Prevent closing air app with cmd+w shortkey

[ABM]

hi!
i was wondering if there is any possibility to prevent closing the air app if the user click on command+w in his keyboard (Mac).

Regards,
Adil

[ABM]

Hi All,

I have the solution, and it works now for mac(cmd+W or cmd+Q) and win(alt+F4).

<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()">

  <mx:Script>
    <![CDATA[
      import mx.containers.Canvas;
      
      private var key_down: Boolean;
      private var os: String;
      
      private function init(): void
      {
        os = (Capabilities.os.search("Mac") >= 0) ? 'Mac' : 'Win';
        addEventListener( Event.CLOSING, onClosing );
        addEventListener( KeyboardEvent.KEY_DOWN, onKeyDown );
        addEventListener( KeyboardEvent.KEY_UP, onKeyUp );
      }
      
      private function onKeyDown( event: KeyboardEvent ): void
      {
        key_down = (os == 'Mac') ? event.commandKey : event.altKey;
      }
      
      private function onKeyUp( event: KeyboardEvent ): void
      {
        key_down = false;
      }
      
      private function onClosing( event: Event ): void
      {
        if( key_down && ( navigator.numChildren > 0 ) )
        {
          navigator.removeChild( navigator.selectedChild );
          event.preventDefault();
        }
      }
      
      private function addNewTab(): void
      {
        var canvas: Canvas = new Canvas();
        canvas.percentWidth = 100;
        canvas.percentHeight = 100;
        canvas.label = 'Tab ' + ( navigator.numChildren + 1 );
        canvas.setStyle( 'backgroundColor', uint( Math.random() * 255 ) << 16 | uint( Math.random() * 255 ) << 8 | uint( Math.random() * 255 ) );
        
        navigator.addChild( canvas );
        navigator.selectedIndex = ( navigator.numChildren - 1 );
      }
    ]]>
  </mx:Script>
  <mx:VBox bottom="10" top="10" left="10" right="10">
    <mx:HBox width="100%">
      <mx:Button label="Add New Tab" click="addNewTab()"/>
    </mx:HBox>
    <mx:TabNavigator id="navigator" width="100%" height="100%">
      <mx:Canvas label="Tab 1" width="100%" height="100%">
      </mx:Canvas>
    </mx:TabNavigator>
  </mx:VBox>
  
</mx:WindowedApplication>

Best Regards,
Adil

[beantickler]

The only bit of relevence is:...

addEventListener( Event.CLOSING, onClosing );
private function onClosing( event: Event ): void
{
event.preventDefault();
}

[ABM]

Hi, yes is true,

But this small app colse the tabs of the TabNavigator in thesame way as firefox does...

Regards,
Adil