/**

	ProtoTube v1b BETA 27.04.2009

	Copyright (c) 2008 Filippo Buratti; info [at] cssrevolt.com [dot] com; http://www.filippoburatti.net/



	Permission is hereby granted, free of charge, to any person obtaining a copy

	of this software and associated documentation files (the "Software"), to deal

	in the Software without restriction, including without limitation the rights

	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

	copies of the Software, and to permit persons to whom the Software is

	furnished to do so, subject to the following conditions:



	The above copyright notice and this permission notice shall be included in

	all copies or substantial portions of the Software.



	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

	THE SOFTWARE.

*/

var ProtoTube = Class.create({

	

	initialize: function(element, options) {

		

		this.element 	= $(element);

		var url 		= this.element.readAttribute('href');

		this.videoID 	=	url.replace(/^[^v]+v.(.{11}).*/,"$1");

		this.body = $$('body')[0];

		this.html = $$('html')[0];

		

		Prototype.Browser.IE6 = Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf("MSIE")+5)) == 6;

		

		this.options 	= {	

			overlay: true, // if false embed the video player directly		

			// overlay and preview options

			duration: 0.5, // overlay appare/fade effect

			opacity: 0.8,  // overlay opacity

			imagePreview: true, // show video thumb

			imageID: 1, // 0,1,2,3			

			// player configuration

			playerWidth: 425,

			playerHeight: 350,

			fs: 1, // fullscreen button

			autoplay:0,

			loop:0,

			hd:0, // High definition

			showinfo:0, // show video title and rating before start 

			rel:1, // show related video at end			

			// You Tube url

			youtubeVideoUrl: 'http://www.youtube.com/v/',

			youtubeImageUrl: 'http://img.youtube.com/vi/'

		};

		Object.extend(this.options, options || {});

			

		this.options.overlay ? this.setupPreviewOverlay() : this.directEmbed();	

		

	},

	

	setupPreviewOverlay: function() {

 		 	if (this.options.imagePreview){ this.getImagePreview(); }		

			this.addOverlayMarkup();

			Event.observe(this.element, "click", this.showProtoTube.bindAsEventListener(this));		

			Event.observe(this.overlay, 'click', this.hideProtoTube.bindAsEventListener(this));

			Event.observe(this.ProtoTube, 'click',  function(event) { Event.stop(event) });

	},

	

	directEmbed: function() {			

		this.getVideoEmbed(this.element);	

	},

	

	addOverlayMarkup: function(){

		this.ProtoTube = new Element('div', {className:'prototube'});

		this.wrapper = new Element('div').update('<p>Loading video from You Tube...</p>');

		this.ProtoTube.insert(this.wrapper);

		this.overlay = new Element('div', {className:'overlay'});

		this.overlay.insert(this.ProtoTube);

		this.body.insert(this.overlay.hide());

	},



	showProtoTube: function (event) {

		Event.stop(event);

		this.toggleTroubleElements('hidden');

		this.getVideoEmbed(this.wrapper);

		this.ProtoTube.setStyle({ width: this.options.playerWidth+"px", height: this.options.playerHeight+"px", marginTop: "-"+ this.options.playerHeight/2 +"px", marginLeft: "-"+ this.options.playerWidth/2 +"px" });	

		if (Prototype.Browser.IE6) { this.prepareIE('100%', 'hidden'); }

		new Effect.Appear(this.overlay, { duration: this.options.duration,  from: 0.0, to: this.options.opacity });

	},

	

	hideProtoTube: function() {	

		this.ProtoTube.update(this.wrapper);

		new Effect.Fade(

				this.overlay, { 

					duration: this.options.duration, 

					afterFinish:function() { 

						this.toggleTroubleElements('visible');

						if (Prototype.Browser.IE6) { this.prepareIE("auto", "auto"); }

					}.bind(this)

				});

		},

	

	getVideoEmbed: function(wrapper) {

		var wrapperID = wrapper.identify();

		var flashvars = {

			fs: this.options.fs,

			autoplay: this.options.autoplay,

			loop: this.options.loop,

			hd: this.options.hd,

			showinfo: this.options.showinfo,

			rel: this.options.rel

	

		};

    	var params = { 

			allowScriptAccess: "always",

			allowFullScreen: true,

			menu: false

		};

    	var atts = { };

    	swfobject.embedSWF(this.options.youtubeVideoUrl+this.videoID, wrapperID, this.options.playerWidth, this.options.playerHeight, "9", null, flashvars, params, atts);

	},

	

	getImagePreview: function() {	

		this.image =  new Image();	

		this.element.update(this.image);

		this.image.src  = this.options.youtubeImageUrl + this.videoID + "/" + this.options.imageID + ".jpg";				

	},

	

	toggleTroubleElements: function(visibility) {

		$$('select', 'object', 'embed').each(function(node) { node.style.visibility = visibility });

	},

	

	prepareIE: function(height, overflow) {

		this.body.setStyle({ height: height, overflow: overflow });	

		this.html.setStyle({ height: height, overflow: overflow }); 

	}



});