/**

 * 

 * @return

 */

function HTML5Video(defaults)

{

	//debugging variables.

	this.debugging = true;

	this.debuggingElementId;

	

	//keys used for detecting the different platforms.

	this.osKeyBlackberry = ['blackberry'];

	this.osKeyAndroid = ['android'];

	this.osKeyiOS = ['webos','iphone','ipod','ipad'];

	

	//in case you hate a particular platform

	this.detectIOS = true;

	this.detectBlackberry = true;

	this.detectAndroid = true;

	

	//this property can be toggled to use flash and HTML5 only as a fallback.

	this.useFlashFirst = false;

	

	//you can set the flash requirements as well if you are using the Adobe flash detection plugin.

	this.flashMajorVersion = 8;

	this.flashMinorVersion = 0;

	this.flashRequiredRevision = 0;

	this.hasFlash = false;

	

	//this is a required field. you must specificy the ID of the DIV or element that you want to inject the video into

	this.outputElementId;

	

	//these are all required properties for the mobile devices

	this.mobileVideoObject;

	this.mobileH264;

	this.mobileAdditionalVideos = {};

	this.mobilePosterImage;

	this.androidPosterImage;

	

	//these are the required properties for serving to a desktop platform

	this.desktopVideoObject;

	this.desktopH264;

	this.desktopAdditionalVideos = {};

	this.desktopFlashObject;

	this.desktopPosterImage;

	

	if(defaults != null)

	{

		this.init(defaults);

	}

	

	/**

	 * initializes the properties passed in and checks for flash.

	 */

	this.init = function(defaults)

	{

		for(var i in defaults)

		{

			this[i] = defaults[i];

		}

		

		try 

		{

			this.hasFlash = DetectFlashVer(this.flashMajorVersion, this.flashMinorVersion, this.flashRequiredRevision);

		}

		catch(e) 

		{

			this.hasFlash = false;

		}

	}

	

	/**

	 * Helper function to find the element by the id specified. Cross-browser compatible.

	 */

	this.getElementById = function(id)

	{

		var object = null;

		if (document.layers) {

			object = document.layers[id];

		} 

		else if (document.all) {

			object = document.all[id];

		}

		else if (document.getElementById) {

			object = document.getElementById(id);

		}

		return object;

	}

	

	/**

	 * Runs the actual detection and injects the proper video. 

	 */

	this.detect = function()

	{

		var result = '';

		var element;

		var isMobile = false;

		

		if(this.detectAndroid)

		{

			if(this.detectOS(this.osKeyAndroid))

			{

				this.debug('HTML5Video::detect() - detectAndroid');

				result = this.onAndroidCallback();

				isMobile = true;

			}

		}

		if(this.detectBlackberry)

		{

			if(this.detectOS(this.osKeyBlackberry))

			{

				this.debug('HTML5Video::detect() - detectBlackberry');

				result = this.onBlackberryCallback();

				isMobile = true;

			}

		}

		if(this.detectIOS)

		{

			if(this.detectOS(this.osKeyiOS))

			{

				this.debug('HTML5Video::detect() - detectIOS');

				result = this.oniOSCallback();

				isMobile = true;

			}

		}

		

		if(!isMobile)

		{

			this.debug('HTML5Video::detect() - default to desktop');

			result += this.onDesktopCallback();

		}

		

		if(this.outputElementId != '')

		{

			element = this.getElementById(this.outputElementId);

			if(element != null)

			{

				this.debug('HTML5Video::detect() - outputElementId found. injecting.');

				element.innerHTML = result;

			}

			else

			{

				this.debug('HTML5Video::detect() - outputElementId not found. injecting into body.');

				document.write(result);

			}

		}

		else

		{

			this.debug('HTML5Video::detect() - outputElementId not provided. injecting into body.');

			document.write(result);

		}

	}

	

	/**

	 * Callback for when android is found.

	 */

	this.onAndroidCallback = function()

	{

		this.debug('HTML5Video::onAndroidCallback()');

		var output = '';

		

		this.mobileVideoObject.params['onclick'] = "this.play();";

		this.mobileVideoObject.params['poster'] = this.androidPosterImage.src;

		this.mobileVideoObject.params['src'] = this.mobileH264.src;

		

		this.onVideoEndCallback = this.outputFallbackImage;

		output = this.outputVideo(this.mobileVideoObject, this.mobileH264, this.mobileAdditionalVideos, this.mobilePosterImage);

		

		var videos = document.getElementsByTagName('video') || [];

		for (var i = 0; i < videos.length; i++) {

			videos[i].addEventListener('click', function(videoNode) {

				return function() {

					videoNode.play();

				};

			}(videos[i]));

		}

		

		return output;

	}

	

	/**

	 * Callback for when blackberry is found.

	 */

	this.onBlackberryCallback = function()

	{

		this.debug('HTML5Video::onBlackberryCallback()');

		var output = '';

		

		this.mobileVideoObject.params['poster'] = this.mobilePosterImage.src;



		this.onVideoEndCallback = this.outputFallbackImage;

		output = this.outputVideo(this.mobileVideoObject, this.mobileH264, this.mobileAdditionalVideos, this.mobilePosterImage);

		

		return output;

	}

	

	/**

	 * Callback for when iphone/ipod/ipad/ios is found.

	 */

	this.oniOSCallback = function()

	{

		this.debug('HTML5Video::oniOSCallback()');

		var output = '';

		

		this.mobileVideoObject.params['poster'] = this.mobilePosterImage.src;



		this.onVideoEndCallback = this.outputFallbackImage;

		output = this.outputVideo(this.mobileVideoObject, this.mobileH264, this.mobileAdditionalVideos, this.mobilePosterImage);

		

		return output;

	}

	

	/**

	 * Default callback when none of the above is found. Serves as a desktop.

	 */

	this.onDesktopCallback = function()

	{

		this.debug('HTML5Video::onDesktopCallback()');

		var output = '';

		this.mobileVideoObject.params['poster'] = this.desktopPosterImage.src;

		

		if(this.hasFlash && this.useFlashFirst)

		{

			this.debug('HTML5Video::onDesktopCallback() - has flash');

			this.onFlashEndCallback = this.outputVideo;

			this.onVideoEndCallback = this.outputFallbackImage;

			output = this.outputFlash(this.desktopVideoObject, this.desktopH264, this.desktopAdditionalVideos, this.desktopPosterImage, this.desktopFlashObject);

		}

		else

		{

			this.debug('HTML5Video::onDesktopCallback() - no flash');

			this.onVideoEndCallback = this.outputFlash;

			this.onFlashEndCallback = this.outputFallbackImage;

			output = this.outputVideo(this.desktopVideoObject, this.desktopH264, this.desktopAdditionalVideos, this.desktopPosterImage, this.desktopFlashObject);

		}

		

		return output;

	}

	

	/**

	 * Debugging method that looks for firebug console, or optionally injects into a container on the page.

	 */

	this.debug = function(message)

	{

		if (typeof console == "undefined" || typeof console.log == "undefined") var console = { log: function() {} }; 

	

		if(this.debugging == true)

		{

			if(typeof console != "undefined")

			{

				console.log(message);

			}

			if(this.debuggingElementId)

			{

				var element = this.getElementById(this.debuggingElementId);

				if(element != null)

				{

					element.innerHTML += message + '<br />\n';

				}

				else

				{

					document.write(message + '<br />\n');

				}

			}

		}

	}

	

	/**

	 * Detects the OS based on the OS key passed in. Uses the userAgent of the browser.

	 */

	this.detectOS = function(device)

	{

		var uagent = navigator.userAgent.toLowerCase();

		this.debug('HTML5Video::detectOS() - ' + uagent);

		for(var i in device)

		{

			this.debug('HTML5Video::detectOS() - ' + device[i]);

			if (uagent.search(device[i]) > -1)

			{

				return true;

			}

		}

		return false;

	}

	

	/**

	 * Outputs the HTML5 video.

	 */

	this.outputVideo = function(srcVideoObject, primaryVideoAsset, additionalVideos, fallbackImage, flashObject)

	{

		this.debug('HTML5Video::outputVideo()');

		var outputText = '';

		

		outputText += '<video width="' + srcVideoObject.width + '" height="' + srcVideoObject.height + '" ';

		

		for(var i in srcVideoObject.params)

		{

			outputText += ' ' + i + '="' + srcVideoObject.params[i] + '"';

		}

		

		outputText += '>';

		

		outputText += '<source src="' + primaryVideoAsset.src + '" type="' + primaryVideoAsset.type + '" />';

		

		for(var n in additionalVideos)

		{

			outputText += '<source src="' + additionalVideos[n].src + '" type="' + additionalVideos[n].type + '" />';

		}

		

		outputText += this.onVideoEndCallback(srcVideoObject, primaryVideoAsset, additionalVideos, fallbackImage, flashObject)

		

		outputText += '</video>';

		

		return outputText;

	}

	

	/**

	 * Call for adding additional code to inject into video element. example: params and fallback image

	 * @return string

	 */

	this.onVideoEndCallback = this.outputFallbackImage;

	

	/**

	 * Outputs the flash html and calls the callback <code>onFlashEndCallback</code> before closing the flash tag.

	 * @return string

	 */

	this.outputFlash = function(srcVideoObject, primaryVideoAsset, additionalVideos, fallbackImage, flashObject)

	{

		this.debug('HTML5Video::outputFlash()');

		var outputText = '';

		

		outputText += '<object width="' + flashObject.width + '" height="' + flashObject.height + '" type="application/x-shockwave-flash" data="' + flashObject.src + '">';

		

		if(flashObject.params['movie'] == null)

		{

			outputText += '<param name="movie" value="' + flashObject.src + '" />';

		}

		

		for(var i in flashObject.params)

		{

			outputText += '<param name="' + i + '" value="' + flashObject.params[i] + '" />';

		}

		

		outputText += this.onFlashEndCallback(srcVideoObject, primaryVideoAsset, additionalVideos, fallbackImage, flashObject)

		

		outputText += '</object>';

		

		return outputText;

	}

	

	/**

	 * Call for adding additional code to inject into flash object. example: params and fallback image

	 * @return string

	 */

	this.onFlashEndCallback = this.outputFallbackImage;



	/**

	 * Outputs the fallback image html.

	 * @return string

	 */

	this.outputFallbackImage = function(srcVideoObject, primaryVideoAsset, additionalVideos, fallbackImage, flashObject)

	{

		this.debug('HTML5Video::outputFallbackImage()');

		

		var outputText = '<img src="' + fallbackImage.src + '" width="' + fallbackImage.width + '" height="' + fallbackImage.height + '" title="' + fallbackImage.title + '" alt="' + fallbackImage.alt + '" />';

		return outputText;

	}

	

}



/**

 * HTML5VideoObject. Specifies the attributes for the video tag.

 * @param width

 * @param height

 * @param params This is the optional params for the video tag. Ex: {autoplay:"autoplay", controls:"controls", height:"100px", width:"100px", loop:"loop", preload:"preload", src:"sample_url.mp4"

 * @return

 */

function HTML5VideoObject(width, height, params)

{

	this.width = width;

	this.height = height;

	this.params = params;

}



function HTML5VideoAsset(src, type)

{

	this.src = src;

	this.type = type;

}



function HTML5VideoImage(src, width, height, alt, title)

{

	this.src = src;

	this.width = width;

	this.height = height;

	this.alt = alt;

	this.title = title;

}



function HTML5VideoFlashObject(src, width, height, params)

{

	this.src = src;

	this.width = width;

	this.height = height;

	this.params = params;

}