Question

There is a parent Flex application that allows you to embed custom tools in it (SWF files).

I have inspected the HTML wrapper for the parent and it uses SWFObject, and has full screen permitted:

<param name="allowFullScreen" value="true" />
<param name="allowFullScreen" value="true" />

I am trying to put together a tool that simply takes the parent application to & from full screen mode.

Here is a simplified version of the code. I have tried several variations, but still had no luck.

public function toogleScreen():void
{
 // this is fired from a function within the child swf
  if (this.stage.displayState == StageDisplayState.FULL_SCREEN)
   this.stage.displayState=StageDisplayState.NORMAL;
 else
   this.stage.displayState=StageDisplayState.FULL_SCREEN;
}

Stepping through the code identifies the issue:

SecurityError: Error #2152: Full screen mode is not allowed.
at flash.display::Stage/set_displayState()
at flash.display::Stage/set displayState()
at ExampleCustomTools.FullScreen::fullscreen/toogleScreen()[C:\Users\Simon\Adobe Flash Builder 4\DekhoSimulator_Viewshed\src\ExampleCustomTools\FullScreen\fullscreen.mxml:53]
at ExampleCustomTools.FullScreen::fullscreen/init()[C:\Users\Simon\Adobe Flash Builder 4\DekhoSimulator_Viewshed\src\ExampleCustomTools\FullScreen\fullscreen.mxml:40]
at ExampleCustomTools.FullScreen::fullscreen/___fullscreen_Module1_creationComplete()[C:\Users\Simon\Adobe Flash Builder 4\DekhoSimulator_Viewshed\src\ExampleCustomTools\FullScreen\fullscreen.mxml:7]
at flash.events::EventDispatcher/dispatchEventFunction()
at flash.events::EventDispatcher/dispatchEvent()
at mx.core::UIComponent/dispatchEvent()[E:\dev\hero_private_beta\frameworks\projects\framework\src\mx\core\UIComponent.as:12977]
at mx.core::UIComponent/set initialized()[E:\dev\hero_private_beta\frameworks\projects\framework\src\mx\core\UIComponent.as:1757]
at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\hero_private_beta\frameworks\projects\framework\src\mx\managers\LayoutManager.as:819]
at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\hero_private_beta\frameworks\projects\framework\src\mx\managers\LayoutManager.as:1157]

What am I missing here? I imagine it maybe related to it being a separate swf to the main parent swf?

Answer 1

In Flash player, you can only make the application full screen in response to a mouse click. Your function, toogleScreen, is not a mouse event handler.