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<?xml version="1.0"?>
<!--                                                               -->
<!-- Adobe Flex 4 source file of APlayer.swf,                      -->
<!-- a FlashPlayer-10 compatible component for playing             -->
<!-- MP3 audio files and streams.                                  -->
<!--                                                               -->
<!-- version 20120301                                              -->
<!--                                                               -->
<!--                                                               -->
<!-- The free Adobe Flex 4 SDK is required to compile              -->
<!-- this file. Get it from                                        -->
<!--                                                               -->
<!--        http://www.adobe.com/products/flex/                    -->
<!--                                                               -->
<!-- and run                                                       -->
<!--                                                               -->
<!-- mxmlc -static-link-runtime-shared-libraries APlayer.mxml      -->
<!--                                                               -->
<!-- on the command line.                                          -->
<!--                                                               -->
<!--                                                               -->
<!-- Copyright (C) 2012 Alexander Grahn                            -->
<!--                                                               -->
<!-- This work may be distributed and/or modified under the        -->
<!-- conditions of the LaTeX Project Public License, either        -->
<!-- version 1.3 of this license or (at your option) any later     -->
<!-- version.                                                      -->
<!--                                                               -->
<!-- The latest version of this license is in                      -->
<!--   http://www.latex-project.org/lppl.txt                       -->
<!-- and version 1.3 or later is part of all distributions of      -->
<!-- LaTeX version 2005/12/01 or later.                            -->
<!--                                                               -->
<!-- This work has the LPPL maintenance status `maintained'.       -->
<!--                                                               -->
<!-- The current maintainer of this work is A. Grahn.              -->
<!--                                                               -->

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
  xmlns:s="library://ns.adobe.com/flex/spark"
  xmlns:mx="library://ns.adobe.com/flex/mx"
  preinitialize="initialise(FlexGlobals.topLevelApplication.parameters);"
  applicationComplete="initSound();addEventListener(Event.ENTER_FRAME, onEnterFrame);"
  mouseDown="pause();"
  mouseUp="play();"
>
  
    <fx:Script>
        <![CDATA[
            [Bindable] private var source:String;
            [Bindable] private var autoPlay:Boolean=false;
            [Bindable] private var loop:Boolean=false;
            [Bindable] private var volume:Number=0.75;
            [Bindable] private var balance:Number=0;

            private var snd:Sound;
            private var sndCh:SoundChannel;
            private var sndTr:SoundTransform;
            private var playResumePosition:Number = 0;
            private var playing:Boolean = false;

            import mx.core.FlexGlobals;
            private function initialise(flashVars:Object):void{
              source=flashVars.source;
              if(flashVars.autoPlay){autoPlay=(flashVars.autoPlay=='true')}
              if(flashVars.loop){loop=(flashVars.loop=='true')}
              if(flashVars.volume){volume=Number(flashVars.volume)}
              if(flashVars.balance){balance=Number(flashVars.balance)}
            }
            
            import mx.controls.Alert;
            private function initSound():void
            {
                snd = new Sound(new URLRequest(source));
                sndTr = new SoundTransform(volume, balance);
                
                snd.addEventListener(IOErrorEvent.IO_ERROR, errorHandler);
                snd.addEventListener(ProgressEvent.PROGRESS, progressHandler);
                snd.addEventListener(Event.COMPLETE, completeHandler);

                if(autoPlay) play();
            }
            
            private function play():void
            {
              if (!playing)
              {
                try{sndCh = snd.play(playResumePosition, 0, sndTr);}
                catch(err:Error){Alert.show(err.message,'Error');}
                sndCh.addEventListener(Event.SOUND_COMPLETE, sndCompleteHandler);
                playing = true;
              }
            }
            
            private function pause():void
            {
              if (playing)
              {
                playResumePosition = sndCh.position;
                sndCh.stop();
                playing = false;
              }
            }

            private function sndCompleteHandler(event:Event):void
            {
              playing = false;
              playResumePosition = 0;
              if(loop) play();
            }
            
            private function completeHandler(event:Event):void
            {
              playProgress.indeterminate=false;
            }
            
            import flash.events.ProgressEvent;
            private function progressHandler(event:ProgressEvent):void{
              playProgress.indeterminate=true;
              if(playing){
                playProgress.setProgress(0.5,1);
              }
            }
            
            private function onEnterFrame(event:Event):void{
              if(playProgress.indeterminate==false && playing){
                playProgress.setProgress(sndCh.position,snd.length);
              }
            }

            import flash.events.IOErrorEvent;
            private function errorHandler(errorEvent:IOErrorEvent):void{
               Alert.show(errorEvent.text + '\ncould not be loaded','Error');
            }

        ]]>
    </fx:Script>

    <mx:ProgressBar width="100%" mode="manual"
        horizontalCenter="0" verticalCenter="0" labelPlacement="center"
        label="" id="playProgress"
    />
</s:Application>