text: /**
   * Copyright (c) 2006-2017, JGraph Ltd
   * Copyright (c) 2006-2017, Gaudenz Alder
   */
  (function()
  {
  	/**
  	 * Version
  	 */
  	EditorUi.VERSION = '@DRAWIO-VERSION@';
  	
  	/**
  	 * Overrides compact UI setting.
  	 */
  	EditorUi.compactUi = uiTheme != 'atlas';
  	
  	/**
  	 * Switch to disable logging for mode and search terms.
  	 */
  	EditorUi.enableLogging = /.*\.draw\.io$/.test(window.location.hostname) &&
  		window.location.hostname != 'support.draw.io';
  
  	/**
  	 * Switch to enable PlantUML in the insert from text dialog.
  	 * NOTE: This must also be enabled on the server-side.
  	 */
  	EditorUi.enablePlantUml = EditorUi.enableLogging;
  
  	/**
  	 * https://github.com/electron/electron/issues/2288
  	 */
  	EditorUi.isElectronApp = window != null && window.process != null &&
  		window.process.versions != null && window.process.versions['electron'] != null;
  
  	/**
  	 * Link for scratchpad help.
  	 */
  	EditorUi.scratchpadHelpLink = 'https://desk.draw.io/support/solutions/articles/16000042367';
  	
  	/**
  	 * Contains the default XML for an empty diagram.
  	 */
  	EditorUi.prototype.emptyDiagramXml = '<mxGraphModel><root><mxCell id="0"/><mxCell id="1" parent="0"/></root></mxGraphModel>';
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.emptyLibraryXml = '<mxlibrary>[]</mxlibrary>';
  
  	/**
  	 * Sets the delay for autosave in milliseconds. Default is 2000.
  	 */
  	EditorUi.prototype.mode = null;
  
  	/**
  	 * Allows for two buttons in the sidebar footer.
  	 */
  	EditorUi.prototype.sidebarFooterHeight = 36;
  
  	/**
  	 * Specifies the default custom shape style.
  	 */
  	EditorUi.prototype.defaultCustomShapeStyle = 'shape=stencil(tZRtTsQgEEBPw1+DJR7AoN6DbWftpAgE0Ortd/jYRGq72R+YNE2YgTePloEJGWblgA18ZuKFDcMj5/Sm8boZq+BgjCX4pTyqk6ZlKROitwusOMXKQDODx5iy4pXxZ5qTHiFHawxB0JrQZH7lCabQ0Fr+XWC1/E8zcsT/gAi+Subo2/3Mh6d/oJb5nU1b5tW7r2knautaa3T+U32o7f7vZwpJkaNDLORJjcu7t59m2jXxqX9un+tt022acsfmoKaQZ+vhhswZtS6Ne/ThQGt0IV0N3Yyv6P3CeT9/tHO0XFI5cAE=);whiteSpace=wrap;html=1;';
  
  	/**
  	 * Broken image symbol for offline SVG.
  	 */
  	EditorUi.prototype.svgBrokenImage = Graph.createSvgImage(10, 10, '<rect x="0" y="0" width="10" height="10" stroke="#000" fill="transparent"/><path d="m 0 0 L 10 10 L 0 10 L 10 0" stroke="#000" fill="transparent"/>');
  
  	/**
  	 * Specifies if img.crossOrigin is supported. This is true for all browsers except IE10 and earlier.
  	 */
  	EditorUi.prototype.crossOriginImages = !mxClient.IS_IE;
  	
  	/**
  	 * Defines the maximum size for images.
  	 */
  	EditorUi.prototype.maxBackgroundSize = 1600;
  
  	/**
  	 * Defines the maximum size for images.
  	 */
  	EditorUi.prototype.maxImageSize = 520;
  
  	/**
  	 * Images above 100K should be resampled.
  	 */
  	EditorUi.prototype.resampleThreshold = 100000;
  
  	/**
  	 * Maximum allowed size for images is 1 MB.
  	 */
  	EditorUi.prototype.maxImageBytes = 1000000;
  
  	/**
  	 * Maximum size for background images is 2.5 MB.
  	 */
  	EditorUi.prototype.maxBackgroundBytes = 2500000;
  
  	/**
  	 * Holds the current file.
  	 */
  	EditorUi.prototype.currentFile = null;
  
  	/**
  	 * Specifies if PDF export should be done via print dialog. Default is
  	 * false which uses the PhantomJS backend to create the PDF.
  	 */
  	EditorUi.prototype.printPdfExport = false;
  	
  	/**
  	 * Specifies if PDF export with pages is enabled.
  	 */
  	EditorUi.prototype.pdfPageExport = true;
  
  	/**
  	 * Restores app defaults for UI
  	 */
  	EditorUi.prototype.formatEnabled = urlParams['format'] != '0';
  
  	/**
  	 * Restores app defaults for UI
  	 */
  	EditorUi.prototype.closableScratchpad = true;
  
  	/**
  	 * Specifies if current edge style should be persisted. Default is false.
  	 */
  	EditorUi.prototype.persistCurrentEdgeStyle = false;
  
  	/**
  	 * Specifies if current vertex style should be persisted. Default is false.
  	 */
  	EditorUi.prototype.persistCurrentVertexStyle = false;
  	
  	/**
  	 * Capability check for canvas export
  	 */
  	(function()
  	{
  		EditorUi.prototype.useCanvasForExport = false;
  		EditorUi.prototype.jpgSupported = false;
  		
  		// Checks if canvas is supported
  		try
  		{
  			var cnv = document.createElement('canvas');
  			EditorUi.prototype.canvasSupported = !!(cnv.getContext && cnv.getContext('2d'));
  		}
  		catch (e)
  		{
  			// ignore
  		}
  		
  		try
  		{
  			var canvas = document.createElement('canvas');
  			var img = new Image();
  			
  			// LATER: Capability check should not be async
  			img.onload = function()
  			{
  				try
  				{
  			   		var ctx = canvas.getContext('2d');
  			   		ctx.drawImage(img, 0, 0);
  
  			   		// Works in Chrome, Firefox, Edge, Safari and Opera
  					var result = canvas.toDataURL('image/png');
  					EditorUi.prototype.useCanvasForExport = result != null && result.length > 6;
  				}
  				catch (e)
  				{
  					// ignore
  				}
  			};
  
  			// Checks if SVG with foreignObject can be exported
  			var svg = '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1px" height="1px" version="1.1"><foreignObject pointer-events="all" width="1" height="1"><div xmlns="http://www.w3.org/1999/xhtml"></div></foreignObject></svg>';
  			img.src = 'data:image/svg+xml;base64,' + btoa(unescape(encodeURIComponent(svg)));
  		}
  		catch (e)
  		{
  			// ignore
  		}
  		
  		// Checks for client-side JPG support
  		try
  		{
  		    var canvas = document.createElement('canvas');
  		    canvas.width = canvas.height = 1;
  		    var uri = canvas.toDataURL('image/jpeg');
  		    
  		    EditorUi.prototype.jpgSupported = (uri.match('image/jpeg') !== null);
  		}
  		catch (e)
  		{
  			// ignore
  		}
  	})();
  
  	/**
  	 * Hook for subclassers.
  	 */
  	EditorUi.prototype.openLink = function(url, target)
  	{
  		// LATER: Replace this with direct calls to graph
  		return this.editor.graph.openLink(url, target);
  	};
  
  	/**
  	 * Hook for subclassers.
  	 */
  	EditorUi.prototype.showSplash = function(force) { };
  
  	/**
  	 * Abstraction for local storage access.
  	 */
  	EditorUi.prototype.getLocalData = function(key, fn)
  	{
  		fn(localStorage.getItem(key));
  	};
  	
  	/**
  	 * Abstraction for local storage access.
  	 */
  	EditorUi.prototype.setLocalData = function(key, data, fn)
  	{
  		localStorage.setItem(key, data);
  		
  		if (fn != null)
  		{
  			fn();
  		}
  	};
  	
  	/**
  	 * Abstraction for local storage access.
  	 */
  	EditorUi.prototype.removeLocalData = function(key, fn)
  	{
  		localStorage.removeItem(key)
  		fn();
  	};
  
  	EditorUi.prototype.setMathEnabled = function(value)
  	{
  		this.editor.graph.mathEnabled = value;
  		this.editor.updateGraphComponents();
  		this.editor.graph.refresh();
  		
  		this.fireEvent(new mxEventObject('mathEnabledChanged'));
  	};
  
  	EditorUi.prototype.isMathEnabled = function(value)
  	{
  		return this.editor.graph.mathEnabled;
  	};
  	
  	/**
  	 * Returns true if using application cache
  	 */
  	EditorUi.prototype.isAppCache = function()
  	{
  		return (urlParams['appcache'] == '1' || this.isOfflineApp());
  	};
  	
  	/**
  	 * Returns true if offline app, which isn't a defined thing
  	 */
  	EditorUi.prototype.isOfflineApp = function()
  	{
  		return (urlParams['offline'] == '1');
  	};
  
  	/**
  	 * Returns true if no external comms allowed or possible
  	 */
  	EditorUi.prototype.isOffline = function()
  	{
  		return this.isOfflineApp() || !navigator.onLine || urlParams['stealth'] == '1';
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.createSpinner = function(x, y, size)
  	{
  		size = (size != null) ? size : 24;
  
  		var spinner = new Spinner({
  			lines: 12, // The number of lines to draw
  			length: size, // The length of each line
  			width: Math.round(size / 3), // The line thickness
  			radius: Math.round(size / 2), // The radius of the inner circle
  			rotate: 0, // The rotation offset
  			color: (uiTheme == 'dark') ? '#c0c0c0' : '#000', // #rgb or #rrggbb
  			speed: 1.5, // Rounds per second
  			trail: 60, // Afterglow percentage
  			shadow: false, // Whether to render a shadow
  			hwaccel: false, // Whether to use hardware acceleration
  			zIndex: 2e9 // The z-index (defaults to 2000000000)
  		});
  
  		// Extends spin method to include an optional label
  		var oldSpin = spinner.spin;
  		
  		spinner.spin = function(container, label)
  		{
  			var result = false;
  			
  			if (!this.active)
  			{
  				oldSpin.call(this, container);
  				this.active = true;
  				
  				if (label != null)
  				{
  					var status = document.createElement('div');
  					status.style.position = 'absolute';
  					status.style.whiteSpace = 'nowrap';
  					status.style.background = '#4B4243';
  					status.style.color = 'white';
  					status.style.fontFamily = 'Helvetica, Arial';
  					status.style.fontSize = '9pt';
  					status.style.padding = '6px';
  					status.style.paddingLeft = '10px';
  					status.style.paddingRight = '10px';
  					status.style.zIndex = 2e9;
  					status.style.left = Math.max(0, x) + 'px';
  					status.style.top = Math.max(0, y + 70) + 'px';
  					
  					mxUtils.setPrefixedStyle(status.style, 'borderRadius', '6px');
  					mxUtils.setPrefixedStyle(status.style, 'transform', 'translate(-50%,-50%)');
  
  					if (uiTheme != 'dark')
  					{
  						mxUtils.setPrefixedStyle(status.style, 'boxShadow', '2px 2px 3px 0px #ddd');
  					}
  					
  					status.innerHTML = label + '...';
  					container.appendChild(status);
  					spinner.status = status;
  					
  					// Centers the label in older IE versions
  					if (mxClient.IS_VML && (document.documentMode == null || document.documentMode <= 8))
  					{
  						status.style.left = Math.round(Math.max(0, x - status.offsetWidth / 2)) + 'px';
  						status.style.top = Math.round(Math.max(0, y + 70 - status.offsetHeight / 2)) + 'px';
  					}
  				}
  				
  				// Pause returns a function to resume the spinner
  				this.pause = mxUtils.bind(this, function()
  				{
  					var fn = function() { };
  					
  					if (this.active)
  					{
  						fn = mxUtils.bind(this, function()
  						{
  							this.spin(container, label);
  						});
  					}
  					
  					this.stop();
  					
  					return fn;
  				});
  				
  				result = true;
  			}
  				
  			return result;
  		};
  		
  		// Extends stop method to remove the optional label
  		var oldStop = spinner.stop;
  		
  		spinner.stop = function()
  		{
  			oldStop.call(this);
  			this.active = false;
  			
  			if (spinner.status != null)
  			{
  				spinner.status.parentNode.removeChild(spinner.status);
  				spinner.status = null;
  			}
  		};
  		
  		spinner.pause = function()
  		{
  			return function() {};
  		};
  		
  		return spinner;
  	};
  
  	/**
  	 * Static method for pasing PNG files.
  	 */
  	EditorUi.parsePng = function(f, fn, error)
  	{
  		var pos = 0;
  		
  		function fread(d, count)
  		{
  			var start = pos;
  			pos += count;
  			
  			return d.substring(start, pos);
  		};
  		
  		// Reads unsigned long 32 bit big endian
  		function _freadint(d)
  		{
  			var bytes = fread(d, 4);
  			
  			return bytes.charCodeAt(3) + (bytes.charCodeAt(2) << 8) +
  				(bytes.charCodeAt(1) << 16) + (bytes.charCodeAt(0) << 24);
  		};
  		
  		// Checks signature
  		if (fread(f,8) != String.fromCharCode(137) + 'PNG' + String.fromCharCode(13, 10, 26, 10))
  		{
  			if (error != null)
  			{
  				error();
  			}
  			
  			return;
  		}
  		
  		// Reads header chunk
  		fread(f,4);
  		
  		if (fread(f,4) != 'IHDR')
  		{
  			if (error != null)
  			{
  				error();
  			}
  			
  			return;
  		}
  		
  		fread(f, 17);
  		
  		do
  		{
  			var n = _freadint(f);
  			var type = fread(f,4);
  			
  			if (fn != null)
  			{
  				if (fn(pos - 8, type, n))
  				{
  					break;
  				}
  			}
  			
  			value = fread(f,n);
  			fread(f,4);
  			
  			if (type == 'IEND')
  			{
  				break;
  			}
  		}
  		while (n);
  	};
  
  	/**
  	 * Returns true if the given string contains a compatible graph model.
  	 */
  	EditorUi.prototype.isCompatibleString = function(data)
  	{
  		try
  		{
  			var doc = mxUtils.parseXml(data);
  			var node = this.editor.extractGraphModel(doc.documentElement, true);
  			
  			return node != null && node.getElementsByTagName('parsererror').length == 0;
  		}
  		catch (e)
  		{
  			// ignore
  		}
  		
  		return false;
  	};
  
  	/**
  	 * Extracts the mxfile from the given HTML data from a data transfer event.
  	 */
  	var editorUiExtractGraphModelFromHtml = EditorUi.prototype.extractGraphModelFromHtml;
  	EditorUi.prototype.extractGraphModelFromHtml = function(data)
  	{
  		var result = editorUiExtractGraphModelFromHtml.apply(this, arguments);
  		
  		if (result == null)
  		{
  			try
  			{
  		    	var idx = data.indexOf('&lt;mxfile ');
  		    	
  		    	if (idx >= 0)
  		    	{
  		    		var idx2 = data.lastIndexOf('&lt;/mxfile&gt;');
  		    		
  		    		if (idx2 > idx)
  		    		{
  		    			result = data.substring(idx, idx2 + 15).replace(/&gt;/g, '>').
  		    				replace(/&lt;/g, '<').replace(/\\&quot;/g, '"').replace(/\n/g, '');
  		    		}
  		    	}
  		    	else
  		    	{
  		    		// Gets compressed data from mxgraph element in HTML document
  					var doc = mxUtils.parseXml(data);
  					var node = this.editor.extractGraphModel(doc.documentElement, this.pages != null ||
  						this.diagramContainer.style.visibility == 'hidden');
  					result = (node != null) ? mxUtils.getXml(node) : '';
  		    	}
  			}
  			catch (e)
  			{
  				// ignore
  			}
  		}
  		
  		return result;
  	};
  		
  	/**
  	 * Workaround for malformed xhtml meta element bug 07.08.16. The trailing slash was missing causing
  	 * reopen to fail trying to parse. Used in replaceFileData, setFileData and importFile.
  	 */
  	EditorUi.prototype.validateFileData = function(data)
  	{
  		if (data != null && data.length > 0)
  		{
  			var index = data.indexOf('<meta charset="utf-8">');
  			
  			if (index >= 0)
  			{
  				var replaceString = '<meta charset="utf-8"/>';
  				var replaceStrLen = replaceString.length;
  				data = data.slice(0, index) + replaceString + data.slice(index + replaceStrLen - 1, data.length);
  			}
  		}
  		
  		return data;
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.replaceFileData = function(data)
  	{
  		data = this.validateFileData(data);
  		var node = (data != null && data.length > 0) ? mxUtils.parseXml(data).documentElement : null;
  
  		// Some nodes must be extracted here to find the mxfile node
  		// LATER: Remove duplicate call to extractGraphModel in overridden setGraphXml
  		var tmp = (node != null) ? this.editor.extractGraphModel(node, true) : null;
  		
  		if (tmp != null)
  		{
  			node = tmp;
  		}
  
  		if (node != null)
  		{
  			var graph = this.editor.graph;
  			
  			graph.model.beginUpdate();
  			try
  			{
  				var oldPages = (this.pages != null) ? this.pages.slice() : null;
  				var nodes = node.getElementsByTagName('diagram');
  
  				if (urlParams['pages'] != '0' || nodes.length > 1 ||
  					(nodes.length == 1 && nodes[0].hasAttribute('name')))
  				{
  					this.fileNode = node;
  					this.pages = (this.pages != null) ? this.pages : [];
  					
  					// Wraps page nodes
  					for (var i = nodes.length - 1; i >= 0; i--)
  					{
  						var page = this.updatePageRoot(new DiagramPage(nodes[i]));
  						
  						// Checks for invalid page names
  						if (page.getName() == null)
  						{
  							page.setName(mxResources.get('pageWithNumber', [i + 1]));
  						}
  
  						graph.model.execute(new ChangePage(this, page, (i == 0) ? page : null, 0));
  					}
  				}
  				else
  				{
  					// Creates tabbed file structure if enforced by URL
  					if (urlParams['pages'] != '0' && this.fileNode == null)
  					{
  						this.fileNode = node.ownerDocument.createElement('mxfile');
  						this.currentPage = new DiagramPage(node.ownerDocument.createElement('diagram'));
  						this.currentPage.setName(mxResources.get('pageWithNumber', [1]));
  						graph.model.execute(new ChangePage(this, this.currentPage, this.currentPage, 0));
  					}
  					
  					// Avoids scroll offset when switching page
  					this.editor.setGraphXml(node);
  					
  					// Avoids duplicate parsing of the XML stored in the node
  					if (this.currentPage != null)
  					{
  						this.currentPage.root = this.editor.graph.model.root;
  					}
  				}
  				
  				if (oldPages != null)
  				{
  					for (var i = 0; i < oldPages.length; i++)
  					{
  						graph.model.execute(new ChangePage(this, oldPages[i], null));
  					}
  				}
  			}
  			finally
  			{
  				graph.model.endUpdate();
  			}
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.createFileData = function(node, graph, file, url, forceXml, forceSvg, forceHtml, embeddedCallback, ignoreSelection, compact)
  	{
  		graph = (graph != null) ? graph : this.editor.graph;
  		forceXml = (forceXml != null) ? forceXml : false;
  		ignoreSelection = (ignoreSelection != null) ? ignoreSelection : true;
  		
  		var editLink = null;
  		var redirect = null;
  		
  		if (file == null || file.getMode() == App.MODE_DEVICE || file.getMode() == App.MODE_BROWSER)
  		{
  			editLink = '_blank';
  		}
  		else
  		{
  			editLink = url;
  			redirect = editLink;
  		}
  			
  		if (node == null)
  		{
  			return '';
  		}
  		else
  		{
  			var fileNode = node;
  	
  			// Ignores case for possible HTML or XML nodes
  			if (fileNode.nodeName.toLowerCase() != 'mxfile')
  			{
  				// Removes control chars in input for correct roundtrip check
  				var text = graph.zapGremlins(mxUtils.getXml(node));
  				var data = graph.compress(text);
  				
  				// Fallback to plain XML for invalid compression
  				// TODO: Remove this fallback with active pages
  				if (graph.decompress(data) != text)
  				{
  					return text;
  				}
  				else
  				{
  					var diagramNode = node.ownerDocument.createElement('diagram');
  					mxUtils.setTextContent(diagramNode, data);
  					
  					fileNode = node.ownerDocument.createElement('mxfile');
  					fileNode.appendChild(diagramNode);
  				}
  			}
  			
  			if (!compact)
  			{
  				fileNode.setAttribute('userAgent', navigator.userAgent);
  				fileNode.setAttribute('version', EditorUi.VERSION);
  				fileNode.setAttribute('editor', 'www.draw.io');
  		
  				var md = (file != null) ? file.getMode() : this.mode;
  				
  				if (md != null)
  				{
  					fileNode.setAttribute('type', md);
  				}
  			}
  			else
  			{
  				fileNode = fileNode.cloneNode(true);
  				fileNode.removeAttribute('userAgent');
  				fileNode.removeAttribute('version');
  				fileNode.removeAttribute('editor');
  				fileNode.removeAttribute('type');
  			}
  
  			var xml = mxUtils.getXml(fileNode);
  			
  			// Writes the file as an embedded HTML file
  			if (!forceSvg && !forceXml && (forceHtml || (file != null && /(\.html)$/i.test(file.getTitle()))))
  			{
  				xml = this.getHtml2(mxUtils.getXml(fileNode), graph, (file != null) ? file.getTitle() : null, editLink, redirect);
  			}
  			// Maps the XML data to the content attribute in the SVG node 
  			else if (forceSvg || (!forceXml && file != null && /(\.svg)$/i.test(file.getTitle())))
  			{
  				if (file != null && (file.getMode() == App.MODE_DEVICE || file.getMode() == App.MODE_BROWSER))
  				{
  					url = null;
  				}
  				
  				xml = this.getEmbeddedSvg(xml, graph, url, null, embeddedCallback, ignoreSelection, redirect);
  			}
  			
  			return xml;
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.getXmlFileData = function(ignoreSelection, currentPage)
  	{
  		ignoreSelection = (ignoreSelection != null) ? ignoreSelection : true;
  		currentPage = (currentPage != null) ? currentPage : false;
  		
  		var node = this.editor.getGraphXml(ignoreSelection);
  			
  		if (ignoreSelection && this.fileNode != null && this.currentPage != null)
  		{
  			var data = this.editor.graph.compress(this.editor.graph.zapGremlins(mxUtils.getXml(node)));
  			mxUtils.setTextContent(this.currentPage.node, data);
  			node = this.fileNode.cloneNode(false);
  			
  			if (currentPage)
  			{
  				node.appendChild(this.currentPage.node);
  			}
  			else
  			{
  				// Restores order of pages
  				for (var i = 0; i < this.pages.length; i++)
  				{
  					var mapping = this.pages[i].mapping;
  					
  					// Updates XML of all pages for realtime
  					if (this.currentPage != this.pages[i] && mapping != null && mapping.needsUpdate)
  					{
  						var enc = new mxCodec(mxUtils.createXmlDocument());
  						var temp = enc.encode(mapping.graphModel);
  					
  						// Uses the graph state from the realtime model
  						mapping.writeRealtimeToNode(temp);					
  		
  						var data = this.editor.graph.compress(this.editor.graph.zapGremlins(mxUtils.getXml(temp)));
  						mxUtils.setTextContent(this.pages[i].node, data);
  						
  						// Marks the page as up-to-date
  						mapping.needsUpdate = false;
  					}
  					
  					node.appendChild(this.pages[i].node);
  				}
  			}
  		}
  		
  		return node;
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.getFileData = function(forceXml, forceSvg, forceHtml, embeddedCallback, ignoreSelection, currentPage, node, compact, file)
  	{
  		ignoreSelection = (ignoreSelection != null) ? ignoreSelection : true;
  		currentPage = (currentPage != null) ? currentPage : false;
  		
  		node = (node != null) ? node : this.getXmlFileData(ignoreSelection, currentPage);
  		file = (file != null) ? file : this.getCurrentFile();
  		var graph = this.editor.graph;
  		
  		// Exports SVG for first page while other page is visible by creating a graph
  		// LATER: Add caching for the graph or SVG while not on first page
  		if (this.pages != null && this.currentPage != this.pages[0] && (forceSvg ||
  			(!forceXml && file != null && /(\.svg)$/i.test(file.getTitle()))))
  		{
  			graph = this.createTemporaryGraph(graph.getStylesheet());
  			var graphGetGlobalVariable = graph.getGlobalVariable;
  			var page = this.pages[0];
  	
  			graph.getGlobalVariable = function(name)
  			{
  				if (name == 'page')
  				{
  					return page.getName();
  				}
  				else if (name == 'pagenumber')
  				{
  					return 1;
  				}
  				
  				return graphGetGlobalVariable.apply(this, arguments);
  			};
  	
  			document.body.appendChild(graph.container);
  			graph.model.setRoot(page.root);
  		}
  		
  		var result = this.createFileData(node, graph, file, window.location.href,
  			forceXml, forceSvg, forceHtml, embeddedCallback, ignoreSelection, compact);
  		
  		// Removes temporary graph from DOM
  		if (graph != this.editor.graph)
  		{
  			graph.container.parentNode.removeChild(graph.container);
  		}
  		
  		return result;
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.getHtml = function(node, graph, title, editLink, redirect, ignoreSelection)
  	{
  		ignoreSelection = (ignoreSelection != null) ? ignoreSelection : true;
  		var bg = null;
  		var js = 'https://www.draw.io/js/embed-static.min.js';
  	
  		// LATER: Merge common code with EmbedDialog
  		if (graph != null)
  		{
  			var bounds = (ignoreSelection) ? graph.getGraphBounds() : graph.getBoundingBox(graph.getSelectionCells());
  			var scale = graph.view.scale;
  			var x0 = Math.floor(bounds.x / scale - graph.view.translate.x);
  			var y0 = Math.floor(bounds.y / scale - graph.view.translate.y);
  			bg = graph.background;
  	
  			// Embed script only used if no redirect
  			if (redirect == null)
  			{
  				var s = this.getBasenames().join(';');
  	
  				if (s.length > 0)
  				{
  					js = 'https://www.draw.io/embed.js?s=' + s;
  				}
  			}
  			
  			// Adds embed attributes
  			node.setAttribute('x0', x0);
  			node.setAttribute('y0', y0);
  		}
  		
  		if (node != null)
  		{
  			node.setAttribute('pan', '1');
  			node.setAttribute('zoom', '1');
  			node.setAttribute('resize', '0');
  			node.setAttribute('fit', '0');
  			node.setAttribute('border', '20');
  			
  			// Hidden attributes
  			node.setAttribute('links', '1');
  			
  			if (editLink != null)
  			{
  				node.setAttribute('edit', editLink);
  			}
  		}
  		
  		// Makes XHTML compatible
  		if (redirect != null)
  		{
  			redirect = redirect.replace(/&/g, '&amp;');
  		}
  	
  		// Removes control chars in input for correct roundtrip check
  		var text = (node != null) ? this.editor.graph.zapGremlins(mxUtils.getXml(node)) : '';
  		
  		// Double compression for mxfile not fixed since it may cause imcompatibilites with
  		// embed clients that rely on this format. HTML files and export use getHtml2.
  		var data = this.editor.graph.compress(text);
  		
  		// Fallback to URI encoded XML for invalid compression
  		if (this.editor.graph.decompress(data) != text)
  		{
  			data = encodeURIComponent(text);
  		}
  		
  		var style = 'position:relative;overflow:auto;width:100%;';
  	
  		return ((redirect == null) ? '<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=5,IE=9" ><![endif]-->\n' : '') +
  			'<!DOCTYPE html>\n<html' + ((redirect != null) ? ' xmlns="http://www.w3.org/1999/xhtml">' : '>') +
  			'\n<head>\n' + ((redirect == null) ? ((title != null) ? '<title>' + mxUtils.htmlEntities(title) +
  				'</title>\n' : '') : '<title>Draw.io Diagram</title>\n') +
  			((redirect != null) ? '<meta http-equiv="refresh" content="0;URL=\'' + redirect + '\'"/>\n' : '') +
  			'</head>\n<body' +
  			(((redirect == null && bg != null && bg != mxConstants.NONE) ? ' style="background-color:' + bg + ';">' : '>')) +
  			'\n<div class="mxgraph" style="' + style + '">\n' +
  			'<div style="width:1px;height:1px;overflow:hidden;">' + data + '</div>\n</div>\n' +
  			((redirect == null) ? '<script type="text/javascript" src="' + js + '"></script>' :
  			'<a style="position:absolute;top:50%;left:50%;margin-top:-128px;margin-left:-64px;" ' +
  			'href="' + redirect + '" target="_blank"><img border="0" ' +
  			'src="https://www.draw.io/images/drawlogo128.png"/></a>') +
  			'\n</body>\n</html>\n';
  	};
  	
  	/**
  	 * Same as above but using the new embed code.
  	 */
  	EditorUi.prototype.getHtml2 = function(xml, graph, title, editLink, redirect)
  	{
  		var bg = null;
  		var js = 'https://www.draw.io/js/viewer.min.js';
  		var s = '';
  	
  		// Makes XHTML compatible
  		if (redirect != null)
  		{
  			redirect = redirect.replace(/&/g, '&amp;');
  		}
  		
  		var data = {highlight: '#0000ff', nav: this.editor.graph.foldingEnabled, resize: true,
  			xml: this.editor.graph.zapGremlins(xml), toolbar: 'pages zoom layers lightbox'};
  		
  		if (this.pages != null && this.currentPage != null)
  		{
  			data.page = mxUtils.indexOf(this.pages, this.currentPage);
  		}
  	
  		var style = 'max-width:100%;border:1px solid transparent;';
  	
  		return ((redirect == null) ? '<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=5,IE=9" ><![endif]-->\n' : '') +
  			'<!DOCTYPE html>\n<html' + ((redirect != null) ? ' xmlns="http://www.w3.org/1999/xhtml">' : '>') +
  			'\n<head>\n' + ((redirect == null) ? ((title != null) ? '<title>' + mxUtils.htmlEntities(title) +
  				'</title>\n' : '') : '<title>Draw.io Diagram</title>\n') +
  			((redirect != null) ? '<meta http-equiv="refresh" content="0;URL=\'' + redirect + '\'"/>\n' : '') +
  			'<meta charset="utf-8"/>\n</head>\n<body>' +
  			'\n<div class="mxgraph" style="' + style + '" data-mxgraph="' + mxUtils.htmlEntities(JSON.stringify(data)) + '"></div>\n' +
  			((redirect == null) ? '<script type="text/javascript" src="' + js + '"></script>' :
  			'<a style="position:absolute;top:50%;left:50%;margin-top:-128px;margin-left:-64px;" ' +
  			'href="' + redirect + '" target="_blank"><img border="0" ' +
  			'src="https://www.draw.io/images/drawlogo128.png"/></a>') +
  			'\n</body>\n</html>\n';
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.setFileData = function(data)
  	{
  		data = this.validateFileData(data);
  		this.currentPage = null;
  		this.fileNode = null;
  		this.pages = null;
  
  		var node = (data != null && data.length > 0) ? mxUtils.parseXml(data).documentElement : null;
  
  		// Some nodes must be extracted here to find the mxfile node
  		// LATER: Remove duplicate call to extractGraphModel in overridden setGraphXml
  		var tmp = (node != null) ? this.editor.extractGraphModel(node, true) : null;
  		
  		if (tmp != null)
  		{
  			node = tmp;
  		}
  
  		if (node != null && node.nodeName == 'mxfile')
  		{
  			var nodes = node.getElementsByTagName('diagram');
  
  			if (urlParams['pages'] != '0' || nodes.length > 1 ||
  				(nodes.length == 1 && nodes[0].hasAttribute('name')))
  			{
  				this.fileNode = node;
  				this.pages = [];
  				
  				// Wraps page nodes
  				for (var i = 0; i < nodes.length; i++)
  				{
  					var page = new DiagramPage(nodes[i]);
  					
  					// Checks for invalid page names
  					if (page.getName() == null)
  					{
  						page.setName(mxResources.get('pageWithNumber', [i + 1]));
  					}
  					
  					this.pages.push(page);
  				}
  				
  				this.currentPage = this.pages[Math.max(0, Math.min(this.pages.length - 1, urlParams['page'] || 0))];
  				node = this.currentPage.node;
  			}
  		}
  		
  		// Creates tabbed file structure if enforced by URL
  		if (urlParams['pages'] != '0' && this.fileNode == null && node != null)
  		{
  			this.fileNode = node.ownerDocument.createElement('mxfile');
  			this.currentPage = new DiagramPage(node.ownerDocument.createElement('diagram'));
  			this.currentPage.setName(mxResources.get('pageWithNumber', [1]));
  	 	 	this.pages = [this.currentPage];
  		}
  		
  		// Avoids scroll offset when switching page
  		this.editor.setGraphXml(node);
  		
  		// Avoids duplicate parsing of the XML stored in the node
  		if (this.currentPage != null)
  		{
  			this.currentPage.root = this.editor.graph.model.root;
  		}
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.getBaseFilename = function(ignorePageName)
  	{
  		var file = this.getCurrentFile();
  		var basename = (file != null && file.getTitle() != null) ? file.getTitle() : this.defaultFilename;
  		
  		if (/(\.xml)$/i.test(basename) || /(\.html)$/i.test(basename) ||
  			/(\.svg)$/i.test(basename) || /(\.png)$/i.test(basename))
  		{
  			basename = basename.substring(0, basename.lastIndexOf('.'));
  		}
  
  		if (!ignorePageName && this.pages != null && this.pages.length > 1 &&
  			this.currentPage != null && this.currentPage.node.getAttribute('name') != null &&
  			this.currentPage.getName().length > 0)
  		{
  			basename = basename + '-' + this.currentPage.getName();
  		}
  		
  		return basename;
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.downloadFile = function(format, nonCompressed, addShadow, ignoreSelection, currentPage, pageVisible, transparent)
  	{
  		try
  		{
  			ignoreSelection = (ignoreSelection != null) ? ignoreSelection : this.editor.graph.isSelectionEmpty();
  			var basename = this.getBaseFilename(!currentPage);
  			var filename = basename + '.' + format;
  			
  			if (format == 'xml')
  			{
  		    	var data = '<?xml version="1.0" encoding="UTF-8"?>\n' +
  		    		((nonCompressed) ? mxUtils.getXml(this.editor.getGraphXml(ignoreSelection)) :
  		    			this.getFileData(true, null, null, null, ignoreSelection, currentPage));
  		    	
  		    	this.saveData(filename, format, data, 'text/xml');
  			}
  		    else if (format == 'html')
  		    {
  		    	var data = this.getHtml2(this.getFileData(true), this.editor.graph, basename);
  		    	this.saveData(filename, format, data, 'text/html');
  		    }
  		    else if ((format == 'svg' || format == 'xmlsvg') && this.spinner.spin(document.body, mxResources.get('export')))
  		    {
  		    	var svg = null;
  		    	
  		    	var saveSvg = mxUtils.bind(this, function(data)
  		    	{
  		    		if (data.length <= MAX_REQUEST_SIZE)
  		    		{
  		    	    		this.saveData(filename, 'svg', data, 'image/svg+xml');
  		    		}
  		    		else
  		    		{
  		    			this.handleError({message: mxResources.get('drawingTooLarge')}, mxResources.get('error'), mxUtils.bind(this, function()
  		    			{
  		    				mxUtils.popup(svg);
  		    			}));
  		    		}
  		    	});
  		    	
  		    	if (format == 'svg')
  		    	{
  		        	var bg = this.editor.graph.background;
  		        	
  		        	if (transparent || bg == mxConstants.NONE)
  		        	{
  		        		bg = null;
  		        	}
  		
  		        	// Sets or disables alternate text for foreignObjects. Disabling is needed
  		        	// because PhantomJS seems to ignore switch statements and paint all text.
  		        	var svgRoot = this.editor.graph.getSvg(bg, null, null, null, null, ignoreSelection);
  					
  					if (addShadow)
  					{
  						this.editor.graph.addSvgShadow(svgRoot);
  					}
  					
  					// Embeds the images in the SVG output (async)
  					this.convertImages(svgRoot, mxUtils.bind(this, mxUtils.bind(this, function(svgRoot2)
  					{
  						this.spinner.stop();
  						
  						saveSvg('<?xml version="1.0" encoding="UTF-8"?>\n' +
  							'<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n' +
  							mxUtils.getXml(svgRoot2));
  					})));
  		    	}
  		    	else
  		    	{
  		    		filename = basename + '.svg';
  		    		
  		    		svg = this.getFileData(false, true, null, mxUtils.bind(this, function(svg)
  		    		{
  		    			this.spinner.stop();
  		        		saveSvg(svg);
  		    		}), ignoreSelection);
  		    	}
  		    }
  			else
  			{
  				if (format == 'xmlpng')
  				{
  					filename = basename + '.png';
  				}
  				else if (format == 'jpeg')
  				{
  					filename = basename + '.jpg';
  				}
  				
  				this.saveRequest(filename, format, mxUtils.bind(this, function(newTitle, base64)
  				{
  					try
  					{
  						var prev = this.editor.graph.pageVisible;
  						
  						if (pageVisible != null)
  						{
  							this.editor.graph.pageVisible = pageVisible;
  						}
  						
  						var req = this.createDownloadRequest(newTitle, format, ignoreSelection, base64, transparent);
  						this.editor.graph.pageVisible = prev;
  						
  						return req;
  					}
  					catch (e)
  					{
  						this.handleError(e);
  					}
  				}));
  			}
  		}
  		catch (e)
  		{
  			this.handleError(e);
  		}
  	};
  		
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.createDownloadRequest = function(filename, format, ignoreSelection, base64, transparent)
  	{
  		var bounds = this.editor.graph.getGraphBounds();
  		
  		// Exports only current page for PDF since it does not contain file data, but for
  		// the other formats with XML included we need to send the complete data and use
  		// the from/to URL parameters to specify the page to be exported.
  		var data = this.getFileData(true, null, null, null, ignoreSelection, format != 'xmlpng');
  		var range = '';
  		
  		if (bounds.width * bounds.height > MAX_AREA || data.length > MAX_REQUEST_SIZE)
  		{
  			throw {message: mxResources.get('drawingTooLarge')};
  		}
  		
  		var embed = '0';
         	
         	if (format == 'xmlpng')
         	{
         		embed = '1';
         		format = 'png';
         		
         		// Finds the current page number
         		if (this.pages != null && this.currentPage != null)
         		{
         			for (var i = 0; i < this.pages.length; i++)
         			{
         				if (this.pages[i] == this.currentPage)
         				{
         					range = '&from=' + i;
         					break;
         				}
         			}
         		}
         	}
         	
  		var bg = this.editor.graph.background;
  		
  		if (format == 'png' && transparent)
  		{
  			bg = mxConstants.NONE;
  		}
         	
  		return new mxXmlRequest(EXPORT_URL, 'format=' + format + range +
  			'&bg=' + ((bg != null) ? bg : mxConstants.NONE) +
  			'&base64=' + base64 + '&embedXml=' + embed + '&xml=' +
  			encodeURIComponent(data) + ((filename != null) ?
  			'&filename=' + encodeURIComponent(filename) : ''));
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.setMode = function(mode, remember)
  	{
  		this.mode = mode;
  	};
  
  	/**
  	 * Loads the given file descriptor. The descriptor may define the following properties:
  	 * 
  	 * - url: The url to load the data from (proxy is used if CORS is not enabled)
  	 * - data: The data to be inserted. If both, data and url are defined, then the data
  	 * is preprendended to the data returned from the given URL.
  	 * - format: Currently, only 'csv' is supported as an optional value. Default is XML.
  	 * - update: Optional URL to fetch updates from (POST request with the page XML).
  	 * - interval: Optional interval for fetching updates. Default is 60000 (60 seconds).
  	 */
  	EditorUi.prototype.loadDescriptor = function(desc, success, error)
  	{
  		var hash = window.location.hash;
  		
  		var loadData = mxUtils.bind(this, function(data)
  		{
  			var realData = (desc.data != null) ? desc.data : '';
  			
  			if (data != null && data.length > 0)
  			{
  				if (realData.length > 0)
  				{
  					realData += '\n';
  				}
  				
  				realData += data;
  			}
  
  			var xml = (desc.format != 'csv' && realData.length > 0) ? realData : this.emptyDiagramXml;
  			var tempFile = new LocalFile(this, xml, (urlParams['title'] != null) ?
  					decodeURIComponent(urlParams['title']) : this.defaultFilename, true);
  			tempFile.getHash = function()
  			{
  				return hash;
  			};
  			this.fileLoaded(tempFile);
  			
  			if (desc.format == 'csv')
  			{
  				this.importCsv(realData, mxUtils.bind(this, function(cells)
  				{
  					this.editor.undoManager.clear();
  					this.editor.setModified(false);
  					this.editor.setStatus('');
  				}));
  			}
          	
  			// Installs updates
  			if (desc.update != null)
  			{
  				var interval = (desc.interval != null) ? parseInt(desc.interval) : 60000;
  				var currentThread = null;
  				
  				var doUpdate = mxUtils.bind(this, function()
  				{
  					var page = this.currentPage;
  					
  					mxUtils.post(desc.update, 'xml=' + encodeURIComponent(
  						mxUtils.getXml(this.editor.getGraphXml())),
  						mxUtils.bind(this, function(req)
  					{
  						if (page === this.currentPage)
  						{
  							if (req.getStatus() >= 200 && req.getStatus() <= 300)
  							{
  								var doc = this.updateDiagram(req.getText());
  								schedule();
  							}
  							else
  							{
  								this.handleError({message: mxResources.get('error') + ' ' + req.getStatus()});
  							}
  						}
  					}), mxUtils.bind(this, function(err)
  					{
  						this.handleError(err);
  					}));
  				});
  				
  				var schedule = mxUtils.bind(this, function()
  				{
  					window.clearTimeout(currentThread);
  					currentThread = window.setTimeout(doUpdate, interval);
  				});
  				
  				this.editor.addListener('pageSelected', mxUtils.bind(this, function()
  				{
  					schedule();
  					doUpdate();
  				}));
  				
  				schedule();
  				doUpdate();
  			}
  			
      		if (success != null)
      		{
      			success();
      		}
  		});
  		
  		if (desc.url != null && desc.url.length > 0)
  		{
              var realUrl = desc.url;
              
              if ((/^https?:\/\//.test(realUrl)) && !this.isCorsEnabledForUrl(realUrl))
              {
                  realUrl = PROXY_URL + '?url=' + encodeURIComponent(desc.url);
              }
  
              // LATER: Remove cache-control header
              this.loadUrl(realUrl, mxUtils.bind(this, function(data)
              {
              	loadData(data);
              }), mxUtils.bind(this, function(err)
              {
              	if (error != null)
              	{
              		error(err)
              	}
              }));
  		}
  		else
  		{
  			loadData('');
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.updateDiagram = function(xml)
  	{
  		var doc = null;
  		
  		function createOverlay(desc)
  		{
  			var overlay = new mxCellOverlay(desc.image || graph.warningImage,
  				desc.tooltip, desc.align, desc.valign, desc.offset);
  
  			// Installs a handler for clicks on the overlay
  			overlay.addListener(mxEvent.CLICK, function(sender, evt)
  			{
  				editorUi.alert(desc.tooltip);
  			});
  			
  			return overlay;
  		};
  		
  		if (xml != null && xml.length > 0)
  		{
  			doc = mxUtils.parseXml(xml);
  			var node = (doc != null) ? doc.documentElement : null;
  			
  			if (node != null && node.nodeName == 'updates')
  			{
  				var graph = this.editor.graph;
  				var model = graph.getModel();
  				model.beginUpdate();
  				var fit = null;
  
  				try
  				{
  					node = node.firstChild;
  					
  					while (node != null)
  					{
  						if (node.nodeName == 'update')
  						{
  							// Resolves the cell ID
  							var cell = model.getCell(node.getAttribute('id'));
  							
  							if (cell != null)
  							{
  								// Changes the value
  								try
  								{
  									var value = node.getAttribute('value');
  									
  									if (value != null)
  									{
  										var valueNode = mxUtils.parseXml(value).documentElement;
  
  										if (valueNode != null)
  										{
  											if (valueNode.getAttribute('replace-value') == '1')
  											{
  												model.setValue(cell, valueNode);
  											}
  											else
  											{
  												var attrs = valueNode.attributes;
  												
  												for (var j = 0; j < attrs.length; j++)
  												{
  													graph.setAttributeForCell(cell, attrs[j].nodeName,
  														(attrs[j].nodeValue.length > 0) ? attrs[j].nodeValue : null);
  												}
  											}
  										}
  									}
  								}
  								catch (e)
  								{
  									if (window.console != null)
  									{
  										console.log('Error in value for ' + cell.id + ': ' + e);
  									}
  								}
  								
  								// Changes the style
  								try
  								{
  									var style = node.getAttribute('style');
  									
  									if (style != null)
  									{
  										graph.model.setStyle(cell, style);
  									}
  								}
  								catch (e)
  								{
  									if (window.console != null)
  									{
  										console.log('Error in style for ' + cell.id + ': ' + e);
  									}
  								}
  								
  								// Adds or removes an overlay icon
  								try
  								{
  									var icon = node.getAttribute('icon');
  									
  									if (icon != null)
  									{
  										var desc = (icon.length > 0) ? JSON.parse(icon) : null;
  										
  										if (desc == null || !desc.append)
  										{
  											graph.removeCellOverlays(cell);
  										}
  										
  										if (desc != null)
  										{
  											graph.addCellOverlay(cell, createOverlay(desc));
  										}
  									}
  								}
  								catch (e)
  								{
  									if (window.console != null)
  									{
  										console.log('Error in icon for ' + cell.id + ': ' + e);
  									}
  								}
  								
  								// Replaces the geometry
  								try
  								{
  									var geo = node.getAttribute('geometry');
  									
  									if (geo != null)
  									{
  										geo = JSON.parse(geo);
  										var curr = graph.getCellGeometry(cell);
  										
  										if (curr != null)
  										{
  											curr = curr.clone();
  											
  											// Partially overwrites geometry
  											for (key in geo)
  											{
  												var val = parseFloat(geo[key]);
  												
  												if (key == 'dx')
  												{
  													curr.x += val; 
  												}
  												else if (key == 'dy')
  												{
  													curr.y += val;
  												}
  												else if (key == 'dw')
  												{
  													curr.width += val;
  												}
  												else if (key == 'dh')
  												{
  													curr.height += val;
  												}
  												else
  												{
  													curr[key] = parseFloat(geo[key]);
  												}
  											}
  											
  											graph.model.setGeometry(cell, curr);
  										}
  									}
  								}
  								catch (e)
  								{
  									if (window.console != null)
  									{
  										console.log('Error in icon for ' + cell.id + ': ' + e);
  									}
  								}
  							} // if cell != null
  						} // if node.nodeName == 'update
  						else if (node.nodeName == 'model')
  						{
  							// Finds first child element
  							var dataNode = node.firstChild;
  							
  							while (dataNode != null && dataNode.nodeType != mxConstants.NODETYPE_ELEMENT)
  							{
  								dataNode = dataNode.nextSibling;
  							}
  							
  							if (dataNode != null)
  							{
  								var dec = new mxCodec(node.firstChild);
  								dec.decode(dataNode, model);
  							}
  						}
  						else if (node.nodeName == 'view')
  						{
  							if (node.hasAttribute('scale'))
  							{
  								graph.view.scale = parseFloat(node.getAttribute('scale'));
  							}
  							
  							if (node.hasAttribute('dx') || node.hasAttribute('dy'))
  							{
  								graph.view.translate = new mxPoint(parseFloat(node.getAttribute('dx') || 0),
  									parseFloat(node.getAttribute('dy') || 0));
  							}
  						}
  						else if (node.nodeName == 'fit')
  						{
  							if (node.hasAttribute('max-scale'))
  							{
  								fit = parseFloat(node.getAttribute('max-scale'));
  							}
  							else
  							{
  								fit = 1;
  							}
  						}
  						
  						node = node.nextSibling;
  					} // end of while
  				}
  				finally
  				{
  					model.endUpdate();
  				}
  				
  				if (fit != null && this.chromelessResize)
  				{
  					this.chromelessResize(true, fit);
  				}
  			}
  		}
  		
  		return doc;
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.fileLoaded = function(file)
  	{
  		var result = false;
  		this.hideDialog();
  		var oldFile = this.getCurrentFile();
  		this.setCurrentFile(null);
  	
  		if (oldFile != null)
  		{
  			oldFile.removeListener(this.descriptorChangedListener);
  			oldFile.close();
  		}
  		
  		this.editor.graph.model.clear();
  		this.editor.undoManager.clear();
  	
  		var noFile = mxUtils.bind(this, function()
  		{
  			this.setGraphEnabled(false);
  			this.setCurrentFile(null);
  			
  			// Keeps initial title if no file existed before
  			if (oldFile != null)
  			{
  				this.updateDocumentTitle();
  			}
  			
  			// File might have been loaded halfway
  			this.editor.graph.model.clear();
  			this.editor.undoManager.clear();
  			this.setBackgroundImage(null);
  					
  			// Avoids empty hash with no value
  			if (window.location.hash != null && window.location.hash.length > 0)
  			{
  				window.location.hash = '';
  			}
  			
  			if (this.fname != null)
  			{
  				this.fnameWrapper.style.display = 'none';
  				this.fname.innerHTML = '';
  				this.fname.setAttribute('title', mxResources.get('rename'));
  			}
  
  			this.editor.setStatus('');
  			this.updateUi();
  			this.showSplash();
  		});
  	
  		if (file != null)
  		{
  			try
  			{
  				// Order is significant, current file needed for correct
  				// file format for initial save after starting realtime
  				this.setCurrentFile(file);
  				file.addListener('descriptorChanged', this.descriptorChangedListener);
  				file.addListener('contentChanged', this.descriptorChangedListener);
  				file.open();
  				
  				// DescriptorChanged updates the enabled state of the graph
  				this.setGraphEnabled(true);
  				this.setMode(file.getMode());
  				this.editor.undoManager.clear();
  				this.descriptorChanged();
  				this.updateUi();
  				
  				// Realtime files have a valid status message
  				if (file.realtime == null)
  				{
  					if (!file.isEditable())
  					{
  						this.editor.setStatus('<span class="geStatusAlert" style="margin-left:8px;">' +
  							mxUtils.htmlEntities(mxResources.get('readOnly')) + '</span>');
  					}
  					else
  					{
  						this.editor.setStatus('');
  					}
  				}
  	
  				if (!this.editor.isChromelessView() || this.editor.editable)
  				{
  					this.editor.graph.selectUnlockedLayer();
  					this.showLayersDialog();
  					this.restoreLibraries();
  					
  					// Workaround for no initial focus in FF
  					if (window.self !== window.top)
  					{
  						window.focus();
  					}
  				}
  				else if (this.editor.graph.isLightboxView())
  				{
  					this.lightboxFit();
  				}
  	
  				if (this.chromelessResize)
  				{
  					this.chromelessResize();
  				}
  				
  				this.editor.fireEvent(new mxEventObject('fileLoaded'));
  				result = true;
  
  				if (!this.isOffline() && file.getMode() != null)
  				{
  					this.logEvent({category: 'File', action: 'open', label: file.getMode()})
  				}
  				
  				if (this.mode == file.getMode() && file.getMode() != App.MODE_DEVICE && file.getMode() != null)
  				{
  					try
  					{
  						this.addRecent({id: file.getHash(), title: file.getTitle(), mode: file.getMode()});
  					}
  					catch (e)
  					{
  						// ignore
  					}
  				}
  				
  				try
  				{
  					mxSettings.setOpenCounter(mxSettings.getOpenCounter() + 1);
  					mxSettings.save();
  				}
  				catch (e)
  				{
  					// ignore
  				}
  			}
  			catch (e)
  			{
  				// Makes sure the file does not save the invalid UI model and overwrites anything important
  				if (window.console != null)
  				{
  					console.log('error in fileLoaded:', file, e);
  				}
  				
  				if (EditorUi.enableLogging && !this.isOffline())
  				{
  			        	try
  			        	{
  						var img = new Image();
  						var logDomain = window.DRAWIO_LOG_URL != null ? window.DRAWIO_LOG_URL : '';
  				    		img.src = logDomain + '/log?v=' + encodeURIComponent(EditorUi.VERSION) +
  				    			'&msg=errorInFileLoaded:url:' + encodeURIComponent(window.location.href) +
  			    				((e != null && e.message != null) ? ':err:' + encodeURIComponent(e.message) : '') +
  			    				((e != null && e.stack != null) ? '&stack=' + encodeURIComponent(e.stack) : '');
  			        	}
  			        	catch (e)
  			        	{
  			        		// ignore
  			        	}
  				}
  				
  				// Asynchronous handling of errors
  				this.handleError(e, mxResources.get('errorLoadingFile'), mxUtils.bind(this, function()
  				{
  					// Removes URL parameter and reloads the page
  					if (urlParams['url'] != null && this.spinner.spin(document.body, mxResources.get('reconnecting')))
  					{
  						window.location.search = this.getSearch(['url']);
  					}
  					else if (oldFile != null)
  					{
  						// Workaround for close realtime model is to reload the file from scratch
  						if (oldFile.constructor == DriveFile)
  						{
  							this.loadFile(oldFile.getHash());
  						}
  						else
  						{
  							this.fileLoaded(oldFile);
  						}
  					}
  					else
  					{
  						noFile();
  					}
  				}));
  			}
  		}
  		else
  		{
  			noFile();
  		}
  		
  		return result;
  	};
  	
  	/**
  	 * Adds empty implementation
  	 */
  	EditorUi.prototype.descriptorChanged = function()
  	{
  		// empty
  	};
  	
  	/**
  	 * Updates action states depending on the selection.
  	 */
  	EditorUi.prototype.logEvent = function(data)
  	{
  		if (EditorUi.enableLogging)
  		{
  			try
  			{
  				var logDomain = window.DRAWIO_LOG_URL != null ? window.DRAWIO_LOG_URL : '';
  				var img = new Image();
  				img.src = logDomain + '/images/1x1.png?' +
  						'v=' + encodeURIComponent(EditorUi.VERSION) +
  						((data != null) ? '&data=' + encodeURIComponent(JSON.stringify(data)) : '');
  	    	}
  			catch (e)
  			{
  	    			// ignore
  			}
  		}
  	};
  
  	/**
  	 * Updates action states depending on the selection.
  	 */
  	EditorUi.prototype.restoreLibraries = function()
  	{
  		// hook for subclassers
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.saveLibrary = function(name, images, file, mode, noSpin, noReload, fn)
  	{
  		// hook for subclassers
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.isScratchpadEnabled = function()
  	{
  		return isLocalStorage || mxClient.IS_CHROMEAPP;
  	};
  
  	/**
  	 * Shows or hides the scratchpad library.
  	 */
  	EditorUi.prototype.toggleScratchpad = function()
  	{
  		if (this.isScratchpadEnabled())
  		{
  			if (this.scratchpad == null)
  			{
  				this.getLocalData('.scratchpad', mxUtils.bind(this, function(xml)
  				{
  					if (xml == null)
  					{
  						xml = this.emptyLibraryXml;
  					}
  					
  					this.loadLibrary(new StorageLibrary(this, xml, '.scratchpad'));
  				}));
  			}
  			else
  			{
  				this.closeLibrary(this.scratchpad);
  			}
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.createLibraryDataFromImages = function(images)
  	{
  		var doc = mxUtils.createXmlDocument();
  		var library = doc.createElement('mxlibrary');
  		mxUtils.setTextContent(library, JSON.stringify(images));
  		doc.appendChild(library);
  		
  		return mxUtils.getXml(doc);
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.closeLibrary = function(file)
  	{
  		if (file != null)
  		{
  			this.removeLibrarySidebar(file.getHash());
  			
  			if (file.constructor != LocalLibrary)
  			{
  				mxSettings.removeCustomLibrary(file.getHash());
  			}
  			
  			if (file.title == '.scratchpad')
  			{
  				this.scratchpad = null;
  			}
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.removeLibrarySidebar = function(id)
  	{
  		var elts = this.sidebar.palettes[id];
  		
  		if (elts != null)
  		{
  			for (var i = 0; i < elts.length; i++)
  			{
  				elts[i].parentNode.removeChild(elts[i]);
  			}
  			
  			delete this.sidebar.palettes[id];
  		}
  	};
  	
  	/**
  	 * Changes the position of the library in the sidebar 
  	 */
  	EditorUi.prototype.repositionLibrary = function(nextChild) 
  	{
  	    var c = this.sidebar.container;
  	    
  	    if (nextChild == null)
  	    {
  	    	var elts = this.sidebar.palettes['L.scratchpad'];
  	    	
  	    	if (elts == null)
  	    	{
  	    		elts = this.sidebar.palettes['search'];
  	    	}
  	    	
  	    	if (elts != null)
  	    	{
  	    		nextChild = elts[elts.length - 1].nextSibling;
  	    	}
  	    }
  	    
  		nextChild = (nextChild != null) ? nextChild : c.firstChild.nextSibling.nextSibling;
  		
  		var content = c.lastChild;
  		var title = content.previousSibling;
  		
  	    c.insertBefore(content, nextChild);
  	    c.insertBefore(title, content);
  	}
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.loadLibrary = function(file)
  	{
  		var doc = mxUtils.parseXml(file.getData());
  		
  		if (doc.documentElement.nodeName == 'mxlibrary')
  		{
  			var images = JSON.parse(mxUtils.getTextContent(doc.documentElement));
  			this.libraryLoaded(file, images, doc.documentElement.getAttribute('title'));
  		}
  		else
  		{
  			throw {message: mxResources.get('notALibraryFile')};
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.getLibraryStorageHint = function(file)
  	{
  		return '';
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.libraryLoaded = function(file, images, optionalTitle)
  	{
  		if (this.sidebar == null)
  		{
  			return;
  		}
  		
  		if (file.constructor != LocalLibrary)
  		{
  			mxSettings.addCustomLibrary(file.getHash());
  		}
  	
  		if (file.title == '.scratchpad')
  		{
  			this.scratchpad = file;
  		}
  		
  		var elts = this.sidebar.palettes[file.getHash()];
  		var nextSibling = (elts != null) ? elts[elts.length - 1].nextSibling : null;
  	
  		// Removes existing sidebar entry for this library
  		this.removeLibrarySidebar(file.getHash());
  		var dropTarget = null;
  		
  		var addImages = mxUtils.bind(this, function(imgs, content)
  		{
  			if (imgs.length == 0 && file.isEditable())
  			{
  				if (dropTarget == null)
  				{
  					dropTarget = document.createElement('div');
  					mxUtils.setPrefixedStyle(dropTarget.style, 'borderRadius', '6px');
  					dropTarget.style.border = '3px dotted lightGray';
  					dropTarget.style.textAlign = 'center';
  					dropTarget.style.padding = '8px';
  					dropTarget.style.color = '#B3B3B3';
  					mxUtils.write(dropTarget, mxResources.get('dragElementsHere'));
  				}
  				
  				content.appendChild(dropTarget);
  			}
  			else
  			{
  				for (var i = 0; i < imgs.length; i++)
  				{
  					var img = imgs[i];
  					var data = img.data;
  		
  					if (data != null)
  					{
  						data = this.convertDataUri(data);
  						var s = 'shape=image;verticalLabelPosition=bottom;verticalAlign=top;imageAspect=0;';
  						
  						if (img.aspect == 'fixed')
  						{
  							s += 'aspect=fixed;'
  						}
  						
  						content.appendChild(this.sidebar.createVertexTemplate(s + 'image=' +
  							data, img.w, img.h, '', img.title || '', false, false, true));
  					}
  					else if (img.xml != null)
  					{
  						var cells = this.stringToCells(this.editor.graph.decompress(img.xml));
  						
  						if (cells.length > 0)
  						{
  							content.appendChild(this.sidebar.createVertexTemplateFromCells(
  								cells, img.w, img.h, img.title || '', true, false, true));
  						}
  					}
  				}
  			}
  		});
  
  		// Adds entries to search index
  		// KNOWN: Existing entries are not replaced after edit of custom library
  		if (this.sidebar != null && images != null)
  		{
  			for (var i = 0; i < images.length; i++)
  			{
  				(mxUtils.bind(this, function(img)
  				{
  					var data = img.data;
  					
  					if (data != null && img.title != null)
  					{
  						this.sidebar.addEntry(img.title, mxUtils.bind(this, function()
  						{
  							data = this.convertDataUri(data);
  							var s = 'shape=image;verticalLabelPosition=bottom;verticalAlign=top;imageAspect=0;';
  							
  							if (img.aspect == 'fixed')
  							{
  								s += 'aspect=fixed;'
  							}
  							
  							return this.sidebar.createVertexTemplate(s + 'image=' +
  								data, img.w, img.h, '', img.title || '', false, false, true)
  						}));
  					}
  					else if (img.xml != null && img.title != null)
  					{
  						this.sidebar.addEntry(img.title, mxUtils.bind(this, function()
  						{
  							var cells = this.stringToCells(this.editor.graph.decompress(img.xml));
  	
  							return this.sidebar.createVertexTemplateFromCells(
  								cells, img.w, img.h, img.title || '', true, false, true);
  						}));
  					}
  				}))(images[i]);
  			}
  		}
  		
  		// Adds new sidebar entry for this library
  		var tmp = (optionalTitle != null && optionalTitle.length > 0) ? optionalTitle : file.getTitle();
  		var contentDiv = this.sidebar.addPalette(file.getHash(), tmp, true, mxUtils.bind(this, function(content)
  		{
  			addImages(images, content);
  	    }));
  	
  		this.repositionLibrary(nextSibling);
  		
  		// Adds tooltip for backend
  		var title = contentDiv.parentNode.previousSibling;
  	    var tip = title.getAttribute('title');
  	    
  	    if (tip != null && tip.length > 0 && file.title != '.scratchpad')
  	    {
  	    	title.setAttribute('title', this.getLibraryStorageHint(file) + '\n' + tip);
  	    }
  	    
  	    var buttons = document.createElement('div');
  	    buttons.style.position = 'absolute';
  	    buttons.style.right = '0px';
  	    buttons.style.top = '0px';
  	    buttons.style.padding = '8px'
  	    
  	    // Workaround for CSS error in IE8 (standards and quirks)
  	    if (!mxClient.IS_QUIRKS && document.documentMode != 8)
  	    {
  	    		buttons.style.backgroundColor = 'inherit';
  	    }
  	    
  	    title.style.position = 'relative';
  	    
  	    var btnWidth = 18;
  		var btn = document.createElement('img');
  		btn.setAttribute('src', Dialog.prototype.closeImage);
  		btn.setAttribute('title', mxResources.get('close'));
  		btn.setAttribute('valign', 'absmiddle');
  		btn.setAttribute('border', '0');
  		btn.style.margin = '0 3px';
  		
  		var saveBtn = null;
  		
  	    if (file.title != '.scratchpad' || this.closableScratchpad)
  	    {
  			buttons.appendChild(btn);
  			
  			mxEvent.addListener(btn, 'click', mxUtils.bind(this, function(evt)
  			{
  				// Workaround for close after any button click in IE8/quirks
  				if (!mxEvent.isConsumed(evt))
  				{
  					var fn = mxUtils.bind(this, function()
  					{
  						this.closeLibrary(file);
  					});
  					
  					if (saveBtn != null)
  					{
  						this.confirm(mxResources.get('allChangesLost'), null, fn,
  							mxResources.get('cancel'), mxResources.get('discardChanges'));
  					}
  					else
  					{
  						fn();
  					}
  			
  					mxEvent.consume(evt);
  				}
  			}));
  	    }
  		
  		if (file.isEditable())
  		{
  			var graph = this.editor.graph;
  			var spinBtn = null;
  			
  			var editLibrary = mxUtils.bind(this, function(evt)
  			{
  				this.showLibraryDialog(file.getTitle(), contentDiv, images, file, file.getMode());
  				mxEvent.consume(evt);
  			});
  			
  			var saveLibrary = mxUtils.bind(this, function(evt)
  			{
  				file.setModified(true);
  				
  				if (file.isAutosave())
  				{
  					if (spinBtn != null && spinBtn.parentNode != null)
  					{
  						spinBtn.parentNode.removeChild(spinBtn);
  					}
  					
  					spinBtn = btn.cloneNode(false);
  					spinBtn.setAttribute('src', Editor.spinImage);
  					spinBtn.setAttribute('title', mxResources.get('saving'));
  					spinBtn.style.cursor = 'default';
  					spinBtn.style.marginRight = '2px';
  					spinBtn.style.marginTop = '-2px';
  					buttons.insertBefore(spinBtn, buttons.firstChild);
  					title.style.paddingRight = (buttons.childNodes.length * btnWidth) + 'px';
  					
  					this.saveLibrary(file.getTitle(), images, file, file.getMode(), true, true, function()
  					{
  						if (spinBtn != null && spinBtn.parentNode != null)
  						{
  							spinBtn.parentNode.removeChild(spinBtn);
  							title.style.paddingRight = (buttons.childNodes.length * btnWidth) + 'px';
  						}
  					});
  				}
  				else if (saveBtn == null)
  				{
  					saveBtn = btn.cloneNode(false);
  					saveBtn.setAttribute('src', IMAGE_PATH + '/download.png');
  					saveBtn.setAttribute('title', mxResources.get('save'));
  					buttons.insertBefore(saveBtn, buttons.firstChild);
  					
  					mxEvent.addListener(saveBtn, 'click', mxUtils.bind(this, function(evt)
  					{
  						this.saveLibrary(file.getTitle(), images, file, file.getMode(),
  							file.constructor == LocalLibrary, true, function()
  							{
  								if (saveBtn != null && !file.isModified())
  								{
  									title.style.paddingRight = (buttons.childNodes.length * btnWidth) + 'px';
  									saveBtn.parentNode.removeChild(saveBtn);
  									saveBtn = null;
  								}
  							});
  						
  						mxEvent.consume(evt);
  					}));
  					
  					title.style.paddingRight = (buttons.childNodes.length * btnWidth) + 'px';
  				}
  			});
  			
  			var addCells = mxUtils.bind(this, function(cells, bounds, evt, title)
  			{
  				cells = graph.cloneCells(mxUtils.sortCells(graph.model.getTopmostCells(cells)));
  	
  				// Translates cells to origin
  				for (var i = 0; i < cells.length; i++)
  				{
  					var geo = graph.getCellGeometry(cells[i]);
  					
  					if (geo != null)
  					{
  						geo.translate(-bounds.x, -bounds.y);
  					}
  				}
  	
  				contentDiv.appendChild(this.sidebar.createVertexTemplateFromCells(
  					cells, bounds.width, bounds.height, title || '', true, false, false));
  	
  				var xml = this.editor.graph.compress(mxUtils.getXml(this.editor.graph.encodeCells(cells)));
  				var entry = {xml: xml, w: bounds.width, h: bounds.height};
  				
  				if (title != null)
  				{
  					entry.title = title;
  				}
  				
  				images.push(entry);
  				saveLibrary(evt);
  				
  				if (dropTarget != null && dropTarget.parentNode != null && images.length > 0)
  				{
  					dropTarget.parentNode.removeChild(dropTarget);
  					dropTarget = null;
  				}
  			});
  		
  			var addSelection = mxUtils.bind(this, function(evt)
  			{
  				if (!graph.isSelectionEmpty())
  				{
  					var cells = graph.getSelectionCells();
  					var bounds = graph.view.getBounds(cells);
  					
  					var s = graph.view.scale;
  					
  					bounds.x /= s;
  					bounds.y /= s;
  					bounds.width /= s;
  					bounds.height /= s;
  					
  					bounds.x -= graph.view.translate.x;
  					bounds.y -= graph.view.translate.y;
  					
  					addCells(cells, bounds);
  				}
  				else if (graph.getRubberband().isActive())
  				{
  					graph.getRubberband().execute(evt);
  					graph.getRubberband().reset();
  				}
  				else
  				{
  					this.showError(mxResources.get('error'), mxResources.get('nothingIsSelected'), mxResources.get('ok'));
  				}
  				
  				mxEvent.consume(evt);
  			});
  			
  			// Defines inactive border state
  			contentDiv.style.border = '3px solid transparent';
  			
  			// Adds drop handler from graph
  			mxEvent.addGestureListeners(contentDiv, function(){}, mxUtils.bind(this, function(evt)
  			{
  				if (graph.isMouseDown && graph.panningManager != null && graph.graphHandler.shape != null)
  				{
  					graph.graphHandler.shape.node.style.visibility = 'hidden';
  					
  					if (dropTarget != null)
  					{
  						dropTarget.style.border = '3px dotted rgb(254, 137, 12)';
  					}
  					else
  					{
  						contentDiv.style.border = '3px dotted rgb(254, 137, 12)';
  					}
  					
  					contentDiv.style.cursor = 'copy';
  					graph.panningManager.stop();
  					graph.autoScroll = false;
  					
  					if (graph.graphHandler.guide != null)
  					{
  						graph.graphHandler.guide.setVisible(false);
  					}
  					
  					if (graph.graphHandler.hint != null)
  					{
  						graph.graphHandler.hint.style.visibility = 'hidden';	
  					}
  					
  					mxEvent.consume(evt);
  				}
  			}), mxUtils.bind(this, function(evt)
  			{
  				if (graph.isMouseDown && graph.panningManager != null && graph.graphHandler != null)
  				{
  					contentDiv.style.border = '3px solid transparent';
  					
  					if (dropTarget != null)
  					{
  						dropTarget.style.border = '3px dotted lightGray';
  					}
  					
  					contentDiv.style.cursor = 'default';
  					this.sidebar.showTooltips = true;
  					graph.panningManager.stop();
  					graph.graphHandler.reset();
  					graph.isMouseDown = false;
  					graph.autoScroll = true;
  					addSelection(evt);
  					mxEvent.consume(evt);
  				}
  			}));
  			
  			// Handles mouse leaving the library and restoring move
  			mxEvent.addListener(contentDiv, 'mouseleave', mxUtils.bind(this, function(evt)
  			{
  				if (graph.isMouseDown && graph.graphHandler.shape != null)
  				{
  					graph.graphHandler.shape.node.style.visibility = 'visible';
  					contentDiv.style.border = '3px solid transparent';
  					contentDiv.style.cursor = '';
  					graph.autoScroll = true;
  					
  					if (graph.graphHandler.guide != null)
  					{
  						graph.graphHandler.guide.setVisible(true);
  					}
  					
  					if (graph.graphHandler.hint != null)
  					{
  						graph.graphHandler.hint.style.visibility = 'visible';	
  					}
  					
  					if (dropTarget != null)
  					{
  						dropTarget.style.border = '3px dotted lightGray';
  					}
  				}
  			}));
  			
  			// Adds drop handler from filesystem
  			if (Graph.fileSupport)
  			{
  				mxEvent.addListener(contentDiv, 'dragover', mxUtils.bind(this, function(evt)
  				{
  					if (dropTarget != null)
  					{
  						dropTarget.style.border = '3px dotted rgb(254, 137, 12)';
  					}
  					else
  					{
  						contentDiv.style.border = '3px dotted rgb(254, 137, 12)';
  					}
  					
  					evt.dataTransfer.dropEffect = 'copy';
  					contentDiv.style.cursor = 'copy';
  					this.sidebar.hideTooltip();
  					evt.stopPropagation();
  					evt.preventDefault();
  				}));
  				
  				mxEvent.addListener(contentDiv, 'drop', mxUtils.bind(this, function(evt)
  				{
  					contentDiv.style.border = '3px solid transparent';
  					contentDiv.style.cursor = '';
  					
  					if (dropTarget != null)
  					{
  						dropTarget.style.border = '3px dotted lightGray';
  					}
  					
  				    if (evt.dataTransfer.files.length > 0)
  				    {	
  				    	this.importFiles(evt.dataTransfer.files, 0, 0, this.maxImageSize, mxUtils.bind(this, function(data, mimeType, x, y, w, h, img, doneFn, file)
  				    	{
  							if (data != null && mimeType.substring(0, 6) == 'image/')
  							{
  								var style = 'shape=image;verticalLabelPosition=bottom;verticalAlign=top;aspect=fixed;image=' +
  									this.convertDataUri(data);
  								var cells = [new mxCell('', new mxGeometry(0, 0, w, h), style)];
  								cells[0].vertex = true;
  	
  								addCells(cells, new mxRectangle(0, 0, w, h), evt, (mxEvent.isAltDown(evt)) ? null : img.substring(0, img.lastIndexOf('.')).replace(/_/g, ' '));
  
  								if (dropTarget != null && dropTarget.parentNode != null && images.length > 0)
  								{
  									dropTarget.parentNode.removeChild(dropTarget);
  									dropTarget = null;
  								}
  							}
  							else
  							{
  								var done = false;
  								
  								var doImport = mxUtils.bind(this, function(theData, theMimeType)
  								{
  									if (theData != null && theMimeType == 'text/xml')
  									{
  										var doc = mxUtils.parseXml(theData);
  										
  										if (doc.documentElement.nodeName == 'mxlibrary')
  										{
  											try
  											{
  												var temp = JSON.parse(mxUtils.getTextContent(doc.documentElement));
  												addImages(temp, contentDiv);
  												images = images.concat(temp);
  												saveLibrary(evt);
  												this.spinner.stop();
  												done = true;
  											}
  											catch (e)
  											{
  												// ignore
  											}
  										}
  										else if (doc.documentElement.nodeName == 'mxfile')
  										{
  											try
  											{
  												var pages = doc.documentElement.getElementsByTagName('diagram');
  												
  												for (var i = 0; i < pages.length; i++)
  												{
  													var temp = mxUtils.getTextContent(pages[i]);
  													var cells = this.stringToCells(this.editor.graph.decompress(temp));
  													var size = this.editor.graph.getBoundingBoxFromGeometry(cells);
  													addCells(cells, new mxRectangle(0, 0, size.width, size.height), evt);
  												}
  												
  												done = true;
  											}
  											catch (e)
  											{
  												if (window.console != null)
  												{
  													console.log('error in drop handler:', e);
  												}
  											}
  										}
  									}
  									
  									if (!done)
  									{
  										this.spinner.stop();
  										this.handleError({message: mxResources.get('errorLoadingFile')})
  									}
  
  									if (dropTarget != null && dropTarget.parentNode != null && images.length > 0)
  									{
  										dropTarget.parentNode.removeChild(dropTarget);
  										dropTarget = null;
  									}
  								});
  								
  								if (file != null && img != null && ((/(\.vsdx?)($|\?)/i.test(img)) || /(\.vssx?)($|\?)/i.test(img)))
  								{
  									this.importVisio(file, function(xml)
  									{
  										doImport(xml, 'text/xml');
  									}, null, img);
  								}
  								else if (!this.isOffline() && new XMLHttpRequest().upload && this.isRemoteFileFormat(data, img) && file != null)
  								{
  									this.parseFile(file, mxUtils.bind(this, function(xhr)
  									{
  										if (xhr.readyState == 4)
  										{
  											this.spinner.stop();
  											
  											if (xhr.status >= 200 && xhr.status <= 299)
  											{
  												doImport(xhr.responseText, 'text/xml');
  											}
  											else
  											{
  												this.handleError({message: mxResources.get((xhr.status == 413) ?
  				            						'drawingTooLarge' : 'invalidOrMissingFile')},
  				            						mxResources.get('errorLoadingFile'));
  											}
  										}
  									}));
  								}
  								else
  								{
  									doImport(data, mimeType);
  								}
  							}
  				    	}));
  					}
  				    
  				    evt.stopPropagation();
  				    evt.preventDefault();
  				}));
  	
  				mxEvent.addListener(contentDiv, 'dragleave', function(evt)
  				{
  					if (dropTarget != null)
  					{
  						dropTarget.style.border = '3px dotted lightGray';
  					}
  					else
  					{
  						contentDiv.style.border = '3px solid transparent';
  						contentDiv.style.cursor = '';
  					}
  	
  					evt.stopPropagation();
  					evt.preventDefault();
  				});
  			}
  	
  			btn = btn.cloneNode(false);
  			btn.setAttribute('src', Editor.editImage);
  			btn.setAttribute('title', mxResources.get('edit'));
  			buttons.insertBefore(btn, buttons.firstChild);
  			
  			mxEvent.addListener(btn, 'click', editLibrary);
  			mxEvent.addListener(contentDiv, 'dblclick', function(evt)
  			{
  				if (mxEvent.getSource(evt) == contentDiv)
  				{
  					editLibrary(evt);
  				}
  			});
  			
  			var btn2 = btn.cloneNode(false);
  			btn2.setAttribute('src', Editor.plusImage);
  			btn2.setAttribute('title', mxResources.get('add'));
  			buttons.insertBefore(btn2, buttons.firstChild);
  			mxEvent.addListener(btn2, 'click', addSelection);
  			
  			if (!this.isOffline() && file.title == '.scratchpad' && EditorUi.scratchpadHelpLink != null)
  			{
  				var link = document.createElement('span');
  				link.setAttribute('title', mxResources.get('help'));
  				link.style.cssText = 'color:#a3a3a3;text-decoration:none;margin-right:2px;';
  				mxUtils.write(link, '?');
  				
  				mxEvent.addGestureListeners(link, mxUtils.bind(this, function(evt)
  				{
  					this.openLink(EditorUi.scratchpadHelpLink);
  					mxEvent.consume(evt);
  				}));
  				
  				buttons.insertBefore(link, buttons.firstChild);
  			}
  		}
  		
  		title.appendChild(buttons);
  		title.style.paddingRight = (buttons.childNodes.length * btnWidth) + 'px';
  	};
  
  	/**
  	 * EditorUi Overrides
  	 */
      if (urlParams['offline'] == '1' || EditorUi.isElectronApp)
      {
  		EditorUi.prototype.footerHeight = 4;
      }
      else
      {
  		if (urlParams['savesidebar'] == '1')
  		{
      		Sidebar.prototype.thumbWidth = 64;
      		Sidebar.prototype.thumbHeight = 64;
  		}
  
  		EditorUi.prototype.footerHeight = (screen.width >= 760 && screen.height >= 240) ? 46 : 0;
  		
  		// Fetches footer from page
  		EditorUi.prototype.createFooter = function()
  		{
  			var footer = document.getElementById('geFooter');
  			
  			if (footer != null)
  			{
  				footer.style.visibility = 'visible';
  				
  				// Adds button to hide the footer
  				var img = document.createElement('img');
  				img.setAttribute('border', '0');
  				img.setAttribute('src', Dialog.prototype.closeImage);
  				img.setAttribute('title', mxResources.get('hide'));
  				footer.appendChild(img)
  
  				if (mxClient.IS_QUIRKS)
  				{
  					img.style.position = 'relative';
  					img.style.styleFloat = 'right';
  					img.style.top = '-30px';
  					img.style.left = '164px';
  					img.style.cursor = 'pointer';
  				}
  				
  				mxEvent.addListener(img, 'click', mxUtils.bind(this, function()
  				{
  					this.hideFooter();
  				}));
  			}
  
  			return footer;
  		};
      }
      
      EditorUi.initTheme = function()
      {
      	if (uiTheme == 'atlas')
      	{
      		mxClient.link('stylesheet', STYLE_PATH + '/atlas.css');
  
      		if (typeof Toolbar !== 'undefined')
      		{
      			Toolbar.prototype.unselectedBackground = (mxClient.IS_QUIRKS) ? 'none' : 'linear-gradient(rgb(255, 255, 255) 0px, rgb(242, 242, 242) 100%)';
      			Toolbar.prototype.selectedBackground = 'rgb(242, 242, 242)';
      		}
      		
      		Editor.prototype.initialTopSpacing = 3;
      		EditorUi.prototype.menubarHeight = 41;
      		EditorUi.prototype.toolbarHeight = 38;
      		EditorUi.prototype.hsplitPosition = 188;
      		Sidebar.prototype.thumbWidth = 46;
      		Sidebar.prototype.thumbHeight = 46;
      		Sidebar.prototype.thumbPadding = (document.documentMode >= 5) ? 0 : 1;
      		Sidebar.prototype.thumbBorder = 2;
      	}
      	else if (uiTheme == 'dark')
      	{
      		mxClient.link('stylesheet', STYLE_PATH + '/dark.css');
  
  			Dialog.backdropColor = '#2a2a2a';
  	    		Graph.prototype.defaultThemeName = 'darkTheme';
  			Graph.prototype.defaultPageBackgroundColor = '#2a2a2a';
  			Graph.prototype.defaultGraphBackground = null;
  			Graph.prototype.defaultPageBorderColor = '#505759';
  		    Graph.prototype.svgShadowColor = '#e0e0e0';
  		    Graph.prototype.svgShadowOpacity = '0.6';
  		    Graph.prototype.svgShadowSize = '0.8';
  		    Graph.prototype.svgShadowBlur = '1.4';
  			Format.prototype.inactiveTabBackgroundColor = 'black';
  			BaseFormatPanel.prototype.buttonBackgroundColor = '#2a2a2a';
  			Sidebar.prototype.dragPreviewBorder = '1px dashed #cccccc';
  			mxGraphHandler.prototype.previewColor = '#cccccc';
  			StyleFormatPanel.prototype.defaultStrokeColor = '#cccccc';
  			
  			if (mxClient.IS_SVG)
  			{
  				Editor.helpImage = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAMAAAAoLQ9TAAAAP1BMVEUAAAD///////////////////////////////////////////////////////////////////////////////9Du/pqAAAAFXRSTlMAT30qCJRBboyDZyCgRzUUdF46MJlgXETgAAAAeklEQVQY022O2w4DIQhEQUURda/9/28tUO2+7CQS5sgQ4F1RapX78YUwRqQjTU8ILqQfKerTKTvACJ4nLX3krt+8aS82oI8aQC4KavRgtvEW/mDvsICgA03PSGRr79MqX1YPNIxzjyqtw8ZnnRo4t5a5undtJYRywau+ds4Cyza3E6YAAAAASUVORK5CYII=';
  				Editor.checkmarkImage = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABUAAAAVCAMAAACeyVWkAAAARVBMVEUAAACZmZkICAgEBASNjY2Dg4MYGBiTk5N5eXl1dXVmZmZQUFBCQkI3NzceHh4MDAykpKSJiYl+fn5sbGxaWlo/Pz8SEhK96uPlAAAAAXRSTlMAQObYZgAAAE5JREFUGNPFzTcSgDAQQ1HJGUfy/Y9K7V1qeOUfzQifCQZai1XHaz11LFysbDbzgDSSWMZiETz3+b8yNUc/MMsktxuC8XQBSncdLwz+8gCCggGXzBcozAAAAABJRU5ErkJggg==';
  			}
      	}
      };
      
      EditorUi.initTheme();
      
      /**
       * Hides the footer.
       */
      EditorUi.prototype.hideFooter = function()
      {
  	    	var footer = document.getElementById('geFooter');
  		    	
  	    	if (footer != null)
  	    	{
  	    		this.footerHeight = 0;
  	    		footer.style.display = 'none';
  	    		this.refresh();
  	    	}
      };
  
      /**
       * Shows the footer.
       */
      EditorUi.prototype.showFooter = function(height)
      {
      	var footer = document.getElementById('geFooter');
  	    	
      	if (footer != null)
      	{
      		this.footerHeight = height;
      		footer.style.display = 'inline';
      		this.refresh();
      	}
      };
      
  	/**
  	 * Overrides image dialog to add image search and Google+.
  	 */
      EditorUi.prototype.showImageDialog = function(title, value, fn, ignoreExisting, convertDataUri)
  	{
  		// KNOWN: IE+FF don't return keyboard focus after image dialog (calling focus doesn't help)
  	    	var dlg = new ImageDialog(this, title, value, fn, ignoreExisting, convertDataUri);
  		this.showDialog(dlg.container, (Graph.fileSupport) ? 440 : 360, (Graph.fileSupport) ? 200 : 90, true, true);
  		dlg.init();
  	};
  
  	/**
  	 * Hides the current menu.
  	 */
  	EditorUi.prototype.showBackgroundImageDialog = function(apply)
  	{
  		apply = (apply != null) ? apply : mxUtils.bind(this, function(image)
  		{
  			var change = new ChangePageSetup(this, null, image);
  			change.ignoreColor = true;
  			
  			this.editor.graph.model.execute(change);
  		});
  		var dlg = new BackgroundImageDialog(this, mxUtils.bind(this, function(image)
  		{
  			apply(image);
  		}));
  		this.showDialog(dlg.container, 360, 200, true, true);
  		dlg.init();
  	};
  
  	/**
  	 * Hides the current menu.
  	 */
  	EditorUi.prototype.showLibraryDialog = function(name, sidebar, images, file, mode)
  	{
  		var dlg = new LibraryDialog(this, name, sidebar, images, file, mode);
  		
  		this.showDialog(dlg.container, 620, 440, true, false, mxUtils.bind(this, function(cancel)
  		{
  			if (cancel && this.getCurrentFile() == null && urlParams['embed'] != '1')
  			{
  				this.showSplash();
  			}
  		}));
  		
  		dlg.init();
  	};
  
  	/**
  	 * Hook for sidebar footer container.
  	 */
  	EditorUi.prototype.createSidebarFooterContainer = function()
  	{
  		var div =  this.createDiv('geSidebarContainer');
  		div.style.position = 'absolute';
  		div.style.overflow = 'hidden';
  		div.style.borderWidth = '3px';
  
  		var elt2 = document.createElement('a');
  		elt2.setAttribute('href', 'javascript:void(0);');
  		elt2.className = 'geTitle';
  		elt2.style.height = '100%';
  		elt2.style.paddingTop = '9px';
  
  		mxUtils.write(elt2, mxResources.get('moreShapes') + '...');
  
  		mxEvent.addListener(elt2, 'click', mxUtils.bind(this, function(evt)
  		{
  			this.actions.get('shapes').funct();
  			mxEvent.consume(evt);
  		}));
  		
  		div.appendChild(elt2);
  		
  		return div;
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.handleError = function(resp, title, fn)
  	{
  		var resume = (this.spinner != null && this.spinner.pause != null) ? this.spinner.pause() : function() {};
  		var e = (resp != null && resp.error != null) ? resp.error : resp;
  	
  		if (e != null || title != null)
  		{
  			var msg = mxUtils.htmlEntities(mxResources.get('unknownError'));
  			var btn = mxResources.get('ok');
  			var retry = null;
  			title = (title != null) ? title : mxResources.get('error');
  			
  			if (e != null)
  			{
  				if (e.retry != null)
  				{
  					btn = mxResources.get('cancel');
  					retry = function()
  					{
  						resume();
  						e.retry();
  					};
  				}
  				
  				if (typeof(gapi) != 'undefined' && typeof(gapi.drive) != 'undefined' && typeof(gapi.drive.realtime) != 'undefined' &&
  					e.type == gapi.drive.realtime.ErrorType.FORBIDDEN)
  				{
  					msg = mxUtils.htmlEntities(mxResources.get('forbidden'));
  				}
  				else if (e.code == 404 || e.status == 404 || (typeof(gapi) != 'undefined' && typeof(gapi.drive) != 'undefined' &&
  						typeof(gapi.drive.realtime) != 'undefined' && e.type == gapi.drive.realtime.ErrorType.NOT_FOUND))
  				{
  					msg = mxUtils.htmlEntities(mxResources.get('fileNotFoundOrDenied'));
  					var id = window.location.hash;
  					
  					if (id != null && id.substring(0, 2) == '#G')
  					{
  						id = id.substring(2);
  						msg += ' <a href="https://drive.google.com/open?id=' + id + '" target="_blank">' +
  							mxUtils.htmlEntities(mxResources.get('tryOpeningViaThisPage')) + '</a>';
  					}
  				}
  				else if (e.message != null)
  				{
  					msg = mxUtils.htmlEntities(e.message);
  				}
  				else if (e.response != null && e.response.error != null)
  				{
  					msg = mxUtils.htmlEntities(e.response.error);
  				}
  				else if (window.App !== 'undefined')
  				{
  					if (e.code == App.ERROR_TIMEOUT)
  					{
  						msg = mxUtils.htmlEntities(mxResources.get('timeout'));
  					}
  					else if (e.code == App.ERROR_BUSY)
  					{
  						msg = mxUtils.htmlEntities(mxResources.get('busy'));
  					}
  				}
  			}
  	
  			this.showError(title, msg, btn, fn, retry);
  		}
  		else if (fn != null)
  		{
  			fn();
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.showError = function(title, msg, btn, fn, retry, btn2, fn2, btn3, fn3, w, h, hide)
  	{
  		var dlg = new ErrorDialog(this, title, msg, btn || mxResources.get('ok'), fn, retry, btn2, fn2, hide, btn3, fn3);
  		this.showDialog(dlg.container, w || 340, h || 150, true, false);
  		dlg.init();
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.alert = function(msg, fn)
  	{
  		var dlg = new ErrorDialog(this, null, msg, mxResources.get('ok'), fn);
  		this.showDialog(dlg.container, 340, 100, true, false);
  		dlg.init();
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.confirm = function(msg, okFn, cancelFn, okLabel, cancelLabel)
  	{
  		var resume = (this.spinner != null && this.spinner.pause != null) ? this.spinner.pause() : function() {};
  		
  		this.showDialog(new ConfirmDialog(this, msg, function()
  		{
  			resume();
  			
  			if (okFn != null)
  			{
  				okFn();
  			}
  		}, function()
  		{
  			resume();
  			
  			if (cancelFn != null)
  			{
  				cancelFn();
  			}
  		}, okLabel, cancelLabel).container, 340, 90, true, false);	
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.setCurrentFile = function(file)
  	{
  		this.currentFile = file;
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.getCurrentFile = function()
  	{
  		return this.currentFile;
  	};
  	
  	/**
  	 * Handling for canvas export.
  	 */
  
  	/**
  	 * See fixme in convertMath for client-side image generation with math.
  	 */
  	EditorUi.prototype.isExportToCanvas = function()
  	{
  		return mxClient.IS_CHROMEAPP || (!this.editor.graph.mathEnabled && this.useCanvasForExport);
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.createSvgDataUri = function(svg)
  	{
  		return 'data:image/svg+xml;base64,' + btoa(unescape(encodeURIComponent(svg)));
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.createImageDataUri = function(canvas, xml, format)
  	{
     	    var data = canvas.toDataURL('image/' + format);
     	    
     	    // Checks if output is invalid or empty
     	    if (data.length <= 6 || data == canvas.cloneNode(false).toDataURL('image/' + format))
     	    {
     	    		throw {message: 'Invalid image'};
     	    }
     	    
     	    if (xml != null)
     	    {
     	   		data = this.writeGraphModelToPng(data, 'zTXt', 'mxGraphModel', atob(this.editor.graph.compress(xml)));
     	    }
     	    
     	    return data;
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.saveCanvas = function(canvas, xml, format)
  	{
  		var ext = ((format == 'jpeg') ? 'jpg' : format);
  		var filename = this.getBaseFilename() + '.' + ext;
     	    var data = this.createImageDataUri(canvas, xml, format);
     	    this.saveData(filename, ext, data.substring(data.lastIndexOf(',') + 1), 'image/' + format, true);
  	};
  	
  	/**
  	 * Returns true if files should be saved using <saveLocalFile>.
  	 */
  	EditorUi.prototype.isLocalFileSave = function()
  	{
  		return ((urlParams['save'] != 'remote' && (mxClient.IS_IE ||
  			(typeof window.Blob !== 'undefined' && typeof window.URL !== 'undefined')) &&
  			document.documentMode != 9 && document.documentMode != 8 &&
  			document.documentMode != 7 && !mxClient.IS_QUIRKS) ||
  			this.isOfflineApp() || mxClient.IS_IOS);
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.doSaveLocalFile = function(data, filename, mimeType, base64Encoded, format)
  	{
  		// Newer versions of IE
  		if (window.Blob && navigator.msSaveOrOpenBlob)
  		{
  			var blob = (base64Encoded) ?
  					this.base64ToBlob(data, mimeType) :
  					new Blob([data], {type: mimeType})
  			navigator.msSaveOrOpenBlob(blob, filename);
  		}
  		// Older versions of IE (binary not supported)
  		else if (mxClient.IS_IE)
  		{
  			var win = window.open('about:blank', '_blank');
  			
  			if (win == null)
  			{
  				mxUtils.popup(data, true);
  			}
  			else
  			{
  				win.document.write(data);
  				win.document.close();
  				win.document.execCommand('SaveAs', true, filename);
  				win.close();
  			}
  		}
  		else if (mxClient.IS_IOS)
  		{
  			// Poor man's saveAs in iOS via context menu of selected output
  		    	var dlg = new TextareaDialog(this, filename + ':', data, null, null, mxResources.get('close'));
  		    	dlg.textarea.style.width = '600px';
  		    	dlg.textarea.style.height = '380px';
  				this.showDialog(dlg.container, 620, 460, true, true);
  				dlg.init();
  				document.execCommand('selectall', false, null);
  		}
  		else
  		{
  			var a = document.createElement('a');
  			
  			// Workaround for mxXmlRequest.simulate no longer working in Safari/PaleMoon
  			// if this is used (ie PNG export broken after XML export in Safari/PaleMoon).
  			var useDownload = !mxClient.IS_SF && navigator.userAgent.indexOf("PaleMoon/") < 0 &&
  				typeof a.download !== 'undefined';
  			
  			// Workaround for Chromium 65 cross-domain anchor download issue
  			if (mxClient.IS_GC)
  			{
  				var raw = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)
  				var vers = raw ? parseInt(raw[2], 10) : false;
  				useDownload = vers == 65 ? false : useDownload;
  			}
  			
  			if (useDownload || this.isOffline())
  			{
  				a.href = URL.createObjectURL((base64Encoded) ?
  					this.base64ToBlob(data, mimeType) :
  					new Blob([data], {type: mimeType}));
  				
  				if (useDownload)
  				{
  					a.download = filename;
  				}
  				else
  				{
  					// Workaround for same window in Safari
  					a.setAttribute('target', '_blank');
  				}
  
  				document.body.appendChild(a);
  				
  				try
  				{
  					window.setTimeout(function()
  					{
  						URL.revokeObjectURL(a.href);
  					}, 0);
  
  					a.click();
  					a.parentNode.removeChild(a);
  				}
  				catch (e)
  				{
  					// ignore
  				}
  			}
  			else
  			{
  				var req = this.createEchoRequest(data, filename, mimeType, base64Encoded, format);
  				
  				req.simulate(document, '_blank');
  			}
  		}
  	};
  		
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.createEchoRequest = function(data, filename, mimeType, base64Encoded, format, base64Response)
  	{
  		var param = (typeof(pako) === 'undefined' || true) ? 'xml=' + encodeURIComponent(data) :
  			'data=' + encodeURIComponent(this.editor.graph.compress(data));
  		
  		return new mxXmlRequest(SAVE_URL, param +
  			((mimeType != null) ? '&mime=' + mimeType : '') +
  			((format != null) ? '&format=' + format : '') +
  			((base64Response != null) ? '&base64=' + base64Response : '') +
  			((filename != null) ? '&filename=' + encodeURIComponent(filename) : '') +
  			((base64Encoded) ? '&binary=1' : ''));
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.base64ToBlob = function(base64Data, contentType)
  	{
  	    contentType = contentType || '';
  	    var sliceSize = 1024;
  	    var byteCharacters = atob(base64Data);
  	    var bytesLength = byteCharacters.length;
  	    var slicesCount = Math.ceil(bytesLength / sliceSize);
  	    var byteArrays = new Array(slicesCount);
  	
  	    for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex)
  	    {
  	        var begin = sliceIndex * sliceSize;
  	        var end = Math.min(begin + sliceSize, bytesLength);
  	
  	        var bytes = new Array(end - begin);
  	        
  	        for (var offset = begin, i = 0 ; offset < end; ++i, ++offset)
  	        {
  	            bytes[i] = byteCharacters[offset].charCodeAt(0);
  	        }
  	        
  	        byteArrays[sliceIndex] = new Uint8Array(bytes);
  	    }
  	
  	    return new Blob(byteArrays, {type: contentType});
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.saveLocalFile = function(data, filename, mimeType, base64Encoded, format, allowBrowser, allowTab)
  	{
  		allowBrowser = (allowBrowser != null) ? allowBrowser : false;
  		allowTab = (allowTab != null) ? allowTab : (format != 'vsdx') && (!mxClient.IS_IOS || !navigator.standalone);
  		var count = this.getServiceCount(allowBrowser);
  		
  		var dlg = new CreateDialog(this, filename, mxUtils.bind(this, function(newTitle, mode)
  		{
  			try
  			{
  				// Opens a new window
  				if (mode == '_blank')
  				{
  					if (mimeType != null && mimeType.substring(0, 6) == 'image/' &&
  						(mimeType.substring(0, 9) != 'image/svg' || mxClient.IS_SVG))
  					{
  						this.openInNewWindow(data, mimeType, base64Encoded);
  					}
  					else
  					{
  						var win = window.open('about:blank');
  						
  						if (win == null)
  						{
  							mxUtils.popup(data, true);
  						}
  						else
  						{
  							win.document.write(mxUtils.htmlEntities(data, false));
  							win.document.close();
  						}
  					}
  				}
  				else if (mode == App.MODE_DEVICE || mode == 'download')
  				{
  					this.doSaveLocalFile(data, newTitle, mimeType, base64Encoded);
  				} 
  				else if (newTitle != null && newTitle.length > 0)
  				{
  					this.pickFolder(mode, mxUtils.bind(this, function(folderId)
  					{
  						try
  						{
  							this.exportFile(data, newTitle, mimeType, base64Encoded, mode, folderId);
  						}
  						catch (e)
  						{
  							this.handleError(e);
  						}
  					}));
  				}
  			}
  			catch (e)
  			{
  				this.handleError(e);
  			}
  		}), mxUtils.bind(this, function()
  		{
  			this.hideDialog();
  		}), mxResources.get('saveAs'), mxResources.get('download'), false, allowBrowser, allowTab,
  			null, count > 1, (count > 4 && (!allowBrowser || count < 6)) ? 3 : 4, data, mimeType, base64Encoded);
  		var noServices = (mxClient.IS_IOS) ? 0 : 1;
  		var height = (count == noServices) ? 160 : ((count > 4) ? 390 : 270);
  		this.showDialog(dlg.container, 420, height, true, true);
  		dlg.init();
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.openInNewWindow = function(data, mimeType, base64Encoded)
  	{
  		// In Google Chrome 60 the code from below produces a blank window
  		if (mxClient.IS_GC || mxClient.IS_EDGE || document.documentMode == 11 || document.documentMode == 10)
  		{
  			var win = window.open('about:blank');
  			
  			if (win == null)
  			{
  				mxUtils.popup(data, true);
  			}
  			else
  			{
  				// Workaround for broken images in SVG output in Chrome
  				if (mimeType == 'image/svg+xml')
  				{
  					win.document.write('<html>' + data + '</html>');
  				}
  				else
  				{
  					win.document.write('<html><img src="data:' +
  						mimeType + ((base64Encoded) ? ';base64,' +
  						data : ';charset=utf8,' + encodeURIComponent(data)) +
  						'"/></html>');
  				}
  				
  				win.document.close();
  			}
  		}
  		else
  		{
  			// win.open is workaround for cleared contents in Chrome after delay
  			// when using location.replace
  			var win = window.open('data:' + mimeType + ((base64Encoded) ? ';base64,' +
  					data : ';charset=utf8,' + encodeURIComponent(data)));
  			
  			if (win == null)
  			{
  				mxUtils.popup(data, true);
  			}
  		}
  	};
  	
  	var editoUiAddChromelessToolbarItems = EditorUi.prototype.addChromelessToolbarItems;
  
  	/**
  	 * Creates a temporary graph instance for rendering off-screen content.
  	 */
  	EditorUi.prototype.addChromelessToolbarItems = function(addButton)
  	{
  		if (this.isExportToCanvas())
  		{
  			this.exportDialog = null;
  			
  			var exportButton = addButton(mxUtils.bind(this, function(evt)
  			{
  				var clickHandler = mxUtils.bind(this, function()
  				{
  					mxEvent.removeListener(this.editor.graph.container, 'click', clickHandler);
  					
  					if (this.exportDialog != null)
  					{
  						this.exportDialog.parentNode.removeChild(this.exportDialog);
  						this.exportDialog = null;
  					}
  				});
  				
  				if (this.exportDialog != null)
  				{
  					clickHandler.apply(this);
  				}
  				else
  				{
  					this.exportDialog = document.createElement('div');
  					var r = exportButton.getBoundingClientRect();
  					
  					mxUtils.setPrefixedStyle(this.exportDialog.style, 'borderRadius', '5px');
  					this.exportDialog.style.position = 'fixed';
  					this.exportDialog.style.textAlign = 'center';
  					this.exportDialog.style.fontFamily = 'Helvetica,Arial';
  					this.exportDialog.style.backgroundColor = '#000000';
  					this.exportDialog.style.width = '50px';
  					this.exportDialog.style.height = '50px';
  					this.exportDialog.style.padding = '4px 2px 4px 2px';
  					this.exportDialog.style.color = '#ffffff';
  					mxUtils.setOpacity(this.exportDialog, 70);
  					this.exportDialog.style.left = r.left + 'px';
  					this.exportDialog.style.bottom = parseInt(this.chromelessToolbar.style.bottom) +
  						this.chromelessToolbar.offsetHeight + 4 + 'px';
  					
  					// Puts the dialog on top of the container z-index
  					var style = mxUtils.getCurrentStyle(this.editor.graph.container);
  					this.exportDialog.style.zIndex = style.zIndex;
  					
  					var spinner = new Spinner({
  						lines: 8, // The number of lines to draw
  						length: 6, // The length of each line
  						width: 5, // The line thickness
  						radius: 6, // The radius of the inner circle
  						rotate: 0, // The rotation offset
  						color: '#fff', // #rgb or #rrggbb
  						speed: 1.5, // Rounds per second
  						trail: 60, // Afterglow percentage
  						shadow: false, // Whether to render a shadow
  						hwaccel: false, // Whether to use hardware acceleration
  						top: '28px',
  						zIndex: 2e9 // The z-index (defaults to 2000000000)
  					});
  					spinner.spin(this.exportDialog);
  					
  				   	this.exportToCanvas(mxUtils.bind(this, function(canvas)
  				   	{
  				   		spinner.stop();
  				   		
  						this.exportDialog.style.width = 'auto';
  						this.exportDialog.style.height = 'auto';
  						this.exportDialog.style.padding = '10px';
  				   		
  			   	   	    var data = this.createImageDataUri(canvas, null, 'png');
  			   	   	    var img = document.createElement('img');
  			   	   	    
  			   	   	    img.style.maxWidth = '140px';
  			   	   	    img.style.maxHeight = '140px';
  			   	   	    img.style.cursor = 'pointer';
  			   	   	    img.style.backgroundColor = 'white';
  			   	   	    
  			   	   	    img.setAttribute('title', mxResources.get('openInNewWindow'));
  			   	   	    img.setAttribute('border', '0');
  			   	   	    img.setAttribute('src', data);
  			   	   	    
  			   	   	    this.exportDialog.appendChild(img);
  
  						mxEvent.addListener(img, 'click', mxUtils.bind(this, function()
  						{
  							this.openInNewWindow(data.substring(data.indexOf(',') + 1), 'image/png', true);
  							clickHandler.apply(this, arguments);
  						}));
  				   	}), null, this.thumbImageCache, null, mxUtils.bind(this, function(e)
  				   	{
  				   		this.spinner.stop();
  				   		this.handleError(e);
  				   	}));
  					
  					mxEvent.addListener(this.editor.graph.container, 'click', clickHandler);
  				   	document.body.appendChild(this.exportDialog);
  				}
  				
  				mxEvent.consume(evt);
  			}), Editor.cameraLargeImage, mxResources.get('export'));
  		}
  
  		editoUiAddChromelessToolbarItems.apply(this, arguments);
  	};
  
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.saveData = function(filename, format, data, mime, base64Encoded)
  	{
  		if (this.isLocalFileSave())
  		{
  			this.saveLocalFile(data, filename, mime, base64Encoded, format);
  		}
  		else
  		{
  			this.saveRequest(filename, format, mxUtils.bind(this, function(newTitle, base64)
  			{
  				return this.createEchoRequest(data, newTitle, mime, base64Encoded, format, base64);
  			}), data, base64Encoded, mime);
  		}
  	};
  	
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * Last 3 argument are optional and must only be used if the data can be stored as is on the client
  	 * side without requiring a server roundtrip.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.saveRequest = function(filename, format, fn, data, base64Encoded, mimeType, allowTab)
  	{
  		allowTab = (allowTab != null) ? allowTab : !mxClient.IS_IOS || !navigator.standalone;
  		var count = this.getServiceCount(false);
  		
  		var dlg = new CreateDialog(this, filename, mxUtils.bind(this, function(newTitle, mode)
  		{
  			if (mode == '_blank' || newTitle != null && newTitle.length > 0)
  			{
  				var base64 = (mode == App.MODE_DEVICE || mode == 'download' || mode == null || mode == '_blank') ? '0' : '1';
  				var xhr = fn((mode == '_blank') ? null : newTitle, base64);
  				
  				if (xhr != null)
  				{
  					if (mode == App.MODE_DEVICE || mode == 'download' || mode == '_blank')
  					{
  						xhr.simulate(document, '_blank');
  					}
  					else
  					{
  						this.pickFolder(mode, mxUtils.bind(this, function(folderId)
  						{
  							mimeType = (mimeType != null) ? mimeType : ((format == 'pdf') ?
  								'application/pdf' : 'image/' + format);
  							
  							// Workaround for no roundtrip required if data is available on client-side
  							// TODO: Refactor the saveData/saveRequest call chain for local data
  							if (data != null)
  							{
  								try
  								{
  									this.exportFile(data, newTitle, mimeType, true, mode, folderId);
  								}
  								catch (e)
  								{
  									this.handleError(e);
  								}
  							}
  							else if (this.spinner.spin(document.body, mxResources.get('saving')))
  							{
  								// LATER: Catch possible mixed content error
  								// see http://stackoverflow.com/questions/30646417/catching-mixed-content-error
  								xhr.send(mxUtils.bind(this, function()
  								{
  									this.spinner.stop();
  									
  									if (xhr.getStatus() >= 200 && xhr.getStatus() <= 299)
  									{
  										try
  										{
  											this.exportFile(xhr.getText(), newTitle, mimeType, true, mode, folderId);
  										}
  										catch (e)
  										{
  											this.handleError(e);
  										}
  									}
  									else
  									{
  										this.handleError({message: mxResources.get('errorSavingFile')});
  									}
  								}), function(resp)
  								{
  									this.spinner.stop();
  									this.handleError(resp);
  								});
  							}
  						}));
  					}
  				}
  			}
  		}), mxUtils.bind(this, function()
  		{
  			this.hideDialog();
  		}), mxResources.get('saveAs'), mxResources.get('download'), false, false, allowTab,
  			null, count > 1, (count > 4) ? 3 : 4, data, mimeType, base64Encoded);
  		var noServices = (mxClient.IS_IOS) ? 0 : 1;
  		var height = (count == noServices) ? 160 : ((count > 4) ? 390 : 270);
  		this.showDialog(dlg.container, 380, height, true, true);
  		dlg.init();
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.getEditBlankXml = function()
  	{
  		return this.getFileData(true);
  	};
  		
  	/**
  	 * Hook for subclassers.
  	 */
  	EditorUi.prototype.exportFile = function(data, filename, mimeType, base64Encoded, mode, folderId)
  	{
  		// do nothing
  	};
  	
  	/**
  	 * Hook for subclassers.
  	 */
  	EditorUi.prototype.pickFolder = function(mode, fn, enabled)
  	{
  		fn(null);
  	};
  
  	/**
  	 *
  	 */
  	EditorUi.prototype.exportSvg = function(scale, transparentBackground, ignoreSelection, addShadow, editable, embedImages, border, noCrop, currentPage)
  	{
  		if (this.spinner.spin(document.body, mxResources.get('export')))
  		{
  			var selectionEmpty = this.editor.graph.isSelectionEmpty();
  			ignoreSelection = (ignoreSelection != null) ? ignoreSelection : selectionEmpty;
  			var bg = (transparentBackground) ? null : this.editor.graph.background;
  			
  			if (bg == mxConstants.NONE)
  			{
  				bg = null;
  			}
  			
  			// Handles special case where background is null but transparent is false
  			if (bg == null && transparentBackground == false)
  			{
  				bg = '#ffffff';
  			}
  			
  			// Sets or disables alternate text for foreignObjects. Disabling is needed
  			// because PhantomJS seems to ignore switch statements and paint all text.
  			var svgRoot = this.editor.graph.getSvg(bg, scale, border, noCrop, null, ignoreSelection);
  			
  			if (addShadow)
  			{
  				this.editor.graph.addSvgShadow(svgRoot);
  			}
  			
  			var filename = this.getBaseFilename() + '.svg';
  
  			var doSave = mxUtils.bind(this, function(svgRoot)
  			{
  				this.spinner.stop();
  				
  				if (editable)
  				{
  					svgRoot.setAttribute('content', this.getFileData(true, null, null, null, ignoreSelection, currentPage));
  				}
  				
  				if (this.editor.fontCss != null)
  				{
  					var svgDoc = svgRoot.ownerDocument;
  					var style = (svgDoc.createElementNS != null) ?
  							svgDoc.createElementNS(mxConstants.NS_SVG, 'style') : svgDoc.createElement('style');
  					style.setAttribute('type', 'text/css');
  					mxUtils.setTextContent(style, this.editor.fontCss);
  					svgRoot.getElementsByTagName('defs')[0].appendChild(style);
  				}
  				
  				var svg = '<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n' +
  					mxUtils.getXml(svgRoot);
  				
  		    		if (this.isLocalFileSave() || svg.length <= MAX_REQUEST_SIZE)
  		    		{
  		    			this.saveData(filename, 'svg', svg, 'image/svg+xml');
  		    		}
  		    		else
  		    		{
  		    			this.handleError({message: mxResources.get('drawingTooLarge')}, mxResources.get('error'), mxUtils.bind(this, function()
  		    			{
  		    				mxUtils.popup(svg);
  		    			}));
  		    		}
  			});
  			
  			this.convertMath(this.editor.graph, svgRoot, false, mxUtils.bind(this, function()
  			{
  				if (embedImages)
  				{
  					// Caches images
  					if (this.thumbImageCache == null)
  					{
  						this.thumbImageCache = new Object();
  					}
  					
  					this.convertImages(svgRoot, doSave, this.thumbImageCache);
  				}
  				else
  				{
  					doSave(svgRoot);
  				}
  			}));
  		}
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.addCheckbox = function(div, label, checked, disabled, disableNewline, visible)
  	{
  		visible = (visible != null) ? visible : true;
  		
  		var cb = document.createElement('input');
  		cb.style.marginRight = '8px';
  		cb.style.marginTop = '16px';
  		cb.setAttribute('type', 'checkbox');
  		
  		if (checked)
  		{
  			cb.setAttribute('checked', 'checked');
  			cb.defaultChecked = true;
  		}
  		
  		if (disabled)
  		{
  			cb.setAttribute('disabled', 'disabled');
  		}
  		
  		if (visible)
  		{
  			div.appendChild(cb);
  			
  			var span = document.createElement('span');
  			mxUtils.write(span, label);
  			div.appendChild(span);
  
  			if (!disableNewline)
  			{
  				mxUtils.br(div);
  			}
  			
  			mxEvent.addListener(span, 'click', mxUtils.bind(this, function(evt)
  			{
  				if (cb.getAttribute('disabled') != 'disabled')
  				{
  					cb.checked = !cb.checked;
  					mxEvent.consume(evt);
  				}
  			}));
  		}
  		
  		return cb;
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.addEditButton = function(div, lightbox)
  	{
  		var edit = this.addCheckbox(div, mxResources.get('edit') + ':', true, null, true);
  		edit.style.marginLeft = '24px';
  		
  		var file = this.getCurrentFile();
  		var editUrl = '';
  		
  		if (file != null && file.getMode() != App.MODE_DEVICE && file.getMode() != App.MODE_BROWSER)
  		{
  			editUrl = window.location.href;
  		}
  		
  		var editSelect = document.createElement('select');
  		editSelect.style.width = '120px';
  		editSelect.style.marginLeft = '8px';
  		editSelect.style.marginRight = '10px';
  		editSelect.className = 'geBtn';
  
  		var blankOption = document.createElement('option');
  		blankOption.setAttribute('value', 'blank');
  		mxUtils.write(blankOption, mxResources.get('makeCopy'));
  		editSelect.appendChild(blankOption);
  
  		var customOption = document.createElement('option');
  		customOption.setAttribute('value', 'custom');
  		mxUtils.write(customOption, mxResources.get('custom') + '...');
  		editSelect.appendChild(customOption);
  		
  		div.appendChild(editSelect);
  		
  		mxEvent.addListener(editSelect, 'change', mxUtils.bind(this, function()
  		{
  			if (editSelect.value == 'custom')
  			{
  				var dlg2 = new FilenameDialog(this, editUrl, mxResources.get('ok'), function(value)
  				{
  					if (value != null)
  					{
  						editUrl = value;
  					}
  					else
  					{
  						editSelect.value = 'blank';
  					}
  				}, mxResources.get('url'), null, null, null, null, function()
  				{
  					editSelect.value = 'blank';
  				});
  				this.showDialog(dlg2.container, 300, 80, true, false);
  				dlg2.init();
  			}
  		}));
  		
  		mxEvent.addListener(edit, 'change', mxUtils.bind(this, function()
  		{
  			if (edit.checked && (lightbox == null || lightbox.checked))
  			{
  				editSelect.removeAttribute('disabled');
  			}
  			else
  			{
  				editSelect.setAttribute('disabled', 'disabled');
  			}
  		}));
  
  		mxUtils.br(div);
  		
  		return {
  			getLink: function()
  			{
  				return (edit.checked) ? ((editSelect.value === 'blank') ? '_blank' : editUrl) : null;
  			},
  			getEditInput: function()
  			{
  				return edit;
  			},
  			getEditSelect: function()
  			{
  				return editSelect;
  			}
  		};
  	}
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.addLinkSection = function(div, showFrameOption)
  	{
  		mxUtils.write(div, mxResources.get('links') + ':');
  
  		var linkSelect = document.createElement('select');
  		linkSelect.style.width = '100px';
  		linkSelect.style.marginLeft = '8px';
  		linkSelect.style.marginRight = '10px';
  		linkSelect.className = 'geBtn';
  
  		var autoOption = document.createElement('option');
  		autoOption.setAttribute('value', 'auto');
  		mxUtils.write(autoOption, mxResources.get('automatic'));
  		linkSelect.appendChild(autoOption);
  
  		var blankOption = document.createElement('option');
  		blankOption.setAttribute('value', 'blank');
  		mxUtils.write(blankOption, mxResources.get('openInNewWindow'));
  		linkSelect.appendChild(blankOption);
  
  		var selfOption = document.createElement('option');
  		selfOption.setAttribute('value', 'self');
  		mxUtils.write(selfOption, mxResources.get('openInThisWindow'));
  		linkSelect.appendChild(selfOption);
  
  		if (showFrameOption)
  		{
  			var frameOption = document.createElement('option');
  			frameOption.setAttribute('value', 'frame');
  			mxUtils.write(frameOption, mxResources.get('openInThisWindow') +
  				' (' + mxResources.get('iframe') + ')');
  			linkSelect.appendChild(frameOption);
  		}
  		
  		div.appendChild(linkSelect);
  		
  		mxUtils.write(div, mxResources.get('borderColor') + ':');
  		var linkColor = '#0000ff';
  		var linkButton = null;
  		
  		function updateLinkColor()
  		{
  			linkButton.innerHTML = '<div style="width:100%;height:100%;box-sizing:border-box;' +
  				((linkColor != null && linkColor != mxConstants.NONE) ?
  				'border:1px solid black;background-color:' + linkColor :
  				'background-position:center center;background-repeat:no-repeat;' +
  				'background-image:url(\'' + Dialog.prototype.closeImage + '\')') + ';"></div>';
  		};
  		
  		linkButton = mxUtils.button('', mxUtils.bind(this, function(evt)
  		{
  			this.pickColor(linkColor || 'none', function(color)
  			{
  				linkColor = color;
  				updateLinkColor();
  			});
  			
  			mxEvent.consume(evt);
  		}));
  
  		updateLinkColor();
  		linkButton.style.padding = (mxClient.IS_FF) ? '4px 2px 4px 2px' : '4px';
  		linkButton.style.marginLeft = '4px';
  		linkButton.style.height = '22px';
  		linkButton.style.width = '22px';
  		linkButton.style.position = 'relative';
  		linkButton.style.top = (mxClient.IS_IE || mxClient.IS_IE11 || mxClient.IS_EDGE) ? '6px' : '1px';
  		linkButton.className = 'geColorBtn';
  		div.appendChild(linkButton);
  		mxUtils.br(div);
  		
  		return {
  			getColor: function()
  			{
  				return linkColor;
  			},
  			getTarget: function()
  			{
  				return linkSelect.value;
  			},
  			focus: function()
  			{
  				linkSelect.focus();
  			}
  		};
  	}
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.createLink = function(linkTarget, linkColor, allPages, lightbox, editLink, layers, url, ignoreFile)
  	{
  		var file = this.getCurrentFile();
  		var params = [];
  		
  		if (lightbox)
  		{
  			params.push('lightbox=1');
  
  			if (linkTarget != 'auto')
  			{
  				params.push('target=' + linkTarget);
  			}
  			
  			if (linkColor != null && linkColor != mxConstants.NONE)
  			{
  				params.push('highlight=' + ((linkColor.charAt(0) == '#') ? linkColor.substring(1) : linkColor));
  			}
  			
  			if (editLink != null && editLink.length > 0)
  			{
  				params.push('edit=' + encodeURIComponent(editLink));
  			}
  			
  			if (layers)
  			{
  				params.push('layers=1');
  			}
  			
  			if (this.editor.graph.foldingEnabled)
  			{
  				params.push('nav=1');
  			}
  		}
  		
  		if (allPages && this.pages != null && this.currentPage != null)
  		{
  			for (var i = 0; i < this.pages.length; i++)
  			{
  				if (this.pages[i] == this.currentPage)
  				{
  					if (i > 0)
  					{
  						params.push('page=' + i);
  					}
  					
  					break;
  				}
  			}
  		}
  		
  		var data = '';
  		var addTitle = true;
  		
  		if (url != null)
  		{
  			data = '#U' + encodeURIComponent(url);
  		}
  		else
  		{
  			var file = this.getCurrentFile();
  
  			// Fallback to non-public URL for Drive files	
  			if (!ignoreFile && file != null && file.constructor == window.DriveFile)
  			{
  				data = '#' + file.getHash();
  				addTitle = false;
  			}
  			else
  			{
  				data = '#R' + encodeURIComponent((allPages) ?
  					this.getFileData(true, null, null, null, null, null, null, true) :
  					this.editor.graph.compress(mxUtils.getXml(this.editor.getGraphXml())))
  			}
  		}
  
  		if (addTitle && file != null && file.getTitle() != null && file.getTitle() != this.defaultFilename)
  		{
  			params.push('title=' + encodeURIComponent(file.getTitle()));
  		}
  
  		return ((mxClient.IS_CHROMEAPP || EditorUi.isElectronApp || !(/.*\.draw\.io$/.test(window.location.hostname))) ?
  			'https://www.draw.io/' : 'https://' + window.location.host + '/') +
  			((params.length > 0) ? '?' + params.join('&') : '') + data;
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.createHtml = function(publicUrl, zoomEnabled, initialZoom, linkTarget,
  		linkColor, fit, allPages, layers, lightbox, editLink, fn)
  	{
  		var s = this.getBasenames();
  		var data = {};
  		
  		if (linkColor != '' && linkColor != mxConstants.NONE)
  		{
  			data.highlight = linkColor;
  		}
  		
  		if (linkTarget !== 'auto')
  		{
  			data.target = linkTarget;
  		}
  		
  		if (!lightbox)
  		{
  			data.lightbox = false;
  		}
  		
  		data.nav = this.editor.graph.foldingEnabled;
  		var zoom = parseInt(initialZoom);
  		
  		if (!isNaN(zoom) && zoom != 100)
  		{
  			data.zoom = zoom / 100;
  		}
  		
  		var tb = [];
  		
  		if (allPages)
  		{
  			tb.push('pages');
  			data.resize = true;
  			
  			if (this.pages != null && this.currentPage != null)
  			{
  				data.page = mxUtils.indexOf(this.pages, this.currentPage);
  			}
  		}
  		
  		if (zoomEnabled)
  		{
  			tb.push('zoom');
  			data.resize = true;
  		}
  		
  		if (layers)
  		{
  			tb.push('layers');
  		}
  		
  		if (tb.length > 0)
  		{
  			if (lightbox)
  			{
  				tb.push('lightbox');
  			}
  			
  			data.toolbar = tb.join(' ');
  		}
  
  		if (editLink != null && editLink.length > 0)
  		{
  			data.edit = editLink;
  		}
  		
  		if (publicUrl != null)
  		{
  			data.url = publicUrl;
  		}
  		else
  		{
  			data.xml = this.getFileData(true, null, null, null, null, !allPages);
  		}
  	
  		var value = '<div class="mxgraph" style="' +
  			((fit) ? 'max-width:100%;' : '') +
  			((tb != '') ? 'border:1px solid transparent;' : '') +
  			'" data-mxgraph="' + mxUtils.htmlEntities(JSON.stringify(data)) + '"></div>';
  		
  		var fetchParam = (publicUrl != null) ? '&fetch=' + encodeURIComponent(publicUrl) : '';
  		var s2 = (fetchParam.length > 0) ?
  			(((urlParams['dev'] == '1') ?
  			'https://test.draw.io/embed2.js?dev=1' :
  			'https://www.draw.io/embed2.js?')) + fetchParam :
  			(((urlParams['dev'] == '1') ?
  			'https://test.draw.io/js/viewer.min.js' :
  			'https://www.draw.io/js/viewer.min.js'));
  		var scr = '<script type="text/javascript" src="' + s2 + '"></script>';
  		
  		fn(value, scr);
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.showHtmlDialog = function(btnLabel, helpLink, publicUrl, fn)
  	{
  		var div = document.createElement('div');
  		div.style.whiteSpace = 'nowrap';
  		var graph = this.editor.graph;
  		
  		var hd = document.createElement('h3');
  		mxUtils.write(hd, mxResources.get('html'));
  		hd.style.cssText = 'width:100%;text-align:center;margin-top:0px;margin-bottom:12px';
  		div.appendChild(hd);
  
  		var radioSection = document.createElement('div');
  		radioSection.style.cssText = 'border-bottom:1px solid lightGray;padding-bottom:8px;margin-bottom:12px;';
  
  		var publicUrlRadio = document.createElement('input');
  		publicUrlRadio.style.cssText = 'margin-right:8px;margin-top:8px;margin-bottom:8px;';
  		publicUrlRadio.setAttribute('value', 'url');
  		publicUrlRadio.setAttribute('type', 'radio');
  		publicUrlRadio.setAttribute('name', 'type-embedhtmldialog');
  
  		var copyRadio = publicUrlRadio.cloneNode(true);
  		copyRadio.setAttribute('value', 'copy');
  		radioSection.appendChild(copyRadio);
  		
  		var span = document.createElement('span');
  		mxUtils.write(span, mxResources.get('includeCopyOfMyDiagram'));
  		radioSection.appendChild(span);
  		
  		mxUtils.br(radioSection);
  		radioSection.appendChild(publicUrlRadio);
  
  		var span = document.createElement('span');
  		mxUtils.write(span, mxResources.get('publicDiagramUrl'));
  		radioSection.appendChild(span);
  
  		var file = this.getCurrentFile();
  		
  		if (publicUrl == null && file != null && file.constructor == window.DriveFile)
  		{
  			var testLink = document.createElement('a');
  			testLink.style.paddingLeft = '12px';
  			testLink.style.color = 'gray';
  			testLink.setAttribute('href', 'javascript:void(0);');
  			mxUtils.write(testLink, mxResources.get('share'));
  			radioSection.appendChild(testLink);
  			
  			mxEvent.addListener(testLink, 'click', mxUtils.bind(this, function()
  			{
  				this.hideDialog();
  				this.drive.showPermissions(file.getId());
  			}));
  		}
  
  		copyRadio.setAttribute('checked', 'checked');
  		
  		if (publicUrl == null)
  		{
  			publicUrlRadio.setAttribute('disabled', 'disabled');
  		}
  
  		div.appendChild(radioSection);
  
  		var linkSection = this.addLinkSection(div);
  		var zoom = this.addCheckbox(div, mxResources.get('zoom'), true, null, true);
  		mxUtils.write(div, ':');
  		
  		var zoomInput = document.createElement('input');
  		zoomInput.setAttribute('type', 'text');
  		zoomInput.style.marginRight = '16px';
  		zoomInput.style.width = '60px';
  		zoomInput.style.marginLeft = '4px';
  		zoomInput.style.marginRight = '12px';
  		zoomInput.value = '100%';
  		
  		div.appendChild(zoomInput);
  
  		var fit = this.addCheckbox(div, mxResources.get('fit'), true);
  		var hasPages = this.pages != null && this.pages.length > 1;
  		var allPages = allPages = this.addCheckbox(div, mxResources.get('allPages'), hasPages, !hasPages);
  		var layers = this.addCheckbox(div, mxResources.get('layers'), true);
  		var lightbox = this.addCheckbox(div, mxResources.get('lightbox'), true);
  		
  		var editSection = this.addEditButton(div, lightbox);
  		var edit = editSection.getEditInput();
  		edit.style.marginBottom = '16px';
  		
  		mxEvent.addListener(lightbox, 'change', function()
  		{
  			if (lightbox.checked)
  			{
  				edit.removeAttribute('disabled');
  			}
  			else
  			{
  				edit.setAttribute('disabled', 'disabled');
  			}
  			
  			if (edit.checked && lightbox.checked)
  			{
  				editSection.getEditSelect().removeAttribute('disabled');
  			}
  			else
  			{
  				editSection.getEditSelect().setAttribute('disabled', 'disabled');
  			}
  		});
  		
  		var dlg = new CustomDialog(this, div, mxUtils.bind(this, function()
  		{
  			fn((publicUrlRadio.checked) ? publicUrl : null, zoom.checked, zoomInput.value, linkSection.getTarget(),
  				linkSection.getColor(), fit.checked, allPages.checked, layers.checked, lightbox.checked,
  				editSection.getLink());
  		}), null, btnLabel, helpLink);
  		this.showDialog(dlg.container, 340, 384, true, true);
  		copyRadio.focus();
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.showPublishLinkDialog = function(title, hideShare, width, height, fn, showFrameOption)
  	{
  		var div = document.createElement('div');
  		div.style.whiteSpace = 'nowrap';
  		var graph = this.editor.graph;
  		
  		var hd = document.createElement('h3');
  		mxUtils.write(hd, title || mxResources.get('link'));
  		hd.style.cssText = 'width:100%;text-align:center;margin-top:0px;margin-bottom:12px';
  		div.appendChild(hd);
  		
  		var file = this.getCurrentFile();
  		var helpLink = 'https://desk.draw.io/support/solutions/articles/16000051941';
  		var dy = 0;
  		
  		if (file != null && file.constructor == window.DriveFile && !hideShare)
  		{
  			dy = 80;
  			helpLink = 'https://desk.draw.io/support/solutions/articles/16000039384';
  			var hintSection = document.createElement('div');
  			hintSection.style.cssText = 'border-bottom:1px solid lightGray;padding-bottom:14px;padding-top:6px;margin-bottom:14px;text-align:center;';
  			
  			var text = document.createElement('div');
  			text.style.whiteSpace = 'normal';
  			mxUtils.write(text, mxResources.get('linkAccountRequired'));
  			hintSection.appendChild(text);
  			
  			var shareBtn = mxUtils.button(mxResources.get('share'), mxUtils.bind(this, function()
  			{
  				this.drive.showPermissions(file.getId());
  			}));
  			shareBtn.style.marginTop = '12px';
  			shareBtn.className = 'geBtn';
  			hintSection.appendChild(shareBtn);
  			div.appendChild(hintSection);
  			
  			var testLink = document.createElement('a');
  			testLink.style.paddingLeft = '12px';
  			testLink.style.color = 'gray';
  			testLink.style.fontSize = '11px';
  			testLink.setAttribute('href', 'javascript:void(0);');
  			mxUtils.write(testLink, mxResources.get('check'));
  			hintSection.appendChild(testLink);
  			
  			mxEvent.addListener(testLink, 'click', mxUtils.bind(this, function()
  			{
  				if (this.spinner.spin(document.body, mxResources.get('loading')))
  				{
  					this.getPublicUrl(this.getCurrentFile(), mxUtils.bind(this, function(url)
  					{
  						this.spinner.stop();
  						
  						var dlg = new ErrorDialog(this, null, mxResources.get((url != null) ?
  							'diagramIsPublic' : 'diagramIsNotPublic'), mxResources.get('ok'));
  						this.showDialog(dlg.container, 300, 80, true, false);
  						dlg.init();
  					}));
  				}
  			}));
  		}
  		
  		var widthInput = null;
  		var heightInput = null;
  		
  		if (width != null || height != null)
  		{
  			dy += 30;
  			mxUtils.write(div, mxResources.get('width') + ':');
  
  			widthInput = document.createElement('input');
  			widthInput.setAttribute('type', 'text');
  			widthInput.style.marginRight = '16px';
  			widthInput.style.width = '50px';
  			widthInput.style.marginLeft = '6px';
  			widthInput.style.marginRight = '16px';
  			widthInput.style.marginBottom = '10px';
  			widthInput.value = '100%';
  			
  			div.appendChild(widthInput);
  
  			mxUtils.write(div, mxResources.get('height') + ':');
  			
  			heightInput = document.createElement('input');
  			heightInput.setAttribute('type', 'text');
  			heightInput.style.width = '50px';
  			heightInput.style.marginLeft = '6px';
  			heightInput.style.marginBottom = '10px';
  			heightInput.value = height + 'px';
  			
  			div.appendChild(heightInput);
  			mxUtils.br(div);
  		}
  		
  		var linkSection = this.addLinkSection(div, showFrameOption);
  		var hasPages = this.pages != null && this.pages.length > 1;
  		var allPages = null;
  		
  		if (file == null || file.constructor != window.DriveFile || hideShare)
  		{
  			allPages = this.addCheckbox(div, mxResources.get('allPages'), hasPages, !hasPages);
  		}
  		
  		var lightbox = this.addCheckbox(div, mxResources.get('lightbox'), true);
  		var editSection = this.addEditButton(div, lightbox);
  		var edit = editSection.getEditInput();
  
  		var layers = this.addCheckbox(div, mxResources.get('layers'), true);
  		layers.style.marginLeft = edit.style.marginLeft;
  		layers.style.marginBottom = '16px';
  		layers.style.marginTop = '8px';
  		
  		mxEvent.addListener(lightbox, 'change', function()
  		{
  			if (lightbox.checked)
  			{
  				layers.removeAttribute('disabled');
  				edit.removeAttribute('disabled');
  			}
  			else
  			{
  				layers.setAttribute('disabled', 'disabled');
  				edit.setAttribute('disabled', 'disabled');
  			}
  			
  			if (edit.checked && lightbox.checked)
  			{
  				editSection.getEditSelect().removeAttribute('disabled');
  			}
  			else
  			{
  				editSection.getEditSelect().setAttribute('disabled', 'disabled');
  			}
  		});
  		
  		var dlg = new CustomDialog(this, div, mxUtils.bind(this, function()
  		{
  			fn(linkSection.getTarget(), linkSection.getColor(),
  				(allPages == null) ? true : allPages.checked,
  				lightbox.checked, editSection.getLink(),
  				layers.checked, (widthInput != null) ? widthInput.value : null,
  				(heightInput != null) ? heightInput.value : null);
  		}), null, mxResources.get('create'), helpLink);
  		this.showDialog(dlg.container, 340, 254 + dy, true, true);
  		
  		if (widthInput != null)
  		{
  			widthInput.focus();
  			
  			if (mxClient.IS_GC || mxClient.IS_FF || document.documentMode >= 5 || mxClient.IS_QUIRKS)
  			{
  				widthInput.select();
  			}
  			else
  			{
  				document.execCommand('selectAll', false, null);
  			}
  		}
  		else
  		{
  			linkSection.focus();
  		}
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.showRemoteExportDialog = function(btnLabel, helpLink, callback, hideInclude)
  	{
  		var div = document.createElement('div');
  		div.style.whiteSpace = 'nowrap';
  		
  		var hd = document.createElement('h3');
  		mxUtils.write(hd, mxResources.get('image'));
  		hd.style.cssText = 'width:100%;text-align:center;margin-top:0px;margin-bottom:4px';
  		div.appendChild(hd);
  
  		var selection = this.addCheckbox(div, mxResources.get('selectionOnly'), false,
  			this.editor.graph.isSelectionEmpty());
  		var include = (hideInclude) ? null : this.addCheckbox(div, mxResources.get('includeCopyOfMyDiagram'), true);
  		
  		var graph = this.editor.graph;
  		var transparent = (hideInclude) ? null : this.addCheckbox(div, mxResources.get('transparentBackground'),
  				graph.background == mxConstants.NONE || graph.background == null);
  
  		if (transparent != null)
  		{
  			transparent.style.marginBottom = '16px';
  		}
  		
  		var dlg = new CustomDialog(this, div, mxUtils.bind(this, function()
  		{
  			callback(!selection.checked, (include != null) ? include.checked : false,
  				(transparent != null) ? transparent.checked : false);
  		}), null, btnLabel, helpLink);
  		this.showDialog(dlg.container, 300, (hideInclude) ? 100 : 186, true, true);
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.showExportDialog = function(title, embedOption, btnLabel, helpLink, callback,
  		cropOption, defaultInclude, format)
  	{
  		defaultInclude = (defaultInclude != null) ? defaultInclude : true;
  		
  		var div = document.createElement('div');
  		div.style.whiteSpace = 'nowrap';
  		var graph = this.editor.graph;
  		var height = (format == 'jpeg') ? 196 : 300;
  		
  		var hd = document.createElement('h3');
  		mxUtils.write(hd, title);
  		hd.style.cssText = 'width:100%;text-align:center;margin-top:0px;margin-bottom:10px';
  		div.appendChild(hd);
  		
  		mxUtils.write(div, mxResources.get('zoom') + ':');
  		var zoomInput = document.createElement('input');
  		zoomInput.setAttribute('type', 'text');
  		zoomInput.style.marginRight = '16px';
  		zoomInput.style.width = '60px';
  		zoomInput.style.marginLeft = '4px';
  		zoomInput.style.marginRight = '12px';
  		zoomInput.value = this.lastExportZoom || '100%';
  		div.appendChild(zoomInput);
  		
  		mxUtils.write(div, mxResources.get('borderWidth') + ':');
  		var borderInput = document.createElement('input');
  		borderInput.setAttribute('type', 'text');
  		borderInput.style.marginRight = '16px';
  		borderInput.style.width = '60px';
  		borderInput.style.marginLeft = '4px';
  		borderInput.value = this.lastExportBorder || '0';
  		div.appendChild(borderInput);
  		mxUtils.br(div);
  		
  		var transparent = this.addCheckbox(div, mxResources.get('transparentBackground'),
  			graph.background == mxConstants.NONE || graph.background == null, null, null, format != 'jpeg');
  		var selection = this.addCheckbox(div, mxResources.get('selectionOnly'),
  			false, graph.isSelectionEmpty());
  
  		var cb6 = document.createElement('input');
  		cb6.style.marginTop = '16px';
  		cb6.style.marginRight = '8px';
  		cb6.style.marginLeft = '24px';
  		cb6.setAttribute('disabled', 'disabled');
  		cb6.setAttribute('type', 'checkbox');
  
  		if (cropOption)
  		{
  			div.appendChild(cb6);
  			mxUtils.write(div, mxResources.get('crop'));
  			mxUtils.br(div);
  			
  			height += 26;
  			
  			mxEvent.addListener(selection, 'change', function()
  			{
  				if (selection.checked)
  				{
  					cb6.removeAttribute('disabled');
  				}
  				else
  				{
  					cb6.setAttribute('disabled', 'disabled');
  				}
  			});
  		}
  		
  		if (!graph.isSelectionEmpty())
  		{
  			cb6.setAttribute('checked', 'checked');
  			cb6.defaultChecked = true;
  		}
  		
  		var shadow = this.addCheckbox(div, mxResources.get('shadow'), graph.shadowVisible);
  		
  		var cb5 = document.createElement('input');
  		cb5.style.marginTop = '16px';
  		cb5.style.marginRight = '8px';
  		cb5.setAttribute('type', 'checkbox');
  		
  		if (this.isOffline() || !this.canvasSupported)
  		{
  			cb5.setAttribute('disabled', 'disabled');
  		}
  		
  		if (embedOption)
  		{
  			div.appendChild(cb5);
  			mxUtils.write(div, mxResources.get('embedImages'));
  			mxUtils.br(div);
  			
  			height += 26;
  		}
  		
  		var include = this.addCheckbox(div, mxResources.get('includeCopyOfMyDiagram'), defaultInclude, null, null, format != 'jpeg');
  		var hasPages = this.pages != null && this.pages.length > 1;
  		var allPages = this.addCheckbox(div, (hasPages) ? mxResources.get('allPages') : '', hasPages, !hasPages, null, format != 'jpeg');
  		allPages.style.marginLeft = '24px';
  		allPages.style.marginBottom = '16px';
  		
  		if (!hasPages)
  		{
  			allPages.style.visibility = 'hidden';
  		}
  	
  		mxEvent.addListener(include, 'change', function()
  		{
  			if (include.checked && hasPages)
  			{
  				allPages.removeAttribute('disabled');
  			}
  			else
  			{
  				allPages.setAttribute('disabled', 'disabled');
  			}
  		});
  		
  		if (!defaultInclude || !hasPages)
  		{
  			allPages.setAttribute('disabled', 'disabled');
  		}
  		
  		var dlg = new CustomDialog(this, div, mxUtils.bind(this, function()
  		{
  			this.lastExportBorder = borderInput.value;
  			this.lastExportZoom = zoomInput.value;
  			
  			callback(zoomInput.value, transparent.checked, !selection.checked, shadow.checked,
  				include.checked, cb5.checked, borderInput.value, cb6.checked, !allPages.checked);
  		}), null, btnLabel, helpLink);
  		this.showDialog(dlg.container, 340, height, true, true);
  		zoomInput.focus();
  		
  		if (mxClient.IS_GC || mxClient.IS_FF || document.documentMode >= 5 || mxClient.IS_QUIRKS)
  		{
  			zoomInput.select();
  		}
  		else
  		{
  			document.execCommand('selectAll', false, null);
  		}
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.showEmbedImageDialog = function(fn, title, imageLabel, shadowEnabled, helpLink)
  	{
  		var div = document.createElement('div');
  		div.style.whiteSpace = 'nowrap';
  		var graph = this.editor.graph;
  		
  		if (title != null)
  		{
  			var hd = document.createElement('h3');
  			mxUtils.write(hd, title);
  			hd.style.cssText = 'width:100%;text-align:center;margin-top:0px;margin-bottom:4px';
  			div.appendChild(hd);
  		}
  		
  		var fit = this.addCheckbox(div, mxResources.get('fit'), true);
  		var shadow = this.addCheckbox(div, mxResources.get('shadow'),
  			graph.shadowVisible && shadowEnabled, !shadowEnabled);
  		var image = this.addCheckbox(div, imageLabel);
  		var lightbox = this.addCheckbox(div, mxResources.get('lightbox'), true);
  		var editSection = this.addEditButton(div, lightbox);
  		var edit = editSection.getEditInput();
  		
  		var hasLayers = graph.model.getChildCount(graph.model.getRoot()) > 1;
  		var layers = this.addCheckbox(div, mxResources.get('layers'), hasLayers, !hasLayers);
  		layers.style.marginLeft = edit.style.marginLeft;
  		layers.style.marginBottom = '12px';
  		layers.style.marginTop = '8px';
  		
  		mxEvent.addListener(lightbox, 'change', function()
  		{
  			if (lightbox.checked)
  			{
  				if (hasLayers)
  				{
  					layers.removeAttribute('disabled');
  				}
  				
  				edit.removeAttribute('disabled');
  			}
  			else
  			{
  				layers.setAttribute('disabled', 'disabled');
  				edit.setAttribute('disabled', 'disabled');
  			}
  			
  			if (edit.checked && lightbox.checked)
  			{
  				editSection.getEditSelect().removeAttribute('disabled');
  			}
  			else
  			{
  				editSection.getEditSelect().setAttribute('disabled', 'disabled');
  			}
  		});
  		
  		var dlg = new CustomDialog(this, div, mxUtils.bind(this, function()
  		{
  			fn(fit.checked, shadow.checked, image.checked, lightbox.checked,
  				editSection.getLink(), layers.checked);
  		}), null, mxResources.get('embed'), helpLink);
  		this.showDialog(dlg.container, 280, 280, true, true);
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.createEmbedImage = function(fit, shadow, retina, lightbox, edit, layers, fn, err)
  	{
  		var bounds = this.editor.graph.getGraphBounds();
  		
  		function doUpdate(dataUri)
  		{
     			var onclick = ' ';
     			var css = '';
     			
     			// Adds double click handling
  			if (lightbox)
  			{
  				// KNOWN: Message passing does not seem to work in IE11
  				onclick = " onclick=\"(function(img){if(img.wnd!=null&&!img.wnd.closed){img.wnd.focus();}else{var r=function(evt){if(evt.data=='ready'&&evt.source==img.wnd){img.wnd.postMessage(decodeURIComponent(" +
  					"img.getAttribute('src')),'*');window.removeEventListener('message',r);}};window.addEventListener('message',r);img.wnd=window.open('https://www.draw.io/?client=1&lightbox=1" +
  					((edit) ? "&edit=_blank" : "") +
  					((layers) ? '&layers=1' : '') + "');}})(this);\"";
  				css += 'cursor:pointer;';
  			}
     			
  			if (fit)
  			{
  				css += 'max-width:100%;';
  			}
  			
  			var atts = '';
  			
  			if (retina)
  			{
  				atts = ' width="' + Math.round(bounds.width) + '" height="' + Math.round(bounds.height) + '"';
  			}
  			
  			fn('<img src="' + dataUri + '"' + atts + ((css != '') ? ' style="' + css + '"' : '') + onclick + '/>');
  		};
  		
  		if (this.isExportToCanvas())
  		{
  			var scale = 1;
  			var ignoreSelection = true;
  
  			this.exportToCanvas(mxUtils.bind(this, function(canvas)
  		   	{
  	   			var xml = (lightbox) ? this.getFileData(true) : null;
  	   			var data = this.createImageDataUri(canvas, xml, 'png');
  	   			doUpdate(data);
  		   	}), null, null, null, mxUtils.bind(this, function(e)
  		   	{
  		   		err({message: mxResources.get('unknownError')});
  		   	}), null, true, (retina) ? 2 : 1, null, shadow);
  		}
  		else
  		{
  			var data = this.getFileData(true);
  			
  			if (bounds.width * bounds.height <= MAX_AREA && data.length <= MAX_REQUEST_SIZE)
  			{
  				var size = '';
  				
  				if (retina)
  				{
  					size = '&w=' + Math.round(2 * bounds.width) +
  						'&h=' + Math.round(2 * bounds.height);
  				}
  				
  				var embed = (lightbox) ? '1' : '0';
  				var req = new mxXmlRequest(EXPORT_URL, 'format=png' +
  					'&base64=1&embedXml=' + embed + size + '&xml=' +
  					encodeURIComponent(data));
  				
  				// LATER: Updates on each change, add a delay
  				req.send(mxUtils.bind(this, function()
  				{
  					if (req.getStatus() >= 200 && req.getStatus() <= 299)
  					{
  						// Fixes possible "incorrect function" for select() on
  						// DOM node which is no longer in document with IE11
  						doUpdate('data:image/png;base64,' + req.getText());
  					}
  					else
  					{
  						err({message: mxResources.get('unknownError')});
  					}
  				}));
  			}
  			else
  			{
  				err({message: mxResources.get('drawingTooLarge')});
  			}
  		}
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.createEmbedSvg = function(fit, shadow, image, lightbox, edit, layers, fn)
  	{
  		var svgRoot = this.editor.graph.getSvg();
  		
  		// Keeps hashtag links on same page
  		var links = svgRoot.getElementsByTagName('a');
  		
  		if (links != null)
  		{
  			for (var i = 0; i < links.length; i++)
  			{
  				var href = links[i].getAttribute('href');
  				
  				if (href != null && href.charAt(0) == '#' &&
  					links[i].getAttribute('target') == '_blank')
  				{
  					links[i].removeAttribute('target');
  				}
  			}
  		}
  		
  		if (lightbox)
  		{
  			svgRoot.setAttribute('content', this.getFileData(true));
  		}
  		
  		// Adds shadow filter
  		if (shadow)
  		{
  			this.editor.graph.addSvgShadow(svgRoot);
  		}
  		
  		// SVG inside image tag
  		if (image)
  		{
     			var onclick = ' ';
     			var css = '';
     			
     			// Adds double click handling
  			if (lightbox)
  			{
  				// KNOWN: Message passing does not seem to work in IE11
  				onclick = "onclick=\"(function(img){if(img.wnd!=null&&!img.wnd.closed){img.wnd.focus();}else{var r=function(evt){if(evt.data=='ready'&&evt.source==img.wnd){img.wnd.postMessage(decodeURIComponent(" +
  					"img.getAttribute('src')),'*');window.removeEventListener('message',r);}};window.addEventListener('message',r);img.wnd=window.open('https://www.draw.io/?client=1&lightbox=1" +
  					((edit) ? "&edit=_blank" : "") + ((layers) ? '&layers=1' : '') + "');}})(this);\"";
  				css += 'cursor:pointer;';
  			}
     			
  			if (fit)
  			{
  				css += 'max-width:100%;';
  			}
     			
     			// Images inside IMG don't seem to work so embed them all
  			this.convertImages(svgRoot, mxUtils.bind(this, function(svgRoot)
  			{
  				fn('<img src="' + this.createSvgDataUri(mxUtils.getXml(svgRoot)) + '"' +
  					((css != '') ? ' style="' + css + '"' : '') + onclick + '/>');
  			}));
  		}
  		else
  		{
  			var css = '';
  			
  			// Adds double click handling
  			if (lightbox)
  			{
  				// KNOWN: Message passing does not seem to work in IE11
  				var js = "(function(svg){var src=window.event.target||window.event.srcElement;" +
  					// Ignores link events
  					"while (src!=null&&src.nodeName.toLowerCase()!='a'){src=src.parentNode;}if(src==null)" +
  					// Focus existing lightbox
  					"{if(svg.wnd!=null&&!svg.wnd.closed){svg.wnd.focus();}else{var r=function(evt){" +
  					// Message handling
  					"if(evt.data=='ready'&&evt.source==svg.wnd){svg.wnd.postMessage(decodeURIComponent(" +
  					"svg.getAttribute('content')),'*');window.removeEventListener('message',r);}};" +
  					"window.addEventListener('message',r);" +
  					// Opens lightbox window
  					"svg.wnd=window.open('https://www.draw.io/?client=1&lightbox=1" +
  					((edit) ? "&edit=_blank" : "") + ((layers) ? '&layers=1' : '') + "');}}})(this);";
  				svgRoot.setAttribute('onclick', js);
  				css += 'cursor:pointer;';
  			}
  			
  			// Adds responsive size
  			if (fit)
  			{
  				var w = parseInt(svgRoot.getAttribute('width'));
  				var h = parseInt(svgRoot.getAttribute('height'));
  				svgRoot.setAttribute('viewBox', '0 0 ' + w + ' ' + h);
  				css += 'max-width:100%;max-height:' + h + 'px;';
  				svgRoot.removeAttribute('height');
  			}
  			
  			if (css != '')
  			{
  				svgRoot.setAttribute('style', css);
  			}
  			
  			fn(mxUtils.getXml(svgRoot));
  		}
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.timeSince = function(date)
  	{
  	    var seconds = Math.floor((new Date() - date) / 1000);
  	    var interval = Math.floor(seconds / 31536000);
  
  	    if (interval > 1)
  	    {
  	        return interval + ' ' + mxResources.get('years');
  	    }
  	    
  	    interval = Math.floor(seconds / 2592000);
  	    
  	    if (interval > 1)
  	    {
  	        return interval + ' ' + mxResources.get('months');
  	    }
  	    
  	    interval = Math.floor(seconds / 86400);
  	    
  	    if (interval > 1)
  	    {
  	        return interval + ' ' + mxResources.get('days');
  	    }
  	    
  	    interval = Math.floor(seconds / 3600);
  	    
  	    if (interval > 1)
  	    {
  	        return interval + ' ' + mxResources.get('hours');
  	    }
  	    
  	    interval = Math.floor(seconds / 60);
  	    
  	    if (interval > 1)
  	    {
  	        return interval + ' ' + mxResources.get('minutes');
  	    }
  	    
  	    if (interval == 1)
  	    {
  	        return interval + ' ' + mxResources.get('minute');
  	    }
  	    
  	    return null;
  	};
  
  	/**
  	 * Converts math in the given SVG
  	 */
  	EditorUi.prototype.convertMath = function(graph, svgRoot, fixPosition, callback)
  	{
  		if (graph.mathEnabled && typeof(MathJax) !== 'undefined' && typeof(MathJax.Hub) !== 'undefined')
  		{
  	      	// Temporarily attaches to DOM for rendering
  			// FIXME: If adding svgRoot to body, the text
  			// value of the math is appended, if not
  			// added to DOM then LaTeX does not work.
  			// This must be fixed to enable client-side export
  			// if math is enabled.
  //			document.body.appendChild(svgRoot);
  			Editor.MathJaxRender(svgRoot);
  	      
  			window.setTimeout(mxUtils.bind(this, function()
  			{
  				MathJax.Hub.Queue(mxUtils.bind(this, function ()
  				{
  					// Removes from DOM
  //					svgRoot.parentNode.removeChild(svgRoot);
  					
  					callback();
  				}));
  			}), 0);
  		}
  		else
  		{
  			callback();
  		}
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.decodeNodeIntoGraph = function(node, graph)
  	{
  		if (node != null)
  		{
  			var diagramNode = null;
  			
  			if (node.nodeName == 'diagram')
  			{
  				diagramNode = node;
  			}
  			else if (node.nodeName == 'mxfile')
  			{
  				var diagrams = node.getElementsByTagName('diagram');
  
  				if (diagrams.length > 0)
  				{
  					diagramNode = diagrams[0];
  					var graphGetGlobalVariable = graph.getGlobalVariable;
  					
  					graph.getGlobalVariable = function(name)
  					{
  						if (name == 'page')
  						{
  							return diagramNode.getAttribute('name') || mxResources.get('pageWithNumber', [1])
  						}
  						else if (name == 'pagenumber')
  						{
  							return 1;
  						}
  						
  						return graphGetGlobalVariable.apply(this, arguments);
  					};
  				}
  			}
  			
  			if (diagramNode != null)
  			{
  				var tmp = graph.decompress(mxUtils.getTextContent(diagramNode));
  				
  				if (tmp != null && tmp.length > 0)
  				{
  					node = mxUtils.parseXml(tmp).documentElement;
  				}
  			}
  		}
  		
  		// Hack to decode XML into temp graph via editor
  		var prev = this.editor.graph;
  		
  		try
  		{
  			this.editor.graph = graph;
  			this.editor.setGraphXml(node);	
  		}
  		catch (e)
  		{
  			// ignore
  		}
  		finally
  		{
  			this.editor.graph = prev;
  		}
  		
  		return node;
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.getEmbeddedPng = function(success, error, optionalData)
  	{
  		var graph = this.editor.graph;
  		var diagramData = null;
  		
  		// Exports PNG for given optional data
  		if (optionalData != null && optionalData.length > 0)
  		{
  			graph = this.createTemporaryGraph(this.editor.graph.getStylesheet());
  			document.body.appendChild(graph.container);
  			this.decodeNodeIntoGraph(this.editor.extractGraphModel(
  				mxUtils.parseXml(optionalData).documentElement, true), graph);
  			diagramData = optionalData;
  		}
  		// Exports PNG for first page while other page is showing
  		else if (this.pages != null && this.currentPage != this.pages[0])
  		{
  			graph = this.createTemporaryGraph(graph.getStylesheet());
  			var graphGetGlobalVariable = graph.getGlobalVariable;
  			var page = this.pages[0];
  	
  			graph.getGlobalVariable = function(name)
  			{
  				if (name == 'page')
  				{
  					return page.getName();
  				}
  				else if (name == 'pagenumber')
  				{
  					return 1;
  				}
  				
  				return graphGetGlobalVariable.apply(this, arguments);
  			};
  	
  			document.body.appendChild(graph.container);
  			graph.model.setRoot(page.root);
  		}
  	
  	   	this.exportToCanvas(mxUtils.bind(this, function(canvas)
  	   	{
  	   		try
  	   		{
  	   			if (diagramData == null)
  	   			{
  	   				diagramData = this.getFileData(true);
  	   			}
  	   			
  	   	   	    var data = canvas.toDataURL('image/png');
     	   	   		data = this.writeGraphModelToPng(data, 'zTXt', 'mxGraphModel',
     	   	   			atob(this.editor.graph.compress(diagramData)));
     	   	   		success(data.substring(data.lastIndexOf(',') + 1));
  
  				// Removes temporary graph from DOM
     	   	   		if (graph != this.editor.graph)
  				{
  					graph.container.parentNode.removeChild(graph.container);
  				}
  	   		}
  	   		catch (e)
  	   		{
  	   			if (error != null)
  	   			{
  	   				error(e);
  	   			}
  	   		}
  	   	}), null, null, null, mxUtils.bind(this, function(e)
  	   	{
  	   		if (error != null)
     			{
     				error(e);
     			}
  	   	}), null, null, null, null, graph.shadowVisible, null, graph);
  	}
  	
  	/**
  	 * Returns the SVG of the diagram with embedded XML. If a callback function is
  	 * used, the images are converted to data URIs.
  	 */
  	EditorUi.prototype.getEmbeddedSvg = function(xml, graph, url, noHeader, callback, ignoreSelection, redirect)
  	{
  		var bg = graph.background;
  		
  		if (bg == mxConstants.NONE)
  		{
  			bg = null;
  		}
  
  		// Sets or disables alternate text for foreignObjects. Disabling is needed
  		// because PhantomJS seems to ignore switch statements and paint all text.
  		var svgRoot = graph.getSvg(bg, null, null, null, null, ignoreSelection);
  
  		if (xml != null)
  		{
  			svgRoot.setAttribute('content', xml);
  		}
  		
  		if (url != null)
  		{
  			svgRoot.setAttribute('resource', url);
  		}
  
  		// LATER: Click on SVG content to start editing
  //		if (redirect != null)
  //		{
  //			// TODO: Ignore anchor tag source for click event
  //			svgRoot.setAttribute('style', 'cursor:pointer;');
  //			svgRoot.setAttribute('onclick', 'window.location.href=\'' + redirect + '\';'); 
  //		}
  
  		if (callback != null)
  		{
  			this.convertImages(svgRoot, mxUtils.bind(this, function(svgRoot)
  			{
  				callback(((!noHeader) ? '<?xml version="1.0" encoding="UTF-8"?>\n' +
  					'<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n' : '') +
  					mxUtils.getXml(svgRoot));
  			}));
  		}
  		else
  		{
  			return ((!noHeader) ? '<?xml version="1.0" encoding="UTF-8"?>\n' +
  				'<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">\n' : '') +
  				mxUtils.getXml(svgRoot);
  		}
  	};
  	
  	/**
  	 *
  	 */
  	EditorUi.prototype.exportImage = function(scale, transparentBackground, ignoreSelection, addShadow, editable, border, noCrop, currentPage, format)
  	{
  		format = (format != null) ? format : 'png';
  		
  		if (this.spinner.spin(document.body, mxResources.get('exporting')))
  		{
  			var selectionEmpty = this.editor.graph.isSelectionEmpty();
  			ignoreSelection = (ignoreSelection != null) ? ignoreSelection : selectionEmpty;
  			
  			// Caches images
  			if (this.thumbImageCache == null)
  			{
  				this.thumbImageCache = new Object();
  			}
  			
  			try
  			{
  			   	this.exportToCanvas(mxUtils.bind(this, function(canvas)
  			   	{
  			   		this.spinner.stop();
  			   		
  			   		try
  			   		{
  			   			this.saveCanvas(canvas, (editable) ? this.getFileData(true, null,
  			   				null, null, ignoreSelection, currentPage) : null, format);
  			   		}
  			   		catch (e)
  			   		{
  			   			// Fallback to server-side image export
  			   			if (e.message == 'Invalid image')
  			   			{
  			   				this.downloadFile(format);
  			   			}
  			   			else
  			   			{
  				   			this.handleError(e);
  			   			}
  			   		}
  			   	}), null, this.thumbImageCache, null, mxUtils.bind(this, function(e)
  			   	{
  			   		this.spinner.stop();
  			   		this.handleError(e);
  			   	}), null, ignoreSelection, scale || 1, transparentBackground,
  			   		addShadow, null, null, border, noCrop);
  			}
  			catch (e)
  			{
  				this.spinner.stop();
  				this.handleError(e);
  			}
  		}
  	};
  
  	/**
  	 * For the fontCSS to be applied when rendering images on canvas, the actual
  	 * font data must be made available via a data URI encoding of the file.
  	 */
      EditorUi.prototype.loadFonts = function(then)
      {
          if (this.editor.fontCss != null && this.editor.resolvedFontCss == null)
          {
              var parts = this.editor.fontCss.split('url(');
              var waiting = 0;
              var fonts = {};
  
              // Strips leading and trailing quotes and spaces
              function trimString(str)
              {
                  return str.replace(new RegExp("^[\\s\"']+", "g"), "").replace(new RegExp("[\\s\"']+$", "g"), "");
              };
              
              var finish = mxUtils.bind(this, function()
              {
                  if (waiting == 0)
                  {
                      // Constructs string
                      var result = [parts[0]];
                      
                      for (var j = 1; j < parts.length; j++)
                      {
                          var idx = parts[j].indexOf(')');
                          result.push('url("');
                          result.push(fonts[trimString(parts[j].substring(0, idx))]);
                          result.push('"' + parts[j].substring(idx));
                      }
                      
                      this.editor.resolvedFontCss = result.join('');
                      then();
                  }
              });
              
              if (parts.length > 0)
              {
                  for (var i = 1; i < parts.length; i++)
                  {
                      var idx = parts[i].indexOf(')');
                      var format = null;
                      
                      // Checks if there is a format directive
                      var fmtIdx = parts[i].indexOf('format(', idx);
                      
                      if (fmtIdx > 0)
                      {
                          format = trimString(parts[i].substring(fmtIdx + 7, parts[i].indexOf(')', fmtIdx)));
                      }
      
                      (mxUtils.bind(this, function(url)
                      {
                          if (fonts[url] == null)
                          {
                              // Mark font es being fetched and fetch it
                              fonts[url] = url;
                              waiting++;
                              
                              var mime = 'application/x-font-ttf';
                              
                              // See https://stackoverflow.com/questions/2871655/proper-mime-type-for-fonts
                              if (format == 'svg' || /(\.svg)($|\?)/i.test(url))
                              {
                                  mime = 'image/svg+xml';
                              }
                              else if (format == 'otf' || format == 'embedded-opentype' || /(\.otf)($|\?)/i.test(url))
                              {
                                  mime = 'application/x-font-opentype';
                              }
                              else if (format == 'woff' || /(\.woff)($|\?)/i.test(url))
                              {
                                  mime = 'application/font-woff';
                              }
                              else if (format == 'woff2' || /(\.woff2)($|\?)/i.test(url))
                              {
                                  mime = 'application/font-woff2';
                              }
                              else if (format == 'eot' || /(\.eot)($|\?)/i.test(url))
                              {
                                  mime = 'application/vnd.ms-fontobject';
                              }
                              else if (format == 'sfnt' || /(\.sfnt)($|\?)/i.test(url))
                              {
                                  mime = 'application/font-sfnt';
                              }
                              
                              var realUrl = url;
                              
                              if ((/^https?:\/\//.test(realUrl)) && !this.isCorsEnabledForUrl(realUrl))
                              {
                                  realUrl = PROXY_URL + '?url=' + encodeURIComponent(url);
                              }
  
                              // LATER: Remove cache-control header
                              this.loadUrl(realUrl, mxUtils.bind(this, function(uri)
                              {
                                  fonts[url] = uri;
                                  waiting--;
                                  finish();
                              }), mxUtils.bind(this, function(err)
                              {
                                  // LATER: handle error
                                  waiting--;
                                  finish();
                              }), true, null, 'data:' + mime + ';charset=utf-8;base64,');
                          }
                      }))(trimString(parts[i].substring(0, idx)), format);
                  }
              }
          }
          else
          {
              then();
          }
      };
  	
  	/**
  	 *
  	 */
  	EditorUi.prototype.exportToCanvas = function(callback, width, imageCache, background, error, limitHeight,
  		ignoreSelection, scale, transparentBackground, addShadow, converter, graph, border, noCrop)
  	{
  		limitHeight = (limitHeight != null) ? limitHeight : true;
  		ignoreSelection = (ignoreSelection != null) ? ignoreSelection : true;
  		graph = (graph != null) ? graph : this.editor.graph;
  		border = (border != null) ? border : 0;
  		
  		var bg = (transparentBackground) ? null : graph.background;
  		
  		if (bg == mxConstants.NONE)
  		{
  			bg = null;
  		}
  		
  		if (bg == null)
  		{
  			bg = background;
  		}
  		
  		// Handles special case where background is null but transparent is false
  		if (bg == null && transparentBackground == false)
  		{
  			bg = this.editor.graph.defaultPageBackgroundColor;
  		}
  		
  		this.convertImages(graph.getSvg(bg, null, null, noCrop, null, ignoreSelection), mxUtils.bind(this, function(svgRoot)
  		{
  			var img = new Image();
  			
  			img.onload = mxUtils.bind(this, function()
  			{
  		   		try
  		   		{
  		   			var canvas = document.createElement('canvas');
  					var w = parseInt(svgRoot.getAttribute('width'));
  					var h = parseInt(svgRoot.getAttribute('height'));
  					scale = (scale != null) ? scale : 1;
  					
  					if (width != null)
  					{
  						scale = (!limitHeight) ? width / w : Math.min(1, Math.min((width * 3) / (h * 4), width / w));
  					}
  					
  					w = Math.ceil(scale * w) + 2 * border;
  					h = Math.ceil(scale * h) + 2 * border;
  					
  					canvas.setAttribute('width', w);
  			   		canvas.setAttribute('height', h);
  			   		var ctx = canvas.getContext('2d');
  			   		
  			   		if (bg != null)
  			   		{
  			   			ctx.beginPath();
  						ctx.rect(0, 0, w, h);
  						ctx.fillStyle = bg;
  						ctx.fill();
  			   		}
  
  			   		ctx.scale(scale, scale);
  			   		
  			   		// Workaround for broken data URI images in Safari on first export
  			   		if (mxClient.IS_SF)
  			   		{			   		
  						window.setTimeout(function()
  						{
  							ctx.drawImage(img, border / scale, border / scale);
  							callback(canvas);
  						}, 0);
  			   		}
  			   		else
  			   		{
  			   			ctx.drawImage(img, border / scale, border / scale);
  			   			callback(canvas);
  			   		}
  		   		}
  		   		catch (e)
  		   		{
  		   			if (error != null)
  					{
  						error(e);
  					}
  		   		}
  			});
  			
  			img.onerror = function(e)
  			{
  				//console.log('img', e, img.src);
  				
  				if (error != null)
  				{
  					error(e);
  				}
  			};
  
  			try
  			{
  				if (addShadow)
  				{
  					this.editor.graph.addSvgShadow(svgRoot);
  				}
  				
  				var done = mxUtils.bind(this, function()
  				{
  					if (this.editor.resolvedFontCss != null)
  					{
  						var st = document.createElement('style');
  						st.setAttribute('type', 'text/css');
  						st.innerHTML = this.editor.resolvedFontCss;
  						
  						// Must be in defs section for FF to work
  						var defs = svgRoot.getElementsByTagName('defs');
  						defs[0].appendChild(st);
  					}
  					
  					this.convertMath(graph, svgRoot, true, mxUtils.bind(this, function()
  					{
  						img.src = this.createSvgDataUri(mxUtils.getXml(svgRoot));
  					}));
  				});
  				
  				this.loadFonts(done);
  			}
  			catch (e)
  			{
  				//console.log('src', e, img.src);
  				
  				if (error != null)
  				{
  					error(e);
  				}
  			}
  		}), imageCache, converter);
  	};
  
  	/**
  	 * Converts all images in the SVG output to data URIs for immediate rendering
  	 */
  	EditorUi.prototype.createImageUrlConverter = function()
  	{
  		var converter = new mxUrlConverter();
  		converter.updateBaseUrl();
  
  		// Extends convert to avoid CORS using an image proxy server where needed
  		var convert = converter.convert;
  		var self = this;
  		
  		converter.convert = function(src)
  		{
  			if (src != null)
  			{
  				var remote = src.substring(0, 7) == 'http://' || src.substring(0, 8) == 'https://';
  				
  				if (remote && !navigator.onLine)
  				{
  					src = self.svgBrokenImage.src;
  				}
  				else if (remote && src.substring(0, converter.baseUrl.length) != converter.baseUrl &&
  						(!self.crossOriginImages || !self.isCorsEnabledForUrl(src)))
  				{
  					src = PROXY_URL + '?url=' + encodeURIComponent(src);
  				}
  				else if (src.substring(0, 19) != 'chrome-extension://')
  				{
  					src = convert.apply(this, arguments);
  				}
  			}
  			
  			return src;
  		};
  		
  		return converter;
  	};
  	
  	/**
  	 * Converts all images in the SVG output to data URIs for immediate rendering
  	 */
  	EditorUi.prototype.convertImages = function(svgRoot, callback, imageCache, converter)
  	{
  		// Converts images to data URLs for immediate painting
  		if (converter == null)
  		{
  			converter = this.createImageUrlConverter();
  		}
  		
  		// Barrier for asynchronous image loading
  		var counter = 0;
  		
  		function inc()
  		{
  			counter++;
  		};
  		
  		function dec()
  		{
  			counter--;
  			
  			if (counter == 0)
  			{
  				callback(svgRoot);
  			}
  		};
  
  		var cache = imageCache || new Object();
  		
  		var convertImages = mxUtils.bind(this, function(tagName, srcAttr)
  		{
  			var images = svgRoot.getElementsByTagName(tagName);
  			
  			for (var i = 0; i < images.length; i++)
  			{
  				(mxUtils.bind(this, function(img)
  				{
  					var src = converter.convert(img.getAttribute(srcAttr));
  		        	
  					// Data URIs are pass-through
  					if (src != null && src.substring(0, 5) != 'data:')
  					{
  						var tmp = cache[src];
  						
  						if (tmp == null)
  						{
  							inc();
  							
  							this.convertImageToDataUri(src, function(uri)
  							{
  								if (uri != null)
  								{
  									cache[src] = uri;
  									img.setAttribute(srcAttr, uri);
  								}
  								
  								dec();
  							});
  						}
  						else
  						{
  							img.setAttribute(srcAttr, tmp);
  						}
  					}
  					else if (src != null)
  					{
  						img.setAttribute(srcAttr, src);
  					}
  				}))(images[i]);
  			}
  		});
  		
  		// Converts all known image tags in output
  		// LATER: Add support for images in CSS
  		convertImages('image', 'xlink:href');
  		convertImages('img', 'src');
  		
  		// All from cache or no images
  		if (counter == 0)
  		{
  			callback(svgRoot);
  		}
  	};
  
  	/**
  	 * Checks if the client is authorized and calls the next step.
  	 */
  	EditorUi.prototype.loadUrl = function(url, success, error, forceBinary, retry, dataUriPrefix)
  	{
  		try
  		{
  			var binary = forceBinary || /(\.png)($|\?)/i.test(url) ||
  				/(\.jpe?g)($|\?)/i.test(url) || /(\.gif)($|\?)/i.test(url);
  			retry = (retry != null) ? retry : true;
  			
  			var fn = mxUtils.bind(this, function()
  			{
  				mxUtils.get(url, mxUtils.bind(this, function(req)
  				{
  					if (req.getStatus() >= 200 && req.getStatus() <= 299)
  					{
  				    	if (success != null)
  				    	{
  					    	var data = req.getText();
  					    	
  				    		// Returns PNG as base64 encoded data URI
  							if (binary)
  							{
  								// NOTE: This requires BinaryToArray VB script in the page
  								if ((document.documentMode == 9 || document.documentMode == 10) &&
  									typeof window.mxUtilsBinaryToArray !== 'undefined')
  								{
  									var bin = mxUtilsBinaryToArray(req.request.responseBody).toArray();
  									var tmp = new Array(bin.length);
  									
  									for (var i = 0; i < bin.length; i++)
  									{
  										tmp[i] = String.fromCharCode(bin[i]);
  									}
  									
  									data = tmp.join('');
  								}
  								
  								// LATER: Could be JPG but modern browsers
  								// ignore the mime type in the data URI
  								dataUriPrefix = (dataUriPrefix != null) ? dataUriPrefix : 'data:image/png;base64,';
  								data = dataUriPrefix + this.base64Encode(data);
  							}
  				    		
  				    		success(data);
  				    	}
  					}
  					else if (error != null)
  			    	{
  			    		error({code: App.ERROR_UNKNOWN}, req);
  			    	}
  				}), function()
  				{
  			    	if (error != null)
  			    	{
  			    		error({code: App.ERROR_UNKNOWN});
  			    	}
  				}, binary, this.timeout, function()
  			    {
  				    if (retry && error != null)
  					{
  						error({code: App.ERROR_TIMEOUT, retry: fn});
  					}
  			    });
  			});
  			
  			fn();
  		}
  		catch (e)
  		{
  			if (error != null)
  			{
  				error(e);
  			}
  		}
  	};
  
  	/**
  	 * Returns true if the given URL is known to have CORS headers.
  	 */
  	EditorUi.prototype.isCorsEnabledForUrl = function(url)
  	{
  		if (urlParams['cors'] != null && this.corsRegExp == null)
  		{
  			this.corsRegExp = new RegExp(decodeURIComponent(urlParams['cors']));
  		}
  		
  		return (this.corsRegExp != null && this.corsRegExp.test(url)) ||
  			url.substring(0, 34) === 'https://raw.githubusercontent.com/' ||
  			url.substring(0, 23) === 'https://cdn.rawgit.com/' ||
  			url.substring(0, 19) === 'https://rawgit.com/' ||
  			/^https?:\/\/[^\/]*\.iconfinder.com\//.test(url) ||
  			/^https?:\/\/[^\/]*\.draw\.io\/proxy/.test(url) ||
  			/^https?:\/\/[^\/]*\.github\.io\//.test(url);
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.convertImageToDataUri = function(url, callback)
  	{
  		if (/(\.svg)$/i.test(url))
  		{
  			mxUtils.get(url, mxUtils.bind(this, function(req)
  			{
  				callback(this.createSvgDataUri(req.getText()));
  			}),
  			function()
  			{
  				callback(this.svgBrokenImage.src);
  			});
  		}
  		else
  		{
  		    var img = new Image();
  		    var self = this;
  		    
  		    if (this.crossOriginImages)
  	    	{
  			    img.crossOrigin = 'anonymous';
  		    }
  		    
  		    img.onload = function()
  		    {
  		        var canvas = document.createElement('canvas');
  		        var ctx = canvas.getContext('2d');
  		        canvas.height = img.height;
  		        canvas.width = img.width;
  		        ctx.drawImage(img, 0, 0);
  		        
  		        try
  		        {
  	        		callback(canvas.toDataURL());
  		        }
  		        catch (e)
  		        {
  	        		callback(self.svgBrokenImage.src);
  		        }
  		    };
  		    
  		    img.onerror = function()
  		    {
  	    		callback(self.svgBrokenImage.src);
  		    };
  		    
  		    img.src = url;
  		}
  	};
  	
  	/**
  	 * Handling drag and drop and import.
  	 */
  
  	/**
  	 * Imports the given XML into the existing diagram.
  	 */
  	EditorUi.prototype.importXml = function(xml, dx, dy, crop, noErrorHandling)
  	{
  		dx = (dx != null) ? dx : 0;
  		dy = (dy != null) ? dy : 0;
  		var cells = []
  		
  		try
  		{
  			var graph = this.editor.graph;
  	
  			if (xml != null && xml.length > 0)
  			{
  				var doc = mxUtils.parseXml(xml);
  				
  				// Checks for mxfile with multiple pages
  				var node = this.editor.extractGraphModel(doc.documentElement, this.pages != null);
  				
  				if (node != null && node.nodeName == 'mxfile' && this.pages != null)
  				{
  					var diagrams = node.getElementsByTagName('diagram');
  
  					if (diagrams.length == 1)
  					{
  						node = mxUtils.parseXml(graph.decompress(mxUtils.getTextContent(diagrams[0]))).documentElement;
  					}
  					else if (diagrams.length > 1)
  					{
  						// Adds pages
  						graph.model.beginUpdate();
  						try
  						{
  							for (var i = 0; i < diagrams.length; i++)
  							{
  								// Imported pages must obtain a new ID
  								diagrams[i].removeAttribute('id');
  								
  								var page = this.updatePageRoot(new DiagramPage(diagrams[i]));
  								var index = this.pages.length;
  								
  								// Checks for invalid page names
  								if (page.getName() == null)
  								{
  									page.setName(mxResources.get('pageWithNumber', [index + 1]));
  								}
  								
  								graph.model.execute(new ChangePage(this, page, page, index));
  							}
  						}
  						finally
  						{
  							graph.model.endUpdate();
  						}
  					}
  				}
  				
  				if (node != null && node.nodeName === 'mxGraphModel')
  				{
  					cells = graph.importGraphModel(node, dx, dy, crop);
  				}
  			}
  		}
  		catch (e)
  		{
  			if (!noErrorHandling)
  			{
  				this.handleError(e, mxResources.get('invalidOrMissingFile'));
  			}
  			
  			throw e;
  		}
  		
  		return cells;
  	};
  	
  	/**
  	 * Returns true for VSD and VSS files.
  	 */
  	EditorUi.prototype.isRemoteVisioFormat = function(filename)
  	{
  		return /(\.vsd)($|\?)/i.test(filename) || /(\.vss)($|\?)/i.test(filename);
  	};
  	
  	/**
  	 * Imports the given Visio file
  	 */
  	EditorUi.prototype.importVisio = function(file, done, onerror, filename)
  	{
  		filename = (filename != null) ? filename : file.name; 
  
  		onerror = (onerror != null) ? onerror : mxUtils.bind(this, function(e)
  		{
  			this.handleError(e);
  		});
  		
  		var delayed = mxUtils.bind(this, function()
  		{
  			this.loadingExtensions = false;
  			
  			if (this.doImportVisio)
  			{
  				if (this.isRemoteVisioFormat(filename) && VSD_CONVERT_URL != null) 
  				{
  					var formData = new FormData();
  					formData.append('file1', file, filename);
  
  					var xhr = new XMLHttpRequest();
  					xhr.open('POST', VSD_CONVERT_URL);
  					xhr.responseType = 'blob';
  					
  					xhr.onreadystatechange = mxUtils.bind(this, function()
  					{
  						if (xhr.readyState == 4)
  						{	
  							if (xhr.status >= 200 && xhr.status <= 299)
  							{
  								try
  								{
  									//add back the file name
  									xhr.response.name = filename;
  									this.doImportVisio(xhr.response, done, onerror);
  								}
  								catch (e)
  								{
  									onerror(e);
  								}
  							}
  							else
  							{
  								onerror({});
  							}
  						}
  					});
  					
  					xhr.send(formData);
  				}
  				else
  				{
  					try
  					{
  						this.doImportVisio(file, done, onerror);
  					}
  					catch (e)
  					{
  						onerror(e);
  					}
  				}
  			}
  		});
  		
  		if (!this.doImportVisio && !this.loadingExtensions && !this.isOffline())
  		{
  			this.loadingExtensions = true;
  			mxscript('js/extensions.min.js', delayed);
  		}
  		else
  		{
  			delayed();
  		}
  	};
  
  	/**
  	 * Export the diagram to VSDX
  	 */
  	EditorUi.prototype.exportVisio = function()
  	{
  		var delayed = mxUtils.bind(this, function()
  		{
  			this.loadingExtensions = false;
  			
  			if (typeof VsdxExport  !== 'undefined')
  			{
  				try
  				{
  					new VsdxExport(this).exportCurrentDiagrams();
  				}
  				catch (e)
  				{
  					this.handleError(e);
  				}
  			}
  		});
  		
  		if (typeof VsdxExport === 'undefined' && !this.loadingExtensions && !this.isOffline())
  		{
  			this.loadingExtensions = true;
  			mxscript('js/extensions.min.js', delayed);
  		}
  		else
  		{
  			delayed();
  		}
  	};
  	
  	/**
  	 * Imports the given Lucidchart data.
  	 */
  	EditorUi.prototype.convertLucidChart = function(data, success, error)
  	{
  		var delayed = mxUtils.bind(this, function()
  		{
  			this.loadingExtensions = false;
  			
  			// Checks for signature method
  			if (typeof window.LucidImporter !== 'undefined')
  			{
  				try
  				{
  					success(LucidImporter.importState(JSON.parse(data)));
  				}
  				catch (e)
  				{
  					error(e);
  				}
  			}
  			else
  			{
  				error({message: mxResources.get('serviceUnavailableOrBlocked')});
  			}
  		});
  		
  		if (typeof window.LucidImporter === 'undefined' &&
  			!this.loadingExtensions && !this.isOffline())
  		{
  			this.loadingExtensions = true;
  			
  			if (urlParams['dev'] == '1')
  			{
  				mxscript('js/diagramly/Extensions.js', delayed);
  			}
  			else
  			{
  				mxscript('js/extensions.min.js', delayed);
  			}
  		}
  		else
  		{
  			// Async needed for selection
  			window.setTimeout(delayed, 0);
  		}
  	};
  
  	/**
  	 * Inserts the given text as a preformatted HTML text.
  	 */
  	EditorUi.prototype.insertAsPreText = function(text, x, y)
  	{
  		var graph = this.editor.graph;
  		var cell = null;
  		
  		graph.getModel().beginUpdate();
  		try
  		{
  			cell = graph.insertVertex(null, null, '<pre>' + text + '</pre>',
  				x, y, 1, 1, 'text;html=1;align=center;verticalAlign=middle;');
  			graph.updateCellSize(cell, true);
  		}
  		finally
  		{
  			graph.getModel().endUpdate();
  		}
  
  		return cell;
  	};
  
  	/**
  	 * Imports the given XML into the existing diagram.
  	 * TODO: Make this function asynchronous
  	 */
  	EditorUi.prototype.insertTextAt = function(text, dx, dy, html, asImage, crop, resizeImages)
  	{
  		crop = (crop != null) ? crop : true;
  		resizeImages = (resizeImages != null) ? resizeImages : true;
  		
  		// Handles special case for Gliffy data which requires async server-side for parsing
  		if (text != null)
  		{
  			if (Graph.fileSupport && !this.isOffline() && new XMLHttpRequest().upload && this.isRemoteFileFormat(text))
  			{
  				// Fixes possible parsing problems with ASCII 160 (non-breaking space)
  				this.parseFile(new Blob([text.replace(/\s+/g,' ')], {type: 'application/octet-stream'}), mxUtils.bind(this, function(xhr)
  				{
  					if (xhr.readyState == 4 && xhr.status >= 200 && xhr.status <= 299)
  					{
  						this.editor.graph.setSelectionCells(this.insertTextAt(
  							xhr.responseText, dx, dy, true));
  					}
  				}));
  				
  				// Returns empty cells array as it is aysynchronous
  				return [];
  			}
  			// Handles special case of data URI which requires async loading for finding size
  			else if (text.substring(0, 5) == 'data:' || (!this.isOffline() &&
  				(asImage || (/\.(gif|jpg|jpeg|tiff|png|svg)$/i).test(text))))
  			{
  				var graph = this.editor.graph;
  				
  				// Checks for embedded XML in PNG
  				if (text.substring(0, 22) == 'data:image/png;base64,')
  				{
  					var xml = this.extractGraphModelFromPng(text);
  					var result = this.importXml(xml, dx, dy, crop, true); 
  					
  					if (result.length > 0)
  					{
  						return result;
  					}
  				}
  				
  				// Tries to extract embedded XML from SVG data URI
  				if (text.substring(0, 19) == 'data:image/svg+xml;')
  				{
  					try
  					{
  						var xml = null;
  						
  						if (text.substring(0, 26) == 'data:image/svg+xml;base64,')
  						{
  							xml = text.substring(text.indexOf(',') + 1);
  							xml = (window.atob && !mxClient.IS_SF) ? atob(xml) : Base64.decode(xml, true);
  						}
  						else
  						{
  							xml = decodeURIComponent(text.substring(text.indexOf(',') + 1));
  						}
  						
  						var result = this.importXml(xml, dx, dy, crop, true); 
  	
  						if (result.length > 0)
  						{
  							return result;
  						}
  					}
  					catch (e)
  					{
  						// Ignore
  					}
  				}
  				
  				this.loadImage(text, mxUtils.bind(this, function(img)
  				{
  					if (text.substring(0, 5) == 'data:')
  					{
  						this.resizeImage(img, text, mxUtils.bind(this, function(data2, w2, h2)
  	    				{
  							graph.setSelectionCell(graph.insertVertex(null, null, '', graph.snap(dx), graph.snap(dy),
  									w2, h2, 'shape=image;verticalLabelPosition=bottom;labelBackgroundColor=#ffffff;' +
  									'verticalAlign=top;aspect=fixed;imageAspect=0;image=' + this.convertDataUri(data2) + ';'));
  	    				}), resizeImages, this.maxImageSize);
  					}
  					else
  					{
  						var s = Math.min(1, Math.min(this.maxImageSize / img.width, this.maxImageSize / img.height));
  						var w = Math.round(img.width * s);
  						var h = Math.round(img.height * s);
  						
  						graph.setSelectionCell(graph.insertVertex(null, null, '', graph.snap(dx), graph.snap(dy),
  								w, h, 'shape=image;verticalLabelPosition=bottom;labelBackgroundColor=#ffffff;' +
  								'verticalAlign=top;aspect=fixed;imageAspect=0;image=' + text + ';'));
  					}
  				}), mxUtils.bind(this, function()
  				{
  					var cell = null;
  					
  					// Inserts invalid data URIs as text
  			    	graph.getModel().beginUpdate();
  			    	try
  			    	{
  						cell = graph.insertVertex(graph.getDefaultParent(), null, text,
  								graph.snap(dx), graph.snap(dy), 1, 1, 'text;' + ((html) ? 'html=1;' : ''));
  						graph.updateCellSize(cell);
  						graph.fireEvent(new mxEventObject('textInserted', 'cells', [cell]));
  			    	}
  			    	finally
  			    	{
  			    		graph.getModel().endUpdate();
  			    	}
  	
  					graph.setSelectionCell(cell);
  				}));
  				
  				return [];
  			}
  			else
  			{
  				text = this.editor.graph.zapGremlins(mxUtils.trim(text));
  			
  				if (this.isCompatibleString(text))
  				{
  					return this.importXml(text, dx, dy, crop);
  				}
  				else if (text.length > 0)
  				{
  					if (this.isLucidChartData(text))
  					{
  						this.convertLucidChart(text, mxUtils.bind(this, function(xml)
  						{
  							this.editor.graph.setSelectionCells(
  								this.importXml(xml, dx, dy, crop));
  						}), mxUtils.bind(this, function(e)
  						{
  							this.handleError(e);
  						}));
  					}
  					else
  					{
  						var graph = this.editor.graph;
  						var cell = null;
  						
  				    	graph.getModel().beginUpdate();
  				    	try
  				    	{
  				    		// Fires cellsInserted to apply the current style to the inserted text.
  				    		// This requires the value to be empty when the event is fired.
  				    		cell = graph.insertVertex(graph.getDefaultParent(), null, '',
  								graph.snap(dx), graph.snap(dy), 1, 1, 'text;' + ((html) ? 'html=1;' : ''));
  				    		graph.fireEvent(new mxEventObject('textInserted', 'cells', [cell]));
  						
  				    		// Single tag is converted
  				    		if (text.charAt(0) == '<' && text.indexOf('>') == text.length - 1)
  				    		{
  				    			text = mxUtils.htmlEntities(text);
  				    		}
  				    		
  							// Apply value and updates the cell size to fit the text block
  							cell.value = text;
  							graph.updateCellSize(cell);
  							
  							// See http://stackoverflow.com/questions/6927719/url-regex-does-not-work-in-javascript
  							var regexp = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/i;
  							
  							if (regexp.test(cell.value))
  							{
  								graph.setLinkForCell(cell, cell.value);
  							}
  							
  							// Adds spacing
  							cell.geometry.width += graph.gridSize;
  							cell.geometry.height += graph.gridSize;
  				    	}
  				    	finally
  				    	{
  				    		graph.getModel().endUpdate();
  				    	}
  						
  						return [cell];
  					}
  				}
  			}
  		}
  		
  		return [];
  	};
  
  	/**
  	 * Formats the given file size.
  	 */
  	EditorUi.prototype.formatFileSize = function(size)
  	{
  	    var units = [' kB', ' MB', ' GB', ' TB', 'PB', 'EB', 'ZB', 'YB'];
  		var i = -1;
  		
  	    do
  	    {
  	    	size = size / 1024;
  	        i++;
  	    } while (size > 1024);
  
  	    return Math.max(size, 0.1).toFixed(1) + units[i];
  	};
  
  	/**
  	 * Imports the given XML into the existing diagram.
  	 */
  	EditorUi.prototype.convertDataUri = function(uri)
  	{
  		// Handles special case of data URI which needs to be rewritten
  		// to be used in a cell style to remove the semicolon
  		if (uri.substring(0, 5) == 'data:')
  		{
  			var semi = uri.indexOf(';');
  			
  			if (semi > 0)
  			{
  				uri = uri.substring(0, semi) + uri.substring(uri.indexOf(',', semi + 1));
  			}
  		}
  		
  		return uri;
  	};
  	
  	/**
  	 * Returns true for Gliffy data.
  	 */
  	EditorUi.prototype.isRemoteFileFormat = function(data, filename)
  	{
  		return /(\"contentType\":\s*\"application\/gliffy\+json\")/.test(data);
  	};
  	
  	/**
  	 * Returns true for Gliffy or GraphML data or .vsdx filenames.
  	 */
  	EditorUi.prototype.isLucidChartData = function(data)
  	{
  		return data != null && data.substring(0, 26) == '{"state":"{\\"Properties\\":';
  	};
  
  	/**
  	 * Imports a local file from the device or local storage.
  	 */
  	EditorUi.prototype.importLocalFile = function(device, noSplash)
  	{
  		// input.click does not work in IE on Windows 7
  		if (device && Graph.fileSupport && ((!mxClient.IS_IE && !mxClient.IS_IE11) ||
  			navigator.appVersion.indexOf('Windows NT 6.1') < 0))
  		{
  			var input = document.createElement('input');
  			input.setAttribute('type', 'file');
  			
  			mxEvent.addListener(input, 'change', mxUtils.bind(this, function()
  			{
  				if (input.files != null)
  				{
  					// Using null for position will disable crop of input file
  					this.importFiles(input.files, null, null, this.maxImageSize);
  				}
  			}));
  
  			input.click();
  		}
  		else
  		{
  			window.openNew = false;
  			window.openKey = 'import';
  			
  			if (!noSplash)
  			{
  				var prevValue = Editor.useLocalStorage;
  				Editor.useLocalStorage = !device;
  			}
  
  			// Closes dialog after open
  			window.openFile = new OpenFile(mxUtils.bind(this, function(cancel)
  			{
  				this.hideDialog(cancel);
  			}));
  			
  			window.openFile.setConsumer(mxUtils.bind(this, function(xml, filename)
  			{
  				if (filename != null && Graph.fileSupport && /(\.vsdx?)($|\?)/i.test(filename))
  				{
  					// "Not a UTF 8 file" when opening VSDX in IE so this is never called
  					var file = new Blob([xml], {type: 'application/octet-stream'})
  					
  					this.importVisio(file, mxUtils.bind(this, function(xml)
  					{
  						this.importXml(xml);
  					}), null, filename);
  				}
  				else
  				{				
  					this.editor.graph.setSelectionCells(this.importXml(xml));
  				}
  			}));
  
  			// Removes openFile if dialog is closed
  			this.showDialog(new OpenDialog(this).container, 360, 220, true, true, function()
  			{
  				window.openFile = null;
  			});
  			
  			// Extends dialog close to show splash screen
  			if (!noSplash)
  			{
  				var dlg = this.dialog;
  				var dlgClose = dlg.close;
  				
  				this.dialog.close = mxUtils.bind(this, function(cancel)
  				{
  					Editor.useLocalStorage = prevValue;
  					dlgClose.apply(dlg, arguments);
  					
  					if (cancel && this.getCurrentFile() == null && urlParams['embed'] != '1')
  					{
  						this.showSplash();
  					}
  				});
  			}
  		}
  	};
  	
  	/**
  	 * Imports the given XML into the existing diagram.
  	 */
  	EditorUi.prototype.importFile = function(data, mimeType, dx, dy, w, h, filename, done, file, crop, ignoreEmbeddedXml)
  	{
  		crop = (crop != null) ? crop : true;
  		var async = false;
  		var cells = null;
  		
  		var handleResult = mxUtils.bind(this, function(xml)
  		{
  			var importedCells = null;
  			
  			if (xml != null && xml.substring(0, 10) == '<mxlibrary')
  			{
  				console.log("Importing library")
  				this.loadLibrary(new LocalLibrary(this, xml, filename));
  			}
  			else
  			{
  				importedCells = this.importXml(xml, dx, dy, crop);
  			}
  			
  			if (done != null)
  			{
  				done(importedCells);
  			}
  		});
  		
  		if (mimeType.substring(0, 5) == 'image')
  		{
  			var containsModel = false;
  
  			if (mimeType.substring(0, 9) == 'image/png')
  			{
  				var xml = (ignoreEmbeddedXml) ? null : this.extractGraphModelFromPng(data);
  				
  				if (xml != null && xml.length > 0)
  				{
  					cells = this.importXml(xml, dx, dy, crop);
  					containsModel = true;
  				}
  			}
  			
  			if (!containsModel)
  			{
  				var graph = this.editor.graph;
  				
  				// Strips encoding bit (eg. ;base64,) for cell style
  				var semi = data.indexOf(';');
  	
  				if (semi > 0)
  				{
  					data = data.substring(0, semi) + data.substring(data.indexOf(',', semi + 1));
  				}
  				
  				if (crop && graph.isGridEnabled())
  				{
  					dx = graph.snap(dx);
  					dy = graph.snap(dy);
  				}
  
  				cells = [graph.insertVertex(null, null, '', dx, dy, w, h,
  					'shape=image;verticalLabelPosition=bottom;labelBackgroundColor=#ffffff;' +
  					'verticalAlign=top;aspect=fixed;imageAspect=0;image=' + data + ';')];
  			}
  		}
  		else if (/(\.*<graphml )/.test(data) && typeof window.mxGraphMlCodec !== 'undefined') 
          {
              new mxGraphMlCodec().decode(data, mxUtils.bind(this, function(xml)
              {
                  var importedCells = this.importXml(xml, dx, dy, crop);
                  
                  if (done != null)
                  {
                      done(importedCells);
                  }
              }));
          }
  		else if (file != null && filename != null && ((/(\.vsdx?)($|\?)/i.test(filename)) || /(\.vssx?)($|\?)/i.test(filename)))
  		{
  			//  LATER: done and async are a hack before making this asynchronous
  			async = true;
  
  			this.importVisio(file, handleResult);
  		}
  		else if (!this.isOffline() && new XMLHttpRequest().upload && this.isRemoteFileFormat(data, filename))
  		{
  			//  LATER: done and async are a hack before making this asynchronous
  			async = true;
  
  			// Returns empty cells array as it is aysynchronous
  			this.parseFile((file != null) ? file : new Blob([data], {type: 'application/octet-stream'}), mxUtils.bind(this, function(xhr)
  			{
  				if (xhr.readyState == 4)
  				{
  					if (xhr.status >= 200 && xhr.status <= 299)
  					{
  						handleResult(xhr.responseText);
  					}
  					else if (done != null)
  					{
  						done(null);
  					}
  				}
  			}), filename);
  		}
  		else if (!/(\.vsd)($|\?)/i.test(filename) && !/(\.vss)($|\?)/i.test(filename))
  		{
  			cells = this.insertTextAt(this.validateFileData(data), dx, dy, true, null, crop);
  		}
  		
  		if (!async && done != null)
  		{
  			done(cells);
  		}
  		
  		return cells;
  	};
  	
  	/**
  	 * Base64 encodes the given string. This method seems to be more
  	 * robust for encoding PNG from binary AJAX responses.
  	 */
  	EditorUi.prototype.base64Encode = function(str)
  	{
  	    var CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  	    var out = "", i = 0, len = str.length, c1, c2, c3;
  	    
  	    while (i < len)
  	    {
  	        c1 = str.charCodeAt(i++) & 0xff;
  	        
  	        if (i == len)
  	        {
  	            out += CHARS.charAt(c1 >> 2);
  	            out += CHARS.charAt((c1 & 0x3) << 4);
  	            out += "==";
  	            break;
  	        }
  	        
  	        c2 = str.charCodeAt(i++);
  	        
  	        if (i == len)
  	        {
  	            out += CHARS.charAt(c1 >> 2);
  	            out += CHARS.charAt(((c1 & 0x3)<< 4) | ((c2 & 0xF0) >> 4));
  	            out += CHARS.charAt((c2 & 0xF) << 2);
  	            out += "=";
  	            break;
  	        }
  	        
  	        c3 = str.charCodeAt(i++);
  	        out += CHARS.charAt(c1 >> 2);
  	        out += CHARS.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4));
  	        out += CHARS.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6));
  	        out += CHARS.charAt(c3 & 0x3F);
  	    }
  	    
  	    return out;
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.importFiles = function(files, x, y, maxSize, fn, resultFn, filterFn, barrierFn, resizeDialog, maxBytes, resampleThreshold, ignoreEmbeddedXml)
  	{
  		x = (x != null) ? x : 0;
  		y = (y != null) ? y : 0;
  		maxSize = (maxSize != null) ? maxSize : this.maxImageSize;
  		maxBytes = (maxBytes != null) ? maxBytes : this.maxImageBytes;
  		
  		var crop = x != null && y != null;
  		var resizeImages = true;
  		
  		// Checks if large images are imported
  		var largeImages = false;
  		
  		if (!mxClient.IS_CHROMEAPP && files != null)
  		{
  			var thresh = resampleThreshold || this.resampleThreshold;
  			
  			for (var i = 0; i < files.length; i++)
  			{
  				if (files[i].type.substring(0, 6) == 'image/' && files[i].size > thresh)
  				{
  					largeImages = true;
  					
  					break;
  				}
  			}
  		}
  
  		var doImportFiles = mxUtils.bind(this, function()
  		{
  			var graph = this.editor.graph;
  			var gs = graph.gridSize;
  	
  			fn = (fn != null) ? fn : mxUtils.bind(this, function(data, mimeType, x, y, w, h, filename, done, file)
  			{
  				if (data != null && data.substring(0, 10) == '<mxlibrary')
  				{
  					this.spinner.stop();
  					this.loadLibrary(new LocalLibrary(this, data, filename));
  	    			
  	    			return null;
  				}
  				else
  				{
  					return this.importFile(data, mimeType, x, y, w, h, filename, done, file, crop, ignoreEmbeddedXml);
  				}
  			});
  			
  			resultFn = (resultFn != null) ? resultFn : mxUtils.bind(this, function(cells)
  			{
  				graph.setSelectionCells(cells);
  			});
  	
  			if (this.spinner.spin(document.body, mxResources.get('loading')))
  			{
  				var count = files.length;
  				var remain = count;
  				var queue = [];
  				
  				// Barrier waits for all files to be loaded asynchronously
  				var barrier = mxUtils.bind(this, function(index, fnc)
  				{
  					queue[index] = fnc;
  					
  					if (--remain == 0)
  					{
  						this.spinner.stop();
  						
  						if (barrierFn != null)
  						{
  							barrierFn(queue);
  						}
  						else
  						{
  							var cells = [];
  							
  							graph.getModel().beginUpdate();
  							try
  							{
  							    	for (var j = 0; j < queue.length; j++)
  							    	{
  							    		var tmp = queue[j]();
  							    		
  							    		if (tmp != null)
  							    		{
  							    			cells = cells.concat(tmp);
  							    		}
  							    	}
  							}
  							finally
  							{
  								graph.getModel().endUpdate();
  							}
  						}
  						
  						resultFn(cells);
  					}
  				});
  				
  				for (var i = 0; i < count; i++)
  				{
  					(mxUtils.bind(this, function(index)
  					{
  						var file = files[index];
  						var reader = new FileReader();
  						
  						reader.onload = mxUtils.bind(this, function(e)
  						{
  							if (filterFn == null || filterFn(file))
  							{
  						    		if (file.type.substring(0, 6) == 'image/')
  						    		{
  						    			if (file.type.substring(0, 9) == 'image/svg')
  						    			{
  						    				// Checks if SVG contains content attribute
  					    					var data = e.target.result;
  					    					var comma = data.indexOf(',');
  					    					var svgText = decodeURIComponent(escape(atob(data.substring(comma + 1))));
  					    					var root = mxUtils.parseXml(svgText);
  				    						var svgs = root.getElementsByTagName('svg');
  				    						
  				    						if (svgs.length > 0)
  					    					{
  				    							var svgRoot = svgs[0];
  						    					var cont = (ignoreEmbeddedXml) ? null : svgRoot.getAttribute('content');
  		
  						    					if (cont != null && cont.charAt(0) != '<' && cont.charAt(0) != '%')
  						    					{
  						    						cont = unescape((window.atob) ? atob(cont) : Base64.decode(cont, true));
  						    					}
  						    					
  						    					if (cont != null && cont.charAt(0) == '%')
  						    					{
  						    						cont = decodeURIComponent(cont);
  						    					}
  		
  						    					if (cont != null && (cont.substring(0, 8) === '<mxfile ' ||
  						    						cont.substring(0, 14) === '<mxGraphModel '))
  						    					{
  						    						barrier(index, mxUtils.bind(this, function()
  								    				{
  								    					return fn(cont, 'text/xml', x + index * gs, y + index * gs, 0, 0, file.name);	
  								    				}));
  						    					}
  						    					else
  						    					{
  								    				// SVG needs special handling to add viewbox if missing and
  								    				// find initial size from SVG attributes (only for IE11)
  								    				barrier(index, mxUtils.bind(this, function()
  								    				{
  							    						try
  							    						{
  									    					var prefix = data.substring(0, comma + 1);
  									    					
  									    					// Parses SVG and find width and height
  									    					if (root != null)
  									    					{
  									    						var svgs = root.getElementsByTagName('svg');
  									    						
  									    						if (svgs.length > 0)
  										    					{
  									    							var svgRoot = svgs[0];
  										    						var w = parseFloat(svgRoot.getAttribute('width'));
  										    						var h = parseFloat(svgRoot.getAttribute('height'));
  										    						
  										    						// Check if viewBox attribute already exists
  										    						var vb = svgRoot.getAttribute('viewBox');
  										    						
  										    						if (vb == null || vb.length == 0)
  										    						{
  										    							svgRoot.setAttribute('viewBox', '0 0 ' + w + ' ' + h);
  										    						}
  										    						// Uses width and height from viewbox for
  										    						// missing width and height attributes
  										    						else if (isNaN(w) || isNaN(h))
  										    						{
  										    							var tokens = vb.split(' ');
  										    							
  										    							if (tokens.length > 3)
  										    							{
  										    								w = parseFloat(tokens[2]);
  										    								h = parseFloat(tokens[3]);
  										    							}
  										    						}
  	
  										    						data = this.createSvgDataUri(mxUtils.getXml(svgRoot));
  										    						var s = Math.min(1, Math.min(maxSize / Math.max(1, w)), maxSize / Math.max(1, h));
  										    						var cells = fn(data, file.type, x + index * gs, y + index * gs, Math.max(
  										    							1, Math.round(w * s)), Math.max(1, Math.round(h * s)), file.name);
  										    						
  										    						// Hack to fix width and height asynchronously
  										    						if (isNaN(w) || isNaN(h))
  										    						{
  										    							var img = new Image();
  										    							
  										    							img.onload = mxUtils.bind(this, function()
  										    							{
  										    								w = Math.max(1, img.width);
  										    								h = Math.max(1, img.height);
  										    								
  										    								cells[0].geometry.width = w;
  										    								cells[0].geometry.height = h;
  										    								
  										    								svgRoot.setAttribute('viewBox', '0 0 ' + w + ' ' + h);
  										    								data = this.createSvgDataUri(mxUtils.getXml(svgRoot));
  										    								
  										    								var semi = data.indexOf(';');
  										    								
  										    								if (semi > 0)
  										    								{
  										    									data = data.substring(0, semi) + data.substring(data.indexOf(',', semi + 1));
  										    								}
  										    								
  										    								graph.setCellStyles('image', data, [cells[0]]);
  										    							});
  										    							
  										    							img.src = this.createSvgDataUri(mxUtils.getXml(svgRoot));
  										    						}
  										    						
  										    						return cells;
  										    					}
  									    					}
  							    						}
  							    						catch (e)
  							    						{
  							    							// ignores any SVG parsing errors
  							    						}
  								    					
  								    					return null;
  								    				}));
  						    					}
  					    					}
  						    			}
  						    			else
  						    			{
  						    				// Checks if PNG+XML is available to bypass code below
  						    				var containsModel = false;
  						    				
  						    				if (file.type == 'image/png')
  						    				{
  						    					var xml = (ignoreEmbeddedXml) ? null : this.extractGraphModelFromPng(e.target.result);
  						    					
  						    					if (xml != null && xml.length > 0)
  						    					{
  						    						var img = new Image();
  						    						img.src = e.target.result;
  						    						
  								    				barrier(index, mxUtils.bind(this, function()
  								    				{
  								    					return fn(xml, 'text/xml', x + index * gs, y + index * gs,
  								    						img.width, img.height, file.name);	
  								    				}));
  						    						
  						    						containsModel = true;
  						    					}
  						    				}
  						    				
  							    			// Additional asynchronous step for finding image size
  						    				if (!containsModel)
  						    				{
  						    					// Cannot load local files in Chrome App
  						    					if (mxClient.IS_CHROMEAPP)
  						    					{
  						    						this.spinner.stop();
  						    						this.showError(mxResources.get('error'), mxResources.get('dragAndDropNotSupported'),
  						    							mxResources.get('cancel'), mxUtils.bind(this, function()
  					    								{
  					    									// Hides the dialog
  					    								}), null, mxResources.get('ok'), mxUtils.bind(this, function()
  					    								{
  						    								// Redirects to import function
  					    									this.actions.get('import').funct();
  					    								})
  					    							);
  						    					}
  						    					else
  						    					{
  									    			this.loadImage(e.target.result, mxUtils.bind(this, function(img)
  									    			{
  									    				this.resizeImage(img, e.target.result, mxUtils.bind(this, function(data2, w2, h2)
  									    				{
  										    				barrier(index, mxUtils.bind(this, function()
  												    		{
  										    					// Refuses to insert images above a certain size as they kill the app
  										    					if (data2 != null && data2.length < maxBytes)
  										    					{
  											    					var s = (!resizeImages || !this.isResampleImage(e.target.result, resampleThreshold)) ? 1 : Math.min(1, Math.min(maxSize / w2, maxSize / h2));
  												    				
  											    					return fn(data2, file.type, x + index * gs, y + index * gs, Math.round(w2 * s), Math.round(h2 * s), file.name);
  										    					}
  										    					else
  										    					{
  										    						this.handleError({message: mxResources.get('imageTooBig')});
  										    						
  										    						return null;
  										    					}
  												    		}));
  									    				}), resizeImages, maxSize, resampleThreshold);
  									    			}), mxUtils.bind(this, function()
  									    			{
  									    				this.handleError({message: mxResources.get('invalidOrMissingFile')});
  									    			}));
  						    					}
  						    				}
  						    			}
  						    		}
  						    		else
  						    		{
  										fn(e.target.result, file.type, x + index * gs, y + index * gs, 240, 160, file.name, function(cells)
  										{
  											barrier(index, function()
  				    	    				{
  				    		    				return cells;
  				    	    				});
  										});
  						    		}
  							}
  						});
  						
  						// Handles special cases
  						if (/(\.vsdx?)($|\?)/i.test(file.name) || /(\.vssx?)($|\?)/i.test(file.name))
  						{
  							fn(null, file.type, x + index * gs, y + index * gs, 240, 160, file.name, function(cells)
  							{
  								barrier(index, function()
  	    	    				{
  	    		    				return cells;
  	    	    				});
  							}, file);
  						}
  						else if (file.type.substring(0, 5) == 'image')
  						{
  							reader.readAsDataURL(file);
  						}
  						else
  						{
  							reader.readAsText(file);
  						}
  					}))(i);
  				}
  			}
  		});
  		
  		if (largeImages)
  		{
  			this.confirmImageResize(function(doResize)
  			{
  				resizeImages = doResize;
  				doImportFiles();
  			}, resizeDialog);
  		}
  		else
  		{
  			doImportFiles();
  		}
  	};
  
  	/**
  	 * Parses the file using XHR2 via the server. File can be a blob or file object.
  	 * Filename is an optional parameter for blobs (that do not have a filename).
  	 */
  	EditorUi.prototype.confirmImageResize = function(fn, force)
  	{
  		force = (force != null) ? force : false;
  		var resume = (this.spinner != null && this.spinner.pause != null) ? this.spinner.pause() : function() {};
  		var resizeImages = (isLocalStorage || mxClient.IS_CHROMEAPP) ? mxSettings.getResizeImages() : null;
  		
  		var wrapper = function(remember, resize)
  		{
  			if (remember || force)
  			{
  				mxSettings.setResizeImages((remember) ? resize : null);
  				mxSettings.save();
  			}
  			
  			resume();
  			fn(resize);
  		};
  
  		if (resizeImages != null && !force)
  		{
  			wrapper(false, resizeImages);
  		}
  		else
  		{
  			this.showDialog(new ConfirmDialog(this, mxResources.get('resizeLargeImages'),
  			function(remember)
  			{
  				wrapper(remember, true);
  			},
  			function(remember)
  			{
  				wrapper(remember, false);
  			}, mxResources.get('resize'), mxResources.get('actualSize'),
  			'<img style="margin-top:8px;" src="' + Editor.loResImage + '"/>',
  			'<img style="margin-top:8px;" src="' + Editor.hiResImage + '"/>',
  			isLocalStorage || mxClient.IS_CHROMEAPP).container, 340,
  			(isLocalStorage || mxClient.IS_CHROMEAPP) ? 220 : 200, true, true);
  		}
  	};
  	
  	/**
  	 * Parses the file using XHR2 via the server. File can be a blob or file object.
  	 * Filename is an optional parameter for blobs (that do not have a filename).
  	 */
  	EditorUi.prototype.parseFile = function(file, fn, filename)
  	{
  		filename = (filename != null) ? filename : file.name;
  		
  		var formData = new FormData();
  		formData.append('format', 'xml');
  		formData.append('upfile', file, filename);
  
  		var xhr = new XMLHttpRequest();
  		xhr.open('POST', OPEN_URL);
  		
  		xhr.onreadystatechange = function()
  		{
  			fn(xhr);
  		};
  		
  		xhr.send(formData);
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.isResampleImage = function(data, thresh)
  	{
  		thresh = (thresh != null) ? thresh : this.resampleThreshold;
  
  		return data.length > thresh;
  	};
  	
  	/**
  	 * Resizes the given image if <maxImageBytes> is not null.
  	 */
  	EditorUi.prototype.resizeImage = function(img, data, fn, enabled, maxSize, thresh)
  	{
  		maxSize = (maxSize != null) ? maxSize : this.maxImageSize;
  		var w = Math.max(1, img.width);
  		var h = Math.max(1, img.height);
  		
  		if (enabled && this.isResampleImage(data, thresh))
  		{
  			try
  			{
  				var factor = Math.max(w / maxSize, h / maxSize);
  				
  				if (factor > 1)
  				{
  					var w2 = Math.round(w / factor);
  					var h2 = Math.round(h / factor);
  					
  					var canvas = document.createElement('canvas');
  				    canvas.width = w2;
  				    canvas.height = h2;
  	
  				    var ctx = canvas.getContext('2d');
  				    ctx.drawImage(img, 0, 0, w2, h2);
  				    
  				    var tmp = canvas.toDataURL();
  
  				    // Uses new image if smaller
  				    if (tmp.length < data.length)
  				    {			    
  				    	// Checks if the image is empty by comparing
  				    	// with an empty image of the same size
  				    	var canvas2 = document.createElement('canvas');
  						canvas2.width = w2;
  					    canvas2.height = h2;
  					    var tmp2 = canvas2.toDataURL();
  					    
  					    if (tmp !== tmp2)
  					    {	
  					    	data = tmp;
  					    	w = w2;
  					    	h = h2;
  					    }
  				    }
  				}
  			}
  			catch (e)
  			{
  				// ignores image scaling errors
  			}
  		}
  
  		fn(data, w, h);
  	};
  	
  	EditorUi.prototype.crcTable = [];
  	
  	for (var n = 0; n < 256; n++)
  	{
  		var c = n;
  		
  		for (var k = 0; k < 8; k++)
  		{
  			if ((c & 1) == 1)
  			{
  				c = 0xedb88320 ^ (c >>> 1);
  			}
  			else
  			{
  				c >>>= 1;
  			}
  
  			EditorUi.prototype.crcTable[n] = c;
  		}
  	}
  	
  	EditorUi.prototype.updateCRC = function(crc, data, off, len)
  	{
  		var c = crc;
  	
  		for (var n = 0; n < len; n++)
  		{
  			c = EditorUi.prototype.crcTable[(c ^ data[off + n]) & 0xff] ^ (c >>> 8);
  		}
  	
  		return c;
  	};
  
  	EditorUi.prototype.crc32 = function(str)
  	{
  		this.crcTable = this.crcTable || this.createCrcTable();
  	    var crc = 0 ^ (-1);
  
  	    for (var i = 0; i < str.length; i++ )
  	    {
  	        crc = (crc >>> 8) ^ this.crcTable[(crc ^ str.charCodeAt(i)) & 0xFF];
  	    }
  
  	    return (crc ^ (-1)) >>> 0;
  	};
  
  	/**
  	 * Adds the given text to the compressed or non-compressed text chunk.
  	 */
  	EditorUi.prototype.writeGraphModelToPng = function(data, type, key, value, error)
  	{
  		var base64 = data.substring(data.indexOf(',') + 1);
  		var f = (window.atob) ? atob(base64) : Base64.decode(base64, true);
  		var pos = 0;
  		
  		function fread(d, count)
  		{
  			var start = pos;
  			pos += count;
  			
  			return d.substring(start, pos);
  		};
  		
  		// Reads unsigned long 32 bit big endian
  		function _freadint(d)
  		{
  			var bytes = fread(d, 4);
  			
  			return bytes.charCodeAt(3) + (bytes.charCodeAt(2) << 8) +
  				(bytes.charCodeAt(1) << 16) + (bytes.charCodeAt(0) << 24);
  		};
  		
  		function writeInt(num)
  		{
  			return String.fromCharCode((num >> 24) & 0x000000ff, (num >> 16) & 0x000000ff,
  				(num >> 8) & 0x000000ff, num & 0x000000ff);
  		};
  		
  		// Checks signature
  		if (fread(f,8) != String.fromCharCode(137) + 'PNG' + String.fromCharCode(13, 10, 26, 10))
  		{
  			if (error != null)
  			{
  				error();
  			}
  			
  			return;
  		}
  		
  		// Reads header chunk
  		fread(f,4);
  		
  		if (fread(f,4) != 'IHDR')
  		{
  			if (error != null)
  			{
  				error();
  			}
  			
  			return;
  		}
  		
  		fread(f, 17);
  		var result = f.substring(0, pos);
  		
  		do
  		{
  			var n = _freadint(f);
  			var chunk = fread(f,4);
  			
  			if (chunk == 'IDAT')
  			{
  				result = f.substring(0, pos - 8);
  				
  				var chunkData = key + String.fromCharCode(0) +
  					((type == 'zTXt') ? String.fromCharCode(0) : '') + 
  					value;
  				
  				// FIXME: Wrong crc
  				var crc = 0xffffffff;
  				crc = this.updateCRC(crc, type, 0, 4);
  				crc = this.updateCRC(crc, chunkData, 0, chunkData.length);
  				
  				result += writeInt(chunkData.length) + type + chunkData + writeInt(crc ^ 0xffffffff);
  				result += f.substring(pos - 8, f.length);
  				
  				break;
  			}
  			
  			result += f.substring(pos - 8, pos - 4 + n);
  			fread(f,n);
  			fread(f,4);
  		}
  		while (n);
  		
  		return 'data:image/png;base64,' + ((window.btoa) ? btoa(result) : Base64.encode(result, true));
  	}
  	
  	/**
  	 * Extracts the XML from the compressed or non-compressed text chunk.
  	 */
  	EditorUi.prototype.extractGraphModelFromPng = function(data)
  	{
  		var result = null;
  		
  		try
  		{
  			var base64 = data.substring(data.indexOf(',') + 1);
  
  			// Workaround for invalid character error in Safari
  			var binary = (window.atob && !mxClient.IS_SF) ? atob(base64) : Base64.decode(base64, true);
  			
  			EditorUi.parsePng(binary, mxUtils.bind(this, function(pos, type, length)
  			{
  				var value = binary.substring(pos + 8, pos + 8 + length);
  				
  				if (type == 'zTXt')
  				{
  					var idx = value.indexOf(String.fromCharCode(0));
  					
  					if (value.substring(0, idx) == 'mxGraphModel')
  					{
  						// Workaround for Java URL Encoder using + for spaces, which isn't compatible with JS
  						var xmlData = this.editor.graph.bytesToString(pako.inflateRaw(
  							value.substring(idx + 2))).replace(/\+/g,' ');
  						
  						if (xmlData != null && xmlData.length > 0)
  						{
  							result = xmlData;
  						}
  					}
  				}
  				// Uncompressed section is normally not used
  				else if (type == 'tEXt')
  				{
  					var vals = value.split(String.fromCharCode(0));
  					
  					if (vals.length > 1 && vals[0] == 'mxGraphModel')
  					{
  						result = vals[1];
  					}
  				}
  				
  				if (result != null || type == 'IDAT')
  				{
  					// Stops processing the file as our text chunks
  					// are always placed before the data section
  					return true;
  				}
  			}));
  		}
  		catch (e)
  		{
  			// ignores decoding errors
  		}
  		
  		if (result != null && result.charAt(0) == '%')
  		{
  			result = decodeURIComponent(result);
  		}
  		
  		// Workaround for double encoded content
  		if (result != null && result.charAt(0) == '%')
  		{
  			result = decodeURIComponent(result);
  		}
  		
  		return result;
  	};
  
  	/**
  	 * Loads the image from the given URI.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.loadImage = function(uri, onload, onerror)
  	{
  		var img = new Image();
  		
  		img.onload = function()
  		{
  			onload(img);
  		}
  		
  		if (onerror != null)
  		{
  			img.onerror = onerror;
  		}
  		
  		img.src = uri;
  	};
  
  	// Initializes the user interface
  	var editorUiInit = EditorUi.prototype.init;
  	EditorUi.prototype.init = function()
  	{
  		mxStencilRegistry.allowEval = mxStencilRegistry.allowEval && !this.isOfflineApp();
  		
  		// Must be set before UI is created in superclass
  		if (typeof window.mxSettings !== 'undefined')
  		{
  			this.formatWidth = mxSettings.getFormatWidth();
  		}
  		
  		var ui = this;
  		var graph = this.editor.graph;
  		
  		// Redirects custom link title via UI for page links
  		graph.getLinkTitle = function(href)
  		{
  			return ui.getLinkTitle(href);
  		};
  		
  		// Redirects custom link via UI for page link handling
  		graph.customLinkClicked = function(link)
  		{
  			var done = false;
  			
  			try
  			{
  				ui.handleCustomLink(link);
  				done = true;
  			}
  			catch (e)
  			{
  				ui.handleError(e);
  			}
  			
  			return done;
  		};
  		
  		// Extends clear default style to clear persisted settings
  		var clearDefaultStyle = this.clearDefaultStyle;
  		
  		this.clearDefaultStyle = function()
  		{
  			clearDefaultStyle.apply(this, arguments);
  			
  			if (!this.persistCurrentEdgeStyle)
  			{
  				mxSettings.setCurrentEdgeStyle(this.editor.graph.currentEdgeStyle);
  				mxSettings.save();
  			}
  			
  			if (!this.persistCurrentVertexStyle)
  			{
  				mxSettings.setCurrentVertexStyle(this.editor.graph.currentVertexStyle);
  				mxSettings.save();
  			}
  		};
  		
  		// Sets help link for placeholders
  		if (!this.isOffline() && typeof window.EditDataDialog !== 'undefined')
  		{
  			EditDataDialog.placeholderHelpLink = 'https://desk.draw.io/support/solutions/articles/16000051979';
  		}
  		
  		// Passes current page to editor window
  		var editorGetEditBlankUrl = ui.editor.getEditBlankUrl;
  		
  		this.editor.getEditBlankUrl = function(params)
  		{
  			params = (params != null) ? params : '';
  			
  			if (ui.pages != null && ui.currentPage != null)
  			{
  				for (var i = 0; i < ui.pages.length; i++)
  				{
  					if (ui.pages[i] == ui.currentPage)
  					{
  						if (i > 0)
  						{
  							params += ((params.length > 0) ? '&' : '?') + 'page=' + i;
  						}
  						
  						break;
  					}
  				}
  			}
  			
  			if (urlParams['dev'] == '1')
  			{
  				params += ((params.length > 0) ? '&' : '?') + 'dev=1&drawdev=1';
  			}
  			
  			return editorGetEditBlankUrl.apply(this, arguments);
  		};
  
  		// For chromeless mode and lightbox mode in viewer
  		// Must be overridden before supercall to be applied
  		// in case of chromeless initialization
  		var graphAddClickHandler = graph.addClickHandler;
  
  		graph.addClickHandler = function(highlight, beforeClick, onClick)
  		{
  			var tmp = beforeClick;
  
  			beforeClick = function(evt, href)
  			{
  				if (href == null)
  				{
  					var source = mxEvent.getSource(evt);
  				
  					if (source.nodeName.toLowerCase() == 'a')
  					{
  						href = source.getAttribute('href');
  					}
  				}
  
  				if (href != null && graph.isCustomLink(href) &&
  					(mxEvent.isTouchEvent(evt) ||
  					!mxEvent.isPopupTrigger(evt)) &&
  					graph.customLinkClicked(href))
  				{
  					mxEvent.consume(evt);
  				}
  				
  				if (tmp != null)
  				{
  					tmp(evt, href);
  				}
  			};
  			
  			// For some reason, local argument override is not enough in this case...
  			graphAddClickHandler.call(this, highlight, beforeClick, onClick);
  		};
  
  		editorUiInit.apply(this, arguments);
  		
  		if (mxClient.IS_SVG)
  		{
  			// LATER: Add shadow for labels in graph.container (eg. math, NO_FO), scaling
  			this.editor.graph.addSvgShadow(graph.view.canvas.ownerSVGElement, null, true);
  		}
  
  		// Overrides print dialog size
  		ui.actions.get('print').funct = function()
  		{
  			ui.showDialog(new PrintDialog(ui).container, 360,
  				(ui.pages != null && ui.pages.length > 1) ?
  				420 : 360, true, true);
  		};
  
  		// Specifies the default filename
  		this.defaultFilename = mxResources.get('untitledDiagram');
  		
  		// Adds placeholder for %page% and %pagenumber%
  		var graphGetGlobalVariable = graph.getGlobalVariable;
  		
  		graph.getGlobalVariable = function(name)
  		{
  			if (name == 'page' && ui.currentPage != null)
  			{
  				return ui.currentPage.getName();
  			}
  			else if (name == 'pagenumber')
  			{
  				if (ui.currentPage != null && ui.pages != null)
  				{
  					return mxUtils.indexOf(ui.pages, ui.currentPage) + 1;
  				}
  				else
  				{
  					return 1;
  				}
  			}
  			
  			return graphGetGlobalVariable.apply(this, arguments);
  		};
  
  		var graphLabelLinkClicked = graph.labelLinkClicked;
  		
  		graph.labelLinkClicked = function(state, elt, evt)
  		{
  			var href = elt.getAttribute('href');
  			
  			if (href != null && graph.isCustomLink(href) &&
  				(mxEvent.isTouchEvent(evt) ||
  				!mxEvent.isPopupTrigger(evt)))
  			{
  				// Active links are moved to the hint
  				if (!graph.isEnabled() || (state != null && graph.isCellLocked(state.cell)))
  				{
  					graph.customLinkClicked(href);
  					
  					// Resets rubberband after click on locked cell
  					graph.getRubberband().reset();
  				}
  				
  				mxEvent.consume(evt);
  			}
  			else
  			{
  				graphLabelLinkClicked.apply(this, arguments);
  			}
  		};
  
  		// Overrides editor filename
  		this.editor.getOrCreateFilename = function()
  		{
  			var filename = ui.defaultFilename;
  			var file = ui.getCurrentFile();
  			
  			if (file != null)
  			{
  				filename = (file.getTitle() != null) ? file.getTitle() : filename;
  			}
  			
  			return filename;
  		};
  
  		// Disables print action for standalone apps on iOS
  		// because there is no way to close the new window
  		// LATER: Use iframe for print, disable preview
  		var printAction = this.actions.get('print');
  		printAction.setEnabled(!mxClient.IS_IOS || !navigator.standalone);
  		printAction.visible = printAction.isEnabled();
  		
  		// Scales pages/graph to fit available size
  		if (!this.editor.chromeless || this.editor.editable)
  		{
  			// Defines additional hotkeys
  			this.keyHandler.bindAction(70, true, 'find'); // Ctrl+F
  		    this.keyHandler.bindAction(67, true, 'copyStyle', true); // Ctrl+Shift+C
  		    this.keyHandler.bindAction(86, true, 'pasteStyle', true); // Ctrl+Shift+V
  		    this.keyHandler.bindAction(77, true, 'editGeometry', true); // Ctrl+Shift+M
  		    this.keyHandler.bindAction(88, true, 'insertText', true); // Ctrl+Shift+X
  		    this.keyHandler.bindAction(75, true, 'insertRectangle'); // Ctrl+K
  		    this.keyHandler.bindAction(75, true, 'insertEllipse', true); // Ctrl+Shift+K
  			
  			// Handles copy paste of images from clipboard
  			if (!mxClient.IS_IE)
  			{
  				graph.container.addEventListener('paste', mxUtils.bind(this, function(evt)
  				{
  					var graph = this.editor.graph;
  					
  					if (!mxEvent.isConsumed(evt))
  					{
  						try
  						{
  							var data = (evt.clipboardData || evt.originalEvent.clipboardData);
  							var containsText = false;
  							
  							// Workaround for asynchronous paste event processing in textInput
  							// is to ignore this event if it contains text/html/rtf (see below).
  							// NOTE: Image is not pasted into textInput so can't listen there.
  							for (var i = 0; i < data.types.length; i++)
  							{	
  								if (data.types[i].substring(0, 5) === 'text/')
  								{
  									containsText = true;
  									break;
  								}
  							}
  							
  							if (!containsText)
  							{
  								var items = data.items;
  								
  								for (index in items)
  								{
  									var item = items[index];
  									
  									if (item.kind === 'file')
  									{
  										if (graph.isEditing())
  										{
  										    	this.importFiles([item.getAsFile()], 0, 0, this.maxImageSize, function(data, mimeType, x, y, w, h)
  										    	{
  										    		// Inserts image into current text box
  										    		graph.insertImage(data, w, h);
  										    	}, function()
  										    	{
  										    		// No post processing
  										    	}, function(file)
  										    	{
  										    		// Handles only images
  										    		return file.type.substring(0, 6) == 'image/';
  										    	}, function(queue)
  										    	{
  										    		// Invokes elements of queue in order
  										    		for (var i = 0; i < queue.length; i++)
  										    		{
  										    			queue[i]();
  										    		}
  										    	});
  										}
  										else
  										{
  											var pt = this.editor.graph.getInsertPoint();
  											this.importFiles([item.getAsFile()], pt.x, pt.y, this.maxImageSize);
  											mxEvent.consume(evt);
  										}
  										
  										break;
  									}
  								}
  							}
  						}
  						catch (e)
  						{
  							// ignore
  						}
  					}
  				}), false);
  			}
  
  			// Focused but invisible textarea during control or meta key events
  			var textInput = document.createElement('div');
  			textInput.style.position = 'absolute';
  			textInput.style.whiteSpace = 'nowrap';
  			textInput.style.overflow = 'hidden';
  			textInput.style.display = 'block';
  			textInput.contentEditable = true;
  			mxUtils.setOpacity(textInput, 0);
  			textInput.style.width = '1px';
  			textInput.style.height = '1px';
  			textInput.innerHTML = '&nbsp;';
  
  			var restoreFocus = false;
  			
  			// Disables built-in cut, copy and paste shortcuts
  			this.keyHandler.bindControlKey(88, null);
  			this.keyHandler.bindControlKey(67, null);
  			this.keyHandler.bindControlKey(86, null);
  
  			// Shows a textare when control/cmd is pressed to handle native clipboard actions
  			mxEvent.addListener(document, 'keydown', mxUtils.bind(this, function(evt)
  			{
  				// No dialog visible
  				var source = mxEvent.getSource(evt);
  				
  				if (graph.container != null && graph.isEnabled() && !graph.isMouseDown && !graph.isEditing() &&
  					this.dialog == null && source.nodeName != 'INPUT' && source.nodeName != 'TEXTAREA')
  				{
  					if (evt.keyCode == 224 /* FF */ || (!mxClient.IS_MAC && evt.keyCode == 17 /* Control */) ||
  						(mxClient.IS_MAC && evt.keyCode == 91 /* Meta */))
  					{
  						// Cannot use parentNode for check in IE
  						if (!restoreFocus)
  						{
  							// Avoid autoscroll but allow handling of all pass-through ctrl shortcuts
  							textInput.style.left = (graph.container.scrollLeft + 10) + 'px';
  							textInput.style.top = (graph.container.scrollTop + 10) + 'px';
  							
  							graph.container.appendChild(textInput);
  							restoreFocus = true;
  							
  							// Workaround for selected document content in quirks mode
  							if (mxClient.IS_QUIRKS)
  							{
  								window.setTimeout(function()
  								{
  									textInput.focus();
  									document.execCommand('selectAll', false, null);
  								}, 0);
  							}
  							else
  							{
  								textInput.focus();
  								document.execCommand('selectAll', false, null);
  							}
  						}
  					}
  				}
  			}));
  
  			// Clears input and restores focus and selection
  			function clearInput()
  			{
  				window.setTimeout(function()
  				{
  					textInput.innerHTML = '&nbsp;';
  					textInput.focus();
  					document.execCommand('selectAll', false, null);
  				}, 0);
  			};
  			
  			mxEvent.addListener(document, 'keyup', mxUtils.bind(this, function(evt)
  			{
  				// Workaround for asynchronous event read invalid in IE quirks mode
  				var keyCode = evt.keyCode;
  				
  				// Asynchronous workaround for scroll to origin after paste if the
  				// Ctrl-key is not pressed for long enough in FF on Windows
  				window.setTimeout(mxUtils.bind(this, function()
  				{
  					if (restoreFocus && (keyCode == 224 /* FF */ || keyCode == 17 /* Control */ ||
  						keyCode == 91 /* Meta */))
  					{
  						restoreFocus = false;
  						
  						if (!graph.isEditing() && this.dialog == null && graph.container != null)
  						{
  							graph.container.focus();
  						}
  						
  						textInput.parentNode.removeChild(textInput);
  						
  						// Workaround for lost cursor in focused element
  						if (this.dialog == null)
  						{
  							mxUtils.clearSelection();
  						}
  					}
  				}), 0);
  			}));
  
  			mxEvent.addListener(textInput, 'copy', mxUtils.bind(this, function(evt)
  			{
  				if (graph.isEnabled())
  				{
  					mxClipboard.copy(graph);
  					this.copyCells(textInput);
  					clearInput();
  				}
  			}));
  			
  			mxEvent.addListener(textInput, 'cut', mxUtils.bind(this, function(evt)
  			{
  				if (graph.isEnabled())
  				{
  					mxClipboard.copy(graph);
  					this.copyCells(textInput, true);
  					clearInput();
  				}
  			}));
  			
  			mxEvent.addListener(textInput, 'paste', mxUtils.bind(this, function(evt)
  			{
  				if (graph.isEnabled() && !graph.isCellLocked(graph.getDefaultParent()))
  				{
  					textInput.innerHTML = '&nbsp;';
  					textInput.focus();
  					
  					window.setTimeout(mxUtils.bind(this, function()
  					{
  						this.pasteCells(evt, textInput);
  						textInput.innerHTML = '&nbsp;';
  					}), 0);
  				}
  			}), true);
  			
  			// Needed for IE11
  			var isSelectionAllowed2 = this.isSelectionAllowed;
  			this.isSelectionAllowed = function(evt)
  			{
  				if (mxEvent.getSource(evt) == textInput)
  				{
  					return true;
  				}
  
  				return isSelectionAllowed2.apply(this, arguments);
  			};
  		};
  
  		var y = Math.max(document.body.clientHeight || 0, document.documentElement.clientHeight || 0) / 2;
  		var x = document.body.clientWidth / 2 - 2;
  	
  		// Holds the x-coordinate of the point
  		this.spinner = this.createSpinner(x, y, 24);
  		
  		// Installs drag and drop handler for rich text editor
  		if (Graph.fileSupport)
  		{
  			this.editor.graph.addListener(mxEvent.EDITING_STARTED, mxUtils.bind(this, function(evt)
  			{
  				// Setup the dnd listeners
  				var graph = this.editor.graph;
  				var textElt = graph.cellEditor.text2;
  				var dropElt = null;
  				
  				if (textElt != null)
  				{
  					mxEvent.addListener(textElt, 'dragleave', function(evt)
  					{
  						if (dropElt != null)
  					    {
  					    	dropElt.parentNode.removeChild(dropElt);
  					    	dropElt = null;
  					    }
  					    
  						evt.stopPropagation();
  						evt.preventDefault();
  					});
  					
  					mxEvent.addListener(textElt, 'dragover', mxUtils.bind(this, function(evt)
  					{
  						// IE 10 does not implement pointer-events so it can't have a drop highlight
  						if (dropElt == null && (!mxClient.IS_IE || document.documentMode > 10))
  						{
  							dropElt = this.highlightElement(textElt);
  						}
  						
  						evt.stopPropagation();
  						evt.preventDefault();
  					}));
  					
  					mxEvent.addListener(textElt, 'drop', mxUtils.bind(this, function(evt)
  					{
  					    if (dropElt != null)
  					    {
  					    	dropElt.parentNode.removeChild(dropElt);
  					    	dropElt = null;
  					    }
  
  					    if (evt.dataTransfer.files.length > 0)
  					    {
  					    	this.importFiles(evt.dataTransfer.files, 0, 0, this.maxImageSize, function(data, mimeType, x, y, w, h)
  					    	{
  					    		// Inserts image into current text box
  					    		graph.insertImage(data, w, h);
  					    	}, function()
  					    	{
  					    		// No post processing
  					    	}, function(file)
  					    	{
  					    		// Handles only images
  					    		return file.type.substring(0, 6) == 'image/';
  					    	}, function(queue)
  					    	{
  					    		// Invokes elements of queue in order
  					    		for (var i = 0; i < queue.length; i++)
  					    		{
  					    			queue[i]();
  					    		}
  					    	}, mxEvent.isControlDown(evt));
  			    		}
  					    else if (mxUtils.indexOf(evt.dataTransfer.types, 'text/uri-list') >= 0)
  					    {
  					    	var uri = evt.dataTransfer.getData('text/uri-list');
  					    	
  					    	if ((/\.(gif|jpg|jpeg|tiff|png|svg)$/i).test(uri))
  							{
  				    			this.loadImage(decodeURIComponent(uri), mxUtils.bind(this, function(img)
  				    			{
  				    				var w = Math.max(1, img.width);
  			    					var h = Math.max(1, img.height);
  			    					var maxSize = this.maxImageSize;
  
  				    				var s = Math.min(1, Math.min(maxSize / Math.max(1, w)), maxSize / Math.max(1, h));
  				    				graph.insertImage(decodeURIComponent(uri), w * s, h * s);
  				    			}));
  							}
  							else
  							{
  								document.execCommand('insertHTML', false, evt.dataTransfer.getData('text/plain'));
  							}
  					    }
  					    else
  					    {
  					    	if (mxUtils.indexOf(evt.dataTransfer.types, 'text/html') >= 0)
  						    {
  					    		document.execCommand('insertHTML', false, evt.dataTransfer.getData('text/html'));
  						    }
  						    else if (mxUtils.indexOf(evt.dataTransfer.types, 'text/plain') >= 0)
  						    {
  						    	document.execCommand('insertHTML', false, evt.dataTransfer.getData('text/plain'));
  						    }
  					    }
  	
  					    evt.stopPropagation();
  					    evt.preventDefault();
  					}));
  				}
  			}));
  		}
  		
  		//Add ruler in test mode only
  		//TODO add the ruler containers correctly and make the vertical one dynamic as the side panel size can change
  		if (urlParams['ruler'] == '1' && typeof mxRuler !== 'undefined')
  		{
  			var hRulerDiv = document.createElement('div');
  			hRulerDiv.style.position = 'absolute';
  			hRulerDiv.style.top = '95px';
  			hRulerDiv.style.left = '250px';
  			hRulerDiv.style.width = '2000px';
  			hRulerDiv.style.height = '30px';
  			hRulerDiv.style.background = 'whiteSmoke';
  			document.body.appendChild(hRulerDiv);
  			
  			var vRulerDiv = document.createElement('div');
  			vRulerDiv.style.position = 'absolute';
  			vRulerDiv.style.top = '125px';
  			vRulerDiv.style.left = '220px';
  			vRulerDiv.style.width = '30px';
  			vRulerDiv.style.height = '1000px';
  			vRulerDiv.style.background = 'whiteSmoke';
  			document.body.appendChild(vRulerDiv);
  
  			var square = document.createElement('div');
  			square.style.position = 'absolute';
  			square.style.top = '95px';
  			square.style.left = '220px';
  			square.style.width = '30px';
  			square.style.height = '30px';
  			square.style.background = 'whiteSmoke';
  			document.body.appendChild(square);
  
  			this.vRuler = new mxRuler(this.editor.graph, vRulerDiv, true);
  			this.hRuler = new mxRuler(this.editor.graph, hRulerDiv, false);
  		}
  		
  		// Adds an element to edit the style in the footer in test mode
  		if (urlParams['test'] == '1')
  		{
  			var footer = document.getElementById('geFooter');
  
  			if (footer != null)
  			{
  				this.styleInput = document.createElement('input');
  				this.styleInput.setAttribute('type', 'text');
  				this.styleInput.style.position = 'absolute';
  				this.styleInput.style.top = '14px';
  				this.styleInput.style.left = '2px';
  				// Workaround for ignore right CSS property in FF
  				this.styleInput.style.width = '98%';
  				this.styleInput.style.visibility = 'hidden';
  				this.styleInput.style.opacity = '0.9';
  
  				mxEvent.addListener(this.styleInput, 'change', mxUtils.bind(this, function()
  				{
  					this.editor.graph.getModel().setStyle(this.editor.graph.getSelectionCell(), this.styleInput.value);
  				}));
  
  				footer.appendChild(this.styleInput);
  
  				this.editor.graph.getSelectionModel().addListener(mxEvent.CHANGE, mxUtils.bind(this, function(sender, evt)
  				{
  					if (this.editor.graph.getSelectionCount() > 0)
  					{
  						var cell = this.editor.graph.getSelectionCell();
  						var style = this.editor.graph.getModel().getStyle(cell);
  
  						this.styleInput.value = style || '';
  						this.styleInput.style.visibility = 'visible';
  					} else
  					{
  						this.styleInput.style.visibility = 'hidden';
  					}
  				}));
  			}
  
  			var isSelectionAllowed = this.isSelectionAllowed;
  			this.isSelectionAllowed = function(evt)
  			{
  				if (mxEvent.getSource(evt) == this.styleInput)
  				{
  					return true;
  				}
  
  				return isSelectionAllowed.apply(this, arguments);
  			};
  		}
  
  		// Removes info text in page
  		var info = document.getElementById('geInfo');
  
  		if (info != null)
  		{
  			info.parentNode.removeChild(info);
  		}
  
  		// Installs drag and drop handler for files
  		// Enables dropping files
  		if (Graph.fileSupport && (!this.editor.chromeless || this.editor.editable))
  		{
  			// Setup the dnd listeners
  			var dropElt = null;
  
  			mxEvent.addListener(graph.container, 'dragleave', function(evt)
  			{
  				if (graph.isEnabled())
  				{
  					if (dropElt != null)
  				    {
  				    	dropElt.parentNode.removeChild(dropElt);
  				    	dropElt = null;
  				    }
  				    
  					evt.stopPropagation();
  					evt.preventDefault();
  				}
  			});
  			
  			mxEvent.addListener(graph.container, 'dragover', mxUtils.bind(this, function(evt)
  			{
  				// IE 10 does not implement pointer-events so it can't have a drop highlight
  				if (dropElt == null && (!mxClient.IS_IE || document.documentMode > 10))
  				{
  					dropElt = this.highlightElement(graph.container);
  				}
  				
  				if (this.sidebar != null)
  				{
  					this.sidebar.hideTooltip();
  				}
  
  				evt.stopPropagation();
  				evt.preventDefault();
  			}));
  			
  			mxEvent.addListener(graph.container, 'drop', mxUtils.bind(this, function(evt)
  			{
  			    if (dropElt != null)
  			    {
  			    	dropElt.parentNode.removeChild(dropElt);
  			    	dropElt = null;
  			    }
  			    
  				if (graph.isEnabled())
  				{
  				    var pt = mxUtils.convertPoint(graph.container, mxEvent.getClientX(evt), mxEvent.getClientY(evt));
  					var tr = graph.view.translate;
  					var scale = graph.view.scale;
  					var x = pt.x / scale - tr.x;
  					var y = pt.y / scale - tr.y;
  					
  					if (mxEvent.isAltDown(evt))
  					{
  						x = 0;
  						y = 0;
  					}
  					
  				    if (evt.dataTransfer.files.length > 0)
  				    {
  						this.importFiles(evt.dataTransfer.files, x, y, this.maxImageSize, null, null, null, null,
  							mxEvent.isControlDown(evt), null, null, mxEvent.isShiftDown(evt));
  		    		}
  				    else
  				    {
  				    	var uri = (mxUtils.indexOf(evt.dataTransfer.types, 'text/uri-list') >= 0) ?
  				    		evt.dataTransfer.getData('text/uri-list') : null;
  				    	var data = this.extractGraphModelFromEvent(evt, this.pages != null);
  				    	
  				    	if (data != null)
  				    	{
  				    		graph.setSelectionCells(this.importXml(data, x, y, true));
  				    	}
  				    	else if (mxUtils.indexOf(evt.dataTransfer.types, 'text/html') >= 0)
  					    {
  				    		var html = evt.dataTransfer.getData('text/html');
  				    		var div = document.createElement('div');
  				    		div.innerHTML = html;
  				    		
  				    		// The default is based on the extension
  				    		var asImage = null;
  				    		
  				    		// Extracts single image
  				    		var imgs = div.getElementsByTagName('img');
  
  				    		if (imgs != null && imgs.length == 1)
  				    		{
  				    			html = imgs[0].getAttribute('src');
  				    			
  				    			// Handles special case where the src attribute has no valid extension
  				    			// in which case the text would be inserted as text with a link
  				    			if (!(/\.(gif|jpg|jpeg|tiff|png|svg)$/i).test(html))
  				    			{
  				    				asImage = true;
  				    			}
  				    		}
  				    		else
  				    		{
  				    			// Extracts single link
  				    			var a = div.getElementsByTagName('a');
  
  				    			if (a != null && a.length == 1)
  				    			{
  				    				html = a[0].getAttribute('href');
  				    			}
  				    		}
  				    		
  				    		var resizeImages = true;
  				    		
  				    		var doInsert = mxUtils.bind(this, function()
  				    		{
  				    			graph.setSelectionCells(this.insertTextAt(html, x, y, true, asImage, null, resizeImages));
  				    		});
  				    		
  				    		if (asImage && html.length > this.resampleThreshold)
  				    		{
  				    			this.confirmImageResize(function(doResize)
  		    					{
  		    						resizeImages = doResize;
  		    						doInsert();
  		    					}, mxEvent.isControlDown(evt));
  				    		}
  				    		else
  			    			{
  				    			doInsert();
  			    			}
  					    }
  				    	else if (uri != null && (/\.(gif|jpg|jpeg|tiff|png|svg)$/i).test(uri))
  						{
  			    			this.loadImage(decodeURIComponent(uri), mxUtils.bind(this, function(img)
  			    			{
  			    				var w = Math.max(1, img.width);
  		    					var h = Math.max(1, img.height);
  		    					var maxSize = this.maxImageSize;
  
  			    				var s = Math.min(1, Math.min(maxSize / Math.max(1, w)), maxSize / Math.max(1, h));
  
  			    				graph.setSelectionCell(graph.insertVertex(null, null, '', x, y, w * s, h * s,
  			    					'shape=image;verticalLabelPosition=bottom;labelBackgroundColor=#ffffff;' +
  			    					'verticalAlign=top;aspect=fixed;imageAspect=0;image=' + uri + ';'));
  			    			}), mxUtils.bind(this, function(img)
  			    			{
  			    				graph.setSelectionCells(this.insertTextAt(uri, x, y, true));
  			    			}));
  						}
  					    else if (mxUtils.indexOf(evt.dataTransfer.types, 'text/plain') >= 0)
  					    {
  					    	graph.setSelectionCells(this.insertTextAt(evt.dataTransfer.getData('text/plain'), x, y, true));
  					    }
  					}
  				}
  
  			    evt.stopPropagation();
  			    evt.preventDefault();
  			}), false);
  		}
  
  		this.initPages();
  		
  		// Embedded mode
  		if (urlParams['embed'] == '1')
  		{
  			this.initializeEmbedMode();
  		}
  		
  		this.installSettings();
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.getLinkTitle = function(href)
  	{
  		var title = Graph.prototype.getLinkTitle.apply(this, arguments);
  
  		if (href.substring(0, 13) == 'data:page/id,')
  		{
  			var comma = href.indexOf(',');
  	
  			if (comma > 0)
  			{
  				var page = this.getPageById(href.substring(comma + 1));
  	
  				if (page != null)
  				{
  					title = page.getName();
  				}
  				else
  				{
  					title = mxResources.get('pageNotFound');
  				}
  			}
  		}
  		else if (href.substring(0, 5) == 'data:')
  		{
  			title = mxResources.get('action');
  		}
  		
  		return title;
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.handleCustomLink = function(href)
  	{
  		if (href.substring(0, 13) == 'data:page/id,')
  		{
  			var comma = href.indexOf(',');
  			var page = this.getPageById(href.substring(comma + 1));
  			
  			if (page)
  			{
  				this.selectPage(page)
  			}
  			else
  			{
  				// Needs fallback for missing resource in case of viewer lightbox
  				throw new Error(mxResources.get('pageNotFound') || 'Page not found');
  			}
  		}
  		else
  		{
  			this.editor.graph.handleCustomLink(href);
  		}
  	};
  	
  	/**
  	 * 
  	 */
  	EditorUi.prototype.isSettingsEnabled = function()
  	{
  		return typeof window.mxSettings !== 'undefined' && (isLocalStorage || mxClient.IS_CHROMEAPP);
  	};
  
  	/**
  	 * Creates the format panel and adds overrides.
  	 */
  	EditorUi.prototype.installSettings = function()
  	{
  		if (this.isSettingsEnabled())
  		{
  			// Gets recent colors from settings
  			ColorDialog.recentColors = mxSettings.getRecentColors();
  
  			/**
  			 * Persists current edge style.
  			 */
  			this.editor.graph.currentEdgeStyle = mxSettings.getCurrentEdgeStyle();
  			this.editor.graph.currentVertexStyle = mxSettings.getCurrentVertexStyle();
  			
  			// Updates UI to reflect current edge style
  			this.fireEvent(new mxEventObject('styleChanged', 'keys', [], 'values', [], 'cells', []));
  			
  			this.addListener('styleChanged', mxUtils.bind(this, function(sender, evt)
  			{
  				if (this.persistCurrentEdgeStyle)
  				{
  					mxSettings.setCurrentEdgeStyle(this.editor.graph.currentEdgeStyle);
  					mxSettings.save();
  				}
  				
  				if (this.persistCurrentVertexStyle)
  				{
  					mxSettings.setCurrentVertexStyle(this.editor.graph.currentVertexStyle);
  					mxSettings.save();
  				}
  			}));
  
  			/**
  			 * Persists copy on connect switch.
  			 */
  			this.editor.graph.connectionHandler.setCreateTarget(mxSettings.isCreateTarget());
  			this.fireEvent(new mxEventObject('copyConnectChanged'));
  			
  			this.addListener('copyConnectChanged', mxUtils.bind(this, function(sender, evt)
  			{
  				mxSettings.setCreateTarget(this.editor.graph.connectionHandler.isCreateTarget());
  				mxSettings.save();
  			}));
  			
  			/**
  			 * Persists default page format.
  			 */
  			this.editor.graph.pageFormat = mxSettings.getPageFormat();
  			
  			this.addListener('pageFormatChanged', mxUtils.bind(this, function(sender, evt)
  			{
  				mxSettings.setPageFormat(this.editor.graph.pageFormat);
  				mxSettings.save();
  			}));
  			
  			/**
  			 * Persists default grid color.
  			 */
  			this.editor.graph.view.gridColor = mxSettings.getGridColor();
  			
  			this.addListener('gridColorChanged', mxUtils.bind(this, function(sender, evt)
  			{
  				mxSettings.setGridColor(this.editor.graph.view.gridColor);
  				mxSettings.save();
  			}));
  
  			/**
  			 * Persists autosave switch in Chrome app.
  			 */
  			if (mxClient.IS_CHROMEAPP || EditorUi.isElectronApp)
  			{
  				this.editor.addListener('autosaveChanged', mxUtils.bind(this, function(sender, evt)
  				{
  					mxSettings.setAutosave(this.editor.autosave);
  					mxSettings.save();
  				}));
  				
  				this.editor.autosave = mxSettings.getAutosave();
  			}
  			
  			/**
  			 * 
  			 */
  			if (this.sidebar != null)
  			{
  				this.sidebar.showPalette('search', mxSettings.settings.search);
  			}
  			
  			/**
  			 * Shows scratchpad if never shown.
  			 */
  			if ((!this.editor.chromeless || this.editor.editable) &&
  				this.sidebar != null && (mxSettings.settings.isNew ||
  				parseInt(mxSettings.settings.version || 0) <= 8))
  			{
  				this.toggleScratchpad();
  				mxSettings.save();
  			}
  
  			// Saves app defaults for UI
  			this.addListener('formatWidthChanged', function()
  			{
  				mxSettings.setFormatWidth(this.formatWidth);
  				mxSettings.save();
  			});
  		}
  	};
  	
  	/**
  	 * Creates the format panel and adds overrides.
  	 */
  	EditorUi.prototype.copyCells = function(elt, removeCells)
  	{
  		var graph = this.editor.graph;
  		
  		if (!graph.isSelectionEmpty())
  		{
  			var cells = mxUtils.sortCells(graph.model.getTopmostCells(graph.getSelectionCells()));
  			
  			// LATER: Add span with XML in data attribute
  			// var span = document.createElement('span');
  			// span.setAttribute('data-jgraph-type', 'application/vnd.jgraph.xml');
  			// span.setAttribute('data-jgraph-content', mxUtils.getXml(graph.encodeCells(clones)));
  			
  			// Fixes cross-platform clipboard UTF8 issues by encoding as URI
  			var xml = mxUtils.getXml(this.editor.graph.encodeCells(cells));
  			mxUtils.setTextContent(elt, encodeURIComponent(xml));
  			
  			if (removeCells)
  			{
  				graph.removeCells(cells, false);
  				graph.lastPasteXml = null;
  			}
  			else
  			{
  				graph.lastPasteXml = xml;
  				graph.pasteCounter = 0;
  			}
  
  			elt.focus();
  			document.execCommand('selectAll', false, null);
  		}
  		else
  		{
  			// Disables copy on focused element
  			elt.innerHTML = '';
  		}
  	};
  	
  	/**
  	 * Creates the format panel and adds overrides.
  	 */
  	EditorUi.prototype.pasteCells = function(evt, elt)
  	{
  		if (!mxEvent.isConsumed(evt))
  		{
  			var spans = elt.getElementsByTagName('span');
  		
  			if (spans != null && spans.length > 0 && spans[0].getAttribute('data-lucid-type') ===
  				'application/vnd.lucid.chart.objects')
  			{
  				var content = spans[0].getAttribute('data-lucid-content');
  				
  				if (content != null && content.length > 0)
  				{
  					this.convertLucidChart(content, mxUtils.bind(this, function(xml)
  					{
  						this.editor.graph.setSelectionCells(this.importXml(xml, 0, 0));
  					}), mxUtils.bind(this, function(e)
  					{
  						this.handleError(e);
  					}));
  			
  					mxEvent.consume(evt);
  				}
  			}
  			else
  			{
  				var graph = this.editor.graph;
  				var xml = mxUtils.trim((mxClient.IS_QUIRKS || document.documentMode == 8) ?
  					mxUtils.getTextContent(elt) : elt.textContent);
  				var compat = false;
  	
  				// Workaround for junk after XML in VM
  				try
  				{
  					var idx = xml.lastIndexOf('%3E');
  					
  					if (idx >= 0 && idx < xml.length - 3)
  					{
  						xml = xml.substring(0, idx + 3);
  					}
  				}
  				catch (e)
  				{
  					// ignore
  				}
  				
  				// Checks for embedded XML content
  				try
  				{
  					var spans = elt.getElementsByTagName('span');
  					var tmp = (spans != null && spans.length > 0) ? 
  						mxUtils.trim(decodeURIComponent(spans[0].textContent)) :
  						decodeURIComponent(xml);
  							
  					if (this.isCompatibleString(tmp))
  					{
  						compat = true;
  						xml = tmp;
  					}
  				}
  				catch (e)
  				{
  					// ignore
  				}
  				
  				if (graph.lastPasteXml == xml)
  				{
  					graph.pasteCounter++;
  				}
  				else
  				{
  					graph.lastPasteXml = xml;
  					graph.pasteCounter = 0;
  				}
  				
  				var dx = graph.pasteCounter * graph.gridSize;
  				
  				if (xml != null && xml.length > 0)
  				{
  					if (compat || this.isCompatibleString(xml))
  					{
  						graph.setSelectionCells(this.importXml(xml, dx, dx));
  					}
  					else
  					{
  						var pt = graph.getInsertPoint();
  						
  						if (graph.isMouseInsertPoint())
  						{
  							dx = 0;
  							
  							// No offset for insert at mouse position
  							if (graph.lastPasteXml == xml && graph.pasteCounter > 0)
  							{
  								graph.pasteCounter--;
  							}
  						}
  						
  						graph.setSelectionCells(this.insertTextAt(xml, pt.x + dx, pt.y + dx, true));
  					}
  					
  					if (!graph.isSelectionEmpty())
  					{
  						graph.scrollCellToVisible(graph.getSelectionCell());
  					
  						if (this.hoverIcons != null)
  						{
  							this.hoverIcons.update(graph.view.getState(graph.getSelectionCell()));
  						}
  						
  						try
  						{
  							mxEvent.consume(evt);
  						}
  						catch (e)
  						{
  							// ignore event no longer exists in async handler in IE8-
  						}
  					}
  				}
  			}
  		}
  	};
  
  	/**
  	 * Adds a file drop handler for opening local files.
  	 */
  	EditorUi.prototype.addFileDropHandler = function(elts)
  	{
  		// Installs drag and drop handler for files
  		if (Graph.fileSupport)
  		{
  			var dropElt = null;
  			
  			for (var i = 0; i < elts.length; i++)
  			{
  				// Setup the dnd listeners
  				mxEvent.addListener(elts[i], 'dragleave', function(evt)
  				{
  					if (dropElt != null)
  				    {
  				    	dropElt.parentNode.removeChild(dropElt);
  				    	dropElt = null;
  				    }
  					
  					evt.stopPropagation();
  					evt.preventDefault();
  				});
  		
  				mxEvent.addListener(elts[i], 'dragover', mxUtils.bind(this, function(evt)
  				{
  					if (this.editor.graph.isEnabled() || urlParams['embed'] != '1')
  					{
  						// IE 10 does not implement pointer-events so it can't have a drop highlight
  						if (dropElt == null && (!mxClient.IS_IE || (document.documentMode > 10 && document.documentMode < 12)))
  						{
  							dropElt = this.highlightElement();
  						}
  					}
  
  					evt.stopPropagation();
  					evt.preventDefault();
  				}));
  				
  				mxEvent.addListener(elts[i], 'drop', mxUtils.bind(this, function(evt)
  				{
  					if (dropElt != null)
  				    {
  					    dropElt.parentNode.removeChild(dropElt);
  					    dropElt = null;
  				    }
  					
  					if (this.editor.graph.isEnabled() || urlParams['embed'] != '1')
  					{
  						if (evt.dataTransfer.files.length > 0)
  						{
  							this.hideDialog();
  							
  							// Never open files in embed mode
  							if (urlParams['embed'] == '1')
  							{
  								this.importFiles(evt.dataTransfer.files, 0, 0, this.maxImageSize, null, null,
  									null, null, !mxEvent.isControlDown(evt) && !mxEvent.isShiftDown(evt));
  							}
  							else
  							{
  								this.openFiles(evt.dataTransfer.files, true);
  							}
  						}
  						else
  						{
  							// Handles open special files via text drag and drop
  							var data = this.extractGraphModelFromEvent(evt);
  							
  							// Tries additional and async parsing of text content such as HTML, Gliffy data
  							if (data == null)
  							{
  								var provider = (evt.dataTransfer != null) ? evt.dataTransfer : evt.clipboardData;
  							
  								if (provider != null)
  								{
  									if (document.documentMode == 10 || document.documentMode == 11)
  									{
  										data = provider.getData('Text');
  									}
  									else
  									{
  								    	var data = null;
  								    	
  								    	if (mxUtils.indexOf(provider.types, 'text/uri-list') >= 0)
  								    	{
  								    		var data = evt.dataTransfer.getData('text/uri-list');
  								    	}
  								    	else
  								    	{
  								    		data = (mxUtils.indexOf(provider.types, 'text/html') >= 0) ? provider.getData('text/html') : null;
  								    	}
  										
  										if (data != null && data.length > 0)
  										{
  											var div = document.createElement('div');
  								    		div.innerHTML = data;
  		
  								    		// Extracts single image
  								    		var imgs = div.getElementsByTagName('img');
  								    		
  								    		if (imgs.length > 0)
  								    		{
  								    			data = imgs[0].getAttribute('src');
  								    		}
  										}
  										else if (mxUtils.indexOf(provider.types, 'text/plain') >= 0)
  										{
  											data = provider.getData('text/plain');
  										}
  									}
  									
  									if (data != null)
  									{
  										// Checks for embedded XML in PNG
  										if (data.substring(0, 22) == 'data:image/png;base64,')
  										{
  											var xml = this.extractGraphModelFromPng(data);
  											
  											if (xml != null && xml.length > 0)
  											{
  												this.openLocalFile(xml, null, true);
  											}
  										}
  										else if (!this.isOffline() && this.isRemoteFileFormat(data))
  										{
  								    		new mxXmlRequest(OPEN_URL, 'format=xml&data=' + encodeURIComponent(data)).send(mxUtils.bind(this, function(req)
  											{
  								    			if (req.getStatus() >= 200 && req.getStatus() <= 299)
  								    			{
  								    				this.openLocalFile(req.getText(), null, true);
  								    			}
  											}));
  										}
  										else if (/^https?:\/\//.test(data))
  										{
  											if (this.getCurrentFile() == null)
  											{
  												window.location.hash = '#U' + encodeURIComponent(data);
  											}
  											else
  											{
  												window.openWindow(((mxClient.IS_CHROMEAPP) ?
  													'https://www.draw.io/' : 'https://' + location.host + '/') +
  													window.location.search + '#U' + encodeURIComponent(data));
  											}
  										}
  									}
  								}
  							}
  							else
  							{
  								this.openLocalFile(data, null, true);
  							}
  						}
  					}
  
  					evt.stopPropagation();
  					evt.preventDefault();
  				}));
  			}
  		}
  	};
  	
  	/**
  	 * Highlights the given element
  	 */
  	EditorUi.prototype.highlightElement = function(elt)
  	{
  		var x = 0;
  		var y = 0;
  		var w = 0;
  		var h = 0;
  		
  		if (elt == null)
  		{
  			var b = document.body;
  			var d = document.documentElement;
  		
  			w = (b.clientWidth || d.clientWidth) - 3;
  			h = Math.max(b.clientHeight || 0, d.clientHeight) - 3;
  		}
  		else
  		{
  			x = elt.offsetTop;
  			y = elt.offsetLeft;
  			w = elt.clientWidth;
  			h = elt.clientHeight;
  		}
  		
  		var hl = document.createElement('div');
  		hl.style.zIndex = mxPopupMenu.prototype.zIndex + 2;
  		hl.style.border = '3px dotted rgb(254, 137, 12)';
  		hl.style.pointerEvents = 'none';
  		hl.style.position = 'absolute';
  		hl.style.top = x + 'px';
  		hl.style.left = y + 'px';
  		hl.style.width = Math.max(0, w - 3) + 'px';
  		hl.style.height = Math.max(0, h - 3) + 'px';
  		
  		if (elt != null && elt.parentNode == this.editor.graph.container)
  		{
  			this.editor.graph.container.appendChild(hl);
  		}
  		else
  		{
  			document.body.appendChild(hl);
  		}
  		
  		return hl;
  	};
  	
  	/**
  	 * Highlights the given element
  	 */
  	EditorUi.prototype.stringToCells = function(xml)
  	{
  		var doc = mxUtils.parseXml(xml);
  		var node = this.editor.extractGraphModel(doc.documentElement);
  		var cells = [];
  		
  		if (node != null)
  		{
  			var codec = new mxCodec(node.ownerDocument);
  			var model = new mxGraphModel();
  			codec.decode(node, model);
  			
  			var parent = model.getChildAt(model.getRoot(), 0);
  			
  			for (var j = 0; j < model.getChildCount(parent); j++)
  			{
  				cells.push(model.getChildAt(parent, j));
  			}
  		}
  		
  		return cells;
  	};
  	
  	/**
  	 * Opens the given files in the editor.
  	 */
  	EditorUi.prototype.openFiles = function(files, temp)
  	{
  		if (this.spinner.spin(document.body, mxResources.get('loading')))
  		{
  			for (var i = 0; i < files.length; i++)
  			{
  				(mxUtils.bind(this, function(file)
  				{
  					var reader = new FileReader();
  				
  					reader.onload = mxUtils.bind(this, function(e)
  					{
  						var data = e.target.result;
  						var name = file.name;
  						
  						if (name != null && name.length > 0)
  						{
  							if (!this.useCanvasForExport && /(\.png)$/i.test(name))
  							{
  								name = name.substring(0, name.length - 4) + '.xml';
  							}
  							
  							var handleResult = mxUtils.bind(this, function(xml)
  							{
  								var dot = name.lastIndexOf('.');
  								
  								if (dot >= 0)
  								{
  									name = name.substring(0, name.lastIndexOf('.')) + '.xml';
  								}
  								else
  								{
  									name = name + '.xml';
  								}
  								
  								if (xml.substring(0, 10) == '<mxlibrary')
  								{
  									// Creates new temporary file if library is dropped in splash screen
  									if (this.getCurrentFile() == null && urlParams['embed'] != '1')
  									{
  										this.openLocalFile(this.emptyDiagramXml, this.defaultFilename, temp);
  									}
  								
  				    				try
  					    			{
  				    					this.loadLibrary(new LocalLibrary(this, xml, name));
  					    			}
  				    				catch (e)
  					    			{
  					    				this.handleError(e, mxResources.get('errorLoadingFile'));
  					    			}
  								}
  								else
  								{
  									this.openLocalFile(xml, name, temp);
  								}
  							});
  							
  							if  (/(\.vsdx?)($|\?)/i.test(name) || /(\.vssx?)($|\?)/i.test(name))
  							{
  								this.importVisio(file, mxUtils.bind(this, function(xml)
  								{
  									this.spinner.stop();
  									handleResult(xml);
  								}));
  							}
  							else if (Graph.fileSupport && !this.isOffline() && new XMLHttpRequest().upload &&
  								this.isRemoteFileFormat(data, name))
  							{
  								this.parseFile(file, mxUtils.bind(this, function(xhr)
  								{
  									if (xhr.readyState == 4)
  									{
  										this.spinner.stop();
  										
  										if (xhr.status >= 200 && xhr.status <= 299)
  										{
  											handleResult(xhr.responseText);
  										}
  										else
  										{
  											this.handleError({message: mxResources.get((xhr.status == 413) ?
  			            						'drawingTooLarge' : 'invalidOrMissingFile')},
  			            						mxResources.get('errorLoadingFile'));
  										}
  									}
  								}));
  							}
  							else if (this.isLucidChartData(data))
  							{
  								if (/(\.json)$/i.test(name))
  								{
  									name = name.substring(0, name.length - 5) + '.xml';
  								}
  
  								// LATER: Add import step that produces cells and use callback
  								this.convertLucidChart(data, mxUtils.bind(this, function(xml)
  								{
  									this.spinner.stop();
  									this.openLocalFile(xml, name, temp);
  								}), mxUtils.bind(this, function(e)
  								{
  									this.spinner.stop();
  									this.handleError(e);
  								}));
  							}
  							else if (e.target.result.substring(0, 10) == '<mxlibrary')
  			    			{
  								this.spinner.stop();
  								
  								// Creates new temporary file if library is dropped in splash screen
  								if (this.getCurrentFile() == null && urlParams['embed'] != '1')
  								{
  									this.openLocalFile(this.emptyDiagramXml, this.defaultFilename, temp);
  								}
  								
  			    				try
  				    			{
  				    				this.loadLibrary(new LocalLibrary(this, e.target.result, file.name));
  				    			}
  				    			catch (e)
  				    			{
  				    				this.handleError(e, mxResources.get('errorLoadingFile'));
  				    			}
  			    			}
  							else
  							{
  								if (file.type.substring(0, 9) == 'image/png')
  								{
  									data = this.extractGraphModelFromPng(data);
  								}
  								
  								this.spinner.stop();
  								this.openLocalFile(data, name, temp);
  							}
  						}
  					});
  					
  					reader.onerror = mxUtils.bind(this, function(e)
  					{
  						this.spinner.stop();
  						this.handleError(e);
  						window.openFile = null;
  					});
  					
  					if (file.type.substring(0, 5) === 'image' && file.type.substring(0, 9) !== 'image/svg')
  					{
  						reader.readAsDataURL(file);
  					}
  					else
  					{
  						reader.readAsText(file);
  					}
  				}))(files[i]);
  			}
  		}
  	};
  
  	/**
  	 * Shows the layers dialog if the graph has more than one layer.
  	 */
  	EditorUi.prototype.openLocalFile = function(data, name, temp)
  	{
  		var currentFile = this.getCurrentFile();
  		
  		var fn = mxUtils.bind(this, function()
  		{
  			window.openFile = null;
  			
  			if (name == null && this.getCurrentFile() != null && this.isDiagramEmpty())
  			{
  				var doc = mxUtils.parseXml(data);
  				
  				if (doc != null)
  				{
  					this.editor.setGraphXml(doc.documentElement);
  					this.editor.graph.selectAll();
  				}
  			}
  			else
  			{
  				this.fileLoaded(new LocalFile(this, data, name || this.defaultFilename, temp));
  			}
  		});
  
  		if (data != null && data.length > 0)
  		{
  			if (currentFile == null || (!currentFile.isModified() &&
  				(mxClient.IS_CHROMEAPP || EditorUi.isElectronApp)))
  			{
  				fn();
  			}
  			else if ((mxClient.IS_CHROMEAPP || EditorUi.isElectronApp) &&
  				currentFile != null && currentFile.isModified())
  			{
  				this.confirm(mxResources.get('allChangesLost'), null, fn,
  					mxResources.get('cancel'), mxResources.get('discardChanges'));
  			}
  			else
  			{
  				window.openFile = new OpenFile(function()
  				{
  					window.openFile = null;
  				});
  				
  				window.openFile.setData(data, name);
  				window.openWindow(this.getUrl(), null, mxUtils.bind(this, function()
  				{
  					if (currentFile != null && currentFile.isModified())
  					{
  						this.confirm(mxResources.get('allChangesLost'), null, fn,
  							mxResources.get('cancel'), mxResources.get('discardChanges'));
  					}
  					else
  					{
  						fn();
  					}
  				}));
  			}
  		}
  	};
  	
  	/**
  	 * Returns a list of all shapes used in the current file.
  	 */
  	EditorUi.prototype.getBasenames = function()
  	{
  		var basenames = {};
  
  		if (this.pages != null)
  		{
  			for (var i = 0; i < this.pages.length; i++)
  			{
  				this.updatePageRoot(this.pages[i]);
  				this.addBasenamesForCell(this.pages[i].root, basenames);
  			}
  		}
  		else
  		{
  			this.addBasenamesForCell(this.editor.graph.model.getRoot(), basenames);
  		}
  		
  		var result = [];
  		
  		for (var key in basenames)
  		{
  			result.push(key);
  		}
  		
  		return result;
  	};
  		
  	/**
  	 * Returns a list of all shapes used in the current file.
  	 */
  	EditorUi.prototype.addBasenamesForCell = function(cell, basenames)
  	{
  		function addName(name)
  		{
  			if (name != null)
  			{
  				// LATER: Check if this case exists
  				var dot = name.lastIndexOf('.');
  				
  				if (dot > 0)
  				{
  					name = name.substring(dot + 1, name.length);
  				}
  				
  				if (basenames[name] == null)
  				{
  					basenames[name] = true;
  				}
  			}
  		};
  		
  		var graph = this.editor.graph;
  		var style = graph.getCellStyle(cell);
  		var shape = style[mxConstants.STYLE_SHAPE];
  		addName(mxStencilRegistry.getBasenameForStencil(shape));
  		
  		// Adds package names for markers in edges
  		if (graph.model.isEdge(cell))
  		{
  			addName(mxMarker.getPackageForType(style[mxConstants.STYLE_STARTARROW]));
  			addName(mxMarker.getPackageForType(style[mxConstants.STYLE_ENDARROW]));
  		}
  
  		var childCount = graph.model.getChildCount(cell);
  		
  		for (var i = 0; i < childCount; i++)
  		{
  			this.addBasenamesForCell(graph.model.getChildAt(cell, i), basenames);
  		}
  	};
  	
  	/**
  	 * Shows the layers dialog if the graph has more than one layer.
  	 */
  	EditorUi.prototype.setGraphEnabled = function(enabled)
  	{
  		this.diagramContainer.style.visibility = (enabled) ? '' : 'hidden';
  		this.formatContainer.style.visibility = (enabled) ? '' : 'hidden';
  		this.sidebarFooterContainer.style.display = (enabled) ? '' : 'none';
  		this.sidebarContainer.style.display = (enabled) ? '' : 'none';
  		this.hsplit.style.display = (enabled) ? '' : 'none';
  		this.editor.graph.setEnabled(enabled);
  		
  		if (this.tabContainer != null)
  		{
  			this.tabContainer.style.visibility = (enabled) ? '' : 'hidden';	
  		}
  		
  		if (!enabled)
  		{
              if (this.actions.outlineWindow != null)
              {
              	this.actions.outlineWindow.window.setVisible(false);
              }
  
              if (this.actions.layersWindow != null)
              {
              	this.actions.layersWindow.window.setVisible(false);
              }
  
              if (this.menus.tagsWindow != null)
              {
              	this.menus.tagsWindow.window.setVisible(false);
              }
  
              if (this.menus.findWindow != null)
              {
              	this.menus.findWindow.window.setVisible(false);
              }
  		}
  	};
  	
  	/**
  	 * Shows the layers dialog if the graph has more than one layer.
  	 */
  	EditorUi.prototype.initializeEmbedMode = function()
  	{
  		this.setGraphEnabled(false);
  		var parent = window.opener || window.parent;
  
  		if (parent != window)
  		{
  			if (urlParams['spin'] != '1' || this.spinner.spin(document.body, mxResources.get('loading')))
  			{
  				this.installMessageHandler(mxUtils.bind(this, function(xml, evt, modified)
  				{
  					this.spinner.stop();
  					this.addEmbedButtons();
  					this.setGraphEnabled(true);
  					
  					if (xml != null && xml.length > 0)
  					{
  						this.setFileData(xml);
  						
  						if (!this.editor.isChromelessView())
  						{
  							this.showLayersDialog();
  						}
  						else if (this.editor.graph.isLightboxView())
  						{
  							this.lightboxFit();
  						}
  						
  						if (this.chromelessResize)
  						{
  							this.chromelessResize();
  						}
  					}
  					else
  					{
  						this.editor.graph.model.clear();
  						this.editor.fireEvent(new mxEventObject('resetGraphView'));
  					}
  	
  					this.editor.undoManager.clear();
  					this.editor.modified = (modified != null) ? modified : false;
  					this.updateUi();
  					
  					// Workaround for no initial focus in FF
  					// (does not work in Conf Cloud with FF)
  					if (window.self !== window.top)
  					{
  						window.focus();
  					}
  					
  					if (this.format != null)
  					{
  						this.format.refresh();
  					}
  				}));
  			}
  		}
  	};
  	
  	/**
  	 * Shows the layers dialog if the graph has more than one layer.
  	 */
  	EditorUi.prototype.showLayersDialog = function()
  	{
  		if (this.editor.graph.getModel().getChildCount(this.editor.graph.getModel().getRoot()) > 1)
  		{
  			if (this.actions.layersWindow == null)
  			{
  				this.actions.get('layers').funct();
  			}
  			else
  			{
  				this.actions.layersWindow.window.setVisible(true);
  			}
  		}
  	};
  
  	/**
  	 * Tries to find a public URL for the given file.
  	 */
  	EditorUi.prototype.getPublicUrl = function(file, fn)
  	{
  		if (file != null)
  		{
  			file.getPublicUrl(fn);
  		}
  		else
  		{
  			fn(null);
  		}
  	};
  
  	/**
  	 * Adds the buttons for embedded mode.
  	 */
  	EditorUi.prototype.createLoadMessage = function(eventName)
  	{
  		var graph = this.editor.graph;
  		
  		return {event: eventName, pageVisible: graph.pageVisible, translate: graph.view.translate,
  			scale: graph.view.scale, page: graph.view.getBackgroundPageBounds(), bounds: graph.getGraphBounds()};
  	};
  	
  	/**
  	 * Adds the buttons for embedded mode.
  	 */
  	EditorUi.prototype.installMessageHandler = function(fn)
  	{
  		var changeListener = null;
  		var ignoreChange = false;
  		var autosave = false;
  		var lastData = null;
  		
  		var updateStatus = mxUtils.bind(this, function(sender, eventObject)
  		{
  			if (!this.editor.modified || urlParams['modified'] == '0')
  			{
  				this.editor.setStatus('');
  			}
  			else if (urlParams['modified'] != null)
  			{
  				this.editor.setStatus(mxUtils.htmlEntities(mxResources.get(urlParams['modified'])));
  			}
  		});
  		
  		this.editor.graph.model.addListener(mxEvent.CHANGE, updateStatus);
  		
  		// Receives XML message from opener and puts it into the graph
  		mxEvent.addListener(window, 'message', mxUtils.bind(this, function(evt)
  		{
  			var validSource = window.opener || window.parent;
  			
  			if (evt.source != validSource)
  			{
  				return;
  			}
  			
  			var data = evt.data;
  			
  			function extractDiagramXml(data)
  			{
  				if (data != null && typeof data.charAt === 'function' && data.charAt(0) != '<')
  				{
  					try
  					{	
  						if (data.substring(0, 26) == 'data:image/svg+xml;base64,')
  						{
  							data = atob(data.substring(26));
  						}
  						else if (data.substring(0, 24) == 'data:image/svg+xml;utf8,')
  						{
  							data = data.substring(24);
  						}
  						
  						if (data != null)
  						{
  							if (data.charAt(0) == '%')
  							{
  								data = decodeURIComponent(data);
  							}
  							else if (data.charAt(0) != '<')
  							{
  								data = this.editor.graph.decompress(data);
  							}
  						}
  					}
  					catch (e)
  					{
  						// ignore compression errors and use empty data
  					}
  				}
  				
  				return data;
  			};
  
  			if (urlParams['proto'] == 'json')
  			{
  				try
  				{
  					data = JSON.parse(data);
  				}
  				catch (e)
  				{
  					data = null;
  				}
  				
  				if (data == null)
  				{
  					// Ignore
  					return;
  				}
  				else if (data.action == 'dialog')
  				{
  					this.showError((data.titleKey != null) ? mxResources.get(data.titleKey) : data.title,
  						(data.messageKey != null) ? mxResources.get(data.messageKey) : data.message,
  						(data.buttonKey != null) ? mxResources.get(data.buttonKey) : data.button);
  					
  					if (data.modified != null)
  					{
  						this.editor.modified = data.modified;
  					}
  					
  					return;
  				}
  				else if (data.action == 'prompt')
  				{
  					this.spinner.stop();
  					
  					var dlg = new FilenameDialog(this, data.defaultValue || '',
  						(data.okKey != null) ? mxResources.get(data.okKey) : null, function(value)
  					{
  						if (value != null)
  						{
  							parent.postMessage(JSON.stringify({event: 'prompt', value: value, message: data}), '*');
  						}
  					}, (data.titleKey != null) ? mxResources.get(data.titleKey) : data.title);
  					this.showDialog(dlg.container, 300, 80, true, false);
  					dlg.init();
  					
  					return;
  				}
  				else if (data.action == 'draft')
  				{
  					var tmp = null;
  					
  					if (data.xml.substring(0, 22) == 'data:image/png;base64,')
  					{
  						tmp = this.extractGraphModelFromPng(data.xml);
  					}
  					else
  					{
  						tmp = extractDiagramXml(data.xml);
  					}
  					
  					this.spinner.stop();
  					
  					var dlg = new DraftDialog(this, mxResources.get('draftFound', [data.name || this.defaultFilename]),
  						tmp, mxUtils.bind(this, function()
  					{
  						this.hideDialog();
  						parent.postMessage(JSON.stringify({event: 'draft', result: 'edit', message: data}), '*');
  					}), mxUtils.bind(this, function()
  					{
  						this.hideDialog();
  						parent.postMessage(JSON.stringify({event: 'draft', result: 'discard', message: data}), '*');
  					}), (data.editKey) ? mxResources.get(data.editKey) : null,
  						(data.discardKey) ? mxResources.get(data.discardKey) : null,
  						(data.ignore) ? mxUtils.bind(this, function()
  						{
  							this.hideDialog();
  							parent.postMessage(JSON.stringify({event: 'draft', result: 'ignore', message: data}), '*');
  						}) : null);
  					this.showDialog(dlg.container, 640, 480, true, false, mxUtils.bind(this, function(cancel)
  					{
  						if (cancel)
  						{
  							this.actions.get('exit').funct();
  						}
  					}));
  					
  					try
  					{
  						dlg.init();
  					}
  					catch (e)
  					{
  						parent.postMessage(JSON.stringify({event: 'draft', error: e.toString(), message: data}), '*');
  					}
  					
  					return;
  				}
  				else if (data.action == 'template')
  				{
  					this.spinner.stop();
  					
  					var enableRecentDocs = data.enableRecent == 1;
  					var enableSearchDocs = data.enableSearch == 1;
  					
  					var dlg = new NewDialog(this, false, data.callback != null, mxUtils.bind(this, function(xml, name)
  					{
  						xml = xml || this.emptyDiagramXml;
  						
  						// LATER: Add autosave option in template message
  						if (data.callback != null)
  						{
  							parent.postMessage(JSON.stringify({event: 'template', xml: xml,
  								blank: xml == this.emptyDiagramXml, name: name}), '*');
  						}
  						else
  						{
  							fn(xml, evt, xml != this.emptyDiagramXml);
  							
  							// Workaround for status updated before modified applied
  							if (!this.editor.modified)
  							{
  								this.editor.setStatus('');
  							}
  						}
  					}), null, null, null, null, null, null, null, 
  					enableRecentDocs? mxUtils.bind(this, function(recentReadyCallback) 
  					{
  						this.recentReadyCallback = recentReadyCallback;
  						
  						parent.postMessage(JSON.stringify({event: 'recentDocs'}), '*');
  					}) : null, 
  					enableSearchDocs?  mxUtils.bind(this, function(searchStr, searchReadyCallback) 
  					{
  						this.searchReadyCallback = searchReadyCallback;
  						
  						parent.postMessage(JSON.stringify({event: 'searchDocs', searchStr: searchStr}), '*');
  					}) : null, 
  					function(url, info, name) 
  					{
  						parent.postMessage(JSON.stringify({event: 'template', docUrl: url, info: info,
  							name: name}), '*');
  					});
  
  					this.showDialog(dlg.container, 620, 440, true, false, mxUtils.bind(this, function(cancel)
  					{
  						if (cancel)
  						{
  							this.actions.get('exit').funct();
  						}
  					}));
  					dlg.init();
  					
  					return;
  				}
  				else if (data.action == 'searchDocsList')
  				{
  					this.searchReadyCallback(data.list, data.errorMsg);
  				}
  				else if (data.action == 'recentDocsList')
  				{
  					this.recentReadyCallback(data.list, data.errorMsg);
  				}
  				else if (data.action == 'status')
  				{
  					if (data.messageKey != null)
  					{
  						this.editor.setStatus(mxUtils.htmlEntities(mxResources.get(data.messageKey)));
  					}
  					else if (data.message != null)
  					{
  						this.editor.setStatus(mxUtils.htmlEntities(data.message));
  					}
  					
  					if (data.modified != null)
  					{
  						this.editor.modified = data.modified;
  					}
  					
  					return;
  				}
  				else if (data.action == 'spinner')
  				{
  					var msg = (data.messageKey != null) ? mxResources.get(data.messageKey) : data.message;
  					
  					if (data.show != null && !data.show)
  					{
  						this.spinner.stop();
  					}
  					else
  					{
  						this.spinner.spin(document.body, msg)
  					}
  
  					return;
  				}
  				else if (data.action == 'export')
  				{
  					if (data.format == 'png' || data.format == 'xmlpng')
  					{
  						if ((data.spin == null && data.spinKey == null) || this.spinner.spin(document.body,
  							(data.spinKey != null) ? mxResources.get(data.spinKey) : data.spin))
  						{
  							var xml = (data.xml != null) ? data.xml : this.getFileData(true);
  							this.editor.graph.setEnabled(false);
  							var graph = this.editor.graph;
  							
  							var postDataBack = mxUtils.bind(this, function(uri)
  							{
  								this.editor.graph.setEnabled(true);
  								this.spinner.stop();
  								
  								var msg = this.createLoadMessage('export');
  								msg.format = data.format;
  								msg.message = data;
  								msg.data = uri;
  								msg.xml = encodeURIComponent(xml);
  								parent.postMessage(JSON.stringify(msg), '*');
  							});
  							
  							var processUri = mxUtils.bind(this, function(uri)
  							{
  								if (uri == null)
  								{
  									uri = Editor.blankImage;
  								}
  								
  						   	    if (data.format == 'xmlpng')
  						   	    {
  						   	    		uri = this.writeGraphModelToPng(uri, 'zTXt', 'mxGraphModel',
  						   	    				atob(this.editor.graph.compress(xml)));	
  						   	    }
  						   	    	
  								// Removes temporary graph from DOM
  						   	    if (graph != this.editor.graph)
  								{
  									graph.container.parentNode.removeChild(graph.container);
  								}
  				   	   	    	
  						   	    postDataBack(uri);
  							});
  					
  							// LATER: Uses external export if current page (not first page) has mathEnabled
  							if (this.isExportToCanvas())
  							{
  								// Exports PNG for first page while other page is visible by creating a graph
  								// LATER: Add caching for the graph or SVG while not on first page
  								if (this.pages != null && this.currentPage != this.pages[0])
  								{
  									graph = this.createTemporaryGraph(graph.getStylesheet());
  									var graphGetGlobalVariable = graph.getGlobalVariable;
  									var page = this.pages[0];
  							
  									graph.getGlobalVariable = function(name)
  									{
  										if (name == 'page')
  										{
  											return page.getName();
  										}
  										else if (name == 'pagenumber')
  										{
  											return 1;
  										}
  										
  										return graphGetGlobalVariable.apply(this, arguments);
  									};
  							
  									document.body.appendChild(graph.container);
  									graph.model.setRoot(page.root);
  								}
  
  								this.exportToCanvas(mxUtils.bind(this, function(canvas)
  							   	{
  									processUri(canvas.toDataURL('image/png'));
  							   	}), null, null, null, mxUtils.bind(this, function()
  								{
  							   		processUri(null);
  								}), null, null, null, null, null, null, graph);
  							}
  							else
  							{
  								// Data from server is base64 encoded to avoid binary XHR
  								// Double encoding for XML arg is needed for UTF8 encoding
  						       	var req = new mxXmlRequest(EXPORT_URL, 'format=png&embedXml=' +
  						       		((data.format == 'xmlpng') ? '1' : '0') + '&base64=1&xml=' +
  						       		encodeURIComponent(encodeURIComponent(xml)));
  
  								req.send(mxUtils.bind(this, function(req)
  								{
  									// Temp graph was never created at this point so we can
  									// skip processUri since it already contains the XML
  									if (req.getStatus() >= 200 && req.getStatus() <= 299)
  									{
  										postDataBack('data:image/png;base64,' + req.getText());
  									}
  									else
  									{
  										processUri(null);
  									}
  								}), mxUtils.bind(this, function()
  								{
  									processUri(null);
  								}));
  							}
  						}
  					}
  					else
  					{
  						// SVG is generated from graph so parse optional XML
  						if (data.xml != null && data.xml.length > 0)
  						{
  							this.setFileData(data.xml);
  						}
  						
  						var msg = this.createLoadMessage('export');
  						
  						// Forces new HTML format if pages exists
  						if (data.format == 'html2' || (data.format == 'html' && (urlParams['pages'] != '0' ||
  							(this.pages != null && this.pages.length > 1))))
  						{
  							var node = this.getXmlFileData();
  							msg.xml = mxUtils.getXml(node);
  							msg.data = this.getFileData(null, null, true, null, null, null, node);
  							msg.format = data.format;
  						}
  						else if (data.format == 'html')
  						{
  							var xml = this.editor.getGraphXml();
  							msg.data = this.getHtml(xml, this.editor.graph);
  							msg.xml = mxUtils.getXml(xml);
  							msg.format = data.format;
  						}
  						else
  						{
  							// Creates a preview with no alt text for unsupported browsers
  				        	mxSvgCanvas2D.prototype.foAltText = null;
  				        	
  				        	var bg = this.editor.graph.background;
  				        	
  				        	if (bg == mxConstants.NONE)
  				        	{
  				        		bg = null;
  				        	}
  					        	
  							msg.xml = this.getFileData(true);
  							msg.format = 'svg';
  					        	
  				        	if (data.embedImages || data.embedImages == null)
  				        	{
  								if ((data.spin == null && data.spinKey == null) || this.spinner.spin(document.body,
  									(data.spinKey != null) ? mxResources.get(data.spinKey) : data.spin))
  								{
  									this.editor.graph.setEnabled(false);
  									
  					        		if (data.format == 'xmlsvg')
  					        		{
  						        		this.getEmbeddedSvg(msg.xml, this.editor.graph, null, true, mxUtils.bind(this, function(svg)
  					        			{
  										this.editor.graph.setEnabled(true);
  										this.spinner.stop();
  										
  										msg.data = this.createSvgDataUri(svg);
  										parent.postMessage(JSON.stringify(msg), '*');
  					        			}));
  					        		}
  					        		else
  					        		{
  					        			this.convertImages(this.editor.graph.getSvg(bg), mxUtils.bind(this, function(svgRoot)
  					        			{
  										this.editor.graph.setEnabled(true);
  										this.spinner.stop();
  										
  										msg.data = this.createSvgDataUri(mxUtils.getXml(svgRoot));
  										parent.postMessage(JSON.stringify(msg), '*');
  					        			}));
  					        		}
  								}
  					        		
  				        		return;
  				        	}
  				        	else
  				        	{
  				        		var svg = (data.format == 'xmlsvg') ? this.getEmbeddedSvg(this.getFileData(true),
  				        		this.editor.graph, null, true) : mxUtils.getXml(this.editor.graph.getSvg(bg));
  				        		msg.data = this.createSvgDataUri(svg);
  					        }
  						}
  
  						parent.postMessage(JSON.stringify(msg), '*');
  					}
  					
  					return;
  				}
  				else if (data.action == 'load')
  				{
  					autosave = data.autosave == 1;
  					this.hideDialog();
  					
  					if (data.modified != null && urlParams['modified'] == null)
  					{
  						urlParams['modified'] = data.modified;
  					}
  					
  					if (data.saveAndExit != null && urlParams['saveAndExit'] == null)
  					{
  						urlParams['saveAndExit'] = data.saveAndExit;
  					}
  					
  					if (data.title != null && this.buttonContainer != null)
  					{
  						var tmp = document.createElement('span');
  						mxUtils.write(tmp, data.title);
  						
  						if (uiTheme == 'atlas')
  						{
  							this.buttonContainer.style.paddingRight = '12px';
  							this.buttonContainer.style.paddingTop = '12px';
  						}
  						else if (uiTheme != 'min')
  						{
  							this.buttonContainer.style.paddingRight = '38px';
  							this.buttonContainer.style.paddingTop = '6px';
  						}
  
  						if (this.embedFilenameSpan != null)
  						{
  							this.embedFilenameSpan.parentNode.removeChild(this.embedFilenameSpan);
  						}
  
  						this.buttonContainer.appendChild(tmp);
  						this.embedFilenameSpan = tmp;
  					}
  					
  					if (data.xmlpng != null)
  					{
  						data = this.extractGraphModelFromPng(data.xmlpng);
  					}
  					else if (data.xml != null && data.xml.substring(0, 22) == 'data:image/png;base64,')
  					{
  						data = this.extractGraphModelFromPng(data.xml);
  					}
  					else
  					{
  						data = data.xml;
  					}
  				}
  				else
  				{
  					// Unknown message must stop execution
  					parent.postMessage(JSON.stringify({error: 'unknownMessage', data: JSON.stringify(data)}), '*');
  					
  					return;
  				}
  			}
  			
  			data = extractDiagramXml(data);
  			
  			ignoreChange = true;
  			try
  			{
  				fn(data, evt);
  			}
  			catch (e)
  			{
  				this.handleError(e);
  			}
  			ignoreChange = false;
  			
  			if (urlParams['modified'] != null)
  			{
  				this.editor.setStatus('');
  			}
  			
  			var getData = mxUtils.bind(this, function()
  			{
  				return (urlParams['pages'] != '0' || (this.pages != null && this.pages.length > 1)) ?
  					this.getFileData(true): mxUtils.getXml(this.editor.getGraphXml());
  			});;
  			
  			lastData = getData();
  
  			if (autosave && changeListener == null)
  			{
  				changeListener = mxUtils.bind(this, function(sender, eventObject)
  				{
  					var data = getData();
  
  					if (data != lastData && !ignoreChange)
  					{
  						var msg = this.createLoadMessage('autosave');
  						msg.xml = data;
  						data = JSON.stringify(msg);
  						
  						var parent = window.opener || window.parent;
  						parent.postMessage(data, '*');
  					}
  					
  					lastData = data;
  				});
  				
  				this.editor.graph.model.addListener(mxEvent.CHANGE, changeListener);
  
  				// Some options trigger autosave
  				this.editor.graph.addListener('gridSizeChanged', changeListener);
  				this.editor.graph.addListener('shadowVisibleChanged', changeListener);
  				this.addListener('pageFormatChanged', changeListener);
  				this.addListener('pageScaleChanged', changeListener);
  				this.addListener('backgroundColorChanged', changeListener);
  				this.addListener('backgroundImageChanged', changeListener);
  				this.addListener('foldingEnabledChanged', changeListener);
  				this.addListener('mathEnabledChanged', changeListener);
  				this.addListener('gridEnabledChanged', changeListener);
  				this.addListener('guidesEnabledChanged', changeListener);
  				this.addListener('pageViewChanged', changeListener);
  			}
  			
  			// Sends the bounds of the graph to the host after parsing
  			if (urlParams['returnbounds'] == '1' || urlParams['proto'] == 'json')
  			{
  				parent.postMessage(JSON.stringify(this.createLoadMessage('load')), '*');
  			}
  		}));
  		
  		// Requests data from the sender. This is a workaround for not allowing
  		// the opener to listen for the onload event if not in the same origin.
  		var parent = window.opener || window.parent;
  		var msg = (urlParams['proto'] == 'json') ? JSON.stringify({event: 'init'}) : (urlParams['ready'] || 'ready');
  		parent.postMessage(msg, '*');
  	};
  	
  	/**
  	 * Adds the buttons for embedded mode.
  	 */
  	EditorUi.prototype.addEmbedButtons = function()
  	{
  		if (this.menubar != null)
  		{
  			var div = document.createElement('div');
  			div.style.display = 'inline-block';
  			div.style.position = 'absolute';
  			div.style.paddingTop = (uiTheme == 'atlas') ? '2px' : '3px';
  			div.style.paddingLeft = '8px';
  			div.style.paddingBottom = '2px';
  
  			var button = document.createElement('button');
  			mxUtils.write(button, mxResources.get('save'));
  			button.setAttribute('title', mxResources.get('save') + ' (' + Editor.ctrlKey + '+S)');
  			button.className = 'geBigButton';
  			button.style.fontSize = '12px';
  			button.style.padding = '4px 6px 4px 6px';
  			button.style.borderRadius = '3px';
  			
  			mxEvent.addListener(button, 'click', mxUtils.bind(this, function()
  			{
  				this.actions.get('save').funct();
  			}));
  			
  			div.appendChild(button);
  			
  			if (urlParams['saveAndExit'] == '1')
  			{
  				button = document.createElement('a');
  				mxUtils.write(button, mxResources.get('saveAndExit'));
  				button.setAttribute('title', mxResources.get('saveAndExit'));
  				button.style.fontSize = '12px';
  				button.style.marginLeft = '6px';
  				button.style.padding = '4px';
  				button.style.cursor = 'pointer';
  				
  				mxEvent.addListener(button, 'click', mxUtils.bind(this, function()
  				{
  					this.actions.get('saveAndExit').funct();
  				}));
  				
  				div.appendChild(button);
  			}
  
  			button = document.createElement('a');
  			mxUtils.write(button, mxResources.get('exit'));
  			button.setAttribute('title', mxResources.get('exit'));
  			button.style.fontSize = '12px';
  			button.style.marginLeft = '6px';
  			button.style.marginRight = '20px';
  			button.style.padding = '4px';
  			button.style.cursor = 'pointer';
  			
  			mxEvent.addListener(button, 'click', mxUtils.bind(this, function()
  			{
  				this.actions.get('exit').funct();
  			}));
  			
  			div.appendChild(button);
  			
  			this.toolbar.container.appendChild(div);
  			this.toolbar.staticElements.push(div);
  			div.style.right = (uiTheme != 'atlas') ? '52px' : '42px';
  		}
  	};
  
  	/**
  	 * 
  	 */
  	EditorUi.prototype.showImportCsvDialog = function()
  	{
  		if (this.importCsvDialog == null)
  		{
  			this.importCsvDialog = new TextareaDialog(this, mxResources.get('csv') + ':',
      			Editor.defaultCsvValue, mxUtils.bind(this, function(newValue)
  			{
      			this.importCsv(newValue);
  			}), null, null, 620, 430, null, true, true, mxResources.get('import'));
  		}
  		
  		this.showDialog(this.importCsvDialog.container, 640, 520, true, true);
  		this.importCsvDialog.init();
  	};
  
  	/**
  	 * TODO: Move to Editor
  	 */
  	EditorUi.prototype.importCsv = function(text, done)
  	{
  		try
  		{
      		var lines = text.split('\n');
      		var cells = [];
      		
      		if (lines.length > 0)
      		{
          		// Internal lookup table
          		var lookups = {};
          		
          		// Default values
          		var style = null;
          		var parentstyle = null;
          		var identity = null;
          		var parent = null;
          		var namespace = '';
          		var width = 'auto';
          		var height = 'auto';
          		var left = null;
          		var top = null;
          		var edgespacing = 40;
          		var nodespacing = 40;
          		var padding = 0;
          		
          		var graph = this.editor.graph;
  				var view = graph.view;
  				var bds = graph.getGraphBounds();
  
  				// Delayed after optional layout
      			var afterInsert = function()
      			{
      				if (done != null)
      				{
      					done(select);
      				}
      				else
      				{
      					graph.setSelectionCells(select);
      					graph.scrollCellToVisible(graph.getSelectionCell());
      				}
      			};
      				
      			// Computes unscaled, untranslated graph bounds
      			var pt = graph.getFreeInsertPoint();
  				var x0 = pt.x;
  				var y0 = pt.y;
  				var y = y0;
  
      			// Default label value depends on column names
          		var label = null;
          		
      			// Default layout to run.
          		var layout = 'auto';
          		
          		// Name of the attribute that contains the parent reference
          		var parent = null;
          		
          		// Name of the attribute that contains the references for creating edges
          		var edges = [];
  
          		// Name of the column for hyperlinks
          		var link = null;
          		
          		// String array of names to remove from metadata
          		var ignore = null;
          		
          		// Read processing instructions first
          		var index = 0;
          		
          		while (index < lines.length && lines[index].charAt(0) == '#')
          		{
          			var text = lines[index];
          			index++;
          			
          			while (index < lines.length && text.charAt(text.length - 1) == '\\' &&
          				lines[index].charAt(0) == '#')
          			{
          				text = text.substring(0, text.length - 1) + mxUtils.trim(lines[index].substring(1));
          				index++;
          			}
          			
          			if (text.charAt(1) != '#')
          			{
  	    				// Processing instruction
  	    				var idx = text.indexOf(':');
  	    				
  	    				if (idx > 0)
  	    				{
  		    				var key = mxUtils.trim(text.substring(1, idx));
  		    				var value = mxUtils.trim(text.substring(idx + 1));
  	
  		    				if (key == 'label')
  		    				{
  		    					label = graph.sanitizeHtml(value);
  		    				}
  		    				else if (key == 'style')
  		    				{
  		    					style = value;
  		    				}
  		    				else if (key == 'parentstyle')
  		    				{
  		    					parentstyle = value;
  		    				}
  		    				else if (key == 'identity' && value.length > 0 && value != '-')
  		    				{
  		    					identity = value;
  		    				}
  		    				else if (key == 'parent' && value.length > 0 && value != '-')
  		    				{
  		    					parent = value;
  		    				}
  		    				else if (key == 'namespace' && value.length > 0 && value != '-')
  		    				{
  		    					namespace = value;
  		    				}
  		    				else if (key == 'width')
  		    				{
  		    					width = value;
  		    				}
  		    				else if (key == 'height')
  		    				{
  		    					height = value;
  		    				}
  		    				else if (key == 'left' && value.length > 0)
  		    				{
  		    					left = value;
  		    				}
  		    				else if (key == 'top' && value.length > 0)
  		    				{
  		    					top = value;
  		    				}
  		    				else if (key == 'ignore')
  		    				{
  		    					ignore = value.split(',');
  		    				}
  		    				else if (key == 'connect')
  		    				{
  		    					edges.push(JSON.parse(value));
  		    				}
  		    				else if (key == 'link')
  		    				{
  		    					link = value;
  		    				}
  		    				else if (key == 'padding')
  		    				{
  		    					padding = parseFloat(value);
  		    				}
  		    				else if (key == 'edgespacing')
  		    				{
  		    					edgespacing = parseFloat(value);
  		    				}
  		    				else if (key == 'nodespacing')
  		    				{
  		    					nodespacing = parseFloat(value);
  		    				}
  		    				else if (key == 'layout')
  		    				{
  		    					layout = value;
  		    				}
  	    				}
          			}
          		}
          		
      			var keys = this.editor.csvToArray(lines[index]);
      			
      			// Converts name of identity and parent to indexes of column
      			var identityIndex = null;
      			var parentIndex = null;
      			
      			if (identity != null || parent != null)
      			{
      				for (var i = 0; i < keys.length; i++)
  		    		{
      					if (identity == keys[i])
      					{
      						identityIndex = i;
      					}
      					
      					if (parent == keys[i])
      					{
      						parentIndex = i;
      					}
  		    		}
      			}
      			
      			if (label == null)
      			{
      				label = '%' + keys[0] + '%';
      			}
      			
      			if (edges != null)
  				{
  					for (var e = 0; e < edges.length; e++)
  					{
  						if (lookups[edges[e].to] == null)
  						{
  							lookups[edges[e].to] = {};
  						}
  					}
  				}
      			
          		graph.model.beginUpdate();
          		try
          		{
  	    			for (var i = index + 1; i < lines.length; i++)
  		    		{
      	    			var values = this.editor.csvToArray(lines[i]);
      	    			
  	    				if (values.length == keys.length)
  		    			{
  	    					var cell = null;
  	    					var id = (identityIndex != null) ? namespace + values[identityIndex] : null;
  	    					
  	    					if (id != null)
  	    					{
  	    						cell = graph.model.getCell(id);
  	    					}
  
  	    					if (cell == null)
  	    					{
  				    			var cell = new mxCell(label, new mxGeometry(x0, y,
  				    				0, 0), style || 'whiteSpace=wrap;html=1;');
  								cell.vertex = true;
  								cell.id = id;
  	    					}
  	    					
  							for (var j = 0; j < values.length; j++)
  					    	{
  								graph.setAttributeForCell(cell, keys[j], values[j]);
  					    	}
  							
  							graph.setAttributeForCell(cell, 'placeholders', '1');
  							cell.style = graph.replacePlaceholders(cell, cell.style);
  								
  	    					for (var e = 0; e < edges.length; e++)
  	    					{
  	    						lookups[edges[e].to][cell.getAttribute(edges[e].to)] = cell;
  	    					}
  							
  							if (link != null && link != 'link')
  							{
  								graph.setLinkForCell(cell, cell.getAttribute(link));
  								
  								// Removes attribute
  								graph.setAttributeForCell(cell, link, null);
  							}
  	
  							// Sets the size
  							graph.fireEvent(new mxEventObject('cellsInserted', 'cells', [cell]));
  							var size = this.editor.graph.getPreferredSizeForCell(cell);
  							
  							if (cell.vertex)
  							{
  								if (left != null && cell.getAttribute(left) != null)
  								{
  									cell.geometry.x = x0 + parseFloat(cell.getAttribute(left));
  								}
  	
  								if (top != null && cell.getAttribute(top) != null)
  								{
  									cell.geometry.y = y0 + parseFloat(cell.getAttribute(top));
  								}
  								
  								if (width.charAt(0) == '@' && cell.getAttribute(width.substring(1)) != null)
  								{
  									cell.geometry.width = parseFloat(cell.getAttribute(width.substring(1)));
  								}
  								else
  								{
  									cell.geometry.width = (width == 'auto') ? size.width + padding : parseFloat(width);
  								}
  
  								if (height.charAt(0) == '@' && cell.getAttribute(height.substring(1)) != null)
  								{
  									cell.geometry.height = parseFloat(cell.getAttribute(height.substring(1)));
  								}
  								else
  								{
  									cell.geometry.height = (height == 'auto') ? size.height + padding : parseFloat(height);
  								}
  								
  								y += cell.geometry.height + nodespacing;
  							}
  							
  	    					var parent = (parentIndex != null) ? graph.model.getCell(
  	    						namespace + values[parentIndex]) : null;
  	    					
  	    					if (parent != null)
  	    					{
  	    						parent.style = graph.replacePlaceholders(parent, parentstyle);
  	    						graph.addCell(cell, parent);
  	    					}
  	    					else
  	    					{
  	    						cells.push(graph.addCell(cell));
  	    					}
  		    			}
  		    		}
  	    			
  					var roots = cells.slice();
  					var select = cells.slice();
  	
  					for (var e = 0; e < edges.length; e++)
  					{
  						var edge = edges[e];
  	
  						for (var i = 0; i < cells.length; i++)
  	    				{
  							var cell = cells[i];
  	
  	    					var tmp = cell.getAttribute(edge.from);
  	    					
  	    					if (tmp != null)
  	    					{
  	    						// Removes attribute
  		    					graph.setAttributeForCell(cell, edge.from, null);
  	    						var refs = tmp.split(',');
  		    					
  		    					for (var j = 0; j < refs.length; j++)
  		        				{
  		    						var ref = lookups[edge.to][refs[j]];
  		    						
  		    						if (ref != null)
  		    						{
  		    							var label = edge.label;
  		    							
  		    							if (edge.fromlabel != null)
  		    							{
  		    								label = (cell.getAttribute(edge.fromlabel) || '') + (label || '');
  		    							}
  		    							
  		    							if (edge.tolabel != null)
  		    							{
  		    								label = (label || '') + (ref.getAttribute(edge.tolabel) || '');
  		    							}
  		    							
  		    							select.push(graph.insertEdge(null, null, label || '',
  			    							(edge.invert) ? ref : cell, (edge.invert) ? cell : ref,
  							    			edge.style || graph.createCurrentEdgeStyle()));
  		    							mxUtils.remove((edge.invert) ? cell : ref, roots);
  		    						}
  		        				}
  	    					}
  						}
  					}
  						
  					// Removes ignored attributes after processing above
  					if (ignore != null)
  					{
  						for (var i = 0; i < cells.length; i++)
  						{
  							var cell = cells[i];
  							
  							for (var j = 0; j < ignore.length; j++)
  					    	{
  								graph.setAttributeForCell(cell, mxUtils.trim(ignore[j]), null);
  					    	}
  						}
  					}
  					
  					var edgeLayout = new mxParallelEdgeLayout(graph);
  					edgeLayout.spacing = edgespacing;
  			
  					var postProcess = function()
  					{
  						edgeLayout.execute(graph.getDefaultParent());
  						
      	    			// Aligns cells to grid and/or rounds positions
  						for (var i = 0; i < cells.length; i++)
  	    				{
  							var geo = graph.getCellGeometry(cells[i]);
  							geo.x = Math.round(graph.snap(geo.x));
  							geo.y = Math.round(graph.snap(geo.y));
  							
  							if (width == 'auto')
  							{
  								geo.width = Math.round(graph.snap(geo.width));	
  							}
  							
  							if (height == 'auto')
  							{
  								geo.height = Math.round(graph.snap(geo.height));	
  							}
  	    				}
  					};
  					
  					if (layout == 'circle')
  					{
  						var circleLayout = new mxCircleLayout(graph);
  	    				circleLayout.resetEdges = false;
  	    				
  	    				var circleLayoutIsVertexIgnored = circleLayout.isVertexIgnored;
  	    				
      	    				// Ignore other cells
  	    				circleLayout.isVertexIgnored = function(vertex)
  	    				{
  	    					return circleLayoutIsVertexIgnored.apply(this, arguments) ||
  	    						mxUtils.indexOf(cells, vertex) < 0;
  	    				};
  					
  			    		this.executeLayout(function()
  			    		{
  			    			circleLayout.execute(graph.getDefaultParent());
  			    			postProcess();
  			    		}, true, afterInsert);
      				
  			    		afterInsert = null;
  					}
  					else if (layout == 'horizontaltree' || layout == 'verticaltree' ||
  							(layout == 'auto' && select.length == 2 * cells.length - 1 && roots.length == 1))
  	    			{
  		    			// Required for layouts to work with new cells
  		    			graph.view.validate();
  		    			
  	    				var treeLayout = new mxCompactTreeLayout(graph, layout == 'horizontaltree');
  	    				treeLayout.levelDistance = nodespacing;
  	    				treeLayout.edgeRouting = false;
  	    				treeLayout.resetEdges = false;
  	    				
  	    				this.executeLayout(function()
  	    	    		{
  	    					treeLayout.execute(graph.getDefaultParent(), (roots.length > 0) ? roots[0] : null);
  	    	    		}, true, afterInsert);
  	    				
  	    				afterInsert = null;
  	    			}
  	    			else if (layout == 'horizontalflow' || layout == 'verticalflow' ||
  	    					(layout == 'auto' && roots.length == 1))
  	    			{
  		    			// Required for layouts to work with new cells
  		    			graph.view.validate();
  		    			
  		    			var flowLayout = new mxHierarchicalLayout(graph,
  		    				(layout == 'horizontalflow') ? mxConstants.DIRECTION_WEST : mxConstants.DIRECTION_NORTH);
  		    			flowLayout.intraCellSpacing = nodespacing;
  		    			flowLayout.disableEdgeStyle = false;
  		    			
  		        		this.executeLayout(function()
  		        		{
  		        			flowLayout.execute(graph.getDefaultParent(), select);
  		        			
  		        			// Workaround for flow layout moving cells to origin
  		        			graph.moveCells(select, x0, y0);
  		        		}, true, afterInsert);
  			    			
  		    			afterInsert = null;
  		    		}
  	    			else if (layout == 'organic' || (layout == 'auto' &&
  	    					select.length > cells.length))
  	    			{
  		    			// Required for layouts to work with new cells
  		    			graph.view.validate();
  		    			
  	    				var organicLayout = new mxFastOrganicLayout(graph);
  	    				organicLayout.forceConstant = nodespacing * 3;
  	    				organicLayout.resetEdges = false;
  
  	    				var organicLayoutIsVertexIgnored = organicLayout.isVertexIgnored;
  
      	    				// Ignore other cells
  	    				organicLayout.isVertexIgnored = function(vertex)
  	    				{
  	    					return organicLayoutIsVertexIgnored.apply(this, arguments) ||
  	    						mxUtils.indexOf(cells, vertex) < 0;
  	    				};
  
  	    				var edgeLayout = new mxParallelEdgeLayout(graph);
  	    				edgeLayout.spacing = edgespacing;
  	    				
  	    	    		this.executeLayout(function()
  	    	    		{
  	    	    			organicLayout.execute(graph.getDefaultParent());
  			    			postProcess();
  	    	    		}, true, afterInsert);
  	    	    		
  	    	    		afterInsert = null;
  	    			}
  	    			
  	    			this.hideDialog();
          		}
          		finally
          		{
          			graph.model.endUpdate();
          		}
  				
          		if (afterInsert != null)
          		{
          			afterInsert();
          		}
      		}
  		}
  		catch (e)
  		{
  			this.handleError(e);
  		}
  	};
  
  	/**
  	 * Translates this point by the given vector.
  	 * 
  	 * @param {number} dx X-coordinate of the translation.
  	 * @param {number} dy Y-coordinate of the translation.
  	 */
  	EditorUi.prototype.getSearch = function(exclude)
  	{
  		var result = '';
  		
  		if (urlParams['offline'] != '1' && urlParams['demo'] != '1' && exclude != null && window.location.search.length > 0)
  		{
  			var amp = '?';
  			
  			for (var key in urlParams)
  			{
  				if (mxUtils.indexOf(exclude, key) < 0 && urlParams[key] != null)
  				{
  					result += amp + key + '=' + urlParams[key];
  					amp = '&';
  				}
  			}
  		}
  		else
  		{
  			result = window.location.search;
  		}
  		
  		return result;
  	};
  
  	/**
  	 * Returns the URL for a copy of this editor with no state.
  	 */
  	EditorUi.prototype.getUrl = function(pathname)
  	{
  		var href = (pathname != null) ? pathname : window.location.pathname;
  		var parms = (href.indexOf('?') > 0) ? 1 : 0;
  
  		if (urlParams['offline'] == '1')
  		{
  			href += window.location.search;
  		}
  		else
  		{
  			var ignored = ['tmp', 'libs', 'clibs', 'state', 'fileId', 'code', 'share', 'notitle',
  			               'data', 'url', 'embed', 'client', 'create', 'title', 'splash'];
  			
  			// Removes template URL parameter for new blank diagram
  			for (var key in urlParams)
  			{
  				if (mxUtils.indexOf(ignored, key) < 0)
  				{
  					if (parms == 0)
  					{
  						href += '?';
  					}
  					else
  					{
  						href += '&';
  					}
  					
  					if (urlParams[key] != null)
  					{
  						href += key + '=' + urlParams[key];
  						parms++;
  					}
  				}
  			}
  		}
  
  		return href;
  	};
  
  	/**
  	 * Overrides link dialog.
  	 */
  	EditorUi.prototype.showLinkDialog = function(value, btnLabel, fn)
  	{
  		var dlg = new LinkDialog(this, value, btnLabel, fn, true);
  		this.showDialog(dlg.container, 480, 130, true, true);
  		dlg.init();
  	};
  
  	/**
  	 * Overrides createOutline
  	 */
  	var editorUiCreateOutline = EditorUi.prototype.createOutline;
  
  	EditorUi.prototype.createOutline = function(wnd)
  	{
  		var outline = editorUiCreateOutline.apply(this, arguments);
  		var graph = this.editor.graph;
  
  		var outlineGetSourceGraphBounds = outline.getSourceGraphBounds;
  		outline.getSourceGraphBounds = function()
  		{
  			if (mxUtils.hasScrollbars(graph.container) && graph.pageVisible && this.source.minimumGraphSize != null)
  			{
  				var pb = this.source.getPagePadding();
  				var s = this.source.view.scale;
  				
  				var result = new mxRectangle(0, 0, Math.ceil(this.source.minimumGraphSize.width - 2 * pb.x / s),
  						Math.ceil(this.source.minimumGraphSize.height - 2 * pb.y / s));
  				
  				return result;
  			}
  			
  			return outlineGetSourceGraphBounds.apply(this, arguments);
  		};
  		
  		var outlineGetSourceContainerSize = outline.getSourceContainerSize;
  		outline.getSourceContainerSize = function()
  		{
  			if (mxUtils.hasScrollbars(graph.container) && this.source.minimumGraphSize != null)
  			{
  				var pad = this.source.getPagePadding();
  				var s = this.source.view.scale;
  				
  				return new mxRectangle(0, 0, Math.ceil(this.source.minimumGraphSize.width * s - 2 * pad.x),
  						Math.ceil(this.source.minimumGraphSize.height * s - 2 * pad.y));
  			}
  
  			return outlineGetSourceContainerSize.apply(this, arguments);
  		};
  
  		outline.getOutlineOffset = function(scale)
  		{
  			if (mxUtils.hasScrollbars(graph.container) && this.source.minimumGraphSize != null)
  			{
  				var pb = this.source.getPagePadding();
  
  				var dx = Math.max(0, (outline.outline.container.clientWidth / scale - (this.source.minimumGraphSize.width - 2 * pb.x)) / 2);
  				var dy = Math.max(0, (outline.outline.container.clientHeight / scale - (this.source.minimumGraphSize.height - 2 * pb.y)) / 2);
  
  				// Why is vertical offset negative relative to dy
  				return new mxPoint(Math.round(dx - pb.x), Math.round(dy - pb.y - 5 / scale));
  			}
  			
  			return new mxPoint(8 / scale, 8 / scale);
  		};
  		
  		var outlineInit = outline.init;
  		outline.init = function()
  		{
  			outlineInit.apply(this, arguments);
  			
  			// Problem: Need to override a function in the view but the view is created
  			// with the graph so a refresh of the page is needed to see this change.
  			outline.outline.view.getBackgroundPageBounds = function()
  			{
  				var layout = graph.getPageLayout();
  				var page = graph.getPageSize();
  				
  				return new mxRectangle(this.scale * (this.translate.x + layout.x * page.width),
  						this.scale * (this.translate.y + layout.y * page.height),
  						this.scale * layout.width * page.width,
  						this.scale * layout.height * page.height);
  			};
  			
  			outline.outline.view.validateBackgroundPage();
  		};
  		
  		this.editor.addListener('pageSelected', function(sender, evt)
  		{
  			var change = evt.getProperty('change');
  			
  			var graph = outline.source;
  			var g = outline.outline;
  			
  			g.pageScale = graph.pageScale;
  			g.pageFormat = graph.pageFormat;
  			g.background = graph.background;
  			g.pageVisible = graph.pageVisible;
  			g.background = graph.background;
  			
  			var current = mxUtils.getCurrentStyle(graph.container);
  			g.container.style.backgroundColor = current.backgroundColor;
  			
  			if (graph.view.backgroundPageShape != null && g.view.backgroundPageShape != null)
  			{
  				g.view.backgroundPageShape.fill = graph.view.backgroundPageShape.fill;
  			}
  
  			outline.outline.view.clear(change.previousPage.root, true);
  			outline.outline.view.validate();
  		});
  
  		return outline;
  	};
  	
  	/**
  	 * Returns the number of storage options enabled
  	 */
  	EditorUi.prototype.getServiceCount = function(allowBrowser, splash)
  	{
  		var serviceCount = 0;
  		
  		if (this.drive != null || typeof window.DriveClient === 'function')
  		{
  			serviceCount++
  		}
  		
  		if (!splash && (this.dropbox != null || typeof window.DropboxClient === 'function'))
  		{
  			serviceCount++
  		}
  
  		if (this.oneDrive != null || typeof window.OneDriveClient === 'function')
  		{
  			serviceCount++
  		}
  		
  		if (!splash && (this.gitHub != null))
  		{
  			serviceCount++
  		}
  		
  		if (!splash && (this.trello != null || typeof window.TrelloClient === 'function'))
  		{
  			serviceCount++
  		}
  		
  		if (allowBrowser && isLocalStorage && (urlParams['browser'] == '1' || mxClient.IS_IOS))
  		{
  			serviceCount++
  		}
  		
  		if (!mxClient.IS_IOS)
  		{
  			serviceCount++
  		}
  		
  		return serviceCount;
  	}
  
  	/**
  	 * Updates action and menu states depending on the file.
  	 */
  	EditorUi.prototype.updateUi = function()
  	{
  		this.updateButtonContainer();
  		this.updateActionStates();
  		
  		// Action states that only need update for new files
  		var file = this.getCurrentFile();
  		var active = file != null || (urlParams['embed'] == '1' &&
  			this.editor.graph.isEnabled());
  		this.menus.get('viewPanels').setEnabled(active);
  		this.menus.get('viewZoom').setEnabled(active);
  		
  		var restricted = (urlParams['embed'] != '1' ||
  			!this.editor.graph.isEnabled()) &&
  			(file == null || file.isRestricted());
  		this.actions.get('makeCopy').setEnabled(!restricted);
  		this.actions.get('print').setEnabled(!restricted);
  		this.menus.get('exportAs').setEnabled(!restricted);
  		this.menus.get('embed').setEnabled(!restricted);
  		
  		// Disables libraries and extras menu in embed mode
  		// while waiting for file data
  		var libsEnabled = urlParams['embed'] != '1' ||
  				this.editor.graph.isEnabled();
  		this.menus.get('extras').setEnabled(libsEnabled);
  		
  		if (Editor.enableCustomLibraries)
  		{
  			this.menus.get('openLibraryFrom').setEnabled(libsEnabled);
  			this.menus.get('newLibrary').setEnabled(libsEnabled);
  		}
  		
  		// Disables actions in the toolbar
  		var editable = (urlParams['embed'] == '1' &&
  			this.editor.graph.isEnabled()) ||
  			(file != null && file.isEditable());
  		this.actions.get('image').setEnabled(active);
  		this.actions.get('zoomIn').setEnabled(active);
  		this.actions.get('zoomOut').setEnabled(active);
  		this.actions.get('resetView').setEnabled(active);
  	
  		// Disables menus
  		this.menus.get('edit').setEnabled(active);
  		this.menus.get('view').setEnabled(active);
  		this.menus.get('importFrom').setEnabled(editable);
  		this.menus.get('arrange').setEnabled(editable);
  		
  		// Disables connection drop downs in toolbar
  		if (this.toolbar != null)
  		{
  			if (this.toolbar.edgeShapeMenu != null)
  			{
  				this.toolbar.edgeShapeMenu.setEnabled(editable);
  			}
  			
  			if (this.toolbar.edgeStyleMenu != null)
  			{
  				this.toolbar.edgeStyleMenu.setEnabled(editable);
  			}
  		}
  		
  		if (this.isAppCache())
  		{
  			var appCache = applicationCache;
  			
  			// NOTE: HTML5 Cache is deprecated
  			if (appCache != null && this.offlineStatus == null)
  			{
  				this.offlineStatus = document.createElement('div');
  				this.offlineStatus.className = 'geItem';
  				this.offlineStatus.style.position = 'absolute';
  				this.offlineStatus.style.fontSize = '8pt';
  				this.offlineStatus.style.top = '2px';
  				this.offlineStatus.style.right = '12px';
  				this.offlineStatus.style.color = '#666';
  				this.offlineStatus.style.margin = '4px';
  				this.offlineStatus.style.padding = '2px';
  				this.offlineStatus.style.verticalAlign = 'middle';
  				this.offlineStatus.innerHTML = '';
  				
  				this.menubarContainer.appendChild(this.offlineStatus);
  				
  				mxEvent.addListener(this.offlineStatus, 'click', mxUtils.bind(this, function()
  				{
  					var img = this.offlineStatus.getElementsByTagName('img');
  					
  					if (img != null && img.length > 0)
  					{
  						this.alert(img[0].getAttribute('title'));
  					}
  				}));
  				
  				var appCache = window.applicationCache;
  				var lastStatus = null;
  				
  				var updateStatus = mxUtils.bind(this, function()
  				{
  					var newStatus = appCache.status;
  					var html = '';
  					
  					if (newStatus == appCache.CHECKING)
  					{
  						newStatus = appCache.DOWNLOADING;
  					}
  					
  					switch (newStatus)
  					{
  						case appCache.UNCACHED: // UNCACHED == 0
  							html = '';
  							break;
  						case appCache.IDLE: // IDLE == 1
  							html = (uiTheme == 'min') ? '' : '<img title="draw.io is up to date." border="0" src="' + IMAGE_PATH + '/checkmark.gif"/>';
  							break;
  						case appCache.DOWNLOADING: // DOWNLOADING == 3
  							html = '<img title="Downloading new version..." border="0" src="' + IMAGE_PATH + '/spin.gif"/>';
  							break;
  						case appCache.UPDATEREADY:  // UPDATEREADY == 4
  							html = '<img title="' + mxUtils.htmlEntities(mxResources.get('restartForChangeRequired')) +
  					    		'" border="0" src="' + IMAGE_PATH + '/download.png"/>';
  							break;
  						case appCache.OBSOLETE: // OBSOLETE == 5
  							html = '<img title="Obsolete" border="0" src="' + IMAGE_PATH + '/clear.gif"/>';
  							break;
  						default:
  							html = '<img title="Unknown" border="0" src="' + IMAGE_PATH + '/clear.gif"/>';
  							break;
  					}
  					
  					if (newStatus != lastStatus)
  					{
  						this.offlineStatus.innerHTML = html;
  						lastStatus = newStatus;
  					}
  				});
  
  				mxEvent.addListener(appCache, 'checking', updateStatus);
  				mxEvent.addListener(appCache, 'noupdate', updateStatus);
  				mxEvent.addListener(appCache, 'downloading', updateStatus);
  				mxEvent.addListener(appCache, 'progress', updateStatus);
  				mxEvent.addListener(appCache, 'cached', updateStatus);
  				mxEvent.addListener(appCache, 'updateready', updateStatus);
  				mxEvent.addListener(appCache, 'obsolete', updateStatus);
  				mxEvent.addListener(appCache, 'error', updateStatus);
  				
  				updateStatus();
  			}
  		}
  		else
  		{
  			this.updateUserElement();
  		}
  	};
  	
  	/**
  	 * Hook for subclassers
  	 */
  	EditorUi.prototype.updateButtonContainer = function()
  	{
  		// do nothing
  	};
  		
  	/**
  	 * Hook for subclassers
  	 */
  	EditorUi.prototype.updateUserElement = function()
  	{
  		// do nothing
  	};
  	
  	/**
  	 * Returns true if a diagram is cative and editable.
  	 */
  	EditorUi.prototype.isDiagramActive = function()
  	{
  		var file = this.getCurrentFile();
  		
  		return (file != null && file.isEditable()) || 
  			(urlParams['embed'] == '1' && this.editor.graph.isEnabled());
  	};
  	
  	/**
  	 * Updates action states depending on the selection.
  	 */
  	var editorUiUpdateActionStates = EditorUi.prototype.updateActionStates;
  	EditorUi.prototype.updateActionStates = function()
  	{
  		editorUiUpdateActionStates.apply(this, arguments);
  
  		var graph = this.editor.graph;
  		var active = this.isDiagramActive();
  		var file = this.getCurrentFile();
  		var enabled = file != null || urlParams['embed'] == '1';
  		this.actions.get('pageSetup').setEnabled(active);
  		this.actions.get('autosave').setEnabled(file != null && file.isEditable() && file.isAutosaveOptional());
  		this.actions.get('guides').setEnabled(active);
  		this.actions.get('editData').setEnabled(active);
  		this.actions.get('shadowVisible').setEnabled(active);
  		this.actions.get('connectionArrows').setEnabled(active);
  		this.actions.get('connectionPoints').setEnabled(active);
  		this.actions.get('copyStyle').setEnabled(active && !graph.isSelectionEmpty());
  		this.actions.get('pasteStyle').setEnabled(active && !graph.isSelectionEmpty());
  		this.actions.get('editGeometry').setEnabled(graph.getModel().isVertex(graph.getSelectionCell()));
  		this.actions.get('createShape').setEnabled(active);
  		this.actions.get('createRevision').setEnabled(active);
  		this.actions.get('moveToFolder').setEnabled(file != null);
  		this.actions.get('makeCopy').setEnabled(file != null && !file.isRestricted());
  		this.actions.get('editDiagram').setEnabled(active && (file == null || !file.isRestricted()));
  		this.actions.get('publishLink').setEnabled(file != null && !file.isRestricted());
  		this.actions.get('tags').setEnabled(this.diagramContainer.style.visibility != 'hidden');
  		this.actions.get('find').setEnabled(this.diagramContainer.style.visibility != 'hidden');
  		this.actions.get('layers').setEnabled(this.diagramContainer.style.visibility != 'hidden');
  		this.actions.get('outline').setEnabled(this.diagramContainer.style.visibility != 'hidden');
  		this.actions.get('rename').setEnabled((file != null && file.isRenamable()) || urlParams['embed'] == '1');
  		this.actions.get('close').setEnabled(file != null);
  		this.menus.get('publish').setEnabled(file != null && !file.isRestricted());
  		
  		var state = graph.view.getState(graph.getSelectionCell());
  		this.actions.get('editShape').setEnabled(active && state != null && state.shape != null && state.shape.stencil != null);
  	};
  
  	/**
  	 * Overridden to remove export dialog in chromeless lightbox.
  	 */
  	var editoUiDestroy = EditorUi.prototype.destroy;
  
  	EditorUi.prototype.destroy = function()
  	{
  		if (this.exportDialog != null)
  		{
  			this.exportDialog.parentNode.removeChild(this.exportDialog);
  			this.exportDialog = null;
  		}
  		
  		editoUiDestroy.apply(this, arguments);
  	};
  				
  	/**
  	 * Overrides export dialog for using ui functions for save and setting global switches.
  	 */
  	if (window.ExportDialog != null)
  	{
  		ExportDialog.showXmlOption = false;
  		ExportDialog.showGifOption = false;
  		
  		ExportDialog.exportFile = function(editorUi, name, format, bg, s, b)
  		{
  			var graph = editorUi.editor.graph;
  			
  			if (format == 'xml')
  			{
  				editorUi.hideDialog();
  				editorUi.saveData(name, 'xml', mxUtils.getXml(editorUi.editor.getGraphXml()), 'text/xml');
  			}
  		    else if (format == 'svg')
  			{
  		    		editorUi.hideDialog();
  				editorUi.saveData(name, 'svg', mxUtils.getXml(graph.getSvg(bg, s, b)), 'image/svg+xml');
  			}
  		    else
  		    {
  		    		var data = editorUi.getFileData(true, null, null, null, null, true);
  		    		var bounds = graph.getGraphBounds();
  				var w = Math.floor(bounds.width * s / graph.view.scale);
  				var h = Math.floor(bounds.height * s / graph.view.scale);
  				
  				if (data.length <= MAX_REQUEST_SIZE && w * h < MAX_AREA)
  				{
  					editorUi.hideDialog();
  					editorUi.saveRequest(name, format,
  						function(newTitle, base64)
  						{
  							return new mxXmlRequest(EXPORT_URL, 'format=' + format + '&base64=' + (base64 || '0') +
  								((newTitle != null) ? '&filename=' + encodeURIComponent(newTitle) : '') +
  								'&bg=' + ((bg != null) ? bg : 'none') + '&w=' + w + '&h=' + h +
  								'&border=' + b + '&xml=' + encodeURIComponent(data));
  						});
  				}
  				else
  				{
  					mxUtils.alert(mxResources.get('drawingTooLarge'));
  				}
  			}
  		};
  	}
  
  })();
  