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slick.grid.js
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slick.grid.js
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/*jslint white: false, onevar: false, undef: true, nomen: true, eqeqeq: true, plusplus: false, bitwise: true, regexp: true, strict: true, newcap: true, immed: true */// Force JSLinq (http://jslint.com/) "Good Parts" flags - (strict whitespace, one var per function, disallow ++/--)
/*global $: false, jQuery: false, window: false, console: false, document: false, alert: false, setTimeout: false, clearTimeout: false, Slick: false */// Define recognized globals for JSLint
/*global commitCurrentEdit: true, cancelCurrentEdit: false, measureCellPaddingAndBorder: false, createColumnHeaders: false, setupRowReordering: false, createCssRules: false, resizeCanvas: false, autosizeColumns: false, render: false, handleScroll: false, handleKeyDown: false, handleClick: false, handleDblClick: false, handleContextMenu: false, handleHeaderContextMenu: false, setupColumnSort: false, setupColumnResize: false, setupColumnReorder: false, removeAllRows: false, removeCssRules: false, setupColumnResize: false, removeAllRows: false, updateColumnWidth: false, setSelectedRows: false, getSelectedRows: false, makeSelectedCellNormal: false, removeRow: false, removeRowFromCache: false, invalidatePostProcessingResults: false, asyncPostProcessRows: false, gotoDir: false, makeSelectedCellEditable: false, setSelectedCellAndRow: false, gotoCell: false, scrollSelectedCellIntoView: false, isCellPotentiallyEditable: false, styleColumnWidth: false */
"use strict";
/**
* @license
* (c) 2009-2010 Michael Leibman ([email protected])
* All rights reserved.
*
* SlickGrid v1.3.2
*
* TODO:
* - frozen columns
* - consistent events (EventHelper? jQuery events?)
*
*
* OPTIONS:
* rowHeight - (default 25px) Row height in pixels.
* enableAddRow - (default false) If true, a blank row will be displayed at the bottom - typing values in that row will add a new one.
* leaveSpaceForNewRows - (default false)
* editable - (default false) If false, no cells will be switched into edit mode.
* autoEdit - (default true) Cell will not automatically go into edit mode when selected.
* enableCellNavigation - (default true) If false, no cells will be selectable.
* defaultColumnWidth - (default 80px) Default column width in pixels (if columns[cell].width is not specified).
* enableColumnReorder - (default true) Allows the user to reorder columns.
* asyncEditorLoading - (default false) Makes cell editors load asynchronously after a small delay.
* This greatly increases keyboard navigation speed.
* asyncEditorLoadDelay - (default 100msec) Delay after which cell editor is loaded. Ignored unless asyncEditorLoading is true.
* forceFitColumns - (default false) Force column sizes to fit into the viewport (avoid horizontal scrolling).
* enableAsyncPostRender - (default false) If true, async post rendering will occur and asyncPostRender delegates on columns will be called.
* asyncPostRenderDelay - (default 60msec) Delay after which async post renderer delegate is called.
* autoHeight - (default false) If true, vertically resizes to fit all rows.
* editorLock - (default Slick.GlobalEditorLock) A Slick.EditorLock instance to use for controlling concurrent data edits.
* showSecondaryHeaderRow - (default false) If true, an extra blank (to be populated externally) row will be displayed just below the header columns.
* secondaryHeaderRowHeight - (default 25px) The height of the secondary header row.
* syncColumnCellResize - (default false) Synchronously resize column cells when column headers are resized
* rowCssClasses - (default null) A function which (given a row's data item as an argument) returns a space-delimited string of CSS classes that will be applied to the slick-row element. Note that this should be fast, as it is called every time a row is displayed.
*
*
* COLUMN DEFINITION (columns) OPTIONS:
* id - Column ID.
* name - Column name to put in the header.
* toolTip - Tooltip (if different from name).
* field - Property of the data context to bind to.
* formatter - (default 'return value || ""') Function responsible for rendering the contents of a cell. Signature: function formatter(row, cell, value, columnDef, dataContext) { ... return "..."; }
* editor - An Editor class.
* validator - An extra validation function to be passed to the editor.
* unselectable - If true, the cell cannot be selected (and therefore edited).
* cannotTriggerInsert - If true, a new row cannot be created from just the value of this cell.
* setValueHandler - If true, this handler will be called to set field value instead of context[field].
* width - Width of the column in pixels.
* resizable - (default true) If false, the column cannot be resized.
* sortable - (default false) If true, the column can be sorted (onSort will be called).
* minWidth - Minimum allowed column width for resizing.
* maxWidth - Maximum allowed column width for resizing.
* cssClass - A CSS class to add to the cell.
* rerenderOnResize - Rerender the column when it is resized (useful for columns relying on cell width or adaptive formatters).
* asyncPostRender - Function responsible for manipulating the cell DOM node after it has been rendered (called in the background).
* behavior - Configures the column with one of several available predefined behaviors: "select", "move", "selectAndMove".
*
*
* EVENTS:
* onSort -
* onHeaderContextMenu -
* onClick -
* onDblClick -
* onContextMenu -
* onKeyDown -
* onAddNewRow -
* onValidationError -
* onViewportChanged -
* onSelectedRowsChanged -
* onColumnsReordered -
* onColumnsResized -
* onBeforeMoveRows -
* onMoveRows -
* onCellChange - Raised when cell has been edited. Args: row,cell,dataContext.
* onBeforeEditCell - Raised before a cell goes into edit mode. Return false to cancel. Args: row,cell,dataContext.
* onBeforeDestroy - Raised just before the grid control is destroyed (part of the destroy() method).
*
*
* 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.
*
*
* @param {jQuery} $container Container object to create the grid in.
* @param {Array} or {Object} data An array of objects for databinding.
* @param {Array} columns An array of column definitions.
* @param {Object} options Grid options.
*/
// make sure required JavaScript modules are loaded
if (typeof jQuery === "undefined") {
throw new Error("SlickGrid requires jquery module to be loaded");
}
if (!jQuery.rule) {
throw new Error("SlickGrid requires jquery.rule module to be loaded");
}
if (!jQuery.fn.drag) {
throw new Error("SlickGrid requires jquery.event.drag module to be loaded");
}
(function($) {
var scrollbarDimensions; // shared across all grids on this page
//////////////////////////////////////////////////////////////////////////////////////////////
// EditorLock class implementation (available as Slick.EditorLock)
/** @constructor */
function EditorLock() {
/// <summary>
/// Track currently active edit controller and ensure
/// that onle a single controller can be active at a time.
/// Edit controller is an object that is responsible for
/// gory details of looking after editor in the browser,
/// and allowing EditorLock clients to either accept
/// or cancel editor changes without knowing any of the
/// implementation details. SlickGrid instance is used
/// as edit controller for cell editors.
/// </summary>
var currentEditController = null;
this.isActive = function isActive(editController) {
/// <summary>
/// Return true if the specified editController
/// is currently active in this lock instance
/// (i.e. if that controller acquired edit lock).
/// If invoked without parameters ("editorLock.isActive()"),
/// return true if any editController is currently
/// active in this lock instance.
/// </summary>
return (editController ? currentEditController === editController : currentEditController !== null);
};
this.activate = function activate(editController) {
/// <summary>
/// Set the specified editController as the active
/// controller in this lock instance (acquire edit lock).
/// If another editController is already active,
/// an error will be thrown (i.e. before calling
/// this method isActive() must be false,
/// afterwards isActive() will be true).
/// </summary>
if (editController === currentEditController) { // already activated?
return;
}
if (currentEditController !== null) {
throw "SlickGrid.EditorLock.activate: an editController is still active, can't activate another editController";
}
if (!editController.commitCurrentEdit) {
throw "SlickGrid.EditorLock.activate: editController must implement .commitCurrentEdit()";
}
if (!editController.cancelCurrentEdit) {
throw "SlickGrid.EditorLock.activate: editController must implement .cancelCurrentEdit()";
}
currentEditController = editController;
};
this.deactivate = function deactivate(editController) {
/// <summary>
/// Unset the specified editController as the active
/// controller in this lock instance (release edit lock).
/// If the specified editController is not the editController
/// that is currently active in this lock instance,
/// an error will be thrown.
/// </summary>
if (currentEditController !== editController) {
throw "SlickGrid.EditorLock.deactivate: specified editController is not the currently active one";
}
currentEditController = null;
};
this.commitCurrentEdit = function commitCurrentEdit() {
/// <summary>
/// Invoke the "commitCurrentEdit" method on the
/// editController that is active in this lock
/// instance and return the return value of that method
/// (if no controller is active, return true).
/// "commitCurrentEdit" is expected to return true
/// to indicate successful commit, false otherwise.
/// </summary>
return (currentEditController ? currentEditController.commitCurrentEdit() : true);
};
this.cancelCurrentEdit = function cancelCurrentEdit() {
/// <summary>
/// Invoke the "cancelCurrentEdit" method on the
/// editController that is active in this lock
/// instance (if no controller is active, do nothing).
/// </summary>
if (currentEditController) {
currentEditController.cancelCurrentEdit();
}
};
} // end of EditorLock function (class)
//////////////////////////////////////////////////////////////////////////////////////////////
// SlickGrid class implementation (available as Slick.Grid)
/** @constructor */
function SlickGrid($container,data,columns,options) {
/// <summary>
/// Create and manage virtual grid in the specified $container,
/// connecting it to the specified data source. Data is presented
/// as a grid with the specified columns and data.length rows.
/// Options alter behaviour of the grid.
/// </summary>
// settings
var defaults = {
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: 60,
autoHeight: false,
editorLock: Slick.GlobalEditorLock,
showSecondaryHeaderRow: false,
secondaryHeaderRowHeight: 25,
syncColumnCellResize: false,
enableAutoTooltips: true
},
gridData, gridDataGetLength, gridDataGetItem;
var columnDefaults = {
resizable: true,
sortable: false,
minWidth: 30,
formatter: function defaultFormatter(row, cell, value, columnDef, dataContext) {
return (value === null || value === undefined) ? "" : value;
}
};
// consts
var CAPACITY = 50;
var MIN_BUFFER = 5;
var BUFFER = MIN_BUFFER; // will be set to equal one page
// private
var uid = "slickgrid_" + Math.round(1000000 * Math.random());
var self = this;
var $headerScroller;
var $headers;
var $secondaryHeaderScroller;
var $secondaryHeaders;
var $viewport;
var $canvas;
var viewportH, viewportW;
var headerColumnWidthDiff, headerColumnHeightDiff, cellWidthDiff, cellHeightDiff; // padding+border
var absoluteColumnMinWidth;
var currentRow, currentCell;
var currentCellNode = null;
var currentEditor = null;
var editController;
var rowsCache = {};
var renderedRows = 0;
var numVisibleRows;
var lastRenderedScrollTop = 0;
var currentScrollTop = 0;
var currentScrollLeft = 0;
var scrollDir = 1;
var avgRowRenderTime = 10;
var selectedRows = [];
var selectedRowsLookup = {};
var columnsById = {};
// 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;
//////////////////////////////////////////////////////////////////////////////////////////////
// Initialization
function measureScrollbar() {
/// <summary>
/// Measure width of a vertical scrollbar
/// and height of a horizontal scrollbar.
/// </summary
/// <returns>
/// { width: pixelWidth, height: pixelHeight }
/// </returns>
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 };
$c.remove();
return dim;
}
function disableSelection($target) {
/// <summary>
/// Disable text selection (using mouse) in
/// the specified target.
/// </summary
if ($target && $target.jquery) {
if ($target.disableSelection) { // if jquery:ui.core has been loaded, use it
$target.disableSelection();
}
else { // otherwise, use "stolen" implementation :)
$target.attr('unselectable', 'on').css('MozUserSelect', 'none').bind('selectstart.ui', function() { return false; }); // from jquery:ui.core.js 1.7.2
}
}
}
// TODO: PERF: throttle event
function handleHover(e) {
if (!options.enableAutoTooltips) {
return;
}
var $cell = $(e.target).closest(".slick-cell",$canvas);
if ($cell && $cell.length) {
if ($cell.innerWidth() < $cell[0].scrollWidth) {
$cell.attr("title", $.trim($cell.text()));
}
else {
$cell.attr("title","");
}
}
}
function defaultGetLength() {
/// <summary>
/// Default implementation of getLength method
/// returns the length of the array.
/// </summary
return gridData.length;
}
function defaultGetItem(i) {
/// <summary>
/// Default implementation of getItem method
/// returns the item at specified position in
/// the array.
/// </summary
return gridData[i];
}
function init() {
/// <summary>
/// Initialize 'this' (self) instance of a SlickGrid.
/// This function is called by the constructor.
/// </summary>
gridData = data;
gridDataGetLength = gridData.getLength || defaultGetLength;
gridDataGetItem = gridData.getItem || defaultGetItem;
scrollbarDimensions = scrollbarDimensions || measureScrollbar(); // skip measurement if already have dimensions
options = $.extend({},defaults,options);
columnDefaults.width = options.defaultColumnWidth;
// validate loaded JavaScript modules against requested options
if (options.enableColumnReorder && !jQuery.fn.sortable) {
throw new Error("SlickGrid's \"enableColumnReorder = true\" option requires jquery-ui.sortable module to be loaded");
}
editController = {
"commitCurrentEdit": commitCurrentEdit,
"cancelCurrentEdit": cancelCurrentEdit
};
$container
.empty()
.attr("tabIndex",0)
.attr("hideFocus",true)
.css("overflow","hidden")
.css("outline",0)
.addClass(uid)
.addClass("ui-widget");
switch ($container.css("position")) {
case "absolute": // if the container is already positioning origin, keep it as it is
case "relative":
case "fixed":
break;
default: // container is not a positioning origin, convert it to one
$container.css("position","relative");
break;
}
$headerScroller = $("<div class='slick-header ui-state-default' style='overflow:hidden;position:relative;' />").appendTo($container);
$headers = $("<div class='slick-header-columns' style='width:100000px' />").appendTo($headerScroller);
$secondaryHeaderScroller = $("<div class='slick-header-secondary ui-state-default' style='overflow:hidden;position:relative;' />").appendTo($container);
$secondaryHeaders = $("<div class='slick-header-columns-secondary' style='width:100000px' />").appendTo($secondaryHeaderScroller);
if (!options.showSecondaryHeaderRow) {
$secondaryHeaderScroller.hide();
}
// with autoHeight, we can set the mainscroller's y-overflow to auto, since the scroll bar will not appear
var msStyle = "width:100%;overflow-x:auto;outline:0;position:relative;overflow-y:" + (options.autoHeight ? "auto;" : "scroll;");
$viewport = $("<div class='slick-viewport' tabIndex='0' hideFocus style='" + msStyle + "'>").appendTo($container);
$canvas = $("<div class='grid-canvas' tabIndex='0' hideFocus style='overflow:hidden' />").appendTo($viewport);
// 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();
$viewport.height(
$container.innerHeight() -
$headerScroller.outerHeight() -
(options.showSecondaryHeaderRow ? $secondaryHeaderScroller.outerHeight() : 0));
// for usability reasons, all text selection in SlickGrid is disabled
// with the exception of input and textarea elements (selection must
// be enabled there so that editors work as expected); note that
// selection in grid cells (grid body) is already unavailable in
// all browsers except IE
disableSelection($headers); // disable all text selection in header (including input and textarea)
$viewport.bind("selectstart.ui", function (event) { return $(event.target).is("input,textarea"); }); // disable text selection in grid cells except in input and textarea elements (this is IE-specific, because selectstart event will only fire in IE)
createColumnHeaders();
setupRowReordering();
createCssRules();
resizeAndRender();
$viewport.bind("scroll", handleScroll);
$container.bind("resize", resizeAndRender);
$canvas.bind("keydown", handleKeyDown);
$canvas.bind("click", handleClick);
$canvas.bind("dblclick", handleDblClick);
$canvas.bind("contextmenu", handleContextMenu);
$canvas.bind("mouseover", handleHover);
$headerScroller.bind("contextmenu", handleHeaderContextMenu);
}
function createColumnHeaders() {
var i;
function hoverBegin() {
$(this).addClass('ui-state-hover');
}
function hoverEnd() {
$(this).removeClass('ui-state-hover');
}
for (i = 0; i < columns.length; i++) {
var m = columns[i] = $.extend({},columnDefaults,columns[i]);
columnsById[m.id] = i;
var header = $("<div class='ui-state-default slick-header-column' cell=" + i + " id='" + m.id + "' />")
.html("<span class='slick-column-name'>" + m.name + "</span>")
.width(m.width - headerColumnWidthDiff)
.attr('title', m.toolTip || m.name)
.appendTo($headers);
if (m.hidden) {
header.css("display","none");
}
if (options.enableColumnReorder || m.sortable) {
header.hover(hoverBegin, hoverEnd);
}
if (m.sortable) {
header.append("<span class='slick-sort-indicator' />");
}
}
setupColumnSort();
setupColumnResize();
if (options.enableColumnReorder) {
setupColumnReorder();
}
}
function setupColumnSort() {
$headers.click(function(e) {
if ($(e.target).hasClass("slick-resizable-handle")) {
return;
}
var $col = $(e.target).closest(".slick-header-column");
if (!$col.length || !columns[columnsById[$col.attr("id")]].sortable) {
return;
}
if (!options.editorLock.commitCurrentEdit()) { return; }
if ($col.is(".slick-header-column-sorted")) {
$col.find(".slick-sort-indicator").toggleClass("slick-sort-indicator-asc").toggleClass("slick-sort-indicator-desc");
}
else {
$headers.children().removeClass("slick-header-column-sorted");
$headers.find(".slick-sort-indicator").removeClass("slick-sort-indicator-asc slick-sort-indicator-desc");
$col.addClass("slick-header-column-sorted");
$col.find(".slick-sort-indicator").addClass("slick-sort-indicator-asc");
}
if (self.onSort) {
self.onSort(columns[columnsById[$col.attr("id")]], $col.find(".slick-sort-indicator").hasClass("slick-sort-indicator-asc"));
}
});
}
function setupColumnReorder() {
$headers.sortable({
containment: 'parent',
axis: "x",
cursor: "default",
cursorAt: "left",
tolerance: "intersection",
helper: "clone",
placeholder: "slick-sortable-placeholder ui-state-default slick-header-column",
forcePlaceholderSize: true,
start: function(e, ui) { $(ui.helper).addClass("slick-header-column-active"); },
beforeStop: function(e, ui) { $(ui.helper).removeClass("slick-header-column-active"); },
stop: function(e) {
var i;
if (!options.editorLock.commitCurrentEdit()) {
$(this).sortable("cancel");
return;
}
var newOrder = $headers.sortable("toArray"), lookup = {};
for (i=0; i<columns.length; i++) {
lookup[columns[i].id] = columns[i];
}
for (i=0; i<newOrder.length; i++) {
$headers.children()[i].setAttribute('cell', i);
columnsById[newOrder[i]] = i;
columns[i] = lookup[newOrder[i]];
}
removeAllRows();
removeCssRules();
createCssRules();
render();
if (self.onColumnsReordered) {
self.onColumnsReordered();
}
e.stopPropagation();
setupColumnResize();
}
});
}
function setupColumnResize() {
var j, c, pageX, columnElements, minPageX, maxPageX, firstResizable, lastResizable, originalCanvasWidth;
columnElements = $headers.find(".slick-header-column:visible");
columnElements.find('.slick-resizable-handle').remove();
columnElements.each(function(i,e) {
c = columns[e.getAttribute('cell')];
if (c.resizable) {
if (firstResizable === undefined) { firstResizable = i; }
lastResizable = i;
}
});
columnElements.each(function(i,e) {
if ((firstResizable !== undefined && i < firstResizable) || (options.forceFitColumns && i >= lastResizable)) { return; }
var $col = $(this);
$("<div class='slick-resizable-handle' />")
.appendTo(e)
.bind("dragstart", function(e) {
if (!options.editorLock.commitCurrentEdit()) { return false; }
pageX = e.pageX;
$col.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[e.getAttribute('cell')].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[columnElements[j].getAttribute('cell')];
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[columnElements[j].getAttribute('cell')];
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);
originalCanvasWidth = $canvas.width();
})
.bind("drag", function(e) {
var actualMinWidth, d = Math.min(maxPageX, Math.max(minPageX, e.pageX)) - pageX, x, ci;
if (d < 0) { // shrink column
x = d;
for (j = i; j >= 0; j--) {
ci = j;
c = columns[ci];
if (c.resizable) {
actualMinWidth = Math.max(c.minWidth || 0, absoluteColumnMinWidth);
if (x && c.previousWidth + x < actualMinWidth) {
x += c.previousWidth - actualMinWidth;
styleColumnWidth(ci, actualMinWidth, options.syncColumnCellResize);
} else {
styleColumnWidth(ci, c.previousWidth + x, options.syncColumnCellResize);
x = 0;
}
}
}
if (options.forceFitColumns) {
x = -d;
for (j = i + 1; j < columnElements.length; j++) {
ci = columnElements[j].getAttribute('cell');
c = columns[ci];
if (c.resizable) {
if (x && c.maxWidth && (c.maxWidth - c.previousWidth < x)) {
x -= c.maxWidth - c.previousWidth;
styleColumnWidth(ci, c.maxWidth, options.syncColumnCellResize);
} else {
styleColumnWidth(ci, c.previousWidth + x, options.syncColumnCellResize);
x = 0;
}
}
}
} else if (options.syncColumnCellResize) {
$canvas.width(originalCanvasWidth + d);
}
} else { // stretch column
x = d;
for (j = i; j >= 0; j--) {
ci = columnElements[j].getAttribute('cell');
c = columns[ci];
if (c.resizable) {
if (x && c.maxWidth && (c.maxWidth - c.previousWidth < x)) {
x -= c.maxWidth - c.previousWidth;
styleColumnWidth(ci, c.maxWidth, options.syncColumnCellResize);
} else {
styleColumnWidth(ci, c.previousWidth + x, options.syncColumnCellResize);
x = 0;
}
}
}
if (options.forceFitColumns) {
x = -d;
for (j = i + 1; j < columnElements.length; j++) {
ci = columnElements[j].getAttribute('cell');
c = columns[ci];
if (c.resizable) {
actualMinWidth = Math.max(c.minWidth || 0, absoluteColumnMinWidth);
if (x && c.previousWidth + x < actualMinWidth) {
x += c.previousWidth - actualMinWidth;
styleColumnWidth(ci, actualMinWidth, options.syncColumnCellResize);
} else {
styleColumnWidth(ci, c.previousWidth + x, options.syncColumnCellResize);
x = 0;
}
}
}
} else if (options.syncColumnCellResize) {
$canvas.width(originalCanvasWidth + d);
}
}
})
.bind("dragend", function(e) {
var newWidth;
$col.removeClass("slick-header-column-active");
for (j = 0; j < columnElements.length; j++) {
var columnIndex = columnElements[j].getAttribute('cell');
c = columns[columnIndex];
newWidth = $(columnElements[j]).outerWidth();
if (c.previousWidth !== newWidth && c.rerenderOnResize) {
removeAllRows();
}
if (options.forceFitColumns) {
c.width = Math.floor(c.width * (newWidth - c.previousWidth) / c.previousWidth) + c.width;
} else {
c.width = newWidth;
}
if (!options.syncColumnCellResize) {
styleColumnWidth(columnIndex, newWidth, true);
}
}
resizeCanvas();
if (self.onColumnsResized) {
self.onColumnsResized();
}
});
});
}
function setupRowReordering() {
$canvas
.bind("beforedragstart", function(e) {
var $cell = $(e.target).closest(".slick-cell");
if ($cell.length === 0) { return false; }
if (parseInt($cell.parent().attr("row"), 10) >= gridDataGetLength()) { return false; }
var colDef = columns[$cell.attr("cell")];
if (colDef.behavior !== "move" && colDef.behavior !== "selectAndMove") { return false; }
})
.bind("dragstart", function(e) {
if (!options.editorLock.commitCurrentEdit()) { return false; }
var row = parseInt($(e.target).closest(".slick-row").attr("row"), 10);
if (!selectedRowsLookup[row]) {
setSelectedRows([row]);
}
var $selectionProxy = $("<div class='slick-reorder-proxy'/>");
$selectionProxy
.css("position", "absolute")
.css("zIndex", "99999")
.css("width", $(this).innerWidth())
.css("height", options.rowHeight*selectedRows.length)
.appendTo($viewport);
$(this)
.data("selectionProxy", $selectionProxy)
.data("insertBefore", -1);
var $guide = $("<div class='slick-reorder-guide'/>");
$guide
.css("position", "absolute")
.css("zIndex", "99998")
.css("width", $(this).innerWidth())
.css("top", -1000)
.appendTo($viewport);
return $guide;
})
.bind("drag", function(e) {
var top = e.clientY - $(this).offset().top;
$(this).data("selectionProxy").css("top",top-5);
var insertBefore = Math.max(0,Math.min(Math.round(top/options.rowHeight),gridDataGetLength()));
if (insertBefore !== $(this).data("insertBefore")) {
if (self.onBeforeMoveRows && self.onBeforeMoveRows(getSelectedRows(),insertBefore) === false) {
$(e.dragProxy).css("top", -1000).data("canMove",false);
}
else {
$(e.dragProxy).css("top",insertBefore*options.rowHeight).data("canMove",true);
}
$(this).data("insertBefore", insertBefore);
}
})
.bind("dragend", function(e) {
var canMove = $(e.dragProxy).data("canMove");
$(e.dragProxy).remove();
$(this).data("selectionProxy").remove();
var insertBefore = $(this).data("insertBefore");
$(this).removeData("selectionProxy").removeData("insertBefore");
if (self.onMoveRows && canMove) { self.onMoveRows(getSelectedRows(),insertBefore); }
});
}
function measureCellPaddingAndBorder() {
var tmp = $("<div class='ui-state-default slick-header-column' cell='' id='' style='visibility:hidden'>-</div>").appendTo($headers);
headerColumnWidthDiff = tmp.outerWidth() - tmp.width();
headerColumnHeightDiff = tmp.outerHeight() - tmp.height();
tmp.remove();
var r = $("<div class='slick-row' />").appendTo($canvas);
tmp = $("<div class='slick-cell' cell='' id='' style='visibility:hidden'>-</div>").appendTo(r);
cellWidthDiff = tmp.outerWidth() - tmp.width();
cellHeightDiff = tmp.outerHeight() - tmp.height();
r.remove();
absoluteColumnMinWidth = Math.max(headerColumnWidthDiff,cellWidthDiff);
}
function createCssRules() {
var $style = $("<style type='text/css' rel='stylesheet' lib='slickgrid" + uid + "' />").appendTo($("head"));
var rowHeight = (options.rowHeight - cellHeightDiff);
$.rule("." + uid + " .slick-header-columns-secondary { height:" + options.secondaryHeaderRowHeight + "px; }").appendTo($style);
$.rule("." + uid + " .slick-cell { height:" + rowHeight + "px; line-height:" + rowHeight + "px; }").appendTo($style);
for (var i = 0; i < columns.length; i++) {
$.rule(
"." + uid + " .c" + i + " { " +
"width:" + ((columns[i].currentWidth || columns[i].width) - cellWidthDiff) + "px; " +
"display: " + (columns[i].hidden ? "none" : "block") +
" }").appendTo($style);
}
}
function removeCssRules() {
$("style[lib=slickgrid" + uid + "]").remove();
}
function destroy() {
options.editorLock.cancelCurrentEdit();
if (self.onBeforeDestroy) { self.onBeforeDestroy(); }
if ($headers.sortable) { $headers.sortable("destroy"); }
$container.unbind("resize", resizeCanvas);
removeCssRules();
$container.empty().removeClass(uid);
}
//////////////////////////////////////////////////////////////////////////////////////////////
// General
function getEditController() {
return editController;
}
function getColumnIndex(id) {
return columnsById[id];
}
function autosizeColumns() {
var i, c,
widths = [],
visibleColumns = [],
shrinkLeeway = 0,
availWidth = (options.autoHeight ? viewportW : viewportW - scrollbarDimensions.width), // with AutoHeight, we do not need to accomodate the vertical scroll bar
total = 0,
existingTotal = 0;
for (i = 0; i < columns.length; i++) {
if (!columns[i].hidden) {
c = columns[i];
visibleColumns.push(c);
widths.push(c.width);
existingTotal += c.width;
shrinkLeeway += c.width - Math.max(c.minWidth || 0, absoluteColumnMinWidth);
}
}
total = existingTotal;
removeAllRows();
// shrink
while (total > availWidth) {
if (!shrinkLeeway) { return; }
var shrinkProportion = (total - availWidth) / shrinkLeeway;
for (i = 0; i < visibleColumns.length && total > availWidth; i++) {
c = visibleColumns[i];
if (!c.resizable || c.minWidth === c.width || c.width === absoluteColumnMinWidth) { continue; }
var shrinkSize = Math.floor(shrinkProportion * (c.width - Math.max(c.minWidth || 0, absoluteColumnMinWidth))) || 1;
total -= shrinkSize;
widths[i] -= shrinkSize;
}
}
// grow
while (total < availWidth) {
var growProportion = availWidth / total;
for (i = 0; i < visibleColumns.length && total < availWidth; i++) {
c = visibleColumns[i];
if (!c.resizable || c.maxWidth === c.width) { continue; }
var growSize = Math.min(Math.floor(growProportion * c.width) - c.width, (c.maxWidth - c.width) || 1000000) || 1;
total += growSize;
widths[i] += growSize;
}
}
for (i=0; i<columns.length; i++) {
if (columns[i] === visibleColumns[0]) {
var newWidth = widths.shift();
visibleColumns.shift().currentWidth = newWidth;
styleColumnWidth(i, newWidth, true);
}
}
resizeCanvas();
}
function styleColumnWidth(index,width,styleCells) {
var c = columns[index];
c.currentWidth = width;
$headers.children().eq(index).css("width", width - headerColumnWidthDiff);
if (styleCells) {
$.rule("." + uid + " .c" + index, "style[lib=slickgrid" + uid + "]").css("width", width - cellWidthDiff);
}
}
function setColumnVisibility(column,visible) {
var index = columnsById[column.id];
columns[index].hidden = !visible;
var header = $headers.find("[id=" + columns[index].id + "]");
header.css("display", visible?"block":"none");
$.rule("." + uid + " .c" + index, "style[lib=slickgrid" + uid + "]").css("display", visible?"block":"none");
resizeCanvas();
if (options.forceFitColumns) {
autosizeColumns();
}
setupColumnResize();
}
function getSelectedRows() {
return selectedRows.concat();
}
function setSelectedRows(rows) {
var i, row;
if (options.editorLock.isActive() && !options.editorLock.isActive(editController)) { // there are 3 possible states: a) editor lock is inactive: OK, b) editor lock is active and this SlickGrid is the controller: OK, c) editor lock is active but some other controller locked it: throw
throw "Grid : setSelectedRows : cannot set selected rows when somebody else has an edit lock";
}
var lookup = {};
for (i=0; i<rows.length; i++) {
lookup[rows[i]] = true;
}
// unselect old rows
for (i=0; i<selectedRows.length; i++) {
row = selectedRows[i];
if (rowsCache[row] && !lookup[row]) {
$(rowsCache[row]).removeClass("ui-state-active selected");
}
}
// select new ones
for (i=0; i<rows.length; i++) {
row = rows[i];
if (rowsCache[row] && !selectedRowsLookup[row]) {
$(rowsCache[row]).addClass("ui-state-active selected");
}
}
selectedRows = rows.concat();
selectedRowsLookup = lookup;
}
function getOptions(args) {
return options;
}
function setOptions(args) {
if (!options.editorLock.commitCurrentEdit()) {
return;
}
makeSelectedCellNormal();
if (options.enableAddRow !== args.enableAddRow) {
removeRow(gridDataGetLength());
}
options = $.extend(options,args);
render();
}