Textinput issue from external file in AIR application (Is it bcz of mask?)

Question

Hi
I tried to load external swf in TabNavigator. In this file, I have some input text.
I can key in external file's text input after load. But i got  "Security Sandbox Violation" error.
Here is the code
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                                                     xmlns:s="library://ns.adobe.com/flex/spark"
                                                     xmlns:mx="library://ns.adobe.com/flex/mx">
<mx:TabNavigator width="100%" height="100%">
                    <mx:Canvas>
                                   <s:SWFLoader id="_swfLoader" source="C:\Users\bala\Desktop\TextSWF.swf"/>
                    </mx:Canvas>
</mx:TabNavigator>
</s:WindowedApplication>
To solve security issue, i used load swf as bytes. After load there is no security issues, but i cannot key in external file's text input.
Here is the code,
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
                           xmlns:s="library://ns.adobe.com/flex/spark"
                           xmlns:mx="library://ns.adobe.com/flex/mx">
<fx:Script>
                    <![CDATA[
                              protected function CreationCompleteHandler(event:FlexEvent):void
                                        var loader:URLLoader=new URLLoader();
                                        loader.dataFormat=URLLoaderDataFormat.BINARY;
                                        loader.addEventListener(Event.COMPLETE, onSWFLoaded);
                                        loader.load(new URLRequest("C:\\Users\\bala\\Desktop\\TextSWF.swf"));
                              private function onSWFLoaded(e:Event):void {
                                        var loader:URLLoader=URLLoader(e.target);
                                        loader.removeEventListener(Event.COMPLETE, onSWFLoaded);
                                        var context:LoaderContext=new LoaderContext(false, new ApplicationDomain());
                                        context.allowLoadBytesCodeExecution=true;
                                        _swfLoader.loaderContext = context;
                                        _swfLoader.load(loader.data);
                    ]]>
          </fx:Script>
<mx:TabNavigator width="100%" height="100%">
          <mx:Canvas>
                    <s:SWFLoader id="_swfLoader" />
          </mx:Canvas>
</mx:TabNavigator>
</s:WindowedApplication>
How can solve this issue. Is there anything to do with css?
Is tabnavigator conatin default mask? How can user edit masked textinput without embed font?
Thanks
Regards
Balasubramaniyan.S

Answer 1

Thanks for your reply,
Yes, the addedToStage handler is executed every time. I set my host application up to work exactly with that behaviour. There are several events going from client to host to help the communication inside the the application. I can't get behind the reason why it won't work.
I made a case where I created a camera instance inside the host application and passed it over to the client via
client.setupFunction(inArg: arg, sendCamera: Camera);
That works. But I also need a microphone, and I can't get the mic working over with the same technique. And also I'd prefer to have it all in the client, cause I designed the application model to work exactly in that fashion.
I guess it's a secruity sandboxing problem, but I can't find any documentation on this issue.
Thanks, maybe another solution can be found here. ;-)