From 3909e6d89e01e4cd8777377c63037896bb95aa2f Mon Sep 17 00:00:00 2001
From: Leif Johansson <leifj@sunet.se>
Date: Fri, 25 Nov 2011 21:18:19 +0100
Subject: new jq layout

---
 .../webapp/jquery-ui-1.9pre/ui/jquery.ui.dialog.js | 831 +++++++++++++++++++++
 1 file changed, 831 insertions(+)
 create mode 100644 src/main/webapp/jquery-ui-1.9pre/ui/jquery.ui.dialog.js

(limited to 'src/main/webapp/jquery-ui-1.9pre/ui/jquery.ui.dialog.js')

diff --git a/src/main/webapp/jquery-ui-1.9pre/ui/jquery.ui.dialog.js b/src/main/webapp/jquery-ui-1.9pre/ui/jquery.ui.dialog.js
new file mode 100644
index 0000000..52b197f
--- /dev/null
+++ b/src/main/webapp/jquery-ui-1.9pre/ui/jquery.ui.dialog.js
@@ -0,0 +1,831 @@
+/*
+ * jQuery UI Dialog 1.9pre
+ *
+ * Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
+ * Dual licensed under the MIT or GPL Version 2 licenses.
+ * http://jquery.org/license
+ *
+ * http://docs.jquery.com/UI/Dialog
+ *
+ * Depends:
+ *	jquery.ui.core.js
+ *	jquery.ui.widget.js
+ *  jquery.ui.button.js
+ *	jquery.ui.draggable.js
+ *	jquery.ui.mouse.js
+ *	jquery.ui.position.js
+ *	jquery.ui.resizable.js
+ */
+(function( $, undefined ) {
+
+var uiDialogClasses = "ui-dialog ui-widget ui-widget-content ui-corner-all ",
+	sizeRelatedOptions = {
+		buttons: true,
+		height: true,
+		maxHeight: true,
+		maxWidth: true,
+		minHeight: true,
+		minWidth: true,
+		width: true
+	},
+	resizableRelatedOptions = {
+		maxHeight: true,
+		maxWidth: true,
+		minHeight: true,
+		minWidth: true
+	};
+
+$.widget("ui.dialog", {
+	version: "1.9pre",
+	options: {
+		autoOpen: true,
+		buttons: {},
+		closeOnEscape: true,
+		closeText: "close",
+		dialogClass: "",
+		draggable: true,
+		hide: null,
+		height: "auto",
+		maxHeight: false,
+		maxWidth: false,
+		minHeight: 150,
+		minWidth: 150,
+		modal: false,
+		position: {
+			my: "center",
+			at: "center",
+			of: window,
+			collision: "fit",
+			// ensure that the titlebar is never outside the document
+			using: function( pos ) {
+				var topOffset = $( this ).css( pos ).offset().top;
+				if ( topOffset < 0 ) {
+					$( this ).css( "top", pos.top - topOffset );
+				}
+			}
+		},
+		resizable: true,
+		show: null,
+		stack: true,
+		title: "",
+		width: 300,
+		zIndex: 1000
+	},
+
+	_create: function() {
+		this.originalTitle = this.element.attr( "title" );
+		// #5742 - .attr() might return a DOMElement
+		if ( typeof this.originalTitle !== "string" ) {
+			this.originalTitle = "";
+		}
+
+		this.options.title = this.options.title || this.originalTitle;
+		var self = this,
+			options = self.options,
+
+			title = options.title || "&#160;",
+			titleId = $.ui.dialog.getTitleId( self.element ),
+
+			uiDialog = ( self.uiDialog = $( "<div>" ) )
+				.addClass( uiDialogClasses + options.dialogClass )
+				.css({
+					display: "none",
+					outline: 0, // TODO: move to stylesheet
+					zIndex: options.zIndex
+				})
+				// setting tabIndex makes the div focusable
+				.attr( "tabIndex", -1)
+				.keydown(function( event ) {
+					if ( options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
+							event.keyCode === $.ui.keyCode.ESCAPE ) {
+						self.close( event );
+						event.preventDefault();
+					}
+				})
+				.attr({
+					role: "dialog",
+					"aria-labelledby": titleId
+				})
+				.mousedown(function( event ) {
+					self.moveToTop( false, event );
+				})
+				.appendTo( "body" ),
+
+			uiDialogContent = self.element
+				.show()
+				.removeAttr( "title" )
+				.addClass( "ui-dialog-content ui-widget-content" )
+				.appendTo( uiDialog ),
+
+			uiDialogTitlebar = ( self.uiDialogTitlebar = $( "<div>" ) )
+				.addClass( "ui-dialog-titlebar  ui-widget-header  " +
+					"ui-corner-all  ui-helper-clearfix" )
+				.prependTo( uiDialog ),
+
+			uiDialogTitlebarClose = $( "<a href='#'></a>" )
+				.addClass( "ui-dialog-titlebar-close  ui-corner-all" )
+				.attr( "role", "button" )
+				.click(function( event ) {
+					event.preventDefault();
+					self.close( event );
+				})
+				.appendTo( uiDialogTitlebar ),
+
+			uiDialogTitlebarCloseText = ( self.uiDialogTitlebarCloseText = $( "<span>" ) )
+				.addClass( "ui-icon ui-icon-closethick" )
+				.text( options.closeText )
+				.appendTo( uiDialogTitlebarClose ),
+
+			uiDialogTitle = $( "<span>" )
+				.addClass( "ui-dialog-title" )
+				.attr( "id", titleId )
+				.html( title )
+				.prependTo( uiDialogTitlebar );
+
+		uiDialogTitlebar.find( "*" ).add( uiDialogTitlebar ).disableSelection();
+		this._hoverable( uiDialogTitlebarClose );
+		this._focusable( uiDialogTitlebarClose );
+
+		if ( options.draggable && $.fn.draggable ) {
+			self._makeDraggable();
+		}
+		if ( options.resizable && $.fn.resizable ) {
+			self._makeResizable();
+		}
+
+		self._createButtons( options.buttons );
+		self._isOpen = false;
+
+		if ( $.fn.bgiframe ) {
+			uiDialog.bgiframe();
+		}
+	},
+
+	_init: function() {
+		if ( this.options.autoOpen ) {
+			this.open();
+		}
+	},
+
+	_destroy: function() {
+		var self = this;
+
+		if ( self.overlay ) {
+			self.overlay.destroy();
+		}
+		self.uiDialog.hide();
+		self.element
+			.removeClass( "ui-dialog-content ui-widget-content" )
+			.hide()
+			.appendTo( "body" );
+		self.uiDialog.remove();
+
+		if ( self.originalTitle ) {
+			self.element.attr( "title", self.originalTitle );
+		}
+	},
+
+	widget: function() {
+		return this.uiDialog;
+	},
+
+	close: function( event ) {
+		if ( !this._isOpen ) {
+			return self;
+		}
+
+		var self = this,
+			maxZ, thisZ;
+
+		if ( false === self._trigger( "beforeClose", event ) ) {
+			return;
+		}
+
+		self._isOpen = false;
+
+		if ( self.overlay ) {
+			self.overlay.destroy();
+		}
+		self.uiDialog.unbind( "keypress.ui-dialog" );
+
+		if ( self.options.hide ) {
+			self.uiDialog.hide( self.options.hide, function() {
+				self._trigger( "close", event );
+			});
+		} else {
+			self.uiDialog.hide();
+			self._trigger( "close", event );
+		}
+
+		$.ui.dialog.overlay.resize();
+
+		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
+		if ( self.options.modal ) {
+			maxZ = 0;
+			$( ".ui-dialog" ).each(function() {
+				if ( this !== self.uiDialog[0] ) {
+					thisZ = $( this ).css( "z-index" );
+					if ( !isNaN( thisZ ) ) {
+						maxZ = Math.max( maxZ, thisZ );
+					}
+				}
+			});
+			$.ui.dialog.maxZ = maxZ;
+		}
+
+		return self;
+	},
+
+	isOpen: function() {
+		return this._isOpen;
+	},
+
+	// the force parameter allows us to move modal dialogs to their correct
+	// position on open
+	moveToTop: function( force, event ) {
+		var self = this,
+			options = self.options,
+			saveScroll;
+
+		if ( ( options.modal && !force ) ||
+				( !options.stack && !options.modal ) ) {
+			return self._trigger( "focus", event );
+		}
+
+		if ( options.zIndex > $.ui.dialog.maxZ ) {
+			$.ui.dialog.maxZ = options.zIndex;
+		}
+		if ( self.overlay ) {
+			$.ui.dialog.maxZ += 1;
+			$.ui.dialog.overlay.maxZ = $.ui.dialog.maxZ;
+			self.overlay.$el.css( "z-index", $.ui.dialog.overlay.maxZ );
+		}
+
+		// Save and then restore scroll
+		// Opera 9.5+ resets when parent z-index is changed.
+		// http://bugs.jqueryui.com/ticket/3193
+		saveScroll = {
+			scrollTop: self.element.scrollTop(),
+			scrollLeft: self.element.scrollLeft()
+		};
+		$.ui.dialog.maxZ += 1;
+		self.uiDialog.css( "z-index", $.ui.dialog.maxZ );
+		self.element.attr( saveScroll );
+		self._trigger( "focus", event );
+
+		return self;
+	},
+
+	open: function() {
+		if ( this._isOpen ) {
+			return;
+		}
+
+		var self = this,
+			options = self.options,
+			uiDialog = self.uiDialog;
+
+		self._size();
+		self._position( options.position );
+		uiDialog.show( options.show );
+		self.overlay = options.modal ? new $.ui.dialog.overlay( self ) : null;
+		self.moveToTop( true );
+
+		// prevent tabbing out of modal dialogs
+		if ( options.modal ) {
+			uiDialog.bind( "keydown.ui-dialog", function( event ) {
+				if ( event.keyCode !== $.ui.keyCode.TAB ) {
+					return;
+				}
+
+				var tabbables = $( ":tabbable", this ),
+					first = tabbables.filter( ":first" ),
+					last  = tabbables.filter( ":last" );
+
+				if ( event.target === last[0] && !event.shiftKey ) {
+					first.focus( 1 );
+					return false;
+				} else if ( event.target === first[0] && event.shiftKey ) {
+					last.focus( 1 );
+					return false;
+				}
+			});
+		}
+
+		// set focus to the first tabbable element in the content area or the first button
+		// if there are no tabbable elements, set focus on the dialog itself
+		var hasFocus = self.element.find( ":tabbable" );
+		if ( !hasFocus.length ) {
+			hasFocus = uiDialog.find( ".ui-dialog-buttonpane :tabbable" );
+			if ( !hasFocus.length ) {
+				hasFocus = uiDialog;
+			}
+		}
+		hasFocus.eq( 0 ).focus();
+
+		self._isOpen = true;
+		self._trigger( "open" );
+
+		return self;
+	},
+
+	_createButtons: function( buttons ) {
+		var self = this,
+			hasButtons = false;
+
+		// if we already have a button pane, remove it
+		self.uiDialog.find( ".ui-dialog-buttonpane" ).remove();
+
+		if ( typeof buttons === "object" && buttons !== null ) {
+			$.each( buttons, function() {
+				return !(hasButtons = true);
+			});
+		}
+		if ( hasButtons ) {
+			var uiDialogButtonPane = $( "<div>" )
+					.addClass( "ui-dialog-buttonpane  ui-widget-content ui-helper-clearfix" ),
+				uiButtonSet = $( "<div>" )
+					.addClass( "ui-dialog-buttonset" )
+					.appendTo( uiDialogButtonPane );
+
+			$.each( buttons, function( name, props ) {
+				props = $.isFunction( props ) ?
+					{ click: props, text: name } :
+					props;
+				var button = $( "<button type='button'>" )
+					.attr( props, true )
+					.unbind( "click" )
+					.click(function() {
+						props.click.apply( self.element[0], arguments );
+					})
+					.appendTo( uiButtonSet );
+				if ( $.fn.button ) {
+					button.button();
+				}
+			});
+			self.uiDialog.addClass( "ui-dialog-buttons" );
+			uiDialogButtonPane.appendTo( self.uiDialog );
+		} else {
+			self.uiDialog.removeClass( "ui-dialog-buttons" );
+		}
+	},
+
+	_makeDraggable: function() {
+		var self = this,
+			options = self.options;
+
+		function filteredUi( ui ) {
+			return {
+				position: ui.position,
+				offset: ui.offset
+			};
+		}
+
+		self.uiDialog.draggable({
+			cancel: ".ui-dialog-content, .ui-dialog-titlebar-close",
+			handle: ".ui-dialog-titlebar",
+			containment: "document",
+			start: function( event, ui ) {
+				$( this )
+					.addClass( "ui-dialog-dragging" );
+				self._trigger( "dragStart", event, filteredUi( ui ) );
+			},
+			drag: function( event, ui ) {
+				self._trigger( "drag", event, filteredUi( ui ) );
+			},
+			stop: function( event, ui ) {
+				options.position = [
+					ui.position.left - self.document.scrollLeft(),
+					ui.position.top - self.document.scrollTop()
+				];
+				$( this )
+					.removeClass( "ui-dialog-dragging" );
+				self._trigger( "dragStop", event, filteredUi( ui ) );
+				$.ui.dialog.overlay.resize();
+			}
+		});
+	},
+
+	_makeResizable: function( handles ) {
+		handles = (handles === undefined ? this.options.resizable : handles);
+		var self = this,
+			options = self.options,
+			// .ui-resizable has position: relative defined in the stylesheet
+			// but dialogs have to use absolute or fixed positioning
+			position = self.uiDialog.css( "position" ),
+			resizeHandles = typeof handles === 'string' ?
+				handles	:
+				"n,e,s,w,se,sw,ne,nw";
+
+		function filteredUi( ui ) {
+			return {
+				originalPosition: ui.originalPosition,
+				originalSize: ui.originalSize,
+				position: ui.position,
+				size: ui.size
+			};
+		}
+
+		self.uiDialog.resizable({
+			cancel: ".ui-dialog-content",
+			containment: "document",
+			alsoResize: self.element,
+			maxWidth: options.maxWidth,
+			maxHeight: options.maxHeight,
+			minWidth: options.minWidth,
+			minHeight: self._minHeight(),
+			handles: resizeHandles,
+			start: function( event, ui ) {
+				$( this ).addClass( "ui-dialog-resizing" );
+				self._trigger( "resizeStart", event, filteredUi( ui ) );
+			},
+			resize: function( event, ui ) {
+				self._trigger( "resize", event, filteredUi( ui ) );
+			},
+			stop: function( event, ui ) {
+				$( this ).removeClass( "ui-dialog-resizing" );
+				options.height = $( this ).height();
+				options.width = $( this ).width();
+				self._trigger( "resizeStop", event, filteredUi( ui ) );
+				$.ui.dialog.overlay.resize();
+			}
+		})
+		.css( "position", position )
+		.find( ".ui-resizable-se" )
+			.addClass( "ui-icon ui-icon-grip-diagonal-se" );
+	},
+
+	_minHeight: function() {
+		var options = this.options;
+
+		if ( options.height === "auto" ) {
+			return options.minHeight;
+		} else {
+			return Math.min( options.minHeight, options.height );
+		}
+	},
+
+	_position: function( position ) {
+		var myAt = [],
+			offset = [ 0, 0 ],
+			isVisible;
+
+		if ( position ) {
+			// deep extending converts arrays to objects in jQuery <= 1.3.2 :-(
+	//		if (typeof position == 'string' || $.isArray(position)) {
+	//			myAt = $.isArray(position) ? position : position.split(' ');
+
+			if ( typeof position === "string" || (typeof position === "object" && "0" in position ) ) {
+				myAt = position.split ? position.split( " " ) : [ position[ 0 ], position[ 1 ] ];
+				if ( myAt.length === 1 ) {
+					myAt[ 1 ] = myAt[ 0 ];
+				}
+
+				$.each( [ "left", "top" ], function( i, offsetPosition ) {
+					if ( +myAt[ i ] === myAt[ i ] ) {
+						offset[ i ] = myAt[ i ];
+						myAt[ i ] = offsetPosition;
+					}
+				});
+
+				position = {
+					my: myAt.join( " " ),
+					at: myAt.join( " " ),
+					offset: offset.join( " " )
+				};
+			}
+
+			position = $.extend( {}, $.ui.dialog.prototype.options.position, position );
+		} else {
+			position = $.ui.dialog.prototype.options.position;
+		}
+
+		// need to show the dialog to get the actual offset in the position plugin
+		isVisible = this.uiDialog.is( ":visible" );
+		if ( !isVisible ) {
+			this.uiDialog.show();
+		}
+		this.uiDialog.position( position );
+		if ( !isVisible ) {
+			this.uiDialog.hide();
+		}
+	},
+
+	_setOptions: function( options ) {
+		var self = this,
+			resizableOptions = {},
+			resize = false;
+
+		$.each( options, function( key, value ) {
+			self._setOption( key, value );
+
+			if ( key in sizeRelatedOptions ) {
+				resize = true;
+			}
+			if ( key in resizableRelatedOptions ) {
+				resizableOptions[ key ] = value;
+			}
+		});
+
+		if ( resize ) {
+			this._size();
+		}
+		if ( this.uiDialog.is( ":data(resizable)" ) ) {
+			this.uiDialog.resizable( "option", resizableOptions );
+		}
+	},
+
+	_setOption: function( key, value ) {
+		var self = this,
+			uiDialog = self.uiDialog;
+
+		switch ( key ) {
+			case "buttons":
+				self._createButtons( value );
+				break;
+			case "closeText":
+				// ensure that we always pass a string
+				self.uiDialogTitlebarCloseText.text( "" + value );
+				break;
+			case "dialogClass":
+				uiDialog
+					.removeClass( self.options.dialogClass )
+					.addClass( uiDialogClasses + value );
+				break;
+			case "disabled":
+				if ( value ) {
+					uiDialog.addClass( "ui-dialog-disabled" );
+				} else {
+					uiDialog.removeClass( "ui-dialog-disabled" );
+				}
+				break;
+			case "draggable":
+				var isDraggable = uiDialog.is( ":data(draggable)" );
+				if ( isDraggable && !value ) {
+					uiDialog.draggable( "destroy" );
+				}
+
+				if ( !isDraggable && value ) {
+					self._makeDraggable();
+				}
+				break;
+			case "position":
+				self._position( value );
+				break;
+			case "resizable":
+				// currently resizable, becoming non-resizable
+				var isResizable = uiDialog.is( ":data(resizable)" );
+				if ( isResizable && !value ) {
+					uiDialog.resizable( "destroy" );
+				}
+
+				// currently resizable, changing handles
+				if ( isResizable && typeof value === "string" ) {
+					uiDialog.resizable( "option", "handles", value );
+				}
+
+				// currently non-resizable, becoming resizable
+				if ( !isResizable && value !== false ) {
+					self._makeResizable( value );
+				}
+				break;
+			case "title":
+				// convert whatever was passed in o a string, for html() to not throw up
+				$( ".ui-dialog-title", self.uiDialogTitlebar )
+					.html( "" + ( value || "&#160;" ) );
+				break;
+		}
+
+		this._super( key, value );
+	},
+
+	_size: function() {
+		/* If the user has resized the dialog, the .ui-dialog and .ui-dialog-content
+		 * divs will both have width and height set, so we need to reset them
+		 */
+		var options = this.options,
+			nonContentHeight,
+			minContentHeight,
+			isVisible = this.uiDialog.is( ":visible" );
+
+		// reset content sizing
+		this.element.show().css({
+			width: "auto",
+			minHeight: 0,
+			height: 0
+		});
+
+		if ( options.minWidth > options.width ) {
+			options.width = options.minWidth;
+		}
+
+		// reset wrapper sizing
+		// determine the height of all the non-content elements
+		nonContentHeight = this.uiDialog.css({
+				height: "auto",
+				width: options.width
+			})
+			.height();
+		minContentHeight = Math.max( 0, options.minHeight - nonContentHeight );
+
+		if ( options.height === "auto" ) {
+			// only needed for IE6 support
+			if ( $.support.minHeight ) {
+				this.element.css({
+					minHeight: minContentHeight,
+					height: "auto"
+				});
+			} else {
+				this.uiDialog.show();
+				var autoHeight = this.element.css( "height", "auto" ).height();
+				if ( !isVisible ) {
+					this.uiDialog.hide();
+				}
+				this.element.height( Math.max( autoHeight, minContentHeight ) );
+			}
+		} else {
+			this.element.height( Math.max( options.height - nonContentHeight, 0 ) );
+		}
+
+		if (this.uiDialog.is( ":data(resizable)" ) ) {
+			this.uiDialog.resizable( "option", "minHeight", this._minHeight() );
+		}
+	}
+});
+
+$.extend($.ui.dialog, {
+	uuid: 0,
+	maxZ: 0,
+
+	getTitleId: function($el) {
+		var id = $el.attr( "id" );
+		if ( !id ) {
+			this.uuid += 1;
+			id = this.uuid;
+		}
+		return "ui-dialog-title-" + id;
+	},
+
+	overlay: function( dialog ) {
+		this.$el = $.ui.dialog.overlay.create( dialog );
+	}
+});
+
+$.extend( $.ui.dialog.overlay, {
+	instances: [],
+	// reuse old instances due to IE memory leak with alpha transparency (see #5185)
+	oldInstances: [],
+	maxZ: 0,
+	events: $.map(
+		"focus,mousedown,mouseup,keydown,keypress,click".split( "," ),
+		function( event ) {
+			return event + ".dialog-overlay";
+		}
+	).join( " " ),
+	create: function( dialog ) {
+		if ( this.instances.length === 0 ) {
+			// prevent use of anchors and inputs
+			// we use a setTimeout in case the overlay is created from an
+			// event that we're going to be cancelling (see #2804)
+			setTimeout(function() {
+				// handle $(el).dialog().dialog('close') (see #4065)
+				if ( $.ui.dialog.overlay.instances.length ) {
+					$( document ).bind( $.ui.dialog.overlay.events, function( event ) {
+						// stop events if the z-index of the target is < the z-index of the overlay
+						// we cannot return true when we don't want to cancel the event (#3523)
+						if ( $( event.target ).zIndex() < $.ui.dialog.overlay.maxZ ) {
+							return false;
+						}
+					});
+				}
+			}, 1 );
+
+			// allow closing by pressing the escape key
+			$( document ).bind( "keydown.dialog-overlay", function( event ) {
+				if ( dialog.options.closeOnEscape && !event.isDefaultPrevented() && event.keyCode &&
+					event.keyCode === $.ui.keyCode.ESCAPE ) {
+
+					dialog.close( event );
+					event.preventDefault();
+				}
+			});
+
+			// handle window resize
+			$( window ).bind( "resize.dialog-overlay", $.ui.dialog.overlay.resize );
+		}
+
+		var $el = ( this.oldInstances.pop() || $( "<div>" ).addClass( "ui-widget-overlay" ) );
+		$el.appendTo( document.body ).css({
+			width: this.width(),
+			height: this.height()
+		});
+
+		if ( $.fn.bgiframe ) {
+			$el.bgiframe();
+		}
+
+		this.instances.push( $el );
+		return $el;
+	},
+
+	destroy: function( $el ) {
+		var indexOf = $.inArray( $el, this.instances );
+		if ( indexOf !== -1 ) {
+			this.oldInstances.push( this.instances.splice( indexOf, 1 )[ 0 ] );
+		}
+
+		if ( this.instances.length === 0 ) {
+			$( [ document, window ] ).unbind( ".dialog-overlay" );
+		}
+
+		$el.height( 0 ).width( 0 ).remove();
+
+		// adjust the maxZ to allow other modal dialogs to continue to work (see #4309)
+		var maxZ = 0;
+		$.each( this.instances, function() {
+			maxZ = Math.max( maxZ, this.css( "z-index" ) );
+		});
+		this.maxZ = maxZ;
+	},
+
+	height: function() {
+		var scrollHeight,
+			offsetHeight;
+		// handle IE
+		if ( $.browser.msie ) {
+			scrollHeight = Math.max(
+				document.documentElement.scrollHeight,
+				document.body.scrollHeight
+			);
+			offsetHeight = Math.max(
+				document.documentElement.offsetHeight,
+				document.body.offsetHeight
+			);
+
+			if ( scrollHeight < offsetHeight ) {
+				return $( window ).height() + "px";
+			} else {
+				return scrollHeight + "px";
+			}
+		// handle "good" browsers
+		} else {
+			return $( document ).height() + "px";
+		}
+	},
+
+	width: function() {
+		var scrollWidth,
+			offsetWidth;
+		// handle IE
+		if ( $.browser.msie ) {
+			scrollWidth = Math.max(
+				document.documentElement.scrollWidth,
+				document.body.scrollWidth
+			);
+			offsetWidth = Math.max(
+				document.documentElement.offsetWidth,
+				document.body.offsetWidth
+			);
+
+			if ( scrollWidth < offsetWidth ) {
+				return $( window ).width() + "px";
+			} else {
+				return scrollWidth + "px";
+			}
+		// handle "good" browsers
+		} else {
+			return $( document ).width() + "px";
+		}
+	},
+
+	resize: function() {
+		/* If the dialog is draggable and the user drags it past the
+		 * right edge of the window, the document becomes wider so we
+		 * need to stretch the overlay. If the user then drags the
+		 * dialog back to the left, the document will become narrower,
+		 * so we need to shrink the overlay to the appropriate size.
+		 * This is handled by shrinking the overlay before setting it
+		 * to the full document size.
+		 */
+		var $overlays = $( [] );
+		$.each( $.ui.dialog.overlay.instances, function() {
+			$overlays = $overlays.add( this );
+		});
+
+		$overlays.css({
+			width: 0,
+			height: 0
+		}).css({
+			width: $.ui.dialog.overlay.width(),
+			height: $.ui.dialog.overlay.height()
+		});
+	}
+});
+
+$.extend( $.ui.dialog.overlay.prototype, {
+	destroy: function() {
+		$.ui.dialog.overlay.destroy( this.$el );
+	}
+});
+
+}( jQuery ) );
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