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40 aurelien 1
/*
2
 * jQuery UI Dialog 1.8.5
3
 *
4
 * Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)
5
 * Dual licensed under the MIT or GPL Version 2 licenses.
6
 * http://jquery.org/license
7
 *
8
 * http://docs.jquery.com/UI/Dialog
9
 *
10
 * Depends:
11
 *	jquery.ui.core.js
12
 *	jquery.ui.widget.js
13
 *  jquery.ui.button.js
14
 *	jquery.ui.draggable.js
15
 *	jquery.ui.mouse.js
16
 *	jquery.ui.position.js
17
 *	jquery.ui.resizable.js
18
 */
19
(function( $, undefined ) {
20
 
21
var uiDialogClasses =
22
	'ui-dialog ' +
23
	'ui-widget ' +
24
	'ui-widget-content ' +
25
	'ui-corner-all ';
26
 
27
$.widget("ui.dialog", {
28
	options: {
29
		autoOpen: true,
30
		buttons: {},
31
		closeOnEscape: true,
32
		closeText: 'close',
33
		dialogClass: '',
34
		draggable: true,
35
		hide: null,
36
		height: 'auto',
37
		maxHeight: false,
38
		maxWidth: false,
39
		minHeight: 150,
40
		minWidth: 150,
41
		modal: false,
42
		position: {
43
			my: 'center',
44
			at: 'center',
45
			of: window,
46
			collision: 'fit',
47
			// ensure that the titlebar is never outside the document
48
			using: function(pos) {
49
				var topOffset = $(this).css(pos).offset().top;
50
				if (topOffset < 0) {
51
					$(this).css('top', pos.top - topOffset);
52
				}
53
			}
54
		},
55
		resizable: true,
56
		show: null,
57
		stack: true,
58
		title: '',
59
		width: 300,
60
		zIndex: 1000
61
	},
62
 
63
	_create: function() {
64
		this.originalTitle = this.element.attr('title');
65
		// #5742 - .attr() might return a DOMElement
66
		if ( typeof this.originalTitle !== "string" ) {
67
			this.originalTitle = "";
68
		}
69
 
70
		this.options.title = this.options.title || this.originalTitle;
71
		var self = this,
72
			options = self.options,
73
 
74
			title = options.title || '&#160;',
75
			titleId = $.ui.dialog.getTitleId(self.element),
76
 
77
			uiDialog = (self.uiDialog = $('<div></div>'))
78
				.appendTo(document.body)
79
				.hide()
80
				.addClass(uiDialogClasses + options.dialogClass)
81
				.css({
82
					zIndex: options.zIndex
83
				})
84
				// setting tabIndex makes the div focusable
85
				// setting outline to 0 prevents a border on focus in Mozilla
86
				.attr('tabIndex', -1).css('outline', 0).keydown(function(event) {
87
					if (options.closeOnEscape && event.keyCode &&
88
						event.keyCode === $.ui.keyCode.ESCAPE) {
89
 
90
						self.close(event);
91
						event.preventDefault();
92
					}
93
				})
94
				.attr({
95
					role: 'dialog',
96
					'aria-labelledby': titleId
97
				})
98
				.mousedown(function(event) {
99
					self.moveToTop(false, event);
100
				}),
101
 
102
			uiDialogContent = self.element
103
				.show()
104
				.removeAttr('title')
105
				.addClass(
106
					'ui-dialog-content ' +
107
					'ui-widget-content')
108
				.appendTo(uiDialog),
109
 
110
			uiDialogTitlebar = (self.uiDialogTitlebar = $('<div></div>'))
111
				.addClass(
112
					'ui-dialog-titlebar ' +
113
					'ui-widget-header ' +
114
					'ui-corner-all ' +
115
					'ui-helper-clearfix'
116
				)
117
				.prependTo(uiDialog),
118
 
119
			uiDialogTitlebarClose = $('<a href="#"></a>')
120
				.addClass(
121
					'ui-dialog-titlebar-close ' +
122
					'ui-corner-all'
123
				)
124
				.attr('role', 'button')
125
				.hover(
126
					function() {
127
						uiDialogTitlebarClose.addClass('ui-state-hover');
128
					},
129
					function() {
130
						uiDialogTitlebarClose.removeClass('ui-state-hover');
131
					}
132
				)
133
				.focus(function() {
134
					uiDialogTitlebarClose.addClass('ui-state-focus');
135
				})
136
				.blur(function() {
137
					uiDialogTitlebarClose.removeClass('ui-state-focus');
138
				})
139
				.click(function(event) {
140
					self.close(event);
141
					return false;
142
				})
143
				.appendTo(uiDialogTitlebar),
144
 
145
			uiDialogTitlebarCloseText = (self.uiDialogTitlebarCloseText = $('<span></span>'))
146
				.addClass(
147
					'ui-icon ' +
148
					'ui-icon-closethick'
149
				)
150
				.text(options.closeText)
151
				.appendTo(uiDialogTitlebarClose),
152
 
153
			uiDialogTitle = $('<span></span>')
154
				.addClass('ui-dialog-title')
155
				.attr('id', titleId)
156
				.html(title)
157
				.prependTo(uiDialogTitlebar);
158
 
159
		//handling of deprecated beforeclose (vs beforeClose) option
160
		//Ticket #4669 http://dev.jqueryui.com/ticket/4669
161
		//TODO: remove in 1.9pre
162
		if ($.isFunction(options.beforeclose) && !$.isFunction(options.beforeClose)) {
163
			options.beforeClose = options.beforeclose;
164
		}
165
 
166
		uiDialogTitlebar.find("*").add(uiDialogTitlebar).disableSelection();
167
 
168
		if (options.draggable && $.fn.draggable) {
169
			self._makeDraggable();
170
		}
171
		if (options.resizable && $.fn.resizable) {
172
			self._makeResizable();
173
		}
174
 
175
		self._createButtons(options.buttons);
176
		self._isOpen = false;
177
 
178
		if ($.fn.bgiframe) {
179
			uiDialog.bgiframe();
180
		}
181
	},
182
 
183
	_init: function() {
184
		if ( this.options.autoOpen ) {
185
			this.open();
186
		}
187
	},
188
 
189
	destroy: function() {
190
		var self = this;
191
 
192
		if (self.overlay) {
193
			self.overlay.destroy();
194
		}
195
		self.uiDialog.hide();
196
		self.element
197
			.unbind('.dialog')
198
			.removeData('dialog')
199
			.removeClass('ui-dialog-content ui-widget-content')
200
			.hide().appendTo('body');
201
		self.uiDialog.remove();
202
 
203
		if (self.originalTitle) {
204
			self.element.attr('title', self.originalTitle);
205
		}
206
 
207
		return self;
208
	},
209
 
210
	widget: function() {
211
		return this.uiDialog;
212
	},
213
 
214
	close: function(event) {
215
		var self = this,
216
			maxZ;
217
 
218
		if (false === self._trigger('beforeClose', event)) {
219
			return;
220
		}
221
 
222
		if (self.overlay) {
223
			self.overlay.destroy();
224
		}
225
		self.uiDialog.unbind('keypress.ui-dialog');
226
 
227
		self._isOpen = false;
228
 
229
		if (self.options.hide) {
230
			self.uiDialog.hide(self.options.hide, function() {
231
				self._trigger('close', event);
232
			});
233
		} else {
234
			self.uiDialog.hide();
235
			self._trigger('close', event);
236
		}
237
 
238
		$.ui.dialog.overlay.resize();
239
 
240
		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
241
		if (self.options.modal) {
242
			maxZ = 0;
243
			$('.ui-dialog').each(function() {
244
				if (this !== self.uiDialog[0]) {
245
					maxZ = Math.max(maxZ, $(this).css('z-index'));
246
				}
247
			});
248
			$.ui.dialog.maxZ = maxZ;
249
		}
250
 
251
		return self;
252
	},
253
 
254
	isOpen: function() {
255
		return this._isOpen;
256
	},
257
 
258
	// the force parameter allows us to move modal dialogs to their correct
259
	// position on open
260
	moveToTop: function(force, event) {
261
		var self = this,
262
			options = self.options,
263
			saveScroll;
264
 
265
		if ((options.modal && !force) ||
266
			(!options.stack && !options.modal)) {
267
			return self._trigger('focus', event);
268
		}
269
 
270
		if (options.zIndex > $.ui.dialog.maxZ) {
271
			$.ui.dialog.maxZ = options.zIndex;
272
		}
273
		if (self.overlay) {
274
			$.ui.dialog.maxZ += 1;
275
			self.overlay.$el.css('z-index', $.ui.dialog.overlay.maxZ = $.ui.dialog.maxZ);
276
		}
277
 
278
		//Save and then restore scroll since Opera 9.5+ resets when parent z-Index is changed.
279
		//  http://ui.jquery.com/bugs/ticket/3193
280
		saveScroll = { scrollTop: self.element.attr('scrollTop'), scrollLeft: self.element.attr('scrollLeft') };
281
		$.ui.dialog.maxZ += 1;
282
		self.uiDialog.css('z-index', $.ui.dialog.maxZ);
283
		self.element.attr(saveScroll);
284
		self._trigger('focus', event);
285
 
286
		return self;
287
	},
288
 
289
	open: function() {
290
		if (this._isOpen) { return; }
291
 
292
		var self = this,
293
			options = self.options,
294
			uiDialog = self.uiDialog;
295
 
296
		self.overlay = options.modal ? new $.ui.dialog.overlay(self) : null;
297
		if (uiDialog.next().length) {
298
			uiDialog.appendTo('body');
299
		}
300
		self._size();
301
		self._position(options.position);
302
		uiDialog.show(options.show);
303
		self.moveToTop(true);
304
 
305
		// prevent tabbing out of modal dialogs
306
		if (options.modal) {
307
			uiDialog.bind('keypress.ui-dialog', function(event) {
308
				if (event.keyCode !== $.ui.keyCode.TAB) {
309
					return;
310
				}
311
 
312
				var tabbables = $(':tabbable', this),
313
					first = tabbables.filter(':first'),
314
					last  = tabbables.filter(':last');
315
 
316
				if (event.target === last[0] && !event.shiftKey) {
317
					first.focus(1);
318
					return false;
319
				} else if (event.target === first[0] && event.shiftKey) {
320
					last.focus(1);
321
					return false;
322
				}
323
			});
324
		}
325
 
326
		// set focus to the first tabbable element in the content area or the first button
327
		// if there are no tabbable elements, set focus on the dialog itself
328
		$(self.element.find(':tabbable').get().concat(
329
			uiDialog.find('.ui-dialog-buttonpane :tabbable').get().concat(
330
				uiDialog.get()))).eq(0).focus();
331
 
332
		self._isOpen = true;
333
		self._trigger('open');
334
 
335
		return self;
336
	},
337
 
338
	_createButtons: function(buttons) {
339
		var self = this,
340
			hasButtons = false,
341
			uiDialogButtonPane = $('<div></div>')
342
				.addClass(
343
					'ui-dialog-buttonpane ' +
344
					'ui-widget-content ' +
345
					'ui-helper-clearfix'
346
				),
347
			uiButtonSet = $( "<div></div>" )
348
				.addClass( "ui-dialog-buttonset" )
349
				.appendTo( uiDialogButtonPane );
350
 
351
		// if we already have a button pane, remove it
352
		self.uiDialog.find('.ui-dialog-buttonpane').remove();
353
 
354
		if (typeof buttons === 'object' && buttons !== null) {
355
			$.each(buttons, function() {
356
				return !(hasButtons = true);
357
			});
358
		}
359
		if (hasButtons) {
360
			$.each(buttons, function(name, props) {
361
				props = $.isFunction( props ) ?
362
					{ click: props, text: name } :
363
					props;
364
				var button = $('<button></button>', props)
365
					.unbind('click')
366
					.click(function() {
367
						props.click.apply(self.element[0], arguments);
368
					})
369
					.appendTo(uiButtonSet);
370
				if ($.fn.button) {
371
					button.button();
372
				}
373
			});
374
			uiDialogButtonPane.appendTo(self.uiDialog);
375
		}
376
	},
377
 
378
	_makeDraggable: function() {
379
		var self = this,
380
			options = self.options,
381
			doc = $(document),
382
			heightBeforeDrag;
383
 
384
		function filteredUi(ui) {
385
			return {
386
				position: ui.position,
387
				offset: ui.offset
388
			};
389
		}
390
 
391
		self.uiDialog.draggable({
392
			cancel: '.ui-dialog-content, .ui-dialog-titlebar-close',
393
			handle: '.ui-dialog-titlebar',
394
			containment: 'document',
395
			start: function(event, ui) {
396
				heightBeforeDrag = options.height === "auto" ? "auto" : $(this).height();
397
				$(this).height($(this).height()).addClass("ui-dialog-dragging");
398
				self._trigger('dragStart', event, filteredUi(ui));
399
			},
400
			drag: function(event, ui) {
401
				self._trigger('drag', event, filteredUi(ui));
402
			},
403
			stop: function(event, ui) {
404
				options.position = [ui.position.left - doc.scrollLeft(),
405
					ui.position.top - doc.scrollTop()];
406
				$(this).removeClass("ui-dialog-dragging").height(heightBeforeDrag);
407
				self._trigger('dragStop', event, filteredUi(ui));
408
				$.ui.dialog.overlay.resize();
409
			}
410
		});
411
	},
412
 
413
	_makeResizable: function(handles) {
414
		handles = (handles === undefined ? this.options.resizable : handles);
415
		var self = this,
416
			options = self.options,
417
			// .ui-resizable has position: relative defined in the stylesheet
418
			// but dialogs have to use absolute or fixed positioning
419
			position = self.uiDialog.css('position'),
420
			resizeHandles = (typeof handles === 'string' ?
421
				handles	:
422
				'n,e,s,w,se,sw,ne,nw'
423
			);
424
 
425
		function filteredUi(ui) {
426
			return {
427
				originalPosition: ui.originalPosition,
428
				originalSize: ui.originalSize,
429
				position: ui.position,
430
				size: ui.size
431
			};
432
		}
433
 
434
		self.uiDialog.resizable({
435
			cancel: '.ui-dialog-content',
436
			containment: 'document',
437
			alsoResize: self.element,
438
			maxWidth: options.maxWidth,
439
			maxHeight: options.maxHeight,
440
			minWidth: options.minWidth,
441
			minHeight: self._minHeight(),
442
			handles: resizeHandles,
443
			start: function(event, ui) {
444
				$(this).addClass("ui-dialog-resizing");
445
				self._trigger('resizeStart', event, filteredUi(ui));
446
			},
447
			resize: function(event, ui) {
448
				self._trigger('resize', event, filteredUi(ui));
449
			},
450
			stop: function(event, ui) {
451
				$(this).removeClass("ui-dialog-resizing");
452
				options.height = $(this).height();
453
				options.width = $(this).width();
454
				self._trigger('resizeStop', event, filteredUi(ui));
455
				$.ui.dialog.overlay.resize();
456
			}
457
		})
458
		.css('position', position)
459
		.find('.ui-resizable-se').addClass('ui-icon ui-icon-grip-diagonal-se');
460
	},
461
 
462
	_minHeight: function() {
463
		var options = this.options;
464
 
465
		if (options.height === 'auto') {
466
			return options.minHeight;
467
		} else {
468
			return Math.min(options.minHeight, options.height);
469
		}
470
	},
471
 
472
	_position: function(position) {
473
		var myAt = [],
474
			offset = [0, 0],
475
			isVisible;
476
 
477
		if (position) {
478
			// deep extending converts arrays to objects in jQuery <= 1.3.2 :-(
479
	//		if (typeof position == 'string' || $.isArray(position)) {
480
	//			myAt = $.isArray(position) ? position : position.split(' ');
481
 
482
			if (typeof position === 'string' || (typeof position === 'object' && '0' in position)) {
483
				myAt = position.split ? position.split(' ') : [position[0], position[1]];
484
				if (myAt.length === 1) {
485
					myAt[1] = myAt[0];
486
				}
487
 
488
				$.each(['left', 'top'], function(i, offsetPosition) {
489
					if (+myAt[i] === myAt[i]) {
490
						offset[i] = myAt[i];
491
						myAt[i] = offsetPosition;
492
					}
493
				});
494
 
495
				position = {
496
					my: myAt.join(" "),
497
					at: myAt.join(" "),
498
					offset: offset.join(" ")
499
				};
500
			}
501
 
502
			position = $.extend({}, $.ui.dialog.prototype.options.position, position);
503
		} else {
504
			position = $.ui.dialog.prototype.options.position;
505
		}
506
 
507
		// need to show the dialog to get the actual offset in the position plugin
508
		isVisible = this.uiDialog.is(':visible');
509
		if (!isVisible) {
510
			this.uiDialog.show();
511
		}
512
		this.uiDialog
513
			// workaround for jQuery bug #5781 http://dev.jquery.com/ticket/5781
514
			.css({ top: 0, left: 0 })
515
			.position(position);
516
		if (!isVisible) {
517
			this.uiDialog.hide();
518
		}
519
	},
520
 
521
	_setOption: function(key, value){
522
		var self = this,
523
			uiDialog = self.uiDialog,
524
			isResizable = uiDialog.is(':data(resizable)'),
525
			resize = false;
526
 
527
		switch (key) {
528
			//handling of deprecated beforeclose (vs beforeClose) option
529
			//Ticket #4669 http://dev.jqueryui.com/ticket/4669
530
			//TODO: remove in 1.9pre
531
			case "beforeclose":
532
				key = "beforeClose";
533
				break;
534
			case "buttons":
535
				self._createButtons(value);
536
				resize = true;
537
				break;
538
			case "closeText":
539
				// convert whatever was passed in to a string, for text() to not throw up
540
				self.uiDialogTitlebarCloseText.text("" + value);
541
				break;
542
			case "dialogClass":
543
				uiDialog
544
					.removeClass(self.options.dialogClass)
545
					.addClass(uiDialogClasses + value);
546
				break;
547
			case "disabled":
548
				if (value) {
549
					uiDialog.addClass('ui-dialog-disabled');
550
				} else {
551
					uiDialog.removeClass('ui-dialog-disabled');
552
				}
553
				break;
554
			case "draggable":
555
				if (value) {
556
					self._makeDraggable();
557
				} else {
558
					uiDialog.draggable('destroy');
559
				}
560
				break;
561
			case "height":
562
				resize = true;
563
				break;
564
			case "maxHeight":
565
				if (isResizable) {
566
					uiDialog.resizable('option', 'maxHeight', value);
567
				}
568
				resize = true;
569
				break;
570
			case "maxWidth":
571
				if (isResizable) {
572
					uiDialog.resizable('option', 'maxWidth', value);
573
				}
574
				resize = true;
575
				break;
576
			case "minHeight":
577
				if (isResizable) {
578
					uiDialog.resizable('option', 'minHeight', value);
579
				}
580
				resize = true;
581
				break;
582
			case "minWidth":
583
				if (isResizable) {
584
					uiDialog.resizable('option', 'minWidth', value);
585
				}
586
				resize = true;
587
				break;
588
			case "position":
589
				self._position(value);
590
				break;
591
			case "resizable":
592
				// currently resizable, becoming non-resizable
593
				if (isResizable && !value) {
594
					uiDialog.resizable('destroy');
595
				}
596
 
597
				// currently resizable, changing handles
598
				if (isResizable && typeof value === 'string') {
599
					uiDialog.resizable('option', 'handles', value);
600
				}
601
 
602
				// currently non-resizable, becoming resizable
603
				if (!isResizable && value !== false) {
604
					self._makeResizable(value);
605
				}
606
				break;
607
			case "title":
608
				// convert whatever was passed in o a string, for html() to not throw up
609
				$(".ui-dialog-title", self.uiDialogTitlebar).html("" + (value || '&#160;'));
610
				break;
611
			case "width":
612
				resize = true;
613
				break;
614
		}
615
 
616
		$.Widget.prototype._setOption.apply(self, arguments);
617
		if (resize) {
618
			self._size();
619
		}
620
	},
621
 
622
	_size: function() {
623
		/* If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
624
		 * divs will both have width and height set, so we need to reset them
625
		 */
626
		var options = this.options,
627
			nonContentHeight;
628
 
629
		// reset content sizing
630
		// hide for non content measurement because height: 0 doesn't work in IE quirks mode (see #4350)
631
		this.element.css({
632
			width: 'auto',
633
			minHeight: 0,
634
			height: 0
635
		});
636
 
637
		if (options.minWidth > options.width) {
638
			options.width = options.minWidth;
639
		}
640
 
641
		// reset wrapper sizing
642
		// determine the height of all the non-content elements
643
		nonContentHeight = this.uiDialog.css({
644
				height: 'auto',
645
				width: options.width
646
			})
647
			.height();
648
 
649
		this.element
650
			.css(options.height === 'auto' ? {
651
					minHeight: Math.max(options.minHeight - nonContentHeight, 0),
652
					height: $.support.minHeight ? 'auto' :
653
						Math.max(options.minHeight - nonContentHeight, 0)
654
				} : {
655
					minHeight: 0,
656
					height: Math.max(options.height - nonContentHeight, 0)
657
			})
658
			.show();
659
 
660
		if (this.uiDialog.is(':data(resizable)')) {
661
			this.uiDialog.resizable('option', 'minHeight', this._minHeight());
662
		}
663
	}
664
});
665
 
666
$.extend($.ui.dialog, {
667
	version: "1.8.5",
668
 
669
	uuid: 0,
670
	maxZ: 0,
671
 
672
	getTitleId: function($el) {
673
		var id = $el.attr('id');
674
		if (!id) {
675
			this.uuid += 1;
676
			id = this.uuid;
677
		}
678
		return 'ui-dialog-title-' + id;
679
	},
680
 
681
	overlay: function(dialog) {
682
		this.$el = $.ui.dialog.overlay.create(dialog);
683
	}
684
});
685
 
686
$.extend($.ui.dialog.overlay, {
687
	instances: [],
688
	// reuse old instances due to IE memory leak with alpha transparency (see #5185)
689
	oldInstances: [],
690
	maxZ: 0,
691
	events: $.map('focus,mousedown,mouseup,keydown,keypress,click'.split(','),
692
		function(event) { return event + '.dialog-overlay'; }).join(' '),
693
	create: function(dialog) {
694
		if (this.instances.length === 0) {
695
			// prevent use of anchors and inputs
696
			// we use a setTimeout in case the overlay is created from an
697
			// event that we're going to be cancelling (see #2804)
698
			setTimeout(function() {
699
				// handle $(el).dialog().dialog('close') (see #4065)
700
				if ($.ui.dialog.overlay.instances.length) {
701
					$(document).bind($.ui.dialog.overlay.events, function(event) {
702
						// stop events if the z-index of the target is < the z-index of the overlay
703
						// we cannot return true when we don't want to cancel the event (#3523)
704
						if ($(event.target).zIndex() < $.ui.dialog.overlay.maxZ) {
705
							return false;
706
						}
707
					});
708
				}
709
			}, 1);
710
 
711
			// allow closing by pressing the escape key
712
			$(document).bind('keydown.dialog-overlay', function(event) {
713
				if (dialog.options.closeOnEscape && event.keyCode &&
714
					event.keyCode === $.ui.keyCode.ESCAPE) {
715
 
716
					dialog.close(event);
717
					event.preventDefault();
718
				}
719
			});
720
 
721
			// handle window resize
722
			$(window).bind('resize.dialog-overlay', $.ui.dialog.overlay.resize);
723
		}
724
 
725
		var $el = (this.oldInstances.pop() || $('<div></div>').addClass('ui-widget-overlay'))
726
			.appendTo(document.body)
727
			.css({
728
				width: this.width(),
729
				height: this.height()
730
			});
731
 
732
		if ($.fn.bgiframe) {
733
			$el.bgiframe();
734
		}
735
 
736
		this.instances.push($el);
737
		return $el;
738
	},
739
 
740
	destroy: function($el) {
741
		this.oldInstances.push(this.instances.splice($.inArray($el, this.instances), 1)[0]);
742
 
743
		if (this.instances.length === 0) {
744
			$([document, window]).unbind('.dialog-overlay');
745
		}
746
 
747
		$el.remove();
748
 
749
		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
750
		var maxZ = 0;
751
		$.each(this.instances, function() {
752
			maxZ = Math.max(maxZ, this.css('z-index'));
753
		});
754
		this.maxZ = maxZ;
755
	},
756
 
757
	height: function() {
758
		var scrollHeight,
759
			offsetHeight;
760
		// handle IE 6
761
		if ($.browser.msie && $.browser.version < 7) {
762
			scrollHeight = Math.max(
763
				document.documentElement.scrollHeight,
764
				document.body.scrollHeight
765
			);
766
			offsetHeight = Math.max(
767
				document.documentElement.offsetHeight,
768
				document.body.offsetHeight
769
			);
770
 
771
			if (scrollHeight < offsetHeight) {
772
				return $(window).height() + 'px';
773
			} else {
774
				return scrollHeight + 'px';
775
			}
776
		// handle "good" browsers
777
		} else {
778
			return $(document).height() + 'px';
779
		}
780
	},
781
 
782
	width: function() {
783
		var scrollWidth,
784
			offsetWidth;
785
		// handle IE 6
786
		if ($.browser.msie && $.browser.version < 7) {
787
			scrollWidth = Math.max(
788
				document.documentElement.scrollWidth,
789
				document.body.scrollWidth
790
			);
791
			offsetWidth = Math.max(
792
				document.documentElement.offsetWidth,
793
				document.body.offsetWidth
794
			);
795
 
796
			if (scrollWidth < offsetWidth) {
797
				return $(window).width() + 'px';
798
			} else {
799
				return scrollWidth + 'px';
800
			}
801
		// handle "good" browsers
802
		} else {
803
			return $(document).width() + 'px';
804
		}
805
	},
806
 
807
	resize: function() {
808
		/* If the dialog is draggable and the user drags it past the
809
		 * right edge of the window, the document becomes wider so we
810
		 * need to stretch the overlay. If the user then drags the
811
		 * dialog back to the left, the document will become narrower,
812
		 * so we need to shrink the overlay to the appropriate size.
813
		 * This is handled by shrinking the overlay before setting it
814
		 * to the full document size.
815
		 */
816
		var $overlays = $([]);
817
		$.each($.ui.dialog.overlay.instances, function() {
818
			$overlays = $overlays.add(this);
819
		});
820
 
821
		$overlays.css({
822
			width: 0,
823
			height: 0
824
		}).css({
825
			width: $.ui.dialog.overlay.width(),
826
			height: $.ui.dialog.overlay.height()
827
		});
828
	}
829
});
830
 
831
$.extend($.ui.dialog.overlay.prototype, {
832
	destroy: function() {
833
		$.ui.dialog.overlay.destroy(this.$el);
834
	}
835
});
836
 
837
}(jQuery));