/**
 * Dex DHTML multimedia player
 * @package CMS
 * @author Jonathan Dortheimer
 * @copyright Dex technologies L.T.D
 * @version 1.0
 */
dex.player = function(container_id, media_url, link_url, sandbox_url) {

	this.jv = false;
	this.autostart = false;

	this.set_media_url = function(media_url){
		this.media_url	= media_url;
		this.set_ext(this.media_url.substring(this.media_url.lastIndexOf('.')));
	};

	this.set_link_url = function(link_url) {
		this.link_url = link_url;
	};

	this.set_type = function(type){
		switch (type){
			case 'application/x-shockwave-flash':	return this.set_ext( 'swf');
			case 'video/quicktime':					return this.set_ext( 'mov');
			case 'video/x-msvideo':					return this.set_ext( 'mov');
			case 'audio/midi':						return this.set_ext( 'mid');
			case 'audio/basic':						return this.set_ext( 'au');
			case 'video/mpeg':						return this.set_ext( 'mpg');
			case 'video/x-ms-wm':					return this.set_ext( 'wm');
			case 'video/x-ms-wma':					return this.set_ext( 'wma');
			case 'video/x-ms-wmv':					return this.set_ext( 'wmv');
			case 'video/x-ms-wvx':					return this.set_ext( 'wvx');
			case 'video/x-ms-wmv':					return this.set_ext( 'wmv');
			case 'video/x-flv':						return this.set_ext( 'flv');
			case 'image/jpeg':						return this.set_ext( 'jpg');
			case 'image/gif':						return this.set_ext( 'gif');
			case 'image/png':						return this.set_ext( 'png');
		}
	};
	this.set_autostart = function(value){
		this.autostart = value ? true : false;
	};
	this.set_ext = function(ext){
		ext = ext.replace('.','');
		this.media_ext = ext;
	};
	this.set_logo = function(url) {
		this.logo = url
	};

	this.set_volume = function(volume) {
		this.volume = parseInt(volume);
	};

	this.set_preview_image = function(url) {
		this.set_preview_image = url
	};

	this.set_width = function(width) {
		this.width = width;
	};
	
	this.set_height = function(height) {
		this.height = height;
	};

	this.fix_width = function() {
		var height, width, img, img_height, img_width;

		width	= parseInt(this.get_width(this.container)*0.95);

		if (this.container.style.height)
			height = parseInt(parseInt(this.container.style.height)*0.95);
		else
			height = parseInt(width*0.61);

		// Sometime we have an image in the div, so we can get it's size from there.
		img = this.container.getElementsByTagName('IMG');
		if (img && img[0]) {
			var image =img[0];
			img_height = image.height;
			img_width = image.width;
			if (img_width<width){
				width = img_width;
				height = img_height;
			}
			// keep proportions
			else {
				height = width*(img_height/img_width);
			}
		}
		this.height = height;
		this.width = width;
	};
//	this.fix_width = function() {
//
//		var img, height, width, img_;
//
//		// Sometime we have an image in the div, so we can get it's size from there.
//		if (img = this.container.getElementsByTagName('IMG')) {
//			img_height = parseInt(this.get_height(this.container)*0.95);
//			img_width = parseInt(this.get_width(this.container)*0.95);
//		}
//
//		this.height = parseInt(this.get_height(this.container)*0.95);
//		this.width = parseInt(this.get_width(this.container)*0.95);
//		console.log(this.height+' '+this.width);
//	};

	this.set_container = function(container_id){
		this.container_id	= container_id;
		this.player_id		= container_id+'_player';
		this.container		= document.getElementById(container_id);
		this.container.player = this;
	};

	this.get_width = function(obj){
		var width=0;
		for (i=0;!width && obj;i++){
			if (obj.offsetWidth){
				width=parseInt(obj.offsetWidth);
			}else if (obj.style && obj.style.width){
				width=parseInt(obj.style.width);
			}else
				obj=obj.parentNode
		}
		return Math.floor(width);
	};

	this.set_sandbox = function(sandbox_url){
		this.sandbox_url = sandbox_url;
	};
	this.render_sandbox = function() {
		var htmlString= '<iframe marginwidth="0" marginheight="0" scrolling="no" frameborder="0" ';
		htmlString+= 'style="border:0" id="'+this.player_id+'_frame" name="'+this.player_id+'_frame" ';
		htmlString+= 'width="'+this.width+'"  height="'+this.height+'" ';
		htmlString+= 'src="about:blank">';
		htmlString+= '</iframe>';
		htmlString+= '<form style="height:1px" action= "'+this.sandbox_url+'/html/sandbox.php" target="'+this.player_id+'_frame" id="'+this.player_id+'_form">';
		htmlString+= '<input type="hidden" name="width" value="'+this.width+'" />';
		htmlString+= '<input type="hidden" name="thumb" value="'+this.thumb+'" />';
		htmlString+= '<input type="hidden" name="height" value="'+this.height+'" />';
		htmlString+= '<input type="hidden" name="media_ext" value="'+this.media_ext+'" />';
		htmlString+= '<input type="hidden" name="url" value="'+this.media_url+'" />';
		htmlString+= '<input type="hidden" name="autostart" value="'+this.autostart+'" />';
		htmlString+= '</form>';
		this.insert_html(htmlString);
	};
	this.guess_player = function(){
		var os = dex.utils.ua.os();
		
		var mplayers = new Array(0,-1,-1,-1,-1,-1,-1,-1);
		var playerSupport = new Array();
		//browser
		playerSupport[1] = new Array('jpeg','jpg','gif','tif','tiff','png','bmp');
		//flash
		playerSupport[2] = new Array('swf');
		//quicktime
		playerSupport[3] = new Array('mov','qt','qtm','avi','vfw','wav','bwf','aif','aiff','au','mid','midi','smf','mpeg','mpg','m1s','m1v','m1a','mpm','mpv','mpa','mp4','mpg4','swa','wmv');
		//media player
		playerSupport[4] = new Array('asf','asx','wpl','wm','wmx','wmd','wmz','wma','wax','wmv','wvx','avi','wav','mpeg','mpg','mpe','m1v','mp2','mp2v','mpa','mid','midi','rmi','au','snd');
		//real player
		playerSupport[5] = new Array('rm','rt','ra','ram','rp','rv','avi','mpeg','mpg','m1s','m1v','m1a','mpm','mpv','mpa','mp4','mpg4','wav','mid','midi','mov','qt');
		//flv player
		playerSupport[6] = new Array('flv');
		//swf mp3 player
		playerSupport[7] = new Array('mp3');

		playerSupport[8] = new Array('flv');


		var browserSupport = new Array();
		browserSupport[1]= browserSupport[2] = browserSupport[6] = browserSupport[7] = browserSupport[8] = true;
		browserSupport[3] = true;//(pluginlist.indexOf("QuickTime")!=-1);
		browserSupport[4] = true;// (pluginlist.indexOf("MediaPlayer")!=-1);
		browserSupport[5] = true;// (pluginlist.indexOf("RealPlayer")!=-1 || pluginlist.indexOf("RealVideo")!=-1);

    	//loop on installed plugins
		for (i=1;i<8;i++){
			//loop on plugin ext
			for (j=0;playerSupport[i][j];j++){
				if (playerSupport[i][j]==this.media_ext)
					mplayers[i]=1;
			}
		}
		//set windows
		if (this.media_url.indexOf('youtube.com')!=-1){
			return 8;
		}
		else if (os == 'Windows' && mplayers[4]>0)
			return 4;
		else if (os == 'Windows' && mplayers[3]>0)
			return 3;
		else if (os == 'Mac' && mplayers[3]>0)
			return 3;
		else if (mplayers[5]>0)
			return 5;
		else{
			for (i=1;i<8;i++){
				if (mplayers[i]>0 && browserSupport[i]){
					return i;
				}
			}
		}
		return false;
	};

	this.render = function(media_url, ext, link_url) {
		
		if (media_url)
			this.set_media_url(media_url);
		if (ext)
			this.set_ext(ext);
		if (link_url)
			this.set_link_url(link_url);
		this.fix_width();
		var html = '';
		var playerid = this.guess_player();
		switch (playerid){
			case 1:
				this.render_image();
				break;
			case 2:
				if (this.sandbox_url){
					this.render_sandbox();
				}
				else {
					this.render_flash();
				}
				break;
			case 3:
				this.render_quicktime();
				break;
			case 4:
				this.render_media_player();
				break;
			case 5:
				break;
			case 6:
				this.render_flv_player();
				break;
			case 7:
				this.render_mp3_player();
				break;
			case 8:
				this.render_youtube_player();
				break;
			default:
				this.insert_html('<a href="'+this.media_url+'">'+this.media_ext+' file</a>');
				break;
		}
	};
	this.insert_html = function(html) {

		// This is an IE hack.
		// remove elements
		while ( this.container.hasChildNodes() ){
			this.container.removeChild( this.container.firstChild );
		}

		// append new element
		var newdiv = document.createElement("div");
		newdiv.innerHTML = html;

		this.container.appendChild(newdiv);
		
		if (this.sandbox_url && document.getElementById(this.player_id+'_form')){
			document.getElementById(this.player_id+'_form').submit();
		}
	};

	this.render_image = function (){
		var htmlString;
		//windows media
		if (!this.link_url) {
			htmlString= '<a href="'+this.media_url+'">';
		}
		else {
			htmlString= '<a href="'+this.link_url+'">';
		}
		htmlString+= '<img id="'+this.player_id+'" ';
//		if (this.width)
//			htmlString+= 'width="'+this.width+'" ';
//		if (this.height)
//			htmlString+= 'height="'+this.height+'" ';

		if (this.width || this.height){
			htmlString+= 'onload="dex.player.fix_width_onload(this,'+this.width+','+this.height+')" style="visibility:hidden" ';
		}
		htmlString+= 'src="'+this.media_url+'" alt="" /></a>';
		this.insert_html(htmlString)
	};
	
	this.render_media_player = function (){
		var os = dex.utils.ua.os();
		var htmlString;
		if (YAHOO.env.ua.ie>0 && os == 'Windows'){
			htmlString = '<OBJECT ';
			htmlString+= 'width="'+this.width+'" height="'+this.height+'" ';
			htmlString+= 'CLASSID="CLSID:6BF52A52-394A-11d3-B153-00C04F79FAA6" ';
			htmlString+= 'type="application/x-oleobject">';
			htmlString+= '<PARAM NAME="URL" VALUE="'+this.media_url+'">';
			htmlString+= '<param name="ShowControls" value="true" />';
			htmlString+= '<param name="ShowDisplay" value="0" />';
			htmlString+= '<param name="DefaultFrame" value="Slide" />';
			htmlString+= '<param name="stretchToFit" value="true" />';
			htmlString+= '<param name="Autostart" value="'+(this.autostart?"true":"false")+'" /></object>';
			htmlString+= '</OBJECT>';
		}
		else{
			htmlString='<embed id="'+this.player_id+'" width="'+this.width+'" height="'+this.height+'" src="'+this.media_url+'" ';
			htmlString+='loop="0" type="application/x-mplayer2" pluginspage="http://www.microsoft.com/Windows/MediaPlayer/download/default.asp" ';
			htmlString+='showcontrols="1" showdisplay="0" showstatusbar="1" autostart="'+(this.autostart?"true":"false")+'" > </embed>';
		}
		this.insert_html(htmlString);
	};

	this.render_flash = function () {
		var s1 = new SWFObject(this.media_url,this.player_id,this.width,this.height,'9');
		s1.addParam('allowfullscreen','false');
		s1.addParam('allowscriptaccess','never');
		s1.addParam('quality','false');
		s1.addParam('wmode','opaque');
		s1.addParam('wmode','transparent');
		s1.addParam('flashvars','file='+this.get_flv_link()+'&skin=/player/overlay.swf&frontcolor=ffffff&lightcolor=cc9900&controlbar=over&stretching=fill');
		s1.write(this.container);
	};

	this.get_flv_link = function() {
		var url = 'file='+this.media_url+'&autostart='+(this.autostart?"true":"false");
		if (this.logo) {
			url+='&image='+this.logo;
		}
		if (this.preview_image) {
			url+='&logo='+this.preview_image;
		}
		if (this.volume) {
			url+='&volume='+this.volume;
		}
		return url;
	};
	this.render_flv_player = function() {
		var s1 = new SWFObject('/player/player.swf',this.player_id,this.width,this.height,'9');
		s1.addParam('allowfullscreen','false');
		s1.addParam('allowscriptaccess','never');
		s1.addParam('wmode','opaque');
		s1.addVariable('plugins','');
		//s1.addParam('flashvars','&file='+this.get_flv_link()+'&frontcolor=ffffff&lightcolor=cc9900&skin=http://www.longtailvideo.com/jw/upload/overlay.swf&controlbar=over&autostart=true');
		s1.addParam('flashvars',this.get_flv_link()+'&skin=/player/overlay.swf&frontcolor=ffffff&lightcolor=cc9900&controlbar=over&stretching=fill');
		s1.write(this.container);
	};
	this.render_quicktime = function() {
		var htmlString = '<embed id="'+this.player_id+'" src="'+this.media_url+'"  width="'+this.width+'"  height="'+this.height+'"  type="video/quicktime" pluginspage="http://www.apple.com/quicktime/download/" ';
		htmlString+= (this.autostart)? 'autoplay="true"':'autoplay="false"';
		htmlString+='scale"="Aspect" ';
		htmlString+='controller="false" ';
		htmlString+='EnableJavaSript="true" ';
		htmlString+='stretchToFit"="false" ';
		htmlString+='/>';
		this.insert_html(htmlString)
	};

	this.render_mp3_list_player = function() {
		this.fix_width();
		var s1 = new SWFObject('/player/player.swf',this.player_id,this.width,'220','9');
		s1.addParam('allowfullscreen','true');
		s1.addParam('allowscriptaccess','always');
		s1.addParam('wmode','opaque');
		s1.addParam('flashvars','file='+this.media_url+'&height=20&playlistsize=200&playlist=bottom'+(this.autostart?'&autostart=true':''));
		s1.write(this.container);
	};
	this.render_mp3_player = function() {
		var s1 = new SWFObject('/player/player.swf',this.player_id,this.width,'20','9');
		s1.addParam('allowfullscreen','true');
		s1.addParam('allowscriptaccess','always');
		s1.addParam('wmode','opaque');
		s1.addParam('flashvars','file='+this.media_url+'&height=20'+(this.autostart?'&autostart=true':''));
		s1.write(this.container);
	};
        /*
	this.render_youtube_player = function() {
		var s1 = new SWFObject(this.media_url+(this.autostart?'&autoplay=1':''),this.player_id,this.width,this.height,'9');
		s1.addParam('allowfullscreen','true');
		s1.addParam('allowscriptaccess','always');
		s1.addParam('wmode','transparent');
		s1.write(this.container);
	};
        */
        this.render_youtube_player = function() {
		var htmlString = '<iframe id="'+this.player_id+'" src="'+this.media_url+'"  width="'+this.width+'"  height="'+this.height+'" frameborder="0" >';				
		htmlString+='</iframe>';
		this.insert_html(htmlString)
	};
	
	this.preview = function() {
		if (this.jv)
			return false;
		this.jv = new SWFObject('/player/player.swf',this.player_id,this.width,this.height,'9');
		this.jv.addParam('allowfullscreen','true');
		this.jv.addParam('allowscriptaccess','always');
		this.jv.addParam('wmode','transparent');
		this.jv.addVariable('file',this.media_url);
		this.jv.addVariable('plugins','');
		this.jv.addVariable('bufferlength','0');
		this.jv.addVariable('controlbar','none');
		this.jv.addVariable('dock','false');
		this.jv.addVariable('icons','false');
		this.jv.addVariable('repeat','always');
		this.jv.addVariable('autostart','true');
		this.jv.addVariable('stretching','exactfit');
		this.jv.write(this.container);
		return this.jv;
	}
	
	this.preview_hide = function() {
		this.jv = false;
		this.container.innerHTML = '';
	}
	
	var os = dex.utils.ua.os();
	// Add vb script to check on plugins
	if (YAHOO.env.ua.ie>0 && os == 'Windows'){
		if (!document.getElementById('vbscript_for_plugins')){
			var script =  document.createElement('script');
			script.language = "VBscript";
			script.id = 'vbscript_for_plugins';
			var script_str = 'Function detect()\n';
			script_str+= 'detectableWithVB = False\n';
			script_str+= 'If ScriptEngineMajorVersion >= 2 then\n';
			script_str+= 'detect= True\n';
			script_str+= 'Else\n';
			script_str+= 'detect= False\n';
			script_str+= 'End If\n';
			script_str+= 'End function\n';

			script_str+= 'Function detectActiveXControl(activeXControlName)\n';
			script_str+= 'on error resume next\n';
			script_str+= 'detectActiveXControl = False\n';
			script_str+= 'detectActiveXControl = IsObject(CreateObject(activeXControlName))\n';
			script_str+= 'End Function\n';

			script_str+= 'Function detectQuickTimeActiveXControl()\n';
			script_str+= 'on error resume next\n';
			script_str+= 'detectQuickTimeActiveXControl = False\n';
			script_str+= 'hasQuickTimeChecker = false\n';
			script_str+= 'Set hasQuickTimeChecker = CreateObject("QuickTimeCheckObject.QuickTimeCheck.1")\n';
			script_str+= 'If IsObject(hasQuickTimeChecker) Then\n';
			script_str+= 'If hasQuickTimeChecker.IsQuickTimeAvailable(0) Then\n';
			script_str+= 'detectQuickTimeActiveXControl = True\n';
			script_str+= 'End If\n';
			script_str+= 'End If\n';
			script_str+= 'End Function\n';
			script.innerHtml = script_str;
			document.getElementById(container_id).appendChild(script);
		}
	};
	this.set_media_url(media_url);
	this.set_container(container_id);

//	dex.events.subscribe('page_refresh', function() {
//		//console.log(this);
//		this.render();
//	}, this);
};

dex.player.fix_width_onload = function(image,width, height){
	if (image.width > width){

		image.height = (image.height*width)/image.width;
		image.width = width;
	}
	image.style.visibility = 'visible';
};
YAHOO.register("dex.player", dex.player, {version: "1", build: "1"});