/*
 * WindowsMediaPlayer
 * copyright 2005 Axisto Media Ltd. All rights reserved.
 * by Andreas Rimbe, Axisto Media Ltd (andreas.rimbe@axisto.com, http://www.axisto.com/)
 *
 * v1.5 - 06-05-2005
 *
 * Creates a windows media player object
 *
 * Usage:
 *
 *	wmp = new FlashObject("divWhereCreateMP", width, height);
 *	wmp.setUrl("");
 *
 */
WindowsMediaPlayer = function(divId, id, width, height, version)
{
	this.id = id ? id : "mp";
	this.divId = divId ? divId : "video";
	this.audioOnlyImageId = 'audioonly';

	this.autoStart = true;
	this._wmp64PreRollTime = 0;
	this.currentPosition = 0;
	this.isSeeking = false;
	this.bufferProgress = 0;
	this.eventTimer = null;
	this.eventUpdateInterval = 500;
	this.isNSPlugin = false;			// NS<5 and WMP 6.4
	this.isNSApplet = false;			// NS > 6 and WMP v9+
	this.isWMP64 = false;
	this.playState = 0;
	
	this.useCallbacks = true;
	
	this.version = version ? version.toLowerCase() : "";

	if(this.version == 'wmp_64')
	{
		this.isWMP64 = true;
	}
	else if(this.version == 'wmp_plugin')
	{
		this.isNSPlugin = true;
	}
	else if(this.version == 'wmp_applet')
	{
		this.isNSApplet = true;
	}
	this.width = width ? width : 320;
	this.height = height ? height : 240;
	this.origHeight = this.height;
	this.uiMode = "";
	this.volume = 70;
	//do detection
	this.wmpInfo = detectWMP();
	if(this.wmpInfo.installed)
	{
		if(this.wmpInfo.versionInfo == "6.4")
		{
			this.isWMP64 = true;
		}
		else if(this.wmpInfo.versionInfo == "PluginVersion")
		{
			this.isNSPlugin = true;
		}
		
		if(!this.wmpInfo.scriptable && isFF)
		{
		    var ffMsg = "Your Windows Media Player plugin for Firefox does not support webcast slide synchronisation. You can either select the Real Player option or install the ActiveX plugin for Firefox.\r Would you like to install the AxtiveX plugin for Firefox?";
		    var yes = confirm(ffMsg);
		    if(yes)
		    {
		        window.location.href = "http://forums.mozillazine.org/viewtopic.php?t=206213";
		    }
		    else
		    {
		        try
		        {
		            window.location.href = selectPlayerUrl;
		        }
		        catch(ex)
		        {	        
		        }
		    }
		}
	}
	else
	{
		//fix for ff on win
		if(navigator.userAgent.indexOf('Windows') != -1 && isFF)
		{
			this.wmpInfo.installed = true;
			this.isNSPlugin = false;
			this.isNSApplet = false;
			this.isWMP64 = false;
		}
		else
		{
			alert("You have selected Windows Media Player option, which is not installed on your system. Please select another player or alternatively download and install Windows Media Player from http://www.microsoft.com/windows/windowsmedia/mp10/default.aspx ");
		}
	}
}
WindowsMediaPlayer.prototype.write = function()
{
	if(this.wmpInfo.installed)
	{
		var s = this.createHtml();
		writeLayer(this.divId, null, s);
		this.mp = findObj(this.id);
	}
}
WindowsMediaPlayer.prototype.destroy = function()
{
	if(this.eventTimer != null)
	{
		clearTimeout(this.eventTimer);
		this.eventTimer = null;
	}
	this.mp = findObj(this.id);

	if(isIE && this.mp != null)
	{
		this.stop();
		var p = findObj(this.divId);
		try
		{
			p.removeChild(this.mp);
		}
		catch(e)
		{
		}
		this.mp = null;
	}
	else
	{
		this.mp = null;
	}
}
WindowsMediaPlayer.prototype.createHtml = function()
{
	var strWMP = "";

	if(isIE)
	{
		if(this.isWMP64)
		{
			strWMP = '<object id="'+this.id+'" classid="CLSID:22D6f312-B0F6-11D0-94AB-0080C74C7E95"';
			strWMP += ' width="'+this.width+'" height="'+this.height+'"';
			strWMP += '	STANDBY="Loading Windows Media Player components..."';
			strWMP += '	TYPE="application/x-oleobject" VIEWASTEXT>';
			strWMP += '<param name="AutoStart" value="'+this.autoStart.toString()+'">';
			strWMP += '<param name="AutoSize" value="1">';
			strWMP += '<param name="DisplaySize" value="0">';

			if(this.uiMode == "full" || this.uiMode == "audio")
			{
				strWMP += '<param name="ShowControls" value="1">';
				strWMP += '<param name="ShowStatusBar" value="1">';
			}
			else
			{
				strWMP += '<param name="ShowControls" value="0">';
				strWMP += '<param name="ShowStatusBar" value="0">';
			}
			
			if(this.currentPosition > 0)
			{
				strWMP += '<param name="CurrentPosition" value="' + this.currentPosition + '">';
			}
			strWMP += '<param name="Volume" value="-300">';
			strWMP += '</object>';
		}
		else
		{
			//WMP7+
			strWMP = '<object id="'+this.id+'" classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6"';
			strWMP += ' width="'+this.width+'" height="'+this.height+'">';
			strWMP += '<param name="autostart" value="'+this.autoStart.toString()+'" />';
			if(this.uiMode != "audio")
			{
				strWMP += '<param name="uiMode" value="'+this.uiMode+'" />';
			}
			if(this.url != null)
			{
				strWMP += '<param name="url" value="'+this.url+'" />';
			}
			if(this.currentPosition > 0)
			{
				strWMP += '<param name="currentposition" value="' + this.currentPosition + '">';
			}
			strWMP += '<param name="volume" value="' + this.volume + '" />';
			strWMP += '</object>';
		}
	}
	else
	{
		//WMP7+
		if(this.wmpInfo.scriptable)
		{
			strWMP = '<object id="'+this.id+'" classid="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6"';
			strWMP += ' width="'+this.width+'" height="'+this.height+'">';
			strWMP += '<param name="autoStart" value="' + this.autoStart.toString() + '" />';
			if(this.uiMode != "audio")
			{
				strWMP += '<param name="uiMode" value="'+this.uiMode+'" />';
			}
			if(this.url != null)
			{
				strWMP += '<param name="url" value="'+this.url+'" />';
			}
			strWMP += '<param name="volume" value="' + this.volume + '" />';
			strWMP += '</object>';
		}
		else
		{
			strWMP = '<object id="'+this.id+'" type="video/x-ms-wmv"';
			if(this.url != null)
			{
				strWMP += ' data="'+this.url+'"';
			}
			strWMP += ' width="'+this.width+'" height="'+this.height+'">';
			strWMP += '<param name="autoStart" value="'+this.autoStart.toString()+'" />';
			if(this.uiMode != "audio")
			{
				strWMP += '<param name="uiMode" value="'+this.uiMode+'" />';
			}
			strWMP += '<param name="volume" value="70" />';
			strWMP += '</object>';
			
			//alert(strWMP);
		}
	}
	
	//events
	strWMP += '\n<script language="javascript" for="' + this.id + '" event="ScriptCommand(Type, Param)">';
	strWMP += '\nplayer_event("scriptCommand", Type, Param);';
	strWMP += '\n</script>';
	
	return strWMP;
}
WindowsMediaPlayer.prototype.checkState = function()
{
	//document scope
	var x = this.getPlayState();
	if(x != null && (x == 6 || x != this.playState))
	{
		this.playState = x;
		if(this.playStateChange != null)
		{
			this.playStateChange(this.playState);
		}
	}
	var y = this.getPosition();
	if(y != null && y > 0)
	{
	    if(this.isSeeking)
	    {
	        if(y > this.currentPosition && y < this.currentPosition + 2)
	        {
	            this.isSeeking = false;
    	        this.currentPosition = y;
	            if(this.positionChange != null)
	            {
		            this.positionChange(this.currentPosition);
	            }
	        }   
	    }
	    else if(y != this.currentPosition)
	    {
		    this.currentPosition = y;
	        if(this.positionChange != null)
	        {
		        this.positionChange(this.currentPosition);
	        }
	    }
	}
	
	this.eventTimer = setTimeout(this.id+".checkState()", this.eventUpdateInterval);
}
WindowsMediaPlayer.prototype.getDuration = function()
{
	var x = 0;
	try
	{
		if(this.isNSPlugin)
		{
 			x = this.mp.GetDuration()+1;
		}
		else if (this.isWMP64)
		{
			x = this.mp.Duration+1;
		}
		else
		{
			if(this.isNSApplet)
			{
				x = this.mp.getCurrentMedia().getDuration();
			}
			else
			{
				x = this.mp.currentMedia.duration;
			}
		}
	}
	catch(e)
	{
	}
	return x;
}
WindowsMediaPlayer.prototype.getPlayState = function()
{
	var ps = 0;
	try
	{
		if(this.isWMP64 || this.isNSPlugin)
		{
 			if(this.isNSPlugin)
 			{
	 			ps = this.mp.GetPlayState()+1;
			}
			else if (this.isWMP64)
			{
				ps = this.mp.PlayState+1;
			}
 			if(ps == 4)
 			{
 				//check buffering
	 			ps = 6;
	 			var x = this.getBufferingProgress();
	 			if(x != 0 && x <= 100 && x != this.bufferProgress)
	 			{
	 				this.bufferProgress = x;
	 			}
 			}
		}
		else
		{
			ps = this.mp.playState;
			if(ps == 6)
			{
				this.bufferProgress = this.getBufferingProgress();
			}
		}
	}
	catch(e)
	{
	}
	return ps;
}
// CurrentPosition
WindowsMediaPlayer.prototype.getPosition = function()
{
	var pos = -1;
	try
	{
		if(this.isNSPlugin)
		{
 			pos =  this.mp.GetCurrentPosition();
		}
		else if (this.isWMP64)
		{
			pos = this.mp.CurrentPosition;
		}
		else
		{
			// If using v7+ interface set through applet's setXXX routine or
			// by setting property directly
			if(this.isNSApplet)
			{
				pos = this.mp.getControls().getCurrentPosition();
			}
			else
			{
				pos = this.mp.controls.currentPosition;
			}
		}
	}
	catch(e)
	{
	}
	return pos;
}
WindowsMediaPlayer.prototype.setPosition = function(time)
{
	try
	{
		this.isSeeking = true;
		this.currentPosition = time;
		if(this.isNSPlugin)
		{
 			if(this.mp.GetPlayState() == 0 || this.mp.GetPlayState() == 1 || this.mp.GetPlayState() == 2)
 			{
				if(time-this._wmp64PreRollTime>=0)
				{
 					time -= this._wmp64PreRollTime;
 				}
 				if(this.mp.GetCurrentPosition() != time)
 				{
 					this.mp.SetCurrentPosition(time);
 				}
 			}
 			else
 			{
				this.currentPosition = time;
				return;
			}
		}
		else if (this.isWMP64)
		{
			if(this.mp.PlayState == 0 || this.mp.PlayState == 1 || this.mp.PlayState == 2)
			{
				if(time-this._wmp64PreRollTime>=0)
				{
 					time -= this._wmp64PreRollTime;
 				}
				if(this.mp.CurrentPosition != time)
				{
					this.mp.CurrentPosition = time;
				}
			}
			else
			{
				this.currentPosition = time;
			}
		}
		else
		{
			// If using v7+ interface set through applet's setXXX routine or
			// by setting property directly
			if(this.isNSApplet)
			{
				if(this.mp.getControls().isAvailable('currentPosition'))
				{
					this.mp.getControls().setCurrentPosition(time);
				}
				else
				{
					this.currentPosition = time;
				}
			}
			else
			{
				if(this.mp.controls.isAvailable('currentPosition'))
				{
					this.mp.controls.currentPosition = time;
				}
				else
				{
					this.currentPosition = time;
				}
			}
		}
	}
	catch(e)
	{
	    this.isSeeking = false;
	}
}
WindowsMediaPlayer.prototype.setZoom = function(p)
{
	var w = this.width*(p/100.0);
	w = w>0?w:1;
	var h = this.height*(p/100.0);
	h = h>0?h:1;
	this.setSize(w, h);
	
	//hide audioonly image
	var img = findObj(this.audioOnlyImageId);
	if(p == 0 && img != null)
	{
		img.style.display = 'none';
		//alert("hide image" + img);
	}
	else if(img != null && (this.uiMode == "audio" || this.uiMode == "invisible"))
	{
		img.style.display = 'block';
		//alert("show image" + img);
	}
}
WindowsMediaPlayer.prototype.setSize = function(w, h)
{
	if(this.mp != null)
	{
		if(document.all && !document.getElementById)
		{
			document.all[this.id].style.pixelWidth = w;
			document.all[this.id].style.pixelHeight = h;
		}
		else
		{
			document.getElementById(this.id).style.width = w+"px";
			document.getElementById(this.id).style.height = h+"px";
		}
	}
	else
	{
		this.height = 1;
		this.width = 1;
	}
}
WindowsMediaPlayer.prototype.setUIMode = function(mode)
{
	if(this.uiMode != mode)
	{
		this.uiMode = mode;
		switch(mode)
		{
			case "audio":
			{
				if(this.isWMP64)
				{
					this.height = 70;
				}
				else
				{
					this.height = 63;
				}
				break;
			}
			case "none":
			{
				this.height = this.origHeight;
				break;
			}
			case "full":
			{
				if(this.isWMP64)
				{
					this.height = this.origHeight+70;
				}
				else
				{
					this.height = this.origHeight+65;
				}
				break;
			}
			case "invisible":
			{
				this.setZoom(0);
				break;
			}
		}
		if(this.mp != null)
		{
			this.setSize(this.width, this.height);
		}
		
		var img = findObj(this.audioOnlyImageId);
		if(img != null)
		{
			if((mode == "audio" || mode == "invisible") && img.src != "")
			{
				img.style.display = 'block';
				img.style.visibility = 'visible';
			}
			else
			{
				img.style.display = 'none';
				img.style.visibility = 'hidden';
			}
		}
		//audio - show image and controls
		//none - video window only
		//full - with controls
		//invisible
	}
}
WindowsMediaPlayer.prototype.setImage = function(url)
{
	var img = findObj("audioonly-image");
	if(img != null && url != null && url != "")
	{
		//alert(url + this.uiMode);
		img.src = url;
		if(this.uiMode == "audio" || this.uiMode  == "invisible")
		{
			img.style.display = 'block';
		}
	}	
}
// URL
WindowsMediaPlayer.prototype.setUrl = function(url)
{
	this.url = url;
	if(this.mp != null)
	{
		try
		{
			if(this.isNSPlugin)
			{
 				this.mp.SetFileName(url);
			}
			else if (this.isWMP64)
			{
				this.mp.FileName = url;
			}
			else
			{
				// If using v7+ interface set through applet's setXXX routine or
				// by setting property directly
				if(this.isNSApplet)
				{
					this.mp.setURL(url);
				}
				else
				{
					this.mp.URL = url;
				}
			}
			
			if(this.useCallbacks && this.eventTimer == null)
			{
				this.eventTimer = setTimeout(this.id+".checkState()", this.eventUpdateInterval);
			}
		}
		catch(e)
		{
		}
	}
}
// Volume
WindowsMediaPlayer.prototype.getVolume = function()
{
	var vol = -1;
	try
	{
		if(this.isNSPlugin)
		{
 			vol = this.mp.GetVolume();
		}
		else if (this.isWMP64)
		{
			vol = this.mp.Volume;
		}
		else
		{
			// If using v7+ interface set through applet's setXXX routine or
			// by setting property directly
			if(this.isNSApplet)
			{
				vol = this.mp.getSettings().getVolume();
			}
			else
			{
				vol = this.mp.settings.volume;
			}
		}
	}
	catch(e)
	{
	}
	return vol;
}
WindowsMediaPlayer.prototype.setVolume = function(level)
{
	try
	{
		if(level > 0 && level <= 100 && level != "")
		{
			var mp64Level = (parseInt(level) > 40) ? 25*(parseInt(level))-2500 : (100*(parseInt(level))-6000);
			if(parseInt(level) == 0)
			{
				mp64Level = -10000;
			}
			if(mp64Level > 0)
			{
				mp64Level = 0;
			}
			if(this.isNSPlugin)
			{
 				this.mp.SetVolume(mp64Level);
			}
			else if (this.isWMP64)
			{
				this.mp.Volume = mp64Level;
			}
			else
			{
				// If using v7+ interface set through applet's setXXX routine or
				// by setting property directly
				if(this.isNSApplet)
				{
					this.mp.getSettings().setVolume(level);
				}
				else
				{
					this.mp.settings.volume = level;
				}
			}
		}
	}
	catch(e)
	{
	}
}
WindowsMediaPlayer.prototype.getErrorDescription = function(){
	var desc = "";
	if(this.isNSPlugin)
	{
 		desc = this.mp.GetErrorDescription();
	}
	else if (this.isWMP64)
	{
		desc = this.mp.ErrorDescription;
	}
	else
	{
		// If using v7+ interface set through applet's setXXX routine or
		// by setting property directly
		if(this.isNSApplet)
		{
			if(this.mp.getControls().isAvailable('stop'))
			{
				this.mp.getControls().stop();
			}
			if(this.mp.getControls().isAvailable('currentPosition'))
			{
				this.mp.getControls().setCurrentPosition(0);
			}
		}
		else
		{
			if(this.mp.controls.isAvailable('stop'))
			{
				this.mp.controls.stop();
			}
			if(this.mp.controls.isAvailable('currentPosition'))
			{
				this.mp.controls.currentPosition = 0;
			}
		}
	}
}
// PLAYBACK
WindowsMediaPlayer.prototype.stop = function()
{
	if(this.isNSPlugin)
	{
 		if(this.mp.GetPlayState() != 0)
		{
 				this.mp.Stop();
 				this.mp.SetCurrentPosition(0);
		}
	}
	else if (this.isWMP64)
	{
		if(this.mp.PlayState != 0)
		{
 				//alert("WMP64 Stop");
 				this.mp.Stop();
 				this.mp.CurrentPosition = 0;
		}
	}
	else
	{
		// If using v7+ interface set through applet's setXXX routine or
		// by setting property directly
		if(this.isNSApplet)
		{
			if(this.mp.getControls().isAvailable('stop'))
			{
				this.mp.getControls().stop();
			}
			if(this.mp.getControls().isAvailable('currentPosition'))
			{
				this.mp.getControls().setCurrentPosition(0);
			}
		}
		else
		{
			if(this.mp.controls.isAvailable('stop'))
			{
				this.mp.controls.stop();
			}
			if(this.mp.controls.isAvailable('currentPosition'))
			{
				this.mp.controls.currentPosition = 0;
			}
		}
	}
}
WindowsMediaPlayer.prototype.pause = function()
{
	if(this.playState == 2)
	{
		this.play();
		return;
	}
	if(this.isNSPlugin)
	{
 		if(this.mp.GetPlayState() == 2)
 		{
 			this.mp.Pause();
 		}
	}
	else if (this.isWMP64)
	{
		if(this.mp.PlayState == 2)
		{
 			this.mp.Pause();
 		}
	}
	else
	{
		// If using v7+ interface set through applet's setXXX routine or
		// by setting property directly
		if(this.isNSApplet)
		{
			if(this.mp.getControls().isAvailable('pause'))
			{
				this.mp.getControls().pause();
			}
			else
			{
				this.mp.controls.stop();
			}
		}
		else
		{
			if(this.mp.controls.isAvailable('pause'))
			{
				this.mp.controls.pause();
			}
			else
			{
				this.mp.controls.stop();
			}
		}
	}
}
WindowsMediaPlayer.prototype.play = function()
{
	try
	{
		if(this.playState == 3)
		{
			this.pause();
			return;
		}
		if(this.isNSPlugin)
		{
 			if(this.mp.GetPlayState() != 2)
 			{
 				this.mp.Play();
 			}
		}
		else if (this.isWMP64)
		{
			if(this.mp.PlayState != 2)
			{
 				this.mp.Play();
 			}
		}
		else
		{
			// If using v7+ interface set through applet's setXXX routine or
			// by setting property directly
			if(this.isNSApplet)
			{
				if(this.mp.getControls().isAvailable('play'))
				{
					this.mp.getControls().play();
				}
			}
			else if(this.mp.controls != null)
			{
				if(this.mp.controls.isAvailable('play'))
				{
					this.mp.controls.play();
				}
			}
		}
		
		if(this.useCallbacks && this.eventTimer == null)
		{
			this.eventTimer = setTimeout(this.id+".checkState()", this.eventUpdateInterval);
		}
	}
	catch(e)
	{
	}
}
///CALLBACKS
WindowsMediaPlayer.prototype.getBufferingProgress = function() {
	var x = 0;
	if(this.isNSPlugin)
	{
 		x = this.mp.GetBufferingProgress();
	}
	else if (this.isWMP64)
	{
		x = this.mp.BufferingProgress;
	}
	else
	{
		if(this.isNSApplet)
		{
			if(this.mp.network.getBufferingProgress() >= 0)
			{
				x = this.mp.network.getBufferingProgress();
			}
			else if(this.mp.network.getDownloadProgress() >= 0)
			{
				x = this.mp.network.getDownloadProgress();
			}
		}
		else
		{
			if(this.mp.network.bufferingProgress >= 0)
			{
				x = this.mp.network.bufferingProgress;
			}
			else if(this.mp.network.downloadProgress >= 0)
			{
				x = this.mp.network.downloadProgress;
			}
		}
	}
	return x;
}
WindowsMediaPlayer.prototype.error = function()
{
	var errorMsg = this.getErrorDescription();
	//alert("Windows Media Player: " + errorMsg);
}
WindowsMediaPlayer.prototype.scriptCommand = function(type, data)
{
	//alert("WMP: ScriptCommand " + type + " " + data);
	if(this.scriptChange != null)
	{
		this.scriptChange(type, data);
	}
}