Flex3 load flashpaper uses LocalConnection to communicate with flash

Code

Package com. magReader
{

Import flash. events. Event;
Import flash. events. StatusEvent;
Import flash.net. LocalConnection;
// Import flash. system. System;

Import mx. controls. SWFLoader;

/**
* UIComponent designed specifically to load FlashPaper documents
* And size them correctly in the available area.
*/
Public class FlashPaperLoader extends SWFLoader
{

/**
* The id of the FlashPaperLoader.swf proxy that will be used
* For communication pyurposes.
*/
Public static const FLASH_PAPER_LOADED: String = "flashPaperLoaded ";
Public static const FLASH_CONNERROR: String = "flashConnError ";
Private var sendFlashConn: LocalConnection;
Private var recieveFlashConn: LocalConnection;
/**
* The name of the application that is loading in the FlashPaperLoader.swf
* File. This name must correspond to the "id" attribute in the object tag
* And the "name" attribute in the embed tag when the Flex client is embedded
* Into the html page.
*/

/**
* Constructor
*/
Public function FlashPaperLoader ()
{
// Source = "app-storage:/data/fpHolder.swf ";
SendFlashConn = new LocalConnection ();
RecieveFlashConn = new LocalConnection ();
RecieveFlashConn. client = this;
Sendflashconn. addeventlistener (statusevent. Status, onstatus );
Sendflashconn. allowdomain ("*");
Recieveflashconn. allowdomain ("*");
Sendconn ();
}
Public Function sendconn (): void
{
Try
{
RecieveFlashConn. connect ("_ flexloader ");
} Catch (error: ArgumentError ){
Trace ("Can't connect... the connection name is already being used by another SWF ");
OnConnError ();
Return;
}
}

Private function onStatus (result: StatusEvent): void {

Trace (result. level = "error "? "Operation failed": "Operation succeeded ");

}
// Connection source Error
Private function onConnError (): void
{
// ErrUnload ();

Var e: Event = new Event (FlashPaperLoader. FLASH_CONNERROR );
DispatchEvent (e );
}

// ================================================ ======================================
// Expose methods that are proxied from flashpaperloader.swf-call
// Javascript methods that the flashpaperloader.swf file picks up
// And passes to the loaded flashpaper document.
// ================================================ ======================================

Public Function setsize (width: Number, height: Number): void
{
Trace ("========= setpapersize ================ ");
Sendflashconn. Send ("_ flashpaperloader", "setpapersize", width, height );
}
/**
* Prompt for successful document loading
**/
Public function fpLoaded (): void
{
Trace ("reveice fpLoaded message !! This. width = "+ this. width +" this. height "+ this. height );
// SetSize (parent. width, parent. height );
Var e: Event = new Event (FlashPaperLoader. FLASH_PAPER_LOADED );
DispatchEvent (e );
// This. visible = true;
}
/**
* Set Scaling
**/
Public function setZoom (value: Object): void
{
If (this. visible)
{
SendFlashConn. send ("_ flashpaperloader", "setCurrentZoom", value );
}
}

// Override protected function updateDisplayList (unscaledWidth: Number,
// UnscaledHeight: Number): void
//{
// If (contentHolder)
//{
/// Adjust values so the FlashPaper document is displayed correctly
// ContentHolder. scalex= 1.0;
// ContentHolder. scaleY = 1.0;
// ContentHolder. x = 0;
// ContentHolder. y = 0;
//
// ContentHolder. scrollRect = new Rectangle (0, 0, unscaledWidth, unscaledHeight );
//
/// When the content has loaded, call the setSize method so that
/// FlashPaper document sizes right in the available area
// If (Loader (contentHolder). content)
//{
// SetSize (unscaledWidth, unscaledHeight );
/// This. setFocus ();
//}
//}
//}

// Uninstall this SWF
Public Function unload (): void
{
If (sendflashconn! = NULL)
{
Sendflashconn. Send ("_ flashpaperloader", "Unload ");
Sendflashconn = NULL;
}
Try
{
If (recieveflashconn! = NULL)
{
Recieveflashconn. Close ();
RecieveFlashConn = null;
}
} Catch (e: ArgumentError)
{
Trace (e. toString ());
RecieveFlashConn = null;
}

Unloadandstop (true );
// System. GC ();
}
Public Function errunload (): void
{
If (sendflashconn! = NULL)
{
SendFlashConn. send ("_ flashpaperloader", "unload ");
SendFlashConn = null;
}
If (recieveFlashConn! = Null) recieveFlashConn = null;
UnloadAndStop (true );
// System. gc ();
}

} // End class
} // End package