[thelist] Flash MX Objects and XML class

[Christopher Joseph]

In case anyone was interested the problem was caused because ' 
this.oXMLDoc.onLoad = this.handleLoad;' results in the 'this' of 
handleLoad becoming the oXMLDoc object. If this wasn't inside a class 
definition I could have referenced process() via 'this._parent.process;' 
  through an anonymous function as follows. Beats me how it all works 
though...

aquireLoadSequence = function () {
     this.oXMLDoc = new XML();
     this.oXMLDoc.onLoad = function () { this._parent.process; };
     this.oXMLDoc.load(this.sLoadSequence);
};


Christopher Joseph wrote:
> Hi list,
> 
> Can anyone see why process() doesn't get called from handleLoad() and
> trace(this.sLoadSequence); in handleLoad() is undefined?
> 
> //The complete trace output follows and I can see in debug that the
> function process() is ignored even when the line that calls it is 
> processed:
> ---------------------------------
> com.qlod.LoaderClass.as loaded
> com.qlod.LoaderClass: Defining global com object
> com.qlod.LoaderClass: Defining global com.qlod object
> com.ideadesigners.LoadSequence.as loaded
> com.ideadesigners.LoadSequence: Defining global com.ideadesigners object
> com.qlod.LoaderClass: using ASBroadcaster
> xml/sequence.xml
> undefined
>  after process.
> ----------------------------------
> 
> //My flash movie has this in the first frame:
> -----------------------------------
> stop();
> #include "com.qlod.LoaderClass.as"
> #include "com.ideadesigners.LoadSequence.as"
> var sXMLSequenceFile = "xml/sequence.xml";
> // show 10 mins steps at least
> myLoader = new com.qlod.LoaderClass();
> myLoader.setMinSteps(10);
> mySequencer = new com.ideadesigners.LoadSequence(sXMLSequenceFile,
> MyLoader);
> mySequencer.aquireLoadSequence();
> -----------------------------------
> //My partially coded "com.ideadesigners.LoadSequence.as" is:
> -----------------------------------
> trace("com.ideadesigners.LoadSequence.as loaded");
> /**
>  *  @class LoadSequence
>  *
>  *  Version 1.0
>  *    Date 2004/02/18
>  *  Author Chris Joseph (christopher at ideadesigners.com)
>  *
>  */
> if( typeof(_global.com) != 'object'){
>     trace("com.ideadesigners.LoadSequence: Defining global com object");
>     _global.com = new Object();
> }
> if( typeof(com.ideadesigners) != 'object'){
>     trace("com.ideadesigners.LoadSequence: Defining global
> com.ideadesigners object");
>     com.ideadesigners = new Object();
> }
> o = com.ideadesigners.LoadSequence = function( psXMLSequence, poLoader,
> psAlternateStart ){
>     if( arguments[0] == 'NO_INIT') return;
>     this.aLoadSequence = [];
>     this.sStart = "";
>     this.setSequenceSource( psXMLSequence );
>     this.setLoaderObject( poLoader );
>     this.setStartPoint( psAlternateStart );
> };
> //
> // Statics
> o.DEFAULT_TIMEOUT_MS = 10 * 1000;
> o.DEFAULT_INTERVAL_MS = 100;
> o.DEFAULT_MIN_STEPS = 1;
> 
> // Prototypes
> o = o.prototype;
> o.setLoaderObject = function( poLoader ) {
>     this.oLoader = poLoader;
>     this.oLoader.addListener( this );
> };
> o.setSequenceSource = function ( psXMLSequence ) {
>     this.sLoadSequence = psXMLSequence;
> };
> o.setStartPoint= function ( psAlternateStart ) {
>     this.sStart = psAlternateStart;
> };
> o.onTimeout = function( poLoader ){
>     trace("Timeout-Error: The file " + poLoader.getUrl() + " could not be
> loaded.");
> };
> o.onLoadStart = function( poLoader){
>     trace("Loading of " + poLoader.getTarget() + " has started");
> };
> o.onLoadProgress = function( poLoader ){
>     trace("Percentage: " + poLoader.getPercent());
> };
> o.onLoadComplete = function( bSuccess, poLoader){
>     trace("Loading of " + poLoader.getTarget() + " is completed");
> };
> o.aquireLoadSequence = function () {
>     this.oXMLDoc = new XML();
>     this.oXMLDoc.onLoad = this.handleLoad;
>     trace(this.sLoadSequence);
>     this.oXMLDoc.load(this.sLoadSequence);
> };
> o.handleLoad = function (bSuccess){
>     if(bSuccess){
>         trace(this.sLoadSequence);
>         this.process();
>         trace(this.sLoadSequence + " after process.");
>     } else {
>         trace(this.sLoadSequence + " did not load.");
>     }
> };
> o.process = function () {
>     this.oXMLDoc.ignoreWhite = true;
>     trace(this.oXMLDoc.ignoreWhite);
>     trace("latest");
> };
> 
> delete o;
> -----------------------------------   
> thanks.

-- 
Christopher Joseph

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