var dragapproved=false
var minrestore=0
var initialwidth,initialheight
var ie5=document.all&&document.getElementById
var ns6=document.getElementById&&!document.all

var prevState = 0;
var monitorTimerId = 0;
var inputTrackerScrolling = false;
var inputTrackerIgnoreChange = false;
var aspectRatio="default";
var liveFeedText = new Array("Live", "((Live))", "(( Live ))", "((  Live  ))");
var liveFeedRoll = 0;

function iecompattest(){
	return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function drag_drop(e){
	if (ie5&&dragapproved&&event.button==1){
		document.getElementById("dwindow").style.left=tempx+event.clientX-offsetx+"px"
		document.getElementById("dwindow").style.top=tempy+event.clientY-offsety+"px"
	}
	else if (ns6&&dragapproved){
		document.getElementById("dwindow").style.left=tempx+e.clientX-offsetx+"px"
		document.getElementById("dwindow").style.top=tempy+e.clientY-offsety+"px"
	}
}

function initializedrag(e){
	offsetx=ie5? event.clientX : e.clientX
	offsety=ie5? event.clientY : e.clientY
	document.getElementById("dwindowcontent").style.display="none" //extra
	tempx=parseInt(document.getElementById("dwindow").style.left)
	tempy=parseInt(document.getElementById("dwindow").style.top)
	
	dragapproved=true
	document.getElementById("dwindow").onmousemove=drag_drop
}

function loadwindow(url,width,height){
	if (!ie5&&!ns6)
		window.open(url,"","width=width,height=height,scrollbars=1")
	else{
		document.getElementById("dwindow").style.display=''
		document.getElementById("dwindow").style.width=initialwidth=width+"px"
		document.getElementById("dwindow").style.height=initialheight=height+"px"
		document.getElementById("dwindow").style.left="30px"
		document.getElementById("dwindow").style.top=ns6? window.pageYOffset*1+30+"px" : iecompattest().scrollTop*1+30+"px"
		document.getElementById("cframe").src=url
	}
}

function maximize(){
	if (minrestore==0){
		minrestore=1 //maximize window
		document.getElementById("maxname").setAttribute("src","restore.gif")
		document.getElementById("dwindow").style.width=ns6? window.innerWidth-20+"px" : iecompattest().clientWidth+"px"
		document.getElementById("dwindow").style.height=ns6? window.innerHeight-20+"px" : iecompattest().clientHeight+"px"
	}
	else{
		minrestore=0 //restore window
		document.getElementById("maxname").setAttribute("src","max.gif")
		document.getElementById("dwindow").style.width=initialwidth
		document.getElementById("dwindow").style.height=initialheight
	}
	document.getElementById("dwindow").style.left=ns6? window.pageXOffset+"px" : iecompattest().scrollLeft+"px"
	document.getElementById("dwindow").style.top=ns6? window.pageYOffset+"px" : iecompattest().scrollTop+"px"
}

function closeit(){
	document.getElementById("dwindow").style.display="none"
}

function stopdrag(){
	dragapproved=false;
	document.getElementById("dwindow").onmousemove=null;
	document.getElementById("dwindowcontent").style.display="" //extra
}

function init(){
    if( navigator.appName.indexOf("Microsoft Internet")==-1 )
    {
        onVLCPluginReady()
    }
    else if( document.readyState == 'complete' )
    {
        onVLCPluginReady();
    }
    else
    {
        /* Explorer loads plugins asynchronously */
        document.onreadystatechange=function() {
            if( document.readyState == 'complete' )
            {
                onVLCPluginReady();
            }
        }
    }
}

function getVLC(name)
{
    if (window.document[name]) 
    {
        return window.document[name];
    }
    if (navigator.appName.indexOf("Microsoft Internet")==-1)
    {
        if (document.embeds && document.embeds[name])
            return document.embeds[name]; 
    }
    else // if (navigator.appName.indexOf("Microsoft Internet")!=-1)
    {
        return document.getElementById(name);
    }
}

function onVLCPluginReady()
{
    updateVolume(0);
};

function updateVolume(deltaVol)
{
    var vlc = getVLC("vlc");
    vlc.audio.volume += deltaVol;
    document.getElementById("volumeTextField").innerHTML = vlc.audio.volume+"%";

};

function formatTime(timeVal)
{
    var timeHour = Math.round(timeVal / 1000);
    var timeSec = timeHour % 60;
    if( timeSec < 10 )
        timeSec = '0'+timeSec;
    timeHour = (timeHour - timeSec)/60;
    var timeMin = timeHour % 60;
    if( timeMin < 10 )
        timeMin = '0'+timeMin;
    timeHour = (timeHour - timeMin)/60;
    if( timeHour > 0 )
        return timeHour+":"+timeMin+":"+timeSec;
    else
        return timeMin+":"+timeSec;
};

function monitor()
{
    var vlc = getVLC("vlc");
    if( vlc.log.messages.count > 0 )
    {
        // there is one or more messages in the log
        var iter = vlc.log.messages.iterator();
        while( iter.hasNext )
        {
            var msg = iter.next();
            var msgtype = msg.type.toString();
            if( (msg.severity == 1) && (msgtype == "input") )
            {
                alert( msg.message );
            }
        }
        // clear the log once finished to avoid clogging
        vlc.log.messages.clear();
    }
    var newState = vlc.input.state;
    if( prevState != newState )
    {
        if( newState == 0 )
        {
            // current media has stopped 
            onStop();
        }
        else if( newState == 1 )
        {
            // current media is openning/connecting
            onOpen();
        }
        else if( newState == 2 )
        {
            // current media is buffering data
            onBuffer();
        }
        else if( newState == 3 )
        {
            // current media is now playing
            onPlay();
        }
        else if( vlc.input.state == 4 )
        {
            // current media is now paused
            onPause();
        }
        prevState = newState;
    }
    else if( newState == 3 )
    {
        // current media is playing
        onPlaying();
    }
    if( ! monitorTimerId )
    {
        monitorTimerId = setInterval("monitor()", 1000);
    }
};

/* actions */
function doChangeAspectRatio(arValue)
{
    var vlc = getVLC("vlc");
    if( vlc.input.state && vlc.input.hasVout )
    {
        vlc.video.aspectRatio = arValue;
    }
    aspectRatio = arValue;
};

function doGo(targetURL)
{
    var vlc = getVLC("vlc");
    var options = new Array(":aspect-ratio="+aspectRatio,":http-caching=2000",":vout-filter=deinterlace",":deinterlace-mode=blend");
		
    vlc.playlist.items.clear();
    while( vlc.playlist.items.count > 0 )
    {
        // clear() may return before the playlist has actually been cleared
        // just wait for it to finish its job
    }
    var itemId = vlc.playlist.add(targetURL, null, options);
    if( itemId != -1 )
    {
        // clear the message log and enable error logging
        vlc.log.verbosity = 1;
        vlc.log.messages.clear();
        // play MRL
        vlc.playlist.playItem(itemId);
        if( monitorTimerId == 0 )
        {
            monitor();
        }
    }
    else
    {
        // disable log
        vlc.log.verbosity = -1;
        alert("cannot play at the moment !");
    }
};

function doPlayOrPause()
{
    var vlc = getVLC("vlc");
    if( vlc.playlist.isPlaying )
    {
        vlc.playlist.togglePause();
    }
    else if( vlc.playlist.items.count > 0 )
    {
        // clear the message log and enable error logging
        vlc.log.verbosity = 1;
        vlc.log.messages.clear();
        vlc.playlist.play();
        monitor();
    }
    else
    {
        // disable log
        vlc.log.verbosity = -1;
        alert('nothing to play !');
    }
};

function doStop()
{
    getVLC("vlc").playlist.stop();
    if( monitorTimerId != 0 )
    {
        clearInterval(monitorTimerId);
        monitorTimerId = 0;
    }
    onStop();
};

function doPlaySlower()
{
    var vlc = getVLC("vlc");
    vlc.input.rate = vlc.input.rate / 2;
};

function doPlayFaster()
{
    var vlc = getVLC("vlc");
    vlc.input.rate = vlc.input.rate * 2;
};

/* events */
function onOpen()
{
//    document.getElementById("info").innerHTML = "Opening...";
    document.getElementById("PlayOrPause").disabled = true;
    document.getElementById("Stop").disabled = false;
};

function onBuffer()
{
//    document.getElementById("info").innerHTML = "Buffering...";
    document.getElementById("PlayOrPause").disabled = true;
    document.getElementById("Stop").disabled = false;
};

function onPlay()
{
    document.getElementById("PlayOrPause").value = "Pause";
    document.getElementById("PlayOrPause").disabled = false;
    document.getElementById("Stop").disabled = false;
    onPlaying();
};

function onPlaying()
{
    if( ! inputTrackerScrolling )
    {
        var vlc = getVLC("vlc");
        var info = document.getElementById("info");
        var mediaLen = vlc.input.length;
        inputTrackerIgnoreChange  = true;
        if( mediaLen > 0 )
        {
            // seekable media
//            if( inputTracker.maxVal != 1.0 )
//            {
//                document.getElementById("PlayOrPause").disabled = false;
//                inputTracker.setDisabled(false);
//                inputTracker.maxVal = 1.0;
//            }
//            inputTracker.setValue(vlc.input.position);
            info.innerHTML = formatTime(vlc.input.time)+"/"+formatTime(mediaLen);
        }
        else
        {
            // non-seekable "live" media
//            if( inputTracker.maxVal != 0.0 )
//            {
//                document.getElementById("PlayOrPause").disabled = true;
//                inputTracker.maxVal = 0.0;
//                inputTracker.setValue(0.0);
//                inputTracker.setDisabled(true);
//            }
//            liveFeedRoll = liveFeedRoll & 3;
//            info.innerHTML = liveFeedText[liveFeedRoll++];
        }
        inputTrackerIgnoreChange  = false;
    }
};

function onPause()
{
    document.getElementById("PlayOrPause").value = " Play ";
};

function onStop()
{
    var vlc = getVLC("vlc");
    // disable logging
    vlc.log.verbosity = -1;
    document.getElementById("Stop").disabled = true;
//    if( ! inputTracker.disabled )
//    {
//        inputTrackerIgnoreChange  = true;
//        inputTracker.setValue(0.0);
//        inputTracker.setDisabled(true);
//        inputTracker.maxVal = 0.0;
//        inputTrackerIgnoreChange  = false;
//    }
//    document.getElementById("info").innerHTML = "-:--:--/-:--:--";
    document.getElementById("PlayOrPause").value = " Play ";
    document.getElementById("PlayOrPause").disabled = false;
};

function onInputTrackerScrollStart()
{
    inputTrackerScrolling = true;
};

function onInputTrackerScrollEnd(inputTracker, value, pos)
{
    inputTrackerScrolling = false;
};

function onInputTrackerChange(inputTracker, value, pos)
{
    if( ! inputTrackerIgnoreChange )
    {
        var vlc = getVLC("vlc");
        if( (vlc.input.state == 3) && (vlc.input.position != value) )
        {
            var info = document.getElementById("info");
            vlc.input.position = value;
            info.innerHTML = formatTime(vlc.input.time)+"/"+formatTime(vlc.input.length);
        }
    }
};