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flexzionist
Participant
July 11, 2013
Question

Loading font class fails when loader is being subloaded from app-storage://

  • July 11, 2013
  • 1 reply
  • 953 views

Hi

I'm developing a presentation that has to work on Web(Pure AS3), Desktop, Android and iOS.


I make use of shared runtime fonts using same technique as illustrated here:
http://www.scottgmorgan.com/runtime-font-embedding-in-as3-there-is-no-need-to-embed-the-entire-fontset-anymore/

Specifically:

private function fontLoaded(event:Event):void { 
     var FontLibrary:Class = event.target.applicationDomain.getDefinition("_Arial") as Class; 
     Font.registerFont(FontLibrary._Arial); 
}

Problem when running in AIR:

*AIR-SWF = SWF's compiled for AIR
*AS3-SWF = SWF's compiled for FlashPlayer

The AS3-SWF that loads the AS3-SWF-font is placed in the same domain as the AS3-SWF-font , namely app-storage://
The AIR-SWF that loads the AS3-SWF - that loads the AS3-SWF-font.swf - is, naturally, running from app://

So the scenario that fails is this:

app://AppLoader.swf > app-storage://MainAppUIAndFunctionality.swf > app-storage://fonts/fNormal.swf

When i'm testing my MainApp, just as test SWF's , just as regular web/html/flash.. it all works..
But when my mainApp is being loaded by my AIR loader, it doesent work anymore.


In the AS3-SWF's I've set communincation "Local Access" and applied System.allowDomain("*") which indeed makes me able to communicate both ways, all the way to the AIR-SWF (not directly, but by referencing objects/functions)

So..no security errors, still I supsect sandbox/domain issue ^^..


Any ideas how to make it work?


Edit:

After i try use:

var FontLibrary:Class = event.target.applicationDomain.getDefinition("_Arial") as Class;
Font.registerFont(FontLibrary._Arial);

The error i get is:

The value specified for argument font is invalid.

    at flash.text::Font$/registerFont()

This topic has been closed for replies.

1 reply

F
flexzionistAuthor
Participant
July 11, 2013

Solution found at: http://code.google.com/p/maashaack/wiki/ApplicationDomain

var urlloader:URLLoader = new URLLoader();
       urlloader.dataFromat = URLLoaderDataFormat.BINARY;
       urlloader.addEventListener( Event.COMPLETE, onComplete );
       urlloader.load( new URLRequest( "other.swf" ) );

var onComplete:Function = function( event:Event ):void
{
    var loader:Loader = new Loader();
    var AD:ApplicationDomain = ApplicationDomain.currentDomain;
    //with loadBytes(0 -- the checkPolicyFile and securityDomain properties of the LoaderContext object do not apply.
    //var SD:SecurityDomain    = SecurityDomain.currentDomain;
    var context:LoaderContext = new LoaderContext( false, AD );
           context.allowLoadBytesCodeExecution = true;

    loader.loadBytes( urlloader.data, context );
}

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