//debug helper class to control popup windows
function DebugHelper()
{
this.Active = true;
this.OpenWindowOnFirstMessage = true;
this.ShowException = true;
this.ShowURL = true;
this.ShowLastModified = false;
this.ShowReferrer = false;
this.VerboseMode = false;
//reference to the popup window
this.DebugWindow = null;
this.CssStyleFile = new String("resources/scripts/devtools/debugHelper.css");
this.WindowStyle = new String("left=0,top=0,width=300,height=300,scrollbars=yes,status=no,resizable=yes");
//no spaces to run correctly on internet explorer
this.WindowName = new String("JavascriptDebugWindow");
this.WindowTitle = new String("Javascript Debug Window");
}
//method to show the debug window
//callback won't work for IE
DebugHelper.prototype.ShowWindow = function(callback, args)
{
try
{
if( this.Active && (!this.DebugWindow || this.DebugWindow.closed) )
{
this.DebugWindow = window.open("", this.WindowName, this.WindowStyle);
this.DebugWindow.opener = window;
//open the document for writing
this.DebugWindow.document.open();
this.DebugWindow.document.write(
"" + this.WindowTitle + "" +
"" +
"\n"
);
//prepare window to call callback function when it is loaded
//callback won't work on IE because onload won't be called
if( callback )
{
this.DebugWindow.context = this;
this.DebugWindow.onload = function()
{
callback.apply(this.context, args);
}
}
this.DebugWindow.document.close();
}
}
catch(ex)
{
//ignore exception
}
}
//if the debug window exists, then write to it
DebugHelper.prototype.$Write = function(cssClass, message, url, lastModified, referrer)
{
try
{
if( this.Active )
{
if( this.OpenWindowOnFirstMessage && (!this.DebugWindow || this.DebugWindow.closed) )
{
//there is a issue related to IE's onload method of opened popups
//IE won't call onload to execute the popup write method asynchronously
//however, IE can write it directly, appearing that IE window.open releases script
//flow only when popup's onload method has executed
if( document.all )
{
this.ShowWindow();
}
else
{
this.ShowWindow(this.$WriteAsync, [cssClass, message, url, lastModified, referrer]);
return;
}
}
if( this.DebugWindow && !this.DebugWindow.closed )
{
var msg = message;
if( this.ShowURL && url != null )
msg += " at " + url;
if( this.ShowLastModified && lastModified != null )
msg += " last modified in " + lastModified;
if( this.ShowReferrer && referrer != null )
msg += " referrer " + referrer;
this.DebugWindow.document.getElementById("renderSurface").innerHTML = "" + msg + "" + this.DebugWindow.document.getElementById("renderSurface").innerHTML;
}
}
}
catch(ex)
{
//ignore exception
}
}
//window.onload will call this method when using the Just In Time window opening
//this way write don't get called before window document are ready to be used
DebugHelper.prototype.$WriteAsync = function(cssClass, message, url, lastModified, referrer)
{
this.$Write(cssClass, message, url, lastModified, referrer);
}
//write a message to debug window
DebugHelper.prototype.Message = function(message, url, lastModified, referrer)
{
try
{
this.$Write("debugMessage", message, url, lastModified, referrer);
}
catch(ex)
{
//ignore exception
}
}
//method shortcut
function $dm(message, url, lastModified, referrer)
{
if( debugHelper )
debugHelper.Message(message, url, lastModified, referrer);
}
//same as debug, plus another style applyied
DebugHelper.prototype.Warn = function(message, url, lastModified, referrer)
{
try
{
this.$Write("debugWarn", message, url, lastModified, referrer);
}
catch(ex)
{
//ignore exception
}
}
//same as debug, plus a strong style applyied
DebugHelper.prototype.Exception = function(message, url, lastModified, referrer)
{
try
{
if( this.ShowException )
{
this.$Write("debugException", message, url, lastModified, referrer);
}
}
catch(ex)
{
//ignore exception
}
}
//if the debug window exists, then close it
DebugHelper.prototype.HideWindow = function()
{
try
{
if( this.DebugWindow && !this.DebugWindow.closed )
{
this.DebugWindow.close();
this.DebugWindow = null;
}
}
catch(ex)
{
//ignore exception
}
}
var GameDebugHelper = function()
{
this.KeyboardDebug = false;
this.AIDebug = false;
this.TilemapDebug = false;
this.ImageDebug = false;
this.StateChangeDebug = false;
}
GameDebugHelper.prototype = new DebugHelper();
GameDebugHelper.prototype.constructor = GameDebugHelper;
//create a global debug helper object
var debugHelper = new GameDebugHelper();
//you should show the window right here to get loading time errors or sintax errors
//debugHelper.ShowWindow();
//catch window errors also
function WindowOnError(msg, url, line)
{
debugHelper.Exception(msg, line + " at " + url);
}
window.onerror = WindowOnError;