(inputFormat){
						case true:
							value = luxDate;
							break;

						case "iso":
							value = luxDate.toISO();
							break;

						default:
							value = luxDate.toFormat(inputFormat);
					}
				}
				
				if(success(value)){
					cellValue = input.value; //persist value if successfully validated incase editor is used as header filter
				}
			}else {
				cancel();
			}
		}
		
		//submit new value on blur
		input.addEventListener("blur", function(e) {
			if (e.relatedTarget || e.rangeParent || e.explicitOriginalTarget !== input) {
				onChange(); // only on a "true" blur; not when focusing browser's date/time picker
			}
		});
		
		//submit new value on enter
		input.addEventListener("keydown", function(e){
			switch(e.keyCode){
				// case 9:
				case 13:
					onChange();
					break;
				
				case 27:
					cancel();
					break;
				
				case 35:
				case 36:
					e.stopPropagation();
					break;
				
				case 38: //up arrow
				case 40: //down arrow
					if(vertNav == "editor"){
						e.stopImmediatePropagation();
						e.stopPropagation();
					}
					break;
			}
		});
		
		return input;
	}

	//input element
	function time$1(cell, onRendered, success, cancel, editorParams){
		var inputFormat = editorParams.format,
		vertNav = editorParams.verticalNavigation || "editor",
		DT = inputFormat ? (window.DateTime || luxon.DateTime) : null, 
		newDatetime;
		
		//create and style input
		var cellValue = cell.getValue(),
		input = document.createElement("input");
		
		input.type = "time";
		input.style.padding = "4px";
		input.style.width = "100%";
		input.style.boxSizing = "border-box";
		
		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}
		
		cellValue = typeof cellValue !== "undefined" ? cellValue : "";
		
		if(inputFormat){
			if(DT){
				if(DT.isDateTime(cellValue)){
					newDatetime = cellValue;
				}else if(inputFormat === "iso"){
					newDatetime = DT.fromISO(String(cellValue));
				}else {
					newDatetime = DT.fromFormat(String(cellValue), inputFormat);
				}
				
				cellValue = newDatetime.toFormat("HH:mm");
				
			}else {
				console.error("Editor Error - 'date' editor 'format' param is dependant on luxon.js");
			}
		}
		
		input.value = cellValue;
		
		onRendered(function(){
			if(cell.getType() == "cell"){
				input.focus({preventScroll: true});
				input.style.height = "100%";
				
				if(editorParams.selectContents){
					input.select();
				}
			}
		});
		
		function onChange(){
			var value = input.value,
			luxTime;
			
			if(((cellValue === null || typeof cellValue === "undefined") && value !== "") || value !== cellValue){
				
				if(value && inputFormat){
					luxTime = DT.fromFormat(String(value), "hh:mm");

					switch(inputFormat){
						case true:
							value = luxTime;
							break;

						case "iso":
							value = luxTime.toISO();
							break;

						default:
							value = luxTime.toFormat(inputFormat);
					}
				}
				
				if(success(value)){
					cellValue = input.value; //persist value if successfully validated incase editor is used as header filter
				}
			}else {
				cancel();
			}
		}
		
		//submit new value on blur
		input.addEventListener("blur", function(e) {
			if (e.relatedTarget || e.rangeParent || e.explicitOriginalTarget !== input) {
				onChange(); // only on a "true" blur; not when focusing browser's date/time picker
			}
		});
		
		//submit new value on enter
		input.addEventListener("keydown", function(e){
			switch(e.keyCode){
				// case 9:
				case 13:
					onChange();
					break;
				
				case 27:
					cancel();
					break;
				
				case 35:
				case 36:
					e.stopPropagation();
					break;

				case 38: //up arrow
				case 40: //down arrow
					if(vertNav == "editor"){
						e.stopImmediatePropagation();
						e.stopPropagation();
					}
					break;
			}
		});
		
		return input;
	}

	//input element
	function datetime$2(cell, onRendered, success, cancel, editorParams){
		var inputFormat = editorParams.format,
		vertNav = editorParams.verticalNavigation || "editor",
		DT = inputFormat ? (this.table.dependencyRegistry.lookup(["luxon", "DateTime"], "DateTime")) : null, 
		newDatetime;
		
		//create and style input
		var cellValue = cell.getValue(),
		input = document.createElement("input");
		
		input.type = "datetime-local";
		input.style.padding = "4px";
		input.style.width = "100%";
		input.style.boxSizing = "border-box";
		
		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}
		
		cellValue = typeof cellValue !== "undefined" ? cellValue : "";
		
		if(inputFormat){
			if(DT){
				if(DT.isDateTime(cellValue)){
					newDatetime = cellValue;
				}else if(inputFormat === "iso"){
					newDatetime = DT.fromISO(String(cellValue));
				}else {
					newDatetime = DT.fromFormat(String(cellValue), inputFormat);
				}
				
				cellValue = newDatetime.toFormat("yyyy-MM-dd")  + "T" + newDatetime.toFormat("HH:mm");
			}else {
				console.error("Editor Error - 'date' editor 'format' param is dependant on luxon.js");
			}
		}
		
		input.value = cellValue;
		
		onRendered(function(){
			if(cell.getType() === "cell"){
				input.focus({preventScroll: true});
				input.style.height = "100%";
				
				if(editorParams.selectContents){
					input.select();
				}
			}
		});
		
		function onChange(){
			var value = input.value,
			luxDateTime;
			
			if(((cellValue === null || typeof cellValue === "undefined") && value !== "") || value !== cellValue){

				if(value && inputFormat){
					luxDateTime = DT.fromISO(String(value));

					switch(inputFormat){
						case true:
							value = luxDateTime;
							break;

						case "iso":
							value = luxDateTime.toISO();
							break;

						default:
							value = luxDateTime.toFormat(inputFormat);
					}
				}
				
				if(success(value)){
					cellValue = input.value; //persist value if successfully validated incase editor is used as header filter
				}
			}else {
				cancel();
			}
		}
		
		//submit new value on blur
		input.addEventListener("blur", function(e) {
			if (e.relatedTarget || e.rangeParent || e.explicitOriginalTarget !== input) {
				onChange(); // only on a "true" blur; not when focusing browser's date/time picker
			}
		});
		
		//submit new value on enter
		input.addEventListener("keydown", function(e){
			switch(e.keyCode){
				// case 9:
				case 13:
					onChange();
					break;
				
				case 27:
					cancel();
					break;
				
				case 35:
				case 36:
					e.stopPropagation();
					break;

				case 38: //up arrow
				case 40: //down arrow
					if(vertNav == "editor"){
						e.stopImmediatePropagation();
						e.stopPropagation();
					}
					break;
			}
		});
		
		return input;
	}

	let Edit$1 = class Edit{
		constructor(editor, cell, onRendered, success, cancel, editorParams){
			this.edit = editor;
			this.table = editor.table;
			this.cell = cell;
			this.params = this._initializeParams(editorParams);
			
			this.data = [];
			this.displayItems = [];
			this.currentItems = [];
			this.focusedItem = null;
			
			this.input = this._createInputElement();
			this.listEl = this._createListElement();
			
			this.initialValues = null; 
			
			this.isFilter = cell.getType() === "header";
			
			this.filterTimeout = null;
			this.filtered = false;
			this.typing = false;
			
			this.values = []; 
			this.popup = null;  
			
			this.listIteration = 0;
			
			this.lastAction="";
			this.filterTerm="";
			
			this.blurable = true;
			
			this.actions = {
				success:success,
				cancel:cancel
			};
			
			this._deprecatedOptionsCheck();
			this._initializeValue();
			
			onRendered(this._onRendered.bind(this));
		}
		
		_deprecatedOptionsCheck(){
			// if(this.params.listItemFormatter){
			// 	this.cell.getTable().deprecationAdvisor.msg("The listItemFormatter editor param has been deprecated, please see the latest editor documentation for updated options");
			// }
			
			// if(this.params.sortValuesList){
			// 	this.cell.getTable().deprecationAdvisor.msg("The sortValuesList editor param has been deprecated, please see the latest editor documentation for updated options");
			// }
			
			// if(this.params.searchFunc){
			// 	this.cell.getTable().deprecationAdvisor.msg("The searchFunc editor param has been deprecated, please see the latest editor documentation for updated options");
			// }
			
			// if(this.params.searchingPlaceholder){
			// 	this.cell.getTable().deprecationAdvisor.msg("The searchingPlaceholder editor param has been deprecated, please see the latest editor documentation for updated options");
			// }
		}
		
		_initializeValue(){
			var initialValue = this.cell.getValue();
			
			if(typeof initialValue === "undefined" && typeof this.params.defaultValue !== "undefined"){
				initialValue = this.params.defaultValue;
			}
			
			this.initialValues = this.params.multiselect ? initialValue : [initialValue];
			
			if(this.isFilter){
				this.input.value = this.initialValues ? this.initialValues.join(",") : "";
				this.headerFilterInitialListGen();            
			}
		}
		
		_onRendered(){
			var cellEl = this.cell.getElement();
			
			function clickStop(e){
				e.stopPropagation();
			}	
			
			if(!this.isFilter){
				this.input.style.height = "100%";
				this.input.focus({preventScroll: true});
			}
			
			
			cellEl.addEventListener("click", clickStop);
			
			setTimeout(() => {
				cellEl.removeEventListener("click", clickStop);
			}, 1000);
			
			this.input.addEventListener("mousedown", this._preventPopupBlur.bind(this));
		}
		
		_createListElement(){
			var listEl = document.createElement("div");
			listEl.classList.add("tabulator-edit-list");
			
			listEl.addEventListener("mousedown", this._preventBlur.bind(this));
			listEl.addEventListener("keydown", this._inputKeyDown.bind(this));
			
			return listEl;
		}
		
		_setListWidth(){
			var element = this.isFilter ? this.input : this.cell.getElement();
			
			this.listEl.style.minWidth = element.offsetWidth + "px";
			
			if(this.params.maxWidth){
				if(this.params.maxWidth === true){
					this.listEl.style.maxWidth = element.offsetWidth + "px";
				}else if(typeof this.params.maxWidth === "number"){
					this.listEl.style.maxWidth = this.params.maxWidth + "px";
				}else {
					this.listEl.style.maxWidth = this.params.maxWidth;
				}
			}
			
		}
		
		_createInputElement(){
			var attribs = this.params.elementAttributes;
			var input = document.createElement("input");
			
			input.setAttribute("type", this.params.clearable ? "search" : "text");
			
			input.style.padding = "4px";
			input.style.width = "100%";
			input.style.boxSizing = "border-box";
			
			if(!this.params.autocomplete){
				input.style.cursor = "default";
				input.style.caretColor = "transparent";
				// input.readOnly = (this.edit.currentCell != false);
			}
			
			if(attribs && typeof attribs == "object"){
				for (let key in attribs){
					if(key.charAt(0) == "+"){
						key = key.slice(1);
						input.setAttribute(key, input.getAttribute(key) + attribs["+" + key]);
					}else {
						input.setAttribute(key, attribs[key]);
					}
				}
			}
			
			if(this.params.mask){
				maskInput(input, this.params);
			}
			
			this._bindInputEvents(input);
			
			return input;
		}
		
		_initializeParams(params){
			var valueKeys = ["values", "valuesURL", "valuesLookup"],
			valueCheck;
			
			params = Object.assign({}, params);
			
			params.verticalNavigation = params.verticalNavigation || "editor";
			params.placeholderLoading = typeof params.placeholderLoading === "undefined" ? "Searching ..." : params.placeholderLoading;
			params.placeholderEmpty = typeof params.placeholderEmpty === "undefined" ? "No Results Found" : params.placeholderEmpty;
			params.filterDelay = typeof params.filterDelay === "undefined" ? 300 : params.filterDelay;
			
			params.emptyValue = Object.keys(params).includes("emptyValue") ? params.emptyValue : "";
			
			valueCheck = Object.keys(params).filter(key => valueKeys.includes(key)).length;
			
			if(!valueCheck){
				console.warn("list editor config error - either the values, valuesURL, or valuesLookup option must be set");
			}else if(valueCheck > 1){
				console.warn("list editor config error - only one of the values, valuesURL, or valuesLookup options can be set on the same editor");
			}
			
			if(params.autocomplete){
				if(params.multiselect){
					params.multiselect = false;
					console.warn("list editor config error - multiselect option is not available when autocomplete is enabled");
				}
			}else {
				if(params.freetext){
					params.freetext = false;
					console.warn("list editor config error - freetext option is only available when autocomplete is enabled");
				}
				
				if(params.filterFunc){
					params.filterFunc = false;
					console.warn("list editor config error - filterFunc option is only available when autocomplete is enabled");
				}
				
				if(params.filterRemote){
					params.filterRemote = false;
					console.warn("list editor config error - filterRemote option is only available when autocomplete is enabled");
				}
				
				if(params.mask){
					params.mask = false;
					console.warn("list editor config error - mask option is only available when autocomplete is enabled");
				}
				
				if(params.allowEmpty){
					params.allowEmpty = false;
					console.warn("list editor config error - allowEmpty option is only available when autocomplete is enabled");
				}
				
				if(params.listOnEmpty){
					params.listOnEmpty = false;
					console.warn("list editor config error - listOnEmpty option is only available when autocomplete is enabled");
				}
			}
			
			if(params.filterRemote && !(typeof params.valuesLookup === "function" || params.valuesURL)){
				params.filterRemote = false;
				console.warn("list editor config error - filterRemote option should only be used when values list is populated from a remote source");
			}
			return params;
		}
		//////////////////////////////////////
		////////// Event Handling ////////////
		//////////////////////////////////////
		
		_bindInputEvents(input){
			input.addEventListener("focus", this._inputFocus.bind(this));
			input.addEventListener("click", this._inputClick.bind(this));
			input.addEventListener("blur", this._inputBlur.bind(this));
			input.addEventListener("keydown", this._inputKeyDown.bind(this));
			input.addEventListener("search", this._inputSearch.bind(this));
			
			if(this.params.autocomplete){
				input.addEventListener("keyup", this._inputKeyUp.bind(this));
			}
		}
		
		
		_inputFocus(e){
			this.rebuildOptionsList();
		}
		
		_filter(){
			if(this.params.filterRemote){
				clearTimeout(this.filterTimeout);
				
				this.filterTimeout = setTimeout(() => {
					this.rebuildOptionsList();
				}, this.params.filterDelay);
			}else {
				this._filterList();
			}
		}
		
		_inputClick(e){
			e.stopPropagation();
		}
		
		_inputBlur(e){
			if(this.blurable){
				if(this.popup){
					this.popup.hide();
				}else {
					this._resolveValue(true);
				}
			}
		}
		
		_inputSearch(){
			this._clearChoices();
		}
		
		_inputKeyDown(e){
			switch(e.keyCode){
				
				case 38: //up arrow
					this._keyUp(e);
					break;
				
				case 40: //down arrow
					this._keyDown(e);
					break;
				
				case 37: //left arrow
				case 39: //right arrow
					this._keySide(e);
					break;
				
				case 13: //enter
					this._keyEnter();
					break;
				
				case 27: //escape
					this._keyEsc();
					break;
				
				case 36: //home
				case 35: //end
					this._keyHomeEnd(e);
					break;
				
				case 9: //tab
					this._keyTab(e);
					break;
				
				default:
					this._keySelectLetter(e);
			}
		}
		
		_inputKeyUp(e){
			switch(e.keyCode){
				case 38: //up arrow
				case 37: //left arrow
				case 39: //up arrow
				case 40: //right arrow
				case 13: //enter
				case 27: //escape
					break;
				
				default:
					this._keyAutoCompLetter(e);
			}
		}
		
		_preventPopupBlur(){
			if(this.popup){
				this.popup.blockHide();
			}
			
			setTimeout(() =>{
				if(this.popup){
					this.popup.restoreHide();
				}
			}, 10);
		}
		
		_preventBlur(){
			this.blurable = false;
			
			setTimeout(() =>{
				this.blurable = true;
			}, 10);
		}
		
		//////////////////////////////////////
		//////// Keyboard Navigation /////////
		//////////////////////////////////////
		
		_keyTab(e){
			if(this.params.autocomplete && this.lastAction === "typing"){
				this._resolveValue(true);
			}else {
				if(this.focusedItem){
					this._chooseItem(this.focusedItem, true);
				}
			}
		}
		
		_keyUp(e){
			var index = this.displayItems.indexOf(this.focusedItem);
			
			if(this.params.verticalNavigation == "editor" || (this.params.verticalNavigation == "hybrid" && index)){
				e.stopImmediatePropagation();
				e.stopPropagation();
				e.preventDefault();
				
				if(index > 0){
					this._focusItem(this.displayItems[index - 1]);
				}
			}
		}
		
		_keyDown(e){
			var index = this.displayItems.indexOf(this.focusedItem);
			
			if(this.params.verticalNavigation == "editor" || (this.params.verticalNavigation == "hybrid" && index < this.displayItems.length - 1)){
				e.stopImmediatePropagation();
				e.stopPropagation();
				e.preventDefault();
				
				if(index < this.displayItems.length - 1){
					if(index == -1){
						this._focusItem(this.displayItems[0]);
					}else {
						this._focusItem(this.displayItems[index + 1]);
					}
				}
			}
		}
		
		_keySide(e){
			if(!this.params.autocomplete){
				e.stopImmediatePropagation();
				e.stopPropagation();
				e.preventDefault();
			}
		}
		
		_keyEnter(e){
			if(this.params.autocomplete && this.lastAction === "typing"){
				this._resolveValue(true);
			}else {
				if(this.focusedItem){
					this._chooseItem(this.focusedItem);
				}
			}
		}
		
		_keyEsc(e){
			this._cancel();
		}
		
		_keyHomeEnd(e){
			if(this.params.autocomplete){
				//prevent table navigation while using input element
				e.stopImmediatePropagation();
			}
		}
		
		_keySelectLetter(e){
			if(!this.params.autocomplete){
				// if(this.edit.currentCell === false){
				e.preventDefault();
				// }
				
				if(e.keyCode >= 38 && e.keyCode <= 90){
					this._scrollToValue(e.keyCode);
				}
			}
		}
		
		_keyAutoCompLetter(e){
			this._filter();
			this.lastAction = "typing";
			this.typing = true;
		}
		
		
		_scrollToValue(char){
			clearTimeout(this.filterTimeout);
			
			var character = String.fromCharCode(char).toLowerCase();
			this.filterTerm += character.toLowerCase();
			
			var match = this.displayItems.find((item) => {
				return typeof item.label !== "undefined" && item.label.toLowerCase().startsWith(this.filterTerm);
			});
			
			if(match){
				this._focusItem(match);
			}
			
			this.filterTimeout = setTimeout(() => {
				this.filterTerm = "";
			}, 800);
		}
		
		_focusItem(item){
			this.lastAction = "focus";
			
			if(this.focusedItem && this.focusedItem.element){
				this.focusedItem.element.classList.remove("focused");
			}
			
			this.focusedItem = item;
			
			if(item && item.element){
				item.element.classList.add("focused");
				item.element.scrollIntoView({behavior: 'smooth', block: 'nearest', inline: 'start'});
			}
		}
		
		
		//////////////////////////////////////
		/////// Data List Generation /////////
		//////////////////////////////////////
		headerFilterInitialListGen(){
			this._generateOptions(true);
		}
		
		rebuildOptionsList(){
			this._generateOptions()
				.then(this._sortOptions.bind(this))
				.then(this._buildList.bind(this))
				.then(this._showList.bind(this))
				.catch((e) => {
					if(!Number.isInteger(e)){
						console.error("List generation error", e);
					}
				});
		}
		
		_filterList(){
			this._buildList(this._filterOptions());
			this._showList();
		}
		
		_generateOptions(silent){
			var values = [];
			var iteration = ++ this.listIteration;
			
			this.filtered = false;
			
			if(this.params.values){
				values = this.params.values;
			}else if (this.params.valuesURL){
				values = this._ajaxRequest(this.params.valuesURL, this.input.value);
			}else {
				if(typeof this.params.valuesLookup === "function"){
					values = this.params.valuesLookup(this.cell, this.input.value);
				}else if(this.params.valuesLookup){
					values = this._uniqueColumnValues(this.params.valuesLookupField);
				}
			}
			
			if(values instanceof Promise){
				if(!silent){
					this._addPlaceholder(this.params.placeholderLoading);
				}
				
				return values.then()
					.then((responseValues) => {
						if(this.listIteration === iteration){
							return this._parseList(responseValues);
						}else {
							return Promise.reject(iteration);
						}
					});
			}else {
				return Promise.resolve(this._parseList(values));
			}
		}
		
		_addPlaceholder(contents){
			var placeholder = document.createElement("div");
			
			if(typeof contents === "function"){
				contents = contents(this.cell.getComponent(), this.listEl);
			}
			
			if(contents){
				this._clearList();
				
				if(contents instanceof HTMLElement){
					placeholder = contents;
				}else {
					placeholder.classList.add("tabulator-edit-list-placeholder");
					placeholder.innerHTML = contents;
				}
				
				this.listEl.appendChild(placeholder);
				
				this._showList();
			}
		}
		
		_ajaxRequest(url, term){
			var params = this.params.filterRemote ? {term:term} : {};
			url = urlBuilder(url, {}, params);
			
			return fetch(url)
				.then((response)=>{
					if(response.ok) {
						return response.json()
							.catch((error)=>{
								console.warn("List Ajax Load Error - Invalid JSON returned", error);
								return Promise.reject(error);
							});
					}else {
						console.error("List Ajax Load Error - Connection Error: " + response.status, response.statusText);
						return Promise.reject(response);
					}
				})
				.catch((error)=>{
					console.error("List Ajax Load Error - Connection Error: ", error);
					return Promise.reject(error);
				});
		}
		
		_uniqueColumnValues(field){
			var output = {},
			data = this.table.getData(this.params.valuesLookup),
			column;
			
			if(field){
				column = this.table.columnManager.getColumnByField(field);
			}else {
				column = this.cell.getColumn()._getSelf();
			}
			
			if(column){
				data.forEach((row) => {
					var val = column.getFieldValue(row);
					
					if(!this._emptyValueCheck(val)){
						if(this.params.multiselect && Array.isArray(val)){
							val.forEach((item) => {
								if(!this._emptyValueCheck(item)){
									output[item] = true;
								}
							});
						}else {
							output[val] = true;
						}
						
					}
				});
			}else {
				console.warn("unable to find matching column to create select lookup list:", field);
				output = [];
			}
			
			return Object.keys(output);
		}

		_emptyValueCheck(value){
			return value === null || typeof value === "undefined" || value === "";
		}
		
		_parseList(inputValues){
			var data = [];
			
			if(!Array.isArray(inputValues)){
				inputValues = Object.entries(inputValues).map(([key, value]) => {
					return {
						label:value,
						value:key,
					};
				});
			}
			
			inputValues.forEach((value) => {
				if(typeof value !== "object"){
					value = {
						label:value,
						value:value,
					};
				}
				
				this._parseListItem(value, data, 0);
			});
			
			if(!this.currentItems.length && this.params.freetext){
				this.input.value = this.initialValues;
				this.typing = true;
				this.lastAction = "typing";
			}
			
			this.data = data;
			
			return data;    
		}
		
		_parseListItem(option, data, level){
			var item = {};
			
			if(option.options){
				item = this._parseListGroup(option, level + 1);
			}else {
				item = {
					label:option.label,
					value:option.value,
					itemParams:option.itemParams,
					elementAttributes: option.elementAttributes,
					element:false,
					selected:false,
					visible:true,
					level:level,
					original:option,
				};
				
				if(this.initialValues && this.initialValues.indexOf(option.value) > -1){
					this._chooseItem(item, true);
				}
			}
			
			data.push(item);
		}
		
		_parseListGroup(option, level){
			var item = {
				label:option.label,
				group:true,
				itemParams:option.itemParams,
				elementAttributes:option.elementAttributes,
				element:false,
				visible:true,
				level:level,
				options:[],
				original:option,
			};
			
			option.options.forEach((child) => {
				this._parseListItem(child, item.options, level);
			});
			
			return item;
		}
		
		_sortOptions(options){
			var sorter;
			
			if(this.params.sort){
				sorter = typeof this.params.sort === "function" ? this.params.sort : this._defaultSortFunction.bind(this);
				
				this._sortGroup(sorter, options);
			}
			
			return options;
		}
		
		_sortGroup(sorter, options){
			options.sort((a,b) => {
				return sorter(a.label, b.label, a.value, b.value, a.original, b.original);
			});
			
			options.forEach((option) => {
				if(option.group){
					this._sortGroup(sorter, option.options);
				}
			});
		}
		
		_defaultSortFunction(as, bs){
			var a, b, a1, b1, i= 0, L, rx = /(\d+)|(\D+)/g, rd = /\d/;
			var emptyAlign = 0;
			
			if(this.params.sort === "desc"){
				[as, bs] = [bs, as];
			}
			
			//handle empty values
			if(!as && as!== 0){
				emptyAlign =  !bs && bs!== 0 ? 0 : -1;
			}else if(!bs && bs!== 0){
				emptyAlign =  1;
			}else {
				if(isFinite(as) && isFinite(bs)) return as - bs;
				a = String(as).toLowerCase();
				b = String(bs).toLowerCase();
				if(a === b) return 0;
				if(!(rd.test(a) && rd.test(b))) return a > b ? 1 : -1;
				a = a.match(rx);
				b = b.match(rx);
				L = a.length > b.length ? b.length : a.length;
				while(i < L){
					a1= a[i];
					b1= b[i++];
					if(a1 !== b1){
						if(isFinite(a1) && isFinite(b1)){
							if(a1.charAt(0) === "0") a1 = "." + a1;
							if(b1.charAt(0) === "0") b1 = "." + b1;
							return a1 - b1;
						}
						else return a1 > b1 ? 1 : -1;
					}
				}
				
				return a.length > b.length;
			}
			
			return emptyAlign;
		}
		
		_filterOptions(){
			var filterFunc = this.params.filterFunc || this._defaultFilterFunc,
			term = this.input.value;
			
			if(term){
				this.filtered = true;
				
				this.data.forEach((item) => {
					this._filterItem(filterFunc, term, item);
				});
			}else {
				this.filtered = false;
			}
			
			return this.data;
		}
		
		_filterItem(func, term, item){
			var matches = false;
			
			if(!item.group){
				item.visible = func(term, item.label, item.value, item.original);
			}else {
				item.options.forEach((option) => {
					if(this._filterItem(func, term, option)){
						matches = true;
					}
				});
				
				item.visible = matches;
			}
			
			return item.visible;
		}
		
		_defaultFilterFunc(term, label, value, item){
			term = String(term).toLowerCase();
			
			if(label !== null && typeof label !== "undefined"){
				if(String(label).toLowerCase().indexOf(term) > -1 || String(value).toLowerCase().indexOf(term) > -1){
					return true;
				}
			}
			
			return false;
		}
		
		//////////////////////////////////////
		/////////// Display List /////////////
		//////////////////////////////////////
		
		_clearList(){
			while(this.listEl.firstChild) this.listEl.removeChild(this.listEl.firstChild);
			
			this.displayItems = [];
		}
		
		_buildList(data){
			this._clearList();
			
			data.forEach((option) => {
				this._buildItem(option);
			});
			
			if(!this.displayItems.length){
				this._addPlaceholder(this.params.placeholderEmpty);
			}  
		}
		
		_buildItem(item){
			var el = item.element,
			contents;
			
			if(!this.filtered || item.visible){
				
				if(!el){
					el = document.createElement("div");
					el.tabIndex = 0;
					
					contents = this.params.itemFormatter ? this.params.itemFormatter(item.label, item.value, item.original, el) : item.label;
					
					if(contents instanceof HTMLElement){
						el.appendChild(contents);
					}else {
						el.innerHTML = contents;
					}
					
					if(item.group){
						el.classList.add("tabulator-edit-list-group");
					}else {
						el.classList.add("tabulator-edit-list-item");
					}
					
					el.classList.add("tabulator-edit-list-group-level-" + item.level);
					
					if(item.elementAttributes && typeof item.elementAttributes == "object"){
						for (let key in item.elementAttributes){
							if(key.charAt(0) == "+"){
								key = key.slice(1);
								el.setAttribute(key, this.input.getAttribute(key) + item.elementAttributes["+" + key]);
							}else {
								el.setAttribute(key, item.elementAttributes[key]);
							}
						}
					}
					
					if(item.group){
						el.addEventListener("click", this._groupClick.bind(this, item));
					}else {
						el.addEventListener("click", this._itemClick.bind(this, item));
					}
					
					el.addEventListener("mousedown", this._preventBlur.bind(this));
					
					item.element = el;
				}
				
				this._styleItem(item);
				
				this.listEl.appendChild(el);
				
				if(item.group){
					item.options.forEach((option) => {
						this._buildItem(option);
					});
				}else {
					this.displayItems.push(item);
				}
			}
		}
		
		_showList(){
			var startVis = this.popup && this.popup.isVisible();
			
			if(this.input.parentNode){
				if(this.params.autocomplete && this.input.value === "" && !this.params.listOnEmpty){
					if(this.popup){
						this.popup.hide(true);
					}
					return;
				}
				
				this._setListWidth();
				
				if(!this.popup){
					this.popup = this.edit.popup(this.listEl);
				}
				
				this.popup.show(this.cell.getElement(), "bottom");
				
				if(!startVis){
					setTimeout(() => {
						this.popup.hideOnBlur(this._resolveValue.bind(this, true));
					}, 10);
				}
			}
		}
		
		_styleItem(item){
			if(item && item.element){
				if(item.selected){
					item.element.classList.add("active");
				}else {
					item.element.classList.remove("active");
				}
			}
		}
		
		//////////////////////////////////////
		///////// User Interaction ///////////
		//////////////////////////////////////
		
		_itemClick(item, e){
			e.stopPropagation();
			
			this._chooseItem(item);
		}
		
		_groupClick(item, e){
			e.stopPropagation();
		}
		
		
		//////////////////////////////////////
		////// Current Item Management ///////
		//////////////////////////////////////
		
		_cancel(){
			this.popup.hide(true);
			this.actions.cancel();
		}
		
		_clearChoices(){
			this.typing = true;
			
			this.currentItems.forEach((item) => {
				item.selected = false;
				this._styleItem(item);
			});
			
			this.currentItems = [];
			
			this.focusedItem = null;
		}
		
		_chooseItem(item, silent){
			var index;
			
			this.typing = false;
			
			if(this.params.multiselect){
				index = this.currentItems.indexOf(item);
				
				if(index > -1){
					this.currentItems.splice(index, 1);
					item.selected = false;
				}else {
					this.currentItems.push(item);
					item.selected = true;
				}
				
				this.input.value = this.currentItems.map(item => item.label).join(",");
				
				this._styleItem(item);
				
			}else {
				this.currentItems = [item];
				item.selected = true;
				
				this.input.value = item.label;
				
				this._styleItem(item);
				
				if(!silent){
					this._resolveValue();
				}
			}
			
			this._focusItem(item);
		}
		
		_resolveValue(blur){
			var output, initialValue;
			
			if(this.popup){
				this.popup.hide(true);
			}
			
			if(this.params.multiselect){
				output = this.currentItems.map(item => item.value);
			}else {
				if(blur && this.params.autocomplete && this.typing){
					if(this.params.freetext || (this.params.allowEmpty && this.input.value === "")){
						output = this.input.value;
					}else {
						this.actions.cancel();
						return;
					}
				}else {
					if(this.currentItems[0]){
						output = this.currentItems[0].value;
					}else {
						initialValue = Array.isArray(this.initialValues) ? this.initialValues[0] : this.initialValues;
						
						if(initialValue === null || typeof initialValue === "undefined" || initialValue === ""){
							output = initialValue;
						}else {
							output = this.params.emptyValue;
						}
					}
					
				}
			}
			
			if(output === ""){
				output = this.params.emptyValue;
			}
			
			this.actions.success(output);
			
			if(this.isFilter){
				this.initialValues = output && !Array.isArray(output) ? [output] : output;
				this.currentItems = [];
			}
		}
		
	};

	function list(cell, onRendered, success, cancel, editorParams){
		var list = new Edit$1(this, cell, onRendered, success, cancel, editorParams);

		return list.input;
	}

	//star rating
	function star$1(cell, onRendered, success, cancel, editorParams){
		var self = this,
		element = cell.getElement(),
		value = cell.getValue(),
		maxStars = element.getElementsByTagName("svg").length || 5,
		size = element.getElementsByTagName("svg")[0] ? element.getElementsByTagName("svg")[0].getAttribute("width") : 14,
		stars = [],
		starsHolder = document.createElement("div"),
		star = document.createElementNS('http://www.w3.org/2000/svg', "svg");


		//change star type
		function starChange(val){
			stars.forEach(function(star, i){
				if(i < val){
					if(self.table.browser == "ie"){
						star.setAttribute("class", "tabulator-star-active");
					}else {
						star.classList.replace("tabulator-star-inactive", "tabulator-star-active");
					}

					star.innerHTML = '<polygon fill="#488CE9" stroke="#014AAE" stroke-width="37.6152" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="259.216,29.942 330.27,173.919 489.16,197.007 374.185,309.08 401.33,467.31 259.216,392.612 117.104,467.31 144.25,309.08 29.274,197.007 188.165,173.919 "/>';
				}else {
					if(self.table.browser == "ie"){
						star.setAttribute("class", "tabulator-star-inactive");
					}else {
						star.classList.replace("tabulator-star-active", "tabulator-star-inactive");
					}

					star.innerHTML = '<polygon fill="#010155" stroke="#686868" stroke-width="37.6152" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="259.216,29.942 330.27,173.919 489.16,197.007 374.185,309.08 401.33,467.31 259.216,392.612 117.104,467.31 144.25,309.08 29.274,197.007 188.165,173.919 "/>';
				}
			});
		}

		//build stars
		function buildStar(i){

			var starHolder =  document.createElement("span");
			var nextStar = star.cloneNode(true);

			stars.push(nextStar);

			starHolder.addEventListener("mouseenter", function(e){
				e.stopPropagation();
				e.stopImmediatePropagation();
				starChange(i);
			});

			starHolder.addEventListener("mousemove", function(e){
				e.stopPropagation();
				e.stopImmediatePropagation();
			});

			starHolder.addEventListener("click", function(e){
				e.stopPropagation();
				e.stopImmediatePropagation();
				success(i);
				element.blur();
			});

			starHolder.appendChild(nextStar);
			starsHolder.appendChild(starHolder);

		}

		//handle keyboard navigation value change
		function changeValue(val){
			value = val;
			starChange(val);
		}

		//style cell
		element.style.whiteSpace = "nowrap";
		element.style.overflow = "hidden";
		element.style.textOverflow = "ellipsis";

		//style holding element
		starsHolder.style.verticalAlign = "middle";
		starsHolder.style.display = "inline-block";
		starsHolder.style.padding = "4px";

		//style star
		star.setAttribute("width", size);
		star.setAttribute("height", size);
		star.setAttribute("viewBox", "0 0 512 512");
		star.setAttribute("xml:space", "preserve");
		star.style.padding = "0 1px";

		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					starsHolder.setAttribute(key, starsHolder.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					starsHolder.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}

		//create correct number of stars
		for(var i=1;i<= maxStars;i++){
			buildStar(i);
		}

		//ensure value does not exceed number of stars
		value = Math.min(parseInt(value), maxStars);

		// set initial styling of stars
		starChange(value);

		starsHolder.addEventListener("mousemove", function(e){
			starChange(0);
		});

		starsHolder.addEventListener("click", function(e){
			success(0);
		});

		element.addEventListener("blur", function(e){
			cancel();
		});

		//allow key based navigation
		element.addEventListener("keydown", function(e){
			switch(e.keyCode){
				case 39: //right arrow
					changeValue(value + 1);
					break;

				case 37: //left arrow
					changeValue(value - 1);
					break;

				case 13: //enter
					success(value);
					break;

				case 27: //escape
					cancel();
					break;
			}
		});

		return starsHolder;
	}

	//draggable progress bar
	function progress$1(cell, onRendered, success, cancel, editorParams){
		var element = cell.getElement(),
		max = typeof editorParams.max === "undefined" ? ((element.getElementsByTagName("div")[0] && element.getElementsByTagName("div")[0].getAttribute("max")) || 100) : editorParams.max,
		min = typeof editorParams.min === "undefined" ? ((element.getElementsByTagName("div")[0] && element.getElementsByTagName("div")[0].getAttribute("min")) || 0) : editorParams.min,
		percent = (max - min) / 100,
		value = cell.getValue() || 0,
		handle = document.createElement("div"),
		bar = document.createElement("div"),
		mouseDrag, mouseDragWidth;

		//set new value
		function updateValue(){
			var style = window.getComputedStyle(element, null);

			var calcVal = (percent * Math.round(bar.offsetWidth / ((element.clientWidth - parseInt(style.getPropertyValue("padding-left")) - parseInt(style.getPropertyValue("padding-right")))/100))) + min;
			success(calcVal);
			element.setAttribute("aria-valuenow", calcVal);
			element.setAttribute("aria-label", value);
		}

		//style handle
		handle.style.position = "absolute";
		handle.style.right = "0";
		handle.style.top = "0";
		handle.style.bottom = "0";
		handle.style.width = "5px";
		handle.classList.add("tabulator-progress-handle");

		//style bar
		bar.style.display = "inline-block";
		bar.style.position = "relative";
		// bar.style.top = "8px";
		// bar.style.bottom = "8px";
		// bar.style.left = "4px";
		// bar.style.marginRight = "4px";
		bar.style.height = "100%";
		bar.style.backgroundColor = "#488CE9";
		bar.style.maxWidth = "100%";
		bar.style.minWidth = "0%";

		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					bar.setAttribute(key, bar.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					bar.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}

		//style cell
		element.style.padding = "4px 4px";

		//make sure value is in range
		value = Math.min(parseFloat(value), max);
		value = Math.max(parseFloat(value), min);

		//workout percentage
		value = Math.round((value - min) / percent);
		// bar.style.right = value + "%";
		bar.style.width = value + "%";

		element.setAttribute("aria-valuemin", min);
		element.setAttribute("aria-valuemax", max);

		bar.appendChild(handle);

		handle.addEventListener("mousedown", function(e){
			mouseDrag = e.screenX;
			mouseDragWidth = bar.offsetWidth;
		});

		handle.addEventListener("mouseover", function(){
			handle.style.cursor = "ew-resize";
		});

		element.addEventListener("mousemove", function(e){
			if(mouseDrag){
				bar.style.width = (mouseDragWidth + e.screenX - mouseDrag) + "px";
			}
		});

		element.addEventListener("mouseup", function(e){
			if(mouseDrag){
				e.stopPropagation();
				e.stopImmediatePropagation();

				mouseDrag = false;
				mouseDragWidth = false;

				updateValue();
			}
		});

		//allow key based navigation
		element.addEventListener("keydown", function(e){
			switch(e.keyCode){
				case 39: //right arrow
					e.preventDefault();
					bar.style.width = (bar.clientWidth + element.clientWidth/100) + "px";
					break;

				case 37: //left arrow
					e.preventDefault();
					bar.style.width = (bar.clientWidth - element.clientWidth/100) + "px";
					break;

				case 9: //tab
				case 13: //enter
					updateValue();
					break;

				case 27: //escape
					cancel();
					break;

			}
		});

		element.addEventListener("blur", function(){
			cancel();
		});

		return bar;
	}

	//checkbox
	function tickCross$1(cell, onRendered, success, cancel, editorParams){
		var value = cell.getValue(),
		input = document.createElement("input"),
		tristate = editorParams.tristate,
		indetermValue = typeof editorParams.indeterminateValue === "undefined" ? null : editorParams.indeterminateValue,
		indetermState = false,
		trueValueSet = Object.keys(editorParams).includes("trueValue"),
		falseValueSet = Object.keys(editorParams).includes("falseValue");
		
		input.setAttribute("type", "checkbox");
		input.style.marginTop = "5px";
		input.style.boxSizing = "border-box";
		
		if(editorParams.elementAttributes && typeof editorParams.elementAttributes == "object"){
			for (let key in editorParams.elementAttributes){
				if(key.charAt(0) == "+"){
					key = key.slice(1);
					input.setAttribute(key, input.getAttribute(key) + editorParams.elementAttributes["+" + key]);
				}else {
					input.setAttribute(key, editorParams.elementAttributes[key]);
				}
			}
		}
		
		input.value = value;
		
		if(tristate && (typeof value === "undefined" || value === indetermValue || value === "")){
			indetermState = true;
			input.indeterminate = true;
		}
		
		if(this.table.browser != "firefox" && this.table.browser != "safari"){ //prevent blur issue on mac firefox
			onRendered(function(){
				if(cell.getType() === "cell"){
					input.focus({preventScroll: true});
				}
			});
		}
		
		input.checked = trueValueSet ? value === editorParams.trueValue : (value === true || value === "true" || value === "True" || value === 1);
		
		function setValue(blur){
			var checkedValue = input.checked;
			
			if(trueValueSet && checkedValue){
				checkedValue = editorParams.trueValue;
			}else if(falseValueSet && !checkedValue){
				checkedValue = editorParams.falseValue;
			}
			
			if(tristate){
				if(!blur){
					if(input.checked && !indetermState){
						input.checked = false;
						input.indeterminate = true;
						indetermState = true;
						return indetermValue;
					}else {
						indetermState = false;
						return checkedValue;
					}
				}else {
					if(indetermState){
						return indetermValue;
					}else {
						return checkedValue;
					}
				}
			}else {
				return checkedValue;
			}
		}
		
		//submit new value on blur
		input.addEventListener("change", function(e){
			success(setValue());
		});

		input.addEventListener("blur", function(e){
			success(setValue(true));
		});
		
		//submit new value on enter
		input.addEventListener("keydown", function(e){
			if(e.keyCode == 13){
				success(setValue());
			}
			if(e.keyCode == 27){
				cancel();
			}
		});
		
		return input;
	}

	function adaptable$1(cell, onRendered, success, cancel, params){
		var column = cell._getSelf().column,
		lookup, editorFunc, editorParams;
	    
		function defaultLookup(cell){
			var value = cell.getValue(),
			editor = "input";
	        
			switch(typeof value){
				case "number":
					editor = "number";
					break;
	            
				case "boolean":
					editor = "tickCross";
					break;
	            
				case "string":
					if(value.includes("\n")){
						editor = "textarea";
					}
					break;
			}
	        
			return editor;
		}
	    
		lookup = params.editorLookup ? params.editorLookup(cell) : defaultLookup(cell);

		if(params.paramsLookup){
			editorParams = typeof params.paramsLookup === "function" ? params.paramsLookup(lookup, cell) : params.paramsLookup[lookup];
		}

		editorFunc = this.table.modules.edit.lookupEditor(lookup, column);
	    
		return  editorFunc.call(this, cell, onRendered, success, cancel, editorParams || {});
	}

	var defaultEditors = {
		input:input,
		textarea:textarea$1,
		number:number$1,
		range:range,
		date:date$1,
		time:time$1,
		datetime:datetime$2,
		list:list,
		star:star$1,
		progress:progress$1,
		tickCross:tickCross$1,
		adaptable:adaptable$1,
	};

	class Edit extends Module{

		static moduleName = "edit";

		//load defaults
		static editors = defaultEditors;
		
		constructor(table){
			super(table);
			
			this.currentCell = false; //hold currently editing cell
			this.mouseClick = false; //hold mousedown state to prevent click binding being overridden by editor opening
			this.recursionBlock = false; //prevent focus recursion
			this.invalidEdit = false;
			this.editedCells = [];
			this.convertEmptyValues = false;
			
			this.editors = Edit.editors;
		
			this.registerTableOption("editTriggerEvent", "focus");
			this.registerTableOption("editorEmptyValue");
			this.registerTableOption("editorEmptyValueFunc", this.emptyValueCheck.bind(this));

			this.registerColumnOption("editable");
			this.registerColumnOption("editor");
			this.registerColumnOption("editorParams");
			this.registerColumnOption("editorEmptyValue");
			this.registerColumnOption("editorEmptyValueFunc");
			
			this.registerColumnOption("cellEditing");
			this.registerColumnOption("cellEdited");
			this.registerColumnOption("cellEditCancelled");
			
			this.registerTableFunction("getEditedCells", this.getEditedCells.bind(this));
			this.registerTableFunction("clearCellEdited", this.clearCellEdited.bind(this));
			this.registerTableFunction("navigatePrev", this.navigatePrev.bind(this));
			this.registerTableFunction("navigateNext", this.navigateNext.bind(this));
			this.registerTableFunction("navigateLeft", this.navigateLeft.bind(this));
			this.registerTableFunction("navigateRight", this.navigateRight.bind(this));
			this.registerTableFunction("navigateUp", this.navigateUp.bind(this));
			this.registerTableFunction("navigateDown", this.navigateDown.bind(this));
			
			this.registerComponentFunction("cell", "isEdited", this.cellIsEdited.bind(this));
			this.registerComponentFunction("cell", "clearEdited", this.clearEdited.bind(this));
			this.registerComponentFunction("cell", "edit", this.editCell.bind(this));
			this.registerComponentFunction("cell", "cancelEdit", this.cellCancelEdit.bind(this));
			
			this.registerComponentFunction("cell", "navigatePrev", this.navigatePrev.bind(this));
			this.registerComponentFunction("cell", "navigateNext", this.navigateNext.bind(this));
			this.registerComponentFunction("cell", "navigateLeft", this.navigateLeft.bind(this));
			this.registerComponentFunction("cell", "navigateRight", this.navigateRight.bind(this));
			this.registerComponentFunction("cell", "navigateUp", this.navigateUp.bind(this));
			this.registerComponentFunction("cell", "navigateDown", this.navigateDown.bind(this));
		}
		
		initialize(){
			this.subscribe("cell-init", this.bindEditor.bind(this));
			this.subscribe("cell-delete", this.clearEdited.bind(this));
			this.subscribe("cell-value-changed", this.updateCellClass.bind(this));
			this.subscribe("column-layout", this.initializeColumnCheck.bind(this));
			this.subscribe("column-delete", this.columnDeleteCheck.bind(this));
			this.subscribe("row-deleting", this.rowDeleteCheck.bind(this));
			this.subscribe("row-layout", this.rowEditableCheck.bind(this));
			this.subscribe("data-refreshing", this.cancelEdit.bind(this));
			this.subscribe("clipboard-paste", this.pasteBlocker.bind(this));
			
			this.subscribe("keybinding-nav-prev", this.navigatePrev.bind(this, undefined));
			this.subscribe("keybinding-nav-next", this.keybindingNavigateNext.bind(this));
			
			// this.subscribe("keybinding-nav-left", this.navigateLeft.bind(this, undefined));
			// this.subscribe("keybinding-nav-right", this.navigateRight.bind(this, undefined));
			this.subscribe("keybinding-nav-up", this.navigateUp.bind(this, undefined));
			this.subscribe("keybinding-nav-down", this.navigateDown.bind(this, undefined));

			if(Object.keys(this.table.options).includes("editorEmptyValue")){
				this.convertEmptyValues = true;
			}
		}
		
		
		///////////////////////////////////
		///////// Paste Negation //////////
		///////////////////////////////////
		
		pasteBlocker(e){
			if(this.currentCell){
				return true;
			}
		}
		
		
		///////////////////////////////////
		////// Keybinding Functions ///////
		///////////////////////////////////
		
		keybindingNavigateNext(e){
			var cell = this.currentCell,
			newRow = this.options("tabEndNewRow");

			if(cell){
				if(!this.navigateNext(cell, e)){
					if(newRow){
						cell.getElement().firstChild.blur();
						
						if(!this.invalidEdit){
							
							if(newRow === true){
								newRow = this.table.addRow({});
							}else {
								if(typeof newRow == "function"){
									newRow = this.table.addRow(newRow(cell.row.getComponent()));
								}else {
									newRow = this.table.addRow(Object.assign({}, newRow));
								}
							}
							
							newRow.then(() => {
								setTimeout(() => {
									cell.getComponent().navigateNext();
								});
							});
						}
					}
				}
			}
		}
		
		///////////////////////////////////
		///////// Cell Functions //////////
		///////////////////////////////////
		
		cellIsEdited(cell){
			return !! cell.modules.edit && cell.modules.edit.edited;
		}
		
		cellCancelEdit(cell){
			if(cell === this.currentCell){
				this.table.modules.edit.cancelEdit();
			}else {
				console.warn("Cancel Editor Error - This cell is not currently being edited ");
			}
		}
		
		
		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////
		updateCellClass(cell){
			if(this.allowEdit(cell)) {
				cell.getElement().classList.add("tabulator-editable");
			}
			else {
				cell.getElement().classList.remove("tabulator-editable");
			}
		}
		
		clearCellEdited(cells){
			if(!cells){
				cells = this.table.modules.edit.getEditedCells();
			}
			
			if(!Array.isArray(cells)){
				cells = [cells];
			}
			
			cells.forEach((cell) => {
				this.table.modules.edit.clearEdited(cell._getSelf());
			});
		}
		
		navigatePrev(cell = this.currentCell, e){
			var nextCell, prevRow;
			
			if(cell){
				
				if(e){
					e.preventDefault();
				}
				
				nextCell = this.navigateLeft();
				
				if(nextCell){
					return true;
				}else {
					prevRow = this.table.rowManager.prevDisplayRow(cell.row, true);
					
					if(prevRow){
						nextCell = this.findPrevEditableCell(prevRow, prevRow.cells.length);
						
						if(nextCell){
							nextCell.getComponent().edit();
							return true;
						}
					}
				}
			}
			
			return false;
		}
		
		navigateNext(cell = this.currentCell, e){
			var nextCell, nextRow;
			
			if(cell){
				
				if(e){
					e.preventDefault();
				}
				
				nextCell = this.navigateRight();
				
				if(nextCell){
					return true;
				}else {
					nextRow = this.table.rowManager.nextDisplayRow(cell.row, true);
					
					if(nextRow){
						nextCell = this.findNextEditableCell(nextRow, -1);
						
						if(nextCell){
							nextCell.getComponent().edit();
							return true;
						}
					}
				}
			}
			
			return false;
		}
		
		navigateLeft(cell = this.currentCell, e){
			var index, nextCell;
			
			if(cell){
				
				if(e){
					e.preventDefault();
				}
				
				index = cell.getIndex();
				nextCell = this.findPrevEditableCell(cell.row, index);
				
				if(nextCell){
					nextCell.getComponent().edit();
					return true;
				}
			}
			
			return false;
		}
		
		navigateRight(cell = this.currentCell, e){
			var index, nextCell;
			
			if(cell){
				
				if(e){
					e.preventDefault();
				}
				
				index = cell.getIndex();
				nextCell = this.findNextEditableCell(cell.row, index);
				
				if(nextCell){
					nextCell.getComponent().edit();
					return true;
				}
			}
			
			return false;
		}
		
		navigateUp(cell = this.currentCell, e){
			var index, nextRow;
			
			if(cell){
				
				if(e){
					e.preventDefault();
				}
				
				index = cell.getIndex();
				nextRow = this.table.rowManager.prevDisplayRow(cell.row, true);
				
				if(nextRow){
					nextRow.cells[index].getComponent().edit();
					return true;
				}
			}
			
			return false;
		}
		
		navigateDown(cell = this.currentCell, e){
			var index, nextRow;
			
			if(cell){
				
				if(e){
					e.preventDefault();
				}
				
				index = cell.getIndex();
				nextRow = this.table.rowManager.nextDisplayRow(cell.row, true);
				
				if(nextRow){
					nextRow.cells[index].getComponent().edit();
					return true;
				}
			}
			
			return false;
		}
		
		findNextEditableCell(row, index){
			var nextCell = false;
			
			if(index < row.cells.length-1){
				for(var i = index+1; i < row.cells.length; i++){
					let cell = row.cells[i];
					
					if(cell.column.modules.edit && Helpers.elVisible(cell.getElement())){
						let allowEdit = this.allowEdit(cell);
						
						if(allowEdit){
							nextCell = cell;
							break;
						}
					}
				}
			}
			
			return nextCell;
		}
		
		findPrevEditableCell(row, index){
			var prevCell = false;
			
			if(index > 0){
				for(var i = index-1; i >= 0; i--){
					let cell = row.cells[i];
					
					if(cell.column.modules.edit && Helpers.elVisible(cell.getElement())){
						let allowEdit = this.allowEdit(cell);
						
						if(allowEdit){
							prevCell = cell;
							break;
						}
					}
				}
			}
			
			return prevCell;
		}
		
		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////
		
		initializeColumnCheck(column){
			if(typeof column.definition.editor !== "undefined"){
				this.initializeColumn(column);
			}
		}
		
		columnDeleteCheck(column){
			if(this.currentCell && this.currentCell.column === column){
				this.cancelEdit();
			}
		}
		
		rowDeleteCheck(row){
			if(this.currentCell && this.currentCell.row === row){
				this.cancelEdit();
			}
		}
		
		rowEditableCheck(row){
			row.getCells().forEach((cell) => {
				if(cell.column.modules.edit && typeof cell.column.modules.edit.check === "function"){
					this.updateCellClass(cell);
				}
			});
		}
		
		//initialize column editor
		initializeColumn(column){
			var convertEmpty = Object.keys(column.definition).includes("editorEmptyValue");

			var config = {
				editor:false,
				blocked:false,
				check:column.definition.editable,
				params:column.definition.editorParams || {},
				convertEmptyValues:convertEmpty,
				editorEmptyValue:column.definition.editorEmptyValue,
				editorEmptyValueFunc:column.definition.editorEmptyValueFunc,
			};
			
			//set column editor
			config.editor = this.lookupEditor(column.definition.editor, column);
			
			if(config.editor){
				column.modules.edit = config;
			}
		}

		lookupEditor(editor, column){
			var editorFunc;

			switch(typeof editor){
				case "string":
					if(this.editors[editor]){
						editorFunc = this.editors[editor];
					}else {
						console.warn("Editor Error - No such editor found: ", editor);
					}
					break;
				
				case "function":
					editorFunc = editor;
					break;
				
				case "boolean":
					if(editor === true){
						if(typeof column.definition.formatter !== "function"){
							if(this.editors[column.definition.formatter]){
								editorFunc = this.editors[column.definition.formatter];
							}else {
								editorFunc = this.editors["input"];
							}
						}else {
							console.warn("Editor Error - Cannot auto lookup editor for a custom formatter: ", column.definition.formatter);
						}
					}
					break;
			}

			return editorFunc;
		}
		
		getCurrentCell(){
			return this.currentCell ? this.currentCell.getComponent() : false;
		}
		
		clearEditor(cancel){
			var cell = this.currentCell,
			cellEl;
			
			this.invalidEdit = false;
			
			if(cell){
				this.currentCell = false;
				
				cellEl = cell.getElement();
				
				this.dispatch("edit-editor-clear", cell, cancel);
				
				cellEl.classList.remove("tabulator-editing");
				
				while(cellEl.firstChild) cellEl.removeChild(cellEl.firstChild);
				
				cell.row.getElement().classList.remove("tabulator-editing");
				
				cell.table.element.classList.remove("tabulator-editing");
			}
		}
		
		cancelEdit(){
			if(this.currentCell){
				var cell = this.currentCell;
				var component = this.currentCell.getComponent();
				
				this.clearEditor(true);
				cell.setValueActual(cell.getValue());
				cell.cellRendered();
				
				if(cell.column.definition.editor == "textarea" || cell.column.definition.variableHeight){
					cell.row.normalizeHeight(true);
				}
				
				if(cell.column.definition.cellEditCancelled){
					cell.column.definition.cellEditCancelled.call(this.table, component);
				}
				
				this.dispatch("edit-cancelled", cell);
				this.dispatchExternal("cellEditCancelled", component);
			}
		}
		
		//return a formatted value for a cell
		bindEditor(cell){
			if(cell.column.modules.edit){
				var self = this,
				element = cell.getElement(true);
				
				this.updateCellClass(cell);
				element.setAttribute("tabindex", 0);
				
				element.addEventListener("mousedown", function(e){
					if (e.button === 2) {
						e.preventDefault();
					}else {
						self.mouseClick = true;
					}
				});

				if(this.options("editTriggerEvent") === "dblclick"){
					element.addEventListener("dblclick", function(e){
						if(!element.classList.contains("tabulator-editing")){
							element.focus({preventScroll: true});
							self.edit(cell, e, false);
						}
					});
				}
				
				
				if(this.options("editTriggerEvent") === "focus" || this.options("editTriggerEvent") === "click"){
					element.addEventListener("click", function(e){
						if(!element.classList.contains("tabulator-editing")){
							element.focus({preventScroll: true});
							self.edit(cell, e, false);
						}
					});
				}
				
				if(this.options("editTriggerEvent") === "focus"){
					element.addEventListener("focus", function(e){
						if(!self.recursionBlock){
							self.edit(cell, e, false);
						}
					});
				}
			}
		}
		
		focusCellNoEvent(cell, block){
			this.recursionBlock = true;
			
			if(!(block && this.table.browser === "ie")){
				cell.getElement().focus({preventScroll: true});
			}
			
			this.recursionBlock = false;
		}
		
		editCell(cell, forceEdit){
			this.focusCellNoEvent(cell);
			this.edit(cell, false, forceEdit);
		}
		
		focusScrollAdjust(cell){
			if(this.table.rowManager.getRenderMode() == "virtual"){
				var topEdge = this.table.rowManager.element.scrollTop,
				bottomEdge = this.table.rowManager.element.clientHeight + this.table.rowManager.element.scrollTop,
				rowEl = cell.row.getElement();
				
				if(rowEl.offsetTop < topEdge){
					this.table.rowManager.element.scrollTop -= (topEdge - rowEl.offsetTop);
				}else {
					if(rowEl.offsetTop + rowEl.offsetHeight  > bottomEdge){
						this.table.rowManager.element.scrollTop += (rowEl.offsetTop + rowEl.offsetHeight - bottomEdge);
					}
				}
				
				var leftEdge = this.table.rowManager.element.scrollLeft,
				rightEdge = this.table.rowManager.element.clientWidth + this.table.rowManager.element.scrollLeft,
				cellEl = cell.getElement();
				
				if(this.table.modExists("frozenColumns")){
					leftEdge += parseInt(this.table.modules.frozenColumns.leftMargin || 0);
					rightEdge -= parseInt(this.table.modules.frozenColumns.rightMargin || 0);
				}
				
				if(this.table.options.renderHorizontal === "virtual"){
					leftEdge -= parseInt(this.table.columnManager.renderer.vDomPadLeft);
					rightEdge -= parseInt(this.table.columnManager.renderer.vDomPadLeft);
				}
				
				if(cellEl.offsetLeft < leftEdge){
					this.table.rowManager.element.scrollLeft -= (leftEdge - cellEl.offsetLeft);
				}else {
					if(cellEl.offsetLeft + cellEl.offsetWidth  > rightEdge){
						this.table.rowManager.element.scrollLeft += (cellEl.offsetLeft + cellEl.offsetWidth - rightEdge);
					}
				}
			}
		}
		
		allowEdit(cell) {
			var check = cell.column.modules.edit ? true : false;
			
			if(cell.column.modules.edit){
				switch(typeof cell.column.modules.edit.check){
					case "function":
						if(cell.row.initialized){
							check = cell.column.modules.edit.check(cell.getComponent());
						}
						break;
					
					case "string":
						check = !!cell.row.data[cell.column.modules.edit.check];
						break;
					
					case "boolean":
						check = cell.column.modules.edit.check;
						break;
				}
			}
			
			return check;
		}
		
		edit(cell, e, forceEdit){
			var self = this,
			allowEdit = true,
			rendered = function(){},
			element = cell.getElement(),
			editFinished = false,
			cellEditor, component, params;

			//prevent editing if another cell is refusing to leave focus (eg. validation fail)
			
			if(this.currentCell){
				if(!this.invalidEdit && this.currentCell !== cell){
					this.cancelEdit();
				}
				return;
			}
			
			//handle successful value change
			function success(value){
				if(self.currentCell === cell && !editFinished){
					var valid = self.chain("edit-success", [cell, value], true, true);

					if(valid === true || self.table.options.validationMode === "highlight"){

						editFinished = true;

						self.clearEditor();
						
						if(!cell.modules.edit){
							cell.modules.edit = {};
						}
						
						cell.modules.edit.edited = true;
						
						if(self.editedCells.indexOf(cell) == -1){
							self.editedCells.push(cell);
						}

						value = self.transformEmptyValues(value, cell);
						
						cell.setValue(value, true);

						return valid === true;
					}else {
						editFinished = true;
						self.invalidEdit = true;
						self.focusCellNoEvent(cell, true);
						rendered();

						setTimeout(() => {
							editFinished = false;
						}, 10);
						return false;
					}
				}
			}
			
			//handle aborted edit
			function cancel(){
				// editFinished = true;

				if(self.currentCell === cell && !editFinished){
					self.cancelEdit();
				}
			}
			
			function onRendered(callback){
				rendered = callback;
			}
			
			if(!cell.column.modules.edit.blocked){
				if(e){
					e.stopPropagation();
				}
				
				allowEdit = this.allowEdit(cell);
				
				if(allowEdit || forceEdit){
					self.cancelEdit();
					
					self.currentCell = cell;
					
					this.focusScrollAdjust(cell);
					
					component = cell.getComponent();
					
					if(this.mouseClick){
						this.mouseClick = false;
						
						if(cell.column.definition.cellClick){
							cell.column.definition.cellClick.call(this.table, e, component);
						}
					}
					
					if(cell.column.definition.cellEditing){
						cell.column.definition.cellEditing.call(this.table, component);
					}
					
					this.dispatch("cell-editing", cell);
					this.dispatchExternal("cellEditing", component);
					
					params = typeof cell.column.modules.edit.params === "function" ? cell.column.modules.edit.params(component) : cell.column.modules.edit.params;
					
					cellEditor = cell.column.modules.edit.editor.call(self, component, onRendered, success, cancel, params);
					
					//if editor returned, add to DOM, if false, abort edit
					if(this.currentCell && cellEditor !== false){
						if(cellEditor instanceof Node){
							element.classList.add("tabulator-editing");
							cell.row.getElement().classList.add("tabulator-editing");
							cell.table.element.classList.add("tabulator-editing");
							while(element.firstChild) element.removeChild(element.firstChild);
							element.appendChild(cellEditor);
							
							//trigger onRendered Callback
							rendered();
							
							//prevent editing from triggering rowClick event
							var children = element.children;
							
							for (var i = 0; i < children.length; i++) {
								children[i].addEventListener("click", function(e){
									e.stopPropagation();
								});
							}
						}else {
							console.warn("Edit Error - Editor should return an instance of Node, the editor returned:", cellEditor);
							this.blur(element);
							return false;
						}
					}else {
						this.blur(element);
						return false;
					}
					
					return true;
				}else {
					this.mouseClick = false;
					this.blur(element);
					return false;
				}
			}else {
				this.mouseClick = false;
				this.blur(element);
				return false;
			}
		}

		emptyValueCheck(value){
			return value === "" || value === null || typeof value === "undefined";
		}

		transformEmptyValues(value, cell){
			var mod = cell.column.modules.edit, 
			convert = mod.convertEmptyValues || this.convertEmptyValues,
			checkFunc;
			
			if(convert){
				checkFunc = mod.editorEmptyValueFunc || this.options("editorEmptyValueFunc");

				if(checkFunc && checkFunc(value)){
					value = mod.convertEmptyValues ? mod.editorEmptyValue : this.options("editorEmptyValue");
				}
			}
			
			return value;
		}
		
		blur(element){
			if(!this.confirm("edit-blur", [element]) ){
				element.blur();
			}
		}
		
		getEditedCells(){
			var output = [];
			
			this.editedCells.forEach((cell) => {
				output.push(cell.getComponent());
			});
			
			return output;
		}
		
		clearEdited(cell){
			var editIndex;
			
			if(cell.modules.edit && cell.modules.edit.edited){
				cell.modules.edit.edited = false;
				
				this.dispatch("edit-edited-clear", cell);
			}
			
			editIndex = this.editedCells.indexOf(cell);
			
			if(editIndex > -1){
				this.editedCells.splice(editIndex, 1);
			}
		}
	}

	class ExportRow{
		constructor(type, columns, component, indent){
			this.type = type;
			this.columns = columns;
			this.component = component || false;
			this.indent = indent || 0;
		}
	}

	class ExportColumn{
		constructor(value, component, width, height, depth){
			this.value = value;
			this.component = component || false;
			this.width = width;
			this.height = height;
			this.depth = depth;
		}
	}

	var columnLookups$1 = {

	};

	var rowLookups$1 = {
		visible:function(){
			return this.rowManager.getVisibleRows(false, true);
		},
		all:function(){
			return this.rowManager.rows;
		},
		selected:function(){
			return this.modules.selectRow.selectedRows;
		},
		active:function(){
			if(this.options.pagination){
				return this.rowManager.getDisplayRows(this.rowManager.displayRows.length - 2);
			}else {
				return this.rowManager.getDisplayRows();
			}
		},
	};

	class Export extends Module{

		static moduleName = "export";

		static columnLookups = columnLookups$1;
		static rowLookups = rowLookups$1;
		
		constructor(table){
			super(table);
			
			this.config = {};
			this.cloneTableStyle = true;
			this.colVisProp = "";
			this.colVisPropAttach = "";
			
			this.registerTableOption("htmlOutputConfig", false); //html output config
			
			this.registerColumnOption("htmlOutput");
			this.registerColumnOption("titleHtmlOutput");
		}
		
		initialize(){
			this.registerTableFunction("getHtml", this.getHtml.bind(this));
		}
		
		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////
		
		generateExportList(config, style, range, colVisProp){
			var headers, body, columns, colLookup;

			this.cloneTableStyle = style;
			this.config = config || {};
			this.colVisProp = colVisProp;
			this.colVisPropAttach = this.colVisProp.charAt(0).toUpperCase() + this.colVisProp.slice(1);

			colLookup = Export.columnLookups[range];

			if(colLookup){
				columns = colLookup.call(this.table);
				columns = columns.filter(col => this.columnVisCheck(col));
			}

			headers = this.config.columnHeaders !== false ? this.headersToExportRows(this.generateColumnGroupHeaders(columns)) : [];

			if(columns){
				columns = columns.map(col => col.getComponent());
			}
			
			body = this.bodyToExportRows(this.rowLookup(range), columns);

			return headers.concat(body);
		}
		
		generateTable(config, style, range, colVisProp){
			var list = this.generateExportList(config, style, range, colVisProp);
			
			return this.generateTableElement(list);
		}
		
		rowLookup(range){
			var rows = [], 
			rowLookup;
			
			if(typeof range == "function"){
				range.call(this.table).forEach((row) =>{
					row = this.table.rowManager.findRow(row);
					
					if(row){
						rows.push(row);
					}
				});
			}else {
				rowLookup = Export.rowLookups[range] || Export.rowLookups["active"];

				rows = rowLookup.call(this.table);
			}
			
			return Object.assign([], rows);
		}
		
		generateColumnGroupHeaders(columns){
			var output = [];
			
			if (!columns) {
				columns = this.config.columnGroups !== false ? this.table.columnManager.columns : this.table.columnManager.columnsByIndex;
			}
			
			columns.forEach((column) => {
				var colData = this.processColumnGroup(column);
				
				if(colData){
					output.push(colData);
				}
			});



			return output;
		}
		
		processColumnGroup(column){
			var subGroups = column.columns,
			maxDepth = 0,
			title = column.definition["title" + (this.colVisPropAttach)] || column.definition.title;
			
			var groupData = {
				title:title,
				column:column,
				depth:1,
			};
			
			if(subGroups.length){
				groupData.subGroups = [];
				groupData.width = 0;
				
				subGroups.forEach((subGroup) => {
					var subGroupData = this.processColumnGroup(subGroup);
					
					if(subGroupData){
						groupData.width += subGroupData.width;
						groupData.subGroups.push(subGroupData);
						
						if(subGroupData.depth > maxDepth){
							maxDepth = subGroupData.depth;
						}
					}
				});
				
				groupData.depth += maxDepth;
				
				if(!groupData.width){
					return false;
				}
			}else {
				if(this.columnVisCheck(column)){
					groupData.width = 1;
				}else {
					return false;
				}
			}
			
			return groupData;
		}
		
		columnVisCheck(column){
			var visProp = column.definition[this.colVisProp];

			if(this.config.rowHeaders === false && column.isRowHeader){
				return false;
			}
			
			if(typeof visProp === "function"){
				visProp = visProp.call(this.table, column.getComponent());
			}

			if(visProp === false || visProp === true){
				return visProp;
			}

			return column.visible && column.field;
		}
		
		headersToExportRows(columns){
			var headers = [],
			headerDepth = 0,
			exportRows = [];
			
			function parseColumnGroup(column, level){
				
				var depth = headerDepth - level;
				
				if(typeof headers[level] === "undefined"){
					headers[level] = [];
				}
				
				column.height = column.subGroups ? 1 : (depth - column.depth) + 1;
				
				headers[level].push(column);
				
				if(column.height > 1){
					for(let i = 1; i < column.height; i ++){
						
						if(typeof headers[level + i] === "undefined"){
							headers[level + i] = [];
						}
						
						headers[level + i].push(false);
					}
				}
				
				if(column.width > 1){
					for(let i = 1; i < column.width; i ++){
						headers[level].push(false);
					}
				}
				
				if(column.subGroups){
					column.subGroups.forEach(function(subGroup){
						parseColumnGroup(subGroup, level+1);
					});
				}
			}
			
			//calculate maximum header depth
			columns.forEach(function(column){
				if(column.depth > headerDepth){
					headerDepth = column.depth;
				}
			});
			
			columns.forEach(function(column){
				parseColumnGroup(column,0);
			});
			
			headers.forEach((header) => {
				var columns = [];
				
				header.forEach((col) => {
					if(col){
						let title = typeof col.title === "undefined" ? "" : col.title;
						columns.push(new ExportColumn(title, col.column.getComponent(), col.width, col.height, col.depth));
					}else {
						columns.push(null);
					}
				});
				
				exportRows.push(new ExportRow("header", columns));
			});
			
			return exportRows;
		}
		
		bodyToExportRows(rows, columns = []){
			var exportRows = [];
			
			if (columns.length === 0) {
				this.table.columnManager.columnsByIndex.forEach((column) => {
					if (this.columnVisCheck(column)) {
						columns.push(column.getComponent());
					}
				});
			}
			
			if(this.config.columnCalcs !== false && this.table.modExists("columnCalcs")){
				if(this.table.modules.columnCalcs.topInitialized){
					rows.unshift(this.table.modules.columnCalcs.topRow);
				}
				
				if(this.table.modules.columnCalcs.botInitialized){
					rows.push(this.table.modules.columnCalcs.botRow);
				}
			}

			rows = rows.filter((row) => {
				switch(row.type){
					case "group":
						return this.config.rowGroups !== false;
					
					case "calc":
						return this.config.columnCalcs !== false;
					
					case "row":
						return !(this.table.options.dataTree && this.config.dataTree === false && row.modules.dataTree.parent);
				}
				
				return true;
			});
			
			rows.forEach((row, i) => {
				var rowData = row.getData(this.colVisProp);
				var exportCols = [];
				var indent = 0;
				
				switch(row.type){
					case "group":
						indent = row.level;
						exportCols.push(new ExportColumn(row.key, row.getComponent(), columns.length, 1));
						break;
					
					case "calc" :
					case "row" :
						columns.forEach((col) => {
							exportCols.push(new ExportColumn(col._column.getFieldValue(rowData), col, 1, 1));
						});
					
						if(this.table.options.dataTree && this.config.dataTree !== false){
							indent = row.modules.dataTree.index;
						}
						break;
				}
				
				exportRows.push(new ExportRow(row.type, exportCols, row.getComponent(), indent));
			});
			
			return exportRows;
		}
		
		generateTableElement(list){
			var table = document.createElement("table"),
			headerEl = document.createElement("thead"),
			bodyEl = document.createElement("tbody"),
			styles = this.lookupTableStyles(),
			rowFormatter = this.table.options["rowFormatter" + (this.colVisPropAttach)],
			setup = {};
			
			setup.rowFormatter = rowFormatter !== null ? rowFormatter : this.table.options.rowFormatter;
			
			if(this.table.options.dataTree &&this.config.dataTree !== false && this.table.modExists("columnCalcs")){
				setup.treeElementField = this.table.modules.dataTree.elementField;
			}
			
			//assign group header formatter
			setup.groupHeader = this.table.options["groupHeader" + (this.colVisPropAttach)];
			
			if(setup.groupHeader && !Array.isArray(setup.groupHeader)){
				setup.groupHeader = [setup.groupHeader];
			}
			
			table.classList.add("tabulator-print-table");
			
			this.mapElementStyles(this.table.columnManager.getHeadersElement(), headerEl, ["border-top", "border-left", "border-right", "border-bottom", "background-color", "color", "font-weight", "font-family", "font-size"]);

			if(list.length > 1000){
				console.warn("It may take a long time to render an HTML table with more than 1000 rows");
			}
			
			list.forEach((row, i) => {
				let rowEl;
				
				switch(row.type){
					case "header":
						headerEl.appendChild(this.generateHeaderElement(row, setup, styles));
						break;
					
					case "group":
						bodyEl.appendChild(this.generateGroupElement(row, setup, styles));
						break;
					
					case "calc":
						bodyEl.appendChild(this.generateCalcElement(row, setup, styles));
						break;
					
					case "row":
						rowEl = this.generateRowElement(row, setup, styles);
					
						this.mapElementStyles(((i % 2) && styles.evenRow) ? styles.evenRow : styles.oddRow, rowEl, ["border-top", "border-left", "border-right", "border-bottom", "color", "font-weight", "font-family", "font-size", "background-color"]);
						bodyEl.appendChild(rowEl);
						break;
				}
			});
			
			if(headerEl.innerHTML){
				table.appendChild(headerEl);
			}
			
			table.appendChild(bodyEl);
			
			
			this.mapElementStyles(this.table.element, table, ["border-top", "border-left", "border-right", "border-bottom"]);
			return table;
		}
		
		lookupTableStyles(){
			var styles = {};
			
			//lookup row styles
			if(this.cloneTableStyle && window.getComputedStyle){
				styles.oddRow = this.table.element.querySelector(".tabulator-row-odd:not(.tabulator-group):not(.tabulator-calcs)");
				styles.evenRow = this.table.element.querySelector(".tabulator-row-even:not(.tabulator-group):not(.tabulator-calcs)");
				styles.calcRow = this.table.element.querySelector(".tabulator-row.tabulator-calcs");
				styles.firstRow = this.table.element.querySelector(".tabulator-row:not(.tabulator-group):not(.tabulator-calcs)");
				styles.firstGroup = this.table.element.getElementsByClassName("tabulator-group")[0];
				
				if(styles.firstRow){
					styles.styleCells = styles.firstRow.getElementsByClassName("tabulator-cell");
					styles.styleRowHeader = styles.firstRow.getElementsByClassName("tabulator-row-header")[0];
					styles.firstCell = styles.styleCells[0];
					styles.lastCell = styles.styleCells[styles.styleCells.length - 1];
				}
			}
			
			return styles;
		}
		
		generateHeaderElement(row, setup, styles){
			var rowEl = document.createElement("tr");
			
			row.columns.forEach((column) => {
				if(column){
					var cellEl = document.createElement("th");
					var classNames = column.component._column.definition.cssClass ? column.component._column.definition.cssClass.split(" ") : [];
					
					cellEl.colSpan = column.width;
					cellEl.rowSpan = column.height;
					
					cellEl.innerHTML = column.value;
					
					if(this.cloneTableStyle){
						cellEl.style.boxSizing = "border-box";
					}
					
					classNames.forEach(function(className) {
						cellEl.classList.add(className);
					});
					
					this.mapElementStyles(column.component.getElement(), cellEl, ["text-align", "border-left", "border-right", "background-color", "color", "font-weight", "font-family", "font-size"]);
					this.mapElementStyles(column.component._column.contentElement, cellEl, ["padding-top", "padding-left", "padding-right", "padding-bottom"]);
			
					if(column.component._column.visible){
						this.mapElementStyles(column.component.getElement(), cellEl, ["width"]);
					}else {
						if(column.component._column.definition.width){
							cellEl.style.width = column.component._column.definition.width + "px";
						}
					}
					
					if(column.component._column.parent && column.component._column.parent.isGroup){
						this.mapElementStyles(column.component._column.parent.groupElement, cellEl, ["border-top"]);
					}else {
						this.mapElementStyles(column.component.getElement(), cellEl, ["border-top"]);
					}
					
					if(column.component._column.isGroup){
						this.mapElementStyles(column.component.getElement(), cellEl, ["border-bottom"]);
					}else {
						this.mapElementStyles(this.table.columnManager.getElement(), cellEl, ["border-bottom"]);
					}
					
					rowEl.appendChild(cellEl);
				}
			});
			
			return rowEl;
		}
		
		generateGroupElement(row, setup, styles){
			
			var rowEl = document.createElement("tr"),
			cellEl = document.createElement("td"),
			group = row.columns[0];
			
			rowEl.classList.add("tabulator-print-table-row");
			
			if(setup.groupHeader && setup.groupHeader[row.indent]){
				group.value = setup.groupHeader[row.indent](group.value, row.component._group.getRowCount(), row.component._group.getData(), row.component);
			}else {
				if(setup.groupHeader !== false){
					group.value = row.component._group.generator(group.value, row.component._group.getRowCount(), row.component._group.getData(), row.component);
				}
			}
			
			cellEl.colSpan = group.width;
			cellEl.innerHTML = group.value;
			
			rowEl.classList.add("tabulator-print-table-group");
			rowEl.classList.add("tabulator-group-level-" + row.indent);
			
			if(group.component.isVisible()){
				rowEl.classList.add("tabulator-group-visible");
			}
			
			this.mapElementStyles(styles.firstGroup, rowEl, ["border-top", "border-left", "border-right", "border-bottom", "color", "font-weight", "font-family", "font-size", "background-color"]);
			this.mapElementStyles(styles.firstGroup, cellEl, ["padding-top", "padding-left", "padding-right", "padding-bottom"]);
			
			rowEl.appendChild(cellEl);
			
			return rowEl;
		}
		
		generateCalcElement(row, setup, styles){
			var rowEl = this.generateRowElement(row, setup, styles);
			
			rowEl.classList.add("tabulator-print-table-calcs");
			this.mapElementStyles(styles.calcRow, rowEl, ["border-top", "border-left", "border-right", "border-bottom", "color", "font-weight", "font-family", "font-size", "background-color"]);
			
			return rowEl;
		}
		
		generateRowElement(row, setup, styles){
			var rowEl = document.createElement("tr");
			
			rowEl.classList.add("tabulator-print-table-row");
			
			row.columns.forEach((col, i) => {
				if(col){
					var cellEl = document.createElement("td"),
					column = col.component._column,
					table =  this.table,
					index = table.columnManager.findColumnIndex(column),
					value = col.value,
					cellStyle, styleProps;
					
					var cellWrapper = {
						modules:{},
						getValue:function(){
							return value;
						},
						getField:function(){
							return column.definition.field;
						},
						getElement:function(){
							return cellEl;
						},
						getType:function(){
							return "cell";
						},
						getColumn:function(){
							return column.getComponent();
						},
						getData:function(){
							return row.component.getData();
						},
						getRow:function(){
							return row.component;
						},
						getTable:function(){
							return table;
						},
						getComponent:function(){
							return cellWrapper;
						},
						column:column,
					};
					
					var classNames = column.definition.cssClass ? column.definition.cssClass.split(" ") : [];
					
					classNames.forEach(function(className) {
						cellEl.classList.add(className);
					});
					
					if(this.table.modExists("format") && this.config.formatCells !== false){
						value = this.table.modules.format.formatExportValue(cellWrapper, this.colVisProp);
					}else {
						switch(typeof value){
							case "object":
								value = value !== null ? JSON.stringify(value) : "";
								break;
							
							case "undefined":
								value = "";
								break;
						}
					}
					
					if(value instanceof Node){
						cellEl.appendChild(value);
					}else {
						cellEl.innerHTML = value;
					}

					styleProps = ["padding-top", "padding-left", "padding-right", "padding-bottom", "border-top", "border-left", "border-right", "border-bottom", "color", "font-weight", "font-family", "font-size", "text-align"];

					if(column.isRowHeader){
						cellStyle = styles.styleRowHeader;
						styleProps.push("background-color");
					}else {
						cellStyle = styles.styleCells && styles.styleCells[index] ? styles.styleCells[index] : styles.firstCell;
					}
					
					if(cellStyle){
						this.mapElementStyles(cellStyle, cellEl, styleProps);
						
						if(column.definition.align){
							cellEl.style.textAlign = column.definition.align;
						}
					}
					
					if(this.table.options.dataTree && this.config.dataTree !== false){
						if((setup.treeElementField && setup.treeElementField == column.field) || (!setup.treeElementField && i == 0)){
							if(row.component._row.modules.dataTree.controlEl){
								cellEl.insertBefore(row.component._row.modules.dataTree.controlEl.cloneNode(true), cellEl.firstChild);
							}
							if(row.component._row.modules.dataTree.branchEl){
								cellEl.insertBefore(row.component._row.modules.dataTree.branchEl.cloneNode(true), cellEl.firstChild);
							}
						}
					}
					
					rowEl.appendChild(cellEl);
					
					if(cellWrapper.modules.format && cellWrapper.modules.format.renderedCallback){
						cellWrapper.modules.format.renderedCallback();
					}
				}
			});
			
			if(setup.rowFormatter && row.type === "row" && this.config.formatCells !== false){
				let formatComponent = Object.assign(row.component);

				formatComponent.getElement = function(){return rowEl;};

				setup.rowFormatter(row.component);
			}
			
			return rowEl;
		}
		
		generateHTMLTable(list){
			var holder = document.createElement("div");
			
			holder.appendChild(this.generateTableElement(list));
			
			return holder.innerHTML;
		}
		
		getHtml(visible, style, config, colVisProp){
			var list = this.generateExportList(config || this.table.options.htmlOutputConfig, style, visible, colVisProp || "htmlOutput");
			
			return this.generateHTMLTable(list);
		}
		
		mapElementStyles(from, to, props){
			if(this.cloneTableStyle && from && to){
				
				var lookup = {
					"background-color" : "backgroundColor",
					"color" : "fontColor",
					"width" : "width",
					"font-weight" : "fontWeight",
					"font-family" : "fontFamily",
					"font-size" : "fontSize",
					"text-align" : "textAlign",
					"border-top" : "borderTop",
					"border-left" : "borderLeft",
					"border-right" : "borderRight",
					"border-bottom" : "borderBottom",
					"padding-top" : "paddingTop",
					"padding-left" : "paddingLeft",
					"padding-right" : "paddingRight",
					"padding-bottom" : "paddingBottom",
				};
				
				if(window.getComputedStyle){
					var fromStyle = window.getComputedStyle(from);

					props.forEach(function(prop){
						if(!to.style[lookup[prop]]){
							to.style[lookup[prop]] = fromStyle.getPropertyValue(prop);
						}
					});
				}
			}
		}
	}

	var defaultFilters = {

		//equal to
		"=":function(filterVal, rowVal, rowData, filterParams){
			return rowVal == filterVal ? true : false;
		},

		//less than
		"<":function(filterVal, rowVal, rowData, filterParams){
			return rowVal < filterVal ? true : false;
		},

		//less than or equal to
		"<=":function(filterVal, rowVal, rowData, filterParams){
			return rowVal <= filterVal ? true : false;
		},

		//greater than
		">":function(filterVal, rowVal, rowData, filterParams){
			return rowVal > filterVal ? true : false;
		},

		//greater than or equal to
		">=":function(filterVal, rowVal, rowData, filterParams){
			return rowVal >= filterVal ? true : false;
		},

		//not equal to
		"!=":function(filterVal, rowVal, rowData, filterParams){
			return rowVal != filterVal ? true : false;
		},

		"regex":function(filterVal, rowVal, rowData, filterParams){

			if(typeof filterVal == "string"){
				filterVal = new RegExp(filterVal);
			}

			return filterVal.test(rowVal);
		},

		//contains the string
		"like":function(filterVal, rowVal, rowData, filterParams){
			if(filterVal === null || typeof filterVal === "undefined"){
				return rowVal === filterVal ? true : false;
			}else {
				if(typeof rowVal !== 'undefined' && rowVal !== null){
					return String(rowVal).toLowerCase().indexOf(filterVal.toLowerCase()) > -1;
				}
				else {
					return false;
				}
			}
		},

		//contains the keywords
		"keywords":function(filterVal, rowVal, rowData, filterParams){
			var keywords = filterVal.toLowerCase().split(typeof filterParams.separator === "undefined" ? " " : filterParams.separator),
			value = String(rowVal === null || typeof rowVal === "undefined" ? "" : rowVal).toLowerCase(),
			matches = [];

			keywords.forEach((keyword) =>{
				if(value.includes(keyword)){
					matches.push(true);
				}
			});

			return filterParams.matchAll ? matches.length === keywords.length : !!matches.length;
		},

		//starts with the string
		"starts":function(filterVal, rowVal, rowData, filterParams){
			if(filterVal === null || typeof filterVal === "undefined"){
				return rowVal === filterVal ? true : false;
			}else {
				if(typeof rowVal !== 'undefined' && rowVal !== null){
					return String(rowVal).toLowerCase().startsWith(filterVal.toLowerCase());
				}
				else {
					return false;
				}
			}
		},

		//ends with the string
		"ends":function(filterVal, rowVal, rowData, filterParams){
			if(filterVal === null || typeof filterVal === "undefined"){
				return rowVal === filterVal ? true : false;
			}else {
				if(typeof rowVal !== 'undefined' && rowVal !== null){
					return String(rowVal).toLowerCase().endsWith(filterVal.toLowerCase());
				}
				else {
					return false;
				}
			}
		},

		//in array
		"in":function(filterVal, rowVal, rowData, filterParams){
			if(Array.isArray(filterVal)){
				return filterVal.length ? filterVal.indexOf(rowVal) > -1 : true;
			}else {
				console.warn("Filter Error - filter value is not an array:", filterVal);
				return false;
			}
		},
	};

	class Filter extends Module{

		static moduleName = "filter";

		//load defaults
		static filters = defaultFilters;

		constructor(table){
			super(table);

			this.filterList = []; //hold filter list
			this.headerFilters = {}; //hold column filters
			this.headerFilterColumns = []; //hold columns that use header filters

			this.prevHeaderFilterChangeCheck = "";
			this.prevHeaderFilterChangeCheck = "{}";

			this.changed = false; //has filtering changed since last render
			this.tableInitialized = false;

			this.registerTableOption("filterMode", "local"); //local or remote filtering

			this.registerTableOption("initialFilter", false); //initial filtering criteria
			this.registerTableOption("initialHeaderFilter", false); //initial header filtering criteria
			this.registerTableOption("headerFilterLiveFilterDelay", 300); //delay before updating column after user types in header filter
			this.registerTableOption("placeholderHeaderFilter", false); //placeholder when header filter is empty

			this.registerColumnOption("headerFilter");
			this.registerColumnOption("headerFilterPlaceholder");
			this.registerColumnOption("headerFilterParams");
			this.registerColumnOption("headerFilterEmptyCheck");
			this.registerColumnOption("headerFilterFunc");
			this.registerColumnOption("headerFilterFuncParams");
			this.registerColumnOption("headerFilterLiveFilter");

			this.registerTableFunction("searchRows", this.searchRows.bind(this));
			this.registerTableFunction("searchData", this.searchData.bind(this));

			this.registerTableFunction("setFilter", this.userSetFilter.bind(this));
			this.registerTableFunction("refreshFilter", this.userRefreshFilter.bind(this));
			this.registerTableFunction("addFilter", this.userAddFilter.bind(this));
			this.registerTableFunction("getFilters", this.getFilters.bind(this));
			this.registerTableFunction("setHeaderFilterFocus", this.userSetHeaderFilterFocus.bind(this));
			this.registerTableFunction("getHeaderFilterValue", this.userGetHeaderFilterValue.bind(this));
			this.registerTableFunction("setHeaderFilterValue", this.userSetHeaderFilterValue.bind(this));
			this.registerTableFunction("getHeaderFilters", this.getHeaderFilters.bind(this));
			this.registerTableFunction("removeFilter", this.userRemoveFilter.bind(this));
			this.registerTableFunction("clearFilter", this.userClearFilter.bind(this));
			this.registerTableFunction("clearHeaderFilter", this.userClearHeaderFilter.bind(this));

			this.registerComponentFunction("column", "headerFilterFocus", this.setHeaderFilterFocus.bind(this));
			this.registerComponentFunction("column", "reloadHeaderFilter", this.reloadHeaderFilter.bind(this));
			this.registerComponentFunction("column", "getHeaderFilterValue", this.getHeaderFilterValue.bind(this));
			this.registerComponentFunction("column", "setHeaderFilterValue", this.setHeaderFilterValue.bind(this));
		}

		initialize(){
			this.subscribe("column-init", this.initializeColumnHeaderFilter.bind(this));
			this.subscribe("column-width-fit-before", this.hideHeaderFilterElements.bind(this));
			this.subscribe("column-width-fit-after", this.showHeaderFilterElements.bind(this));
			this.subscribe("table-built", this.tableBuilt.bind(this));
			this.subscribe("placeholder", this.generatePlaceholder.bind(this));

			if(this.table.options.filterMode === "remote"){
				this.subscribe("data-params", this.remoteFilterParams.bind(this));
			}

			this.registerDataHandler(this.filter.bind(this), 10);
		}

		tableBuilt(){
			if(this.table.options.initialFilter){
				this.setFilter(this.table.options.initialFilter);
			}

			if(this.table.options.initialHeaderFilter){
				this.table.options.initialHeaderFilter.forEach((item) => {

					var column = this.table.columnManager.findColumn(item.field);

					if(column){
						this.setHeaderFilterValue(column, item.value);
					}else {
						console.warn("Column Filter Error - No matching column found:", item.field);
						return false;
					}
				});
			}

			this.tableInitialized = true;
		}

		remoteFilterParams(data, config, silent, params){
			params.filter = this.getFilters(true, true);
			return params;
		}

		generatePlaceholder(text){
			if(this.table.options.placeholderHeaderFilter && Object.keys(this.headerFilters).length){
				return this.table.options.placeholderHeaderFilter;
			}
		}

		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////

		//set standard filters
		userSetFilter(field, type, value, params){
			this.setFilter(field, type, value, params);
			this.refreshFilter();
		}

		//set standard filters
		userRefreshFilter(){
			this.refreshFilter();
		}

		//add filter to array
		userAddFilter(field, type, value, params){
			this.addFilter(field, type, value, params);
			this.refreshFilter();
		}

		userSetHeaderFilterFocus(field){
			var column = this.table.columnManager.findColumn(field);

			if(column){
				this.setHeaderFilterFocus(column);
			}else {
				console.warn("Column Filter Focus Error - No matching column found:", field);
				return false;
			}
		}

		userGetHeaderFilterValue(field) {
			var column = this.table.columnManager.findColumn(field);

			if(column){
				return this.getHeaderFilterValue(column);
			}else {
				console.warn("Column Filter Error - No matching column found:", field);
			}
		}

		userSetHeaderFilterValue(field, value){
			var column = this.table.columnManager.findColumn(field);

			if(column){
				this.setHeaderFilterValue(column, value);
			}else {
				console.warn("Column Filter Error - No matching column found:", field);
				return false;
			}
		}

		//remove filter from array
		userRemoveFilter(field, type, value){
			this.removeFilter(field, type, value);
			this.refreshFilter();
		}

		//clear filters
		userClearFilter(all){
			this.clearFilter(all);
			this.refreshFilter();
		}

		//clear header filters
		userClearHeaderFilter(){
			this.clearHeaderFilter();
			this.refreshFilter();
		}


		//search for specific row components
		searchRows(field, type, value){
			return this.search("rows", field, type, value);
		}

		//search for specific data
		searchData(field, type, value){
			return this.search("data", field, type, value);
		}

		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////

		initializeColumnHeaderFilter(column){
			var def = column.definition;

			if(def.headerFilter){
				this.initializeColumn(column);
			}
		}

		//initialize column header filter
		initializeColumn(column, value){
			var self = this,
			field = column.getField();

			//handle successfully value change
			function success(value){
				var filterType = (column.modules.filter.tagType == "input" && column.modules.filter.attrType == "text") || column.modules.filter.tagType == "textarea" ? "partial" : "match",
				type = "",
				filterChangeCheck = "",
				filterFunc;

				if(typeof column.modules.filter.prevSuccess === "undefined" || column.modules.filter.prevSuccess !== value){

					column.modules.filter.prevSuccess = value;

					if(!column.modules.filter.emptyFunc(value)){
						column.modules.filter.value = value;

						switch(typeof column.definition.headerFilterFunc){
							case "string":
								if(Filter.filters[column.definition.headerFilterFunc]){
									type = column.definition.headerFilterFunc;
									filterFunc = function(data){
										var params = column.definition.headerFilterFuncParams || {};
										var fieldVal = column.getFieldValue(data);

										params = typeof params === "function" ? params(value, fieldVal, data) : params;

										return Filter.filters[column.definition.headerFilterFunc](value, fieldVal, data, params);
									};
								}else {
									console.warn("Header Filter Error - Matching filter function not found: ", column.definition.headerFilterFunc);
								}
								break;

							case "function":
								filterFunc = function(data){
									var params = column.definition.headerFilterFuncParams || {};
									var fieldVal = column.getFieldValue(data);

									params = typeof params === "function" ? params(value, fieldVal, data) : params;

									return column.definition.headerFilterFunc(value, fieldVal, data, params);
								};

								type = filterFunc;
								break;
						}

						if(!filterFunc){
							switch(filterType){
								case "partial":
									filterFunc = function(data){
										var colVal = column.getFieldValue(data);

										if(typeof colVal !== 'undefined' && colVal !== null){
											return String(colVal).toLowerCase().indexOf(String(value).toLowerCase()) > -1;
										}else {
											return false;
										}
									};
									type = "like";
									break;

								default:
									filterFunc = function(data){
										return column.getFieldValue(data) == value;
									};
									type = "=";
							}
						}

						self.headerFilters[field] = {value:value, func:filterFunc, type:type};
					}else {
						delete self.headerFilters[field];
					}

					column.modules.filter.value = value;

					filterChangeCheck = JSON.stringify(self.headerFilters);

					if(self.prevHeaderFilterChangeCheck !== filterChangeCheck){
						self.prevHeaderFilterChangeCheck = filterChangeCheck;

						self.trackChanges();
						self.refreshFilter();
					}
				}

				return true;
			}

			column.modules.filter = {
				success:success,
				attrType:false,
				tagType:false,
				emptyFunc:false,
			};

			this.generateHeaderFilterElement(column);
		}

		generateHeaderFilterElement(column, initialValue, reinitialize){
			var self = this,
			success = column.modules.filter.success,
			field = column.getField(),
			filterElement, editor, editorElement, cellWrapper, typingTimer, searchTrigger, params, onRenderedCallback;

			column.modules.filter.value = initialValue;

			//handle aborted edit
			function cancel(){}

			function onRendered(callback){
				onRenderedCallback = callback;
			}

			if(column.modules.filter.headerElement && column.modules.filter.headerElement.parentNode){
				column.contentElement.removeChild(column.modules.filter.headerElement.parentNode);
			}

			if(field){

				//set empty value function
				column.modules.filter.emptyFunc = column.definition.headerFilterEmptyCheck || function(value){
					return !value && value !== 0;
				};

				filterElement = document.createElement("div");
				filterElement.classList.add("tabulator-header-filter");

				//set column editor
				switch(typeof column.definition.headerFilter){
					case "string":
						if(self.table.modules.edit.editors[column.definition.headerFilter]){
							editor = self.table.modules.edit.editors[column.definition.headerFilter];

							if((column.definition.headerFilter === "tick" || column.definition.headerFilter === "tickCross") && !column.definition.headerFilterEmptyCheck){
								column.modules.filter.emptyFunc = function(value){
									return value !== true && value !== false;
								};
							}
						}else {
							console.warn("Filter Error - Cannot build header filter, No such editor found: ", column.definition.editor);
						}
						break;

					case "function":
						editor = column.definition.headerFilter;
						break;

					case "boolean":
						if(column.modules.edit && column.modules.edit.editor){
							editor = column.modules.edit.editor;
						}else {
							if(column.definition.formatter && self.table.modules.edit.editors[column.definition.formatter]){
								editor = self.table.modules.edit.editors[column.definition.formatter];

								if((column.definition.formatter === "tick" || column.definition.formatter === "tickCross") && !column.definition.headerFilterEmptyCheck){
									column.modules.filter.emptyFunc = function(value){
										return value !== true && value !== false;
									};
								}
							}else {
								editor = self.table.modules.edit.editors["input"];
							}
						}
						break;
				}

				if(editor){

					cellWrapper = {
						getValue:function(){
							return typeof initialValue !== "undefined" ? initialValue : "";
						},
						getField:function(){
							return column.definition.field;
						},
						getElement:function(){
							return filterElement;
						},
						getColumn:function(){
							return column.getComponent();
						},
						getTable:() => {
							return this.table;
						},
						getType:() => {
							return "header";
						},
						getRow:function(){
							return {
								normalizeHeight:function(){

								}
							};
						}
					};

					params = column.definition.headerFilterParams || {};

					params = typeof params === "function" ? params.call(self.table, cellWrapper) : params;

					editorElement = editor.call(this.table.modules.edit, cellWrapper, onRendered, success, cancel, params);

					if(!editorElement){
						console.warn("Filter Error - Cannot add filter to " + field + " column, editor returned a value of false");
						return;
					}

					if(!(editorElement instanceof Node)){
						console.warn("Filter Error - Cannot add filter to " + field + " column, editor should return an instance of Node, the editor returned:", editorElement);
						return;
					}

					//set Placeholder Text
					self.langBind("headerFilters|columns|" + column.definition.field, function(value){
						editorElement.setAttribute("placeholder", typeof value !== "undefined" && value ? value : (column.definition.headerFilterPlaceholder || self.langText("headerFilters|default")));
					});

					//focus on element on click
					editorElement.addEventListener("click", function(e){
						e.stopPropagation();
						editorElement.focus();
					});

					editorElement.addEventListener("focus", (e) => {
						var left = this.table.columnManager.contentsElement.scrollLeft;

						var headerPos = this.table.rowManager.element.scrollLeft;

						if(left !== headerPos){
							this.table.rowManager.scrollHorizontal(left);
							this.table.columnManager.scrollHorizontal(left);
						}
					});

					//live update filters as user types
					typingTimer = false;

					searchTrigger = function(e){
						if(typingTimer){
							clearTimeout(typingTimer);
						}

						typingTimer = setTimeout(function(){
							success(editorElement.value);
						},self.table.options.headerFilterLiveFilterDelay);
					};

					column.modules.filter.headerElement = editorElement;
					column.modules.filter.attrType = editorElement.hasAttribute("type") ? editorElement.getAttribute("type").toLowerCase() : "" ;
					column.modules.filter.tagType = editorElement.tagName.toLowerCase();

					if(column.definition.headerFilterLiveFilter !== false){

						if (
							!(
								column.definition.headerFilter === 'autocomplete' ||
								column.definition.headerFilter === 'tickCross' ||
								((column.definition.editor === 'autocomplete' ||
									column.definition.editor === 'tickCross') &&
								column.definition.headerFilter === true)
							)
						) {
							editorElement.addEventListener("keyup", searchTrigger);
							editorElement.addEventListener("search", searchTrigger);


							//update number filtered columns on change
							if(column.modules.filter.attrType == "number"){
								editorElement.addEventListener("change", function(e){
									success(editorElement.value);
								});
							}

							//change text inputs to search inputs to allow for clearing of field
							if(column.modules.filter.attrType == "text" && this.table.browser !== "ie"){
								editorElement.setAttribute("type", "search");
							// editorElement.off("change blur"); //prevent blur from triggering filter and preventing selection click
							}

						}

						//prevent input and select elements from propagating click to column sorters etc
						if(column.modules.filter.tagType == "input" || column.modules.filter.tagType == "select" || column.modules.filter.tagType == "textarea"){
							editorElement.addEventListener("mousedown",function(e){
								e.stopPropagation();
							});
						}
					}

					filterElement.appendChild(editorElement);

					column.contentElement.appendChild(filterElement);

					if(!reinitialize){
						self.headerFilterColumns.push(column);
					}

					if(onRenderedCallback){
						onRenderedCallback();
					}
				}
			}else {
				console.warn("Filter Error - Cannot add header filter, column has no field set:", column.definition.title);
			}
		}

		//hide all header filter elements (used to ensure correct column widths in "fitData" layout mode)
		hideHeaderFilterElements(){
			this.headerFilterColumns.forEach(function(column){
				if(column.modules.filter && column.modules.filter.headerElement){
					column.modules.filter.headerElement.style.display = 'none';
				}
			});
		}

		//show all header filter elements (used to ensure correct column widths in "fitData" layout mode)
		showHeaderFilterElements(){
			this.headerFilterColumns.forEach(function(column){
				if(column.modules.filter && column.modules.filter.headerElement){
					column.modules.filter.headerElement.style.display = '';
				}
			});
		}

		//programmatically set focus of header filter
		setHeaderFilterFocus(column){
			if(column.modules.filter && column.modules.filter.headerElement){
				column.modules.filter.headerElement.focus();
			}else {
				console.warn("Column Filter Focus Error - No header filter set on column:", column.getField());
			}
		}

		//programmatically get value of header filter
		getHeaderFilterValue(column){
			if(column.modules.filter && column.modules.filter.headerElement){
				return column.modules.filter.value;
			} else {
				console.warn("Column Filter Error - No header filter set on column:", column.getField());
			}
		}

		//programmatically set value of header filter
		setHeaderFilterValue(column, value){
			if (column){
				if(column.modules.filter && column.modules.filter.headerElement){
					this.generateHeaderFilterElement(column, value, true);
					column.modules.filter.success(value);
				}else {
					console.warn("Column Filter Error - No header filter set on column:", column.getField());
				}
			}
		}

		reloadHeaderFilter(column){
			if (column){
				if(column.modules.filter && column.modules.filter.headerElement){
					this.generateHeaderFilterElement(column, column.modules.filter.value, true);
				}else {
					console.warn("Column Filter Error - No header filter set on column:", column.getField());
				}
			}
		}

		refreshFilter(){
			if(this.tableInitialized){
				if(this.table.options.filterMode === "remote"){
					this.reloadData(null, false, false);
				}else {
					this.refreshData(true);
				}
			}

			//TODO - Persist left position of row manager
			// left = this.scrollLeft;
			// this.scrollHorizontal(left);
		}

		//check if the filters has changed since last use
		trackChanges(){
			this.changed = true;
			this.dispatch("filter-changed");
		}

		//check if the filters has changed since last use
		hasChanged(){
			var changed = this.changed;
			this.changed = false;
			return changed;
		}

		//set standard filters
		setFilter(field, type, value, params){
			this.filterList = [];

			if(!Array.isArray(field)){
				field = [{field:field, type:type, value:value, params:params}];
			}

			this.addFilter(field);
		}

		//add filter to array
		addFilter(field, type, value, params){
			var changed = false;

			if(!Array.isArray(field)){
				field = [{field:field, type:type, value:value, params:params}];
			}

			field.forEach((filter) => {
				filter = this.findFilter(filter);

				if(filter){
					this.filterList.push(filter);
					changed = true;
				}
			});

			if(changed){
				this.trackChanges();
			}
		}

		findFilter(filter){
			var column;

			if(Array.isArray(filter)){
				return this.findSubFilters(filter);
			}

			var filterFunc = false;

			if(typeof filter.field == "function"){
				filterFunc = function(data){
					return filter.field(data, filter.type || {});// pass params to custom filter function
				};
			}else {

				if(Filter.filters[filter.type]){

					column = this.table.columnManager.getColumnByField(filter.field);

					if(column){
						filterFunc = function(data){
							return Filter.filters[filter.type](filter.value, column.getFieldValue(data), data, filter.params || {});
						};
					}else {
						filterFunc = function(data){
							return Filter.filters[filter.type](filter.value, data[filter.field], data, filter.params || {});
						};
					}


				}else {
					console.warn("Filter Error - No such filter type found, ignoring: ", filter.type);
				}
			}

			filter.func = filterFunc;

			return filter.func ? filter : false;
		}

		findSubFilters(filters){
			var output = [];

			filters.forEach((filter) => {
				filter = this.findFilter(filter);

				if(filter){
					output.push(filter);
				}
			});

			return output.length ? output : false;
		}

		//get all filters
		getFilters(all, ajax){
			var output = [];

			if(all){
				output = this.getHeaderFilters();
			}

			if(ajax){
				output.forEach(function(item){
					if(typeof item.type == "function"){
						item.type = "function";
					}
				});
			}

			output = output.concat(this.filtersToArray(this.filterList, ajax));

			return output;
		}

		//filter to Object
		filtersToArray(filterList, ajax){
			var output = [];

			filterList.forEach((filter) => {
				var item;

				if(Array.isArray(filter)){
					output.push(this.filtersToArray(filter, ajax));
				}else {
					item = {field:filter.field, type:filter.type, value:filter.value};

					if(ajax){
						if(typeof item.type == "function"){
							item.type = "function";
						}
					}

					output.push(item);
				}
			});

			return output;
		}

		//get all filters
		getHeaderFilters(){
			var output = [];

			for(var key in this.headerFilters){
				output.push({field:key, type:this.headerFilters[key].type, value:this.headerFilters[key].value});
			}

			return output;
		}

		//remove filter from array
		removeFilter(field, type, value){
			if(!Array.isArray(field)){
				field = [{field:field, type:type, value:value}];
			}

			field.forEach((filter) => {
				var index = -1;

				if(typeof filter.field == "object"){
					index = this.filterList.findIndex((element) => {
						return filter === element;
					});
				}else {
					index = this.filterList.findIndex((element) => {
						return filter.field === element.field && filter.type === element.type  && filter.value === element.value;
					});
				}

				if(index > -1){
					this.filterList.splice(index, 1);
				}else {
					console.warn("Filter Error - No matching filter type found, ignoring: ", filter.type);
				}
			});

			this.trackChanges();
		}

		//clear filters
		clearFilter(all){
			this.filterList = [];

			if(all){
				this.clearHeaderFilter();
			}

			this.trackChanges();
		}

		//clear header filters
		clearHeaderFilter(){
			this.headerFilters = {};
			this.prevHeaderFilterChangeCheck = "{}";

			this.headerFilterColumns.forEach((column) => {
				if(typeof column.modules.filter.value !== "undefined"){
					delete column.modules.filter.value;
				}
				column.modules.filter.prevSuccess = undefined;
				this.reloadHeaderFilter(column);
			});

			this.trackChanges();
		}

		//search data and return matching rows
		search (searchType, field, type, value){
			var activeRows = [],
			filterList = [];

			if(!Array.isArray(field)){
				field = [{field:field, type:type, value:value}];
			}

			field.forEach((filter) => {
				filter = this.findFilter(filter);

				if(filter){
					filterList.push(filter);
				}
			});

			this.table.rowManager.rows.forEach((row) => {
				var match = true;

				filterList.forEach((filter) => {
					if(!this.filterRecurse(filter, row.getData())){
						match = false;
					}
				});

				if(match){
					activeRows.push(searchType === "data" ? row.getData("data") : row.getComponent());
				}

			});

			return activeRows;
		}

		//filter row array
		filter(rowList, filters){
			var activeRows = [],
			activeRowComponents = [];

			if(this.subscribedExternal("dataFiltering")){
				this.dispatchExternal("dataFiltering", this.getFilters(true));
			}

			if(this.table.options.filterMode !== "remote" && (this.filterList.length || Object.keys(this.headerFilters).length)){

				rowList.forEach((row) => {
					if(this.filterRow(row)){
						activeRows.push(row);
					}
				});

			}else {
				activeRows = rowList.slice(0);
			}

			if(this.subscribedExternal("dataFiltered")){

				activeRows.forEach((row) => {
					activeRowComponents.push(row.getComponent());
				});

				this.dispatchExternal("dataFiltered", this.getFilters(true), activeRowComponents);
			}

			return activeRows;
		}

		//filter individual row
		filterRow(row, filters){
			var match = true,
			data = row.getData();

			this.filterList.forEach((filter) => {
				if(!this.filterRecurse(filter, data)){
					match = false;
				}
			});


			for(var field in this.headerFilters){
				if(!this.headerFilters[field].func(data)){
					match = false;
				}
			}

			return match;
		}

		filterRecurse(filter, data){
			var match = false;

			if(Array.isArray(filter)){
				filter.forEach((subFilter) => {
					if(this.filterRecurse(subFilter, data)){
						match = true;
					}
				});
			}else {
				match = filter.func(data);
			}

			return match;
		}
	}

	function plaintext(cell, formatterParams, onRendered){
		return this.emptyToSpace(this.sanitizeHTML(cell.getValue()));
	}

	function html(cell, formatterParams, onRendered){
		return cell.getValue();
	}

	function textarea(cell, formatterParams, onRendered){
		cell.getElement().style.whiteSpace = "pre-wrap";
		return this.emptyToSpace(this.sanitizeHTML(cell.getValue()));
	}

	function money(cell, formatterParams, onRendered){
		var floatVal = parseFloat(cell.getValue()),
		sign = "",
		number, integer, decimal, rgx, value;

		var decimalSym = formatterParams.decimal || ".";
		var thousandSym = formatterParams.thousand || ",";
		var negativeSign = formatterParams.negativeSign || "-";
		var symbol = formatterParams.symbol || "";
		var after = !!formatterParams.symbolAfter;
		var precision = typeof formatterParams.precision !== "undefined" ? formatterParams.precision : 2;

		if(isNaN(floatVal)){
			return this.emptyToSpace(this.sanitizeHTML(cell.getValue()));
		}

		if(floatVal < 0){
			floatVal = Math.abs(floatVal);
			sign = negativeSign;
		}

		number = precision !== false ? floatVal.toFixed(precision) : floatVal;
		number = String(number).split(".");

		integer = number[0];
		decimal = number.length > 1 ? decimalSym + number[1] : "";

		if (formatterParams.thousand !== false) {
			rgx = /(\d+)(\d{3})/;

			while (rgx.test(integer)){
				integer = integer.replace(rgx, "$1" + thousandSym + "$2");
			}
		}

		value = integer + decimal;
		
		if(sign === true){
			value = "(" + value  + ")";
			return after ? value + symbol : symbol + value;
		}else {
			return after ? sign + value + symbol : sign + symbol + value;
		}
	}

	function link(cell, formatterParams, onRendered){
		var value = cell.getValue(),
		urlPrefix = formatterParams.urlPrefix || "",
		download = formatterParams.download,
		label = value,
		el = document.createElement("a"),
		data;

		function labelTraverse(path, data){
			var item = path.shift(),
			value = data[item];
			
			if(path.length && typeof value === "object"){
				return labelTraverse(path, value);
			}

			return value;
		}

		if(formatterParams.labelField){
			data = cell.getData();
			label = labelTraverse(formatterParams.labelField.split(this.table.options.nestedFieldSeparator), data);
		}

		if(formatterParams.label){
			switch(typeof formatterParams.label){
				case "string":
					label = formatterParams.label;
					break;

				case "function":
					label = formatterParams.label(cell);
					break;
			}
		}

		if(label){
			if(formatterParams.urlField){
				data = cell.getData();

				value = Helpers.retrieveNestedData(this.table.options.nestedFieldSeparator, formatterParams.urlField, data);
			}

			if(formatterParams.url){
				switch(typeof formatterParams.url){
					case "string":
						value = formatterParams.url;
						break;

					case "function":
						value = formatterParams.url(cell);
						break;
				}
			}

			el.setAttribute("href", urlPrefix + value);

			if(formatterParams.target){
				el.setAttribute("target", formatterParams.target);
			}

			if(formatterParams.download){

				if(typeof download == "function"){
					download = download(cell);
				}else {
					download = download === true ? "" : download;
				}

				el.setAttribute("download", download);
			}

			el.innerHTML = this.emptyToSpace(this.sanitizeHTML(label));

			return el;
		}else {
			return "&nbsp;";
		}
	}

	function image(cell, formatterParams, onRendered){
		var el = document.createElement("img"),
		src = cell.getValue();

		if(formatterParams.urlPrefix){
			src = formatterParams.urlPrefix + cell.getValue();
		}

		if(formatterParams.urlSuffix){
			src = src + formatterParams.urlSuffix;
		}

		el.setAttribute("src", src);

		switch(typeof formatterParams.height){
			case "number":
				el.style.height = formatterParams.height + "px";
				break;

			case "string":
				el.style.height = formatterParams.height;
				break;
		}

		switch(typeof formatterParams.width){
			case "number":
				el.style.width = formatterParams.width + "px";
				break;

			case "string":
				el.style.width = formatterParams.width;
				break;
		}

		el.addEventListener("load", function(){
			cell.getRow().normalizeHeight();
		});

		return el;
	}

	function tickCross(cell, formatterParams, onRendered){
		var value = cell.getValue(),
		element = cell.getElement(),
		empty = formatterParams.allowEmpty,
		truthy = formatterParams.allowTruthy,
		trueValueSet = Object.keys(formatterParams).includes("trueValue"),
		tick = typeof formatterParams.tickElement !== "undefined" ? formatterParams.tickElement : '<svg enable-background="new 0 0 24 24" height="14" width="14" viewBox="0 0 24 24" xml:space="preserve" ><path fill="#2DC214" clip-rule="evenodd" d="M21.652,3.211c-0.293-0.295-0.77-0.295-1.061,0L9.41,14.34  c-0.293,0.297-0.771,0.297-1.062,0L3.449,9.351C3.304,9.203,3.114,9.13,2.923,9.129C2.73,9.128,2.534,9.201,2.387,9.351  l-2.165,1.946C0.078,11.445,0,11.63,0,11.823c0,0.194,0.078,0.397,0.223,0.544l4.94,5.184c0.292,0.296,0.771,0.776,1.062,1.07  l2.124,2.141c0.292,0.293,0.769,0.293,1.062,0l14.366-14.34c0.293-0.294,0.293-0.777,0-1.071L21.652,3.211z" fill-rule="evenodd"/></svg>',
		cross = typeof formatterParams.crossElement !== "undefined" ? formatterParams.crossElement : '<svg enable-background="new 0 0 24 24" height="14" width="14"  viewBox="0 0 24 24" xml:space="preserve" ><path fill="#CE1515" d="M22.245,4.015c0.313,0.313,0.313,0.826,0,1.139l-6.276,6.27c-0.313,0.312-0.313,0.826,0,1.14l6.273,6.272  c0.313,0.313,0.313,0.826,0,1.14l-2.285,2.277c-0.314,0.312-0.828,0.312-1.142,0l-6.271-6.271c-0.313-0.313-0.828-0.313-1.141,0  l-6.276,6.267c-0.313,0.313-0.828,0.313-1.141,0l-2.282-2.28c-0.313-0.313-0.313-0.826,0-1.14l6.278-6.269  c0.313-0.312,0.313-0.826,0-1.14L1.709,5.147c-0.314-0.313-0.314-0.827,0-1.14l2.284-2.278C4.308,1.417,4.821,1.417,5.135,1.73  L11.405,8c0.314,0.314,0.828,0.314,1.141,0.001l6.276-6.267c0.312-0.312,0.826-0.312,1.141,0L22.245,4.015z"/></svg>';

		if((trueValueSet && value === formatterParams.trueValue) || (!trueValueSet && ((truthy && value) || (value === true || value === "true" || value === "True" || value === 1 || value === "1")))){
			element.setAttribute("aria-checked", true);
			return tick || "";
		}else {
			if(empty && (value === "null" || value === "" || value === null || typeof value === "undefined")){
				element.setAttribute("aria-checked", "mixed");
				return "";
			}else {
				element.setAttribute("aria-checked", false);
				return cross || "";
			}
		}
	}

	function datetime$1(cell, formatterParams, onRendered){
		var DT = this.table.dependencyRegistry.lookup(["luxon", "DateTime"], "DateTime");
		var inputFormat = formatterParams.inputFormat || "yyyy-MM-dd HH:mm:ss";
		var	outputFormat = formatterParams.outputFormat || "dd/MM/yyyy HH:mm:ss";
		var	invalid = typeof formatterParams.invalidPlaceholder !== "undefined" ? formatterParams.invalidPlaceholder : "";
		var value = cell.getValue();

		if(typeof DT != "undefined"){
			var newDatetime;

			if(DT.isDateTime(value)){
				newDatetime = value;
			}else if(inputFormat === "iso"){
				newDatetime = DT.fromISO(String(value));
			}else {
				newDatetime = DT.fromFormat(String(value), inputFormat);
			}

			if(newDatetime.isValid){
				if(formatterParams.timezone){
					newDatetime = newDatetime.setZone(formatterParams.timezone);
				}

				return newDatetime.toFormat(outputFormat);
			}else {
				if(invalid === true || !value){
					return value;
				}else if(typeof invalid === "function"){
					return invalid(value);
				}else {
					return invalid;
				}
			}
		}else {
			console.error("Format Error - 'datetime' formatter is dependant on luxon.js");
		}
	}

	function datetimediff (cell, formatterParams, onRendered) {
		var DT = this.table.dependencyRegistry.lookup(["luxon", "DateTime"], "DateTime");
		var inputFormat = formatterParams.inputFormat || "yyyy-MM-dd HH:mm:ss";
		var invalid = typeof formatterParams.invalidPlaceholder !== "undefined" ? formatterParams.invalidPlaceholder : "";
		var suffix = typeof formatterParams.suffix !== "undefined" ? formatterParams.suffix : false;
		var unit = typeof formatterParams.unit !== "undefined" ? formatterParams.unit : "days";
		var humanize = typeof formatterParams.humanize !== "undefined" ? formatterParams.humanize : false;
		var date = typeof formatterParams.date !== "undefined" ? formatterParams.date : DT.now();
		var value = cell.getValue();

		if(typeof DT != "undefined"){
			var newDatetime;

			if(DT.isDateTime(value)){
				newDatetime = value;
			}else if(inputFormat === "iso"){
				newDatetime = DT.fromISO(String(value));
			}else {
				newDatetime = DT.fromFormat(String(value), inputFormat);
			}

			if (newDatetime.isValid){
				if(humanize){
					return newDatetime.diff(date, unit).toHuman()  + (suffix ? " " + suffix : "");
				}else {
					return parseInt(newDatetime.diff(date, unit)[unit]) + (suffix ? " " + suffix : "");
				}
			} else {

				if (invalid === true) {
					return value;
				} else if (typeof invalid === "function") {
					return invalid(value);
				} else {
					return invalid;
				}
			}
		}else {
			console.error("Format Error - 'datetimediff' formatter is dependant on luxon.js");
		}
	}

	function lookup (cell, formatterParams, onRendered) {
		var value = cell.getValue();

		if (typeof formatterParams[value] === "undefined") {
			console.warn('Missing display value for ' + value);
			return value;
		}

		return formatterParams[value];
	}

	function star(cell, formatterParams, onRendered){
		var value = cell.getValue(),
		element = cell.getElement(),
		maxStars = formatterParams && formatterParams.stars ? formatterParams.stars : 5,
		stars = document.createElement("span"),
		star = document.createElementNS('http://www.w3.org/2000/svg', "svg"),
		starActive = '<polygon fill="#FFEA00" stroke="#C1AB60" stroke-width="37.6152" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="259.216,29.942 330.27,173.919 489.16,197.007 374.185,309.08 401.33,467.31 259.216,392.612 117.104,467.31 144.25,309.08 29.274,197.007 188.165,173.919 "/>',
		starInactive = '<polygon fill="#D2D2D2" stroke="#686868" stroke-width="37.6152" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="259.216,29.942 330.27,173.919 489.16,197.007 374.185,309.08 401.33,467.31 259.216,392.612 117.104,467.31 144.25,309.08 29.274,197.007 188.165,173.919 "/>';

		//style stars holder
		stars.style.verticalAlign = "middle";

		//style star
		star.setAttribute("width", "14");
		star.setAttribute("height", "14");
		star.setAttribute("viewBox", "0 0 512 512");
		star.setAttribute("xml:space", "preserve");
		star.style.padding = "0 1px";

		value = value && !isNaN(value) ? parseInt(value) : 0;

		value = Math.max(0, Math.min(value, maxStars));

		for(var i=1;i<= maxStars;i++){
			var nextStar = star.cloneNode(true);
			nextStar.innerHTML = i <= value ? starActive : starInactive;

			stars.appendChild(nextStar);
		}

		element.style.whiteSpace = "nowrap";
		element.style.overflow = "hidden";
		element.style.textOverflow = "ellipsis";

		element.setAttribute("aria-label", value);

		return stars;
	}

	function traffic(cell, formatterParams, onRendered){
		var value = this.sanitizeHTML(cell.getValue()) || 0,
		el = document.createElement("span"),
		max = formatterParams && formatterParams.max ? formatterParams.max : 100,
		min = formatterParams && formatterParams.min ? formatterParams.min : 0,
		colors = formatterParams && typeof formatterParams.color !== "undefined" ? formatterParams.color : ["red", "orange", "green"],
		color = "#666666",
		percent, percentValue;

		if(isNaN(value) || typeof cell.getValue() === "undefined"){
			return;
		}

		el.classList.add("tabulator-traffic-light");

		//make sure value is in range
		percentValue = parseFloat(value) <= max ? parseFloat(value) : max;
		percentValue = parseFloat(percentValue) >= min ? parseFloat(percentValue) : min;

		//workout percentage
		percent = (max - min) / 100;
		percentValue = Math.round((percentValue - min) / percent);

		//set color
		switch(typeof colors){
			case "string":
				color = colors;
				break;
			case "function":
				color = colors(value);
				break;
			case "object":
				if(Array.isArray(colors)){
					var unit = 100 / colors.length;
					var index = Math.floor(percentValue / unit);

					index = Math.min(index, colors.length - 1);
					index = Math.max(index, 0);
					color = colors[index];
					break;
				}
		}

		el.style.backgroundColor = color;

		return el;
	}

	function progress(cell, formatterParams = {}, onRendered){ //progress bar
		var value = this.sanitizeHTML(cell.getValue()) || 0,
		element = cell.getElement(),
		max = formatterParams.max ? formatterParams.max : 100,
		min = formatterParams.min ? formatterParams.min : 0,
		legendAlign = formatterParams.legendAlign ? formatterParams.legendAlign : "center",
		percent, percentValue, color, legend, legendColor;

		//make sure value is in range
		percentValue = parseFloat(value) <= max ? parseFloat(value) : max;
		percentValue = parseFloat(percentValue) >= min ? parseFloat(percentValue) : min;

		//workout percentage
		percent = (max - min) / 100;
		percentValue = Math.round((percentValue - min) / percent);

		//set bar color
		switch(typeof formatterParams.color){
			case "string":
				color = formatterParams.color;
				break;
			case "function":
				color = formatterParams.color(value);
				break;
			case "object":
				if(Array.isArray(formatterParams.color)){
					let unit = 100 / formatterParams.color.length;
					let index = Math.floor(percentValue / unit);

					index = Math.min(index, formatterParams.color.length - 1);
					index = Math.max(index, 0);
					color = formatterParams.color[index];
					break;
				}
			default:
				color = "#2DC214";
		}

		//generate legend
		switch(typeof formatterParams.legend){
			case "string":
				legend = formatterParams.legend;
				break;
			case "function":
				legend = formatterParams.legend(value);
				break;
			case "boolean":
				legend = value;
				break;
			default:
				legend = false;
		}

		//set legend color
		switch(typeof formatterParams.legendColor){
			case "string":
				legendColor = formatterParams.legendColor;
				break;
			case "function":
				legendColor = formatterParams.legendColor(value);
				break;
			case "object":
				if(Array.isArray(formatterParams.legendColor)){
					let unit = 100 / formatterParams.legendColor.length;
					let index = Math.floor(percentValue / unit);

					index = Math.min(index, formatterParams.legendColor.length - 1);
					index = Math.max(index, 0);
					legendColor = formatterParams.legendColor[index];
				}
				break;
			default:
				legendColor = "#000";
		}

		element.style.minWidth = "30px";
		element.style.position = "relative";

		element.setAttribute("aria-label", percentValue);

		var barEl = document.createElement("div");
		barEl.style.display = "inline-block";
		barEl.style.width = percentValue + "%";
		barEl.style.backgroundColor = color;
		barEl.style.height = "100%";

		barEl.setAttribute('data-max', max);
		barEl.setAttribute('data-min', min);

		var barContainer = document.createElement("div");
		barContainer.style.position = "relative";
		barContainer.style.width = "100%";
		barContainer.style.height = "100%";

		if(legend){
			var legendEl = document.createElement("div");
			legendEl.style.position = "absolute";
			legendEl.style.top = 0;
			legendEl.style.left = 0;
			legendEl.style.textAlign = legendAlign;
			legendEl.style.width = "100%";
			legendEl.style.color = legendColor;
			legendEl.innerHTML = legend;
		}

		onRendered(function(){

			//handle custom element needed if formatter is to be included in printed/downloaded output
			if(!(cell instanceof CellComponent)){
				var holderEl = document.createElement("div");
				holderEl.style.position = "absolute";
				holderEl.style.top = "4px";
				holderEl.style.bottom = "4px";
				holderEl.style.left = "4px";
				holderEl.style.right = "4px";

				element.appendChild(holderEl);

				element = holderEl;
			}

			element.appendChild(barContainer);
			barContainer.appendChild(barEl);

			if(legend){
				barContainer.appendChild(legendEl);
			}
		});

		return "";
	}

	function color(cell, formatterParams, onRendered){
		cell.getElement().style.backgroundColor = this.sanitizeHTML(cell.getValue());
		return "";
	}

	function buttonTick(cell, formatterParams, onRendered){
		return '<svg enable-background="new 0 0 24 24" height="14" width="14" viewBox="0 0 24 24" xml:space="preserve" ><path fill="#2DC214" clip-rule="evenodd" d="M21.652,3.211c-0.293-0.295-0.77-0.295-1.061,0L9.41,14.34  c-0.293,0.297-0.771,0.297-1.062,0L3.449,9.351C3.304,9.203,3.114,9.13,2.923,9.129C2.73,9.128,2.534,9.201,2.387,9.351  l-2.165,1.946C0.078,11.445,0,11.63,0,11.823c0,0.194,0.078,0.397,0.223,0.544l4.94,5.184c0.292,0.296,0.771,0.776,1.062,1.07  l2.124,2.141c0.292,0.293,0.769,0.293,1.062,0l14.366-14.34c0.293-0.294,0.293-0.777,0-1.071L21.652,3.211z" fill-rule="evenodd"/></svg>';
	}

	function buttonCross(cell, formatterParams, onRendered){
		return '<svg enable-background="new 0 0 24 24" height="14" width="14" viewBox="0 0 24 24" xml:space="preserve" ><path fill="#CE1515" d="M22.245,4.015c0.313,0.313,0.313,0.826,0,1.139l-6.276,6.27c-0.313,0.312-0.313,0.826,0,1.14l6.273,6.272  c0.313,0.313,0.313,0.826,0,1.14l-2.285,2.277c-0.314,0.312-0.828,0.312-1.142,0l-6.271-6.271c-0.313-0.313-0.828-0.313-1.141,0  l-6.276,6.267c-0.313,0.313-0.828,0.313-1.141,0l-2.282-2.28c-0.313-0.313-0.313-0.826,0-1.14l6.278-6.269  c0.313-0.312,0.313-0.826,0-1.14L1.709,5.147c-0.314-0.313-0.314-0.827,0-1.14l2.284-2.278C4.308,1.417,4.821,1.417,5.135,1.73  L11.405,8c0.314,0.314,0.828,0.314,1.141,0.001l6.276-6.267c0.312-0.312,0.826-0.312,1.141,0L22.245,4.015z"/></svg>';
	}

	function toggle(cell, formatterParams, onRendered){
		var value = cell.getValue(),
		size = formatterParams.size ||15,
		sizePx = size + "px",
		containEl, switchEl,
		onValue = formatterParams.hasOwnProperty("onValue") ? formatterParams.onValue : true,
		offValue = formatterParams.hasOwnProperty("offValue") ? formatterParams.offValue : false,


		state = formatterParams.onTruthy ? value : value === onValue;

		
		containEl = document.createElement("div");
		containEl.classList.add("tabulator-toggle");

		if(state){
			containEl.classList.add("tabulator-toggle-on");
			containEl.style.flexDirection = "row-reverse";

			if(formatterParams.onColor){
				containEl.style.background = formatterParams.onColor;
			}
		}else {
			if(formatterParams.offColor){
				containEl.style.background = formatterParams.offColor;
			}
		}

		containEl.style.width = (2.5 * size) + "px";
		containEl.style.borderRadius = sizePx;

		if(formatterParams.clickable){
			containEl.addEventListener("click", (e) => {
				cell.setValue(state ? offValue : onValue);
			});
		}

		switchEl = document.createElement("div");
		switchEl.classList.add("tabulator-toggle-switch");

		switchEl.style.height = sizePx;
		switchEl.style.width = sizePx;
		switchEl.style.borderRadius = sizePx;
		
		containEl.appendChild(switchEl);
		
		return containEl;
	}

	function rownum(cell, formatterParams, onRendered){
		var content = document.createElement("span");
		var row = cell.getRow();
		var table = cell.getTable();

		row.watchPosition((position) => {
			if (formatterParams.relativeToPage) {
				position += table.modules.page.getPageSize() * (table.modules.page.getPage() - 1);
			}
			content.innerText = position;
		});
		
		return content;
	}

	function handle(cell, formatterParams, onRendered){
		cell.getElement().classList.add("tabulator-row-handle");
		return "<div class='tabulator-row-handle-box'><div class='tabulator-row-handle-bar'></div><div class='tabulator-row-handle-bar'></div><div class='tabulator-row-handle-bar'></div></div>";
	}

	function adaptable(cell, params, onRendered){
		var lookup, formatterFunc, formatterParams;
	    
		function defaultLookup(cell){
			var value = cell.getValue(),
			formatter = "plaintext";
	        
			switch(typeof value){           
				case "boolean":
					formatter = "tickCross";
					break;
	            
				case "string":
					if(value.includes("\n")){
						formatter = "textarea";
					}
					break;
			}
	        
			return formatter;
		}
	    
		lookup = params.formatterLookup ? params.formatterLookup(cell) : defaultLookup(cell);

		if(params.paramsLookup){
			formatterParams = typeof params.paramsLookup === "function" ? params.paramsLookup(lookup, cell) : params.paramsLookup[lookup];
		}

		formatterFunc = this.table.modules.format.lookupFormatter(lookup);
	    
		return  formatterFunc.call(this, cell, formatterParams || {}, onRendered);
	}

	function array$2(cell, formatterParams, onRendered){
		var delimiter = formatterParams.delimiter || ",",
		value = cell.getValue(),
		table = this.table,
		valueMap;
		
		if(formatterParams.valueMap){
			if(typeof formatterParams.valueMap === "string"){
				valueMap = function(value){
					return value.map((item) => {
						return Helpers.retrieveNestedData(table.options.nestedFieldSeparator, formatterParams.valueMap, item);
					});
				};
			}else {
				valueMap = formatterParams.valueMap;
			}
		}

		if(Array.isArray(value)){
			if(valueMap){
				value = valueMap(value);
			}

			return value.join(delimiter);
		}else {
			return value;
		}
	}

	function json$1(cell, formatterParams, onRendered){
		var indent = formatterParams.indent || "\t",
		multiline = typeof formatterParams.multiline === "undefined" ? true : formatterParams.multiline,
		replacer = formatterParams.replacer || null,
		value = cell.getValue();
		
		if(multiline){
			cell.getElement().style.whiteSpace = "pre-wrap";
		}

		return JSON.stringify(value, replacer, indent);
	}

	var defaultFormatters = {
		plaintext:plaintext,
		html:html,
		textarea:textarea,
		money:money,
		link:link,
		image:image,
		tickCross:tickCross,
		datetime:datetime$1,
		datetimediff:datetimediff,
		lookup:lookup,
		star:star,
		traffic:traffic,
		progress:progress,
		color:color,
		buttonTick:buttonTick,
		buttonCross:buttonCross,
		toggle:toggle,
		rownum:rownum,
		handle:handle,
		adaptable:adaptable,
		array:array$2,
		json:json$1,
	};

	class Format extends Module{
		
		static moduleName = "format";
		
		//load defaults
		static formatters = defaultFormatters;
		
		constructor(table){
			super(table);
			
			this.registerColumnOption("formatter");
			this.registerColumnOption("formatterParams");
			
			this.registerColumnOption("formatterPrint");
			this.registerColumnOption("formatterPrintParams");
			this.registerColumnOption("formatterClipboard");
			this.registerColumnOption("formatterClipboardParams");
			this.registerColumnOption("formatterHtmlOutput");
			this.registerColumnOption("formatterHtmlOutputParams");
			this.registerColumnOption("titleFormatter");
			this.registerColumnOption("titleFormatterParams");
		}
		
		initialize(){
			this.subscribe("cell-format", this.formatValue.bind(this));
			this.subscribe("cell-rendered", this.cellRendered.bind(this));
			this.subscribe("column-layout", this.initializeColumn.bind(this));
			this.subscribe("column-format", this.formatHeader.bind(this));
		}
		
		//initialize column formatter
		initializeColumn(column){
			column.modules.format = this.lookupTypeFormatter(column, "");
			
			if(typeof column.definition.formatterPrint !== "undefined"){
				column.modules.format.print = this.lookupTypeFormatter(column, "Print");
			}
			
			if(typeof column.definition.formatterClipboard !== "undefined"){
				column.modules.format.clipboard = this.lookupTypeFormatter(column, "Clipboard");
			}
			
			if(typeof column.definition.formatterHtmlOutput !== "undefined"){
				column.modules.format.htmlOutput = this.lookupTypeFormatter(column, "HtmlOutput");
			}
		}
		
		lookupTypeFormatter(column, type){
			var config = {params:column.definition["formatter" + type + "Params"] || {}},
			formatter = column.definition["formatter" + type];
			
			config.formatter = this.lookupFormatter(formatter);
			
			return config;
		}
		
		
		lookupFormatter(formatter){
			var formatterFunc;

			//set column formatter
			switch(typeof formatter){
				case "string":
					if(Format.formatters[formatter]){
						formatterFunc = Format.formatters[formatter];
					}else {
						console.warn("Formatter Error - No such formatter found: ", formatter);
						formatterFunc = Format.formatters.plaintext;
					}
					break;
				
				case "function":
					formatterFunc = formatter;
					break;
				
				default:
					formatterFunc = Format.formatters.plaintext;
					break;
			}
			
			return formatterFunc;
		}
		
		cellRendered(cell){
			if(cell.modules.format && cell.modules.format.renderedCallback && !cell.modules.format.rendered){
				cell.modules.format.renderedCallback();
				cell.modules.format.rendered = true;
			}
		}
		
		//return a formatted value for a column header
		formatHeader(column, title, el){
			var formatter, params, onRendered, mockCell;
			
			if(column.definition.titleFormatter){
				formatter = this.lookupFormatter(column.definition.titleFormatter);
				
				onRendered = (callback) => {
					column.titleFormatterRendered = callback;
				};
				
				mockCell = {
					getValue:function(){
						return title;
					},
					getElement:function(){
						return el;
					},
					getType:function(){
						return "header";
					},
					getColumn:function(){
						return column.getComponent();
					},
					getTable:() => {
						return this.table;
					}
				};
				
				params = column.definition.titleFormatterParams || {};
				
				params = typeof params === "function" ? params() : params;
				
				return formatter.call(this, mockCell, params, onRendered);
			}else {
				return title;
			}
		}
		
		
		//return a formatted value for a cell
		formatValue(cell){
			var component = cell.getComponent(),
			params = typeof cell.column.modules.format.params === "function" ? cell.column.modules.format.params(component) : cell.column.modules.format.params;
			
			function onRendered(callback){
				if(!cell.modules.format){
					cell.modules.format = {};
				}
				
				cell.modules.format.renderedCallback = callback;
				cell.modules.format.rendered = false;
			}
			
			return cell.column.modules.format.formatter.call(this, component, params, onRendered);
		}
		
		formatExportValue(cell, type){
			var formatter = cell.column.modules.format[type],
			params;
			
			if(formatter){
				params = typeof formatter.params === "function" ? formatter.params(cell.getComponent()) : formatter.params;
				
				function onRendered(callback){
					if(!cell.modules.format){
						cell.modules.format = {};
					}
					
					cell.modules.format.renderedCallback = callback;
					cell.modules.format.rendered = false;
				}
				
				return formatter.formatter.call(this, cell.getComponent(), params, onRendered);
				
			}else {
				return this.formatValue(cell);
			}
		}
		
		sanitizeHTML(value){
			if(value){
				var entityMap = {
					'&': '&amp;',
					'<': '&lt;',
					'>': '&gt;',
					'"': '&quot;',
					"'": '&#39;',
					'/': '&#x2F;',
					'`': '&#x60;',
					'=': '&#x3D;'
				};
				
				return String(value).replace(/[&<>"'`=/]/g, function (s) {
					return entityMap[s];
				});
			}else {
				return value;
			}
		}
		
		emptyToSpace(value){
			return value === null || typeof value === "undefined" || value === "" ? "&nbsp;" : value;
		}
		
	}

	class FrozenColumns extends Module{

		static moduleName = "frozenColumns";
		
		constructor(table){
			super(table);
			
			this.leftColumns = [];
			this.rightColumns = [];
			this.initializationMode = "left";
			this.active = false;
			this.blocked = true;
			
			this.registerColumnOption("frozen");
		}
		
		//reset initial state
		reset(){
			this.initializationMode = "left";
			this.leftColumns = [];
			this.rightColumns = [];
			this.active = false;
		}
		
		initialize(){
			this.subscribe("cell-layout", this.layoutCell.bind(this));
			this.subscribe("column-init", this.initializeColumn.bind(this));
			this.subscribe("column-width", this.layout.bind(this));
			this.subscribe("row-layout-after", this.layoutRow.bind(this));
			this.subscribe("table-layout", this.layout.bind(this));
			this.subscribe("columns-loading", this.reset.bind(this));
			
			this.subscribe("column-add", this.reinitializeColumns.bind(this));
			this.subscribe("column-deleted", this.reinitializeColumns.bind(this));
			this.subscribe("column-hide", this.reinitializeColumns.bind(this));
			this.subscribe("column-show", this.reinitializeColumns.bind(this));
			this.subscribe("columns-loaded", this.reinitializeColumns.bind(this));
			
			this.subscribe("table-redraw", this.layout.bind(this));
			this.subscribe("layout-refreshing", this.blockLayout.bind(this));
			this.subscribe("layout-refreshed", this.unblockLayout.bind(this));
			this.subscribe("scrollbar-vertical", this.adjustForScrollbar.bind(this));
		}
		
		blockLayout(){
			this.blocked = true;
		}
		
		unblockLayout(){
			this.blocked = false;
		}
		
		layoutCell(cell){
			this.layoutElement(cell.element, cell.column);
		}
		
		reinitializeColumns(){
			this.reset();
			
			this.table.columnManager.columnsByIndex.forEach((column) => {
				this.initializeColumn(column);
			});

			this.layout();
		}
		
		//initialize specific column
		initializeColumn(column){
			var config = {margin:0, edge:false};
			
			if(!column.isGroup){			
				if(this.frozenCheck(column)){
					config.position = this.initializationMode;
					
					if(this.initializationMode == "left"){
						this.leftColumns.push(column);
					}else {
						this.rightColumns.unshift(column);
					}
					
					this.active = true;
					
					column.modules.frozen = config;
				}else {
					this.initializationMode = "right";
				}
			}
		}
		
		frozenCheck(column){
			if(column.parent.isGroup && column.definition.frozen){
				console.warn("Frozen Column Error - Parent column group must be frozen, not individual columns or sub column groups");
			}
			
			if(column.parent.isGroup){
				return this.frozenCheck(column.parent);
			}else {
				return column.definition.frozen;
			}
		}
		
		//layout calculation rows
		layoutCalcRows(){
			if(this.table.modExists("columnCalcs")){
				if(this.table.modules.columnCalcs.topInitialized && this.table.modules.columnCalcs.topRow){
					this.layoutRow(this.table.modules.columnCalcs.topRow);
				}
				
				if(this.table.modules.columnCalcs.botInitialized && this.table.modules.columnCalcs.botRow){
					this.layoutRow(this.table.modules.columnCalcs.botRow);
				}
				
				if(this.table.modExists("groupRows")){
					this.layoutGroupCalcs(this.table.modules.groupRows.getGroups());
				}
			}
		}
		
		layoutGroupCalcs(groups){
			groups.forEach((group) => {
				if(group.calcs.top){
					this.layoutRow(group.calcs.top);
				}
				
				if(group.calcs.bottom){
					this.layoutRow(group.calcs.bottom);
				}
				
				if(group.groupList && group.groupList.length){
					this.layoutGroupCalcs(group.groupList);
				}
			});
		}
		
		//calculate column positions and layout headers
		layoutColumnPosition(allCells){
			var leftParents = [];
			
			var leftMargin = 0;
			var rightMargin = 0;
			
			this.leftColumns.forEach((column, i) => {	
				column.modules.frozen.marginValue = leftMargin;
				column.modules.frozen.margin = column.modules.frozen.marginValue + "px";
				
				if(column.visible){
					leftMargin += column.getWidth();
				}
				
				if(i == this.leftColumns.length - 1){
					column.modules.frozen.edge = true;
				}else {
					column.modules.frozen.edge = false;
				}
				
				if(column.parent.isGroup){
					var parentEl = this.getColGroupParentElement(column);
					if(!leftParents.includes(parentEl)){
						this.layoutElement(parentEl, column);
						leftParents.push(parentEl);
					}
					
					parentEl.classList.toggle("tabulator-frozen-left",  column.modules.frozen.edge && column.modules.frozen.position === "left");
					parentEl.classList.toggle("tabulator-frozen-right", column.modules.frozen.edge && column.modules.frozen.position === "right");
				}else {
					this.layoutElement(column.getElement(), column);
				}
				
				if(allCells){
					column.cells.forEach((cell) => {
						this.layoutElement(cell.getElement(true), column);
					});
				}
			});
			
			this.rightColumns.forEach((column, i) => {
				
				column.modules.frozen.marginValue = rightMargin;
				column.modules.frozen.margin = column.modules.frozen.marginValue + "px";
				
				if(column.visible){
					rightMargin += column.getWidth();
				}
				
				if(i == this.rightColumns.length - 1){
					column.modules.frozen.edge = true;
				}else {
					column.modules.frozen.edge = false;
				}
				
				if(column.parent.isGroup){
					this.layoutElement(this.getColGroupParentElement(column), column);
				}else {
					this.layoutElement(column.getElement(), column);
				}
				
				if(allCells){
					column.cells.forEach((cell) => {
						this.layoutElement(cell.getElement(true), column);
					});
				}
			});
		}
		
		getColGroupParentElement(column){
			return column.parent.isGroup ? this.getColGroupParentElement(column.parent) : column.getElement();
		}
		
		//layout columns appropriately
		layout(){	
			if(this.active && !this.blocked){
				//calculate left columns
				this.layoutColumnPosition();
				
				this.reinitializeRows();
				
				this.layoutCalcRows();
			}
		}
		
		reinitializeRows(){
			var visibleRows = this.table.rowManager.getVisibleRows(true);
			var otherRows = this.table.rowManager.getRows().filter(row => !visibleRows.includes(row));
			
			otherRows.forEach((row) =>{
				row.deinitialize();
			});
			
			visibleRows.forEach((row) =>{
				if(row.type === "row"){
					this.layoutRow(row);
				}
			});
		}
		
		layoutRow(row){
			if(this.table.options.layout === "fitDataFill" && this.rightColumns.length){
				this.table.rowManager.getTableElement().style.minWidth = "calc(100% - " + this.rightMargin + ")";
			}
			
			this.leftColumns.forEach((column) => {
				var cell = row.getCell(column);
				
				if(cell){
					this.layoutElement(cell.getElement(true), column);
				}
			});
			
			this.rightColumns.forEach((column) => {
				var cell = row.getCell(column);
				
				if(cell){
					this.layoutElement(cell.getElement(true), column);
				}
			});
		}
		
		layoutElement(element, column){
			var position;
			
			if(column.modules.frozen && element){
				element.style.position = "sticky";

				if(this.table.rtl){
					position = column.modules.frozen.position === "left" ? "right" : "left";
				}else {
					position = column.modules.frozen.position;
				}
			
				element.style[position] = column.modules.frozen.margin;

				element.classList.add("tabulator-frozen");
				
				element.classList.toggle("tabulator-frozen-left",  column.modules.frozen.edge && column.modules.frozen.position === "left");
				element.classList.toggle("tabulator-frozen-right", column.modules.frozen.edge && column.modules.frozen.position === "right");
			}
		}

		adjustForScrollbar(width){
			if(this.rightColumns.length){
				this.table.columnManager.getContentsElement().style.width = "calc(100% - " + width + "px)";
			}
		}

		getFrozenColumns(){
			return this.leftColumns.concat(this.rightColumns);
		}
		
		_calcSpace(columns, index){
			var width = 0;
			
			for (let i = 0; i < index; i++){
				if(columns[i].visible){
					width += columns[i].getWidth();
				}
			}
			
			return width;
		}
	}

	class FrozenRows extends Module{

		static moduleName = "frozenRows";

		constructor(table){
			super(table);

			this.topElement = document.createElement("div");
			this.rows = [];

			//register component functions
			this.registerComponentFunction("row", "freeze", this.freezeRow.bind(this));
			this.registerComponentFunction("row", "unfreeze", this.unfreezeRow.bind(this));
			this.registerComponentFunction("row", "isFrozen", this.isRowFrozen.bind(this));

			//register table options
			this.registerTableOption("frozenRowsField", "id"); //field to choose frozen rows by
			this.registerTableOption("frozenRows", false); //holder for frozen row identifiers
		}

		initialize(){
			var	fragment = document.createDocumentFragment();
			
			this.rows = [];

			this.topElement.classList.add("tabulator-frozen-rows-holder");
			
			fragment.appendChild(document.createElement("br"));
			fragment.appendChild(this.topElement);

			// this.table.columnManager.element.append(this.topElement);
			this.table.columnManager.getContentsElement().insertBefore(fragment, this.table.columnManager.headersElement.nextSibling);

			this.subscribe("row-deleting", this.detachRow.bind(this));
			this.subscribe("rows-visible", this.visibleRows.bind(this));

			this.registerDisplayHandler(this.getRows.bind(this), 10);

			if(this.table.options.frozenRows){
				this.subscribe("data-processed", this.initializeRows.bind(this));
				this.subscribe("row-added", this.initializeRow.bind(this));
				this.subscribe("table-redrawing", this.resizeHolderWidth.bind(this));
				this.subscribe("column-resized", this.resizeHolderWidth.bind(this));
				this.subscribe("column-show", this.resizeHolderWidth.bind(this));
				this.subscribe("column-hide", this.resizeHolderWidth.bind(this));
			}

			this.resizeHolderWidth();
		}

		resizeHolderWidth(){
			this.topElement.style.minWidth = this.table.columnManager.headersElement.offsetWidth + "px";
		}

		initializeRows(){
			this.table.rowManager.getRows().forEach((row) => {
				this.initializeRow(row);
			});
		}

		initializeRow(row){
			var frozenRows = this.table.options.frozenRows,
			rowType = typeof frozenRows;

			if(rowType === "number"){
				if(row.getPosition() && (row.getPosition() + this.rows.length) <= frozenRows){
					this.freezeRow(row);
				}
			}else if(rowType === "function"){
				if(frozenRows.call(this.table, row.getComponent())){
					this.freezeRow(row);
				}
			}else if(Array.isArray(frozenRows)){
				if(frozenRows.includes(row.data[this.options("frozenRowsField")])){
					this.freezeRow(row);
				}
			}
		}

		isRowFrozen(row){
			var index = this.rows.indexOf(row);
			return index > -1;
		}

		isFrozen(){
			return !!this.rows.length;
		}

		visibleRows(viewable, rows){
			this.rows.forEach((row) => {
				rows.push(row);
			});

			return rows;
		}

		//filter frozen rows out of display data
		getRows(rows){
			var output = rows.slice(0);

			this.rows.forEach(function(row){
				var index = output.indexOf(row);

				if(index > -1){
					output.splice(index, 1);
				}
			});

			return output;
		}

		freezeRow(row){
			if(!row.modules.frozen){
				row.modules.frozen = true;
				this.topElement.appendChild(row.getElement());
				row.initialize();
				row.normalizeHeight();
			
				this.rows.push(row);

				this.refreshData(false, "display");

				this.table.rowManager.adjustTableSize();

				this.styleRows();

			}else {
				console.warn("Freeze Error - Row is already frozen");
			}
		}

		unfreezeRow(row){
			if(row.modules.frozen){

				row.modules.frozen = false;

				this.detachRow(row);

				this.table.rowManager.adjustTableSize();

				this.refreshData(false, "display");

				if(this.rows.length){
					this.styleRows();
				}

			}else {
				console.warn("Freeze Error - Row is already unfrozen");
			}
		}

		detachRow(row){
			var index = this.rows.indexOf(row);

			if(index > -1){
				var rowEl = row.getElement();

				if(rowEl.parentNode){
					rowEl.parentNode.removeChild(rowEl);
				}

				this.rows.splice(index, 1);
			}
		}

		styleRows(row){
			this.rows.forEach((row, i) => {
				this.table.rowManager.styleRow(row, i);
			});
		}
	}

	//public group object
	class GroupComponent {
		constructor (group){
			this._group = group;
			this.type = "GroupComponent";

			return new Proxy(this, {
				get: function(target, name, receiver) {
					if (typeof target[name] !== "undefined") {
						return target[name];
					}else {
						return target._group.groupManager.table.componentFunctionBinder.handle("group", target._group, name);
					}
				}
			});
		}

		getKey(){
			return this._group.key;
		}

		getField(){
			return this._group.field;
		}

		getElement(){
			return this._group.element;
		}

		getRows(){
			return this._group.getRows(true);
		}

		getSubGroups(){
			return this._group.getSubGroups(true);
		}

		getParentGroup(){
			return this._group.parent ? this._group.parent.getComponent() : false;
		}

		isVisible(){
			return this._group.visible;
		}

		show(){
			this._group.show();
		}

		hide(){
			this._group.hide();
		}

		toggle(){
			this._group.toggleVisibility();
		}

		scrollTo(position, ifVisible){
			return this._group.groupManager.table.rowManager.scrollToRow(this._group, position, ifVisible);
		}

		_getSelf(){
			return this._group;
		}

		getTable(){
			return this._group.groupManager.table;
		}
	}

	//Group functions
	class Group{
		
		constructor(groupManager, parent, level, key, field, generator, oldGroup){
			this.groupManager = groupManager;
			this.parent = parent;
			this.key = key;
			this.level = level;
			this.field = field;
			this.hasSubGroups = level < (groupManager.groupIDLookups.length - 1);
			this.addRow = this.hasSubGroups ? this._addRowToGroup : this._addRow;
			this.type = "group"; //type of element
			this.old = oldGroup;
			this.rows = [];
			this.groups = [];
			this.groupList = [];
			this.generator = generator;
			this.element = false;
			this.elementContents = false;
			this.height = 0;
			this.outerHeight = 0;
			this.initialized = false;
			this.calcs = {};
			this.initialized = false;
			this.modules = {};
			this.arrowElement = false;
			
			this.visible = oldGroup ? oldGroup.visible : (typeof groupManager.startOpen[level] !== "undefined" ? groupManager.startOpen[level] : groupManager.startOpen[0]);
			
			this.component = null;
			
			this.createElements();
			this.addBindings();
			
			this.createValueGroups();
		}
		
		wipe(elementsOnly){
			if(!elementsOnly){
				if(this.groupList.length){
					this.groupList.forEach(function(group){
						group.wipe();
					});
				}else {
					this.rows.forEach((row) => {
						if(row.modules){
							delete row.modules.group;
						}
					});
				}
			}
			
			this.element = false;
			this.arrowElement = false;
			this.elementContents = false;
		}
		
		createElements(){
			var arrow = document.createElement("div");
			arrow.classList.add("tabulator-arrow");
			
			this.element = document.createElement("div");
			this.element.classList.add("tabulator-row");
			this.element.classList.add("tabulator-group");
			this.element.classList.add("tabulator-group-level-" + this.level);
			this.element.setAttribute("role", "rowgroup");
			
			this.arrowElement = document.createElement("div");
			this.arrowElement.classList.add("tabulator-group-toggle");
			this.arrowElement.appendChild(arrow);
			
			//setup movable rows
			if(this.groupManager.table.options.movableRows !== false && this.groupManager.table.modExists("moveRow")){
				this.groupManager.table.modules.moveRow.initializeGroupHeader(this);
			}
		}
		
		createValueGroups(){
			var level = this.level + 1;
			if(this.groupManager.allowedValues && this.groupManager.allowedValues[level]){
				this.groupManager.allowedValues[level].forEach((value) => {
					this._createGroup(value, level);
				});
			}
		}
		
		addBindings(){
			var toggleElement;
			
			if(this.groupManager.table.options.groupToggleElement){
				toggleElement = this.groupManager.table.options.groupToggleElement == "arrow" ? this.arrowElement : this.element;
				
				toggleElement.addEventListener("click", (e) => {
					if(this.groupManager.table.options.groupToggleElement === "arrow"){
						e.stopPropagation();
						e.stopImmediatePropagation();
					}

					//allow click event to propagate before toggling visibility
					setTimeout(() => {
						this.toggleVisibility();
					});
				});
			}
		}
		
		_createGroup(groupID, level){
			var groupKey = level + "_" + groupID;
			var group = new Group(this.groupManager, this, level, groupID,  this.groupManager.groupIDLookups[level].field, this.groupManager.headerGenerator[level] || this.groupManager.headerGenerator[0], this.old ? this.old.groups[groupKey] : false);
			
			this.groups[groupKey] = group;
			this.groupList.push(group);
		}
		
		_addRowToGroup(row){
			
			var level = this.level + 1;
			
			if(this.hasSubGroups){
				var groupID = this.groupManager.groupIDLookups[level].func(row.getData()),
				groupKey = level + "_" + groupID;
				
				if(this.groupManager.allowedValues && this.groupManager.allowedValues[level]){
					if(this.groups[groupKey]){
						this.groups[groupKey].addRow(row);
					}
				}else {
					if(!this.groups[groupKey]){
						this._createGroup(groupID, level);
					}
					
					this.groups[groupKey].addRow(row);
				}
			}
		}
		
		_addRow(row){
			this.rows.push(row);
			row.modules.group = this;
		}
		
		insertRow(row, to, after){
			var data = this.conformRowData({});
			
			row.updateData(data);
			
			var toIndex = this.rows.indexOf(to);
			
			if(toIndex > -1){
				if(after){
					this.rows.splice(toIndex+1, 0, row);
				}else {
					this.rows.splice(toIndex, 0, row);
				}
			}else {
				if(after){
					this.rows.push(row);
				}else {
					this.rows.unshift(row);
				}
			}
			
			row.modules.group = this;
			
			// this.generateGroupHeaderContents();
			
			if(this.groupManager.table.modExists("columnCalcs") && this.groupManager.table.options.columnCalcs != "table"){
				this.groupManager.table.modules.columnCalcs.recalcGroup(this);
			}
			
			this.groupManager.updateGroupRows(true);
		}
		
		scrollHeader(left){
			if(this.arrowElement){
				this.arrowElement.style.marginLeft = left;
				
				this.groupList.forEach(function(child){
					child.scrollHeader(left);
				});
			}
		}
		
		getRowIndex(row){}
		
		//update row data to match grouping constraints
		conformRowData(data){
			if(this.field){
				data[this.field] = this.key;
			}else {
				console.warn("Data Conforming Error - Cannot conform row data to match new group as groupBy is a function");
			}
			
			if(this.parent){
				data = this.parent.conformRowData(data);
			}
			
			return data;
		}
		
		removeRow(row){
			var index = this.rows.indexOf(row);
			var el = row.getElement();
			
			if(index > -1){
				this.rows.splice(index, 1);
			}
			
			if(!this.groupManager.table.options.groupValues && !this.rows.length){
				if(this.parent){
					this.parent.removeGroup(this);
				}else {
					this.groupManager.removeGroup(this);
				}		
				
				this.groupManager.updateGroupRows(true);
				
			}else {
				
				if(el.parentNode){
					el.parentNode.removeChild(el);
				}
				
				if(!this.groupManager.blockRedraw){
					this.generateGroupHeaderContents();
					
					if(this.groupManager.table.modExists("columnCalcs") && this.groupManager.table.options.columnCalcs != "table"){
						this.groupManager.table.modules.columnCalcs.recalcGroup(this);
					}
				}
				
			}
		}
		
		removeGroup(group){
			var groupKey = group.level + "_" + group.key,
			index;
			
			if(this.groups[groupKey]){
				delete this.groups[groupKey];
				
				index = this.groupList.indexOf(group);
				
				if(index > -1){
					this.groupList.splice(index, 1);
				}
				
				if(!this.groupList.length){
					if(this.parent){
						this.parent.removeGroup(this);
					}else {
						this.groupManager.removeGroup(this);
					}
				}
			}
		}
		
		getHeadersAndRows(){
			var output = [];
			
			output.push(this);
			
			this._visSet();
			
			
			if(this.calcs.top){
				this.calcs.top.detachElement();
				this.calcs.top.deleteCells();
			}
			
			if(this.calcs.bottom){
				this.calcs.bottom.detachElement();
				this.calcs.bottom.deleteCells();
			}
			
			
			
			if(this.visible){
				if(this.groupList.length){
					this.groupList.forEach(function(group){
						output = output.concat(group.getHeadersAndRows());
					});
					
				}else {
					if(this.groupManager.table.options.columnCalcs != "table" && this.groupManager.table.modExists("columnCalcs") && this.groupManager.table.modules.columnCalcs.hasTopCalcs()){
						this.calcs.top = this.groupManager.table.modules.columnCalcs.generateTopRow(this.rows);
						output.push(this.calcs.top);
					}
					
					output = output.concat(this.rows);
					
					if(this.groupManager.table.options.columnCalcs != "table" &&  this.groupManager.table.modExists("columnCalcs") && this.groupManager.table.modules.columnCalcs.hasBottomCalcs()){
						this.calcs.bottom = this.groupManager.table.modules.columnCalcs.generateBottomRow(this.rows);
						output.push(this.calcs.bottom);
					}
				}
			}else {
				if(!this.groupList.length && this.groupManager.table.options.columnCalcs != "table"){
					
					if(this.groupManager.table.modExists("columnCalcs")){
						if(this.groupManager.table.modules.columnCalcs.hasTopCalcs()){
							if(this.groupManager.table.options.groupClosedShowCalcs){
								this.calcs.top = this.groupManager.table.modules.columnCalcs.generateTopRow(this.rows);
								output.push(this.calcs.top);
							}
						}
						
						if(this.groupManager.table.modules.columnCalcs.hasBottomCalcs()){						
							if(this.groupManager.table.options.groupClosedShowCalcs){
								this.calcs.bottom = this.groupManager.table.modules.columnCalcs.generateBottomRow(this.rows);
								output.push(this.calcs.bottom);
							}
						}
					}
				}
				
			}
			
			return output;
		}
		
		getData(visible, transform){
			var output = [];
			
			this._visSet();
			
			if(!visible || (visible && this.visible)){
				this.rows.forEach((row) => {
					output.push(row.getData(transform || "data"));
				});
			}
			
			return output;
		}
		
		getRowCount(){
			var count = 0;
			
			if(this.groupList.length){
				this.groupList.forEach((group) => {
					count += group.getRowCount();
				});
			}else {
				count = this.rows.length;
			}
			return count;
		}

		
		toggleVisibility(){
			if(this.visible){
				this.hide();
			}else {
				this.show();
			}
		}
		
		hide(){
			this.visible = false;
			
			if(this.groupManager.table.rowManager.getRenderMode() == "basic" && !this.groupManager.table.options.pagination){
				
				this.element.classList.remove("tabulator-group-visible");
				
				if(this.groupList.length){
					this.groupList.forEach((group) => {
						
						var rows = group.getHeadersAndRows();
						
						rows.forEach((row) => {
							row.detachElement();
						});
					});
					
				}else {
					this.rows.forEach((row) => {
						var rowEl = row.getElement();
						rowEl.parentNode.removeChild(rowEl);
					});
				}
				
				this.groupManager.updateGroupRows(true);
				
			}else {
				this.groupManager.updateGroupRows(true);
			}
			
			this.groupManager.table.externalEvents.dispatch("groupVisibilityChanged", this.getComponent(), false);
		}
		
		show(){
			this.visible = true;
			
			if(this.groupManager.table.rowManager.getRenderMode() == "basic" && !this.groupManager.table.options.pagination){
				
				this.element.classList.add("tabulator-group-visible");
				
				var prev = this.generateElement();
				
				if(this.groupList.length){
					this.groupList.forEach((group) => {
						var rows = group.getHeadersAndRows();
						
						rows.forEach((row) => {
							var rowEl = row.getElement();
							prev.parentNode.insertBefore(rowEl, prev.nextSibling);
							row.initialize();
							prev = rowEl;
						});
					});
					
				}else {
					this.rows.forEach((row) => {
						var rowEl = row.getElement();
						prev.parentNode.insertBefore(rowEl, prev.nextSibling);
						row.initialize();
						prev = rowEl;
					});
				}
				
				this.groupManager.updateGroupRows(true);
			}else {
				this.groupManager.updateGroupRows(true);
			}
			
			this.groupManager.table.externalEvents.dispatch("groupVisibilityChanged", this.getComponent(), true);
		}
		
		_visSet(){
			var data = [];
			
			if(typeof this.visible == "function"){
				
				this.rows.forEach(function(row){
					data.push(row.getData());
				});
				
				this.visible = this.visible(this.key, this.getRowCount(), data, this.getComponent());
			}
		}
		
		getRowGroup(row){
			var match = false;
			if(this.groupList.length){
				this.groupList.forEach(function(group){
					var result = group.getRowGroup(row);
					
					if(result){
						match = result;
					}
				});
			}else {
				if(this.rows.find(function(item){
					return item === row;
				})){
					match = this;
				}
			}
			
			return match;
		}
		
		getSubGroups(component){
			var output = [];
			
			this.groupList.forEach(function(child){
				output.push(component ? child.getComponent() : child);
			});
			
			return output;
		}
		
		getRows(component, includeChildren){
			var output = [];
			
			if(includeChildren && this.groupList.length){
				this.groupList.forEach((group) => {
					output = output.concat(group.getRows(component, includeChildren));
				});
			}else {
				this.rows.forEach(function(row){
					output.push(component ? row.getComponent() : row);
				});
			}
			
			return output;
		}
		
		generateGroupHeaderContents(){
			var data = [];
			
			var rows = this.getRows(false, true);
			
			rows.forEach(function(row){
				data.push(row.getData());
			});
			
			this.elementContents = this.generator(this.key, this.getRowCount(), data, this.getComponent());
			
			while(this.element.firstChild) this.element.removeChild(this.element.firstChild);
			
			if(typeof this.elementContents === "string"){
				this.element.innerHTML = this.elementContents;
			}else {
				this.element.appendChild(this.elementContents);
			}
			
			this.element.insertBefore(this.arrowElement, this.element.firstChild);
		}
		
		getPath(path = []) {
			path.unshift(this.key);
			if(this.parent) {
				this.parent.getPath(path);
			}
			return path;
		}
		
		////////////// Standard Row Functions //////////////
		
		getElement(){
			return this.elementContents ? this.element : this.generateElement();
		}
		
		generateElement(){
			this.addBindings = false;
			
			this._visSet();
			
			if(this.visible){
				this.element.classList.add("tabulator-group-visible");
			}else {
				this.element.classList.remove("tabulator-group-visible");
			}
			
			for(var i = 0; i < this.element.childNodes.length; ++i){
				this.element.childNodes[i].parentNode.removeChild(this.element.childNodes[i]);
			}
			
			this.generateGroupHeaderContents();
			
			// this.addBindings();
			
			return this.element;
		}
		
		detachElement(){
			if (this.element && this.element.parentNode){
				this.element.parentNode.removeChild(this.element);
			}
		}
		
		//normalize the height of elements in the row
		normalizeHeight(){
			this.setHeight(this.element.clientHeight);
		}
		
		initialize(force){
			if(!this.initialized || force){
				this.normalizeHeight();
				this.initialized = true;
			}
		}
		
		reinitialize(){
			this.initialized = false;
			this.height = 0;
			
			if(Helpers.elVisible(this.element)){
				this.initialize(true);
			}
		}
		
		setHeight(height){
			if(this.height != height){
				this.height = height;
				this.outerHeight = this.element.offsetHeight;
			}
		}
		
		//return rows outer height
		getHeight(){
			return this.outerHeight;
		}
		
		getGroup(){
			return this;
		}
		
		reinitializeHeight(){}
		
		calcHeight(){}
		
		setCellHeight(){}
		
		clearCellHeight(){}
		
		deinitializeHeight(){}

		rendered(){}
		
		//////////////// Object Generation /////////////////
		getComponent(){
			if(!this.component){
				this.component = new GroupComponent(this);
			}
			
			return this.component;
		}
	}

	class GroupRows extends Module{

		static moduleName = "groupRows";
		
		constructor(table){
			super(table);
			
			this.groupIDLookups = false; //enable table grouping and set field to group by
			this.startOpen = [function(){return false;}]; //starting state of group
			this.headerGenerator = [function(){return "";}];
			this.groupList = []; //ordered list of groups
			this.allowedValues = false;
			this.groups = {}; //hold row groups
			
			this.displayHandler = this.getRows.bind(this);

			this.blockRedraw = false;
			
			//register table options
			this.registerTableOption("groupBy", false); //enable table grouping and set field to group by
			this.registerTableOption("groupStartOpen", true); //starting state of group
			this.registerTableOption("groupValues", false);
			this.registerTableOption("groupUpdateOnCellEdit", false);
			this.registerTableOption("groupHeader", false); //header generation function
			this.registerTableOption("groupHeaderPrint", null);
			this.registerTableOption("groupHeaderClipboard", null);
			this.registerTableOption("groupHeaderHtmlOutput", null);
			this.registerTableOption("groupHeaderDownload", null);
			this.registerTableOption("groupToggleElement", "arrow");
			this.registerTableOption("groupClosedShowCalcs", false);
			
			//register table functions
			this.registerTableFunction("setGroupBy", this.setGroupBy.bind(this));
			this.registerTableFunction("setGroupValues", this.setGroupValues.bind(this));
			this.registerTableFunction("setGroupStartOpen", this.setGroupStartOpen.bind(this));
			this.registerTableFunction("setGroupHeader", this.setGroupHeader.bind(this));
			this.registerTableFunction("getGroups", this.userGetGroups.bind(this));
			this.registerTableFunction("getGroupedData", this.userGetGroupedData.bind(this));
			
			//register component functions
			this.registerComponentFunction("row", "getGroup", this.rowGetGroup.bind(this));
		}
		
		//initialize group configuration
		initialize(){
			this.subscribe("table-destroy", this._blockRedrawing.bind(this));
			this.subscribe("rows-wipe", this._blockRedrawing.bind(this));
			this.subscribe("rows-wiped", this._restore_redrawing.bind(this));

			if(this.table.options.groupBy){
				if(this.table.options.groupUpdateOnCellEdit){
					this.subscribe("cell-value-updated", this.cellUpdated.bind(this));
					this.subscribe("row-data-changed", this.reassignRowToGroup.bind(this), 0);
				}
				
				this.subscribe("table-built", this.configureGroupSetup.bind(this));
				
				this.subscribe("row-deleting", this.rowDeleting.bind(this));
				this.subscribe("row-deleted", this.rowsUpdated.bind(this));
				this.subscribe("scroll-horizontal", this.scrollHeaders.bind(this));
				this.subscribe("rows-wipe", this.wipe.bind(this));
				this.subscribe("rows-added", this.rowsUpdated.bind(this));
				this.subscribe("row-moving", this.rowMoving.bind(this));
				this.subscribe("row-adding-index", this.rowAddingIndex.bind(this));
				
				this.subscribe("rows-sample", this.rowSample.bind(this));
				
				this.subscribe("render-virtual-fill", this.virtualRenderFill.bind(this));
				
				this.registerDisplayHandler(this.displayHandler, 20);
				
				this.initialized = true;
			}
		}
		
		_blockRedrawing(){
			this.blockRedraw = true;
		}

		_restore_redrawing(){
			this.blockRedraw = false;
		}

		configureGroupSetup(){
			if(this.table.options.groupBy){
				var groupBy = this.table.options.groupBy,
				startOpen = this.table.options.groupStartOpen,
				groupHeader = this.table.options.groupHeader;
				
				this.allowedValues = this.table.options.groupValues;
				
				if(Array.isArray(groupBy) && Array.isArray(groupHeader) && groupBy.length > groupHeader.length){
					console.warn("Error creating group headers, groupHeader array is shorter than groupBy array");
				}
				
				this.headerGenerator = [function(){return "";}];
				this.startOpen = [function(){return false;}]; //starting state of group
				
				this.langBind("groups|item", (langValue, lang) => {
					this.headerGenerator[0] = (value, count, data) => { //header layout function
						return (typeof value === "undefined" ? "" : value) + "<span>(" + count + " " + ((count === 1) ? langValue : lang.groups.items) + ")</span>";
					};
				});
				
				this.groupIDLookups = [];
				
				if(groupBy){
					if(this.table.modExists("columnCalcs") && this.table.options.columnCalcs != "table" && this.table.options.columnCalcs != "both"){
						this.table.modules.columnCalcs.removeCalcs();
					}
				}else {
					if(this.table.modExists("columnCalcs") && this.table.options.columnCalcs != "group"){
						
						var cols = this.table.columnManager.getRealColumns();
						
						cols.forEach((col) => {
							if(col.definition.topCalc){
								this.table.modules.columnCalcs.initializeTopRow();
							}
							
							if(col.definition.bottomCalc){
								this.table.modules.columnCalcs.initializeBottomRow();
							}
						});
					}
				}
				
				if(!Array.isArray(groupBy)){
					groupBy = [groupBy];
				}
				
				groupBy.forEach((group, i) => {
					var lookupFunc, column;
					
					if(typeof group == "function"){
						lookupFunc = group;
					}else {
						column = this.table.columnManager.getColumnByField(group);
						
						if(column){
							lookupFunc = function(data){
								return column.getFieldValue(data);
							};
						}else {
							lookupFunc = function(data){
								return data[group];
							};
						}
					}
					
					this.groupIDLookups.push({
						field: typeof group === "function" ? false : group,
						func:lookupFunc,
						values:this.allowedValues ? this.allowedValues[i] : false,
					});
				});
				
				if(startOpen){
					if(!Array.isArray(startOpen)){
						startOpen = [startOpen];
					}
					
					startOpen.forEach((level) => {
					});
					
					this.startOpen = startOpen;
				}
				
				if(groupHeader){
					this.headerGenerator = Array.isArray(groupHeader) ? groupHeader : [groupHeader];
				}
			}else {
				this.groupList = [];
				this.groups = {};
			}
		}
		
		rowSample(rows, prevValue){
			if(this.table.options.groupBy){
				var group = this.getGroups(false)[0];
				
				prevValue.push(group.getRows(false)[0]);
			}
			
			return prevValue;
		}
		
		virtualRenderFill(){
			var el = this.table.rowManager.tableElement;
			var rows = this.table.rowManager.getVisibleRows();
			
			if(this.table.options.groupBy){
				rows = rows.filter((row) => {
					return row.type !== "group";
				});
				
				el.style.minWidth = !rows.length ? this.table.columnManager.getWidth() + "px" : "";
			}else {
				return rows;
			}
		}
		
		rowAddingIndex(row, index, top){
			if(this.table.options.groupBy){
				this.assignRowToGroup(row);
				
				var groupRows = row.modules.group.rows;
				
				if(groupRows.length > 1){
					if(!index || (index && groupRows.indexOf(index) == -1)){
						if(top){
							if(groupRows[0] !== row){
								index = groupRows[0];
								this.table.rowManager.moveRowInArray(row.modules.group.rows, row, index, !top);
							}
						}else {
							if(groupRows[groupRows.length -1] !== row){
								index = groupRows[groupRows.length -1];
								this.table.rowManager.moveRowInArray(row.modules.group.rows, row, index, !top);
							}
						}
					}else {
						this.table.rowManager.moveRowInArray(row.modules.group.rows, row, index, !top);
					}
				}
				
				return index;
			}
		}
		
		trackChanges(){
			this.dispatch("group-changed");
		}
		
		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////
		
		setGroupBy(groups){
			this.table.options.groupBy = groups;
			
			if(!this.initialized){
				this.initialize();
			}
			
			this.configureGroupSetup();

			if(!groups && this.table.modExists("columnCalcs") && this.table.options.columnCalcs === true){
				this.table.modules.columnCalcs.reinitializeCalcs();
			}
			
			this.refreshData();
			
			this.trackChanges();
		}
		
		setGroupValues(groupValues){
			this.table.options.groupValues = groupValues;
			this.configureGroupSetup();
			this.refreshData();
			
			this.trackChanges();
		}
		
		setGroupStartOpen(values){
			this.table.options.groupStartOpen = values;
			this.configureGroupSetup();
			
			if(this.table.options.groupBy){
				this.refreshData();
				
				this.trackChanges();
			}else {
				console.warn("Grouping Update - cant refresh view, no groups have been set");
			}
		}
		
		setGroupHeader(values){
			this.table.options.groupHeader = values;
			this.configureGroupSetup();
			
			if(this.table.options.groupBy){
				this.refreshData();
				
				this.trackChanges();
			}else {
				console.warn("Grouping Update - cant refresh view, no groups have been set");
			}
		}
		
		userGetGroups(values){
			return this.getGroups(true);
		}
		
		// get grouped table data in the same format as getData()
		userGetGroupedData(){
			return this.table.options.groupBy ? this.getGroupedData() : this.getData();
		}
		
		
		///////////////////////////////////////
		///////// Component Functions /////////
		///////////////////////////////////////
		
		rowGetGroup(row){
			return row.modules.group ? row.modules.group.getComponent() : false;
		}
		
		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////
		
		rowMoving(from, to, after){
			if(this.table.options.groupBy){
				if(!after && to instanceof Group){
					to = this.table.rowManager.prevDisplayRow(from) || to;
				}
				
				var toGroup = to instanceof Group ? to : to.modules.group;
				var fromGroup = from instanceof Group ? from : from.modules.group;
				
				if(toGroup === fromGroup){
					this.table.rowManager.moveRowInArray(toGroup.rows, from, to, after);
				}else {
					if(fromGroup){
						fromGroup.removeRow(from);
					}
					
					toGroup.insertRow(from, to, after);
				}
			}
		}
		
		
		rowDeleting(row){
			//remove from group
			if(this.table.options.groupBy && row.modules.group){
				row.modules.group.removeRow(row);
			}
		}
		
		rowsUpdated(row){
			if(this.table.options.groupBy){
				this.updateGroupRows(true);
			}	
		}
		
		cellUpdated(cell){
			if(this.table.options.groupBy){
				this.reassignRowToGroup(cell.row);
			}
		}
		
		//return appropriate rows with group headers
		getRows(rows){
			if(this.table.options.groupBy && this.groupIDLookups.length){
				
				this.dispatchExternal("dataGrouping");
				
				this.generateGroups(rows);
				
				if(this.subscribedExternal("dataGrouped")){
					this.dispatchExternal("dataGrouped", this.getGroups(true));
				}
				
				return this.updateGroupRows();
				
			}else {
				return rows.slice(0);
			}
		}
		
		getGroups(component){
			var groupComponents = [];
			
			this.groupList.forEach(function(group){
				groupComponents.push(component ? group.getComponent() : group);
			});
			
			return groupComponents;
		}
		
		getChildGroups(group){
			var groupComponents = [];
			
			if(!group){
				group = this;
			}
			
			group.groupList.forEach((child) => {
				if(child.groupList.length){
					groupComponents = groupComponents.concat(this.getChildGroups(child));
				}else {
					groupComponents.push(child);
				}
			});
			
			return groupComponents;
		}
		
		wipe(){
			if(this.table.options.groupBy){
				this.groupList.forEach(function(group){
					group.wipe();
				});
				
				this.groupList = [];
				this.groups = {};
			}
		}
		
		pullGroupListData(groupList) {
			var groupListData = [];
			
			groupList.forEach((group) => {
				var groupHeader = {};
				groupHeader.level = 0;
				groupHeader.rowCount = 0;
				groupHeader.headerContent = "";
				var childData = [];
				
				if (group.hasSubGroups) {
					childData = this.pullGroupListData(group.groupList);
					
					groupHeader.level = group.level;
					groupHeader.rowCount = childData.length - group.groupList.length; // data length minus number of sub-headers
					groupHeader.headerContent = group.generator(group.key, groupHeader.rowCount, group.rows, group);
					
					groupListData.push(groupHeader);
					groupListData = groupListData.concat(childData);
				}
				
				else {
					groupHeader.level = group.level;
					groupHeader.headerContent = group.generator(group.key, group.rows.length, group.rows, group);
					groupHeader.rowCount = group.getRows().length;
					
					groupListData.push(groupHeader);
					
					group.getRows().forEach((row) => {
						groupListData.push(row.getData("data"));
					});
				}
			});
			
			return groupListData;
		}
		
		getGroupedData(){
			
			return this.pullGroupListData(this.groupList);
		}
		
		getRowGroup(row){
			var match = false;
			
			if(this.options("dataTree")){
				row = this.table.modules.dataTree.getTreeParentRoot(row);
			}
			
			this.groupList.forEach((group) => {
				var result = group.getRowGroup(row);
				
				if(result){
					match = result;
				}
			});
			
			return match;
		}
		
		countGroups(){
			return this.groupList.length;
		}
		
		generateGroups(rows){
			var oldGroups = this.groups;
			
			this.groups = {};
			this.groupList = [];
			
			if(this.allowedValues && this.allowedValues[0]){
				this.allowedValues[0].forEach((value) => {
					this.createGroup(value, 0, oldGroups);
				});
				
				rows.forEach((row) => {
					this.assignRowToExistingGroup(row, oldGroups);
				});
			}else {
				rows.forEach((row) => {
					this.assignRowToGroup(row, oldGroups);
				});
			}
			
			Object.values(oldGroups).forEach((group) => {
				group.wipe(true);
			});	
		}
		
		
		createGroup(groupID, level, oldGroups){
			var groupKey = level + "_" + groupID,
			group;
			
			oldGroups = oldGroups || [];
			
			group = new Group(this, false, level, groupID, this.groupIDLookups[0].field, this.headerGenerator[0], oldGroups[groupKey]);
			
			this.groups[groupKey] = group;
			this.groupList.push(group);
		}
		
		assignRowToExistingGroup(row, oldGroups){
			var groupID = this.groupIDLookups[0].func(row.getData()),
			groupKey = "0_" + groupID;
			
			if(this.groups[groupKey]){
				this.groups[groupKey].addRow(row);
			}
		}
		
		assignRowToGroup(row, oldGroups){
			var groupID = this.groupIDLookups[0].func(row.getData()),
			newGroupNeeded = !this.groups["0_" + groupID];
			
			if(newGroupNeeded){
				this.createGroup(groupID, 0, oldGroups);
			}
			
			this.groups["0_" + groupID].addRow(row);
			
			return !newGroupNeeded;
		}
		
		reassignRowToGroup(row){
			if(row.type === "row"){
				var oldRowGroup = row.modules.group,
				oldGroupPath = oldRowGroup.getPath(),
				newGroupPath = this.getExpectedPath(row),
				samePath;
				
				// figure out if new group path is the same as old group path
				samePath = (oldGroupPath.length == newGroupPath.length) && oldGroupPath.every((element, index) => {
					return element === newGroupPath[index];
				});
				
				// refresh if they new path and old path aren't the same (aka the row's groupings have changed)
				if(!samePath) {
					oldRowGroup.removeRow(row);
					this.assignRowToGroup(row, this.groups);
					this.refreshData(true);
				}
			}
		}
		
		getExpectedPath(row) {
			var groupPath = [], rowData = row.getData();
			
			this.groupIDLookups.forEach((groupId) => {
				groupPath.push(groupId.func(rowData));
			});
			
			return groupPath;
		}
		
		updateGroupRows(force){
			var output = [];

			if(!this.blockRedraw){
				this.groupList.forEach((group) => {
					output = output.concat(group.getHeadersAndRows());
				});
				
				if(force){
					this.refreshData(true);
				}
			}
			
			return output;
		}
		
		scrollHeaders(left){
			if(this.table.options.groupBy){
				if(this.table.options.renderHorizontal === "virtual"){
					left -= this.table.columnManager.renderer.vDomPadLeft;
				}
				
				left = left + "px";
				
				this.groupList.forEach((group) => {
					group.scrollHeader(left);
				});
			}
		}
		
		removeGroup(group){
			var groupKey = group.level + "_" + group.key,
			index;
			
			if(this.groups[groupKey]){
				delete this.groups[groupKey];
				
				index = this.groupList.indexOf(group);
				
				if(index > -1){
					this.groupList.splice(index, 1);
				}
			}
		}
		
		checkBasicModeGroupHeaderWidth(){
			var element = this.table.rowManager.tableElement,
			onlyGroupHeaders = true;
			
			this.table.rowManager.getDisplayRows().forEach((row, index) =>{
				this.table.rowManager.styleRow(row, index);
				element.appendChild(row.getElement());
				row.initialize(true);
				
				if(row.type !== "group"){
					onlyGroupHeaders = false;
				}
			});
			
			if(onlyGroupHeaders){
				element.style.minWidth = this.table.columnManager.getWidth() + "px";
			}else {
				element.style.minWidth = "";
			}
		}
		
	}

	var defaultUndoers = {
		cellEdit: function(action){
			action.component.setValueProcessData(action.data.oldValue);
			action.component.cellRendered();
		},

		rowAdd: function(action){
			action.component.deleteActual();

			this.table.rowManager.checkPlaceholder();
		},

		rowDelete: function(action){
			var newRow = this.table.rowManager.addRowActual(action.data.data, action.data.pos, action.data.index);

			if(this.table.options.groupBy && this.table.modExists("groupRows")){
				this.table.modules.groupRows.updateGroupRows(true);
			}

			this._rebindRow(action.component, newRow);

			this.table.rowManager.checkPlaceholder();
		},

		rowMove: function(action){
			var after = (action.data.posFrom  - action.data.posTo) > 0;

			this.table.rowManager.moveRowActual(action.component, this.table.rowManager.getRowFromPosition(action.data.posFrom), after);

			this.table.rowManager.regenerateRowPositions();
			this.table.rowManager.reRenderInPosition();
		},
	};

	var defaultRedoers = {
		cellEdit: function(action){
			action.component.setValueProcessData(action.data.newValue);
			action.component.cellRendered();
		},

		rowAdd: function(action){
			var newRow = this.table.rowManager.addRowActual(action.data.data, action.data.pos, action.data.index);

			if(this.table.options.groupBy && this.table.modExists("groupRows")){
				this.table.modules.groupRows.updateGroupRows(true);
			}

			this._rebindRow(action.component, newRow);

			this.table.rowManager.checkPlaceholder();
		},

		rowDelete:function(action){
			action.component.deleteActual();

			this.table.rowManager.checkPlaceholder();
		},

		rowMove: function(action){
			this.table.rowManager.moveRowActual(action.component, this.table.rowManager.getRowFromPosition(action.data.posTo), action.data.after);
			
			this.table.rowManager.regenerateRowPositions();
			this.table.rowManager.reRenderInPosition();
		},
	};

	var bindings$1 = {
		undo:["ctrl + 90", "meta + 90"],
		redo:["ctrl + 89", "meta + 89"],
	};

	var actions$1 = {
		undo:function(e){
			var cell = false;
			if(this.table.options.history && this.table.modExists("history") && this.table.modExists("edit")){

				cell = this.table.modules.edit.currentCell;

				if(!cell){
					e.preventDefault();
					this.table.modules.history.undo();
				}
			}
		},

		redo:function(e){
			var cell = false;
			if(this.table.options.history && this.table.modExists("history") && this.table.modExists("edit")){

				cell = this.table.modules.edit.currentCell;

				if(!cell){
					e.preventDefault();
					this.table.modules.history.redo();
				}
			}
		},
	};

	var extensions$3 = {
		keybindings:{
			bindings:bindings$1,
			actions:actions$1
		},
	};

	class History extends Module{

		static moduleName = "history";
		static moduleExtensions = extensions$3;

		//load defaults
		static undoers = defaultUndoers;
		static redoers = defaultRedoers;

		constructor(table){
			super(table);

			this.history = [];
			this.index = -1;

			this.registerTableOption("history", false); //enable edit history
		}

		initialize(){
			if(this.table.options.history){
				this.subscribe("cell-value-updated", this.cellUpdated.bind(this));
				this.subscribe("cell-delete", this.clearComponentHistory.bind(this));
				this.subscribe("row-delete", this.rowDeleted.bind(this));
				this.subscribe("rows-wipe", this.clear.bind(this));
				this.subscribe("row-added", this.rowAdded.bind(this));
				this.subscribe("row-move", this.rowMoved.bind(this));
			}

			this.registerTableFunction("undo", this.undo.bind(this));
			this.registerTableFunction("redo", this.redo.bind(this));
			this.registerTableFunction("getHistoryUndoSize", this.getHistoryUndoSize.bind(this));
			this.registerTableFunction("getHistoryRedoSize", this.getHistoryRedoSize.bind(this));
			this.registerTableFunction("clearHistory", this.clear.bind(this));
		}

		rowMoved(from, to, after){
			this.action("rowMove", from, {posFrom:from.getPosition(), posTo:to.getPosition(), to:to, after:after});
		}

		rowAdded(row, data, pos, index){
			this.action("rowAdd", row, {data:data, pos:pos, index:index});
		}

		rowDeleted(row){
			var index, rows;

			if(this.table.options.groupBy){

				rows = row.getComponent().getGroup()._getSelf().rows;
				index = rows.indexOf(row);

				if(index){
					index = rows[index-1];
				}
			}else {
				index = row.table.rowManager.getRowIndex(row);

				if(index){
					index = row.table.rowManager.rows[index-1];
				}
			}

			this.action("rowDelete", row, {data:row.getData(), pos:!index, index:index});
		}

		cellUpdated(cell){
			this.action("cellEdit", cell, {oldValue:cell.oldValue, newValue:cell.value});
		}

		clear(){
			this.history = [];
			this.index = -1;
		}

		action(type, component, data){
			this.history = this.history.slice(0, this.index + 1);

			this.history.push({
				type:type,
				component:component,
				data:data,
			});

			this.index ++;
		}

		getHistoryUndoSize(){
			return this.index + 1;
		}

		getHistoryRedoSize(){
			return this.history.length - (this.index + 1);
		}

		clearComponentHistory(component){
			var index = this.history.findIndex(function(item){
				return item.component === component;
			});

			if(index > -1){
				this.history.splice(index, 1);
				if(index <= this.index){
					this.index--;
				}

				this.clearComponentHistory(component);
			}
		}

		undo(){
			if(this.index > -1){
				let action = this.history[this.index];

				History.undoers[action.type].call(this, action);

				this.index--;

				this.dispatchExternal("historyUndo", action.type, action.component.getComponent(), action.data);

				return true;
			}else {
				console.warn(this.options("history") ? "History Undo Error - No more history to undo" : "History module not enabled");
				return false;
			}
		}

		redo(){
			if(this.history.length-1 > this.index){

				this.index++;

				let action = this.history[this.index];

				History.redoers[action.type].call(this, action);

				this.dispatchExternal("historyRedo", action.type, action.component.getComponent(), action.data);

				return true;
			}else {
				console.warn(this.options("history") ? "History Redo Error - No more history to redo" : "History module not enabled");
				return false;
			}
		}

		//rebind rows to new element after deletion
		_rebindRow(oldRow, newRow){
			this.history.forEach(function(action){
				if(action.component instanceof Row){
					if(action.component === oldRow){
						action.component = newRow;
					}
				}else if(action.component instanceof Cell){
					if(action.component.row === oldRow){
						var field = action.component.column.getField();

						if(field){
							action.component = newRow.getCell(field);
						}

					}
				}
			});
		}
	}

	class HtmlTableImport extends Module{

		static moduleName = "htmlTableImport";

		constructor(table){
			super(table);

			this.fieldIndex = [];
			this.hasIndex = false;
		}

		initialize(){
			this.tableElementCheck();
		}

		tableElementCheck(){
			if(this.table.originalElement && this.table.originalElement.tagName === "TABLE"){
				if(this.table.originalElement.childNodes.length){
					this.parseTable();
				}else {
					console.warn("Unable to parse data from empty table tag, Tabulator should be initialized on a div tag unless importing data from a table element.");
				}
			}
		}

		parseTable(){
			var element = this.table.originalElement,
			options = this.table.options,
			headers = element.getElementsByTagName("th"),
			rows = element.getElementsByTagName("tbody")[0],
			data = [];

			this.hasIndex = false;

			this.dispatchExternal("htmlImporting");

			rows = rows ? rows.getElementsByTagName("tr") : [];

			//check for Tabulator inline options
			this._extractOptions(element, options);

			if(headers.length){
				this._extractHeaders(headers, rows);
			}else {
				this._generateBlankHeaders(headers, rows);
			}

			//iterate through table rows and build data set
			for(var index = 0; index < rows.length; index++){
				var row = rows[index],
				cells = row.getElementsByTagName("td"),
				item = {};

				//create index if the don't exist in table
				if(!this.hasIndex){
					item[options.index] = index;
				}

				for(var i = 0; i < cells.length; i++){
					var cell = cells[i];
					if(typeof this.fieldIndex[i] !== "undefined"){
						item[this.fieldIndex[i]] = cell.innerHTML;
					}
				}

				//add row data to item
				data.push(item);
			}

			options.data = data;

			this.dispatchExternal("htmlImported");
		}

		//extract tabulator attribute options
		_extractOptions(element, options, defaultOptions){
			var attributes = element.attributes;
			var optionsArr = defaultOptions ? Object.keys(defaultOptions) : Object.keys(options);
			var optionsList = {};

			optionsArr.forEach((item) => {
				optionsList[item.toLowerCase()] = item;
			});

			for(var index in attributes){
				var attrib = attributes[index];
				var name;

				if(attrib && typeof attrib == "object" && attrib.name && attrib.name.indexOf("tabulator-") === 0){
					name = attrib.name.replace("tabulator-", "");

					if(typeof optionsList[name] !== "undefined"){
						options[optionsList[name]] = this._attribValue(attrib.value);
					}
				}
			}
		}

		//get value of attribute
		_attribValue(value){
			if(value === "true"){
				return true;
			}

			if(value === "false"){
				return false;
			}

			return value;
		}

		//find column if it has already been defined
		_findCol(title){
			var match = this.table.options.columns.find((column) => {
				return column.title === title;
			});

			return match || false;
		}

		//extract column from headers
		_extractHeaders(headers, rows){
			for(var index = 0; index < headers.length; index++){
				var header = headers[index],
				exists = false,
				col = this._findCol(header.textContent),
				width;

				if(col){
					exists = true;
				}else {
					col = {title:header.textContent.trim()};
				}

				if(!col.field) {
					col.field = header.textContent.trim().toLowerCase().replaceAll(" ", "_");
				}

				width = header.getAttribute("width");

				if(width && !col.width)	{
					col.width = width;
				}

				//check for Tabulator inline options
				this._extractOptions(header, col, this.table.columnManager.optionsList.registeredDefaults);

				this.fieldIndex[index] = col.field;

				if(col.field == this.table.options.index){
					this.hasIndex = true;
				}

				if(!exists){
					this.table.options.columns.push(col);
				}

			}
		}

		//generate blank headers
		_generateBlankHeaders(headers, rows){
			for(var index = 0; index < headers.length; index++){
				var header = headers[index],
				col = {title:"", field:"col" + index};

				this.fieldIndex[index] = col.field;

				var width = header.getAttribute("width");

				if(width){
					col.width = width;
				}

				this.table.options.columns.push(col);
			}
		}
	}

	function csv(input){
		var data = [],
		row = 0, 
		col = 0,
		inQuote = false;
	    
		//Iterate over each character
		for (let index = 0; index < input.length; index++) {
			let char = input[index], 
			nextChar = input[index+1];      
	        
			//Initialize empty row
			if(!data[row]){
				data[row] = [];
			}

			//Initialize empty column
			if(!data[row][col]){
				data[row][col] = "";
			}
	        
			//Handle quotation mark inside string
			if (char == '"' && inQuote && nextChar == '"') { 
				data[row][col] += char; 
				index++;
				continue; 
			}
	        
			//Begin / End Quote
			if (char == '"') { 
				inQuote = !inQuote;
				continue;
			}
	        
			//Next column (if not in quote)
			if (char == ',' && !inQuote) { 
				col++;
				continue; 
			}
	        
			//New row if new line and not in quote (CRLF) 
			if (char == '\r' && nextChar == '\n' && !inQuote) { 
				col = 0; 
				row++; 
				index++; 
				continue; 
			}
	        
			//New row if new line and not in quote (CR or LF) 
			if ((char == '\r' || char == '\n') && !inQuote) { 
				col = 0;
				row++;
				continue; 
			}

			//Normal Character, append to column
			data[row][col] += char;
		}

		return data;
	}

	function json(input){
		try {
			return JSON.parse(input);
		} catch(e) {
			console.warn("JSON Import Error - File contents is invalid JSON", e);
			return Promise.reject();
		}
	}

	function array$1 (input){
		return input;
	}

	function xlsx(input){
		var XLSXLib = this.dependencyRegistry.lookup("XLSX"),
		workbook2 = XLSXLib.read(input),
		sheet = workbook2.Sheets[workbook2.SheetNames[0]];
		
		return XLSXLib.utils.sheet_to_json(sheet, {header: 1 });
	}

	var defaultImporters = {
		csv:csv,
		json:json,
		array:array$1,
		xlsx:xlsx,
	};

	class Import extends Module{
		
		static moduleName = "import";
		
		//load defaults
		static importers = defaultImporters;
		
		constructor(table){
			super(table);
			
			this.registerTableOption("importFormat");
			this.registerTableOption("importReader", "text");
			this.registerTableOption("importHeaderTransform");
			this.registerTableOption("importValueTransform");
			this.registerTableOption("importDataValidator");
			this.registerTableOption("importFileValidator");
		}
		
		initialize(){
			this.registerTableFunction("import", this.importFromFile.bind(this));
			
			if(this.table.options.importFormat){
				this.subscribe("data-loading", this.loadDataCheck.bind(this), 10);
				this.subscribe("data-load", this.loadData.bind(this), 10);
			}
		}
		
		loadDataCheck(data){
			return this.table.options.importFormat && (typeof data === "string" || (Array.isArray(data) && data.length && Array.isArray(data)));
		}
		
		loadData(data, params, config, silent, previousData){
			return this.importData(this.lookupImporter(), data)
				.then(this.structureData.bind(this))
				.catch((err) => {
					console.error("Import Error:", err || "Unable to import data");
					return Promise.reject(err);
				});
		}
		
		lookupImporter(importFormat){
			var importer;
			
			if(!importFormat){
				importFormat = this.table.options.importFormat;
			}
			
			if(typeof importFormat === "string"){
				importer = Import.importers[importFormat];
			}else {
				importer = importFormat;
			}
			
			if(!importer){
				console.error("Import Error - Importer not found:", importFormat);
			}
			
			return importer;
		}
		
		importFromFile(importFormat, extension, importReader){
			var importer = this.lookupImporter(importFormat);
			
			if(importer){
				return this.pickFile(extension, importReader)
					.then(this.importData.bind(this, importer))
					.then(this.structureData.bind(this))
					.then(this.mutateData.bind(this))
					.then(this.validateData.bind(this))
					.then(this.setData.bind(this))
					.catch((err) => {
						this.dispatch("import-error", err);
						this.dispatchExternal("importError", err);
						
						console.error("Import Error:", err || "Unable to import file");
						
						this.table.dataLoader.alertError();

						setTimeout(() => {
							this.table.dataLoader.clearAlert();
						}, 3000);
						
						return Promise.reject(err);
					});
			}
		}
		
		pickFile(extensions, importReader){
			return new Promise((resolve, reject) => {
				var input = document.createElement("input");
				input.type = "file";
				input.accept = extensions;
				
				input.addEventListener("change", (e) => {
					var file = input.files[0],
					reader = new FileReader(),
					valid = this.validateFile(file);

					if(valid === true){
					
						this.dispatch("import-importing", input.files);
						this.dispatchExternal("importImporting", input.files);
					
						switch(importReader || this.table.options.importReader){
							case "buffer":
								reader.readAsArrayBuffer(file);
								break;
							
							case "binary":
								reader.readAsBinaryString(file);
								break;
							
							case "url":
								reader.readAsDataURL(file);
								break;
							
							case "text":
							default:
								reader.readAsText(file);
						}
						
						reader.onload = (e) => {
							resolve(reader.result);
						};
						
						reader.onerror = (e) => {
							console.warn("File Load Error - Unable to read file");
							reject(e);
						};
					}else {
						reject(valid);
					}
				});
				
				this.dispatch("import-choose");
				this.dispatchExternal("importChoose");
				input.click();
			});
		}
		
		importData(importer, fileContents){
			var data;
			
			this.table.dataLoader.alertLoader();
			
			return new Promise((resolve, reject) => {
				setTimeout(() => {
					data = importer.call(this.table, fileContents);
					
					if(data instanceof Promise){
						resolve(data);
					}else {
						data ? resolve(data) : reject();
					}
				}, 10);
			});
		}
		
		structureData(parsedData){
			var data = [];
			
			if(Array.isArray(parsedData) && parsedData.length && Array.isArray(parsedData[0])){
				if(this.table.options.autoColumns){
					data = this.structureArrayToObject(parsedData);
				}else {
					data = this.structureArrayToColumns(parsedData);
				}
				
				return data;
			}else {
				return parsedData;
			}
		}
		
		mutateData(data){
			var output = [];
			
			if(Array.isArray(data)){
				data.forEach((row) => {
					output.push(this.table.modules.mutator.transformRow(row, "import"));
				});
			}else {
				output = data;
			}
			
			return output;
		}
		
		transformHeader(headers){
			var output = [];
			
			if(this.table.options.importHeaderTransform){
				headers.forEach((item) => {
					output.push(this.table.options.importHeaderTransform.call(this.table, item, headers));
				});
			}else {
				return headers;
			}
			
			return output;
		}
		
		transformData(row){
			var output = [];

			if(this.table.options.importValueTransform){
				row.forEach((item) => {
					output.push(this.table.options.importValueTransform.call(this.table, item, row));
				});
			}else {
				return row;
			}
			
			return output;
		}
		
		structureArrayToObject(parsedData){
			var columns = this.transformHeader(parsedData.shift());	
			
			var data = parsedData.map((values) => {
				var row = {};

				values = this.transformData(values);
				
				columns.forEach((key, i) => {
					row[key] = values[i];
				});
				
				return row;
			});
			
			return data;
		}
		
		structureArrayToColumns(parsedData){
			var data = [],
			firstRow = this.transformHeader(parsedData[0]),
			columns = this.table.getColumns();
			
			//remove first row if it is the column names
			if(columns[0] && firstRow[0]){
				if(columns[0].getDefinition().title === firstRow[0]){
					parsedData.shift();
				}
			}
			
			//convert row arrays to objects
			parsedData.forEach((rowData) => {
				var row = {};

				rowData = this.transformData(rowData);
				
				rowData.forEach((value, index) => {
					var column = columns[index];
					
					if(column){
						row[column.getField()] = value;
					}
				});
				
				data.push(row);
			});
			
			return data;
		}

		validateFile(file){
			if(this.table.options.importFileValidator){
				return this.table.options.importFileValidator.call(this.table, file);
			}

			return true;
		}

		validateData(data){
			var result;

			if(this.table.options.importDataValidator){
				result = this.table.options.importDataValidator.call(this.table, data);

				if(result === true){
					return data;
				}else {
					return Promise.reject(result);
				}
			}

			return data;
		}
		
		setData(data){
			this.dispatch("import-imported", data);
			this.dispatchExternal("importImported", data);
			
			this.table.dataLoader.clearAlert();
			
			return this.table.setData(data);
		}
	}

	class Interaction extends Module{

		static moduleName = "interaction";

		constructor(table){
			super(table);

			this.eventMap = {
				//row events
				rowClick:"row-click",
				rowDblClick:"row-dblclick",
				rowContext:"row-contextmenu",
				rowMouseEnter:"row-mouseenter",
				rowMouseLeave:"row-mouseleave",
				rowMouseOver:"row-mouseover",
				rowMouseOut:"row-mouseout",
				rowMouseMove:"row-mousemove",
				rowMouseDown:"row-mousedown",
				rowMouseUp:"row-mouseup",
				rowTap:"row",
				rowDblTap:"row",
				rowTapHold:"row",

				//cell events
				cellClick:"cell-click",
				cellDblClick:"cell-dblclick",
				cellContext:"cell-contextmenu",
				cellMouseEnter:"cell-mouseenter",
				cellMouseLeave:"cell-mouseleave",
				cellMouseOver:"cell-mouseover",
				cellMouseOut:"cell-mouseout",
				cellMouseMove:"cell-mousemove",
				cellMouseDown:"cell-mousedown",
				cellMouseUp:"cell-mouseup",
				cellTap:"cell",
				cellDblTap:"cell",
				cellTapHold:"cell",

				//column header events
				headerClick:"column-click",
				headerDblClick:"column-dblclick",
				headerContext:"column-contextmenu",
				headerMouseEnter:"column-mouseenter",
				headerMouseLeave:"column-mouseleave",
				headerMouseOver:"column-mouseover",
				headerMouseOut:"column-mouseout",
				headerMouseMove:"column-mousemove",
				headerMouseDown:"column-mousedown",
				headerMouseUp:"column-mouseup",
				headerTap:"column",
				headerDblTap:"column",
				headerTapHold:"column",

				//group header
				groupClick:"group-click",
				groupDblClick:"group-dblclick",
				groupContext:"group-contextmenu",
				groupMouseEnter:"group-mouseenter",
				groupMouseLeave:"group-mouseleave",
				groupMouseOver:"group-mouseover",
				groupMouseOut:"group-mouseout",
				groupMouseMove:"group-mousemove",
				groupMouseDown:"group-mousedown",
				groupMouseUp:"group-mouseup",
				groupTap:"group",
				groupDblTap:"group",
				groupTapHold:"group",
			};

			this.subscribers = {};

			this.touchSubscribers = {};

			this.columnSubscribers = {};

			this.touchWatchers = {
				row:{
					tap:null,
					tapDbl:null,
					tapHold:null,
				},
				cell:{
					tap:null,
					tapDbl:null,
					tapHold:null,
				},
				column:{
					tap:null,
					tapDbl:null,
					tapHold:null,
				},
				group:{
					tap:null,
					tapDbl:null,
					tapHold:null,
				}
			};

			this.registerColumnOption("headerClick");
			this.registerColumnOption("headerDblClick");
			this.registerColumnOption("headerContext");
			this.registerColumnOption("headerMouseEnter");
			this.registerColumnOption("headerMouseLeave");
			this.registerColumnOption("headerMouseOver");
			this.registerColumnOption("headerMouseOut");
			this.registerColumnOption("headerMouseMove");
			this.registerColumnOption("headerMouseDown");
			this.registerColumnOption("headerMouseUp");
			this.registerColumnOption("headerTap");
			this.registerColumnOption("headerDblTap");
			this.registerColumnOption("headerTapHold");

			this.registerColumnOption("cellClick");
			this.registerColumnOption("cellDblClick");
			this.registerColumnOption("cellContext");
			this.registerColumnOption("cellMouseEnter");
			this.registerColumnOption("cellMouseLeave");
			this.registerColumnOption("cellMouseOver");
			this.registerColumnOption("cellMouseOut");
			this.registerColumnOption("cellMouseMove");
			this.registerColumnOption("cellMouseDown");
			this.registerColumnOption("cellMouseUp");
			this.registerColumnOption("cellTap");
			this.registerColumnOption("cellDblTap");
			this.registerColumnOption("cellTapHold");

		}

		initialize(){
			this.initializeExternalEvents();

			this.subscribe("column-init", this.initializeColumn.bind(this));
			this.subscribe("cell-dblclick", this.cellContentsSelectionFixer.bind(this));
			this.subscribe("scroll-horizontal", this.clearTouchWatchers.bind(this));
			this.subscribe("scroll-vertical", this.clearTouchWatchers.bind(this));
		}

		clearTouchWatchers(){
			var types = Object.values(this.touchWatchers);

			types.forEach((type) => {
				for(let key in type){
					type[key] = null;
				}
			});
		}
			
		cellContentsSelectionFixer(e, cell){
			var range;

			if(this.table.modExists("edit")){
				if (this.table.modules.edit.currentCell === cell){
					return; //prevent instant selection of editor content
				}
			}

			e.preventDefault();

			try{
				if (document.selection) { // IE
					range = document.body.createTextRange();
					range.moveToElementText(cell.getElement());
					range.select();
				} else if (window.getSelection) {
					range = document.createRange();
					range.selectNode(cell.getElement());
					window.getSelection().removeAllRanges();
					window.getSelection().addRange(range);
				}
			}catch(e){}
		}

		initializeExternalEvents(){
			for(let key in this.eventMap){
				this.subscriptionChangeExternal(key, this.subscriptionChanged.bind(this, key));
			}
		}

		subscriptionChanged(key, added){
			if(added){
				if(!this.subscribers[key]){
					if(this.eventMap[key].includes("-")){
						this.subscribers[key] = this.handle.bind(this, key);
						this.subscribe(this.eventMap[key], this.subscribers[key]);
					}else {
						this.subscribeTouchEvents(key);
					}
				}
			}else {
				if(this.eventMap[key].includes("-")){
					if(this.subscribers[key] && !this.columnSubscribers[key]  && !this.subscribedExternal(key)){
						this.unsubscribe(this.eventMap[key], this.subscribers[key]);
						delete this.subscribers[key];
					}
				}else {
					this.unsubscribeTouchEvents(key);
				}
			}
		}


		subscribeTouchEvents(key){
			var type = this.eventMap[key];

			if(!this.touchSubscribers[type + "-touchstart"]){
				this.touchSubscribers[type + "-touchstart"] = this.handleTouch.bind(this, type, "start");
				this.touchSubscribers[type + "-touchend"] = this.handleTouch.bind(this, type, "end");

				this.subscribe(type + "-touchstart", this.touchSubscribers[type + "-touchstart"]);
				this.subscribe(type + "-touchend", this.touchSubscribers[type + "-touchend"]);
			}

			this.subscribers[key] = true;
		}

		unsubscribeTouchEvents(key){
			var noTouch = true,
			type = this.eventMap[key];

			if(this.subscribers[key] && !this.subscribedExternal(key)){
				delete this.subscribers[key];

				for(let i in this.eventMap){
					if(this.eventMap[i] === type){
						if(this.subscribers[i]){
							noTouch = false;
						}
					}
				}

				if(noTouch){
					this.unsubscribe(type + "-touchstart", this.touchSubscribers[type + "-touchstart"]);
					this.unsubscribe(type + "-touchend", this.touchSubscribers[type + "-touchend"]);

					delete this.touchSubscribers[type + "-touchstart"];
					delete this.touchSubscribers[type + "-touchend"];
				}
			}
		}

		initializeColumn(column){
			var def = column.definition;

			for(let key in this.eventMap){
				if(def[key]){
					this.subscriptionChanged(key, true);

					if(!this.columnSubscribers[key]){
						this.columnSubscribers[key] = [];
					}

					this.columnSubscribers[key].push(column);
				}
			}
		}

		handle(action, e, component){
			this.dispatchEvent(action, e, component);
		}

		handleTouch(type, action, e, component){
			var watchers = this.touchWatchers[type];

			if(type === "column"){
				type = "header";
			}

			switch(action){
				case "start":
					watchers.tap = true;

					clearTimeout(watchers.tapHold);

					watchers.tapHold = setTimeout(() => {
						clearTimeout(watchers.tapHold);
						watchers.tapHold = null;

						watchers.tap = null;
						clearTimeout(watchers.tapDbl);
						watchers.tapDbl = null;

						this.dispatchEvent(type + "TapHold", e,  component);
					}, 1000);
					break;

				case "end":
					if(watchers.tap){

						watchers.tap = null;
						this.dispatchEvent(type + "Tap", e,  component);
					}

					if(watchers.tapDbl){
						clearTimeout(watchers.tapDbl);
						watchers.tapDbl = null;

						this.dispatchEvent(type + "DblTap", e,  component);
					}else {
						watchers.tapDbl = setTimeout(() => {
							clearTimeout(watchers.tapDbl);
							watchers.tapDbl = null;
						}, 300);
					}

					clearTimeout(watchers.tapHold);
					watchers.tapHold = null;
					break;
			}
		}

		dispatchEvent(action, e, component){
			var componentObj = component.getComponent(),
			callback;

			if(this.columnSubscribers[action]){

				if(component instanceof Cell){
					callback = component.column.definition[action];
				}else if(component instanceof Column){
					callback = component.definition[action];
				}

				if(callback){
					callback(e, componentObj);
				}
			}

			this.dispatchExternal(action, e, componentObj);
		}
	}

	var defaultBindings = {
		navPrev:"shift + 9",
		navNext:9,
		navUp:38,
		navDown:40,
		navLeft:37,
		navRight:39,
		scrollPageUp:33,
		scrollPageDown:34,
		scrollToStart:36,
		scrollToEnd:35,
	};

	var defaultActions = {
		keyBlock:function(e){
			e.stopPropagation();
			e.preventDefault();
		},

		scrollPageUp:function(e){
			var rowManager = this.table.rowManager,
			newPos = rowManager.scrollTop - rowManager.element.clientHeight;

			e.preventDefault();

			if(rowManager.displayRowsCount){
				if(newPos >= 0){
					rowManager.element.scrollTop = newPos;
				}else {
					rowManager.scrollToRow(rowManager.getDisplayRows()[0]);
				}
			}

			this.table.element.focus();
		},

		scrollPageDown:function(e){
			var rowManager = this.table.rowManager,
			newPos = rowManager.scrollTop + rowManager.element.clientHeight,
			scrollMax = rowManager.element.scrollHeight;

			e.preventDefault();

			if(rowManager.displayRowsCount){
				if(newPos <= scrollMax){
					rowManager.element.scrollTop = newPos;
				}else {
					rowManager.scrollToRow(rowManager.getDisplayRows()[rowManager.displayRowsCount - 1]);
				}
			}

			this.table.element.focus();

		},

		scrollToStart:function(e){
			var rowManager = this.table.rowManager;

			e.preventDefault();

			if(rowManager.displayRowsCount){
				rowManager.scrollToRow(rowManager.getDisplayRows()[0]);
			}

			this.table.element.focus();
		},

		scrollToEnd:function(e){
			var rowManager = this.table.rowManager;

			e.preventDefault();

			if(rowManager.displayRowsCount){
				rowManager.scrollToRow(rowManager.getDisplayRows()[rowManager.displayRowsCount - 1]);
			}

			this.table.element.focus();
		},

		navPrev:function(e){
			this.dispatch("keybinding-nav-prev", e);
		},

		navNext:function(e){
			this.dispatch("keybinding-nav-next", e);
		},

		navLeft:function(e){
			this.dispatch("keybinding-nav-left", e);
		},

		navRight:function(e){
			this.dispatch("keybinding-nav-right", e);
		},

		navUp:function(e){
			this.dispatch("keybinding-nav-up", e);
		},

		navDown:function(e){
			this.dispatch("keybinding-nav-down", e);
		},
	};

	class Keybindings extends Module{

		static moduleName = "keybindings";

		//load defaults
		static bindings = defaultBindings;
		static actions = defaultActions;

		constructor(table){
			super(table);

			this.watchKeys = null;
			this.pressedKeys = null;
			this.keyupBinding = false;
			this.keydownBinding = false;

			this.registerTableOption("keybindings", {}); //array for keybindings
			this.registerTableOption("tabEndNewRow", false); //create new row when tab to end of table
		}

		initialize(){
			var bindings = this.table.options.keybindings,
			mergedBindings = {};

			this.watchKeys = {};
			this.pressedKeys = [];

			if(bindings !== false){
				Object.assign(mergedBindings, Keybindings.bindings);
				Object.assign(mergedBindings, bindings);

				this.mapBindings(mergedBindings);
				this.bindEvents();
			}

			this.subscribe("table-destroy", this.clearBindings.bind(this));
		}

		mapBindings(bindings){
			for(let key in bindings){
				if(Keybindings.actions[key]){
					if(bindings[key]){
						if(typeof bindings[key] !== "object"){
							bindings[key] = [bindings[key]];
						}

						bindings[key].forEach((binding) => {
							var bindingList = Array.isArray(binding) ?  binding : [binding];
							
							bindingList.forEach((item) => {
								this.mapBinding(key, item);
							});						
						});
					}
				}else {
					console.warn("Key Binding Error - no such action:", key);
				}
			}
		}

		mapBinding(action, symbolsList){
			var binding = {
				action: Keybindings.actions[action],
				keys: [],
				ctrl: false,
				shift: false,
				meta: false,
			};

			var symbols = symbolsList.toString().toLowerCase().split(" ").join("").split("+");

			symbols.forEach((symbol) => {
				switch(symbol){
					case "ctrl":
						binding.ctrl = true;
						break;

					case "shift":
						binding.shift = true;
						break;

					case "meta":
						binding.meta = true;
						break;

					default:
						symbol = isNaN(symbol) ? symbol.toUpperCase().charCodeAt(0) : parseInt(symbol);
						binding.keys.push(symbol);

						if(!this.watchKeys[symbol]){
							this.watchKeys[symbol] = [];
						}

						this.watchKeys[symbol].push(binding);
				}
			});
		}

		bindEvents(){
			var self = this;

			this.keyupBinding = function(e){
				var code = e.keyCode;
				var bindings = self.watchKeys[code];

				if(bindings){

					self.pressedKeys.push(code);

					bindings.forEach(function(binding){
						self.checkBinding(e, binding);
					});
				}
			};

			this.keydownBinding = function(e){
				var code = e.keyCode;
				var bindings = self.watchKeys[code];

				if(bindings){

					var index = self.pressedKeys.indexOf(code);

					if(index > -1){
						self.pressedKeys.splice(index, 1);
					}
				}
			};

			this.table.element.addEventListener("keydown", this.keyupBinding);

			this.table.element.addEventListener("keyup", this.keydownBinding);
		}

		clearBindings(){
			if(this.keyupBinding){
				this.table.element.removeEventListener("keydown", this.keyupBinding);
			}

			if(this.keydownBinding){
				this.table.element.removeEventListener("keyup", this.keydownBinding);
			}
		}

		checkBinding(e, binding){
			var match = true;

			if(e.ctrlKey == binding.ctrl && e.shiftKey == binding.shift && e.metaKey == binding.meta){
				binding.keys.forEach((key) => {
					var index = this.pressedKeys.indexOf(key);

					if(index == -1){
						match = false;
					}
				});

				if(match){
					binding.action.call(this, e);
				}

				return true;
			}

			return false;
		}
	}

	class Menu extends Module{

		static moduleName = "menu";
		
		constructor(table){
			super(table);
			
			this.menuContainer = null;
			this.nestedMenuBlock = false;
			
			this.currentComponent = null;
			this.rootPopup = null;
			
			this.columnSubscribers = {};
			
			// this.registerTableOption("menuContainer", undefined); //deprecated
			
			this.registerTableOption("rowContextMenu", false);
			this.registerTableOption("rowClickMenu", false);
			this.registerTableOption("rowDblClickMenu", false);
			this.registerTableOption("groupContextMenu", false);
			this.registerTableOption("groupClickMenu", false);
			this.registerTableOption("groupDblClickMenu", false);
			
			this.registerColumnOption("headerContextMenu");
			this.registerColumnOption("headerClickMenu");
			this.registerColumnOption("headerDblClickMenu");
			this.registerColumnOption("headerMenu");
			this.registerColumnOption("headerMenuIcon");
			this.registerColumnOption("contextMenu");
			this.registerColumnOption("clickMenu");
			this.registerColumnOption("dblClickMenu");
			
		}
		
		initialize(){
			this.deprecatedOptionsCheck();
			this.initializeRowWatchers();
			this.initializeGroupWatchers();
			
			this.subscribe("column-init", this.initializeColumn.bind(this));
		}
		
		deprecatedOptionsCheck(){
			// if(!this.deprecationCheck("menuContainer", "popupContainer")){
			// 	this.table.options.popupContainer = this.table.options.menuContainer;
			// }
		}	
		
		initializeRowWatchers(){
			if(this.table.options.rowContextMenu){
				this.subscribe("row-contextmenu", this.loadMenuEvent.bind(this, this.table.options.rowContextMenu));
				this.table.on("rowTapHold", this.loadMenuEvent.bind(this, this.table.options.rowContextMenu));
			}
			
			if(this.table.options.rowClickMenu){
				this.subscribe("row-click", this.loadMenuEvent.bind(this, this.table.options.rowClickMenu));
			}
			
			if(this.table.options.rowDblClickMenu){
				this.subscribe("row-dblclick", this.loadMenuEvent.bind(this, this.table.options.rowDblClickMenu));
			}
		}
		
		initializeGroupWatchers(){
			if(this.table.options.groupContextMenu){
				this.subscribe("group-contextmenu", this.loadMenuEvent.bind(this, this.table.options.groupContextMenu));
				this.table.on("groupTapHold", this.loadMenuEvent.bind(this, this.table.options.groupContextMenu));
			}
			
			if(this.table.options.groupClickMenu){
				this.subscribe("group-click", this.loadMenuEvent.bind(this, this.table.options.groupClickMenu));
			}
			
			if(this.table.options.groupDblClickMenu){
				this.subscribe("group-dblclick", this.loadMenuEvent.bind(this, this.table.options.groupDblClickMenu));
			}
		}

		initializeColumn(column){
			var	def = column.definition;
			
			//handle column events
			if(def.headerContextMenu && !this.columnSubscribers.headerContextMenu){
				this.columnSubscribers.headerContextMenu = this.loadMenuTableColumnEvent.bind(this, "headerContextMenu");
				this.subscribe("column-contextmenu", this.columnSubscribers.headerContextMenu);
				this.table.on("headerTapHold", this.loadMenuTableColumnEvent.bind(this, "headerContextMenu"));
			}
			
			if(def.headerClickMenu && !this.columnSubscribers.headerClickMenu){
				this.columnSubscribers.headerClickMenu = this.loadMenuTableColumnEvent.bind(this, "headerClickMenu");
				this.subscribe("column-click", this.columnSubscribers.headerClickMenu);
			}
			
			if(def.headerDblClickMenu && !this.columnSubscribers.headerDblClickMenu){
				this.columnSubscribers.headerDblClickMenu = this.loadMenuTableColumnEvent.bind(this, "headerDblClickMenu");
				this.subscribe("column-dblclick", this.columnSubscribers.headerDblClickMenu);
			}
			
			if(def.headerMenu){
				this.initializeColumnHeaderMenu(column);
			}
			
			//handle cell events
			if(def.contextMenu && !this.columnSubscribers.contextMenu){
				this.columnSubscribers.contextMenu = this.loadMenuTableCellEvent.bind(this, "contextMenu");
				this.subscribe("cell-contextmenu", this.columnSubscribers.contextMenu);
				this.table.on("cellTapHold", this.loadMenuTableCellEvent.bind(this, "contextMenu"));
			}
			
			if(def.clickMenu && !this.columnSubscribers.clickMenu){
				this.columnSubscribers.clickMenu = this.loadMenuTableCellEvent.bind(this, "clickMenu");
				this.subscribe("cell-click", this.columnSubscribers.clickMenu);
			}
			
			if(def.dblClickMenu && !this.columnSubscribers.dblClickMenu){
				this.columnSubscribers.dblClickMenu = this.loadMenuTableCellEvent.bind(this, "dblClickMenu");
				this.subscribe("cell-dblclick", this.columnSubscribers.dblClickMenu);
			}
		}
		
		initializeColumnHeaderMenu(column){
			var icon = column.definition.headerMenuIcon,
			headerMenuEl;
			
			headerMenuEl = document.createElement("span");
			headerMenuEl.classList.add("tabulator-header-popup-button");
			
			if(icon){
				if(typeof icon === "function"){
					icon = icon(column.getComponent());
				}
				
				if(icon instanceof HTMLElement){
					headerMenuEl.appendChild(icon);
				}else {
					headerMenuEl.innerHTML = icon;
				}
			}else {
				headerMenuEl.innerHTML = "&vellip;";
			}
			
			headerMenuEl.addEventListener("click", (e) => {
				e.stopPropagation();
				e.preventDefault();
				
				this.loadMenuEvent(column.definition.headerMenu, e, column);
			});
			
			column.titleElement.insertBefore(headerMenuEl, column.titleElement.firstChild);
		}
		
		loadMenuTableCellEvent(option, e, cell){
			if(cell._cell){
				cell = cell._cell;
			}
			
			if(cell.column.definition[option]){
				this.loadMenuEvent(cell.column.definition[option], e, cell);
			}
		}
		
		loadMenuTableColumnEvent(option, e, column){
			if(column._column){
				column = column._column;
			}
			
			if(column.definition[option]){
				this.loadMenuEvent(column.definition[option], e, column);
			}
		}
		
		loadMenuEvent(menu, e, component){
			if(component._group){
				component = component._group;
			}else if(component._row){
				component = component._row;
			}
			
			menu = typeof menu == "function" ? menu.call(this.table, e, component.getComponent()) : menu;
			
			this.loadMenu(e, component, menu);
		}
		
		loadMenu(e, component, menu, parentEl, parentPopup){
			var touch = !(e instanceof MouseEvent),		
			menuEl = document.createElement("div"),
			popup;
			
			menuEl.classList.add("tabulator-menu");
			
			if(!touch){
				e.preventDefault();
			}
			
			//abort if no menu set
			if(!menu || !menu.length){
				return;
			}
			
			if(!parentEl){
				if(this.nestedMenuBlock){
					//abort if child menu already open
					if(this.rootPopup){
						return;
					}
				}else {
					this.nestedMenuBlock = setTimeout(() => {
						this.nestedMenuBlock = false;
					}, 100);
				}
				
				if(this.rootPopup){
					this.rootPopup.hide();	
				}
				
				this.rootPopup = popup = this.popup(menuEl);
				
			}else {
				popup = parentPopup.child(menuEl);
			}
			
			menu.forEach((item) => {
				var itemEl = document.createElement("div"),
				label = item.label,
				disabled = item.disabled;
				
				if(item.separator){
					itemEl.classList.add("tabulator-menu-separator");
				}else {
					itemEl.classList.add("tabulator-menu-item");
					
					if(typeof label == "function"){
						label = label.call(this.table, component.getComponent());
					}
					
					if(label instanceof Node){
						itemEl.appendChild(label);
					}else {
						itemEl.innerHTML = label;
					}
					
					if(typeof disabled == "function"){
						disabled = disabled.call(this.table, component.getComponent());
					}
					
					if(disabled){
						itemEl.classList.add("tabulator-menu-item-disabled");
						itemEl.addEventListener("click", (e) => {
							e.stopPropagation();
						});
					}else {
						if(item.menu && item.menu.length){
							itemEl.addEventListener("click", (e) => {
								e.stopPropagation();
								this.loadMenu(e, component, item.menu, itemEl, popup);
							});
						}else {
							if(item.action){
								itemEl.addEventListener("click", (e) => {
									item.action(e, component.getComponent());
								});
							}
						}
					}
					
					if(item.menu && item.menu.length){
						itemEl.classList.add("tabulator-menu-item-submenu");
					}
				}
				
				menuEl.appendChild(itemEl);
			});
			
			menuEl.addEventListener("click", (e) => {
				if(this.rootPopup){
					this.rootPopup.hide();
				}
			});
			
			popup.show(parentEl || e);
			
			if(popup === this.rootPopup){
				this.rootPopup.hideOnBlur(() => {
					this.rootPopup = null;
					
					if(this.currentComponent){
						this.dispatch("menu-closed", menu, popup);
						this.dispatchExternal("menuClosed", this.currentComponent.getComponent());
						this.currentComponent = null;
					}
				});
				
				this.currentComponent = component;
				
				this.dispatch("menu-opened", menu, popup);
				this.dispatchExternal("menuOpened", component.getComponent());
			}
		}
	}

	class MoveColumns extends Module{

		static moduleName = "moveColumn";
		
		constructor(table){
			super(table);
			
			this.placeholderElement = this.createPlaceholderElement();
			this.hoverElement = false; //floating column header element
			this.checkTimeout = false; //click check timeout holder
			this.checkPeriod = 250; //period to wait on mousedown to consider this a move and not a click
			this.moving = false; //currently moving column
			this.toCol = false; //destination column
			this.toColAfter = false; //position of moving column relative to the destination column
			this.startX = 0; //starting position within header element
			this.autoScrollMargin = 40; //auto scroll on edge when within margin
			this.autoScrollStep = 5; //auto scroll distance in pixels
			this.autoScrollTimeout = false; //auto scroll timeout
			this.touchMove = false;
			
			this.moveHover = this.moveHover.bind(this);
			this.endMove = this.endMove.bind(this);
			
			this.registerTableOption("movableColumns", false); //enable movable columns
		}
		
		createPlaceholderElement(){
			var el = document.createElement("div");
			
			el.classList.add("tabulator-col");
			el.classList.add("tabulator-col-placeholder");
			
			return el;
		}
		
		initialize(){
			if(this.table.options.movableColumns){
				this.subscribe("column-init", this.initializeColumn.bind(this));
				this.subscribe("alert-show", this.abortMove.bind(this));
			}
		}

		abortMove(){
			clearTimeout(this.checkTimeout);
		}
		
		initializeColumn(column){
			var self = this,
			config = {},
			colEl;

			if(!column.modules.frozen && !column.isGroup && !column.isRowHeader){
				colEl = column.getElement();
				
				config.mousemove = function(e){
					if(column.parent === self.moving.parent){
						if((((self.touchMove ? e.touches[0].pageX : e.pageX) - Helpers.elOffset(colEl).left) + self.table.columnManager.contentsElement.scrollLeft) > (column.getWidth() / 2)){
							if(self.toCol !== column || !self.toColAfter){
								colEl.parentNode.insertBefore(self.placeholderElement, colEl.nextSibling);
								self.moveColumn(column, true);
							}
						}else {
							if(self.toCol !== column || self.toColAfter){
								colEl.parentNode.insertBefore(self.placeholderElement, colEl);
								self.moveColumn(column, false);
							}
						}
					}
				}.bind(self);
				
				colEl.addEventListener("mousedown", function(e){
					self.touchMove = false;
					if(e.which === 1){
						self.checkTimeout = setTimeout(function(){
							self.startMove(e, column);
						}, self.checkPeriod);
					}
				});
				
				colEl.addEventListener("mouseup", function(e){
					if(e.which === 1){
						if(self.checkTimeout){
							clearTimeout(self.checkTimeout);
						}
					}
				});
				
				self.bindTouchEvents(column);
			}
			
			column.modules.moveColumn = config;
		}
		
		bindTouchEvents(column){
			var colEl = column.getElement(),
			startXMove = false, //shifting center position of the cell
			nextCol, prevCol, nextColWidth, prevColWidth, nextColWidthLast, prevColWidthLast;
			
			colEl.addEventListener("touchstart", (e) => {
				this.checkTimeout = setTimeout(() => {
					this.touchMove = true;
					nextCol = column.nextColumn();
					nextColWidth = nextCol ? nextCol.getWidth()/2 : 0;
					prevCol = column.prevColumn();
					prevColWidth = prevCol ? prevCol.getWidth()/2 : 0;
					nextColWidthLast = 0;
					prevColWidthLast = 0;
					startXMove = false;
					
					this.startMove(e, column);
				}, this.checkPeriod);
			}, {passive: true});
			
			colEl.addEventListener("touchmove", (e) => {
				var diff, moveToCol;
				
				if(this.moving){
					this.moveHover(e);
					
					if(!startXMove){
						startXMove = e.touches[0].pageX;
					}
					
					diff = e.touches[0].pageX - startXMove;
					
					if(diff > 0){
						if(nextCol && diff - nextColWidthLast > nextColWidth){
							moveToCol = nextCol;
							
							if(moveToCol !== column){
								startXMove = e.touches[0].pageX;
								moveToCol.getElement().parentNode.insertBefore(this.placeholderElement, moveToCol.getElement().nextSibling);
								this.moveColumn(moveToCol, true);
							}
						}
					}else {
						if(prevCol && -diff - prevColWidthLast >  prevColWidth){
							moveToCol = prevCol;
							
							if(moveToCol !== column){
								startXMove = e.touches[0].pageX;
								moveToCol.getElement().parentNode.insertBefore(this.placeholderElement, moveToCol.getElement());
								this.moveColumn(moveToCol, false);
							}
						}
					}
					
					if(moveToCol){
						nextCol = moveToCol.nextColumn();
						nextColWidthLast = nextColWidth;
						nextColWidth = nextCol ? nextCol.getWidth() / 2 : 0;
						prevCol = moveToCol.prevColumn();
						prevColWidthLast = prevColWidth;
						prevColWidth = prevCol ? prevCol.getWidth() / 2 : 0;
					}
				}
			}, {passive: true});
			
			colEl.addEventListener("touchend", (e) => {
				if(this.checkTimeout){
					clearTimeout(this.checkTimeout);
				}
				if(this.moving){
					this.endMove(e);
				}
			});
		}
		
		startMove(e, column){
			var element = column.getElement(),
			headerElement = this.table.columnManager.getContentsElement(),
			headersElement = this.table.columnManager.getHeadersElement();
			
			//Prevent moving columns when range selection is active
			if(this.table.modules.selectRange && this.table.modules.selectRange.columnSelection){
				if(this.table.modules.selectRange.mousedown && this.table.modules.selectRange.selecting === "column"){
					return;
				}
			}

			this.moving = column;
			this.startX = (this.touchMove ? e.touches[0].pageX : e.pageX) - Helpers.elOffset(element).left;
			
			this.table.element.classList.add("tabulator-block-select");
			
			//create placeholder
			this.placeholderElement.style.width = column.getWidth() + "px";
			this.placeholderElement.style.height = column.getHeight() + "px";
			
			element.parentNode.insertBefore(this.placeholderElement, element);
			element.parentNode.removeChild(element);
			
			//create hover element
			this.hoverElement = element.cloneNode(true);
			this.hoverElement.classList.add("tabulator-moving");
			
			headerElement.appendChild(this.hoverElement);
			
			this.hoverElement.style.left = "0";
			this.hoverElement.style.bottom = (headerElement.clientHeight - headersElement.offsetHeight) + "px";
			
			if(!this.touchMove){
				this._bindMouseMove();
				
				document.body.addEventListener("mousemove", this.moveHover);
				document.body.addEventListener("mouseup", this.endMove);
			}
			
			this.moveHover(e);

			this.dispatch("column-moving", e, this.moving);
		}
		
		_bindMouseMove(){
			this.table.columnManager.columnsByIndex.forEach(function(column){
				if(column.modules.moveColumn.mousemove){
					column.getElement().addEventListener("mousemove", column.modules.moveColumn.mousemove);
				}
			});
		}
		
		_unbindMouseMove(){
			this.table.columnManager.columnsByIndex.forEach(function(column){
				if(column.modules.moveColumn.mousemove){
					column.getElement().removeEventListener("mousemove", column.modules.moveColumn.mousemove);
				}
			});
		}
		
		moveColumn(column, after){
			var movingCells = this.moving.getCells();
			
			this.toCol = column;
			this.toColAfter = after;
			
			if(after){
				column.getCells().forEach(function(cell, i){
					var cellEl = cell.getElement(true);
					
					if(cellEl.parentNode && movingCells[i]){
						cellEl.parentNode.insertBefore(movingCells[i].getElement(), cellEl.nextSibling);
					}
				});
			}else {
				column.getCells().forEach(function(cell, i){
					var cellEl = cell.getElement(true);
					
					if(cellEl.parentNode && movingCells[i]){
						cellEl.parentNode.insertBefore(movingCells[i].getElement(), cellEl);
					}
				});
			}
		}
		
		endMove(e){
			if(e.which === 1 || this.touchMove){
				this._unbindMouseMove();
				
				this.placeholderElement.parentNode.insertBefore(this.moving.getElement(), this.placeholderElement.nextSibling);
				this.placeholderElement.parentNode.removeChild(this.placeholderElement);
				this.hoverElement.parentNode.removeChild(this.hoverElement);
				
				this.table.element.classList.remove("tabulator-block-select");
				
				if(this.toCol){
					this.table.columnManager.moveColumnActual(this.moving, this.toCol, this.toColAfter);
				}

				this.moving = false;
				this.toCol = false;
				this.toColAfter = false;
				
				if(!this.touchMove){
					document.body.removeEventListener("mousemove", this.moveHover);
					document.body.removeEventListener("mouseup", this.endMove);
				}
			}
		}
		
		moveHover(e){
			var columnHolder = this.table.columnManager.getContentsElement(),
			scrollLeft = columnHolder.scrollLeft,
			xPos = ((this.touchMove ? e.touches[0].pageX : e.pageX) - Helpers.elOffset(columnHolder).left) + scrollLeft,
			scrollPos;
			
			this.hoverElement.style.left = (xPos - this.startX) + "px";
			
			if(xPos - scrollLeft < this.autoScrollMargin){
				if(!this.autoScrollTimeout){
					this.autoScrollTimeout = setTimeout(() => {
						scrollPos = Math.max(0,scrollLeft-5);
						this.table.rowManager.getElement().scrollLeft = scrollPos;
						this.autoScrollTimeout = false;
					}, 1);
				}
			}
			
			if(scrollLeft + columnHolder.clientWidth - xPos < this.autoScrollMargin){
				if(!this.autoScrollTimeout){
					this.autoScrollTimeout = setTimeout(() => {
						scrollPos = Math.min(columnHolder.clientWidth, scrollLeft+5);
						this.table.rowManager.getElement().scrollLeft = scrollPos;
						this.autoScrollTimeout = false;
					}, 1);
				}
			}
		}
	}

	var defaultSenders = {
		delete:function(fromRow, toRow, toTable){
			fromRow.delete();
		}
	};

	var defaultReceivers = {
		insert:function(fromRow, toRow, fromTable){
			this.table.addRow(fromRow.getData(), undefined, toRow);
			return true;
		},

		add:function(fromRow, toRow, fromTable){
			this.table.addRow(fromRow.getData());
			return true;
		},

		update:function(fromRow, toRow, fromTable){
			if(toRow){
				toRow.update(fromRow.getData());
				return true;
			}

			return false;
		},

		replace:function(fromRow, toRow, fromTable){
			if(toRow){
				this.table.addRow(fromRow.getData(), undefined, toRow);
				toRow.delete();
				return true;
			}

			return false;
		},
	};

	class MoveRows extends Module{

		static moduleName = "moveRow";

		//load defaults
		static senders = defaultSenders;
		static receivers = defaultReceivers;

		constructor(table){
			super(table);

			this.placeholderElement = this.createPlaceholderElement();
			this.hoverElement = false; //floating row header element
			this.checkTimeout = false; //click check timeout holder
			this.checkPeriod = 150; //period to wait on mousedown to consider this a move and not a click
			this.moving = false; //currently moving row
			this.toRow = false; //destination row
			this.toRowAfter = false; //position of moving row relative to the destination row
			this.hasHandle = false; //row has handle instead of fully movable row
			this.startY = 0; //starting Y position within header element
			this.startX = 0; //starting X position within header element

			this.moveHover = this.moveHover.bind(this);
			this.endMove = this.endMove.bind(this);
			this.tableRowDropEvent = false;

			this.touchMove = false;

			this.connection = false;
			this.connectionSelectorsTables = false;
			this.connectionSelectorsElements = false;
			this.connectionElements = [];
			this.connections = [];

			this.connectedTable = false;
			this.connectedRow = false;

			this.registerTableOption("movableRows", false); //enable movable rows
			this.registerTableOption("movableRowsConnectedTables", false); //tables for movable rows to be connected to
			this.registerTableOption("movableRowsConnectedElements", false); //other elements for movable rows to be connected to
			this.registerTableOption("movableRowsSender", false);
			this.registerTableOption("movableRowsReceiver", "insert");

			this.registerColumnOption("rowHandle");
		}

		createPlaceholderElement(){
			var el = document.createElement("div");

			el.classList.add("tabulator-row");
			el.classList.add("tabulator-row-placeholder");

			return el;
		}

		initialize(){
			if(this.table.options.movableRows){
				this.connectionSelectorsTables = this.table.options.movableRowsConnectedTables;
				this.connectionSelectorsElements = this.table.options.movableRowsConnectedElements;

				this.connection = this.connectionSelectorsTables || this.connectionSelectorsElements;

				this.subscribe("cell-init", this.initializeCell.bind(this));
				this.subscribe("column-init", this.initializeColumn.bind(this));
				this.subscribe("row-init", this.initializeRow.bind(this));
			}
		}

		initializeGroupHeader(group){
			var self = this,
			config = {};

			//inter table drag drop
			config.mouseup = function(e){
				self.tableRowDrop(e, group);
			}.bind(self);

			//same table drag drop
			config.mousemove = function(e){
				var rowEl;

				if(((e.pageY - Helpers.elOffset(group.element).top) + self.table.rowManager.element.scrollTop) > (group.getHeight() / 2)){
					if(self.toRow !== group || !self.toRowAfter){
						rowEl = group.getElement();
						rowEl.parentNode.insertBefore(self.placeholderElement, rowEl.nextSibling);
						self.moveRow(group, true);
					}
				}else {
					if(self.toRow !== group || self.toRowAfter){
						rowEl = group.getElement();
						if(rowEl.previousSibling){
							rowEl.parentNode.insertBefore(self.placeholderElement, rowEl);
							self.moveRow(group, false);
						}
					}
				}
			}.bind(self);

			group.modules.moveRow = config;
		}

		initializeRow(row){
			var self = this,
			config = {},
			rowEl;

			//inter table drag drop
			config.mouseup = function(e){
				self.tableRowDrop(e, row);
			}.bind(self);

			//same table drag drop
			config.mousemove = function(e){
				var rowEl = row.getElement();

				if(((e.pageY - Helpers.elOffset(rowEl).top) + self.table.rowManager.element.scrollTop) > (row.getHeight() / 2)){
					if(self.toRow !== row || !self.toRowAfter){
						rowEl.parentNode.insertBefore(self.placeholderElement, rowEl.nextSibling);
						self.moveRow(row, true);
					}
				}else {
					if(self.toRow !== row || self.toRowAfter){
						rowEl.parentNode.insertBefore(self.placeholderElement, rowEl);
						self.moveRow(row, false);
					}
				}
			}.bind(self);


			if(!this.hasHandle){

				rowEl = row.getElement();

				rowEl.addEventListener("mousedown", function(e){
					if(e.which === 1){
						self.checkTimeout = setTimeout(function(){
							self.startMove(e, row);
						}, self.checkPeriod);
					}
				});

				rowEl.addEventListener("mouseup", function(e){
					if(e.which === 1){
						if(self.checkTimeout){
							clearTimeout(self.checkTimeout);
						}
					}
				});

				this.bindTouchEvents(row, row.getElement());
			}

			row.modules.moveRow = config;
		}

		initializeColumn(column){
			if(column.definition.rowHandle && this.table.options.movableRows !== false){
				this.hasHandle = true;
			}
		}

		initializeCell(cell){
			if(cell.column.definition.rowHandle && this.table.options.movableRows !== false){
				var self = this,
				cellEl = cell.getElement(true);

				cellEl.addEventListener("mousedown", function(e){
					if(e.which === 1){
						self.checkTimeout = setTimeout(function(){
							self.startMove(e, cell.row);
						}, self.checkPeriod);
					}
				});

				cellEl.addEventListener("mouseup", function(e){
					if(e.which === 1){
						if(self.checkTimeout){
							clearTimeout(self.checkTimeout);
						}
					}
				});

				this.bindTouchEvents(cell.row, cellEl);
			}
		}

		bindTouchEvents(row, element){
			var startYMove = false, //shifting center position of the cell
			nextRow, prevRow, nextRowHeight, prevRowHeight, nextRowHeightLast, prevRowHeightLast;

			element.addEventListener("touchstart", (e) => {
				this.checkTimeout = setTimeout(() => {
					this.touchMove = true;
					nextRow = row.nextRow();
					nextRowHeight = nextRow ? nextRow.getHeight()/2 : 0;
					prevRow = row.prevRow();
					prevRowHeight = prevRow ? prevRow.getHeight()/2 : 0;
					nextRowHeightLast = 0;
					prevRowHeightLast = 0;
					startYMove = false;

					this.startMove(e, row);
				}, this.checkPeriod);
			}, {passive: true});
			this.moving, this.toRow, this.toRowAfter;
			element.addEventListener("touchmove", (e) => {

				var diff, moveToRow;

				if(this.moving){
					e.preventDefault();

					this.moveHover(e);

					if(!startYMove){
						startYMove = e.touches[0].pageY;
					}

					diff = e.touches[0].pageY - startYMove;

					if(diff > 0){
						if(nextRow && diff - nextRowHeightLast > nextRowHeight){
							moveToRow = nextRow;

							if(moveToRow !== row){
								startYMove = e.touches[0].pageY;
								moveToRow.getElement().parentNode.insertBefore(this.placeholderElement, moveToRow.getElement().nextSibling);
								this.moveRow(moveToRow, true);
							}
						}
					}else {
						if(prevRow && -diff - prevRowHeightLast >  prevRowHeight){
							moveToRow = prevRow;

							if(moveToRow !== row){
								startYMove = e.touches[0].pageY;
								moveToRow.getElement().parentNode.insertBefore(this.placeholderElement, moveToRow.getElement());
								this.moveRow(moveToRow, false);
							}
						}
					}

					if(moveToRow){
						nextRow = moveToRow.nextRow();
						nextRowHeightLast = nextRowHeight;
						nextRowHeight = nextRow ? nextRow.getHeight() / 2 : 0;
						prevRow = moveToRow.prevRow();
						prevRowHeightLast = prevRowHeight;
						prevRowHeight = prevRow ? prevRow.getHeight() / 2 : 0;
					}
				}
			});

			element.addEventListener("touchend", (e) => {
				if(this.checkTimeout){
					clearTimeout(this.checkTimeout);
				}
				if(this.moving){
					this.endMove(e);
					this.touchMove = false;
				}
			});
		}

		_bindMouseMove(){
			this.table.rowManager.getDisplayRows().forEach((row) => {
				if((row.type === "row" || row.type === "group") && row.modules.moveRow && row.modules.moveRow.mousemove){
					row.getElement().addEventListener("mousemove", row.modules.moveRow.mousemove);
				}
			});
		}

		_unbindMouseMove(){
			this.table.rowManager.getDisplayRows().forEach((row) => {
				if((row.type === "row" || row.type === "group") && row.modules.moveRow && row.modules.moveRow.mousemove){
					row.getElement().removeEventListener("mousemove", row.modules.moveRow.mousemove);
				}
			});
		}

		startMove(e, row){
			var element = row.getElement();

			this.setStartPosition(e, row);

			this.moving = row;

			this.table.element.classList.add("tabulator-block-select");

			//create placeholder
			this.placeholderElement.style.width = row.getWidth() + "px";
			this.placeholderElement.style.height = row.getHeight() + "px";

			if(!this.connection){
				element.parentNode.insertBefore(this.placeholderElement, element);
				element.parentNode.removeChild(element);
			}else {
				this.table.element.classList.add("tabulator-movingrow-sending");
				this.connectToTables(row);
			}

			//create hover element
			this.hoverElement = element.cloneNode(true);
			this.hoverElement.classList.add("tabulator-moving");

			if(this.connection){
				document.body.appendChild(this.hoverElement);
				this.hoverElement.style.left = "0";
				this.hoverElement.style.top = "0";
				this.hoverElement.style.width = this.table.element.clientWidth + "px";
				this.hoverElement.style.whiteSpace = "nowrap";
				this.hoverElement.style.overflow = "hidden";
				this.hoverElement.style.pointerEvents = "none";
			}else {
				this.table.rowManager.getTableElement().appendChild(this.hoverElement);

				this.hoverElement.style.left = "0";
				this.hoverElement.style.top = "0";

				this._bindMouseMove();
			}

			document.body.addEventListener("mousemove", this.moveHover);
			document.body.addEventListener("mouseup", this.endMove);

			this.dispatchExternal("rowMoving", row.getComponent());

			this.moveHover(e);
		}

		setStartPosition(e, row){
			var pageX = this.touchMove ? e.touches[0].pageX : e.pageX,
			pageY = this.touchMove ? e.touches[0].pageY : e.pageY,
			element, position;

			element = row.getElement();
			if(this.connection){
				position = element.getBoundingClientRect();

				this.startX = position.left - pageX + window.pageXOffset;
				this.startY = position.top - pageY + window.pageYOffset;
			}else {
				this.startY = (pageY - element.getBoundingClientRect().top);
			}
		}

		endMove(e){
			if(!e || e.which === 1 || this.touchMove){
				this._unbindMouseMove();

				if(!this.connection){
					this.placeholderElement.parentNode.insertBefore(this.moving.getElement(), this.placeholderElement.nextSibling);
					this.placeholderElement.parentNode.removeChild(this.placeholderElement);
				}

				this.hoverElement.parentNode.removeChild(this.hoverElement);

				this.table.element.classList.remove("tabulator-block-select");

				if(this.toRow){
					this.table.rowManager.moveRow(this.moving, this.toRow, this.toRowAfter);
				}else {
					this.dispatchExternal("rowMoveCancelled", this.moving.getComponent());
				}

				this.moving = false;
				this.toRow = false;
				this.toRowAfter = false;

				document.body.removeEventListener("mousemove", this.moveHover);
				document.body.removeEventListener("mouseup", this.endMove);

				if(this.connection){
					this.table.element.classList.remove("tabulator-movingrow-sending");
					this.disconnectFromTables();
				}
			}
		}

		moveRow(row, after){
			this.toRow = row;
			this.toRowAfter = after;
		}

		moveHover(e){
			if(this.connection){
				this.moveHoverConnections.call(this, e);
			}else {
				this.moveHoverTable.call(this, e);
			}
		}

		moveHoverTable(e){
			var rowHolder = this.table.rowManager.getElement(),
			scrollTop = rowHolder.scrollTop,
			yPos = ((this.touchMove ? e.touches[0].pageY : e.pageY) - rowHolder.getBoundingClientRect().top) + scrollTop;
			
			this.hoverElement.style.top = Math.min(yPos - this.startY, this.table.rowManager.element.scrollHeight - this.hoverElement.offsetHeight) + "px";
		}

		moveHoverConnections(e){
			this.hoverElement.style.left = (this.startX + (this.touchMove ? e.touches[0].pageX : e.pageX)) + "px";
			this.hoverElement.style.top = (this.startY + (this.touchMove ? e.touches[0].pageY : e.pageY)) + "px";
		}

		elementRowDrop(e, element, row){
			this.dispatchExternal("movableRowsElementDrop", e, element, row ? row.getComponent() : false);
		}

		//establish connection with other tables
		connectToTables(row){
			var connectionTables;

			if(this.connectionSelectorsTables){
				connectionTables = this.commsConnections(this.connectionSelectorsTables);

				this.dispatchExternal("movableRowsSendingStart", connectionTables);

				this.commsSend(this.connectionSelectorsTables, "moveRow", "connect", {
					row:row,
				});
			}

			if(this.connectionSelectorsElements){

				this.connectionElements = [];

				if(!Array.isArray(this.connectionSelectorsElements)){
					this.connectionSelectorsElements = [this.connectionSelectorsElements];
				}

				this.connectionSelectorsElements.forEach((query) => {
					if(typeof query === "string"){
						this.connectionElements = this.connectionElements.concat(Array.prototype.slice.call(document.querySelectorAll(query)));
					}else {
						this.connectionElements.push(query);
					}
				});

				this.connectionElements.forEach((element) => {
					var dropEvent = (e) => {
						this.elementRowDrop(e, element, this.moving);
					};

					element.addEventListener("mouseup", dropEvent);
					element.tabulatorElementDropEvent = dropEvent;

					element.classList.add("tabulator-movingrow-receiving");
				});
			}
		}

		//disconnect from other tables
		disconnectFromTables(){
			var connectionTables;

			if(this.connectionSelectorsTables){
				connectionTables = this.commsConnections(this.connectionSelectorsTables);

				this.dispatchExternal("movableRowsSendingStop", connectionTables);

				this.commsSend(this.connectionSelectorsTables, "moveRow", "disconnect");
			}

			this.connectionElements.forEach((element) => {
				element.classList.remove("tabulator-movingrow-receiving");
				element.removeEventListener("mouseup", element.tabulatorElementDropEvent);
				delete element.tabulatorElementDropEvent;
			});
		}

		//accept incomming connection
		connect(table, row){
			if(!this.connectedTable){
				this.connectedTable = table;
				this.connectedRow = row;

				this.table.element.classList.add("tabulator-movingrow-receiving");

				this.table.rowManager.getDisplayRows().forEach((row) => {
					if(row.type === "row" && row.modules.moveRow && row.modules.moveRow.mouseup){
						row.getElement().addEventListener("mouseup", row.modules.moveRow.mouseup);
					}
				});

				this.tableRowDropEvent = this.tableRowDrop.bind(this);

				this.table.element.addEventListener("mouseup", this.tableRowDropEvent);

				this.dispatchExternal("movableRowsReceivingStart", row, table);

				return true;
			}else {
				console.warn("Move Row Error - Table cannot accept connection, already connected to table:", this.connectedTable);
				return false;
			}
		}

		//close incoming connection
		disconnect(table){
			if(table === this.connectedTable){
				this.connectedTable = false;
				this.connectedRow = false;

				this.table.element.classList.remove("tabulator-movingrow-receiving");

				this.table.rowManager.getDisplayRows().forEach((row) =>{
					if(row.type === "row" && row.modules.moveRow && row.modules.moveRow.mouseup){
						row.getElement().removeEventListener("mouseup", row.modules.moveRow.mouseup);
					}
				});

				this.table.element.removeEventListener("mouseup", this.tableRowDropEvent);

				this.dispatchExternal("movableRowsReceivingStop", table);
			}else {
				console.warn("Move Row Error - trying to disconnect from non connected table");
			}
		}

		dropComplete(table, row, success){
			var sender = false;

			if(success){

				switch(typeof this.table.options.movableRowsSender){
					case "string":
						sender = MoveRows.senders[this.table.options.movableRowsSender];
						break;

					case "function":
						sender = this.table.options.movableRowsSender;
						break;
				}

				if(sender){
					sender.call(this, this.moving ? this.moving.getComponent() : undefined, row ? row.getComponent() : undefined, table);
				}else {
					if(this.table.options.movableRowsSender){
						console.warn("Mover Row Error - no matching sender found:", this.table.options.movableRowsSender);
					}
				}

				this.dispatchExternal("movableRowsSent", this.moving.getComponent(), row ? row.getComponent() : undefined, table);
			}else {
				this.dispatchExternal("movableRowsSentFailed", this.moving.getComponent(), row ? row.getComponent() : undefined, table);
			}

			this.endMove();
		}

		tableRowDrop(e, row){
			var receiver = false,
			success = false;

			e.stopImmediatePropagation();

			switch(typeof this.table.options.movableRowsReceiver){
				case "string":
					receiver = MoveRows.receivers[this.table.options.movableRowsReceiver];
					break;

				case "function":
					receiver = this.table.options.movableRowsReceiver;
					break;
			}

			if(receiver){
				success = receiver.call(this, this.connectedRow.getComponent(), row ? row.getComponent() : undefined, this.connectedTable);
			}else {
				console.warn("Mover Row Error - no matching receiver found:", this.table.options.movableRowsReceiver);
			}

			if(success){
				this.dispatchExternal("movableRowsReceived", this.connectedRow.getComponent(), row ? row.getComponent() : undefined, this.connectedTable);
			}else {
				this.dispatchExternal("movableRowsReceivedFailed", this.connectedRow.getComponent(), row ? row.getComponent() : undefined, this.connectedTable);
			}

			this.commsSend(this.connectedTable, "moveRow", "dropcomplete", {
				row:row,
				success:success,
			});
		}

		commsReceived(table, action, data){
			switch(action){
				case "connect":
					return this.connect(table, data.row);

				case "disconnect":
					return this.disconnect(table);

				case "dropcomplete":
					return this.dropComplete(table, data.row, data.success);
			}
		}
	}

	var defaultMutators = {};

	class Mutator extends Module{

		static moduleName = "mutator";

		//load defaults
		static mutators = defaultMutators;

		constructor(table){
			super(table);

			this.allowedTypes = ["", "data", "edit", "clipboard", "import"]; //list of mutation types
			this.enabled = true;

			this.registerColumnOption("mutator");
			this.registerColumnOption("mutatorParams");
			this.registerColumnOption("mutatorData");
			this.registerColumnOption("mutatorDataParams");
			this.registerColumnOption("mutatorEdit");
			this.registerColumnOption("mutatorEditParams");
			this.registerColumnOption("mutatorClipboard");
			this.registerColumnOption("mutatorClipboardParams");
			this.registerColumnOption("mutatorImport");
			this.registerColumnOption("mutatorImportParams");
			this.registerColumnOption("mutateLink");
		}

		initialize(){
			this.subscribe("cell-value-changing", this.transformCell.bind(this));
			this.subscribe("cell-value-changed", this.mutateLink.bind(this));
			this.subscribe("column-layout", this.initializeColumn.bind(this));
			this.subscribe("row-data-init-before", this.rowDataChanged.bind(this));
			this.subscribe("row-data-changing", this.rowDataChanged.bind(this));
		}

		rowDataChanged(row, tempData, updatedData){
			return this.transformRow(tempData, "data", updatedData);
		}

		//initialize column mutator
		initializeColumn(column){
			var match = false,
			config = {};

			this.allowedTypes.forEach((type) => {
				var key = "mutator" + (type.charAt(0).toUpperCase() + type.slice(1)),
				mutator;

				if(column.definition[key]){
					mutator = this.lookupMutator(column.definition[key]);

					if(mutator){
						match = true;

						config[key] = {
							mutator:mutator,
							params: column.definition[key + "Params"] || {},
						};
					}
				}
			});

			if(match){
				column.modules.mutate = config;
			}
		}

		lookupMutator(value){
			var mutator = false;

			//set column mutator
			switch(typeof value){
				case "string":
					if(Mutator.mutators[value]){
						mutator = Mutator.mutators[value];
					}else {
						console.warn("Mutator Error - No such mutator found, ignoring: ", value);
					}
					break;

				case "function":
					mutator = value;
					break;
			}

			return mutator;
		}

		//apply mutator to row
		transformRow(data, type, updatedData){
			var key = "mutator" + (type.charAt(0).toUpperCase() + type.slice(1)),
			value;

			// console.log("key", key)

			if(this.enabled){

				this.table.columnManager.traverse((column) => {
					var mutator, params, component;

					if(column.modules.mutate){
						mutator = column.modules.mutate[key] || column.modules.mutate.mutator || false;

						if(mutator){
							value = column.getFieldValue(typeof updatedData !== "undefined" ? updatedData : data);

							if((type == "data" && !updatedData)|| typeof value !== "undefined"){
								component = column.getComponent();
								params = typeof mutator.params === "function" ? mutator.params(value, data, type, component) : mutator.params;
								column.setFieldValue(data, mutator.mutator(value, data, type, params, component));
							}
						}
					}
				});
			}

			return data;
		}

		//apply mutator to new cell value
		transformCell(cell, value){
			if(cell.column.modules.mutate){
				var mutator = cell.column.modules.mutate.mutatorEdit || cell.column.modules.mutate.mutator || false,
				tempData = {};

				if(mutator){
					tempData = Object.assign(tempData, cell.row.getData());
					cell.column.setFieldValue(tempData, value);
					return mutator.mutator(value, tempData, "edit", mutator.params, cell.getComponent());
				}
			}

			return value;
		}

		mutateLink(cell){
			var links = cell.column.definition.mutateLink;

			if(links){
				if(!Array.isArray(links)){
					links = [links];
				}

				links.forEach((link) => {
					var linkCell = cell.row.getCell(link);

					if(linkCell){
						linkCell.setValue(linkCell.getValue(), true, true);
					}
				});
			}
		}

		enable(){
			this.enabled = true;
		}

		disable(){
			this.enabled = false;
		}
	}

	function rows(pageSize, currentRow, currentPage, totalRows, totalPages){
		var el = document.createElement("span"),
		showingEl = document.createElement("span"),
		valueEl = document.createElement("span"),
		ofEl = document.createElement("span"),
		totalEl = document.createElement("span"),
		rowsEl = document.createElement("span");

		this.table.modules.localize.langBind("pagination|counter|showing", (value) => {
			showingEl.innerHTML = value;
		});

		this.table.modules.localize.langBind("pagination|counter|of", (value) => {
			ofEl.innerHTML = value;
		});

		this.table.modules.localize.langBind("pagination|counter|rows", (value) => {
			rowsEl.innerHTML = value;
		});

		if(totalRows){
			valueEl.innerHTML = " " + currentRow + "-" + Math.min((currentRow + pageSize - 1), totalRows) + " ";
			
			totalEl.innerHTML = " " + totalRows + " ";
			
			el.appendChild(showingEl);
			el.appendChild(valueEl);
			el.appendChild(ofEl);
			el.appendChild(totalEl);
			el.appendChild(rowsEl);
		}else {
			valueEl.innerHTML = " 0 ";

			el.appendChild(showingEl);
			el.appendChild(valueEl);
			el.appendChild(rowsEl);
		}
		
		return el;
	}

	function pages(pageSize, currentRow, currentPage, totalRows, totalPages){

		var el = document.createElement("span"),
		showingEl = document.createElement("span"),
		valueEl = document.createElement("span"),
		ofEl = document.createElement("span"),
		totalEl = document.createElement("span"),
		rowsEl = document.createElement("span");
		
		this.table.modules.localize.langBind("pagination|counter|showing", (value) => {
			showingEl.innerHTML = value;
		});
		
		valueEl.innerHTML = " " + currentPage + " ";
		
		this.table.modules.localize.langBind("pagination|counter|of", (value) => {
			ofEl.innerHTML = value;
		});
		
		totalEl.innerHTML = " " + totalPages + " ";
		
		this.table.modules.localize.langBind("pagination|counter|pages", (value) => {
			rowsEl.innerHTML = value;
		});
		
		el.appendChild(showingEl);
		el.appendChild(valueEl);
		el.appendChild(ofEl);
		el.appendChild(totalEl);
		el.appendChild(rowsEl);
		
		return el;
	}

	var defaultPageCounters = {
		rows:rows,
		pages:pages,
	};

	class Page extends Module{

		static moduleName = "page";

		//load defaults
		static pageCounters = defaultPageCounters;
		
		constructor(table){
			super(table);
			
			this.mode = "local";
			this.progressiveLoad = false;
			
			this.element = null;
			this.pageCounterElement = null;
			this.pageCounter = null;
			
			this.size = 0;
			this.page = 1;
			this.count = 5;
			this.max = 1;

			this.remoteRowCountEstimate = null;
			
			this.initialLoad = true;
			this.dataChanging = false; //flag to check if data is being changed by this module
			
			this.pageSizes = [];
			
			this.registerTableOption("pagination", false); //set pagination type
			this.registerTableOption("paginationMode", "local"); //local or remote pagination
			this.registerTableOption("paginationSize", false); //set number of rows to a page
			this.registerTableOption("paginationInitialPage", 1); //initial page to show on load
			this.registerTableOption("paginationCounter", false);  // set pagination counter
			this.registerTableOption("paginationCounterElement", false);  // set pagination counter
			this.registerTableOption("paginationButtonCount", 5);  // set count of page button
			this.registerTableOption("paginationSizeSelector", false); //add pagination size selector element
			this.registerTableOption("paginationElement", false); //element to hold pagination numbers
			// this.registerTableOption("paginationDataSent", {}); //pagination data sent to the server
			// this.registerTableOption("paginationDataReceived", {}); //pagination data received from the server
			this.registerTableOption("paginationAddRow", "page"); //add rows on table or page
			this.registerTableOption("paginationOutOfRange", false); //reset the current page when the last page < this.page, values: false|function|any value accepted by setPage()
			
			this.registerTableOption("progressiveLoad", false); //progressive loading
			this.registerTableOption("progressiveLoadDelay", 0); //delay between requests
			this.registerTableOption("progressiveLoadScrollMargin", 0); //margin before scroll begins
			
			this.registerTableFunction("setMaxPage", this.setMaxPage.bind(this));
			this.registerTableFunction("setPage", this.setPage.bind(this));
			this.registerTableFunction("setPageToRow", this.userSetPageToRow.bind(this));
			this.registerTableFunction("setPageSize", this.userSetPageSize.bind(this));
			this.registerTableFunction("getPageSize", this.getPageSize.bind(this));
			this.registerTableFunction("previousPage", this.previousPage.bind(this));
			this.registerTableFunction("nextPage", this.nextPage.bind(this));
			this.registerTableFunction("getPage", this.getPage.bind(this));
			this.registerTableFunction("getPageMax", this.getPageMax.bind(this));
			
			//register component functions
			this.registerComponentFunction("row", "pageTo", this.setPageToRow.bind(this));
		}
		
		initialize(){
			if(this.table.options.pagination){
				this.subscribe("row-deleted", this.rowsUpdated.bind(this));
				this.subscribe("row-added", this.rowsUpdated.bind(this));
				this.subscribe("data-processed", this.initialLoadComplete.bind(this));
				this.subscribe("table-built", this.calculatePageSizes.bind(this));
				this.subscribe("footer-redraw", this.footerRedraw.bind(this));

				if(this.table.options.paginationAddRow == "page"){
					this.subscribe("row-adding-position", this.rowAddingPosition.bind(this));
				}
				
				if(this.table.options.paginationMode === "remote"){
					this.subscribe("data-params", this.remotePageParams.bind(this));
					this.subscribe("data-loaded", this._parseRemoteData.bind(this));
				}
				
				if(this.table.options.progressiveLoad){
					console.error("Progressive Load Error - Pagination and progressive load cannot be used at the same time");
				}
				
				this.registerDisplayHandler(this.restOnRenderBefore.bind(this), 40);
				this.registerDisplayHandler(this.getRows.bind(this), 50);
				
				this.createElements();
				this.initializePageCounter();
				this.initializePaginator();
			}else if(this.table.options.progressiveLoad){
				this.subscribe("data-params", this.remotePageParams.bind(this));
				this.subscribe("data-loaded", this._parseRemoteData.bind(this));
				this.subscribe("table-built", this.calculatePageSizes.bind(this));
				this.subscribe("data-processed", this.initialLoadComplete.bind(this));
				
				this.initializeProgressive(this.table.options.progressiveLoad);
				
				if(this.table.options.progressiveLoad === "scroll"){
					this.subscribe("scroll-vertical", this.scrollVertical.bind(this));
				}
			}
		}
		
		rowAddingPosition(row, top){
			var rowManager = this.table.rowManager,
			displayRows = rowManager.getDisplayRows(),
			index;
			
			if(top){
				if(displayRows.length){
					index = displayRows[0];
				}else {
					if(rowManager.activeRows.length){
						index = rowManager.activeRows[rowManager.activeRows.length-1];
						top = false;
					}
				}
			}else {
				if(displayRows.length){
					index = displayRows[displayRows.length - 1];
					top = displayRows.length < this.size ? false : true;
				}
			}
			
			return {index, top};
		}
		
		calculatePageSizes(){
			var testElRow, testElCell;
			
			if(this.table.options.paginationSize){
				this.size = this.table.options.paginationSize;
			}else {
				testElRow = document.createElement("div");
				testElRow.classList.add("tabulator-row");
				testElRow.style.visibility = "hidden";
				
				testElCell = document.createElement("div");
				testElCell.classList.add("tabulator-cell");
				testElCell.innerHTML = "Page Row Test";
				
				testElRow.appendChild(testElCell);
				
				this.table.rowManager.getTableElement().appendChild(testElRow);
				
				this.size = Math.floor(this.table.rowManager.getElement().clientHeight / testElRow.offsetHeight);
				
				this.table.rowManager.getTableElement().removeChild(testElRow);
			}

			this.dispatchExternal("pageSizeChanged", this.size);
			
			this.generatePageSizeSelectList();
		}
		
		initialLoadComplete(){
			this.initialLoad = false;
		}
		
		remotePageParams(data, config, silent, params){
			if(!this.initialLoad){
				if((this.progressiveLoad && !silent) || (!this.progressiveLoad && !this.dataChanging)){
					this.reset(true);
				}
			}
			
			//configure request params
			params.page = this.page;
			
			//set page size if defined
			if(this.size){
				params.size = this.size;
			}
			
			return params;
		}
		
		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////
		
		userSetPageToRow(row){
			if(this.table.options.pagination){
				row = this.table.rowManager.findRow(row);
				
				if(row){
					return this.setPageToRow(row);
				}
			}
			
			return Promise.reject();
		}
		
		userSetPageSize(size){
			if(this.table.options.pagination){
				this.setPageSize(size);
				return this.setPage(1);
			}else {
				return false;
			}
		}
		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////
		
		scrollVertical(top, dir){
			var element, diff, margin;
			if(!dir && !this.table.dataLoader.loading){
				element = this.table.rowManager.getElement();
				diff = element.scrollHeight - element.clientHeight - top;
				margin = this.table.options.progressiveLoadScrollMargin || (element.clientHeight * 2);
				
				if(diff < margin){
					this.nextPage()
						.catch(() => {}); //consume the exception thrown when on the last page
				}
			}
		}
		
		restOnRenderBefore(rows, renderInPosition){
			if(!renderInPosition){
				if(this.mode === "local"){
					this.reset();
				}
			}
			
			return rows;
		}
		
		rowsUpdated(){
			this.refreshData(true, "all");
		}
		
		createElements(){
			var button;
			
			this.element = document.createElement("span");
			this.element.classList.add("tabulator-paginator");
			
			this.pagesElement = document.createElement("span");
			this.pagesElement.classList.add("tabulator-pages");
			
			button = document.createElement("button");
			button.classList.add("tabulator-page");
			button.setAttribute("type", "button");
			button.setAttribute("role", "button");
			button.setAttribute("aria-label", "");
			button.setAttribute("title", "");
			
			this.firstBut = button.cloneNode(true);
			this.firstBut.setAttribute("data-page", "first");
			
			this.prevBut = button.cloneNode(true);
			this.prevBut.setAttribute("data-page", "prev");
			
			this.nextBut = button.cloneNode(true);
			this.nextBut.setAttribute("data-page", "next");
			
			this.lastBut = button.cloneNode(true);
			this.lastBut.setAttribute("data-page", "last");
			
			if(this.table.options.paginationSizeSelector){
				this.pageSizeSelect = document.createElement("select");
				this.pageSizeSelect.classList.add("tabulator-page-size");
			}
		}
		
		generatePageSizeSelectList(){
			var pageSizes = [];
			
			if(this.pageSizeSelect){
				
				if(Array.isArray(this.table.options.paginationSizeSelector)){
					pageSizes = this.table.options.paginationSizeSelector;
					this.pageSizes = pageSizes;
					
					if(this.pageSizes.indexOf(this.size) == -1){
						pageSizes.unshift(this.size);
					}
				}else {
					
					if(this.pageSizes.indexOf(this.size) == -1){
						pageSizes = [];
						
						for (let i = 1; i < 5; i++){
							pageSizes.push(this.size * i);
						}
						
						this.pageSizes = pageSizes;
					}else {
						pageSizes = this.pageSizes;
					}
				}
				
				while(this.pageSizeSelect.firstChild) this.pageSizeSelect.removeChild(this.pageSizeSelect.firstChild);
				
				pageSizes.forEach((item) => {
					var itemEl = document.createElement("option");
					itemEl.value = item;
					
					if(item === true){
						this.langBind("pagination|all", function(value){
							itemEl.innerHTML = value;
						});
					}else {
						itemEl.innerHTML = item;
					}
					
					
					
					this.pageSizeSelect.appendChild(itemEl);
				});
				
				this.pageSizeSelect.value = this.size;
			}
		}
		
		initializePageCounter(){
			var counter = this.table.options.paginationCounter,
			pageCounter = null;
			
			if(counter){
				if(typeof counter === "function"){
					pageCounter = counter;
				}else {
					pageCounter = Page.pageCounters[counter];
				}
				
				if(pageCounter){
					this.pageCounter = pageCounter;
					
					this.pageCounterElement = document.createElement("span");
					this.pageCounterElement.classList.add("tabulator-page-counter");
				}else {
					console.warn("Pagination Error - No such page counter found: ", counter);
				}
			}
		}
		
		//setup pagination
		initializePaginator(hidden){
			var pageSelectLabel, paginationCounterHolder;
			
			if(!hidden){
				//build pagination element
				
				//bind localizations
				this.langBind("pagination|first", (value) => {
					this.firstBut.innerHTML = value;
				});
				
				this.langBind("pagination|first_title", (value) => {
					this.firstBut.setAttribute("aria-label", value);
					this.firstBut.setAttribute("title", value);
				});
				
				this.langBind("pagination|prev", (value) => {
					this.prevBut.innerHTML = value;
				});
				
				this.langBind("pagination|prev_title", (value) => {
					this.prevBut.setAttribute("aria-label", value);
					this.prevBut.setAttribute("title", value);
				});
				
				this.langBind("pagination|next", (value) => {
					this.nextBut.innerHTML = value;
				});
				
				this.langBind("pagination|next_title", (value) => {
					this.nextBut.setAttribute("aria-label", value);
					this.nextBut.setAttribute("title", value);
				});
				
				this.langBind("pagination|last", (value) => {
					this.lastBut.innerHTML = value;
				});
				
				this.langBind("pagination|last_title", (value) => {
					this.lastBut.setAttribute("aria-label", value);
					this.lastBut.setAttribute("title", value);
				});
				
				//click bindings
				this.firstBut.addEventListener("click", () => {
					this.setPage(1);
				});
				
				this.prevBut.addEventListener("click", () => {
					this.previousPage();
				});
				
				this.nextBut.addEventListener("click", () => {
					this.nextPage();
				});
				
				this.lastBut.addEventListener("click", () => {
					this.setPage(this.max);
				});
				
				if(this.table.options.paginationElement){
					this.element = this.table.options.paginationElement;
				}
				
				if(this.pageSizeSelect){
					pageSelectLabel = document.createElement("label");
					
					this.langBind("pagination|page_size", (value) => {
						this.pageSizeSelect.setAttribute("aria-label", value);
						this.pageSizeSelect.setAttribute("title", value);
						pageSelectLabel.innerHTML = value;
					});
					
					this.element.appendChild(pageSelectLabel);
					this.element.appendChild(this.pageSizeSelect);
					
					this.pageSizeSelect.addEventListener("change", (e) => {
						this.setPageSize(this.pageSizeSelect.value == "true" ? true : this.pageSizeSelect.value);
						this.setPage(1);
					});
				}
				
				//append to DOM
				this.element.appendChild(this.firstBut);
				this.element.appendChild(this.prevBut);
				this.element.appendChild(this.pagesElement);
				this.element.appendChild(this.nextBut);
				this.element.appendChild(this.lastBut);
				
				if(!this.table.options.paginationElement){
					if(this.table.options.paginationCounter){

						if(this.table.options.paginationCounterElement){
							if(this.table.options.paginationCounterElement instanceof HTMLElement){
								this.table.options.paginationCounterElement.appendChild(this.pageCounterElement);
							}else if(typeof this.table.options.paginationCounterElement === "string"){
								paginationCounterHolder = document.querySelector(this.table.options.paginationCounterElement);
								
								if(paginationCounterHolder){
									paginationCounterHolder.appendChild(this.pageCounterElement);
								}else {
									console.warn("Pagination Error - Unable to find element matching paginationCounterElement selector:", this.table.options.paginationCounterElement);
								}
							}
						}else {
							this.footerAppend(this.pageCounterElement);
						}
						
					}
					
					this.footerAppend(this.element);
				}
				
				this.page = this.table.options.paginationInitialPage;
				this.count = this.table.options.paginationButtonCount;
			}
			
			//set default values
			this.mode = this.table.options.paginationMode;
		}
		
		initializeProgressive(mode){
			this.initializePaginator(true);
			this.mode = "progressive_" + mode;
			this.progressiveLoad = true;
		}
		
		trackChanges(){
			this.dispatch("page-changed");
		}
		
		//calculate maximum page from number of rows
		setMaxRows(rowCount){
			if(!rowCount){
				this.max = 1;
			}else {
				this.max = this.size === true ?  1 : Math.ceil(rowCount/this.size);
			}
			
			if(this.page > this.max){
				this.page = this.max;
			}
		}
		
		//reset to first page without triggering action
		reset(force){
			if(!this.initialLoad){
				if(this.mode == "local" || force){
					this.page = 1;
					this.trackChanges();
				}
			}
		}
		
		//set the maximum page
		setMaxPage(max){
			
			max = parseInt(max);
			
			this.max = max || 1;
			
			if(this.page > this.max){
				this.page = this.max;
				this.trigger();
			}
		}
		
		//set current page number
		setPage(page){
			switch(page){
				case "first":
					return this.setPage(1);
		
				case "prev":
					return this.previousPage();
				
				case "next":
					return this.nextPage();
				
				case "last":
					return this.setPage(this.max);
			}
			
			page = parseInt(page);
			
			if((page > 0 && page <= this.max) || this.mode !== "local"){
				this.page = page;
				
				this.trackChanges();
				
				return this.trigger();
			}else {
				console.warn("Pagination Error - Requested page is out of range of 1 - " + this.max + ":", page);
				return Promise.reject();
			}
		}
		
		setPageToRow(row){
			var rows = this.displayRows(-1);
			var index = rows.indexOf(row);
		
			if(index > -1){
				var page = this.size === true ? 1 : Math.ceil((index + 1) / this.size);
				
				return this.setPage(page);
			}else {
				console.warn("Pagination Error - Requested row is not visible");
				return Promise.reject();
			}
		}
		
		setPageSize(size){
			if(size !== true){
				size = parseInt(size);
			}

			if(size > 0){
				this.size = size;
				this.dispatchExternal("pageSizeChanged", size);
			}
			
			if(this.pageSizeSelect){
				// this.pageSizeSelect.value = size;
				this.generatePageSizeSelectList();
			}
			
			this.trackChanges();
		}
		
		_setPageCounter(totalRows, size, currentRow){
			var content;
			
			if(this.pageCounter){

				if(this.mode === "remote"){
					size = this.size;
					currentRow = ((this.page - 1) * this.size) + 1;
					totalRows = this.remoteRowCountEstimate;
				}

				content = this.pageCounter.call(this, size, currentRow, this.page, totalRows, this.max);
				
				switch(typeof content){
					case "object":
						if(content instanceof Node){
						
							//clear previous cell contents
							while(this.pageCounterElement.firstChild) this.pageCounterElement.removeChild(this.pageCounterElement.firstChild);
						
							this.pageCounterElement.appendChild(content);
						}else {
							this.pageCounterElement.innerHTML = "";
						
							if(content != null){
								console.warn("Page Counter Error - Page Counter has returned a type of object, the only valid page counter object return is an instance of Node, the page counter returned:", content);
							}
						}
						break;
					case "undefined":
						this.pageCounterElement.innerHTML = "";
						break;
					default:
						this.pageCounterElement.innerHTML = content;
				}
			}
		}
		
		//setup the pagination buttons
		_setPageButtons(){
			let leftSize = Math.floor((this.count-1) / 2);
			let rightSize = Math.ceil((this.count-1) / 2);
			let min = this.max - this.page + leftSize + 1 < this.count ? this.max-this.count+1: Math.max(this.page-leftSize,1);
			let max = this.page <= rightSize? Math.min(this.count, this.max) :Math.min(this.page+rightSize, this.max);
			
			while(this.pagesElement.firstChild) this.pagesElement.removeChild(this.pagesElement.firstChild);
			
			if(this.page == 1){
				this.firstBut.disabled = true;
				this.prevBut.disabled = true;
			}else {
				this.firstBut.disabled = false;
				this.prevBut.disabled = false;
			}
			
			if(this.page == this.max){
				this.lastBut.disabled = true;
				this.nextBut.disabled = true;
			}else {
				this.lastBut.disabled = false;
				this.nextBut.disabled = false;
			}
			
			for(let i = min; i <= max; i++){
				if(i>0 && i <= this.max){
					this.pagesElement.appendChild(this._generatePageButton(i));
				}
			}
			
			this.footerRedraw();
		}
		
		_generatePageButton(page){
			var button = document.createElement("button");
			
			button.classList.add("tabulator-page");
			if(page == this.page){
				button.classList.add("active");
			}
			
			button.setAttribute("type", "button");
			button.setAttribute("role", "button");
			
			this.langBind("pagination|page_title", (value) => {
				button.setAttribute("aria-label", value + " " + page);
				button.setAttribute("title", value + " " + page);
			});
			
			button.setAttribute("data-page", page);
			button.textContent = page;
			
			button.addEventListener("click", (e) => {
				this.setPage(page);
			});
			
			return button;
		}
		
		//previous page
		previousPage(){
			if(this.page > 1){
				this.page--;
				
				this.trackChanges();
				
				return this.trigger();
				
			}else {
				console.warn("Pagination Error - Previous page would be less than page 1:", 0);
				return Promise.reject();
			}
		}
		
		//next page
		nextPage(){
			if(this.page < this.max){
				this.page++;
				
				this.trackChanges();
				
				return this.trigger();
				
			}else {
				if(!this.progressiveLoad){
					console.warn("Pagination Error - Next page would be greater than maximum page of " + this.max + ":", this.max + 1);
				}
				return Promise.reject();
			}
		}
		
		//return current page number
		getPage(){
			return this.page;
		}
		
		//return max page number
		getPageMax(){
			return this.max;
		}
		
		getPageSize(size){
			return this.size;
		}
		
		getMode(){
			return this.mode;
		}
		
		//return appropriate rows for current page
		getRows(data){
			var actualRowPageSize = 0,
			output, start, end, actualStartRow;

			var actualRows = data.filter((row) => {
				return row.type === "row";
			});
			
			if(this.mode == "local"){
				output = [];
				
				this.setMaxRows(data.length);
				
				if(this.size === true){
					start = 0;
					end = data.length;
				}else {
					start = this.size * (this.page - 1);
					end = start + parseInt(this.size);
				}
				
				this._setPageButtons();
				
				for(let i = start; i < end; i++){
					let row = data[i];

					if(row){
						output.push(row);

						if(row.type === "row"){
							if(!actualStartRow){
								actualStartRow = row;
							}	

							actualRowPageSize++;
						}
					}
				}
				
				this._setPageCounter(actualRows.length, actualRowPageSize, actualStartRow ? (actualRows.indexOf(actualStartRow) + 1) : 0);
				
				return output;
			}else {
				this._setPageButtons();
				this._setPageCounter(actualRows.length);
				
				return data.slice(0);
			}
		}
		
		trigger(){
			var left;
			
			switch(this.mode){
				case "local":
					left = this.table.rowManager.scrollLeft;
				
					this.refreshData();
					this.table.rowManager.scrollHorizontal(left);
				
					this.dispatchExternal("pageLoaded", this.getPage());
				
					return Promise.resolve();
				
				case "remote":
					this.dataChanging = true;
					return this.reloadData(null)
						.finally(() => {
							this.dataChanging = false;
						});
				
				case "progressive_load":
				case "progressive_scroll":
					return this.reloadData(null, true);
				
				default:
					console.warn("Pagination Error - no such pagination mode:", this.mode);
					return Promise.reject();
			}
		}
		
		_parseRemoteData(data){
			var margin, paginationOutOfRange;
			
			if(typeof data.last_page === "undefined"){
				console.warn("Remote Pagination Error - Server response missing '" + (this.options("dataReceiveParams").last_page || "last_page") + "' property");
			}
			
			if(data.data){
				this.max = parseInt(data.last_page) || 1;

				this.remoteRowCountEstimate = typeof data.last_row !== "undefined" ? data.last_row : (data.last_page * this.size - (this.page == data.last_page ? (this.size - data.data.length) : 0));
				
				if(this.progressiveLoad){
					switch(this.mode){
						case "progressive_load":
						
							if(this.page == 1){
								this.table.rowManager.setData(data.data, false, this.page == 1);
							}else {
								this.table.rowManager.addRows(data.data);
							}
						
							if(this.page < this.max){
								setTimeout(() => {
									this.nextPage();
								}, this.table.options.progressiveLoadDelay);
							}
							break;
						
						case "progressive_scroll":
							data = this.page === 1 ? data.data : this.table.rowManager.getData().concat(data.data);
						
							this.table.rowManager.setData(data, this.page !== 1, this.page == 1);
						
							margin = this.table.options.progressiveLoadScrollMargin || (this.table.rowManager.element.clientHeight * 2);
						
							if(this.table.rowManager.element.scrollHeight <= (this.table.rowManager.element.clientHeight + margin)){
								if(this.page < this.max){
									setTimeout(() => {
										this.nextPage();
									});
								}
							}
							break;
					}
					
					return false;
				}else {

					if(this.page > this.max){
						console.warn( "Remote Pagination Error - Server returned last page value lower than the current page" );

						paginationOutOfRange = this.options('paginationOutOfRange');

						if(paginationOutOfRange){
							return this.setPage(typeof paginationOutOfRange === 'function' ? paginationOutOfRange.call(this, this.page, this.max) :	paginationOutOfRange);
						}
					}

					// left = this.table.rowManager.scrollLeft;
					this.dispatchExternal("pageLoaded",  this.getPage());
					// this.table.rowManager.scrollHorizontal(left);
					// this.table.columnManager.scrollHorizontal(left);
				}
				
			}else {
				console.warn("Remote Pagination Error - Server response missing '" + (this.options("dataReceiveParams").data || "data") + "' property");
			}
			
			return data.data;
		}
		
		//handle the footer element being redrawn
		footerRedraw(){
			var footer = this.table.footerManager.containerElement;

			if((Math.ceil(footer.clientWidth) - footer.scrollWidth) < 0){
				this.pagesElement.style.display = 'none';
			}else {
				this.pagesElement.style.display = '';
				
				if((Math.ceil(footer.clientWidth) - footer.scrollWidth) < 0){
					this.pagesElement.style.display = 'none';
				}
			}
		}
	}

	// read persistance information from storage
	var defaultReaders = {
		local:function(id, type){
			var data = localStorage.getItem(id + "-" + type);

			return data ? JSON.parse(data) : false;
		},
		cookie:function(id, type){
			var cookie = document.cookie,
			key = id + "-" + type,
			cookiePos = cookie.indexOf(key + "="),
			end, data;

			//if cookie exists, decode and load column data into tabulator
			if(cookiePos > -1){
				cookie = cookie.slice(cookiePos);

				end = cookie.indexOf(";");

				if(end > -1){
					cookie = cookie.slice(0, end);
				}

				data = cookie.replace(key + "=", "");
			}

			return data ? JSON.parse(data) : false;
		}
	};

	//write persistence information to storage
	var defaultWriters = {
		local:function(id, type, data){
			localStorage.setItem(id + "-" + type, JSON.stringify(data));
		},
		cookie:function(id, type, data){
			var expireDate = new Date();

			expireDate.setDate(expireDate.getDate() + 10000);

			document.cookie = id + "-" + type + "=" + JSON.stringify(data) + "; expires=" + expireDate.toUTCString();
		}
	};

	class Persistence extends Module{

		static moduleName = "persistence";

		static moduleInitOrder = -10;

		//load defaults
		static readers = defaultReaders;
		static writers = defaultWriters;

		constructor(table){
			super(table);

			this.mode = "";
			this.id = "";
			// this.persistProps = ["field", "width", "visible"];
			this.defWatcherBlock = false;
			this.config = {};
			this.readFunc = false;
			this.writeFunc = false;

			this.registerTableOption("persistence", false);
			this.registerTableOption("persistenceID", ""); //key for persistent storage
			this.registerTableOption("persistenceMode", true); //mode for storing persistence information
			this.registerTableOption("persistenceReaderFunc", false); //function for handling persistence data reading
			this.registerTableOption("persistenceWriterFunc", false); //function for handling persistence data writing
		}

		// Test for whether localStorage is available for use.
		localStorageTest() {
			var  testKey =  "_tabulator_test";

			try {
				window.localStorage.setItem( testKey, testKey);
				window.localStorage.removeItem( testKey );
				return true;
			} catch(e) {
				return false;
			}
		}

		//setup parameters
		initialize(){
			if(this.table.options.persistence){
				//determine persistent layout storage type
				var mode = this.table.options.persistenceMode,
				id = this.table.options.persistenceID,
				retrievedData;

				this.mode = mode !== true ?  mode : (this.localStorageTest() ? "local" : "cookie");

				if(this.table.options.persistenceReaderFunc){
					if(typeof this.table.options.persistenceReaderFunc === "function"){
						this.readFunc = this.table.options.persistenceReaderFunc;
					}else {
						if(Persistence.readers[this.table.options.persistenceReaderFunc]){
							this.readFunc = Persistence.readers[this.table.options.persistenceReaderFunc];
						}else {
							console.warn("Persistence Read Error - invalid reader set", this.table.options.persistenceReaderFunc);
						}
					}
				}else {
					if(Persistence.readers[this.mode]){
						this.readFunc = Persistence.readers[this.mode];
					}else {
						console.warn("Persistence Read Error - invalid reader set", this.mode);
					}
				}

				if(this.table.options.persistenceWriterFunc){
					if(typeof this.table.options.persistenceWriterFunc === "function"){
						this.writeFunc = this.table.options.persistenceWriterFunc;
					}else {
						if(Persistence.writers[this.table.options.persistenceWriterFunc]){
							this.writeFunc = Persistence.writers[this.table.options.persistenceWriterFunc];
						}else {
							console.warn("Persistence Write Error - invalid reader set", this.table.options.persistenceWriterFunc);
						}
					}
				}else {
					if(Persistence.writers[this.mode]){
						this.writeFunc = Persistence.writers[this.mode];
					}else {
						console.warn("Persistence Write Error - invalid writer set", this.mode);
					}
				}

				//set storage tag
				this.id = "tabulator-" + (id || (this.table.element.getAttribute("id") || ""));

				this.config = {
					sort:this.table.options.persistence === true || this.table.options.persistence.sort,
					filter:this.table.options.persistence === true || this.table.options.persistence.filter,
					headerFilter:this.table.options.persistence === true || this.table.options.persistence.headerFilter,
					group:this.table.options.persistence === true || this.table.options.persistence.group,
					page:this.table.options.persistence === true || this.table.options.persistence.page,
					columns:this.table.options.persistence === true ? ["title", "width", "visible"] : this.table.options.persistence.columns,
				};

				//load pagination data if needed
				if(this.config.page){
					retrievedData = this.retrieveData("page");

					if(retrievedData){
						if(typeof retrievedData.paginationSize !== "undefined" && (this.config.page === true || this.config.page.size)){
							this.table.options.paginationSize = retrievedData.paginationSize;
						}

						if(typeof retrievedData.paginationInitialPage !== "undefined" && (this.config.page === true || this.config.page.page)){
							this.table.options.paginationInitialPage = retrievedData.paginationInitialPage;
						}
					}
				}

				//load group data if needed
				if(this.config.group){
					retrievedData = this.retrieveData("group");

					if(retrievedData){
						if(typeof retrievedData.groupBy !== "undefined" && (this.config.group === true || this.config.group.groupBy)){
							this.table.options.groupBy = retrievedData.groupBy;
						}
						if(typeof retrievedData.groupStartOpen !== "undefined" && (this.config.group === true || this.config.group.groupStartOpen)){
							this.table.options.groupStartOpen = retrievedData.groupStartOpen;
						}
						if(typeof retrievedData.groupHeader !== "undefined" && (this.config.group === true || this.config.group.groupHeader)){
							this.table.options.groupHeader = retrievedData.groupHeader;
						}
					}
				}

				if(this.config.columns){
					this.table.options.columns = this.load("columns", this.table.options.columns);
					this.subscribe("column-init", this.initializeColumn.bind(this));
					this.subscribe("column-show", this.save.bind(this, "columns"));
					this.subscribe("column-hide", this.save.bind(this, "columns"));
					this.subscribe("column-moved", this.save.bind(this, "columns"));
				}

				this.subscribe("table-built", this.tableBuilt.bind(this), 0);

				this.subscribe("table-redraw", this.tableRedraw.bind(this));

				this.subscribe("filter-changed", this.eventSave.bind(this, "filter"));
				this.subscribe("filter-changed", this.eventSave.bind(this, "headerFilter"));
				this.subscribe("sort-changed", this.eventSave.bind(this, "sort"));
				this.subscribe("group-changed", this.eventSave.bind(this, "group"));
				this.subscribe("page-changed", this.eventSave.bind(this, "page"));
				this.subscribe("column-resized", this.eventSave.bind(this, "columns"));
				this.subscribe("column-width", this.eventSave.bind(this, "columns"));
				this.subscribe("layout-refreshed", this.eventSave.bind(this, "columns"));
			}

			this.registerTableFunction("getColumnLayout", this.getColumnLayout.bind(this));
			this.registerTableFunction("setColumnLayout", this.setColumnLayout.bind(this));
		}

		eventSave(type){
			if(this.config[type]){
				this.save(type);
			}
		}

		tableBuilt(){
			var sorters, filters, headerFilters;

			if(this.config.sort){
				sorters = this.load("sort");

				if(!sorters === false){
					this.table.options.initialSort = sorters;
				}
			}

			if(this.config.filter){
				filters = this.load("filter");

				if(!filters === false){
					this.table.options.initialFilter = filters;
				}
			}
			if(this.config.headerFilter){
				headerFilters = this.load("headerFilter");

				if(!headerFilters === false){
					this.table.options.initialHeaderFilter = headerFilters;
				}
			}
			
		}

		tableRedraw(force){
			if(force && this.config.columns){
				this.save("columns");
			}
		}

		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////

		getColumnLayout(){
			return this.parseColumns(this.table.columnManager.getColumns());
		}

		setColumnLayout(layout){
			this.table.columnManager.setColumns(this.mergeDefinition(this.table.options.columns, layout, true));
			return true;
		}

		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////

		initializeColumn(column){
			var def, keys;

			if(this.config.columns){
				this.defWatcherBlock = true;

				def = column.getDefinition();

				keys = this.config.columns === true ? Object.keys(def) : this.config.columns;

				keys.forEach((key)=>{
					var props = Object.getOwnPropertyDescriptor(def, key);
					var value = def[key];

					if(props){
						Object.defineProperty(def, key, {
							set: (newValue) => {
								value = newValue;

								if(!this.defWatcherBlock){
									this.save("columns");
								}

								if(props.set){
									props.set(newValue);
								}
							},
							get:() => {
								if(props.get){
									props.get();
								}
								return value;
							}
						});
					}
				});

				this.defWatcherBlock = false;
			}
		}

		//load saved definitions
		load(type, current){
			var data = this.retrieveData(type);

			if(current){
				data = data ? this.mergeDefinition(current, data) : current;
			}

			return data;
		}

		//retrieve data from memory
		retrieveData(type){
			return this.readFunc ? this.readFunc(this.id, type) : false;
		}

		//merge old and new column definitions
		mergeDefinition(oldCols, newCols, mergeAllNew){
			var output = [];

			newCols = newCols || [];

			newCols.forEach((column, to) => {
				var from = this._findColumn(oldCols, column),
				keys;

				if(from){
					if(mergeAllNew){
						keys = Object.keys(column);
					}else if(this.config.columns === true || this.config.columns == undefined){
						keys =  Object.keys(from);
						keys.push("width");
					}else {
						keys = this.config.columns;
					}

					keys.forEach((key)=>{
						if(key !== "columns" && typeof column[key] !== "undefined"){
							from[key] = column[key];
						}
					});

					if(from.columns){
						from.columns = this.mergeDefinition(from.columns, column.columns);
					}

					output.push(from);
				}
			});

			oldCols.forEach((column, i) => {
				var from = this._findColumn(newCols, column);

				if (!from) {
					if(output.length>i){
						output.splice(i, 0, column);
					}else {
						output.push(column);
					}
				}
			});

			return output;
		}

		//find matching columns
		_findColumn(columns, subject){
			var type = subject.columns ? "group" : (subject.field ? "field" : "object");

			return columns.find(function(col){
				switch(type){
					case "group":
						return col.title === subject.title && col.columns.length === subject.columns.length;

					case "field":
						return col.field === subject.field;

					case "object":
						return col === subject;
				}
			});
		}

		//save data
		save(type){
			var data = {};

			switch(type){
				case "columns":
					data = this.parseColumns(this.table.columnManager.getColumns());
					break;

				case "filter":
					data = this.table.modules.filter.getFilters();
					break;

				case "headerFilter":
					data = this.table.modules.filter.getHeaderFilters();
					break;

				case "sort":
					data = this.validateSorters(this.table.modules.sort.getSort());
					break;

				case "group":
					data = this.getGroupConfig();
					break;

				case "page":
					data = this.getPageConfig();
					break;
			}

			if(this.writeFunc){
				this.writeFunc(this.id, type, data);
			}

		}

		//ensure sorters contain no function data
		validateSorters(data){
			data.forEach(function(item){
				item.column = item.field;
				delete item.field;
			});

			return data;
		}

		getGroupConfig(){
			var data = {};

			if(this.config.group){
				if(this.config.group === true || this.config.group.groupBy){
					data.groupBy = this.table.options.groupBy;
				}

				if(this.config.group === true || this.config.group.groupStartOpen){
					data.groupStartOpen = this.table.options.groupStartOpen;
				}

				if(this.config.group === true || this.config.group.groupHeader){
					data.groupHeader = this.table.options.groupHeader;
				}
			}

			return data;
		}

		getPageConfig(){
			var data = {};

			if(this.config.page){
				if(this.config.page === true || this.config.page.size){
					data.paginationSize = this.table.modules.page.getPageSize();
				}

				if(this.config.page === true || this.config.page.page){
					data.paginationInitialPage = this.table.modules.page.getPage();
				}
			}

			return data;
		}


		//parse columns for data to store
		parseColumns(columns){
			var definitions = [],
			excludedKeys = ["headerContextMenu", "headerMenu", "contextMenu", "clickMenu"];

			columns.forEach((column) => {
				var defStore = {},
				colDef = column.getDefinition(),
				keys;

				if(column.isGroup){
					defStore.title = colDef.title;
					defStore.columns = this.parseColumns(column.getColumns());
				}else {
					defStore.field = column.getField();

					if(this.config.columns === true || this.config.columns == undefined){
						keys =  Object.keys(colDef);
						keys.push("width");
						keys.push("visible");
					}else {
						keys = this.config.columns;
					}

					keys.forEach((key)=>{
						switch(key){
							case "width":
								defStore.width = column.getWidth();
								break;
							case "visible":
								defStore.visible = column.visible;
								break;

							default:
								if(typeof colDef[key] !== "function" && excludedKeys.indexOf(key) === -1){
									defStore[key] = colDef[key];
								}
						}
					});
				}

				definitions.push(defStore);
			});

			return definitions;
		}
	}

	class Popup extends Module{
		
		static moduleName = "popup";
		
		constructor(table){
			super(table);
			
			this.columnSubscribers = {};
			
			this.registerTableOption("rowContextPopup", false);
			this.registerTableOption("rowClickPopup", false);
			this.registerTableOption("rowDblClickPopup", false);
			this.registerTableOption("groupContextPopup", false);
			this.registerTableOption("groupClickPopup", false);
			this.registerTableOption("groupDblClickPopup", false);
			
			this.registerColumnOption("headerContextPopup");
			this.registerColumnOption("headerClickPopup");
			this.registerColumnOption("headerDblClickPopup");
			this.registerColumnOption("headerPopup");
			this.registerColumnOption("headerPopupIcon");
			this.registerColumnOption("contextPopup");
			this.registerColumnOption("clickPopup");
			this.registerColumnOption("dblClickPopup");

			this.registerComponentFunction("cell", "popup", this._componentPopupCall.bind(this));
			this.registerComponentFunction("column", "popup", this._componentPopupCall.bind(this));
			this.registerComponentFunction("row", "popup", this._componentPopupCall.bind(this));
			this.registerComponentFunction("group", "popup", this._componentPopupCall.bind(this));
			
		}
		
		initialize(){
			this.initializeRowWatchers();
			this.initializeGroupWatchers();
			
			this.subscribe("column-init", this.initializeColumn.bind(this));
		}

		_componentPopupCall(component, contents, position){
			this.loadPopupEvent(contents, null, component, position);
		}
		
		initializeRowWatchers(){
			if(this.table.options.rowContextPopup){
				this.subscribe("row-contextmenu", this.loadPopupEvent.bind(this, this.table.options.rowContextPopup));
				this.table.on("rowTapHold", this.loadPopupEvent.bind(this, this.table.options.rowContextPopup));
			}
			
			if(this.table.options.rowClickPopup){
				this.subscribe("row-click", this.loadPopupEvent.bind(this, this.table.options.rowClickPopup));
			}

			if(this.table.options.rowDblClickPopup){
				this.subscribe("row-dblclick", this.loadPopupEvent.bind(this, this.table.options.rowDblClickPopup));
			}
		}
		
		initializeGroupWatchers(){
			if(this.table.options.groupContextPopup){
				this.subscribe("group-contextmenu", this.loadPopupEvent.bind(this, this.table.options.groupContextPopup));
				this.table.on("groupTapHold", this.loadPopupEvent.bind(this, this.table.options.groupContextPopup));
			}
			
			if(this.table.options.groupClickPopup){
				this.subscribe("group-click", this.loadPopupEvent.bind(this, this.table.options.groupClickPopup));
			}

			if(this.table.options.groupDblClickPopup){
				this.subscribe("group-dblclick", this.loadPopupEvent.bind(this, this.table.options.groupDblClickPopup));
			}
		}

		initializeColumn(column){
			var def = column.definition;
			
			//handle column events
			if(def.headerContextPopup && !this.columnSubscribers.headerContextPopup){
				this.columnSubscribers.headerContextPopup = this.loadPopupTableColumnEvent.bind(this, "headerContextPopup");
				this.subscribe("column-contextmenu", this.columnSubscribers.headerContextPopup);
				this.table.on("headerTapHold", this.loadPopupTableColumnEvent.bind(this, "headerContextPopup"));
			}
			
			if(def.headerClickPopup && !this.columnSubscribers.headerClickPopup){
				this.columnSubscribers.headerClickPopup = this.loadPopupTableColumnEvent.bind(this, "headerClickPopup");
				this.subscribe("column-click", this.columnSubscribers.headerClickPopup);
			
			
			}if(def.headerDblClickPopup && !this.columnSubscribers.headerDblClickPopup){
				this.columnSubscribers.headerDblClickPopup = this.loadPopupTableColumnEvent.bind(this, "headerDblClickPopup");
				this.subscribe("column-dblclick", this.columnSubscribers.headerDblClickPopup);
			}
			
			if(def.headerPopup){
				this.initializeColumnHeaderPopup(column);
			}
			
			//handle cell events
			if(def.contextPopup && !this.columnSubscribers.contextPopup){
				this.columnSubscribers.contextPopup = this.loadPopupTableCellEvent.bind(this, "contextPopup");
				this.subscribe("cell-contextmenu", this.columnSubscribers.contextPopup);
				this.table.on("cellTapHold", this.loadPopupTableCellEvent.bind(this, "contextPopup"));
			}
			
			if(def.clickPopup && !this.columnSubscribers.clickPopup){
				this.columnSubscribers.clickPopup = this.loadPopupTableCellEvent.bind(this, "clickPopup");
				this.subscribe("cell-click", this.columnSubscribers.clickPopup);
			}

			if(def.dblClickPopup && !this.columnSubscribers.dblClickPopup){
				this.columnSubscribers.dblClickPopup = this.loadPopupTableCellEvent.bind(this, "dblClickPopup");
				this.subscribe("cell-click", this.columnSubscribers.dblClickPopup);
			}
		}
		
		initializeColumnHeaderPopup(column){
			var icon = column.definition.headerPopupIcon,
			headerPopupEl;
			
			headerPopupEl = document.createElement("span");
			headerPopupEl.classList.add("tabulator-header-popup-button");

			if(icon){
				if(typeof icon === "function"){
					icon = icon(column.getComponent());
				}

				if(icon instanceof HTMLElement){
					headerPopupEl.appendChild(icon);
				}else {
					headerPopupEl.innerHTML = icon;
				}
			}else {
				headerPopupEl.innerHTML = "&vellip;";
			}
			
			headerPopupEl.addEventListener("click", (e) => {
				e.stopPropagation();
				e.preventDefault();
				
				this.loadPopupEvent(column.definition.headerPopup, e, column);
			});
			
			column.titleElement.insertBefore(headerPopupEl, column.titleElement.firstChild);
		}
		
		loadPopupTableCellEvent(option, e, cell){
			if(cell._cell){
				cell = cell._cell;
			}
			
			if(cell.column.definition[option]){
				this.loadPopupEvent(cell.column.definition[option], e, cell);
			}
		}
		
		loadPopupTableColumnEvent(option, e, column){
			if(column._column){
				column = column._column;
			}
			
			if(column.definition[option]){
				this.loadPopupEvent(column.definition[option], e, column);
			}
		}
		
		loadPopupEvent(contents, e, component, position){
			var renderedCallback;

			function onRendered(callback){
				renderedCallback = callback;
			}
			
			if(component._group){
				component = component._group;
			}else if(component._row){
				component = component._row;
			}
			
			contents = typeof contents == "function" ? contents.call(this.table, e, component.getComponent(),  onRendered) : contents;
			
			this.loadPopup(e, component, contents, renderedCallback, position);
		}
		
		loadPopup(e, component, contents, renderedCallback, position){
			var touch = !(e instanceof MouseEvent),
			contentsEl, popup;
			
			if(contents instanceof HTMLElement){
				contentsEl = contents;
			}else {
				contentsEl = document.createElement("div");
				contentsEl.innerHTML = contents;
			}
			
			contentsEl.classList.add("tabulator-popup");

			contentsEl.addEventListener("click", (e) =>{
				e.stopPropagation();
			});

			if(!touch){
				e.preventDefault();
			}
			
			popup = this.popup(contentsEl);

			if(typeof renderedCallback === "function"){
				popup.renderCallback(renderedCallback);
			}

			if(e){
				popup.show(e);
			}else {
				popup.show(component.getElement(), position || "center");
			}

			
			popup.hideOnBlur(() => {
				this.dispatchExternal("popupClosed", component.getComponent());
			});

			this.dispatchExternal("popupOpened", component.getComponent());
		}
	}

	class Print extends Module{

		static moduleName = "print";

		constructor(table){
			super(table);

			this.element = false;
			this.manualBlock = false;
			this.beforeprintEventHandler = null;
			this.afterprintEventHandler = null;

			this.registerTableOption("printAsHtml", false); //enable print as html
			this.registerTableOption("printFormatter", false); //printing page formatter
			this.registerTableOption("printHeader", false); //page header contents
			this.registerTableOption("printFooter", false); //page footer contents
			this.registerTableOption("printStyled", true); //enable print as html styling
			this.registerTableOption("printRowRange", "visible"); //restrict print to visible rows only
			this.registerTableOption("printConfig", {}); //print config options

			this.registerColumnOption("print");
			this.registerColumnOption("titlePrint");
		}

		initialize(){
			if(this.table.options.printAsHtml){
				this.beforeprintEventHandler = this.replaceTable.bind(this);
				this.afterprintEventHandler = this.cleanup.bind(this);

				window.addEventListener("beforeprint", this.beforeprintEventHandler );
				window.addEventListener("afterprint", this.afterprintEventHandler);
				this.subscribe("table-destroy", this.destroy.bind(this));
			}

			this.registerTableFunction("print", this.printFullscreen.bind(this));
		}

		destroy(){
			if(this.table.options.printAsHtml){
				window.removeEventListener( "beforeprint", this.beforeprintEventHandler );
				window.removeEventListener( "afterprint", this.afterprintEventHandler );
			}
		}

		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////

		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////

		replaceTable(){
			if(!this.manualBlock){
				this.element = document.createElement("div");
				this.element.classList.add("tabulator-print-table");

				this.element.appendChild(this.table.modules.export.generateTable(this.table.options.printConfig, this.table.options.printStyled, this.table.options.printRowRange, "print"));

				this.table.element.style.display = "none";

				this.table.element.parentNode.insertBefore(this.element, this.table.element);
			}
		}

		cleanup(){
			document.body.classList.remove("tabulator-print-fullscreen-hide");

			if(this.element && this.element.parentNode){
				this.element.parentNode.removeChild(this.element);
				this.table.element.style.display = "";
			}
		}

		printFullscreen(visible, style, config){
			var scrollX = window.scrollX,
			scrollY = window.scrollY,
			headerEl = document.createElement("div"),
			footerEl = document.createElement("div"),
			tableEl = this.table.modules.export.generateTable(typeof config != "undefined" ? config : this.table.options.printConfig, typeof style != "undefined" ? style : this.table.options.printStyled, visible || this.table.options.printRowRange, "print"),
			headerContent, footerContent;

			this.manualBlock = true;

			this.element = document.createElement("div");
			this.element.classList.add("tabulator-print-fullscreen");

			if(this.table.options.printHeader){
				headerEl.classList.add("tabulator-print-header");

				headerContent = typeof this.table.options.printHeader == "function" ? this.table.options.printHeader.call(this.table) : this.table.options.printHeader;

				if(typeof headerContent == "string"){
					headerEl.innerHTML = headerContent;
				}else {
					headerEl.appendChild(headerContent);
				}

				this.element.appendChild(headerEl);
			}

			this.element.appendChild(tableEl);

			if(this.table.options.printFooter){
				footerEl.classList.add("tabulator-print-footer");

				footerContent = typeof this.table.options.printFooter == "function" ? this.table.options.printFooter.call(this.table) : this.table.options.printFooter;


				if(typeof footerContent == "string"){
					footerEl.innerHTML = footerContent;
				}else {
					footerEl.appendChild(footerContent);
				}

				this.element.appendChild(footerEl);
			}

			document.body.classList.add("tabulator-print-fullscreen-hide");
			document.body.appendChild(this.element);

			if(this.table.options.printFormatter){
				this.table.options.printFormatter(this.element, tableEl);
			}

			window.print();

			this.cleanup();

			window.scrollTo(scrollX, scrollY);

			this.manualBlock = false;
		}
	}

	class ReactiveData extends Module{

		static moduleName = "reactiveData";
		
		constructor(table){
			super(table);
			
			this.data = false;
			this.blocked = false; //block reactivity while performing update
			this.origFuncs = {}; // hold original data array functions to allow replacement after data is done with
			this.currentVersion = 0;
			
			this.registerTableOption("reactiveData", false); //enable data reactivity
		}
		
		initialize(){
			if(this.table.options.reactiveData){
				this.subscribe("cell-value-save-before", this.block.bind(this, "cellsave"));
				this.subscribe("cell-value-save-after", this.unblock.bind(this, "cellsave"));
				this.subscribe("row-data-save-before", this.block.bind(this, "rowsave"));
				this.subscribe("row-data-save-after", this.unblock.bind(this, "rowsave"));
				this.subscribe("row-data-init-after", this.watchRow.bind(this));
				this.subscribe("data-processing", this.watchData.bind(this));
				this.subscribe("table-destroy", this.unwatchData.bind(this));
			}
		}
		
		watchData(data){
			var self = this,
			version;
			
			this.currentVersion ++;
			
			version = this.currentVersion;
			
			this.unwatchData();
			
			this.data = data;
			
			//override array push function
			this.origFuncs.push = data.push;
			
			Object.defineProperty(this.data, "push", {
				enumerable: false,
				configurable: true,
				value: function(){
					var args = Array.from(arguments),
					result;

					if(!self.blocked && version === self.currentVersion){	
						self.block("data-push");

						args.forEach((arg) => {
							self.table.rowManager.addRowActual(arg, false);
						});
						
						result = self.origFuncs.push.apply(data, arguments);
						
						self.unblock("data-push");
					}
					
					return result;
				}
			});
			
			//override array unshift function
			this.origFuncs.unshift = data.unshift;
			
			Object.defineProperty(this.data, "unshift", {
				enumerable: false,
				configurable: true,
				value: function(){
					var args = Array.from(arguments),
					result;
					
					if(!self.blocked && version === self.currentVersion){
						self.block("data-unshift");
						
						args.forEach((arg) => {
							self.table.rowManager.addRowActual(arg, true);
						});
						
						result = self.origFuncs.unshift.apply(data, arguments);
						
						self.unblock("data-unshift");
					}
					
					return result;
				}
			});
			
			
			//override array shift function
			this.origFuncs.shift = data.shift;
			
			Object.defineProperty(this.data, "shift", {
				enumerable: false,
				configurable: true,
				value: function(){
					var row, result;
					
					if(!self.blocked && version === self.currentVersion){
						self.block("data-shift");
						
						if(self.data.length){
							row = self.table.rowManager.getRowFromDataObject(self.data[0]);
							
							if(row){
								row.deleteActual();
							}
						}

						result = self.origFuncs.shift.call(data);

						self.unblock("data-shift");
					}
					
					return result;
				}
			});
			
			//override array pop function
			this.origFuncs.pop = data.pop;
			
			Object.defineProperty(this.data, "pop", {
				enumerable: false,
				configurable: true,
				value: function(){
					var row, result;
				
					if(!self.blocked && version === self.currentVersion){
						self.block("data-pop");
						
						if(self.data.length){
							row = self.table.rowManager.getRowFromDataObject(self.data[self.data.length - 1]);
							
							if(row){
								row.deleteActual();
							}
						}

						result = self.origFuncs.pop.call(data);
						
						self.unblock("data-pop");
					}

					return result;
				}
			});
			
			
			//override array splice function
			this.origFuncs.splice = data.splice;
			
			Object.defineProperty(this.data, "splice", {
				enumerable: false,
				configurable: true,
				value: function(){
					var args = Array.from(arguments),
					start = args[0] < 0 ? data.length + args[0] : args[0],
					end = args[1],
					newRows = args[2] ? args.slice(2) : false,
					startRow, result;
					
					if(!self.blocked && version === self.currentVersion){
						self.block("data-splice");
						//add new rows
						if(newRows){
							startRow = data[start] ? self.table.rowManager.getRowFromDataObject(data[start]) : false;
							
							if(startRow){
								newRows.forEach((rowData) => {
									self.table.rowManager.addRowActual(rowData, true, startRow, true);
								});
							}else {
								newRows = newRows.slice().reverse();
								
								newRows.forEach((rowData) => {
									self.table.rowManager.addRowActual(rowData, true, false, true);
								});
							}
						}
						
						//delete removed rows
						if(end !== 0){
							var oldRows = data.slice(start, typeof args[1] === "undefined" ? args[1] : start + end);
							
							oldRows.forEach((rowData, i) => {
								var row = self.table.rowManager.getRowFromDataObject(rowData);
								
								if(row){
									row.deleteActual(i !== oldRows.length - 1);
								}
							});
						}
						
						if(newRows || end !== 0){
							self.table.rowManager.reRenderInPosition();
						}

						result = self.origFuncs.splice.apply(data, arguments);
						
						self.unblock("data-splice");
					}
					
					return result ;
				}
			});
		}
		
		unwatchData(){
			if(this.data !== false){
				for(var key in this.origFuncs){
					Object.defineProperty(this.data, key, {
						enumerable: true,
						configurable:true,
						writable:true,
						value: this.origFuncs.key,
					});
				}
			}
		}
		
		watchRow(row){
			var data = row.getData();
			
			for(var key in data){
				this.watchKey(row, data, key);
			}
			
			if(this.table.options.dataTree){
				this.watchTreeChildren(row);
			}
		}
		
		watchTreeChildren (row){
			var self = this,
			childField = row.getData()[this.table.options.dataTreeChildField],
			origFuncs = {};
			
			if(childField){
				
				origFuncs.push = childField.push;
				
				Object.defineProperty(childField, "push", {
					enumerable: false,
					configurable: true,
					value: () => {
						if(!self.blocked){
							self.block("tree-push");
							
							var result = origFuncs.push.apply(childField, arguments);
							this.rebuildTree(row);
							
							self.unblock("tree-push");
						}
						
						return result;
					}
				});
				
				origFuncs.unshift = childField.unshift;
				
				Object.defineProperty(childField, "unshift", {
					enumerable: false,
					configurable: true,
					value: () => {
						if(!self.blocked){
							self.block("tree-unshift");
							
							var result =  origFuncs.unshift.apply(childField, arguments);
							this.rebuildTree(row);
							
							self.unblock("tree-unshift");
						}
						
						return result;
					}
				});
				
				origFuncs.shift = childField.shift;
				
				Object.defineProperty(childField, "shift", {
					enumerable: false,
					configurable: true,
					value: () => {
						if(!self.blocked){
							self.block("tree-shift");
							
							var result =  origFuncs.shift.call(childField);
							this.rebuildTree(row);
							
							self.unblock("tree-shift");
						}
						
						return result;
					}
				});
				
				origFuncs.pop = childField.pop;
				
				Object.defineProperty(childField, "pop", {
					enumerable: false,
					configurable: true,
					value: () => {
						if(!self.blocked){
							self.block("tree-pop");
							
							var result =  origFuncs.pop.call(childField);
							this.rebuildTree(row);
							
							self.unblock("tree-pop");
						}
						
						return result;
					}
				});
				
				origFuncs.splice = childField.splice;
				
				Object.defineProperty(childField, "splice", {
					enumerable: false,
					configurable: true,
					value: () => {
						if(!self.blocked){
							self.block("tree-splice");
							
							var result =  origFuncs.splice.apply(childField, arguments);
							this.rebuildTree(row);
							
							self.unblock("tree-splice");
						}
						
						return result;
					}
				});
			}
		}
		
		rebuildTree(row){
			this.table.modules.dataTree.initializeRow(row);
			this.table.modules.dataTree.layoutRow(row);
			this.table.rowManager.refreshActiveData("tree", false, true);
		}
		
		watchKey(row, data, key){
			var self = this,
			props = Object.getOwnPropertyDescriptor(data, key),
			value = data[key],
			version = this.currentVersion;
			
			Object.defineProperty(data, key, {
				set: (newValue) => {
					value = newValue;
					if(!self.blocked && version === self.currentVersion){
						self.block("key");
						
						var update = {};
						update[key] = newValue;
						row.updateData(update);
						
						self.unblock("key");
					}
					
					if(props.set){
						props.set(newValue);
					}
				},
				get:() => {
					
					if(props.get){
						props.get();
					}
					
					return value;
				}
			});
		}
		
		unwatchRow(row){
			var data = row.getData();
			
			for(var key in data){
				Object.defineProperty(data, key, {
					value:data[key],
				});
			}
		}
		
		block(key){
			if(!this.blocked){
				this.blocked = key;
			}
		}
		
		unblock(key){
			if(this.blocked === key){
				this.blocked = false;
			}
		}
	}

	class ResizeColumns extends Module{

		static moduleName = "resizeColumns";

		constructor(table){
			super(table);
			
			this.startColumn = false;
			this.startX = false;
			this.startWidth = false;
			this.latestX = false;
			this.handle = null;
			this.initialNextColumn = null;
			this.nextColumn = null;
			
			this.initialized = false;
			this.registerColumnOption("resizable", true);
			this.registerTableOption("resizableColumnFit", false);
			this.registerTableOption("resizableColumnGuide", false);
		}
		
		initialize(){
			this.subscribe("column-rendered", this.layoutColumnHeader.bind(this));
		}
		
		initializeEventWatchers(){
			if(!this.initialized){
				
				this.subscribe("cell-rendered", this.layoutCellHandles.bind(this));
				this.subscribe("cell-delete", this.deInitializeComponent.bind(this));
				
				this.subscribe("cell-height", this.resizeHandle.bind(this));
				this.subscribe("column-moved", this.columnLayoutUpdated.bind(this));
				
				this.subscribe("column-hide", this.deInitializeColumn.bind(this));
				this.subscribe("column-show", this.columnLayoutUpdated.bind(this));
				this.subscribe("column-width", this.columnWidthUpdated.bind(this));
				
				this.subscribe("column-delete", this.deInitializeComponent.bind(this));
				this.subscribe("column-height", this.resizeHandle.bind(this));
				
				this.initialized = true;
			}
		}
		
		
		layoutCellHandles(cell){
			if(cell.row.type === "row"){
				this.deInitializeComponent(cell);
				this.initializeColumn("cell", cell, cell.column, cell.element);
			}
		}
		
		layoutColumnHeader(column){
			if(column.definition.resizable){
				this.initializeEventWatchers();
				this.deInitializeComponent(column);
				this.initializeColumn("header", column, column, column.element);
			}
		}
		
		columnLayoutUpdated(column){
			var prev = column.prevColumn();
			
			this.reinitializeColumn(column);
			
			if(prev){
				this.reinitializeColumn(prev);
			}
		}
		
		columnWidthUpdated(column){
			if(column.modules.frozen){
				if(this.table.modules.frozenColumns.leftColumns.includes(column)){
					this.table.modules.frozenColumns.leftColumns.forEach((col) => {
						this.reinitializeColumn(col);
					});
				}else if(this.table.modules.frozenColumns.rightColumns.includes(column)){
					this.table.modules.frozenColumns.rightColumns.forEach((col) => {
						this.reinitializeColumn(col);
					});
				}
			}
		}

		frozenColumnOffset(column){
			var offset = false;

			if(column.modules.frozen){
				offset = column.modules.frozen.marginValue; 

				if(column.modules.frozen.position === "left"){
					offset += column.getWidth() - 3;
				}else {
					if(offset){
						offset -= 3;
					}
				}
			}

			return offset !== false ? offset + "px" : false;
		}
		
		reinitializeColumn(column){
			var frozenOffset = this.frozenColumnOffset(column);
			
			column.cells.forEach((cell) => {
				if(cell.modules.resize && cell.modules.resize.handleEl){
					if(frozenOffset){
						cell.modules.resize.handleEl.style[column.modules.frozen.position] = frozenOffset;
						cell.modules.resize.handleEl.style["z-index"] = 11;
					}
					
					cell.element.after(cell.modules.resize.handleEl);
				}
			});
			
			if(column.modules.resize && column.modules.resize.handleEl){
				if(frozenOffset){
					column.modules.resize.handleEl.style[column.modules.frozen.position] = frozenOffset;
				}
				
				column.element.after(column.modules.resize.handleEl);
			}
		}
		
		initializeColumn(type, component, column, element){
			var self = this,
			variableHeight = false,
			mode = column.definition.resizable,
			config = {},
			nearestColumn = column.getLastColumn();
			
			//set column resize mode
			if(type === "header"){
				variableHeight = column.definition.formatter == "textarea" || column.definition.variableHeight;
				config = {variableHeight:variableHeight};
			}
			
			if((mode === true || mode == type) && this._checkResizability(nearestColumn)){
				
				var handle = document.createElement('span');
				handle.className = "tabulator-col-resize-handle";
				
				handle.addEventListener("click", function(e){
					e.stopPropagation();
				});
				
				var handleDown = function(e){
					self.startColumn = column;
					self.initialNextColumn = self.nextColumn = nearestColumn.nextColumn();
					self._mouseDown(e, nearestColumn, handle);
				};
				
				handle.addEventListener("mousedown", handleDown);
				handle.addEventListener("touchstart", handleDown, {passive: true});
				
				//resize column on  double click
				handle.addEventListener("dblclick", (e) => {
					var oldWidth = nearestColumn.getWidth();
					
					e.stopPropagation();
					nearestColumn.reinitializeWidth(true);
					
					if(oldWidth !== nearestColumn.getWidth()){
						self.dispatch("column-resized", nearestColumn);
						self.dispatchExternal("columnResized", nearestColumn.getComponent());
					}
				});
				
				if(column.modules.frozen){
					handle.style.position = "sticky";
					handle.style[column.modules.frozen.position] = this.frozenColumnOffset(column);
				}
				
				config.handleEl = handle;
				
				if(element.parentNode && column.visible){
					element.after(handle);			
				}
			}
			
			component.modules.resize = config;
		}
		
		deInitializeColumn(column){
			this.deInitializeComponent(column);
			
			column.cells.forEach((cell) => {
				this.deInitializeComponent(cell);
			});
		}
		
		deInitializeComponent(component){
			var handleEl;
			
			if(component.modules.resize){
				handleEl = component.modules.resize.handleEl;
				
				if(handleEl && handleEl.parentElement){
					handleEl.parentElement.removeChild(handleEl);
				}
			}
		}
		
		resizeHandle(component, height){
			if(component.modules.resize && component.modules.resize.handleEl){
				component.modules.resize.handleEl.style.height = height;
			}
		}
		
		resize(e, column){
			var x = typeof e.clientX === "undefined" ? e.touches[0].clientX : e.clientX,
			startDiff = x - this.startX,
			moveDiff = x - this.latestX,
			blockedBefore, blockedAfter;

			this.latestX = x;

			if(this.table.rtl){
				startDiff = -startDiff;
				moveDiff = -moveDiff;
			}

			blockedBefore = column.width == column.minWidth || column.width == column.maxWidth;

			column.setWidth(this.startWidth + startDiff);

			blockedAfter = column.width == column.minWidth || column.width == column.maxWidth;

			if(moveDiff < 0){
				this.nextColumn = this.initialNextColumn;
			}

			if(this.table.options.resizableColumnFit && this.nextColumn && !(blockedBefore && blockedAfter)){
				let colWidth = this.nextColumn.getWidth();

				if(moveDiff > 0){
					if(colWidth <= this.nextColumn.minWidth){
						this.nextColumn = this.nextColumn.nextColumn();
					}
				}

				if(this.nextColumn){
					this.nextColumn.setWidth(this.nextColumn.getWidth() - moveDiff);
				}
			}

			this.table.columnManager.rerenderColumns(true);

			if(!this.table.browserSlow && column.modules.resize && column.modules.resize.variableHeight){
				column.checkCellHeights();
			}
		}

		calcGuidePosition(e, column, handle) {
			var mouseX = typeof e.clientX === "undefined" ? e.touches[0].clientX : e.clientX,
			handleX = handle.getBoundingClientRect().x - this.table.element.getBoundingClientRect().x,
			tableX = this.table.element.getBoundingClientRect().x,
			columnX = column.element.getBoundingClientRect().left - tableX,
			mouseDiff = mouseX - this.startX,
			pos = Math.max(handleX + mouseDiff, columnX + column.minWidth);

			if(column.maxWidth){
				pos = Math.min(pos, columnX + column.maxWidth);
			}

			return pos;
		}

		_checkResizability(column){
			return column.definition.resizable;
		}
		
		_mouseDown(e, column, handle){
			var self = this,
			guideEl;

			this.dispatchExternal("columnResizing", column.getComponent());

			if(self.table.options.resizableColumnGuide){
				guideEl = document.createElement("span");
				guideEl.classList.add('tabulator-col-resize-guide');
				self.table.element.appendChild(guideEl);
				setTimeout(() => {
					guideEl.style.left = self.calcGuidePosition(e, column, handle) + "px";
				});
			}

			self.table.element.classList.add("tabulator-block-select");

			function mouseMove(e){
				if(self.table.options.resizableColumnGuide){
					guideEl.style.left = self.calcGuidePosition(e, column, handle) + "px";
				}else {
					self.resize(e, column);
				}
			}
			
			function mouseUp(e){
				if(self.table.options.resizableColumnGuide){
					self.resize(e, column);
					guideEl.remove();
				}
				
				//block editor from taking action while resizing is taking place
				if(self.startColumn.modules.edit){
					self.startColumn.modules.edit.blocked = false;
				}
				
				if(self.table.browserSlow && column.modules.resize && column.modules.resize.variableHeight){
					column.checkCellHeights();
				}
				
				document.body.removeEventListener("mouseup", mouseUp);
				document.body.removeEventListener("mousemove", mouseMove);
				
				handle.removeEventListener("touchmove", mouseMove);
				handle.removeEventListener("touchend", mouseUp);
				
				self.table.element.classList.remove("tabulator-block-select");
				
				if(self.startWidth !== column.getWidth()){
					self.table.columnManager.verticalAlignHeaders();

					self.dispatch("column-resized", column);
					self.dispatchExternal("columnResized", column.getComponent());
				}
			}
			
			e.stopPropagation(); //prevent resize from interfering with movable columns
			
			//block editor from taking action while resizing is taking place
			if(self.startColumn.modules.edit){
				self.startColumn.modules.edit.blocked = true;
			}
			
			self.startX = typeof e.clientX === "undefined" ? e.touches[0].clientX : e.clientX;
			self.latestX = self.startX;
			self.startWidth = column.getWidth();
			
			document.body.addEventListener("mousemove", mouseMove);
			document.body.addEventListener("mouseup", mouseUp);
			handle.addEventListener("touchmove", mouseMove, {passive: true});
			handle.addEventListener("touchend", mouseUp);
		}
	}

	class ResizeRows extends Module{

		static moduleName = "resizeRows";

		constructor(table){
			super(table);

			this.startColumn = false;
			this.startY = false;
			this.startHeight = false;
			this.handle = null;
			this.prevHandle = null;

			this.registerTableOption("resizableRows", false); //resizable rows
			this.registerTableOption("resizableRowGuide", false);
		}

		initialize(){
			if(this.table.options.resizableRows){
				this.subscribe("row-layout-after", this.initializeRow.bind(this));
			}
		}

		initializeRow(row){
			var self = this,
			rowEl = row.getElement();

			var handle = document.createElement('div');
			handle.className = "tabulator-row-resize-handle";

			var prevHandle = document.createElement('div');
			prevHandle.className = "tabulator-row-resize-handle prev";

			handle.addEventListener("click", function(e){
				e.stopPropagation();
			});

			var handleDown = function(e){
				self.startRow = row;
				self._mouseDown(e, row, handle);
			};

			handle.addEventListener("mousedown", handleDown);
			handle.addEventListener("touchstart", handleDown, {passive: true});

			prevHandle.addEventListener("click", function(e){
				e.stopPropagation();
			});

			var prevHandleDown =  function(e){
				var prevRow = self.table.rowManager.prevDisplayRow(row);

				if(prevRow){
					self.startRow = prevRow;
					self._mouseDown(e, prevRow, prevHandle);
				}
			};

			prevHandle.addEventListener("mousedown",prevHandleDown);
			prevHandle.addEventListener("touchstart",prevHandleDown, {passive: true});

			rowEl.appendChild(handle);
			rowEl.appendChild(prevHandle);
		}

		resize(e, row) {
			row.setHeight(this.startHeight + ((typeof e.screenY === "undefined" ? e.touches[0].screenY : e.screenY) - this.startY));
		}

		calcGuidePosition(e, row, handle) {
			var mouseY = typeof e.screenY === "undefined" ? e.touches[0].screenY : e.screenY,
			handleY = handle.getBoundingClientRect().y - this.table.element.getBoundingClientRect().y,
			tableY = this.table.element.getBoundingClientRect().y,
			rowY = row.element.getBoundingClientRect().top - tableY,
			mouseDiff = mouseY - this.startY;

			return Math.max(handleY + mouseDiff, rowY);
		}

		_mouseDown(e, row, handle){
			var self = this,
			guideEl;

			self.dispatchExternal("rowResizing", row.getComponent());

			if(self.table.options.resizableRowGuide){
				guideEl = document.createElement("span");
				guideEl.classList.add('tabulator-row-resize-guide');
				self.table.element.appendChild(guideEl);
				setTimeout(() => {
					guideEl.style.top = self.calcGuidePosition(e, row, handle) + "px";
				});
			}

			self.table.element.classList.add("tabulator-block-select");

			function mouseMove(e){
				if(self.table.options.resizableRowGuide){
					guideEl.style.top = self.calcGuidePosition(e, row, handle) + "px";
				}else {
					self.resize(e, row);
				}
			}

			function mouseUp(e){
				if(self.table.options.resizableRowGuide){
					self.resize(e, row);
					guideEl.remove();
				}

				// //block editor from taking action while resizing is taking place
				// if(self.startColumn.modules.edit){
				// 	self.startColumn.modules.edit.blocked = false;
				// }

				document.body.removeEventListener("mouseup", mouseMove);
				document.body.removeEventListener("mousemove", mouseMove);

				handle.removeEventListener("touchmove", mouseMove);
				handle.removeEventListener("touchend", mouseUp);

				self.table.element.classList.remove("tabulator-block-select");

				self.dispatchExternal("rowResized", row.getComponent());
			}

			e.stopPropagation(); //prevent resize from interfering with movable columns

			//block editor from taking action while resizing is taking place
			// if(self.startColumn.modules.edit){
			// 	self.startColumn.modules.edit.blocked = true;
			// }

			self.startY = typeof e.screenY === "undefined" ? e.touches[0].screenY : e.screenY;
			self.startHeight = row.getHeight();

			document.body.addEventListener("mousemove", mouseMove);
			document.body.addEventListener("mouseup", mouseUp);

			handle.addEventListener("touchmove", mouseMove, {passive: true});
			handle.addEventListener("touchend", mouseUp);
		}
	}

	class ResizeTable extends Module{

		static moduleName = "resizeTable";
		
		constructor(table){
			super(table);
			
			this.binding = false;
			this.visibilityObserver = false;
			this.resizeObserver = false;
			this.containerObserver = false;
			
			this.tableHeight = 0;
			this.tableWidth = 0;
			this.containerHeight = 0;
			this.containerWidth = 0;
			
			this.autoResize = false;
			
			this.visible = false;
			
			this.initialized = false;
			this.initialRedraw = false;
			
			this.registerTableOption("autoResize", true); //auto resize table
		}
		
		initialize(){
			if(this.table.options.autoResize){
				var table = this.table,
				tableStyle;
				
				this.tableHeight = table.element.clientHeight;
				this.tableWidth = table.element.clientWidth;
				
				if(table.element.parentNode){
					this.containerHeight = table.element.parentNode.clientHeight;
					this.containerWidth = table.element.parentNode.clientWidth;
				}
				
				if(typeof IntersectionObserver !== "undefined" && typeof ResizeObserver !== "undefined" && table.rowManager.getRenderMode() === "virtual"){
					
					this.initializeVisibilityObserver();
					
					this.autoResize = true;
					
					this.resizeObserver = new ResizeObserver((entry) => {
						if(!table.browserMobile || (table.browserMobile && (!table.modules.edit || (table.modules.edit && !table.modules.edit.currentCell)))){
							
							var nodeHeight = Math.floor(entry[0].contentRect.height);
							var nodeWidth = Math.floor(entry[0].contentRect.width);
							
							if(this.tableHeight != nodeHeight || this.tableWidth != nodeWidth){
								this.tableHeight = nodeHeight;
								this.tableWidth = nodeWidth;
								
								if(table.element.parentNode){
									this.containerHeight = table.element.parentNode.clientHeight;
									this.containerWidth = table.element.parentNode.clientWidth;
								}
								
								this.redrawTable();
							}
						}
					});
					
					this.resizeObserver.observe(table.element);
					
					tableStyle = window.getComputedStyle(table.element);
					
					if(this.table.element.parentNode && !this.table.rowManager.fixedHeight && (tableStyle.getPropertyValue("max-height") || tableStyle.getPropertyValue("min-height"))){
						
						this.containerObserver = new ResizeObserver((entry) => {
							if(!table.browserMobile || (table.browserMobile && (!table.modules.edit || (table.modules.edit && !table.modules.edit.currentCell)))){
								
								var nodeHeight = Math.floor(entry[0].contentRect.height);
								var nodeWidth = Math.floor(entry[0].contentRect.width);
								
								if(this.containerHeight != nodeHeight || this.containerWidth != nodeWidth){
									this.containerHeight = nodeHeight;
									this.containerWidth = nodeWidth;
									this.tableHeight = table.element.clientHeight;
									this.tableWidth = table.element.clientWidth;
								}
								
								this.redrawTable();
							}
						});
						
						this.containerObserver.observe(this.table.element.parentNode);
					}
					
					this.subscribe("table-resize", this.tableResized.bind(this));
					
				}else {
					this.binding = function(){
						if(!table.browserMobile || (table.browserMobile && (!table.modules.edit || (table.modules.edit && !table.modules.edit.currentCell)))){
							table.columnManager.rerenderColumns(true);
							table.redraw();
						}
					};
					
					window.addEventListener("resize", this.binding);
				}
				
				this.subscribe("table-destroy", this.clearBindings.bind(this));
			}
		}
		
		initializeVisibilityObserver(){
			this.visibilityObserver = new IntersectionObserver((entries) => {
				this.visible = entries[0].isIntersecting;
				
				if(!this.initialized){
					this.initialized = true;
					this.initialRedraw = !this.visible;
				}else {
					if(this.visible){
						this.redrawTable(this.initialRedraw);
						this.initialRedraw = false;
					}
				}
			});
			
			this.visibilityObserver.observe(this.table.element);
		}
		
		redrawTable(force){
			if(this.initialized && this.visible){
				this.table.columnManager.rerenderColumns(true);
				this.table.redraw(force);
			}
		}
		
		tableResized(){
			this.table.rowManager.redraw();
		}
		
		clearBindings(){
			if(this.binding){
				window.removeEventListener("resize", this.binding);
			}
			
			if(this.resizeObserver){
				this.resizeObserver.unobserve(this.table.element);
			}
			
			if(this.visibilityObserver){
				this.visibilityObserver.unobserve(this.table.element);
			}
			
			if(this.containerObserver){
				this.containerObserver.unobserve(this.table.element.parentNode);
			}
		}
	}

	function responsiveCollapse(cell, formatterParams, onRendered){
		var el = document.createElement("div"),
		config = cell.getRow()._row.modules.responsiveLayout;

		el.classList.add("tabulator-responsive-collapse-toggle");
		
		el.innerHTML = `<svg class='tabulator-responsive-collapse-toggle-open' viewbox="0 0 24 24">
  <line x1="7" y1="12" x2="17" y2="12" fill="none" stroke-width="3" stroke-linecap="round" />
  <line y1="7" x1="12" y2="17" x2="12" fill="none" stroke-width="3" stroke-linecap="round" />
</svg>

<svg class='tabulator-responsive-collapse-toggle-close' viewbox="0 0 24 24">
  <line x1="7" y1="12" x2="17" y2="12"  fill="none" stroke-width="3" stroke-linecap="round" />
</svg>`;

		cell.getElement().classList.add("tabulator-row-handle");

		function toggleList(isOpen){
			var collapseEl = config.element;

			config.open = isOpen;

			if(collapseEl){

				if(config.open){
					el.classList.add("open");
					collapseEl.style.display = '';
				}else {
					el.classList.remove("open");
					collapseEl.style.display = 'none';
				}
			}
		}

		el.addEventListener("click", function(e){
			e.stopImmediatePropagation();
			toggleList(!config.open);
			cell.getTable().rowManager.adjustTableSize();
		});

		toggleList(config.open);

		return el;
	}

	var extensions$2 = {
		format:{
			formatters:{
				responsiveCollapse:responsiveCollapse,
			}
		}
	};

	class ResponsiveLayout extends Module{

		static moduleName = "responsiveLayout";
		static moduleExtensions = extensions$2;

		constructor(table){
			super(table);

			this.columns = [];
			this.hiddenColumns = [];
			this.mode = "";
			this.index = 0;
			this.collapseFormatter = [];
			this.collapseStartOpen = true;
			this.collapseHandleColumn = false;

			this.registerTableOption("responsiveLayout", false); //responsive layout flags
			this.registerTableOption("responsiveLayoutCollapseStartOpen", true); //start showing collapsed data
			this.registerTableOption("responsiveLayoutCollapseUseFormatters", true); //responsive layout collapse formatter
			this.registerTableOption("responsiveLayoutCollapseFormatter", false); //responsive layout collapse formatter

			this.registerColumnOption("responsive");
		}

		//generate responsive columns list
		initialize(){
			if(this.table.options.responsiveLayout){
				this.subscribe("column-layout", this.initializeColumn.bind(this));
				this.subscribe("column-show", this.updateColumnVisibility.bind(this));
				this.subscribe("column-hide", this.updateColumnVisibility.bind(this));
				this.subscribe("columns-loaded", this.initializeResponsivity.bind(this));
				this.subscribe("column-moved", this.initializeResponsivity.bind(this));
				this.subscribe("column-add", this.initializeResponsivity.bind(this));
				this.subscribe("column-delete", this.initializeResponsivity.bind(this));

				this.subscribe("table-redrawing", this.tableRedraw.bind(this));
				
				if(this.table.options.responsiveLayout === "collapse"){
					this.subscribe("row-data-changed", this.generateCollapsedRowContent.bind(this));
					this.subscribe("row-init", this.initializeRow.bind(this));
					this.subscribe("row-layout", this.layoutRow.bind(this));
				}
			}
		}

		tableRedraw(force){
			if(["fitColumns", "fitDataStretch"].indexOf(this.layoutMode()) === -1){
				if(!force){
					this.update();
				}
			}
		}

		initializeResponsivity(){
			var columns = [];

			this.mode = this.table.options.responsiveLayout;
			this.collapseFormatter = this.table.options.responsiveLayoutCollapseFormatter || this.formatCollapsedData;
			this.collapseStartOpen = this.table.options.responsiveLayoutCollapseStartOpen;
			this.hiddenColumns = [];

			if(this.collapseFormatter){
				this.collapseFormatter = this.collapseFormatter.bind(this.table);
			}

			//determine level of responsivity for each column
			this.table.columnManager.columnsByIndex.forEach((column, i) => {
				if(column.modules.responsive){
					if(column.modules.responsive.order && column.modules.responsive.visible){
						column.modules.responsive.index = i;
						columns.push(column);

						if(!column.visible && this.mode === "collapse"){
							this.hiddenColumns.push(column);
						}
					}
				}
			});

			//sort list by responsivity
			columns = columns.reverse();
			columns = columns.sort((a, b) => {
				var diff = b.modules.responsive.order - a.modules.responsive.order;
				return diff || (b.modules.responsive.index - a.modules.responsive.index);
			});

			this.columns = columns;

			if(this.mode === "collapse"){
				this.generateCollapsedContent();
			}

			//assign collapse column
			for (let col of this.table.columnManager.columnsByIndex){
				if(col.definition.formatter == "responsiveCollapse"){
					this.collapseHandleColumn = col;
					break;
				}
			}

			if(this.collapseHandleColumn){
				if(this.hiddenColumns.length){
					this.collapseHandleColumn.show();
				}else {
					this.collapseHandleColumn.hide();
				}
			}
		}

		//define layout information
		initializeColumn(column){
			var def = column.getDefinition();

			column.modules.responsive = {order: typeof def.responsive === "undefined" ? 1 : def.responsive, visible:def.visible === false ? false : true};
		}

		initializeRow(row){
			var el;

			if(row.type !== "calc"){
				el = document.createElement("div");
				el.classList.add("tabulator-responsive-collapse");

				row.modules.responsiveLayout = {
					element:el,
					open:this.collapseStartOpen,
				};

				if(!this.collapseStartOpen){
					el.style.display = 'none';
				}
			}
		}

		layoutRow(row){
			var rowEl = row.getElement();

			if(row.modules.responsiveLayout){
				rowEl.appendChild(row.modules.responsiveLayout.element);
				this.generateCollapsedRowContent(row);
			}
		}

		//update column visibility
		updateColumnVisibility(column, responsiveToggle){
			if(!responsiveToggle && column.modules.responsive){
				column.modules.responsive.visible = column.visible;
				this.initializeResponsivity();
			}
		}

		hideColumn(column){
			var colCount = this.hiddenColumns.length;

			column.hide(false, true);

			if(this.mode === "collapse"){
				this.hiddenColumns.unshift(column);
				this.generateCollapsedContent();

				if(this.collapseHandleColumn && !colCount){
					this.collapseHandleColumn.show();
				}
			}
		}

		showColumn(column){
			var index;

			column.show(false, true);
			//set column width to prevent calculation loops on uninitialized columns
			column.setWidth(column.getWidth());

			if(this.mode === "collapse"){
				index = this.hiddenColumns.indexOf(column);

				if(index > -1){
					this.hiddenColumns.splice(index, 1);
				}

				this.generateCollapsedContent();

				if(this.collapseHandleColumn && !this.hiddenColumns.length){
					this.collapseHandleColumn.hide();
				}
			}
		}

		//redraw columns to fit space
		update(){
			var working = true;

			while(working){

				let width = this.table.modules.layout.getMode() == "fitColumns" ? this.table.columnManager.getFlexBaseWidth() : this.table.columnManager.getWidth();

				let diff = (this.table.options.headerVisible ? this.table.columnManager.element.clientWidth : this.table.element.clientWidth) - width;

				if(diff < 0){
					//table is too wide
					let column = this.columns[this.index];

					if(column){
						this.hideColumn(column);
						this.index ++;
					}else {
						working = false;
					}

				}else {

					//table has spare space
					let column = this.columns[this.index -1];

					if(column){
						if(diff > 0){
							if(diff >= column.getWidth()){
								this.showColumn(column);
								this.index --;
							}else {
								working = false;
							}
						}else {
							working = false;
						}
					}else {
						working = false;
					}
				}

				if(!this.table.rowManager.activeRowsCount){
					this.table.rowManager.renderEmptyScroll();
				}
			}
		}

		generateCollapsedContent(){
			var rows = this.table.rowManager.getDisplayRows();

			rows.forEach((row) => {
				this.generateCollapsedRowContent(row);
			});
		}

		generateCollapsedRowContent(row){
			var el, contents;

			if(row.modules.responsiveLayout){
				el = row.modules.responsiveLayout.element;

				while(el.firstChild) el.removeChild(el.firstChild);

				contents = this.collapseFormatter(this.generateCollapsedRowData(row));
				if(contents){
					el.appendChild(contents);
				}
				row.calcHeight(true);
			}
		}

		generateCollapsedRowData(row){
			var data = row.getData(),
			output = [],
			mockCellComponent;

			this.hiddenColumns.forEach((column) => {
				var value = column.getFieldValue(data);

				if(column.definition.title && column.field){
					if(column.modules.format && this.table.options.responsiveLayoutCollapseUseFormatters){

						mockCellComponent = {
							value:false,
							data:{},
							getValue:function(){
								return value;
							},
							getData:function(){
								return data;
							},
							getType:function(){
								return "cell";
							},
							getElement:function(){
								return document.createElement("div");
							},
							getRow:function(){
								return row.getComponent();
							},
							getColumn:function(){
								return column.getComponent();
							},
							getTable:() => {
								return this.table;
							},
						};

						function onRendered(callback){
							callback();
						}

						output.push({
							field: column.field,
							title: column.definition.title,
							value: column.modules.format.formatter.call(this.table.modules.format, mockCellComponent, column.modules.format.params, onRendered)
						});
					}else {
						output.push({
							field: column.field,
							title: column.definition.title,
							value: value
						});
					}
				}
			});

			return output;
		}

		formatCollapsedData(data){
			var list = document.createElement("table");

			data.forEach((item) => {
				var row = document.createElement("tr");
				var titleData = document.createElement("td");
				var valueData = document.createElement("td");
				var node_content;

				var titleHighlight = document.createElement("strong");
				titleData.appendChild(titleHighlight);
				
				this.modules.localize.bind("columns|" + item.field, function(text){
					titleHighlight.innerHTML = text || item.title;
				});

				if(item.value instanceof Node){
					node_content = document.createElement("div");
					node_content.appendChild(item.value);
					valueData.appendChild(node_content);
				}else {
					valueData.innerHTML = item.value;
				}

				row.appendChild(titleData);
				row.appendChild(valueData);
				list.appendChild(row);
			});

			return Object.keys(data).length ? list : "";
		}
	}

	function rowSelection(cell, formatterParams, onRendered){
		var checkbox = document.createElement("input");
		var blocked = false;

		checkbox.type = 'checkbox';

		checkbox.setAttribute("aria-label", "Select Row");
		
		if(this.table.modExists("selectRow", true)){

			checkbox.addEventListener("click", (e) => {
				e.stopPropagation();
			});

			if(typeof cell.getRow == 'function'){
				var row = cell.getRow();

				if(row instanceof RowComponent){

					checkbox.addEventListener("change", (e) => {
						if(this.table.options.selectableRowsRangeMode === "click"){
							if(!blocked){
								row.toggleSelect();
							}else {
								blocked = false;
							}
						}else {
							row.toggleSelect();
						}
					});

					if(this.table.options.selectableRowsRangeMode === "click"){
						checkbox.addEventListener("click", (e) => {
							blocked = true;
							this.table.modules.selectRow.handleComplexRowClick(row._row, e);
						});
					}

					checkbox.checked = row.isSelected && row.isSelected();
					this.table.modules.selectRow.registerRowSelectCheckbox(row, checkbox);
				}else {
					checkbox = "";
				}
			}else {
				checkbox.addEventListener("change", (e) => {
					if(this.table.modules.selectRow.selectedRows.length){
						this.table.deselectRow();
					}else {
						this.table.selectRow(formatterParams.rowRange);
					}
				});

				this.table.modules.selectRow.registerHeaderSelectCheckbox(checkbox);
			}
		}

		return checkbox;
	}

	var extensions$1 = {
		format:{
			formatters:{
				rowSelection:rowSelection,
			}
		}
	};

	class SelectRow extends Module{

		static moduleName = "selectRow";
		static moduleExtensions = extensions$1;
		
		constructor(table){
			super(table);
			
			this.selecting = false; //flag selecting in progress
			this.lastClickedRow = false; //last clicked row
			this.selectPrev = []; //hold previously selected element for drag drop selection
			this.selectedRows = []; //hold selected rows
			this.headerCheckboxElement = null; // hold header select element
			
			this.registerTableOption("selectableRows", "highlight"); //highlight rows on hover
			this.registerTableOption("selectableRowsRangeMode", "drag");  //highlight rows on hover
			this.registerTableOption("selectableRowsRollingSelection", true); //roll selection once maximum number of selectable rows is reached
			this.registerTableOption("selectableRowsPersistence", true); // maintain selection when table view is updated
			this.registerTableOption("selectableRowsCheck", function(data, row){return true;}); //check whether row is selectable
			
			this.registerTableFunction("selectRow", this.selectRows.bind(this));
			this.registerTableFunction("deselectRow", this.deselectRows.bind(this));
			this.registerTableFunction("toggleSelectRow", this.toggleRow.bind(this));
			this.registerTableFunction("getSelectedRows", this.getSelectedRows.bind(this));
			this.registerTableFunction("getSelectedData", this.getSelectedData.bind(this));
			
			//register component functions
			this.registerComponentFunction("row", "select", this.selectRows.bind(this));
			this.registerComponentFunction("row", "deselect", this.deselectRows.bind(this));
			this.registerComponentFunction("row", "toggleSelect", this.toggleRow.bind(this));
			this.registerComponentFunction("row", "isSelected", this.isRowSelected.bind(this));
		}
		
		initialize(){

			this.deprecatedOptionsCheck();

			if(this.table.options.selectableRows === "highlight" && this.table.options.selectableRange){
				this.table.options.selectableRows = false;
			}

			if(this.table.options.selectableRows !== false){
				this.subscribe("row-init", this.initializeRow.bind(this));
				this.subscribe("row-deleting", this.rowDeleted.bind(this));
				this.subscribe("rows-wipe", this.clearSelectionData.bind(this));
				this.subscribe("rows-retrieve", this.rowRetrieve.bind(this));
				
				if(this.table.options.selectableRows && !this.table.options.selectableRowsPersistence){
					this.subscribe("data-refreshing", this.deselectRows.bind(this));
				}
			}
		}

		deprecatedOptionsCheck(){
			// this.deprecationCheck("selectable", "selectableRows", true);
			// this.deprecationCheck("selectableRollingSelection", "selectableRowsRollingSelection", true);
			// this.deprecationCheck("selectableRangeMode", "selectableRowsRangeMode", true);
			// this.deprecationCheck("selectablePersistence", "selectableRowsPersistence", true);
			// this.deprecationCheck("selectableCheck", "selectableRowsCheck", true);
		}
		
		rowRetrieve(type, prevValue){
			return type === "selected" ? this.selectedRows : prevValue;
		}
		
		rowDeleted(row){
			this._deselectRow(row, true);
		}
		
		clearSelectionData(silent){
			var prevSelected = this.selectedRows.length;

			this.selecting = false;
			this.lastClickedRow = false;
			this.selectPrev = [];
			this.selectedRows = [];
			
			if(prevSelected && silent !== true){
				this._rowSelectionChanged();
			}
		}
		
		initializeRow(row){
			var self = this,
			selectable = self.checkRowSelectability(row),
			element = row.getElement();
			
			// trigger end of row selection
			var endSelect = function(){
				
				setTimeout(function(){
					self.selecting = false;
				}, 50);
				
				document.body.removeEventListener("mouseup", endSelect);
			};
			
			row.modules.select = {selected:false};

			element.classList.toggle("tabulator-selectable", selectable);
			element.classList.toggle("tabulator-unselectable", !selectable);
			
			//set row selection class
			if(self.checkRowSelectability(row)){			
				if(self.table.options.selectableRows && self.table.options.selectableRows != "highlight"){
					if(self.table.options.selectableRowsRangeMode === "click"){
						element.addEventListener("click", this.handleComplexRowClick.bind(this, row));
					}else {
						element.addEventListener("click", function(e){
							if(!self.table.modExists("edit") || !self.table.modules.edit.getCurrentCell()){
								self.table._clearSelection();
							}
							
							if(!self.selecting){
								self.toggleRow(row);
							}
						});
						
						element.addEventListener("mousedown", function(e){
							if(e.shiftKey){
								self.table._clearSelection();
								
								self.selecting = true;
								
								self.selectPrev = [];
								
								document.body.addEventListener("mouseup", endSelect);
								document.body.addEventListener("keyup", endSelect);
								
								self.toggleRow(row);
								
								return false;
							}
						});
						
						element.addEventListener("mouseenter", function(e){
							if(self.selecting){
								self.table._clearSelection();
								self.toggleRow(row);
								
								if(self.selectPrev[1] == row){
									self.toggleRow(self.selectPrev[0]);
								}
							}
						});
						
						element.addEventListener("mouseout", function(e){
							if(self.selecting){
								self.table._clearSelection();
								self.selectPrev.unshift(row);
							}
						});
					}
				}
			}
		}
		
		handleComplexRowClick(row, e){
			if(e.shiftKey){
				this.table._clearSelection();
				this.lastClickedRow = this.lastClickedRow || row;
				
				var lastClickedRowIdx = this.table.rowManager.getDisplayRowIndex(this.lastClickedRow);
				var rowIdx = this.table.rowManager.getDisplayRowIndex(row);
				
				var fromRowIdx = lastClickedRowIdx <= rowIdx ? lastClickedRowIdx : rowIdx;
				var toRowIdx = lastClickedRowIdx >= rowIdx ? lastClickedRowIdx : rowIdx;
				
				var rows = this.table.rowManager.getDisplayRows().slice(0);
				var toggledRows = rows.splice(fromRowIdx, toRowIdx - fromRowIdx + 1);
				
				if(e.ctrlKey || e.metaKey){
					toggledRows.forEach((toggledRow)=>{
						if(toggledRow !== this.lastClickedRow){
							
							if(this.table.options.selectableRows !== true && !this.isRowSelected(row)){
								if(this.selectedRows.length < this.table.options.selectableRows){
									this.toggleRow(toggledRow);
								}
							}else {
								this.toggleRow(toggledRow);
							}
						}
					});
					this.lastClickedRow = row;
				}else {
					this.deselectRows(undefined, true);
					
					if(this.table.options.selectableRows !== true){
						if(toggledRows.length > this.table.options.selectableRows){
							toggledRows = toggledRows.slice(0, this.table.options.selectableRows);
						}
					}
					
					this.selectRows(toggledRows);
				}
				this.table._clearSelection();
			}
			else if(e.ctrlKey || e.metaKey){
				this.toggleRow(row);
				this.lastClickedRow = row;
			}else {
				this.deselectRows(undefined, true);
				this.selectRows(row);
				this.lastClickedRow = row;
			}
		}

		checkRowSelectability(row){
			if(row && row.type === "row"){
				return this.table.options.selectableRowsCheck.call(this.table, row.getComponent());
			}

			return false;
		}
		
		//toggle row selection
		toggleRow(row){
			if(this.checkRowSelectability(row)){
				if(row.modules.select && row.modules.select.selected){
					this._deselectRow(row);
				}else {
					this._selectRow(row);
				}
			}
		}
		
		//select a number of rows
		selectRows(rows){
			var changes = [], 
			rowMatch, change;
			
			switch(typeof rows){
				case "undefined":
					rowMatch = this.table.rowManager.rows;
					break;
				
				case "number":
					rowMatch = this.table.rowManager.findRow(rows);
					break;
					
				case "string":
					rowMatch = this.table.rowManager.findRow(rows);
				
					if(!rowMatch){
						rowMatch = this.table.rowManager.getRows(rows);
					}
					break;
				
				default:
					rowMatch = rows;
					break;
			}

			if(Array.isArray(rowMatch)){
				if(rowMatch.length){
					rowMatch.forEach((row) => {
						change = this._selectRow(row, true, true);

						if(change){
							changes.push(change);
						}
					});

					this._rowSelectionChanged(false, changes);
				}
			}else {
				if(rowMatch){
					this._selectRow(rowMatch, false, true);
				}
			}	
		}
		
		//select an individual row
		_selectRow(rowInfo, silent, force){
			//handle max row count
			if(!isNaN(this.table.options.selectableRows) && this.table.options.selectableRows !== true && !force){
				if(this.selectedRows.length >= this.table.options.selectableRows){
					if(this.table.options.selectableRowsRollingSelection){
						this._deselectRow(this.selectedRows[0]);
					}else {
						return false;
					}
				}
			}
			
			var row = this.table.rowManager.findRow(rowInfo);
			
			if(row){
				if(this.selectedRows.indexOf(row) == -1){
					row.getElement().classList.add("tabulator-selected");
					if(!row.modules.select){
						row.modules.select = {};
					}
					
					row.modules.select.selected = true;
					if(row.modules.select.checkboxEl){
						row.modules.select.checkboxEl.checked = true;
					}
					
					this.selectedRows.push(row);
					
					if(this.table.options.dataTreeSelectPropagate){
						this.childRowSelection(row, true);
					}
					
					this.dispatchExternal("rowSelected", row.getComponent());
					
					this._rowSelectionChanged(silent, row);

					return row;
				}
			}else {
				if(!silent){
					console.warn("Selection Error - No such row found, ignoring selection:" + rowInfo);
				}
			}
		}
		
		isRowSelected(row){
			return this.selectedRows.indexOf(row) !== -1;
		}
		
		//deselect a number of rows
		deselectRows(rows, silent){
			var changes = [], 
			rowMatch, change;
			
			switch(typeof rows){
				case "undefined":
					rowMatch = Object.assign([], this.selectedRows);
					break;

				case "number":
					rowMatch = this.table.rowManager.findRow(rows);
					break;
				
				case "string":
					rowMatch = this.table.rowManager.findRow(rows);
				
					if(!rowMatch){
						rowMatch = this.table.rowManager.getRows(rows);
					}
					break;
				
				default:
					rowMatch = rows;
					break;
			}

			if(Array.isArray(rowMatch)){
				if(rowMatch.length){
					rowMatch.forEach((row) => {
						change = this._deselectRow(row, true, true);

						if(change){
							changes.push(change);
						}
					});

					this._rowSelectionChanged(silent, [], changes);
				}
			}else {
				if(rowMatch){
					this._deselectRow(rowMatch, silent, true);
				}
			}	
		}
		
		//deselect an individual row
		_deselectRow(rowInfo, silent){
			var self = this,
			row = self.table.rowManager.findRow(rowInfo),
			index, element;
			
			if(row){
				index = self.selectedRows.findIndex(function(selectedRow){
					return selectedRow == row;
				});
				
				if(index > -1){

					element = row.getElement();
					
					if(element){
						element.classList.remove("tabulator-selected");
					}
					
					if(!row.modules.select){
						row.modules.select = {};
					}
					
					row.modules.select.selected = false;
					if(row.modules.select.checkboxEl){
						row.modules.select.checkboxEl.checked = false;
					}
					self.selectedRows.splice(index, 1);
					
					if(this.table.options.dataTreeSelectPropagate){
						this.childRowSelection(row, false);
					}
					
					this.dispatchExternal("rowDeselected", row.getComponent());
					
					self._rowSelectionChanged(silent, undefined, row);

					return row;
				}
			}else {
				if(!silent){
					console.warn("Deselection Error - No such row found, ignoring selection:" + rowInfo);
				}
			}
		}
		
		getSelectedData(){
			var data = [];
			
			this.selectedRows.forEach(function(row){
				data.push(row.getData());
			});
			
			return data;
		}
		
		getSelectedRows(){
			var rows = [];
			
			this.selectedRows.forEach(function(row){
				rows.push(row.getComponent());
			});
			
			return rows;
		}
		
		_rowSelectionChanged(silent, selected = [], deselected = []){
			if(this.headerCheckboxElement){
				if(this.selectedRows.length === 0){
					this.headerCheckboxElement.checked = false;
					this.headerCheckboxElement.indeterminate = false;
				} else if(this.table.rowManager.rows.length === this.selectedRows.length){
					this.headerCheckboxElement.checked = true;
					this.headerCheckboxElement.indeterminate = false;
				} else {
					this.headerCheckboxElement.indeterminate = true;
					this.headerCheckboxElement.checked = false;
				}
			}
			
			if(!silent){
				if(!Array.isArray(selected)){
					selected = [selected];
				}

				selected = selected.map(row => row.getComponent());

				if(!Array.isArray(deselected)){
					deselected = [deselected];
				}

				deselected = deselected.map(row => row.getComponent());

				this.dispatchExternal("rowSelectionChanged", this.getSelectedData(), this.getSelectedRows(), selected, deselected);
			}
		}
		
		registerRowSelectCheckbox (row, element) {
			if(!row._row.modules.select){
				row._row.modules.select = {};
			}
			
			row._row.modules.select.checkboxEl = element;
		}
		
		registerHeaderSelectCheckbox (element) {
			this.headerCheckboxElement = element;
		}
		
		childRowSelection(row, select){
			var children = this.table.modules.dataTree.getChildren(row, true, true);
			
			if(select){
				for(let child of children){
					this._selectRow(child, true);
				}
			}else {
				for(let child of children){
					this._deselectRow(child, true);
				}
			}
		}
	}

	class RangeComponent {
		constructor(range) {
			this._range = range;

			return new Proxy(this, {
				get: function (target, name, receiver) {
					if (typeof target[name] !== "undefined") {
						return target[name];
					} else {
						return target._range.table.componentFunctionBinder.handle("range", target._range, name);
					}
				},
			});
		}

		getElement() {
			return this._range.element;
		}

		getData() {
			return this._range.getData();
		}

		getCells() {
			return this._range.getCells(true, true);
		}

		getStructuredCells() {
			return this._range.getStructuredCells();
		}

		getRows() {
			return this._range.getRows().map((row) => row.getComponent());
		}

		getColumns() {
			return this._range.getColumns().map((column) => column.getComponent());
		}
		
		getBounds() {
			return this._range.getBounds();
		}

		getTopEdge() {
			return this._range.top;
		}

		getBottomEdge() {
			return this._range.bottom;
		}

		getLeftEdge() {
			return this._range.left;
		}

		getRightEdge() {
			return this._range.right;
		}

		setBounds(start, end){
			if(this._range.destroyedGuard("setBounds")){
				this._range.setBounds(start ? start._cell : start, end ? end._cell : end);
			}
		}

		setStartBound(start){
			if(this._range.destroyedGuard("setStartBound")){
				this._range.setEndBound(start ? start._cell : start);
				this._range.rangeManager.layoutElement();
			}
		}

		setEndBound(end){
			if(this._range.destroyedGuard("setEndBound")){
				this._range.setEndBound(end ? end._cell : end);
				this._range.rangeManager.layoutElement();
			}
		}

		clearValues(){
			if(this._range.destroyedGuard("clearValues")){
				this._range.clearValues();
			}
		}

		remove(){
			if(this._range.destroyedGuard("remove")){
				this._range.destroy(true);
			}
		}
	}

	class Range extends CoreFeature{
		constructor(table, rangeManager, start, end) {
			super(table);
			
			this.rangeManager = rangeManager;
			this.element = null;
			this.initialized = false;
			this.initializing = {
				start:false,
				end:false,
			};
			this.destroyed = false;
			
			this.top = 0;
			this.bottom = 0;
			this.left = 0;
			this.right = 0;
			
			this.table = table;
			this.start = {row:0, col:0};
			this.end = {row:0, col:0};

			if(this.rangeManager.rowHeader){
				this.left = 1;
				this.right = 1;
				this.start.col = 1;
				this.end.col = 1;
			}
			
			this.initElement();
			
			setTimeout(() => {
				this.initBounds(start, end);
			});
		}
		
		initElement(){
			this.element = document.createElement("div");
			this.element.classList.add("tabulator-range");
		}
		
		initBounds(start, end){
			this._updateMinMax();
			
			if(start){
				this.setBounds(start, end || start);
			}
		}
		
		///////////////////////////////////
		///////   Boundary Setup    ///////
		///////////////////////////////////
		
		setStart(row, col) {
			if(this.start.row !== row || this.start.col !== col){
				this.start.row = row;
				this.start.col = col;
				
				this.initializing.start = true;
				this._updateMinMax();
			}
		}
		
		setEnd(row, col) {
			if(this.end.row !== row || this.end.col !== col){
				this.end.row = row;
				this.end.col = col;
				
				this.initializing.end = true;
				this._updateMinMax();
			}
		}
		
		setBounds(start, end, visibleRows){
			if(start){
				this.setStartBound(start);
			}
			
			this.setEndBound(end || start);
			this.rangeManager.layoutElement(visibleRows);
		}
		
		setStartBound(element){
			var row, col;
			
			if (element.type === "column") {
				if(this.rangeManager.columnSelection){
					this.setStart(0, element.getPosition() - 1);
				}
			}else {
				row = element.row.position - 1;
				col = element.column.getPosition() - 1;
				
				if (element.column === this.rangeManager.rowHeader) {
					this.setStart(row, 1);
				} else {
					this.setStart(row, col);
				}
			}
		}
		
		setEndBound(element){
			var rowsCount = this._getTableRows().length,
			row, col, isRowHeader;
			
			if (element.type === "column") {
				if(this.rangeManager.columnSelection){
					if (this.rangeManager.selecting === "column") {
						this.setEnd(rowsCount - 1, element.getPosition() - 1);
					} else if (this.rangeManager.selecting === "cell") {
						this.setEnd(0, element.getPosition() - 1);
					}
				}
			}else {
				row = element.row.position - 1;
				col = element.column.getPosition() - 1;
				isRowHeader = element.column === this.rangeManager.rowHeader;
				
				if (this.rangeManager.selecting === "row") {
					this.setEnd(row, this._getTableColumns().length - 1);
				} else if (this.rangeManager.selecting !== "row" && isRowHeader) {
					this.setEnd(row, 0);
				} else if (this.rangeManager.selecting === "column") {
					this.setEnd(rowsCount - 1, col);
				} else {
					this.setEnd(row, col);
				}
			}
		}
		
		_updateMinMax() {
			this.top = Math.min(this.start.row, this.end.row);
			this.bottom = Math.max(this.start.row, this.end.row);
			this.left = Math.min(this.start.col, this.end.col);
			this.right = Math.max(this.start.col, this.end.col);
			
			if(this.initialized){
				this.dispatchExternal("rangeChanged", this.getComponent());
			}else {
				if(this.initializing.start && this.initializing.end){
					this.initialized = true;
					this.dispatchExternal("rangeAdded", this.getComponent());
				}
			}
		}
		
		_getTableColumns() {
			return this.table.columnManager.getVisibleColumnsByIndex();
		}
		
		_getTableRows() {
			return this.table.rowManager.getDisplayRows().filter(row=> row.type === "row");
		}
		
		///////////////////////////////////
		///////      Rendering      ///////
		///////////////////////////////////
		
		layout() {
			var _vDomTop = this.table.rowManager.renderer.vDomTop,
			_vDomBottom = this.table.rowManager.renderer.vDomBottom,
			_vDomLeft = this.table.columnManager.renderer.leftCol,
			_vDomRight = this.table.columnManager.renderer.rightCol,		
			top, bottom, left, right, topLeftCell, bottomRightCell, topLeftCellEl, bottomRightCellEl, topLeftRowEl, bottomRightRowEl;

			if(this.table.options.renderHorizontal === "virtual" && this.rangeManager.rowHeader) {
				_vDomRight += 1;
			}
			
			if (_vDomTop == null) {
				_vDomTop = 0;
			}
			
			if (_vDomBottom == null) {
				_vDomBottom = Infinity;
			}
			
			if (_vDomLeft == null) {
				_vDomLeft = 0;
			}
			
			if (_vDomRight == null) {
				_vDomRight = Infinity;
			}
			
			if (this.overlaps(_vDomLeft, _vDomTop, _vDomRight, _vDomBottom)) {
				top = Math.max(this.top, _vDomTop);
				bottom = Math.min(this.bottom, _vDomBottom);
				left = Math.max(this.left, _vDomLeft);
				right = Math.min(this.right, _vDomRight);
				
				topLeftCell = this.rangeManager.getCell(top, left);
				bottomRightCell = this.rangeManager.getCell(bottom, right);
				topLeftCellEl = topLeftCell.getElement();
				bottomRightCellEl = bottomRightCell.getElement();
				topLeftRowEl = topLeftCell.row.getElement();
				bottomRightRowEl = bottomRightCell.row.getElement();
				
				this.element.classList.add("tabulator-range-active");
				// this.element.classList.toggle("tabulator-range-active", this === this.rangeManager.activeRange);

				if(this.table.rtl){
					this.element.style.right = topLeftRowEl.offsetWidth - topLeftCellEl.offsetLeft - topLeftCellEl.offsetWidth + "px";
					this.element.style.width = topLeftCellEl.offsetLeft + topLeftCellEl.offsetWidth - bottomRightCellEl.offsetLeft + "px";
				}else {
					this.element.style.left = topLeftRowEl.offsetLeft + topLeftCellEl.offsetLeft + "px";
					this.element.style.width = bottomRightCellEl.offsetLeft + bottomRightCellEl.offsetWidth - topLeftCellEl.offsetLeft + "px";
				}
				
				this.element.style.top = topLeftRowEl.offsetTop + "px";
				this.element.style.height = bottomRightRowEl.offsetTop + bottomRightRowEl.offsetHeight - topLeftRowEl.offsetTop + "px";
			}
		}
		
		atTopLeft(cell) {
			return cell.row.position - 1 === this.top && cell.column.getPosition() - 1 === this.left;
		}
		
		atBottomRight(cell) {
			return cell.row.position - 1 === this.bottom && cell.column.getPosition() - 1 === this.right;
		}
		
		occupies(cell) {
			return this.occupiesRow(cell.row) && this.occupiesColumn(cell.column);
		}
		
		occupiesRow(row) {
			return this.top <= row.position - 1 && row.position - 1 <= this.bottom;
		}
		
		occupiesColumn(col) {
			return this.left <= col.getPosition() - 1 && col.getPosition() - 1 <= this.right;
		}
		
		overlaps(left, top, right, bottom) {
			if ((this.left > right || left > this.right) || (this.top > bottom || top > this.bottom)){
				return false;
			}
			
			return true;
		}
		
		getData() {
			var data = [],
			rows = this.getRows(),
			columns = this.getColumns();
			
			rows.forEach((row) => {
				var rowData = row.getData(),
				result = {};
				
				columns.forEach((column) => {
					result[column.field] = rowData[column.field];
				});
				
				data.push(result);
			});
			
			return data;
		}
		
		getCells(structured, component) {
			var cells = [],
			rows = this.getRows(),
			columns = this.getColumns();
			
			if (structured) {
				cells = rows.map((row) => {
					var arr = [];
					
					row.getCells().forEach((cell) => {
						if (columns.includes(cell.column)) {
							arr.push(component ? cell.getComponent() : cell);
						}
					});
					
					return arr;
				});
			} else {
				rows.forEach((row) => {
					row.getCells().forEach((cell) => {
						if (columns.includes(cell.column)) {
							cells.push(component ? cell.getComponent() : cell);
						}
					});
				});
			}
			
			return cells;
		}
		
		getStructuredCells() {
			return this.getCells(true, true);
		}
		
		getRows() {
			return this._getTableRows().slice(this.top, this.bottom + 1);
		}
		
		getColumns() {
			return this._getTableColumns().slice(this.left, this.right + 1);
		}
		
		clearValues(){
			var cells = this.getCells();
			var clearValue = this.table.options.selectableRangeClearCellsValue;
			
			this.table.blockRedraw();
			
			cells.forEach((cell) => {
				cell.setValue(clearValue);
			});
			
			this.table.restoreRedraw();
			
		}
		
		getBounds(component){
			var cells = this.getCells(false, component),
			output = {
				start:null,
				end:null,
			};
			
			if(cells.length){
				output.start = cells[0];
				output.end = cells[cells.length - 1];
			}else {
				console.warn("No bounds defined on range");
			}
			
			return output;
		}
		
		getComponent() {
			if (!this.component) {
				this.component = new RangeComponent(this);
			}
			return this.component;
		}
		
		destroy(notify) {
			this.destroyed = true;
			
			this.element.remove();
			
			if(notify){
				this.rangeManager.rangeRemoved(this);
			}
			
			if(this.initialized){
				this.dispatchExternal("rangeRemoved", this.getComponent());
			}
		}
		
		destroyedGuard(func){
			if(this.destroyed){
				console.warn("You cannot call the "  + func + " function on a destroyed range");
			}
			
			return !this.destroyed;
		}
	}

	var bindings = {
		rangeJumpUp:["ctrl + 38", "meta + 38"],
		rangeJumpDown:["ctrl + 40", "meta + 40"],
		rangeJumpLeft:["ctrl + 37", "meta + 37"],
		rangeJumpRight:["ctrl + 39", "meta + 39"],
		rangeExpandUp:"shift + 38",
		rangeExpandDown:"shift + 40",
		rangeExpandLeft:"shift + 37",
		rangeExpandRight:"shift + 39",
		rangeExpandJumpUp:["ctrl + shift + 38", "meta + shift + 38"],
		rangeExpandJumpDown:["ctrl + shift + 40", "meta + shift + 40"],
		rangeExpandJumpLeft:["ctrl + shift + 37", "meta + shift + 37"],
		rangeExpandJumpRight:["ctrl + shift + 39", "meta + shift + 39"],
	};

	var actions = {
		rangeJumpLeft: function(e){
			this.dispatch("keybinding-nav-range", e, "left", true, false);
		},
		rangeJumpRight: function(e){
			this.dispatch("keybinding-nav-range", e, "right", true, false);
		},
		rangeJumpUp: function(e){
			this.dispatch("keybinding-nav-range", e, "up", true, false);
		},
		rangeJumpDown: function(e){
			this.dispatch("keybinding-nav-range", e, "down", true, false);
		},
		rangeExpandLeft: function(e){
			this.dispatch("keybinding-nav-range", e, "left", false, true);
		},
		rangeExpandRight: function(e){
			this.dispatch("keybinding-nav-range", e, "right", false, true);
		},
		rangeExpandUp: function(e){
			this.dispatch("keybinding-nav-range", e, "up", false, true);
		},
		rangeExpandDown: function(e){
			this.dispatch("keybinding-nav-range", e, "down", false, true);
		},
		rangeExpandJumpLeft: function(e){
			this.dispatch("keybinding-nav-range", e, "left", true, true);
		},
		rangeExpandJumpRight: function(e){
			this.dispatch("keybinding-nav-range", e, "right", true, true);
		},
		rangeExpandJumpUp: function(e){
			this.dispatch("keybinding-nav-range", e, "up", true, true);
		},
		rangeExpandJumpDown: function(e){
			this.dispatch("keybinding-nav-range", e, "down", true, true);
		},
	};

	var pasteActions = {
		range:function(data){
			var rows = [],
			range = this.table.modules.selectRange.activeRange,
			singleCell = false,
			bounds, startCell, startRow, rowWidth, dataLength;

			dataLength = data.length;
			
			if(range){
				bounds = range.getBounds();
				startCell = bounds.start;
				
				if(bounds.start === bounds.end){
					singleCell = true;
				}
				
				if(startCell){
					rows = this.table.rowManager.activeRows.slice();
					startRow = rows.indexOf(startCell.row);

					if(singleCell){
						rowWidth = data.length;
					}else {
						rowWidth = (rows.indexOf(bounds.end.row) - startRow) + 1;
					}
					
					
					if(startRow >-1){
						this.table.blockRedraw();
						
						rows = rows.slice(startRow, startRow + rowWidth);
						
						rows.forEach((row, i) => {
							row.updateData(data[i % dataLength]);
						});
						
						this.table.restoreRedraw();
					}
				}
			}
			
			return rows;
		}
	};

	var pasteParsers = {
		range:function(clipboard){
			var data = [],
			rows = [],
			range = this.table.modules.selectRange.activeRange,
			singleCell = false,
			bounds, startCell, colWidth, columnMap, startCol;
			
			if(range){
				bounds = range.getBounds();
				startCell = bounds.start;

				if(bounds.start === bounds.end){
					singleCell = true;
				}
				
				if(startCell){
					//get data from clipboard into array of columns and rows.
					clipboard = clipboard.split("\n");
					
					clipboard.forEach(function(row){
						data.push(row.split("\t"));
					});
					
					if(data.length){
						columnMap = this.table.columnManager.getVisibleColumnsByIndex();
						startCol = columnMap.indexOf(startCell.column);

						if(startCol > -1){
							if(singleCell){
								colWidth = data[0].length;
							}else {
								colWidth = (columnMap.indexOf(bounds.end.column) - startCol) + 1;
							}

							columnMap = columnMap.slice(startCol, startCol + colWidth);

							data.forEach((item) => {
								var row = {};
								var itemLength = item.length;

								columnMap.forEach(function(col, i){
									row[col.field] = item[i % itemLength];
								});
								
								rows.push(row);	
							});

							return rows;
						}				
					}
				}
			}
			
			return false;
		}
	};

	var columnLookups = {
		range:function(){
			var columns = this.modules.selectRange.selectedColumns();

			if(this.columnManager.rowHeader){
				columns.unshift(this.columnManager.rowHeader);
			}

			return columns;
		},
	};

	var rowLookups = {
		range:function(){
			return this.modules.selectRange.selectedRows();
		},
	};

	var extensions = {
		keybindings:{
			bindings:bindings,
			actions:actions
		},
		clipboard:{
			pasteActions:pasteActions,
			pasteParsers:pasteParsers
		},
		export:{
			columnLookups:columnLookups,
			rowLookups:rowLookups,
		}
	};

	class SelectRange extends Module {
		
		static moduleName = "selectRange";
		static moduleInitOrder = 1;
		static moduleExtensions = extensions;
		
		constructor(table) {
			super(table);
			
			this.selecting = "cell";
			this.mousedown = false;
			this.ranges = [];
			this.overlay = null;
			this.rowHeader = null;
			this.layoutChangeTimeout = null;
			this.columnSelection = false;
			this.rowSelection = false;
			this.maxRanges = 0;
			this.activeRange = false;
			this.blockKeydown = false;
			
			this.keyDownEvent = this._handleKeyDown.bind(this);
			this.mouseUpEvent = this._handleMouseUp.bind(this);
			
			this.registerTableOption("selectableRange", false); //enable selectable range
			this.registerTableOption("selectableRangeColumns", false); //enable selectable range
			this.registerTableOption("selectableRangeRows", false); //enable selectable range
			this.registerTableOption("selectableRangeClearCells", false); //allow clearing of active range
			this.registerTableOption("selectableRangeClearCellsValue", undefined); //value for cleared active range
			this.registerTableOption("selectableRangeAutoFocus", true); //focus on a cell after resetRanges
			
			this.registerTableFunction("getRangesData", this.getRangesData.bind(this));
			this.registerTableFunction("getRanges", this.getRanges.bind(this));
			this.registerTableFunction("addRange", this.addRangeFromComponent.bind(this));
			
			this.registerComponentFunction("cell", "getRanges", this.cellGetRanges.bind(this));
			this.registerComponentFunction("row", "getRanges", this.rowGetRanges.bind(this));
			this.registerComponentFunction("column", "getRanges", this.colGetRanges.bind(this));
		}
		
		///////////////////////////////////
		///////    Initialization   ///////
		///////////////////////////////////
		
		initialize() {
			if (this.options("selectableRange")) {	
				if(!this.options("selectableRows")){
					this.maxRanges = this.options("selectableRange");
					
					this.initializeTable();
					this.initializeWatchers();
				}else {
					console.warn("SelectRange functionality cannot be used in conjunction with row selection");
				}

				if(this.options('columns').findIndex((column) => column.frozen) > 0) {
					console.warn("Having frozen column in arbitrary position with selectRange option may result in unpredictable behavior.");
				}

				if(this.options('columns').filter((column) => column.frozen) > 1) {
					console.warn("Having multiple frozen columns with selectRange option may result in unpredictable behavior.");
				}
			}
		}
		
		
		initializeTable() {		
			this.overlay = document.createElement("div");
			this.overlay.classList.add("tabulator-range-overlay");
			
			this.rangeContainer = document.createElement("div");
			this.rangeContainer.classList.add("tabulator-range-container");
			
			this.activeRangeCellElement = document.createElement("div");
			this.activeRangeCellElement.classList.add("tabulator-range-cell-active");
			
			this.overlay.appendChild(this.rangeContainer);
			this.overlay.appendChild(this.activeRangeCellElement);
			
			this.table.rowManager.element.addEventListener("keydown", this.keyDownEvent);
			
			this.resetRanges();
			
			this.table.rowManager.element.appendChild(this.overlay);
			this.table.columnManager.element.setAttribute("tabindex", 0);
			this.table.element.classList.add("tabulator-ranges");
		}
		
		initializeWatchers() {
			this.columnSelection = this.options("selectableRangeColumns");
			this.rowSelection = this.options("selectableRangeRows");
			
			this.subscribe("column-init", this.initializeColumn.bind(this));
			this.subscribe("column-mousedown", this.handleColumnMouseDown.bind(this));
			this.subscribe("column-mousemove", this.handleColumnMouseMove.bind(this));
			this.subscribe("column-resized", this.handleColumnResized.bind(this));
			this.subscribe("column-moving", this.handleColumnMoving.bind(this));
			this.subscribe("column-moved", this.handleColumnMoved.bind(this));
			this.subscribe("column-width", this.layoutChange.bind(this));
			this.subscribe("column-height", this.layoutChange.bind(this));
			this.subscribe("column-resized", this.layoutChange.bind(this));
			this.subscribe("columns-loaded", this.updateHeaderColumn.bind(this));
			
			this.subscribe("cell-height", this.layoutChange.bind(this));
			this.subscribe("cell-rendered", this.renderCell.bind(this));
			this.subscribe("cell-mousedown", this.handleCellMouseDown.bind(this));
			this.subscribe("cell-mousemove", this.handleCellMouseMove.bind(this));
			this.subscribe("cell-click", this.handleCellClick.bind(this));
			this.subscribe("cell-editing", this.handleEditingCell.bind(this));
			
			this.subscribe("page-changed", this.redraw.bind(this));
			
			this.subscribe("scroll-vertical", this.layoutChange.bind(this));
			this.subscribe("scroll-horizontal", this.layoutChange.bind(this));
			
			this.subscribe("data-destroy", this.tableDestroyed.bind(this));
			this.subscribe("data-processed", this.resetRanges.bind(this));
			
			this.subscribe("table-layout", this.layoutElement.bind(this));
			this.subscribe("table-redraw", this.redraw.bind(this));
			this.subscribe("table-destroy", this.tableDestroyed.bind(this));
			
			this.subscribe("edit-editor-clear", this.finishEditingCell.bind(this));
			this.subscribe("edit-blur", this.restoreFocus.bind(this));
			
			this.subscribe("keybinding-nav-prev", this.keyNavigate.bind(this, "left"));
			this.subscribe("keybinding-nav-next", this.keyNavigate.bind(this, "right"));
			this.subscribe("keybinding-nav-left", this.keyNavigate.bind(this, "left"));
			this.subscribe("keybinding-nav-right", this.keyNavigate.bind(this, "right"));
			this.subscribe("keybinding-nav-up", this.keyNavigate.bind(this, "up"));
			this.subscribe("keybinding-nav-down", this.keyNavigate.bind(this, "down"));
			this.subscribe("keybinding-nav-range", this.keyNavigateRange.bind(this));
		}
		
		
		initializeColumn(column) {
			if(this.columnSelection && column.definition.headerSort && this.options("headerSortClickElement") !== "icon"){
				console.warn("Using column headerSort with selectableRangeColumns option may result in unpredictable behavior. Consider using headerSortClickElement: 'icon'.");
			}
			
			if (column.modules.edit) ;
		}
		
		updateHeaderColumn(){
			var frozenCols;

			if(this.rowSelection){
				this.rowHeader = this.table.columnManager.getVisibleColumnsByIndex()[0];
				
				if(this.rowHeader){
					this.rowHeader.definition.cssClass = this.rowHeader.definition.cssClass + " tabulator-range-row-header";
					
					if(this.rowHeader.definition.headerSort){
						console.warn("Using column headerSort with selectableRangeRows option may result in unpredictable behavior");
					}
					
					if(this.rowHeader.definition.editor){
						console.warn("Using column editor with selectableRangeRows option may result in unpredictable behavior");
					}
				}
			}

			//warn if invalid frozen column configuration detected
			if(this.table.modules.frozenColumns && this.table.modules.frozenColumns.active){
				frozenCols = this.table.modules.frozenColumns.getFrozenColumns();

				if(frozenCols.length > 1 || (frozenCols.length === 1 && frozenCols[0] !== this.rowHeader)){
					console.warn("Using frozen columns that are not the range header in combination with the selectRange option may result in unpredictable behavior");
				}
			}
		}
		
		///////////////////////////////////
		///////   Table Functions   ///////
		///////////////////////////////////
		
		getRanges(){
			return this.ranges.map((range) => range.getComponent());
		}
		
		getRangesData() {
			return this.ranges.map((range) => range.getData());
		}
		
		addRangeFromComponent(start, end){
			start = start ? start._cell : null;
			end = end ? end._cell : null;
			
			return this.addRange(start, end);
		}
		
		///////////////////////////////////
		/////// Component Functions ///////
		///////////////////////////////////
		
		cellGetRanges(cell){
			var ranges = [];
			
			if (cell.column === this.rowHeader) {
				ranges = this.ranges.filter((range) => range.occupiesRow(cell.row));
			} else {
				ranges = this.ranges.filter((range) => range.occupies(cell));
			}
			
			return ranges.map((range) => range.getComponent());
		}
		
		rowGetRanges(row){
			var ranges = this.ranges.filter((range) => range.occupiesRow(row));
			
			return ranges.map((range) => range.getComponent());
		}
		
		colGetRanges(col){
			var ranges = this.ranges.filter((range) => range.occupiesColumn(col));
			
			return ranges.map((range) => range.getComponent());
		}
		
		///////////////////////////////////
		////////// Event Handlers /////////
		///////////////////////////////////
		
		_handleMouseUp(e){
			this.mousedown = false;
			document.removeEventListener("mouseup", this.mouseUpEvent);
		}
		
		_handleKeyDown(e) {
			if (!this.blockKeydown && (!this.table.modules.edit || (this.table.modules.edit && !this.table.modules.edit.currentCell))) {
				if (e.key === "Enter") {
					// is editing a cell?
					if (this.table.modules.edit && this.table.modules.edit.currentCell) {
						return;
					}
					
					this.table.modules.edit.editCell(this.getActiveCell());
					
					e.preventDefault();
				}
				
				if ((e.key === "Backspace" || e.key === "Delete") && this.options("selectableRangeClearCells")) {
					if(this.activeRange){
						this.activeRange.clearValues();
					}
				}
			}
		}
		
		initializeFocus(cell){
			var range;

			this.restoreFocus();
			
			try{
				if (document.selection) { // IE
					range = document.body.createTextRange();
					range.moveToElementText(cell.getElement());
					range.select();
				} else if (window.getSelection) {
					range = document.createRange();
					range.selectNode(cell.getElement());
					window.getSelection().removeAllRanges();
					window.getSelection().addRange(range);
				}
			}catch(e){}
		}
		
		restoreFocus(element){
			this.table.rowManager.element.focus();
			
			return true;
		}
		
		///////////////////////////////////
		////// Column Functionality ///////
		///////////////////////////////////
		
		handleColumnResized(column) {
			var selected;
			
			if (this.selecting !== "column" && this.selecting !== "all") {
				return;
			}
			
			selected = this.ranges.some((range) => range.occupiesColumn(column));
			
			if (!selected) {
				return;
			}
			
			this.ranges.forEach((range) => {
				var selectedColumns = range.getColumns(true);
				
				selectedColumns.forEach((selectedColumn) => {
					if (selectedColumn !== column) {
						selectedColumn.setWidth(column.width);
					}
				});
			});
		}
		
		handleColumnMoving(_event, column) {
			this.resetRanges().setBounds(column);
			this.overlay.style.visibility = "hidden";
		}

		handleColumnMoved(from, _to, _after) {
			this.activeRange.setBounds(from);
			this.layoutElement();
		}

		handleColumnMouseDown(event, column) {
			if (event.button === 2 && (this.selecting === "column" || this.selecting === "all") && this.activeRange.occupiesColumn(column)) {
				return;
			}

			//If columns are movable, allow dragging columns only if they are not
			//selected. Dragging selected columns should move the columns instead.
			if(this.table.options.movableColumns && this.selecting === "column" && this.activeRange.occupiesColumn(column)){
				return;
			}
			
			this.mousedown = true;
			
			document.addEventListener("mouseup", this.mouseUpEvent);
			
			this.newSelection(event, column);
		}
		
		handleColumnMouseMove(e, column) {
			if (column === this.rowHeader || !this.mousedown || this.selecting === 'all') {
				return;
			}
			
			this.activeRange.setBounds(false, column, true);
		}
		
		///////////////////////////////////
		//////// Cell Functionality ///////
		///////////////////////////////////
		
		renderCell(cell) {
			var el = cell.getElement(),
			rangeIdx = this.ranges.findIndex((range) => range.occupies(cell));
			
			el.classList.toggle("tabulator-range-selected", rangeIdx !== -1);
			el.classList.toggle("tabulator-range-only-cell-selected", this.ranges.length === 1 && this.ranges[0].atTopLeft(cell) &&	this.ranges[0].atBottomRight(cell));
			
			el.dataset.range = rangeIdx;
		}
		
		handleCellMouseDown(event, cell) {
			if (event.button === 2 && (this.activeRange.occupies(cell) || ((this.selecting === "row" || this.selecting === "all") && this.activeRange.occupiesRow(cell.row)))) {
				return;
			}
			
			this.mousedown = true;
			
			document.addEventListener("mouseup", this.mouseUpEvent);
			
			this.newSelection(event, cell);
		}
		
		handleCellMouseMove(e, cell) {
			if (!this.mousedown || this.selecting === "all") {
				return;
			}
			
			this.activeRange.setBounds(false, cell, true);
		}
		
		handleCellClick(e, cell){
			this.initializeFocus(cell);
		}
		
		handleEditingCell(cell) {
			if(this.activeRange){
				this.activeRange.setBounds(cell);
			}
		}
		
		finishEditingCell() {
			this.blockKeydown = true;
			this.table.rowManager.element.focus();
			
			setTimeout(() => {
				this.blockKeydown = false;
			}, 10);
		}
		
		///////////////////////////////////
		///////     Navigation      ///////
		///////////////////////////////////
		
		keyNavigate(dir, e){
			if(this.navigate(false, false, dir));
			e.preventDefault();
		}
		
		keyNavigateRange(e, dir, jump, expand){
			if(this.navigate(jump, expand, dir));
			e.preventDefault();
		}
		
		navigate(jump, expand, dir) {
			var moved = false,
			range, rangeEdge, prevRect, nextRow, nextCol, row, column,
			rowRect, rowManagerRect, columnRect, columnManagerRect;
			
			// Don't navigate while editing
			if (this.table.modules.edit && this.table.modules.edit.currentCell) {
				return false;
			}
			
			// If there are more than 1 range, use the active range and destroy the others
			if (this.ranges.length > 1) {
				this.ranges = this.ranges.filter((range) => {
					if (range === this.activeRange) {
						range.setEnd(range.start.row, range.start.col);
						return true;
					}
					range.destroy();
					return false;
				});
			}
			
			range = this.activeRange;
			prevRect = {
				top: range.top,
				bottom: range.bottom,
				left: range.left,
				right: range.right
			};
			
			rangeEdge = expand ? range.end : range.start;
			nextRow = rangeEdge.row;
			nextCol = rangeEdge.col;
			
			if(jump){
				switch(dir){
					case "left":
						nextCol = this.findJumpCellLeft(range.start.row, rangeEdge.col);
						break;
					case "right":
						nextCol = this.findJumpCellRight(range.start.row, rangeEdge.col);
						break;
					case "up":
						nextRow = this.findJumpCellUp(rangeEdge.row, range.start.col);
						break;
					case "down":
						nextRow = this.findJumpCellDown(rangeEdge.row, range.start.col);
						break;
				}
			}else {
				if(expand){
					if ((this.selecting === 'row' && (dir === 'left' || dir === 'right')) || (this.selecting === 'column' && (dir === 'up' || dir === 'down'))) {
						return;
					}
				}
				
				switch(dir){
					case "left":
						nextCol = Math.max(nextCol - 1, 0);
						break;
					case "right":
						nextCol = Math.min(nextCol + 1, this.getTableColumns().length - 1);
						break;
					case "up":
						nextRow = Math.max(nextRow - 1, 0);
						break;
					case "down":
						nextRow = Math.min(nextRow + 1, this.getTableRows().length - 1);
						break;
				}
			}

			if(this.rowHeader && nextCol === 0) {
				nextCol = 1;
			}
			
			if(!expand){
				range.setStart(nextRow, nextCol);
			}
			
			range.setEnd(nextRow, nextCol);
			
			if(!expand){
				this.selecting = "cell";
			}

			moved = prevRect.top !== range.top || prevRect.bottom !== range.bottom || prevRect.left !== range.left || prevRect.right !== range.right;

			if (moved) {
				row = this.getRowByRangePos(range.end.row);
				column = this.getColumnByRangePos(range.end.col);
				rowRect = row.getElement().getBoundingClientRect();
				columnRect = column.getElement().getBoundingClientRect();
				rowManagerRect = this.table.rowManager.getElement().getBoundingClientRect();
				columnManagerRect = this.table.columnManager.getElement().getBoundingClientRect();
				
				if(!(rowRect.top >= rowManagerRect.top && rowRect.bottom <= rowManagerRect.bottom)){
					if(row.getElement().parentNode && column.getElement().parentNode){
						// Use faster autoScroll when the elements are on the DOM
						this.autoScroll(range, row.getElement(), column.getElement());
					}else {
						row.getComponent().scrollTo(undefined, false);
					}
				}

				if(!(columnRect.left >= columnManagerRect.left + this.getRowHeaderWidth() && columnRect.right <= columnManagerRect.right)){
					if(row.getElement().parentNode && column.getElement().parentNode){
						// Use faster autoScroll when the elements are on the DOM
						this.autoScroll(range, row.getElement(), column.getElement());
					}else {
						column.getComponent().scrollTo(undefined, false);
					}
				}

				this.layoutElement();
				
				return true;
			}
		}
		
		rangeRemoved(removed){
			this.ranges = this.ranges.filter((range) => range !== removed);
			
			if(this.activeRange === removed){
				if(this.ranges.length){
					this.activeRange = this.ranges[this.ranges.length - 1];
				}else {
					this.addRange();
				}
			}
			
			this.layoutElement();
		}
		
		findJumpRow(column, rows, reverse, emptyStart, emptySide){
			if(reverse){
				rows = rows.reverse();
			}

			return this.findJumpItem(emptyStart, emptySide, rows, function(row){return row.getData()[column.getField()];});
		}
		
		findJumpCol(row, columns, reverse, emptyStart, emptySide){
			if(reverse){
				columns = columns.reverse();
			}

			return this.findJumpItem(emptyStart, emptySide, columns, function(column){return row.getData()[column.getField()];});
		}

		findJumpItem(emptyStart, emptySide, items, valueResolver){
			var nextItem;

			for(let currentItem of items){
				let currentValue = valueResolver(currentItem);
				
				if(emptyStart){
					nextItem = currentItem;
					if(currentValue){
						break;
					}
				}else {
					if(emptySide){
						nextItem = currentItem;
						
						if(currentValue){
							break;
						}
					}else {
						if(currentValue){
							nextItem = currentItem;
						}else {
							break;
						}
					}
				}
			}

			return nextItem;
		}

		findJumpCellLeft(rowPos, colPos){
			var row = this.getRowByRangePos(rowPos),
			columns = this.getTableColumns(),
			isStartingCellEmpty = this.isEmpty(row.getData()[columns[colPos].getField()]),
			isLeftOfStartingCellEmpty = columns[colPos - 1] ? this.isEmpty(row.getData()[columns[colPos - 1].getField()]) : false,
			targetCols = this.rowHeader ? columns.slice(1, colPos) : columns.slice(0, colPos),
			jumpCol = this.findJumpCol(row, targetCols, true, isStartingCellEmpty, isLeftOfStartingCellEmpty);
			
			if(jumpCol){
				return jumpCol.getPosition() - 1;
			}
			
			return colPos;
		}
		
		findJumpCellRight(rowPos, colPos){
			var row = this.getRowByRangePos(rowPos),
			columns = this.getTableColumns(),
			isStartingCellEmpty = this.isEmpty(row.getData()[columns[colPos].getField()]),
			isRightOfStartingCellEmpty = columns[colPos + 1] ? this.isEmpty(row.getData()[columns[colPos + 1].getField()]) : false,
			jumpCol = this.findJumpCol(row, columns.slice(colPos + 1, columns.length), false, isStartingCellEmpty, isRightOfStartingCellEmpty);
			
			if(jumpCol){
				return jumpCol.getPosition() - 1;
			}
			
			return colPos;
		}
		
		findJumpCellUp(rowPos, colPos) {
			var column = this.getColumnByRangePos(colPos),
			rows = this.getTableRows(),
			isStartingCellEmpty = this.isEmpty(rows[rowPos].getData()[column.getField()]),
			isTopOfStartingCellEmpty = rows[rowPos - 1] ? this.isEmpty(rows[rowPos - 1].getData()[column.getField()]) : false,
			jumpRow = this.findJumpRow(column, rows.slice(0, rowPos), true, isStartingCellEmpty, isTopOfStartingCellEmpty);
			
			if(jumpRow){
				return jumpRow.position - 1;
			}
			
			return rowPos;
		}
		
		findJumpCellDown(rowPos, colPos) {
			var column = this.getColumnByRangePos(colPos),
			rows = this.getTableRows(),
			isStartingCellEmpty = this.isEmpty(rows[rowPos].getData()[column.getField()]),
			isBottomOfStartingCellEmpty = rows[rowPos + 1] ? this.isEmpty(rows[rowPos + 1].getData()[column.getField()]) : false,
			jumpRow = this.findJumpRow(column, rows.slice(rowPos + 1, rows.length), false, isStartingCellEmpty, isBottomOfStartingCellEmpty);
			
			if(jumpRow){
				return jumpRow.position - 1;
			}
			
			return rowPos;
		}
		
		///////////////////////////////////
		///////      Selection      ///////
		///////////////////////////////////
		newSelection(event, element) {
			var range;
			
			if (element.type === "column") {
				if(!this.columnSelection){
					return;
				}
				
				if (element === this.rowHeader) {
					range = this.resetRanges();
					this.selecting = "all";
					
					var topLeftCell, bottomRightCell = this.getCell(-1, -1);
					
					if(this.rowHeader){
						topLeftCell = this.getCell(0, 1);
					}else {
						topLeftCell = this.getCell(0, 0);
					}
					
					range.setBounds(topLeftCell, bottomRightCell);		
					return;
				} else {
					this.selecting = "column";
				}
			} else if (element.column === this.rowHeader) {
				this.selecting = "row";
			} else {
				this.selecting = "cell";
			}
			
			if (event.shiftKey) {
				this.activeRange.setBounds(false, element);
			} else if (event.ctrlKey) {
				this.addRange().setBounds(element);
			} else {
				this.resetRanges().setBounds(element);
			}
		}
		
		autoScroll(range, row, column) {
			var tableHolder = this.table.rowManager.element,
			rect, view, withinHorizontalView, withinVerticalView;
			
			if (typeof row === 'undefined') {
				row = this.getRowByRangePos(range.end.row).getElement();
			}
			
			if (typeof column === 'undefined') {
				column = this.getColumnByRangePos(range.end.col).getElement();
			}
			
			rect = {
				left: column.offsetLeft,
				right: column.offsetLeft + column.offsetWidth,
				top: row.offsetTop,
				bottom: row.offsetTop + row.offsetHeight,
			};
			
			view = {
				left: tableHolder.scrollLeft + this.getRowHeaderWidth(),
				right: Math.ceil(tableHolder.scrollLeft + tableHolder.clientWidth),
				top: tableHolder.scrollTop,
				bottom:	tableHolder.scrollTop +	tableHolder.offsetHeight - this.table.rowManager.scrollbarWidth,
			};
			
			withinHorizontalView = view.left < rect.left &&	rect.left < view.right && view.left < rect.right &&	rect.right < view.right;
			
			withinVerticalView = view.top < rect.top &&	rect.top < view.bottom && view.top < rect.bottom &&	rect.bottom < view.bottom;
			
			if (!withinHorizontalView) {
				if (rect.left < view.left) {
					tableHolder.scrollLeft = rect.left - this.getRowHeaderWidth();
				} else if (rect.right > view.right) {
					tableHolder.scrollLeft = Math.min(rect.right - tableHolder.clientWidth, rect.left - this.getRowHeaderWidth());
				}
			}
			
			if (!withinVerticalView) {
				if (rect.top < view.top) {
					tableHolder.scrollTop = rect.top;
				} else if (rect.bottom > view.bottom) {
					tableHolder.scrollTop = rect.bottom - tableHolder.clientHeight;
				}
			}
		}
		
		
		///////////////////////////////////
		///////       Layout        ///////
		///////////////////////////////////
		
		layoutChange(){
			this.overlay.style.visibility = "hidden";
			clearTimeout(this.layoutChangeTimeout);
			this.layoutChangeTimeout = setTimeout(this.layoutRanges.bind(this), 200);
		}
		
		redraw(force) {
			if (force) {
				this.selecting = 'cell';
				this.resetRanges();
				this.layoutElement();
			}
		}
		
		layoutElement(visibleRows) {
			var rows;
			
			if (visibleRows) {
				rows = this.table.rowManager.getVisibleRows(true);
			} else {
				rows = this.table.rowManager.getRows();
			}
			
			rows.forEach((row) => {
				if (row.type === "row") {
					this.layoutRow(row);
					row.cells.forEach((cell) => this.renderCell(cell));
				}
			});
			
			this.getTableColumns().forEach((column) => {
				this.layoutColumn(column);
			});
			
			this.layoutRanges();
		}
		
		layoutRow(row) {
			var el = row.getElement(),
			selected = false,
			occupied = this.ranges.some((range) => range.occupiesRow(row));
			
			if (this.selecting === "row") {
				selected = occupied;
			} else if (this.selecting === "all") {
				selected = true;
			}
			
			el.classList.toggle("tabulator-range-selected", selected);
			el.classList.toggle("tabulator-range-highlight", occupied);
		}
		
		layoutColumn(column) {
			var el = column.getElement(),		
			selected = false,
			occupied = this.ranges.some((range) => range.occupiesColumn(column));
			
			if (this.selecting === "column") {
				selected = occupied;
			} else if (this.selecting === "all") {
				selected = true;
			}
			
			el.classList.toggle("tabulator-range-selected", selected);
			el.classList.toggle("tabulator-range-highlight", occupied);
		}
		
		layoutRanges() {
			var activeCell, activeCellEl, activeRowEl;
			
			if (!this.table.initialized) {
				return;
			}
			
			activeCell = this.getActiveCell();
			
			if (!activeCell) {
				return;
			}

			activeCellEl = activeCell.getElement();
			activeRowEl = activeCell.row.getElement();

			if(this.table.rtl){
				this.activeRangeCellElement.style.right = activeRowEl.offsetWidth - activeCellEl.offsetLeft - activeCellEl.offsetWidth + "px";
			}else {
				this.activeRangeCellElement.style.left = activeRowEl.offsetLeft + activeCellEl.offsetLeft + "px";
			}

			this.activeRangeCellElement.style.top =	activeRowEl.offsetTop + "px";
			this.activeRangeCellElement.style.width = activeCellEl.offsetWidth + "px";
			this.activeRangeCellElement.style.height =  activeRowEl.offsetHeight  + "px";
			
			this.ranges.forEach((range) => range.layout());
			
			this.overlay.style.visibility = "visible";
		}
		
		
		///////////////////////////////////
		///////  Helper Functions   ///////
		///////////////////////////////////	
		
		getCell(rowIdx, colIdx) {
			var row;
			
			if (colIdx < 0) {
				colIdx = this.getTableColumns().length + colIdx;
				if (colIdx < 0) {
					return null;
				}
			}
			
			if (rowIdx < 0) {
				rowIdx = this.getTableRows().length + rowIdx;
			}
			
			row = this.table.rowManager.getRowFromPosition(rowIdx + 1);
			
			return row ? row.getCells(false, true).filter((cell) => cell.column.visible)[colIdx] : null;
		}
		
		
		getActiveCell() {
			return this.getCell(this.activeRange.start.row, this.activeRange.start.col);
		}
		
		getRowByRangePos(pos) {
			return this.getTableRows()[pos];
		}
		
		getColumnByRangePos(pos) {
			return this.getTableColumns()[pos];
		}
		
		getTableRows() {
			return this.table.rowManager.getDisplayRows().filter(row=> row.type === "row");
		}
		
		getTableColumns() {
			return this.table.columnManager.getVisibleColumnsByIndex();
		}
		
		addRange(start, end) {
			var  range;
			
			if(this.maxRanges !== true && this.ranges.length >= this.maxRanges){
				this.ranges.shift().destroy();
			}
			
			range = new Range(this.table, this, start, end);
			
			this.activeRange = range;
			this.ranges.push(range);
			this.rangeContainer.appendChild(range.element);
			
			return range;
		}
		
		resetRanges() {
			var range, cell, visibleCells;
			
			this.ranges.forEach((range) => range.destroy());
			this.ranges = [];
			
			range = this.addRange();
			
			if(this.table.rowManager.activeRows.length){
				visibleCells = this.table.rowManager.activeRows[0].cells.filter((cell) => cell.column.visible);
				cell = visibleCells[this.rowHeader ? 1 : 0];

				if(cell){
					range.setBounds(cell);
					if(this.options("selectableRangeAutoFocus")){
						this.initializeFocus(cell);
					}
				}
			}
			
			return range;
		}
		
		tableDestroyed(){
			document.removeEventListener("mouseup", this.mouseUpEvent);
			this.table.rowManager.element.removeEventListener("keydown", this.keyDownEvent);
		}
		
		selectedRows(component) {
			return component ? this.activeRange.getRows().map((row) => row.getComponent()) : this.activeRange.getRows();
		}
		
		selectedColumns(component) {
			return component ? this.activeRange.getColumns().map((col) => col.getComponent()) : this.activeRange.getColumns();
		}

		getRowHeaderWidth(){
			if(!this.rowHeader){
				return 0;
			}
			return this.rowHeader.getElement().offsetWidth;
		}

		isEmpty(value) {
			return value === null || value === undefined || value === "";
		}
	}

	//sort numbers
	function number(a, b, aRow, bRow, column, dir, params){
		var alignEmptyValues = params.alignEmptyValues;
		var decimal = params.decimalSeparator;
		var thousand = params.thousandSeparator;
		var emptyAlign = 0;

		a = String(a);
		b = String(b);

		if(thousand){
			a = a.split(thousand).join("");
			b = b.split(thousand).join("");
		}

		if(decimal){
			a = a.split(decimal).join(".");
			b = b.split(decimal).join(".");
		}

		a = parseFloat(a);
		b = parseFloat(b);

		//handle non numeric values
		if(isNaN(a)){
			emptyAlign =  isNaN(b) ? 0 : -1;
		}else if(isNaN(b)){
			emptyAlign =  1;
		}else {
			//compare valid values
			return a - b;
		}

		//fix empty values in position
		if((alignEmptyValues === "top" && dir === "desc") || (alignEmptyValues === "bottom" && dir === "asc")){
			emptyAlign *= -1;
		}

		return emptyAlign;
	}

	//sort strings
	function string(a, b, aRow, bRow, column, dir, params){
		var alignEmptyValues = params.alignEmptyValues;
		var emptyAlign = 0;
		var locale;

		//handle empty values
		if(!a){
			emptyAlign =  !b ? 0 : -1;
		}else if(!b){
			emptyAlign =  1;
		}else {
			//compare valid values
			switch(typeof params.locale){
				case "boolean":
					if(params.locale){
						locale = this.langLocale();
					}
					break;
				case "string":
					locale = params.locale;
					break;
			}

			return String(a).toLowerCase().localeCompare(String(b).toLowerCase(), locale);
		}

		//fix empty values in position
		if((alignEmptyValues === "top" && dir === "desc") || (alignEmptyValues === "bottom" && dir === "asc")){
			emptyAlign *= -1;
		}

		return emptyAlign;
	}

	//sort datetime
	function datetime(a, b, aRow, bRow, column, dir, params){
		var DT = this.table.dependencyRegistry.lookup(["luxon", "DateTime"], "DateTime");
		var format = params.format || "dd/MM/yyyy HH:mm:ss",
		alignEmptyValues = params.alignEmptyValues,
		emptyAlign = 0;

		if(typeof DT != "undefined"){
			if(!DT.isDateTime(a)){
				if(format === "iso"){
					a = DT.fromISO(String(a));
				}else {
					a = DT.fromFormat(String(a), format);
				}
			}

			if(!DT.isDateTime(b)){
				if(format === "iso"){
					b = DT.fromISO(String(b));
				}else {
					b = DT.fromFormat(String(b), format);
				}
			}

			if(!a.isValid){
				emptyAlign = !b.isValid ? 0 : -1;
			}else if(!b.isValid){
				emptyAlign =  1;
			}else {
				//compare valid values
				return a - b;
			}

			//fix empty values in position
			if((alignEmptyValues === "top" && dir === "desc") || (alignEmptyValues === "bottom" && dir === "asc")){
				emptyAlign *= -1;
			}

			return emptyAlign;

		}else {
			console.error("Sort Error - 'datetime' sorter is dependant on luxon.js");
		}
	}

	//sort date
	function date(a, b, aRow, bRow, column, dir, params){
		if(!params.format){
			params.format = "dd/MM/yyyy";
		}

		return datetime.call(this, a, b, aRow, bRow, column, dir, params);
	}

	//sort times
	function time(a, b, aRow, bRow, column, dir, params){
		if(!params.format){
			params.format = "HH:mm";
		}

		return datetime.call(this, a, b, aRow, bRow, column, dir, params);
	}

	//sort booleans
	function boolean(a, b, aRow, bRow, column, dir, params){
		var el1 = a === true || a === "true" || a === "True" || a === 1 ? 1 : 0;
		var el2 = b === true || b === "true" || b === "True" || b === 1 ? 1 : 0;

		return el1 - el2;
	}

	//sort if element contains any data
	function array(a, b, aRow, bRow, column, dir, params){
		var type = params.type || "length",
		alignEmptyValues = params.alignEmptyValues,
		emptyAlign = 0,
		table = this.table,
		valueMap;

		if(params.valueMap){
			if(typeof params.valueMap === "string"){
				valueMap = function(value){
					return value.map((item) => {
						return Helpers.retrieveNestedData(table.options.nestedFieldSeparator, params.valueMap, item);
					});
				};
			}else {
				valueMap = params.valueMap;
			}
		}

		function calc(value){
			var result;
			
			if(valueMap){
				value = valueMap(value);
			}

			switch(type){
				case "length":
					result = value.length;
					break;

				case "sum":
					result = value.reduce(function(c, d){
						return c + d;
					});
					break;

				case "max":
					result = Math.max.apply(null, value) ;
					break;

				case "min":
					result = Math.min.apply(null, value) ;
					break;

				case "avg":
					result = value.reduce(function(c, d){
						return c + d;
					}) / value.length;
					break;

				case "string":
					result = value.join("");
					break;
			}

			return result;
		}

		//handle non array values
		if(!Array.isArray(a)){
			emptyAlign = !Array.isArray(b) ? 0 : -1;
		}else if(!Array.isArray(b)){
			emptyAlign = 1;
		}else {
			if(type === "string"){
				return String(calc(a)).toLowerCase().localeCompare(String(calc(b)).toLowerCase());
			}else {
				return calc(b) - calc(a);
			}
		}

		//fix empty values in position
		if((alignEmptyValues === "top" && dir === "desc") || (alignEmptyValues === "bottom" && dir === "asc")){
			emptyAlign *= -1;
		}

		return emptyAlign;
	}

	//sort if element contains any data
	function exists(a, b, aRow, bRow, column, dir, params){
		var el1 = typeof a == "undefined" ? 0 : 1;
		var el2 = typeof b == "undefined" ? 0 : 1;

		return el1 - el2;
	}

	//sort alpha numeric strings
	function alphanum(as, bs, aRow, bRow, column, dir, params){
		var a, b, a1, b1, i= 0, L, rx = /(\d+)|(\D+)/g, rd = /\d/;
		var alignEmptyValues = params.alignEmptyValues;
		var emptyAlign = 0;

		//handle empty values
		if(!as && as!== 0){
			emptyAlign =  !bs && bs!== 0 ? 0 : -1;
		}else if(!bs && bs!== 0){
			emptyAlign =  1;
		}else {

			if(isFinite(as) && isFinite(bs)) return as - bs;
			a = String(as).toLowerCase();
			b = String(bs).toLowerCase();
			if(a === b) return 0;
			if(!(rd.test(a) && rd.test(b))) return a > b ? 1 : -1;
			a = a.match(rx);
			b = b.match(rx);
			L = a.length > b.length ? b.length : a.length;
			while(i < L){
				a1= a[i];
				b1= b[i++];
				if(a1 !== b1){
					if(isFinite(a1) && isFinite(b1)){
						if(a1.charAt(0) === "0") a1 = "." + a1;
						if(b1.charAt(0) === "0") b1 = "." + b1;
						return a1 - b1;
					}
					else return a1 > b1 ? 1 : -1;
				}
			}

			return a.length > b.length;
		}

		//fix empty values in position
		if((alignEmptyValues === "top" && dir === "desc") || (alignEmptyValues === "bottom" && dir === "asc")){
			emptyAlign *= -1;
		}

		return emptyAlign;
	}

	var defaultSorters = {
		number:number,
		string:string,
		date:date,
		time:time,
		datetime:datetime,
		boolean:boolean,
		array:array,
		exists:exists,
		alphanum:alphanum
	};

	class Sort extends Module{

		static moduleName = "sort";

		//load defaults
		static sorters = defaultSorters;
		
		constructor(table){
			super(table);
			
			this.sortList = []; //holder current sort
			this.changed = false; //has the sort changed since last render
			
			this.registerTableOption("sortMode", "local"); //local or remote sorting
			
			this.registerTableOption("initialSort", false); //initial sorting criteria
			this.registerTableOption("columnHeaderSortMulti", true); //multiple or single column sorting
			this.registerTableOption("sortOrderReverse", false); //reverse internal sort ordering
			this.registerTableOption("headerSortElement", "<div class='tabulator-arrow'></div>"); //header sort element
			this.registerTableOption("headerSortClickElement", "header"); //element which triggers sort when clicked
			
			this.registerColumnOption("sorter");
			this.registerColumnOption("sorterParams");
			
			this.registerColumnOption("headerSort", true);
			this.registerColumnOption("headerSortStartingDir");
			this.registerColumnOption("headerSortTristate");
			
		}
		
		initialize(){
			this.subscribe("column-layout", this.initializeColumn.bind(this));
			this.subscribe("table-built", this.tableBuilt.bind(this));
			this.registerDataHandler(this.sort.bind(this), 20);
			
			this.registerTableFunction("setSort", this.userSetSort.bind(this));
			this.registerTableFunction("getSorters", this.getSort.bind(this));
			this.registerTableFunction("clearSort", this.clearSort.bind(this));
			
			if(this.table.options.sortMode === "remote"){
				this.subscribe("data-params", this.remoteSortParams.bind(this));
			}
		}
		
		tableBuilt(){
			if(this.table.options.initialSort){
				this.setSort(this.table.options.initialSort);
			}
		}
		
		remoteSortParams(data, config, silent, params){
			var sorters = this.getSort();
			
			sorters.forEach((item) => {
				delete item.column;
			});
			
			params.sort = sorters;
			
			return params;
		}
		
		
		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////
		
		userSetSort(sortList, dir){
			this.setSort(sortList, dir);
			// this.table.rowManager.sorterRefresh();
			this.refreshSort();
		}
		
		clearSort(){
			this.clear();
			// this.table.rowManager.sorterRefresh();
			this.refreshSort();
		}
		
		
		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////
		
		//initialize column header for sorting
		initializeColumn(column){
			var sorter = false,
			colEl,
			arrowEl;
			
			switch(typeof column.definition.sorter){
				case "string":
					if(Sort.sorters[column.definition.sorter]){
						sorter = Sort.sorters[column.definition.sorter];
					}else {
						console.warn("Sort Error - No such sorter found: ", column.definition.sorter);
					}
					break;
				
				case "function":
					sorter = column.definition.sorter;
					break;
			}
			
			column.modules.sort = {
				sorter:sorter, dir:"none",
				params:column.definition.sorterParams || {},
				startingDir:column.definition.headerSortStartingDir || "asc",
				tristate: column.definition.headerSortTristate,
			};
			
			if(column.definition.headerSort !== false){
				
				colEl = column.getElement();
				
				colEl.classList.add("tabulator-sortable");
				
				arrowEl = document.createElement("div");
				arrowEl.classList.add("tabulator-col-sorter");
				
				switch(this.table.options.headerSortClickElement){
					case "icon":
						arrowEl.classList.add("tabulator-col-sorter-element");
						break;
					case "header":
						colEl.classList.add("tabulator-col-sorter-element");
						break;
					default:
						colEl.classList.add("tabulator-col-sorter-element");
						break;
				}
				
				switch(this.table.options.headerSortElement){
					case "function":
					//do nothing
						break;
					
					case "object":
						arrowEl.appendChild(this.table.options.headerSortElement);
						break;
					
					default:
						arrowEl.innerHTML = this.table.options.headerSortElement;
				}
				
				//create sorter arrow
				column.titleHolderElement.appendChild(arrowEl);
				
				column.modules.sort.element = arrowEl;
				
				this.setColumnHeaderSortIcon(column, "none");
				
				if(this.table.options.headerSortClickElement === "icon"){
					arrowEl.addEventListener("mousedown", (e) => {
						e.stopPropagation();
					});
				}
				
				//sort on click
				(this.table.options.headerSortClickElement === "icon" ? arrowEl : colEl).addEventListener("click", (e) => {
					var dir = "",
					sorters=[],
					match = false;
					
					if(column.modules.sort){
						if(column.modules.sort.tristate){
							if(column.modules.sort.dir == "none"){
								dir = column.modules.sort.startingDir;
							}else {
								if(column.modules.sort.dir == column.modules.sort.startingDir){
									dir = column.modules.sort.dir == "asc" ? "desc" : "asc";
								}else {
									dir = "none";
								}
							}
						}else {
							switch(column.modules.sort.dir){
								case "asc":
									dir = "desc";
									break;
								
								case "desc":
									dir = "asc";
									break;
								
								default:
									dir = column.modules.sort.startingDir;
							}
						}
						
						if (this.table.options.columnHeaderSortMulti && (e.shiftKey || e.ctrlKey)) {
							sorters = this.getSort();
							
							match = sorters.findIndex((sorter) => {
								return sorter.field === column.getField();
							});
							
							if(match > -1){
								sorters[match].dir = dir;
								
								match = sorters.splice(match, 1)[0];
								if(dir != "none"){
									sorters.push(match);
								}
							}else {
								if(dir != "none"){
									sorters.push({column:column, dir:dir});
								}
							}
							
							//add to existing sort
							this.setSort(sorters);
						}else {
							if(dir == "none"){
								this.clear();
							}else {
								//sort by column only
								this.setSort(column, dir);
							}
							
						}
						
						// this.table.rowManager.sorterRefresh(!this.sortList.length);
						this.refreshSort();
					}
				});
			}
		}
		
		refreshSort(){
			if(this.table.options.sortMode === "remote"){
				this.reloadData(null, false, false);
			}else {
				this.refreshData(true);
			}
			
			//TODO - Persist left position of row manager
			// left = this.scrollLeft;
			// this.scrollHorizontal(left);
		}
		
		//check if the sorters have changed since last use
		hasChanged(){
			var changed = this.changed;
			this.changed = false;
			return changed;
		}
		
		//return current sorters
		getSort(){
			var self = this,
			sorters = [];
			
			self.sortList.forEach(function(item){
				if(item.column){
					sorters.push({column:item.column.getComponent(), field:item.column.getField(), dir:item.dir});
				}
			});
			
			return sorters;
		}
		
		//change sort list and trigger sort
		setSort(sortList, dir){
			var self = this,
			newSortList = [];
			
			if(!Array.isArray(sortList)){
				sortList = [{column: sortList, dir:dir}];
			}
			
			sortList.forEach(function(item){
				var column;
				
				column = self.table.columnManager.findColumn(item.column);
				
				if(column){
					item.column = column;
					newSortList.push(item);
					self.changed = true;
				}else {
					console.warn("Sort Warning - Sort field does not exist and is being ignored: ", item.column);
				}
				
			});
			
			self.sortList = newSortList;
			
			this.dispatch("sort-changed");
		}
		
		//clear sorters
		clear(){
			this.setSort([]);
		}
		
		//find appropriate sorter for column
		findSorter(column){
			var row = this.table.rowManager.activeRows[0],
			sorter = "string",
			field, value;
			
			if(row){
				row = row.getData();
				field = column.getField();
				
				if(field){
					
					value = column.getFieldValue(row);
					
					switch(typeof value){
						case "undefined":
							sorter = "string";
							break;
						
						case "boolean":
							sorter = "boolean";
							break;
						
						default:
							if(!isNaN(value) && value !== ""){
								sorter = "number";
							}else {
								if(value.match(/((^[0-9]+[a-z]+)|(^[a-z]+[0-9]+))+$/i)){
									sorter = "alphanum";
								}
							}
							break;
					}
				}
			}
			
			return Sort.sorters[sorter];
		}
		
		//work through sort list sorting data
		sort(data, sortOnly){
			var self = this,
			sortList = this.table.options.sortOrderReverse ? self.sortList.slice().reverse() : self.sortList,
			sortListActual = [],
			rowComponents = [];
			
			if(this.subscribedExternal("dataSorting")){
				this.dispatchExternal("dataSorting", self.getSort());
			}
			
			if(!sortOnly) {
				self.clearColumnHeaders();
			}
			
			if(this.table.options.sortMode !== "remote"){
				
				//build list of valid sorters and trigger column specific callbacks before sort begins
				sortList.forEach(function(item, i){
					var sortObj;
					
					if(item.column){
						sortObj = item.column.modules.sort;
						
						if(sortObj){
							
							//if no sorter has been defined, take a guess
							if(!sortObj.sorter){
								sortObj.sorter = self.findSorter(item.column);
							}
							
							item.params = typeof sortObj.params === "function" ? sortObj.params(item.column.getComponent(), item.dir) : sortObj.params;
							
							sortListActual.push(item);
						}
						
						if(!sortOnly) {
							self.setColumnHeader(item.column, item.dir);
						}
					}
				});
				
				//sort data
				if (sortListActual.length) {
					self._sortItems(data, sortListActual);
				}
				
			}else if(!sortOnly) {
				sortList.forEach(function(item, i){
					self.setColumnHeader(item.column, item.dir);
				});
			}

			
			if(this.subscribedExternal("dataSorted")){
				data.forEach((row) => {
					rowComponents.push(row.getComponent());
				});
				
				this.dispatchExternal("dataSorted", self.getSort(), rowComponents);
			}
			
			return data;
		}
		
		//clear sort arrows on columns
		clearColumnHeaders(){
			this.table.columnManager.getRealColumns().forEach((column) => {
				if(column.modules.sort){
					column.modules.sort.dir = "none";
					column.getElement().setAttribute("aria-sort", "none");
					this.setColumnHeaderSortIcon(column, "none");
				}
			});
		}
		
		//set the column header sort direction
		setColumnHeader(column, dir){
			column.modules.sort.dir = dir;
			column.getElement().setAttribute("aria-sort", dir === "asc" ? "ascending" : "descending");
			this.setColumnHeaderSortIcon(column, dir);
		}
		
		setColumnHeaderSortIcon(column, dir){
			var sortEl = column.modules.sort.element,
			arrowEl;
			
			if(column.definition.headerSort && typeof this.table.options.headerSortElement === "function"){
				while(sortEl.firstChild) sortEl.removeChild(sortEl.firstChild);
				
				arrowEl = this.table.options.headerSortElement.call(this.table, column.getComponent(), dir);
				
				if(typeof arrowEl === "object"){
					sortEl.appendChild(arrowEl);
				}else {
					sortEl.innerHTML = arrowEl;
				}
			}
		}
		
		//sort each item in sort list
		_sortItems(data, sortList){
			var sorterCount = sortList.length - 1;
			
			data.sort((a, b) => {
				var result;
				
				for(var i = sorterCount; i>= 0; i--){
					let sortItem = sortList[i];
					
					result = this._sortRow(a, b, sortItem.column, sortItem.dir, sortItem.params);
					
					if(result !== 0){
						break;
					}
				}
				
				return result;
			});
		}
		
		//process individual rows for a sort function on active data
		_sortRow(a, b, column, dir, params){
			var el1Comp, el2Comp;
			
			//switch elements depending on search direction
			var el1 = dir == "asc" ? a : b;
			var el2 = dir == "asc" ? b : a;
			
			a = column.getFieldValue(el1.getData());
			b = column.getFieldValue(el2.getData());
			
			a = typeof a !== "undefined" ? a : "";
			b = typeof b !== "undefined" ? b : "";
			
			el1Comp = el1.getComponent();
			el2Comp = el2.getComponent();
			
			return column.modules.sort.sorter.call(this, a, b, el1Comp, el2Comp, column.getComponent(), dir, params);
		}
	}

	class GridCalculator{
		constructor(columns, rows){
			this.columnCount = columns;
			this.rowCount = rows;

			this.columnString = [];
			this.columns = [];
			this.rows = [];
		}

		genColumns(data){
			var colCount = Math.max(this.columnCount, Math.max(...data.map(item => item.length)));

			this.columnString = [];
			this.columns = [];

			for(let i = 1; i <= colCount; i++){
				this.incrementChar(this.columnString.length - 1);
				this.columns.push(this.columnString.join(""));
			}

			return this.columns;
		}

		genRows(data){
			var rowCount = Math.max(this.rowCount, data.length);

			this.rows = [];

			for(let i = 1; i <= rowCount; i++){
				this.rows.push(i);
			}
			
			return this.rows;
		}

		incrementChar(i){
			let char = this.columnString[i];

			if(char){
				if(char !== "Z"){
					this.columnString[i] = String.fromCharCode(this.columnString[i].charCodeAt(0) + 1);
				}else {
					this.columnString[i] = "A";
					
					if(i){
						this.incrementChar(i-1);
					}else {
						this.columnString.push("A");
					}
				}
			}else {
				this.columnString.push("A");
			}
		}

		setRowCount(count){
			this.rowCount = count;
		}

		setColumnCount(count){
			this.columnCount = count;
		}
	}

	class SheetComponent {
		constructor(sheet) {
			this._sheet = sheet;

			return new Proxy(this, {
				get: function (target, name, receiver) {
					if (typeof target[name] !== "undefined") {
						return target[name];
					} else {
						return target._sheet.table.componentFunctionBinder.handle("sheet", target._sheet, name);
					}
				},
			});
		}

		getTitle(){
			return this._sheet.title;
		}

		getKey(){
			return this._sheet.key;
		}

		getDefinition(){
			return this._sheet.getDefinition();
		}

		getData() {
			return this._sheet.getData();
		}

		setData(data) {
			return this._sheet.setData(data);
		}

		clear(){
			return this._sheet.clear();
		}

		remove(){
			return this._sheet.remove();
		}
		
		active(){
			return this._sheet.active();
		}

		setTitle(title){
			return this._sheet.setTitle(title);
		}

		setRows(rows){
			return this._sheet.setRows(rows);
		}

		setColumns(columns){
			return this._sheet.setColumns(columns);
		}
	}

	class Sheet extends CoreFeature{
		constructor(spreadsheetManager, definition) {
			super(spreadsheetManager.table);
			
			this.spreadsheetManager = spreadsheetManager;
			this.definition = definition;
			
			this.title = this.definition.title || "";
			this.key = this.definition.key || this.definition.title;
			this.rowCount = this.definition.rows;
			this.columnCount = this.definition.columns;
			this.data = this.definition.data || [];
			this.element = null;
			this.isActive = false;
			
			this.grid = new GridCalculator(this.columnCount, this.rowCount);
			
			this.defaultColumnDefinition = {width:100, headerHozAlign:"center", headerSort:false};
			this.columnDefinition = Object.assign(this.defaultColumnDefinition, this.options("spreadsheetColumnDefinition"));
			
			this.columnDefs = [];
			this.rowDefs = [];
			this.columnFields = [];
			this.columns = [];
			this.rows = [];
			
			this.scrollTop = null;
			this.scrollLeft = null;
			
			this.initialize();
			
			this.dispatchExternal("sheetAdded", this.getComponent());
		}
		
		///////////////////////////////////
		///////// Initialization //////////
		///////////////////////////////////
		
		initialize(){
			this.initializeElement();
			this.initializeColumns();
			this.initializeRows();
		}
		
		reinitialize(){
			this.initializeColumns();
			this.initializeRows();
		}
		
		initializeElement(){
			this.element = document.createElement("div");
			this.element.classList.add("tabulator-spreadsheet-tab");
			this.element.innerText = this.title;
			
			this.element.addEventListener("click", () => {
				this.spreadsheetManager.loadSheet(this);
			});
		}
		
		initializeColumns(){
			this.grid.setColumnCount(this.columnCount);
			this.columnFields = this.grid.genColumns(this.data);
			
			this.columnDefs = [];
			
			this.columnFields.forEach((ref) => {
				var def = Object.assign({}, this.columnDefinition);
				def.field = ref;
				def.title = ref;
				
				this.columnDefs.push(def);
			});
		}
		
		initializeRows(){
			var refs;
			
			this.grid.setRowCount(this.rowCount);
			
			refs = this.grid.genRows(this.data);
			
			this.rowDefs = [];
			
			refs.forEach((ref, i) => {
				var def = {"_id":ref};
				var data = this.data[i];
				
				if(data){
					data.forEach((val, j) => {
						var field = this.columnFields[j];
						
						if(field){
							def[field] = val;
						}
					});
				}
				
				this.rowDefs.push(def);
			});
		}
		
		unload(){
			this.isActive = false;
			this.scrollTop = this.table.rowManager.scrollTop;
			this.scrollLeft = this.table.rowManager.scrollLeft;
			this.data = this.getData(true);
			this.element.classList.remove("tabulator-spreadsheet-tab-active");
		}
		
		load(){
			
			var wasInactive = !this.isActive;
			
			this.isActive = true;
			this.table.blockRedraw();
			this.table.setData([]);
			this.table.setColumns(this.columnDefs);
			this.table.setData(this.rowDefs);
			this.table.restoreRedraw();
			
			if(wasInactive && this.scrollTop !== null){
				this.table.rowManager.element.scrollLeft = this.scrollLeft;
				this.table.rowManager.element.scrollTop = this.scrollTop;
			}
			
			this.element.classList.add("tabulator-spreadsheet-tab-active");
			
			this.dispatchExternal("sheetLoaded", this.getComponent());
		}
		
		///////////////////////////////////
		//////// Helper Functions /////////
		///////////////////////////////////
		
		getComponent(){
			return new SheetComponent(this);
		}
		
		getDefinition(){
			return {
				title:this.title,
				key:this.key,
				rows:this.rowCount,
				columns:this.columnCount,
				data:this.getData(),
			};
		}
		
		getData(full){
			var output = [], 
			rowWidths,
			outputWidth, outputHeight;
			
			//map data to array format
			this.rowDefs.forEach((rowData) => {
				var row = [];
				
				this.columnFields.forEach((field) => {
					row.push(rowData[field]);
				});
				
				output.push(row);
			});
			
			//trim output
			if(!full && !this.options("spreadsheetOutputFull")){
				
				//calculate used area of data
				rowWidths = output.map(row => row.findLastIndex(val => typeof val !== 'undefined') + 1);
				outputWidth = Math.max(...rowWidths);
				outputHeight = rowWidths.findLastIndex(width => width > 0) + 1;
				
				output = output.slice(0, outputHeight);
				output = output.map(row => row.slice(0, outputWidth));
			}
			
			return output;
		}
		
		setData(data){
			this.data = data;
			this.reinitialize();
			
			this.dispatchExternal("sheetUpdated", this.getComponent());
			
			if(this.isActive){
				this.load();
			}
		}
		
		clear(){
			this.setData([]);
		}
		
		setTitle(title){
			this.title = title;
			this.element.innerText = title;
			
			this.dispatchExternal("sheetUpdated", this.getComponent());
		}
		
		setRows(rows){
			this.rowCount = rows;
			this.initializeRows();
			
			this.dispatchExternal("sheetUpdated", this.getComponent());
			
			if(this.isActive){
				this.load();
			}
		}
		
		setColumns(columns){
			this.columnCount = columns;
			this.reinitialize();
			
			this.dispatchExternal("sheetUpdated", this.getComponent());
			
			if(this.isActive){
				this.load();
			}
		}
		
		remove(){
			this.spreadsheetManager.removeSheet(this);
		}
		
		destroy(){
			if(this.element.parentNode){
				this.element.parentNode.removeChild(this.element);
			}
			
			this.dispatchExternal("sheetRemoved", this.getComponent());
		}
		
		active(){
			this.spreadsheetManager.loadSheet(this);
		}
	}

	class Spreadsheet extends Module{
		
		static moduleName = "spreadsheet";
		
		constructor(table){
			super(table);
			
			this.sheets = [];
			this.element = null;
			
			this.registerTableOption("spreadsheet", false); 
			this.registerTableOption("spreadsheetRows", 50); 
			this.registerTableOption("spreadsheetColumns", 50); 
			this.registerTableOption("spreadsheetColumnDefinition", {}); 
			this.registerTableOption("spreadsheetOutputFull", false); 
			this.registerTableOption("spreadsheetData", false); 
			this.registerTableOption("spreadsheetSheets", false); 
			this.registerTableOption("spreadsheetSheetTabs", false); 
			this.registerTableOption("spreadsheetSheetTabsElement", false); 
			
			this.registerTableFunction("setSheets", this.setSheets.bind(this));
			this.registerTableFunction("addSheet", this.addSheet.bind(this));
			this.registerTableFunction("getSheets", this.getSheets.bind(this));
			this.registerTableFunction("getSheetDefinitions", this.getSheetDefinitions.bind(this));
			this.registerTableFunction("setSheetData", this.setSheetData.bind(this));
			this.registerTableFunction("getSheet", this.getSheet.bind(this));
			this.registerTableFunction("getSheetData", this.getSheetData.bind(this));
			this.registerTableFunction("clearSheet", this.clearSheet.bind(this));
			this.registerTableFunction("removeSheet", this.removeSheetFunc.bind(this));
			this.registerTableFunction("activeSheet", this.activeSheetFunc.bind(this));
		}
		
		///////////////////////////////////
		////// Module Initialization //////
		///////////////////////////////////
		
		
		initialize(){
			if(this.options("spreadsheet")){	
				this.subscribe("table-initialized", this.tableInitialized.bind(this));
				this.subscribe("data-loaded", this.loadRemoteData.bind(this));
				
				this.table.options.index = "_id";
				
				if(this.options("spreadsheetData") && this.options("spreadsheetSheets")){
					console.warn("You cannot use spreadsheetData and spreadsheetSheets at the same time, ignoring spreadsheetData");
					
					this.table.options.spreadsheetData = false;
				}
				
				this.compatibilityCheck();
				
				if(this.options("spreadsheetSheetTabs")){
					this.initializeTabset();
				}
			}
		}
		
		compatibilityCheck(){
			if(this.options("data")){
				console.warn("Do not use the data option when working with spreadsheets, use either spreadsheetData or spreadsheetSheets to pass data into the table");
			}
			
			if(this.options("pagination")){
				console.warn("The spreadsheet module is not compatible with the pagination module");
			}
			
			if(this.options("groupBy")){
				console.warn("The spreadsheet module is not compatible with the row grouping module");
			}
			
			if(this.options("responsiveCollapse")){
				console.warn("The spreadsheet module is not compatible with the responsive collapse module");
			}
		}
		initializeTabset(){
			this.element = document.createElement("div");
			this.element.classList.add("tabulator-spreadsheet-tabs");
			var altContainer = this.options("spreadsheetSheetTabsElement");
			
			if(altContainer && !(altContainer instanceof HTMLElement)){
				altContainer = document.querySelector(altContainer);
				
				if(!altContainer){
					console.warn("Unable to find element matching spreadsheetSheetTabsElement selector:", this.options("spreadsheetSheetTabsElement"));
				}
			}
			
			if(altContainer){
				altContainer.appendChild(this.element);
			}else {
				this.footerAppend(this.element);
			}
		}
		
		tableInitialized(){
			if(this.sheets.length){
				this.loadSheet(this.sheets[0]);
			}else {
				
				if(this.options("spreadsheetSheets")){
					this.loadSheets(this.options("spreadsheetSheets"));
				}else if(this.options("spreadsheetData")){
					this.loadData(this.options("spreadsheetData"));
				}
			}
		}

		///////////////////////////////////
		/////////// Ajax Parsing //////////
		///////////////////////////////////

		loadRemoteData(data, data1, data2){
			console.log("data", data, data1, data2);

			if(Array.isArray(data)){

				this.table.dataLoader.clearAlert();
				this.dispatchExternal("dataLoaded", data);

				if(!data.length || Array.isArray(data[0])){
					this.loadData(data);
				}else {
					this.loadSheets(data);
				}
			}else {
				console.error("Spreadsheet Loading Error - Unable to process remote data due to invalid data type \nExpecting: array \nReceived: ", typeof data, "\nData:     ", data);
			}

			return false;
		}

		///////////////////////////////////
		///////// Sheet Management ////////
		///////////////////////////////////
		
		
		loadData(data){
			var def = {
				data:data,
			};
			
			this.loadSheet(this.newSheet(def));
		}
		
		destroySheets(){
			this.sheets.forEach((sheet) => {
				sheet.destroy();
			});
			
			this.sheets = [];
			this.activeSheet = null;
		}
		
		loadSheets(sheets){	
			if(!Array.isArray(sheets)){
				sheets = [];
			}
			
			this.destroySheets();
			
			sheets.forEach((def) => {
				this.newSheet(def);
			});
			
			this.loadSheet(this.sheets[0]);
		}
		
		loadSheet(sheet){
			if(this.activeSheet !== sheet){
				if(this.activeSheet){
					this.activeSheet.unload();
				}
				
				this.activeSheet = sheet;
				
				sheet.load();
			}
		}
		
		newSheet(definition = {}){
			var sheet;
			
			if(!definition.rows){
				definition.rows = this.options("spreadsheetRows");
			}
			
			if(!definition.columns){
				definition.columns = this.options("spreadsheetColumns");
			}
			
			sheet = new Sheet(this, definition);
			
			this.sheets.push(sheet);
			
			if(this.element){
				this.element.appendChild(sheet.element);
			}
			
			return sheet;
		}
		
		removeSheet(sheet){
			var index = this.sheets.indexOf(sheet),
			prevSheet;
			
			if(this.sheets.length > 1){
				if(index > -1){
					this.sheets.splice(index, 1);
					sheet.destroy();
					
					if(this.activeSheet === sheet){
						
						prevSheet = this.sheets[index - 1] || this.sheets[0];
						
						if(prevSheet){
							this.loadSheet(prevSheet);
						}else {
							this.activeSheet = null;
						}
					}
				}
			}else {
				console.warn("Unable to remove sheet, at least one sheet must be active");
			}
		}
		
		lookupSheet(key){
			if(!key){
				return this.activeSheet;
			}else if(key instanceof Sheet){
				return key;
			}else if(key instanceof SheetComponent){
				return key._sheet;
			}else {
				return this.sheets.find(sheet => sheet.key === key) || false;
			}
		}
		
		
		///////////////////////////////////
		//////// Public Functions /////////
		///////////////////////////////////
		
		setSheets(sheets){
			this.loadSheets(sheets);

			return this.getSheets();
		}

		addSheet(sheet){
			return this.newSheet(sheet).getComponent();
		}
		
		getSheetDefinitions(){
			return this.sheets.map(sheet => sheet.getDefinition());
		}
		
		getSheets(){
			return this.sheets.map(sheet => sheet.getComponent());
		}
		
		getSheet(key){
			var sheet = this.lookupSheet(key);
			
			return sheet ? sheet.getComponent() : false;
		}
		
		setSheetData(key, data){
			if (key && !data){
				data = key;
				key = false;
			}
			
			var sheet = this.lookupSheet(key);
			
			return sheet ? sheet.setData(data) : false;	
		}
		
		getSheetData(key){
			var sheet = this.lookupSheet(key);
			
			return sheet ? sheet.getData() : false;	
		}
		
		clearSheet(key){
			var sheet = this.lookupSheet(key);
			
			return sheet ? sheet.clear() : false;
		}
		
		removeSheetFunc(key){
			var sheet = this.lookupSheet(key);
			
			if(sheet){
				this.removeSheet(sheet);
			}
		}
		
		activeSheetFunc(key){
			var sheet = this.lookupSheet(key);
			
			return sheet ? this.loadSheet(sheet) : false;
		}
	}

	class Tooltip extends Module{

		static moduleName = "tooltip";
		
		constructor(table){
			super(table);
			
			this.tooltipSubscriber = null,
			this.headerSubscriber = null,
			
			this.timeout = null;
			this.popupInstance = null;
			
			// this.registerTableOption("tooltipGenerationMode", undefined);  //deprecated
			this.registerTableOption("tooltipDelay", 300); 
			
			this.registerColumnOption("tooltip");
			this.registerColumnOption("headerTooltip");
		}
		
		initialize(){
			this.deprecatedOptionsCheck();
			
			this.subscribe("column-init", this.initializeColumn.bind(this));
		}
		
		deprecatedOptionsCheck(){
			// this.deprecationCheckMsg("tooltipGenerationMode", "This option is no longer needed as tooltips are always generated on hover now");
		}	
		
		initializeColumn(column){
			if(column.definition.headerTooltip && !this.headerSubscriber){
				this.headerSubscriber = true;
				
				this.subscribe("column-mousemove", this.mousemoveCheck.bind(this, "headerTooltip"));
				this.subscribe("column-mouseout", this.mouseoutCheck.bind(this, "headerTooltip"));
			}
			
			if(column.definition.tooltip && !this.tooltipSubscriber){
				this.tooltipSubscriber = true;
				
				this.subscribe("cell-mousemove", this.mousemoveCheck.bind(this, "tooltip"));
				this.subscribe("cell-mouseout", this.mouseoutCheck.bind(this, "tooltip"));
			}
		}
		
		mousemoveCheck(action, e, component){
			var tooltip = action === "tooltip" ? component.column.definition.tooltip : component.definition.headerTooltip;
			
			if(tooltip){
				this.clearPopup();
				this.timeout = setTimeout(this.loadTooltip.bind(this, e, component, tooltip), this.table.options.tooltipDelay);
			}
		}

		mouseoutCheck(action, e, component){
			if(!this.popupInstance){
				this.clearPopup();
			}
		}
		
		clearPopup(action, e, component){
			clearTimeout(this.timeout);
			this.timeout = null;
			
			if(this.popupInstance){
				this.popupInstance.hide();
			}
		}
		
		loadTooltip(e, component, tooltip){
			var contentsEl, renderedCallback, coords;

			function onRendered(callback){
				renderedCallback = callback;
			}
			
			if(typeof tooltip === "function"){
				tooltip = tooltip(e, component.getComponent(), onRendered);
			}
			
			if(tooltip instanceof HTMLElement){
				contentsEl = tooltip;
			}else {
				contentsEl = document.createElement("div");
				
				if(tooltip === true){
					if(component instanceof Cell){
						tooltip = component.value;
					}else {
						if(component.definition.field){
							this.langBind("columns|" + component.definition.field, (value) => {
								contentsEl.innerHTML = tooltip = value || component.definition.title;
							});
						}else {
							tooltip = component.definition.title;
						}
					}
				}
				
				contentsEl.innerHTML = tooltip;
			}
			
			if(tooltip || tooltip === 0 || tooltip === false){
				contentsEl.classList.add("tabulator-tooltip");

				contentsEl.addEventListener("mousemove", e => e.preventDefault());
				
				this.popupInstance = this.popup(contentsEl);
				
				if(typeof renderedCallback === "function"){
					this.popupInstance.renderCallback(renderedCallback);
				}

				coords = this.popupInstance.containerEventCoords(e);
				
				this.popupInstance.show(coords.x + 15, coords.y + 15).hideOnBlur(() => {
					this.dispatchExternal("TooltipClosed", component.getComponent());
					this.popupInstance = null;
				});
				
				this.dispatchExternal("TooltipOpened", component.getComponent());
			}
		}
	}

	var defaultValidators = {
		//is integer
		integer: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}

			value = Number(value);

			return !isNaN(value) && isFinite(value) && Math.floor(value) === value;
		},

		//is float
		float: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			
			value = Number(value);

			return !isNaN(value) && isFinite(value) && value % 1 !== 0;
		},

		//must be a number
		numeric: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return !isNaN(value);
		},

		//must be a string
		string: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return isNaN(value);
		},

		//must be alphanumeric
		alphanumeric: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}

			var reg = new RegExp(/^[a-z0-9]+$/i);

			return reg.test(value);
		},

		//maximum value
		max: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return parseFloat(value) <= parameters;
		},

		//minimum value
		min: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return parseFloat(value) >= parameters;
		},

		//starts with  value
		starts: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return String(value).toLowerCase().startsWith(String(parameters).toLowerCase());
		},

		//ends with  value
		ends: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return String(value).toLowerCase().endsWith(String(parameters).toLowerCase());
		},


		//minimum string length
		minLength: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return String(value).length >= parameters;
		},

		//maximum string length
		maxLength: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			return String(value).length <= parameters;
		},

		//in provided value list
		in: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}

			if(typeof parameters == "string"){
				parameters = parameters.split("|");
			}

			return parameters.indexOf(value) > -1;
		},

		//must match provided regex
		regex: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			var reg = new RegExp(parameters);

			return reg.test(value);
		},

		//value must be unique in this column
		unique: function(cell, value, parameters){
			if(value === "" || value === null || typeof value === "undefined"){
				return true;
			}
			var unique = true;

			var cellData = cell.getData();
			var column = cell.getColumn()._getSelf();

			this.table.rowManager.rows.forEach(function(row){
				var data = row.getData();

				if(data !== cellData){
					if(value == column.getFieldValue(data)){
						unique = false;
					}
				}
			});

			return unique;
		},

		//must have a value
		required:function(cell, value, parameters){
			return value !== "" && value !== null && typeof value !== "undefined";
		},
	};

	class Validate extends Module{

		static moduleName = "validate";

		//load defaults
		static validators = defaultValidators;
		
		constructor(table){
			super(table);
			
			this.invalidCells = [];
			
			this.registerTableOption("validationMode", "blocking");
			
			this.registerColumnOption("validator");
			
			this.registerTableFunction("getInvalidCells", this.getInvalidCells.bind(this));
			this.registerTableFunction("clearCellValidation", this.userClearCellValidation.bind(this));
			this.registerTableFunction("validate", this.userValidate.bind(this));
			
			this.registerComponentFunction("cell", "isValid", this.cellIsValid.bind(this));
			this.registerComponentFunction("cell", "clearValidation", this.clearValidation.bind(this));
			this.registerComponentFunction("cell", "validate", this.cellValidate.bind(this));
			
			this.registerComponentFunction("column", "validate", this.columnValidate.bind(this));
			this.registerComponentFunction("row", "validate", this.rowValidate.bind(this));
		}
		
		
		initialize(){
			this.subscribe("cell-delete", this.clearValidation.bind(this));
			this.subscribe("column-layout", this.initializeColumnCheck.bind(this));
			
			this.subscribe("edit-success", this.editValidate.bind(this));
			this.subscribe("edit-editor-clear", this.editorClear.bind(this));
			this.subscribe("edit-edited-clear", this.editedClear.bind(this));
		}
		
		///////////////////////////////////
		///////// Event Handling //////////
		///////////////////////////////////
		
		editValidate(cell, value, previousValue){
			var valid = this.table.options.validationMode !== "manual" ? this.validate(cell.column.modules.validate, cell, value) : true;
			
			// allow time for editor to make render changes then style cell
			if(valid !== true){
				setTimeout(() => {
					cell.getElement().classList.add("tabulator-validation-fail");
					this.dispatchExternal("validationFailed", cell.getComponent(), value, valid);
				});
			}
			
			return valid;
		}
		
		editorClear(cell, cancelled){
			if(cancelled){
				if(cell.column.modules.validate){
					this.cellValidate(cell);
				}
			}

			cell.getElement().classList.remove("tabulator-validation-fail");
		}
		
		editedClear(cell){
			if(cell.modules.validate){
				cell.modules.validate.invalid = false;
			}
		}
		
		///////////////////////////////////
		////////// Cell Functions /////////
		///////////////////////////////////
		
		cellIsValid(cell){
			return cell.modules.validate ? (cell.modules.validate.invalid || true) : true;
		}
		
		cellValidate(cell){
			return this.validate(cell.column.modules.validate, cell, cell.getValue());
		}
		
		///////////////////////////////////
		///////// Column Functions ////////
		///////////////////////////////////
		
		columnValidate(column){
			var invalid = [];
			
			column.cells.forEach((cell) => {
				if(this.cellValidate(cell) !== true){
					invalid.push(cell.getComponent());
				}
			});
			
			return invalid.length ? invalid : true;
		}
		
		///////////////////////////////////
		////////// Row Functions //////////
		///////////////////////////////////
		
		rowValidate(row){
			var invalid = [];
			
			row.cells.forEach((cell) => {
				if(this.cellValidate(cell) !== true){
					invalid.push(cell.getComponent());
				}
			});
			
			return invalid.length ? invalid : true;
		}
		
		///////////////////////////////////
		///////// Table Functions /////////
		///////////////////////////////////
		
		
		userClearCellValidation(cells){
			if(!cells){
				cells = this.getInvalidCells();
			}
			
			if(!Array.isArray(cells)){
				cells = [cells];
			}
			
			cells.forEach((cell) => {
				this.clearValidation(cell._getSelf());
			});
		}
		
		userValidate(cells){
			var output = [];
			
			//clear row data
			this.table.rowManager.rows.forEach((row) => {
				row = row.getComponent();
				
				var valid = row.validate();
				
				if(valid !== true){
					output = output.concat(valid);
				}
			});
			
			return output.length ? output : true;
		}
		
		///////////////////////////////////
		///////// Internal Logic //////////
		///////////////////////////////////
		
		initializeColumnCheck(column){
			if(typeof column.definition.validator !== "undefined"){
				this.initializeColumn(column);
			}
		}
		
		//validate
		initializeColumn(column){
			var self = this,
			config = [],
			validator;
			
			if(column.definition.validator){
				
				if(Array.isArray(column.definition.validator)){
					column.definition.validator.forEach((item) => {
						validator = self._extractValidator(item);
						
						if(validator){
							config.push(validator);
						}
					});
					
				}else {
					validator = this._extractValidator(column.definition.validator);
					
					if(validator){
						config.push(validator);
					}
				}
				
				column.modules.validate = config.length ? config : false;
			}
		}
		
		_extractValidator(value){
			var type, params, pos;
			
			switch(typeof value){
				case "string":
					pos = value.indexOf(':');
				
					if(pos > -1){
						type = value.substring(0,pos);
						params = value.substring(pos+1);
					}else {
						type = value;
					}
				
					return this._buildValidator(type, params);
				
				case "function":
					return this._buildValidator(value);
				
				case "object":
					return this._buildValidator(value.type, value.parameters);
			}
		}
		
		_buildValidator(type, params){
			
			var func = typeof type == "function" ? type : Validate.validators[type];
			
			if(!func){
				console.warn("Validator Setup Error - No matching validator found:", type);
				return false;
			}else {
				return {
					type:typeof type == "function" ? "function" : type,
					func:func,
					params:params,
				};
			}
		}
		
		validate(validators, cell, value){
			var self = this,
			failedValidators = [],
			invalidIndex = this.invalidCells.indexOf(cell);
			
			if(validators){
				validators.forEach((item) => {
					if(!item.func.call(self, cell.getComponent(), value, item.params)){
						failedValidators.push({
							type:item.type,
							parameters:item.params
						});
					}
				});
			}
			
			if(!cell.modules.validate){
				cell.modules.validate = {};
			}
			
			if(!failedValidators.length){
				cell.modules.validate.invalid = false;
				cell.getElement().classList.remove("tabulator-validation-fail");
				
				if(invalidIndex > -1){
					this.invalidCells.splice(invalidIndex, 1);
				}
			}else {
				cell.modules.validate.invalid = failedValidators;
				
				if(this.table.options.validationMode !== "manual"){
					cell.getElement().classList.add("tabulator-validation-fail");
				}
				
				if(invalidIndex == -1){
					this.invalidCells.push(cell);
				}
			}
			
			return failedValidators.length ? failedValidators : true;
		}
		
		getInvalidCells(){
			var output = [];
			
			this.invalidCells.forEach((cell) => {
				output.push(cell.getComponent());
			});
			
			return output;
		}
		
		clearValidation(cell){
			var invalidIndex;
			
			if(cell.modules.validate && cell.modules.validate.invalid){
				
				cell.getElement().classList.remove("tabulator-validation-fail");
				cell.modules.validate.invalid = false;
				
				invalidIndex = this.invalidCells.indexOf(cell);
				
				if(invalidIndex > -1){
					this.invalidCells.splice(invalidIndex, 1);
				}
			}
		}
	}

	var allModules = /*#__PURE__*/Object.freeze({
		__proto__: null,
		AccessorModule: Accessor,
		AjaxModule: Ajax,
		ClipboardModule: Clipboard,
		ColumnCalcsModule: ColumnCalcs,
		DataTreeModule: DataTree,
		DownloadModule: Download,
		EditModule: Edit,
		ExportModule: Export,
		FilterModule: Filter,
		FormatModule: Format,
		FrozenColumnsModule: FrozenColumns,
		FrozenRowsModule: FrozenRows,
		GroupRowsModule: GroupRows,
		HistoryModule: History,
		HtmlTableImportModule: HtmlTableImport,
		ImportModule: Import,
		InteractionModule: Interaction,
		KeybindingsModule: Keybindings,
		MenuModule: Menu,
		MoveColumnsModule: MoveColumns,
		MoveRowsModule: MoveRows,
		MutatorModule: Mutator,
		PageModule: Page,
		PersistenceModule: Persistence,
		PopupModule: Popup,
		PrintModule: Print,
		ReactiveDataModule: ReactiveData,
		ResizeColumnsModule: ResizeColumns,
		ResizeRowsModule: ResizeRows,
		ResizeTableModule: ResizeTable,
		ResponsiveLayoutModule: ResponsiveLayout,
		SelectRangeModule: SelectRange,
		SelectRowModule: SelectRow,
		SortModule: Sort,
		SpreadsheetModule: Spreadsheet,
		TooltipModule: Tooltip,
		ValidateModule: Validate
	});

	//tabulator with all modules installed

	class TabulatorFull extends Tabulator {
		static extendModule(){
			Tabulator.initializeModuleBinder(allModules);
			Tabulator._extendModule(...arguments);
		}

		static registerModule(){
			Tabulator.initializeModuleBinder(allModules);
			Tabulator._registerModule(...arguments);
		}

		constructor(element, options, modules){
			super(element, options, allModules);
		}
	}

	var TabulatorFull$1 = TabulatorFull;

	return TabulatorFull$1;

}));
//# sourceMappingURL=tabulator.js.map