[Laszlo-dev] Fwd: some tantalizing comments about loadingassetsfrom external swfs

[Cortlandt Winters]

I'll try what he say's he did as well, but I don't believe that it will
work.

> -----Original Message-----
> From: laszlo-dev-bounces at openlaszlo.org
> [mailto:laszlo-dev-bounces at openlaszlo.org]On Behalf Of Cortlandt Winters
> Sent: Monday, January 10, 2005 9:16 AM
> To: hqm at alum.mit.edu; OpenLaszlo platform development and bug reporting
> Subject: RE: [Laszlo-dev] Fwd: some tantalizing comments about
> loadingassetsfrom external swfs
>
>
> Hi Henry,
>
> I think that, as you suspect, the post is a little misleading
> here for your
> purposes. He's not attaching the dynamically loaded library symbol to the
> scope of the original loading timeline. He's just calling a
> function on the
> scope of the loaded movieclip which can attach it's own library
> symbols and
> be displayed as a result. This will work though.
>
> So if you have Main.swf loading Assets1.swf Main can attach it's symbol's
> dynamically and Assets1 can attach it's symbols dynamically, but
> Main can't
> attach Assest1's symbols to it's scope, the best it can do is call a
> function in Assets, have it attach a symbol to it's local scope and then
> manipulate the Assets1.swf.
>
> This obviously could create problems if you have 2 symbols from the
> Assets1.swf that you are trying to manipulate simultaneously and
> independently. You could duplicate the library swf, but that would be a
> waste of memory for anything large, so I'm afraid lz would
> probably want to
> load them each as independent swfs unless the assets are really small.
>
> If you would like a simple example to look at I can create one either at
> lunch or this evening if nobody does so before then.
>
> -Cort
>
> > -----Original Message-----
> > From: laszlo-dev-bounces at openlaszlo.org
> > [mailto:laszlo-dev-bounces at openlaszlo.org]On Behalf Of Henry Minsky
> > Sent: Sunday, January 09, 2005 10:22 PM
> > To: OpenLaszlo platform development and bug reporting
> > Subject: [Laszlo-dev] Fwd: some tantalizing comments about loading
> > assetsfrom external swfs
> >
> >
> > This is a question addressed to anyone with Flash development expertise.
> >
> > We're looking at the issue of loading libraries or "modules" at
> > runtime, using the  "loadMovie()" command,  and have been
> > having been trying to figure out the right way to be allow the main
> > app to access assets such as images which are defined inside of the
> > runtime-loaded library (swf file).
> >
> > In LZX resources are declared as
> >
> >   <resource src="clock.jpg" name="gclock" />
> >
> > and the compiler will add this as a definition in the library swf
> > file, creating an ExportAssets tag for it. The question is, how can we
> > access these  library file definitions from the main app? The library
> > swf file itself has been loaded via a loadMovie() call and attached to
> > a special placeholder movieclip belonging to a LzLoader object.
> >
> >  In the guts of LzView, the code to attach a resource by name
> > ultimately calls attachMovie() with the name of the resource.
> >
> > I saw the following user comments on the Macromedia docs site, where
> > someone claims to be able to access the assets from a runtime-loaded
> > movieclip. Their suggestion, as I understand it,  is to define a
> > function which calls attachMovie but is defined as a methd on the
> > library movieclip, and thus somehow has access to its flash dictionary
> > namespace.
> >
> > I tried to do these steps by hand, but was still unable to attach
> > image resources from the library file after it had been loaded. Does
> > anyone know if the code mechanism described  below really ought to
> > work ?
> >
> >
> >
> > ========================================
> >
> >
> >
> >
> > http://livedocs.macromedia.com/flash/mx2004/main_7_2/wwhelp/wwhimp
> > l/common/html/wwhelp.htm?context=Flash_MX_2004&file=00001491.html
> >
> >
> >
> >      Yes, the linked clip MUST be in the library of the clip calling
> > attachMovie.
> >
> >     The work arounds I've done usually include something like
> > attaching a function to the clip that has the library item and having
> > it attach to the other clip. IE:
> >
> >     // clip that wants the to do the attaching defines a generic
> > function on the clip that has the item in it's library:
> >
> >     _level0.clipWIthLibraryItem.attachItem = function(target_mc, sName)
> >     {
> >     var mc:MovieClip = target_mc.attachMovie("linkageID", "newName",
> > target_mc.getNextHighestDepth());
> >     return mc;
> >     }
> >
> >     var new_mc:MovieClip =
> > _level0.clipWIthLibraryItem.attachItem(this, "newName");
> >
> >     this is off the top of my head, but I've done it serveral times.
> > If you have questions, please email me: johng at acmewebworks.com
> >
> > JohnGrden said on Nov 5, 2004 at 7:48 AM :
> >
> >     you can't attach a dynamically created clip. what you probably
> > need to do is create a class that creates your clips so that it can be
> > called from anywhere you need it. You could even prototype a global
> > function if need be:
> >
> >     _global.createClip = function(sNameOfClip, target_mc)
> >     {
> >     var mc:MovieClip = target_mc.createEmptyMovieClip(sNameOfClip,
> > target_mc.getNextHighestDepth());
> >     return mc;
> >     }
> >
> >     questions: johng at acmewebworks.com
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