1 files changed, 410 insertions, 0 deletions
diff --git a/src/js/util/mxLog.js b/src/js/util/mxLog.js
new file mode 100644
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--- /dev/null
+++ b/src/js/util/mxLog.js
@@ -0,0 +1,410 @@
+/**
+ * $Id: mxLog.js,v 1.32 2012-11-12 09:40:59 gaudenz Exp $
+ * Copyright (c) 2006-2010, JGraph Ltd
+ */
+var mxLog =
+{
+	/**
+	 * Class: mxLog
+	 * 
+	 * A singleton class that implements a simple console.
+	 * 
+	 * Variable: consoleName
+	 * 
+	 * Specifies the name of the console window. Default is 'Console'.
+	 */
+	consoleName: 'Console',
+	
+	/**
+	 * Variable: TRACE
+	 * 
+	 * Specified if the output for <enter> and <leave> should be visible in the
+	 * console. Default is false.
+	 */
+	TRACE: false,
+
+	/**
+	 * Variable: DEBUG
+	 * 
+	 * Specifies if the output for <debug> should be visible in the console.
+	 * Default is true.
+	 */
+	DEBUG: true,
+
+	/**
+	 * Variable: WARN
+	 * 
+	 * Specifies if the output for <warn> should be visible in the console.
+	 * Default is true.
+	 */
+	WARN: true,
+
+	/**
+	 * Variable: buffer
+	 * 
+	 * Buffer for pre-initialized content.
+	 */
+	buffer: '',
+	
+	/**
+	 * Function: init
+	 *
+	 * Initializes the DOM node for the console. This requires document.body to
+	 * point to a non-null value. This is called from within <setVisible> if the
+	 * log has not yet been initialized.
+	 */
+	init: function()
+	{
+		if (mxLog.window == null && document.body != null)
+		{
+			var title = mxLog.consoleName + ' - mxGraph ' + mxClient.VERSION;
+
+			// Creates a table that maintains the layout
+			var table = document.createElement('table');
+			table.setAttribute('width', '100%');
+			table.setAttribute('height', '100%');
+
+			var tbody = document.createElement('tbody');
+			var tr = document.createElement('tr');
+			var td = document.createElement('td');
+			td.style.verticalAlign = 'top';
+				
+			// Adds the actual console as a textarea
+			mxLog.textarea = document.createElement('textarea');
+			mxLog.textarea.setAttribute('readOnly', 'true');
+			mxLog.textarea.style.height = '100%';
+			mxLog.textarea.style.resize = 'none';
+			mxLog.textarea.value = mxLog.buffer;
+
+			// Workaround for wrong width in standards mode
+			if (mxClient.IS_NS && document.compatMode != 'BackCompat')
+			{
+				mxLog.textarea.style.width = '99%';
+			}
+			else
+			{
+				mxLog.textarea.style.width = '100%';
+			}
+			
+			td.appendChild(mxLog.textarea);
+			tr.appendChild(td);
+			tbody.appendChild(tr);
+
+			// Creates the container div
+			tr = document.createElement('tr');
+			mxLog.td = document.createElement('td');
+			mxLog.td.style.verticalAlign = 'top';
+			mxLog.td.setAttribute('height', '30px');
+			
+			tr.appendChild(mxLog.td);
+			tbody.appendChild(tr);
+			table.appendChild(tbody);
+
+			// Adds various debugging buttons
+			mxLog.addButton('Info', function (evt)
+			{
+				mxLog.info();
+			});
+		
+			mxLog.addButton('DOM', function (evt)
+			{
+				var content = mxUtils.getInnerHtml(document.body);
+				mxLog.debug(content);
+			});
+	
+			mxLog.addButton('Trace', function (evt)
+			{
+				mxLog.TRACE = !mxLog.TRACE;
+				
+				if (mxLog.TRACE)
+				{
+					mxLog.debug('Tracing enabled');
+				}
+				else
+				{
+					mxLog.debug('Tracing disabled');
+				}
+			});	
+
+			mxLog.addButton('Copy', function (evt)
+			{
+				try
+				{
+					mxUtils.copy(mxLog.textarea.value);
+				}
+				catch (err)
+				{
+					mxUtils.alert(err);
+				}
+			});			
+
+			mxLog.addButton('Show', function (evt)
+			{
+				try
+				{
+					mxUtils.popup(mxLog.textarea.value);
+				}
+				catch (err)
+				{
+					mxUtils.alert(err);
+				}
+			});	
+			
+			mxLog.addButton('Clear', function (evt)
+			{
+				mxLog.textarea.value = '';
+			});
+
+			// Cross-browser code to get window size
+			var h = 0;
+			var w = 0;
+			
+			if (typeof(window.innerWidth) === 'number')
+			{
+				h = window.innerHeight;
+				w = window.innerWidth;
+			}
+			else
+			{
+				h = (document.documentElement.clientHeight || document.body.clientHeight);
+				w = document.body.clientWidth;
+			}
+
+			mxLog.window = new mxWindow(title, table, Math.max(0, w-320), Math.max(0, h-210), 300, 160);
+			mxLog.window.setMaximizable(true);
+			mxLog.window.setScrollable(false);
+			mxLog.window.setResizable(true);
+			mxLog.window.setClosable(true);
+			mxLog.window.destroyOnClose = false;
+			
+			// Workaround for ignored textarea height in various setups
+			if ((mxClient.IS_NS || mxClient.IS_IE) && !mxClient.IS_GC &&
+				!mxClient.IS_SF && document.compatMode != 'BackCompat')
+			{
+				var elt = mxLog.window.getElement();
+				
+				var resizeHandler = function(sender, evt)
+				{
+					mxLog.textarea.style.height = Math.max(0, elt.offsetHeight - 70)+'px';
+				}; 
+				
+				mxLog.window.addListener(mxEvent.RESIZE_END, resizeHandler);
+				mxLog.window.addListener(mxEvent.MAXIMIZE, resizeHandler);
+				mxLog.window.addListener(mxEvent.NORMALIZE, resizeHandler);
+
+				mxLog.textarea.style.height = '92px';
+			}
+		}
+	},
+	
+	/**
+	 * Function: info
+	 * 
+	 * Writes the current navigator information to the console.
+	 */
+	info: function()
+	{
+		mxLog.writeln(mxUtils.toString(navigator));
+	},
+			
+	/**
+	 * Function: addButton
+	 * 
+	 * Adds a button to the console using the given label and function.
+	 */
+	addButton: function(lab, funct)
+	{
+		var button = document.createElement('button');
+		mxUtils.write(button, lab);
+		mxEvent.addListener(button, 'click', funct);
+		mxLog.td.appendChild(button);
+	},
+				
+	/**
+	 * Function: isVisible
+	 * 
+	 * Returns true if the console is visible.
+	 */
+	isVisible: function()
+	{
+		if (mxLog.window != null)
+		{
+			return mxLog.window.isVisible();
+		}
+		return false;
+	},
+	
+
+	/**
+	 * Function: show
+	 * 
+	 * Shows the console.
+	 */
+	show: function()
+	{
+		mxLog.setVisible(true);
+	},
+
+	/**
+	 * Function: setVisible
+	 * 
+	 * Shows or hides the console.
+	 */
+	setVisible: function(visible)
+	{
+		if (mxLog.window == null)
+		{
+			mxLog.init();
+		}
+
+		if (mxLog.window != null)
+		{
+			mxLog.window.setVisible(visible);
+		}
+	},
+
+	/**
+	 * Function: enter
+	 * 
+	 * Writes the specified string to the console
+	 * if <TRACE> is true and returns the current 
+	 * time in milliseconds.
+	 *
+	 * Example:
+	 * 
+	 * (code)
+	 * mxLog.show();
+	 * var t0 = mxLog.enter('Hello');
+	 * // Do something
+	 * mxLog.leave('World!', t0);
+	 * (end)
+	 */
+	enter: function(string)
+	{
+		if (mxLog.TRACE)
+		{
+			mxLog.writeln('Entering '+string);
+			
+			return new Date().getTime();
+		}
+	},
+
+	/**
+	 * Function: leave
+	 * 
+	 * Writes the specified string to the console
+	 * if <TRACE> is true and computes the difference
+	 * between the current time and t0 in milliseconds.
+	 * See <enter> for an example.
+	 */
+	leave: function(string, t0)
+	{
+		if (mxLog.TRACE)
+		{
+			var dt = (t0 != 0) ? ' ('+(new Date().getTime() - t0)+' ms)' : '';
+			mxLog.writeln('Leaving '+string+dt);
+		}
+	},
+	
+	/**
+	 * Function: debug
+	 * 
+	 * Adds all arguments to the console if <DEBUG> is enabled.
+	 *
+	 * Example:
+	 * 
+	 * (code)
+	 * mxLog.show();
+	 * mxLog.debug('Hello, World!');
+	 * (end)
+	 */
+	debug: function()
+	{
+		if (mxLog.DEBUG)
+		{
+			mxLog.writeln.apply(this, arguments);
+		}
+	},
+	
+	/**
+	 * Function: warn
+	 * 
+	 * Adds all arguments to the console if <WARN> is enabled.
+	 *
+	 * Example:
+	 * 
+	 * (code)
+	 * mxLog.show();
+	 * mxLog.warn('Hello, World!');
+	 * (end)
+	 */
+	warn: function()
+	{
+		if (mxLog.WARN)
+		{
+			mxLog.writeln.apply(this, arguments);
+		}
+	},
+
+	/**
+	 * Function: write
+	 * 
+	 * Adds the specified strings to the console.
+	 */
+	write: function()
+	{
+		var string = '';
+		
+		for (var i = 0; i < arguments.length; i++)
+		{
+			string += arguments[i];
+			
+			if (i < arguments.length - 1)
+			{
+				string += ' ';
+			}
+		}
+		
+		if (mxLog.textarea != null)
+		{
+			mxLog.textarea.value = mxLog.textarea.value + string;
+
+			// Workaround for no update in Presto 2.5.22 (Opera 10.5)
+			if (navigator.userAgent.indexOf('Presto/2.5') >= 0)
+			{
+				mxLog.textarea.style.visibility = 'hidden';
+				mxLog.textarea.style.visibility = 'visible';
+			}
+			
+			mxLog.textarea.scrollTop = mxLog.textarea.scrollHeight;
+		}
+		else
+		{
+			mxLog.buffer += string;
+		}
+	},
+	
+	/**
+	 * Function: writeln
+	 * 
+	 * Adds the specified strings to the console, appending a linefeed at the
+	 * end of each string.
+	 */
+	writeln: function()
+	{
+		var string = '';
+		
+		for (var i = 0; i < arguments.length; i++)
+		{
+			string += arguments[i];
+			
+			if (i < arguments.length - 1)
+			{
+				string += ' ';
+			}
+		}
+
+		mxLog.write(string + '\n');
+	}
+	
+};