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slick.grid.js
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slick.grid.js
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/**
* @license
* (c) 2009-2013 Michael Leibman
* michael{dot}leibman{at}gmail{dot}com
* http://github.com/mleibman/slickgrid
*
* (c) 2015 Frontier Strategy Group
* https://github.com/Termato/SlickGrid
*
* Distributed under MIT license.
* All rights reserved.
*
* SlickGrid v2.3
* branched from Michael Leibman's SlickGrid v2.2
*
* 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.
*
* TODO: Scroll the viewport during column reorder
*/
// make sure required JavaScript modules are loaded
if (typeof jQuery === "undefined") {
throw "SlickGrid requires jquery module to be loaded";
}
if (!jQuery.fn.drag) {
throw "SlickGrid requires jquery.event.drag module to be loaded";
}
if (typeof Slick === "undefined") {
throw "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, columnDefs, options) {
// settings
var defaults = {
explicitInitialization: false,
rowHeight: 25,
defaultColumnWidth: 80,
enableAddRow: false,
leaveSpaceForNewRows: false,
editable: false,
autoEdit: true,
enableCellNavigation: true,
enableColumnReorder: true,
asyncEditorLoading: false,
asyncEditorLoadDelay: 100,
forceFitColumns: false,
enableAsyncPostRender: false,
asyncPostRenderDelay: 50,
autoHeight: false,
editorLock: Slick.GlobalEditorLock,
showHeaderRow: false,
headerRowHeight: 25,
showTopPanel: false,
topPanelHeight: 25,
formatterFactory: null,
editorFactory: null,
cellFlashingCssClass: "flashing",
selectedCellCssClass: "selected",
multiSelect: true,
enableTextSelectionOnCells: false,
dataItemColumnValueExtractor: null,
fullWidthRows: false,
multiColumnSort: false,
defaultFormatter: defaultFormatter,
forceSyncScrolling: false,
addNewRowCssClass: "new-row"
};
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;
var $focusSink, $focusSink2;
var $headerScroller;
var $headers;
var $headerRow, $headerRowScroller, $headerRowSpacer, $spanHeaders;
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;
var absoluteColumnMinWidth;
var numberOfRows = 0;
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 columns = [];
var columnsById = {};
var sortColumns = [];
var columnPosLeft = [];
var columnPosRight = [];
var spanColumns = [];
var headerGrouping = false;
// async call handles
var h_editorLoader = null;
var h_render = null;
var h_postrender = null;
var postProcessedRows = {};
var postProcessToRow = null;
var postProcessFromRow = null;
// 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
//////////////////////////////////////////////////////////////////////////////////////////////
// Initialization
function init() {
$container = $(container);
if ($container.length < 1) {
throw new Error("SlickGrid requires a valid container, " + container + " does not exist in the DOM.");
}
// calculate these only once and share between grid instances
maxSupportedCssHeight = maxSupportedCssHeight || getMaxSupportedCssHeight();
scrollbarDimensions = scrollbarDimensions || measureScrollbar();
options = $.extend({}, defaults, options);
validateAndEnforceOptions();
columnDefaults.width = options.defaultColumnWidth;
initializeColumns();
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
};
$container
.empty()
.css("overflow", "hidden")
.css("outline", 0)
.addClass(uid)
.addClass("ui-widget");
// set up a positioning container if needed
if (!/relative|absolute|fixed/.test($container.css("position"))) {
$container.css("position", "relative");
}
$focusSink = $("<div tabIndex='0' hideFocus style='position:fixed;width:0;height:0;top:0;left:0;outline:0;'></div>").appendTo($container);
$headerScroller = $("<div class='slick-header ui-state-default' style='overflow:hidden;position:relative;' />").appendTo($container);
$spanHeaders = $("<div class='slick-header-columns' style='left:-1000px' />").appendTo($headerScroller);
$headers = $("<div class='slick-header-columns' style='left:-1000px' />").appendTo($headerScroller);
$headers.width(getHeadersWidth());
$headerRowScroller = $("<div class='slick-headerrow ui-state-default' style='overflow:hidden;position:relative;' />").appendTo($container);
$headerRow = $("<div class='slick-headerrow-columns' />").appendTo($headerRowScroller);
$headerRowSpacer = $("<div style='display:block;height:1px;position:absolute;top:0;left:0;'></div>")
.css("width", getCanvasWidth() + scrollbarDimensions.width + "px")
.appendTo($headerRowScroller);
$topPanelScroller = $("<div class='slick-top-panel-scroller ui-state-default' style='overflow:hidden;position:relative;' />").appendTo($container);
$topPanel = $("<div class='slick-top-panel' style='width:10000px' />").appendTo($topPanelScroller);
if (!options.showTopPanel) {
$topPanelScroller.hide();
}
if (!options.showHeaderRow) {
$headerRowScroller.hide();
}
$viewport = $("<div class='slick-viewport' style='width:100%;overflow:auto;outline:0;position:relative;;'>").appendTo($container);
$viewport.css("overflow-y", options.autoHeight ? "hidden" : "auto");
$canvas = $("<div class='grid-canvas' />").appendTo($viewport);
$focusSink2 = $focusSink.clone().appendTo($container);
if (!options.explicitInitialization) {
finishInitialization();
}
}
function initializeColumns() {
//var lastIndex = 0;
for (var i = 0; i < columnDefs.length; i++) {
//lastIndex = (lastIndex == 0) ? i : (lastIndex + 1);
spanColumns[i] = {
name: '',
startIndex: columns.length,
endIndex: i,
addColumWidthDiff: false
};
if (typeof columnDefs[i].columns == 'object') {
for (var j = 0; j < columnDefs[i].columns.length; j++) {
//lastIndex = i + j;
columns[columns.length] = columnDefs[i].columns[j];
spanColumns[i].name = columnDefs[i].name;
//spanColumns[i].endIndex = lastIndex;
spanColumns[i].addColumWidthDiff = true;
spanColumns[i].headerCssClass = 'headerAlignWithBorder';
headerGrouping = true;
}
spanColumns[i].endIndex = spanColumns[i].startIndex + (columnDefs[i].columns.length - 1);
} else {
spanColumns[i].name = '';
columns[columns.length] = columnDefs[i];
}
}
}
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.bind("selectstart.ui", function (event) {
return $(event.target).is("input,textarea");
});
}
updateColumnCaches();
createColumnHeaders();
setupColumnSort();
createCssRules();
resizeCanvas();
bindAncestorScrollEvents();
$container
.bind("resize.slickgrid", resizeCanvas);
$viewport
//.bind("click", handleClick)
.bind("scroll", handleScroll);
$headerScroller
.bind("contextmenu", handleHeaderContextMenu)
.bind("click", handleHeaderClick)
.delegate(".slick-header-column", "mouseenter", handleHeaderMouseEnter)
.delegate(".slick-header-column", "mouseleave", handleHeaderMouseLeave);
$headerRowScroller
.bind("scroll", handleHeaderRowScroll);
$focusSink.add($focusSink2)
.bind("keydown", handleKeyDown);
$canvas
.bind("keydown", handleKeyDown)
.bind("click", handleClick)
.bind("dblclick", handleDblClick)
.bind("contextmenu", handleContextMenu)
.bind("draginit", handleDragInit)
.bind("dragstart", {distance: 3}, handleDragStart)
.bind("drag", handleDrag)
.bind("dragend", handleDragEnd)
.delegate(".slick-cell", "mouseenter", handleMouseEnter)
.delegate(".slick-cell", "mouseleave", handleMouseLeave);
// Work around http://crbug.com/312427.
if (navigator.userAgent.toLowerCase().match(/webkit/) &&
navigator.userAgent.toLowerCase().match(/macintosh/)) {
$canvas.bind("mousewheel", handleMouseWheel);
}
}
}
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 $c = $("<div style='position:absolute; top:-10000px; left:-10000px; width:100px; height:100px; overflow:scroll;'></div>").appendTo("body");
var dim = {
width: $c.width() - $c[0].clientWidth,
height: $c.height() - $c[0].clientHeight
};
$c.remove();
return dim;
}
function getHeadersWidth() {
var headersWidth = 0;
for (var i = 0, ii = columns.length; i < ii; i++) {
var width = columns[i].width;
headersWidth += width;
}
headersWidth += scrollbarDimensions.width;
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);
$headers.width(getHeadersWidth());
viewportHasHScroll = (canvasWidth > viewportW - scrollbarDimensions.width);
}
$headerRowSpacer.width(canvasWidth + (viewportHasVScroll ? scrollbarDimensions.width : 0));
if (canvasWidth != oldCanvasWidth || forceColumnWidthsUpdate) {
applyColumnWidths();
}
}
function disableSelection($target) {
if ($target && $target.jquery) {
$target
.attr("unselectable", "on")
.css("MozUserSelect", "none")
.bind("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;
}
// 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);
}
$elem.bind("scroll." + uid, handleActiveCellPositionChange);
}
}
}
function unbindAncestorScrollEvents() {
if (!$boundAncestors) {
return;
}
$boundAncestors.unbind("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
});
$header.attr("title", toolTip || "").children().eq(0).html(title);
trigger(self.onHeaderCellRendered, {
"node": $header[0],
"column": columnDef
});
}
}
function getHeaderRow() {
return $headerRow[0];
}
function getHeaderRowColumn(columnId) {
var idx = getColumnIndex(columnId);
var $header = $headerRow.children().eq(idx);
return $header && $header[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
});
}
});
$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
});
}
});
$headerRow.empty();
for (var i = 0; i < columns.length; i++) {
var oneColumn = columns[i];
var header = $("<div class='ui-state-default slick-header-column' />")
.html("<span class='slick-column-name'>" + oneColumn.name + "</span>")
.width(oneColumn.width - headerColumnWidthDiff)
.attr("id", "" + uid + oneColumn.id)
.attr("title", oneColumn.toolTip || "")
.data("column", oneColumn)
.addClass(oneColumn.headerCssClass || "")
.appendTo($headers);
if (options.enableColumnReorder || oneColumn.sortable) {
header
.on('mouseenter', onMouseEnter)
.on('mouseleave', onMouseLeave);
}
if (oneColumn.sortable) {
header.addClass("slick-header-sortable");
header.append("<span class='slick-sort-indicator' />");
}
trigger(self.onHeaderCellRendered, {
"node": header[0],
"column": oneColumn
});
if (options.showHeaderRow) {
var headerRowCell = $("<div class='ui-state-default slick-headerrow-column l" + i + " r" + i + "'></div>")
.data("column", oneColumn)
.appendTo($headerRow);
trigger(self.onHeaderRowCellRendered, {
"node": headerRowCell[0],
"column": oneColumn
});
}
}
setSortColumns(sortColumns);
setupColumnResize();
if (options.enableColumnReorder) {
setupColumnReorder();
}
createSpanHeaderRow();
}
//Method used to create Spanned header row
function createSpanHeaderRow() {
if (!headerGrouping) {
$spanHeaders.remove();
return;
}
$spanHeaders.empty();
//$headers.width(getHeadersWidth());
for (var i = 0; i < spanColumns.length; i++) {
var oneColumn = spanColumns[i];
var index = oneColumn.startIndex;
var width = 0;
do {
width += $($($headers).children().get(index)).width();
index++;
} while (index <= oneColumn.endIndex);
if (oneColumn.addColumWidthDiff)
width += headerColumnWidthDiff;
var header = $("<div class='ui-state-default slick-header-column' id='" + uid + oneColumn.id + "' />")
.html("<span class='slick-column-name'>" + oneColumn.name + "</span>")
.width(width)
.attr("title", oneColumn.toolTip || "")
.data("column", oneColumn)
.addClass(oneColumn.headerCssClass || "")
.appendTo($spanHeaders);
}
$($spanHeaders).width($($headers).width());
}
function setupColumnSort() {
$headers.click(function (e) {
// temporary workaround for a bug in jQuery 1.7.1 (http://bugs.jquery.com/ticket/11328)
e.metaKey = e.metaKey || e.ctrlKey;
if ($(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 sortOpts = null;
var i = 0;
for (; i < sortColumns.length; i++) {
if (sortColumns[i].columnId == column.id) {
sortOpts = sortColumns[i];
sortOpts.sortAsc = !sortOpts.sortAsc;
break;
}
}
if (e.metaKey && options.multiColumnSort) {
if (sortOpts) {
sortColumns.splice(i, 1);
}
}
else {
if ((!e.shiftKey && !e.metaKey) || !options.multiColumnSort) {
sortColumns = [];
}
if (!sortOpts) {
sortOpts = { columnId: column.id, sortAsc: column.defaultSortAsc };
sortColumns.push(sortOpts);
} else if (sortColumns.length == 0) {
sortColumns.push(sortOpts);
}
}
setSortColumns(sortColumns);
if (!options.multiColumnSort) {
trigger(self.onSort, {
multiColumnSort: false,
sortCol: column,
sortAsc: sortOpts.sortAsc}, e);
} else {
trigger(self.onSort, {
multiColumnSort: true,
sortCols: $.map(sortColumns, function(col) {
return {sortCol: columns[getColumnIndex(col.columnId)], sortAsc: col.sortAsc };
})}, e);
}
}
});
}
function setupColumnReorder() {
$headers.filter(":ui-sortable").sortable("destroy");
var columnScrollTimer = null;
var viewportLeft = $viewport.offset().left;
function scrollColumnsRight() {
$viewport[0].scrollLeft = $viewport[0].scrollLeft + 10;
}
function scrollColumnsLeft() {
$viewport[0].scrollLeft = $viewport[0].scrollLeft - 10;
}
$headers.sortable({
containment: "parent",
distance: 3,
axis: "x",
cursor: "default",
tolerance: "intersection",
helper: "clone",
placeholder: "slick-sortable-placeholder ui-state-default slick-header-column",
forcePlaceholderSize: true,
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");
},
sort: function(e, ui) {
if ( e.originalEvent.pageX > $viewport[0].clientWidth ) {
if ( !( columnScrollTimer ) ) {
columnScrollTimer = setInterval(scrollColumnsRight, 100);
}
} else if ( e.originalEvent.pageX < viewportLeft ) {
if ( !( columnScrollTimer ) ) {
columnScrollTimer = setInterval(scrollColumnsLeft, 100);
}
} else {
clearInterval(columnScrollTimer);
columnScrollTimer = null;
}
},
stop: function (e) {
clearInterval( columnScrollTimer );
columnScrollTimer = null;
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, {});
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 (columns[i].resizable) {
if (firstResizable === undefined)
firstResizable = i;
lastResizable = i;
}
});
if (firstResizable === undefined)
return;
columnElements.each(function (i, e) {
if (i < firstResizable || (options.forceFitColumns && i >= lastResizable)) {
return;
}
$col = $(e);
$("<div class='slick-resizable-handle' />").appendTo(e).bind("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) {
columns[i].previousWidth = $(e).outerWidth();
});
if (options.forceFitColumns) {
shrinkLeewayOnRight = 0;
stretchLeewayOnRight = 0;
// colums on right affect maxPageX/minPageX
for (j = i + 1; j < columnElements.length; j++) {
c = columns[j];
if (c.resizable) {
if (stretchLeewayOnRight !== null) {
if (c.maxWidth)
stretchLeewayOnRight += c.maxWidth - c.previousWidth;
else
stretchLeewayOnRight = null;
}
shrinkLeewayOnRight += c.previousWidth - Math.max(c.minWidth || 0, absoluteColumnMinWidth);
}
}
}
var shrinkLeewayOnLeft = 0, stretchLeewayOnLeft = 0;
for (j = 0; j <= i; j++) {
// columns on left only affect minPageX
c = columns[j];
if (c.resizable) {
if (stretchLeewayOnLeft !== null) {
if (c.maxWidth) {
stretchLeewayOnLeft += c.maxWidth - c.previousWidth;
} else {
stretchLeewayOnLeft = null;
}
}
shrinkLeewayOnLeft += c.previousWidth - Math.max(c.minWidth || 0, absoluteColumnMinWidth);
}
}
if (shrinkLeewayOnRight === null)
shrinkLeewayOnRight = 100000;
if (shrinkLeewayOnLeft === null)
shrinkLeewayOnLeft = 100000;
if (stretchLeewayOnRight === null)
stretchLeewayOnRight = 100000;
if (stretchLeewayOnLeft === null)
stretchLeewayOnLeft = 100000;
maxPageX = pageX + Math.min(shrinkLeewayOnRight, stretchLeewayOnLeft);
minPageX = pageX - Math.min(shrinkLeewayOnLeft, stretchLeewayOnRight);
}).bind("drag", function (e, dd) {
var actualMinWidth, d = Math.min(maxPageX, Math.max(minPageX, e.pageX)) - pageX, x;
if (d < 0) { // shrink column
x = d;
for (j = i; j >= 0; j--) {
c = columns[j];
if (c.resizable) {
actualMinWidth = Math.max(c.minWidth || 0, absoluteColumnMinWidth);
if (x && c.previousWidth + x < actualMinWidth) {
x += c.previousWidth - actualMinWidth;
c.width = actualMinWidth;
} else {
c.width = c.previousWidth + x;
x = 0;
}
}
}
if (options.forceFitColumns) {
x = -d;
for (j = i + 1; j < columnElements.length; j++) {
c = columns[j];
if (c.resizable) {
if (x && c.maxWidth && (c.maxWidth - c.previousWidth < x)) {
x -= c.maxWidth - c.previousWidth;
c.width = c.maxWidth;
} else {
c.width = c.previousWidth + x;
x = 0;
}
}
}
}
} else { // stretch column
x = d;
for (j = i; j >= 0; j--) {
c = columns[j];
if (c.resizable) {
if (x && c.maxWidth && (c.maxWidth - c.previousWidth < x)) {
x -= c.maxWidth - c.previousWidth;
c.width = c.maxWidth;
} else {
c.width = c.previousWidth + x;
x = 0;
}
}
}
if (options.forceFitColumns) {
x = -d;
for (j = i + 1; j < columnElements.length; j++) {
c = columns[j];
if (c.resizable) {
actualMinWidth = Math.max(c.minWidth || 0, absoluteColumnMinWidth);
if (x && c.previousWidth + x < actualMinWidth) {
x += c.previousWidth - actualMinWidth;
c.width = actualMinWidth;
} else {
c.width = c.previousWidth + x;
x = 0;
}
}
}
}
}
applyColumnHeaderWidths();
if (options.syncColumnCellResize)
applyColumnWidths();
}).bind("dragend", function (e, dd) {
var newWidth;
$(this).parent().removeClass("slick-header-column-active");
for (j = 0; j < columnElements.length; j++) {
c = columns[j];
newWidth = $(columnElements[j]).outerWidth();
if (c.previousWidth !== newWidth && c.rerenderOnResize)
invalidateAllRows();
}
updateCanvasWidth(true);
render();
trigger(self.onColumnsResized, {});
createSpanHeaderRow();
});
});
}
function getVBoxDelta($el) {
var p = ["borderTopWidth", "borderBottomWidth", "paddingTop", "paddingBottom"];
var delta = 0;
$.each(p, function (n, val) {
delta += parseFloat($el.css(val)) || 0;
});
return delta;
}
function measureCellPaddingAndBorder() {
var el;
var h = ["borderLeftWidth", "borderRightWidth", "paddingLeft", "paddingRight"];
var v = ["borderTopWidth", "borderBottomWidth", "paddingTop", "paddingBottom"];
el = $("<div class='ui-state-default slick-header-column' style='visibility:hidden'>-</div>").appendTo($headers);
headerColumnWidthDiff = headerColumnHeightDiff = 0;
if (el.css("box-sizing") != "border-box" && el.css("-moz-box-sizing") != "border-box" && el.css("-webkit-box-sizing") != "border-box") {
$.each(h, function (n, val) {
headerColumnWidthDiff += parseFloat(el.css(val)) || 0;
});
$.each(v, function (n, val) {
headerColumnHeightDiff += parseFloat(el.css(val)) || 0;
});
}
el.remove();
var r = $("<div class='slick-row' />").appendTo($canvas);
el = $("<div class='slick-cell' id='' style='visibility:hidden'>-</div>").appendTo(r);
cellWidthDiff = cellHeightDiff = 0;
if (el.css("box-sizing") != "border-box" && el.css("-moz-box-sizing") != "border-box" && el.css("-webkit-box-sizing") != "border-box") {
$.each(h, function (n, val) {
cellWidthDiff += parseFloat(el.css(val)) || 0;
});
$.each(v, function (n, val) {
cellHeightDiff += parseFloat(el.css(val)) || 0;
});
}
r.remove();