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slick.grid.js
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slick.grid.js
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/**
* @license
* (c) 2009-2016 Michael Leibman
* michael{dot}leibman{at}gmail{dot}com
* http://github.com/mleibman/slickgrid
*
* Distributed under MIT license.
* All rights reserved.
*
* SlickGrid v2.3
*
* NOTES:
* Cell/row DOM manipulations are done directly bypassing jQuery's DOM manipulation methods.
* This increases the speed dramatically, but can only be done safely because there are no event handlers
* or data associated with any cell/row DOM nodes. Cell editors must make sure they implement .destroy()
* and do proper cleanup.
*/
// make sure required JavaScript modules are loaded
if (typeof jQuery === "undefined") {
throw new Error("SlickGrid requires jquery module to be loaded");
}
if (!jQuery.fn.drag) {
throw new Error("SlickGrid requires jquery.event.drag module to be loaded");
}
if (typeof Slick === "undefined") {
throw new Error("slick.core.js not loaded");
}
(function ($) {
// Slick.Grid
$.extend(true, window, {
Slick: {
Grid: SlickGrid
}
});
// shared across all grids on the page
var scrollbarDimensions;
var maxSupportedCssHeight; // browser's breaking point
//////////////////////////////////////////////////////////////////////////////////////////////
// SlickGrid class implementation (available as Slick.Grid)
/**
* Creates a new instance of the grid.
* @class SlickGrid
* @constructor
* @param {Node} container Container node to create the grid in.
* @param {Array,Object} data An array of objects for databinding.
* @param {Array} columns An array of column definitions.
* @param {Object} options Grid options.
**/
function SlickGrid(container, data, columns, options) {
// settings
var defaults = {
alwaysShowVerticalScroll: false,
explicitInitialization: false,
rowHeight: 25,
defaultColumnWidth: 80,
enableAddRow: false,
leaveSpaceForNewRows: false,
editable: false,
autoEdit: true,
suppressActiveCellChangeOnEdit: false,
enableCellNavigation: true,
enableColumnReorder: true,
asyncEditorLoading: false,
asyncEditorLoadDelay: 100,
forceFitColumns: false,
enableAsyncPostRender: false,
asyncPostRenderDelay: 50,
enableAsyncPostRenderCleanup: false,
asyncPostRenderCleanupDelay: 40,
autoHeight: false,
editorLock: Slick.GlobalEditorLock,
showHeaderRow: false,
headerRowHeight: 25,
createFooterRow: false,
showFooterRow: false,
footerRowHeight: 25,
createPreHeaderPanel: false,
showPreHeaderPanel: false,
preHeaderPanelHeight: 25,
showTopPanel: false,
topPanelHeight: 25,
formatterFactory: null,
editorFactory: null,
cellFlashingCssClass: "flashing",
selectedCellCssClass: "selected",
multiSelect: true,
enableTextSelectionOnCells: false,
dataItemColumnValueExtractor: null,
fullWidthRows: false,
multiColumnSort: false,
numberedMultiColumnSort: false,
tristateMultiColumnSort: false,
sortColNumberInSeparateSpan: false,
defaultFormatter: defaultFormatter,
forceSyncScrolling: false,
addNewRowCssClass: "new-row",
preserveCopiedSelectionOnPaste: false,
showCellSelection: true,
viewportClass: null,
minRowBuffer: 3,
emulatePagingWhenScrolling: true, // when scrolling off bottom of viewport, place new row at top of viewport
editorCellNavOnLRKeys: false
};
var columnDefaults = {
name: "",
resizable: true,
sortable: false,
minWidth: 30,
rerenderOnResize: false,
headerCssClass: null,
defaultSortAsc: true,
focusable: true,
selectable: true
};
// scroller
var th; // virtual height
var h; // real scrollable height
var ph; // page height
var n; // number of pages
var cj; // "jumpiness" coefficient
var page = 0; // current page
var offset = 0; // current page offset
var vScrollDir = 1;
// private
var initialized = false;
var $container;
var uid = "slickgrid_" + Math.round(1000000 * Math.random());
var self = this;
// The focus anchor is used to receive keyboard focus when no cells are currently focusable.
// When the focus anchor receives focus, the focusable will be redirected to the active cell or the first
// focusable cell.
var $focusAnchor;
var $headerScroller;
var $headers;
var $headerRow, $headerRowScroller, $headerRowSpacer;
var $footerRow, $footerRowScroller, $footerRowSpacer;
var $preHeaderPanel, $preHeaderPanelScroller, $preHeaderPanelSpacer;
var $topPanelScroller;
var $topPanel;
var $viewport;
var $canvas;
var $style;
var $boundAncestors;
var stylesheet, columnCssRulesL, columnCssRulesR;
var viewportH, viewportW;
var canvasWidth;
var viewportHasHScroll, viewportHasVScroll;
var headerColumnWidthDiff = 0, headerColumnHeightDiff = 0, // border+padding
cellWidthDiff = 0, cellHeightDiff = 0, jQueryNewWidthBehaviour = false;
var absoluteColumnMinWidth;
var tabbingDirection = 1;
var activePosX;
var activeRow, activeCell;
var activeCellNode = null;
var currentEditor = null;
var serializedEditorValue;
var editController;
var rowsCache = {};
var renderedRows = 0;
var numVisibleRows;
var prevScrollTop = 0;
var scrollTop = 0;
var lastRenderedScrollTop = 0;
var lastRenderedScrollLeft = 0;
var prevScrollLeft = 0;
var scrollLeft = 0;
var selectionModel;
var selectedRows = [];
var plugins = [];
var cellCssClasses = {};
var columnsById = {};
var sortColumns = [];
var columnPosLeft = [];
var columnPosRight = [];
var pagingActive = false;
var pagingIsLastPage = false;
// async call handles
var h_editorLoader = null;
var h_render = null;
var h_postrender = null;
var h_postrenderCleanup = null;
var postProcessedRows = {};
var postProcessToRow = null;
var postProcessFromRow = null;
var postProcessedCleanupQueue = [];
var postProcessgroupId = 0;
// perf counters
var counter_rows_rendered = 0;
var counter_rows_removed = 0;
// These two variables work around a bug with inertial scrolling in Webkit/Blink on Mac.
// See http://crbug.com/312427.
var rowNodeFromLastMouseWheelEvent; // this node must not be deleted while inertial scrolling
var zombieRowNodeFromLastMouseWheelEvent; // node that was hidden instead of getting deleted
var zombieRowCacheFromLastMouseWheelEvent; // row cache for above node
var zombieRowPostProcessedFromLastMouseWheelEvent; // post processing references for above node
// store css attributes if display:none is active in container or parent
var cssShow = { position: 'absolute', visibility: 'hidden', display: 'block' };
var $hiddenParents;
var oldProps = [];
var columnResizeDragging = false;
//////////////////////////////////////////////////////////////////////////////////////////////
// Initialization
function init() {
if (container instanceof jQuery) {
$container = container;
} else {
$container = $(container);
}
if ($container.length < 1) {
throw new Error("SlickGrid requires a valid container, " + container + " does not exist in the DOM.");
}
cacheCssForHiddenInit();
// calculate these only once and share between grid instances
maxSupportedCssHeight = maxSupportedCssHeight || getMaxSupportedCssHeight();
options = $.extend({}, defaults, options);
validateAndEnforceOptions();
columnDefaults.width = options.defaultColumnWidth;
columnsById = {};
for (var i = 0; i < columns.length; i++) {
var m = columns[i] = $.extend({}, columnDefaults, columns[i]);
columnsById[m.id] = i;
if (m.minWidth && m.width < m.minWidth) {
m.width = m.minWidth;
}
if (m.maxWidth && m.width > m.maxWidth) {
m.width = m.maxWidth;
}
}
// validate loaded JavaScript modules against requested options
if (options.enableColumnReorder && !$.fn.sortable) {
throw new Error("SlickGrid's 'enableColumnReorder = true' option requires jquery-ui.sortable module to be loaded");
}
editController = {
"commitCurrentEdit": commitCurrentEdit,
"cancelCurrentEdit": cancelCurrentEdit
};
$container
.empty()
.css("overflow", "hidden")
.css("outline", 0)
.addClass(uid)
.attr('role', 'grid')
.attr('aria-rowcount', getDataLength())
.attr('aria-colcount', columns.length)
.attr('aria-readonly', options.editable ? 'false' : 'true')
.addClass("ui-widget");
// set up a positioning container if needed
if (!/relative|absolute|fixed/.test($container.css("position"))) {
$container.css("position", "relative");
}
$focusAnchor = $("<div tabIndex='0' hideFocus style='position:fixed;width:0;height:0;top:0;left:0;outline:0;'></div>").appendTo($container);
if (options.createPreHeaderPanel) {
$preHeaderPanelScroller = $("<div class='slick-preheader-panel ui-state-default' style='overflow:hidden;position:relative;' />").appendTo($container);
$preHeaderPanel = $("<div />").appendTo($preHeaderPanelScroller);
$preHeaderPanelSpacer = $("<div style='display:block;height:1px;position:absolute;top:0;left:0;'></div>")
.appendTo($preHeaderPanelScroller);
if (!options.showPreHeaderPanel) {
$preHeaderPanelScroller.hide();
}
}
$headerScroller = $("<div role='presentation' class='slick-header ui-state-default' />").appendTo($container);
$headers = $("<div role='row' class='slick-header-columns' style='left:-1000px' />").appendTo($headerScroller);
$headerRowScroller = $("<div role='presentation' class='slick-headerrow ui-state-default' />").appendTo($container);
$headerRow = $("<div role='presentation' class='slick-headerrow-columns' />").appendTo($headerRowScroller);
$headerRowSpacer = $("<div role='presentation' style='display:block;height:1px;position:absolute;top:0;left:0;'></div>")
.appendTo($headerRowScroller);
$topPanelScroller = $("<div role='presentation' class='slick-top-panel-scroller ui-state-default' />").appendTo($container);
$topPanel = $("<div role='presentation' class='slick-top-panel' style='width:10000px' />").appendTo($topPanelScroller);
if (!options.showTopPanel) {
$topPanelScroller.hide();
}
if (!options.showHeaderRow) {
$headerRowScroller.hide();
}
$viewport = $("<div role='presentation' class='slick-viewport' style='width:100%;overflow:auto;outline:0;position:relative;;'>").appendTo($container);
$viewport.css("overflow-y", options.alwaysShowVerticalScroll ? "scroll" : (options.autoHeight ? "hidden" : "auto"));
$viewport.css("overflow-x", options.forceFitColumns ? "hidden" : "auto");
if (options.viewportClass) $viewport.toggleClass(options.viewportClass, true);
$canvas = $("<div role='presentation' class='grid-canvas' />").appendTo($viewport);
scrollbarDimensions = scrollbarDimensions || measureScrollbar();
if ($preHeaderPanelSpacer) $preHeaderPanelSpacer.css("width", getCanvasWidth() + scrollbarDimensions.width + "px");
$headers.width(getHeadersWidth());
$headerRowSpacer.css("width", getCanvasWidth() + scrollbarDimensions.width + "px");
if (options.createFooterRow) {
$footerRowScroller = $("<div class='slick-footerrow ui-state-default' />").appendTo($container);
$footerRow = $("<div class='slick-footerrow-columns' />").appendTo($footerRowScroller);
$footerRowSpacer = $("<div style='display:block;height:1px;position:absolute;top:0;left:0;'></div>")
.css("width", getCanvasWidth() + scrollbarDimensions.width + "px")
.appendTo($footerRowScroller);
if (!options.showFooterRow) {
$footerRowScroller.hide();
}
}
if (!options.explicitInitialization) {
finishInitialization();
}
}
function finishInitialization() {
if (!initialized) {
initialized = true;
viewportW = parseFloat($.css($container[0], "width", true));
// header columns and cells may have different padding/border skewing width calculations (box-sizing, hello?)
// calculate the diff so we can set consistent sizes
measureCellPaddingAndBorder();
// for usability reasons, all text selection in SlickGrid is disabled
// with the exception of input and textarea elements (selection must
// be enabled there so that editors work as expected); note that
// selection in grid cells (grid body) is already unavailable in
// all browsers except IE
disableSelection($headers); // disable all text selection in header (including input and textarea)
if (!options.enableTextSelectionOnCells) {
// disable text selection in grid cells except in input and textarea elements
// (this is IE-specific, because selectstart event will only fire in IE)
$viewport.on("selectstart.ui", function (event) {
return $(event.target).is("input,textarea");
});
}
updateColumnCaches();
createColumnHeaders();
setupColumnSort();
createCssRules();
resizeCanvas();
bindAncestorScrollEvents();
$container
.on("resize.slickgrid", resizeCanvas);
$viewport
//.on("click", handleClick)
.on("scroll", handleScroll);
$headerScroller
//.on("scroll", handleHeaderScroll)
.on("contextmenu", handleHeaderContextMenu)
.on("click", handleHeaderClick)
.on("mouseenter", ".slick-header-column", handleHeaderMouseEnter)
.on("mouseleave", ".slick-header-column", handleHeaderMouseLeave);
$headerRowScroller
.on("scroll", handleHeaderRowScroll);
if (options.createFooterRow) {
$footerRowScroller
.on("scroll", handleFooterRowScroll);
}
if (options.createPreHeaderPanel) {
$preHeaderPanelScroller
.on("scroll", handlePreHeaderPanelScroll);
}
$canvas
.on("keydown", handleKeyDown)
.on("click", handleClick)
.on("dblclick", handleDblClick)
.on("contextmenu", handleContextMenu)
.on("draginit", handleDragInit)
.on("dragstart", {distance: 3}, handleDragStart)
.on("drag", handleDrag)
.on("dragend", handleDragEnd)
.on("mouseenter", ".slick-cell", handleMouseEnter)
.on("mouseleave", ".slick-cell", handleMouseLeave);
$focusAnchor.on("focus", handleFocusAnchorFocus);
// Work around http://crbug.com/312427.
if (navigator.userAgent.toLowerCase().match(/webkit/) &&
navigator.userAgent.toLowerCase().match(/macintosh/)) {
$canvas.on("mousewheel", handleMouseWheel);
}
restoreCssFromHiddenInit();
}
}
function handleFocusAnchorFocus() {
if(getDataLength() === 0) {
return;
}
let cellToFocus = getActiveCell();
if (!cellToFocus) {
for (let col = 0; col < columns.length; col++) {
// some cells are not keyboard focusable (e.g. row number column), we need to find the first focusable cell.
if (canCellBeActive(0, col)) {
cellToFocus = {
row: 0,
cell: col
};
break;
}
}
}
if(cellToFocus) {
setActiveCell(cellToFocus.row, cellToFocus.cell);
}
}
function cacheCssForHiddenInit() {
// handle display:none on container or container parents
$hiddenParents = $container.parents().addBack().not(':visible');
$hiddenParents.each(function() {
var old = {};
for ( var name in cssShow ) {
old[ name ] = this.style[ name ];
this.style[ name ] = cssShow[ name ];
}
oldProps.push(old);
});
}
function restoreCssFromHiddenInit() {
// finish handle display:none on container or container parents
// - put values back the way they were
$hiddenParents.each(function(i) {
var old = oldProps[i];
for ( var name in cssShow ) {
this.style[ name ] = old[ name ];
}
});
}
function registerPlugin(plugin) {
plugins.unshift(plugin);
plugin.init(self);
}
function unregisterPlugin(plugin) {
for (var i = plugins.length; i >= 0; i--) {
if (plugins[i] === plugin) {
if (plugins[i].destroy) {
plugins[i].destroy();
}
plugins.splice(i, 1);
break;
}
}
}
function setSelectionModel(model) {
if (selectionModel) {
selectionModel.onSelectedRangesChanged.unsubscribe(handleSelectedRangesChanged);
if (selectionModel.destroy) {
selectionModel.destroy();
}
}
selectionModel = model;
if (selectionModel) {
selectionModel.init(self);
selectionModel.onSelectedRangesChanged.subscribe(handleSelectedRangesChanged);
}
}
function getSelectionModel() {
return selectionModel;
}
function getCanvasNode() {
return $canvas[0];
}
function measureScrollbar() {
var $outerdiv = $('<div class="' + $viewport.className + '" style="position:absolute; top:-10000px; left:-10000px; overflow:auto; width:100px; height:100px;"></div>').appendTo($viewport);
var $innerdiv = $('<div style="width:200px; height:200px; overflow:auto;"></div>').appendTo($outerdiv);
var dim = {
width: $outerdiv[0].offsetWidth - $outerdiv[0].clientWidth,
height: $outerdiv[0].offsetHeight - $outerdiv[0].clientHeight
};
$innerdiv.remove();
$outerdiv.remove();
return dim;
}
function getColumnTotalWidth(includeScrollbar) {
var totalWidth = 0;
for (var i = 0, ii = columns.length; i < ii; i++) {
var width = columns[i].width;
totalWidth += width;
}
if (includeScrollbar) {
totalWidth += scrollbarDimensions.width;
}
return totalWidth;
}
function getHeadersWidth() {
var headersWidth = getColumnTotalWidth(!options.autoHeight);
return Math.max(headersWidth, viewportW) + 1000;
}
function getCanvasWidth() {
var availableWidth = viewportHasVScroll ? viewportW - scrollbarDimensions.width : viewportW;
var rowWidth = 0;
var i = columns.length;
while (i--) {
rowWidth += columns[i].width;
}
return options.fullWidthRows ? Math.max(rowWidth, availableWidth) : rowWidth;
}
function updateCanvasWidth(forceColumnWidthsUpdate) {
var oldCanvasWidth = canvasWidth;
canvasWidth = getCanvasWidth();
if (canvasWidth != oldCanvasWidth) {
$canvas.width(canvasWidth);
$headerRow.width(canvasWidth);
if (options.createFooterRow) { $footerRow.width(canvasWidth); }
if (options.createPreHeaderPanel) { $preHeaderPanel.width(canvasWidth); }
$headers.width(getHeadersWidth());
viewportHasHScroll = (canvasWidth > viewportW - scrollbarDimensions.width);
}
var w=canvasWidth + (viewportHasVScroll ? scrollbarDimensions.width : 0);
$headerRowSpacer.width(w);
if (options.createFooterRow) { $footerRowSpacer.width(w); }
if (options.createPreHeaderPanel) { $preHeaderPanelSpacer.width(w); }
if (canvasWidth != oldCanvasWidth || forceColumnWidthsUpdate) {
applyColumnWidths();
}
}
function disableSelection($target) {
if ($target && $target.jquery) {
$target
.attr("unselectable", "on")
.css("MozUserSelect", "none")
.on("selectstart.ui", function () {
return false;
}); // from jquery:ui.core.js 1.7.2
}
}
function getMaxSupportedCssHeight() {
var supportedHeight = 1000000;
// FF reports the height back but still renders blank after ~6M px
var testUpTo = navigator.userAgent.toLowerCase().match(/firefox/) ? 6000000 : 1000000000;
var div = $("<div style='display:none' />").appendTo(document.body);
while (true) {
var test = supportedHeight * 2;
div.css("height", test);
if (test > testUpTo || div.height() !== test) {
break;
} else {
supportedHeight = test;
}
}
div.remove();
return supportedHeight;
}
function getUID() {
return uid;
}
function getHeaderColumnWidthDiff() {
return headerColumnWidthDiff;
}
function getScrollbarDimensions() {
return scrollbarDimensions;
}
// TODO: this is static. need to handle page mutation.
function bindAncestorScrollEvents() {
var elem = $canvas[0];
while ((elem = elem.parentNode) != document.body && elem != null) {
// bind to scroll containers only
if (elem == $viewport[0] || elem.scrollWidth != elem.clientWidth || elem.scrollHeight != elem.clientHeight) {
var $elem = $(elem);
if (!$boundAncestors) {
$boundAncestors = $elem;
} else {
$boundAncestors = $boundAncestors.add($elem);
}
$elem.on("scroll." + uid, handleActiveCellPositionChange);
}
}
}
function unbindAncestorScrollEvents() {
if (!$boundAncestors) {
return;
}
$boundAncestors.off("scroll." + uid);
$boundAncestors = null;
}
function updateColumnHeader(columnId, title, toolTip) {
if (!initialized) { return; }
var idx = getColumnIndex(columnId);
if (idx == null) {
return;
}
var columnDef = columns[idx];
var $header = $headers.children().eq(idx);
if ($header) {
if (title !== undefined) {
columns[idx].name = title;
}
if (toolTip !== undefined) {
columns[idx].toolTip = toolTip;
}
trigger(self.onBeforeHeaderCellDestroy, {
"node": $header[0],
"column": columnDef,
"grid": self
});
$header
.attr("title", toolTip || "")
.children().eq(0).html(title);
trigger(self.onHeaderCellRendered, {
"node": $header[0],
"column": columnDef,
"grid": self
});
}
}
function getHeader() {
return $headers[0];
}
function getHeaderColumn(columnIdOrIdx) {
var idx = (typeof columnIdOrIdx === "number" ? columnIdOrIdx : getColumnIndex(columnIdOrIdx));
var $rtn = $headers.children().eq(idx);
return $rtn && $rtn[0];
}
function getHeaderRow() {
return $headerRow[0];
}
function getFooterRow() {
return $footerRow[0];
}
function getPreHeaderPanel() {
return $preHeaderPanel[0];
}
function getHeaderRowColumn(columnIdOrIdx) {
var idx = (typeof columnIdOrIdx === "number" ? columnIdOrIdx : getColumnIndex(columnIdOrIdx));
var $rtn = $headerRow.children().eq(idx);
return $rtn && $rtn[0];
}
function getFooterRowColumn(columnIdOrIdx) {
var idx = (typeof columnIdOrIdx === "number" ? columnIdOrIdx : getColumnIndex(columnIdOrIdx));
var $rtn = $footerRow.children().eq(idx);
return $rtn && $rtn[0];
}
function createColumnHeaders() {
function onMouseEnter() {
$(this).addClass("ui-state-hover");
}
function onMouseLeave() {
$(this).removeClass("ui-state-hover");
}
$headers.find(".slick-header-column")
.each(function() {
var columnDef = $(this).data("column");
if (columnDef) {
trigger(self.onBeforeHeaderCellDestroy, {
"node": this,
"column": columnDef,
"grid": self
});
}
});
$headers.empty();
$headers.width(getHeadersWidth());
$headerRow.find(".slick-headerrow-column")
.each(function() {
var columnDef = $(this).data("column");
if (columnDef) {
trigger(self.onBeforeHeaderRowCellDestroy, {
"node": this,
"column": columnDef,
"grid": self
});
}
});
$headerRow.empty();
if (options.createFooterRow) {
$footerRow.find(".slick-footerrow-column")
.each(function() {
var columnDef = $(this).data("column");
if (columnDef) {
trigger(self.onBeforeFooterRowCellDestroy, {
"node": this,
"column": columnDef
});
}
});
$footerRow.empty();
}
for (var i = 0; i < columns.length; i++) {
var m = columns[i];
var header = $("<div role='columnheader' class='ui-state-default slick-header-column' />")
.html("<span class='slick-column-name'>" + m.name + "</span>")
.width(m.width - headerColumnWidthDiff)
.attr("id", "" + uid + m.id)
.attr("title", m.toolTip || "")
.data("column", m)
.addClass(m.headerCssClass || "")
.appendTo($headers);
if (options.enableColumnReorder || m.sortable) {
header
.on('mouseenter', onMouseEnter)
.on('mouseleave', onMouseLeave);
}
if (m.sortable) {
header.addClass("slick-header-sortable");
header.append("<span class='slick-sort-indicator"
+ (options.numberedMultiColumnSort && !options.sortColNumberInSeparateSpan ? " slick-sort-indicator-numbered" : "" ) + "' />");
if (options.numberedMultiColumnSort && options.sortColNumberInSeparateSpan) { header.append("<span class='slick-sort-indicator-numbered' />"); }
}
trigger(self.onHeaderCellRendered, {
"node": header[0],
"column": m,
"grid": self
});
if (options.showHeaderRow) {
var headerRowCell = $("<div role='presentation' class='ui-state-default slick-headerrow-column l" + i + " r" + i + "'></div>")
.data("column", m)
.appendTo($headerRow);
trigger(self.onHeaderRowCellRendered, {
"node": headerRowCell[0],
"column": m,
"grid": self
});
}
if (options.createFooterRow && options.showFooterRow) {
var footerRowCell = $("<div class='ui-state-default slick-footerrow-column l" + i + " r" + i + "'></div>")
.data("column", m)
.appendTo($footerRow);
trigger(self.onFooterRowCellRendered, {
"node": footerRowCell[0],
"column": m
});
}
}
setSortColumns(sortColumns);
setupColumnResize();
if (options.enableColumnReorder) {
if (typeof options.enableColumnReorder == 'function') {
options.enableColumnReorder(self, $headers, headerColumnWidthDiff, setColumns, setupColumnResize, columns, getColumnIndex, uid, trigger);
} else {
setupColumnReorder();
}
}
}
function setupColumnSort() {
// Clear the click handler if we have one already
$headers.off('click.sort');
// Only add a click handler if we have any columns that are sortable - this avoids screenreaders unnecessarily announcing 'clickable'
// when there isn't any click actions
if (columns.find(c => c.sortable)) {
$headers.on('click.sort', (function (e) {
if (columnResizeDragging) return;
// temporary workaround for a bug in jQuery 1.7.1 (http://bugs.jquery.com/ticket/11328)
e.metaKey = e.metaKey || e.ctrlKey;
if ($(e.target).hasClass("slick-resizable-handle")) {
return;
}
var $col = $(e.target).closest(".slick-header-column");
if (!$col.length) {
return;
}
var column = $col.data("column");
if (column.sortable) {
if (!getEditorLock().commitCurrentEdit()) {
return;
}
var sortColumn = null;
var i = 0;
for (; i < sortColumns.length; i++) {
if (sortColumns[i].columnId == column.id) {
sortColumn = sortColumns[i];
sortColumn.sortAsc = !sortColumn.sortAsc;
break;
}
}
var hadSortCol = !!sortColumn;
if (options.tristateMultiColumnSort) {
if (!sortColumn) {
sortColumn = { columnId: column.id, sortAsc: column.defaultSortAsc };
}
if (hadSortCol && sortColumn.sortAsc) {
// three state: remove sort rather than go back to ASC
sortColumns.splice(i, 1);
sortColumn = null;
}
if (!options.multiColumnSort) { sortColumns = []; }
if (sortColumn && (!hadSortCol || !options.multiColumnSort)) {
sortColumns.push(sortColumn);
}
} else {
// legacy behaviour
if (e.metaKey && options.multiColumnSort) {
if (sortColumn) {
sortColumns.splice(i, 1);
}
}
else {
if ((!e.shiftKey && !e.metaKey) || !options.multiColumnSort) {
sortColumns = [];
}
if (!sortColumn) {
sortColumn = { columnId: column.id, sortAsc: column.defaultSortAsc };
sortColumns.push(sortColumn);
} else if (sortColumns.length == 0) {
sortColumns.push(sortColumn);
}
}
}
setSortColumns(sortColumns);
if (!options.multiColumnSort) {
trigger(self.onSort, {
multiColumnSort: false,
sortCol: (sortColumns.length > 0 ? column : null),
sortAsc: (sortColumns.length > 0 ? sortColumns[0].sortAsc : true),
grid: self}, e);
} else {
trigger(self.onSort, {
multiColumnSort: true,
sortCols: $.map(sortColumns, function(col) {
return {sortCol: columns[getColumnIndex(col.columnId)], sortAsc: col.sortAsc };
}),
grid: self}, e);
}
}
})
);
}
}
function setupColumnReorder() {
$headers.filter(":ui-sortable").sortable("destroy");
$headers.sortable({
containment: "parent",
distance: 3,
axis: "x",
cursor: "default",
tolerance: "intersection",
helper: "clone",
placeholder: "slick-sortable-placeholder ui-state-default slick-header-column",
start: function (e, ui) {
ui.placeholder.width(ui.helper.outerWidth() - headerColumnWidthDiff);
$(ui.helper).addClass("slick-header-column-active");
},
beforeStop: function (e, ui) {
$(ui.helper).removeClass("slick-header-column-active");
},
stop: function (e) {
if (!getEditorLock().commitCurrentEdit()) {
$(this).sortable("cancel");
return;
}
var reorderedIds = $headers.sortable("toArray");
var reorderedColumns = [];
for (var i = 0; i < reorderedIds.length; i++) {
reorderedColumns.push(columns[getColumnIndex(reorderedIds[i].replace(uid, ""))]);
}
setColumns(reorderedColumns);
trigger(self.onColumnsReordered, {grid: self});
e.stopPropagation();
setupColumnResize();
}
});
}
function setupColumnResize() {
var $col, j, c, pageX, columnElements, minPageX, maxPageX, firstResizable, lastResizable;
columnElements = $headers.children();
columnElements.find(".slick-resizable-handle").remove();
columnElements.each(function (i, e) {
if (i >= columns.length) { return; }
if (columns[i].resizable) {
if (firstResizable === undefined) {
firstResizable = i;
}
lastResizable = i;
}
});
if (firstResizable === undefined) {
return;
}
columnElements.each(function (i, e) {
if (i >= columns.length) { return; }
if (i < firstResizable || (options.forceFitColumns && i >= lastResizable)) {
return;
}
$col = $(e);
$("<div role='presentation' class='slick-resizable-handle' />")
.appendTo(e)
.on("dragstart", function (e, dd) {
if (!getEditorLock().commitCurrentEdit()) {
return false;
}
pageX = e.pageX;
$(this).parent().addClass("slick-header-column-active");
var shrinkLeewayOnRight = null, stretchLeewayOnRight = null;
// lock each column's width option to current width
columnElements.each(function (i, e) {
if (i >= columns.length) { return; }
columns[i].previousWidth = $(e).outerWidth();
});
if (options.forceFitColumns) {
shrinkLeewayOnRight = 0;
stretchLeewayOnRight = 0;
// colums on right affect maxPageX/minPageX
for (j = i + 1; j < columns.length; j++) {
c = columns[j];
if (c.resizable) {
if (stretchLeewayOnRight !== null) {
if (c.maxWidth) {
stretchLeewayOnRight += c.maxWidth - c.previousWidth;
} else {
stretchLeewayOnRight = null;
}
}