AS3: Single File Loader

Single file loader for type like txt, xml, etc.

SOURCE CODE

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package { import flash.net.URLLoader; import flash.net.URLRequest; import flash.events.Event; import flash.events.IEventDispatcher; import flash.events.ProgressEvent; import flash.events.SecurityErrorEvent; import flash.events.HTTPStatusEvent; import flash.events.IOErrorEvent; /** * @file CSingleFileLoader.as * @author Abhishek Kumar */ public class CSingleFileLoader { public var prepare:Function; public var progress:Function; public var proceed:Function; public function CSingleFileLoader() { trace("CSingleFileLoader -> constructor"); } public function retrieve(src:String):void { trace("CSingleFileLoader -> retrieve src:", src); var loader:URLLoader = new URLLoader(); attachListeners(loader); var request:URLRequest = new URLRequest(src); try { loader.load(request); } catch(error:Error) { trace("CSingleFileLoader -> retrieve:", error.message); } } private function attachListeners(dispatcher:IEventDispatcher):void { trace("CSingleFileLoader -> attachListeners"); dispatcher.addEventListener(Event.COMPLETE, completeHandler); dispatcher.addEventListener(Event.OPEN, openHandler); dispatcher.addEventListener(ProgressEvent.PROGRESS, progressHandler); dispatcher.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler); dispatcher.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler); dispatcher.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler); } private function detachListeners(dispatcher:IEventDispatcher):void { trace("CSingleFileLoader -> detachListeners"); dispatcher.removeEventListener(Event.COMPLETE, completeHandler); dispatcher.removeEventListener(Event.OPEN, openHandler); dispatcher.removeEventListener(ProgressEvent.PROGRESS, progressHandler); dispatcher.removeEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler); dispatcher.removeEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler); dispatcher.removeEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler); } private function completeHandler(event:Event):void { trace("CSingleFileLoader -> completeHandler:", event, event.target); detachListeners(URLLoader(event.target)); if(proceed != null) proceed(event.target.data); } private function openHandler(event:Event):void { trace("CSingleFileLoader -> openHandler:", event); if(prepare != null) prepare(); } private function progressHandler(event:ProgressEvent):void { trace("CSingleFileLoader -> progressHandler loaded:", event.bytesLoaded, "total:", event.bytesTotal); if(progress != null) progress(event.bytesLoaded, event.bytesTotal); } private function securityErrorHandler(event:SecurityErrorEvent):void { trace("CSingleFileLoader -> securityErrorHandler:", event); } private function httpStatusHandler(event:HTTPStatusEvent):void { trace("CSingleFileLoader -> httpStatusHandler:", event); } private function ioErrorHandler(event:IOErrorEvent):void { trace("CSingleFileLoader -> ioErrorHandler:", event); } } }