/**
 * flashembed 0.25. Adobe Flash embedding script
 * 
 * http://flowplayer.org/player/flash-embed.html
 *
 * Copyright (c) 2008 Tero Piirainen (tero@flowplayer.org)
 *
 * Released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * = Basically you can do anything but leave this header as is
 *
 * Version: 0.10 - 03/11/2008
 * Version: 0.20 - 03/20/2008
 * Version: 0.25 - 03/29/2008
 */

function flashembed (ident)
	{
	var root = document.getElementById (ident);

	// setup params
	var params =
		{
		// very common params
		src: 'player.swf',
		width: 284,
		height: 188,

		// flashembed specific options
		version: null,
		loadEvent: null,
		onFail: null,
		expressInstall: null,

		// flashembed defaults
		allowfullscreen: false,
		allowscriptaccess: 'always',
		quality: 'high',
		bgcolor: '#CDE5B8',
		type: 'application/x-shockwave-flash',
		pluginspage: 'http://www.adobe.com/go/getflashplayer'
		};

	var flashvars =
		{
		config: {
		        videoFile: ident+'.flv',
		        autoPlay: true,
		        loop: false,
		        initialScale: 'orig',
		        allowResize: false,
		        showMenu: false,
		        showFullScreenButton: false,
		        useNativeFullScreen: false,
		        timeDisplayFontColor: '0xFFFFFF',
		        googleAnalyticsPrefix: 'video'
		        }
		};

// extend (params, userParams);

	var evt = params.loadEvent;
	params.loadEvent = null;

	// setup "lazy loading"
	if (evt)
		{
		root['on' + evt] = function() { load(); };
		}
	else
		{
		load();
		}

	// override extend params function
	function extend(to, from)
		{
		if (from)
			{
			for (key in from)
				{
				to[key] = from[key];
				}
			}
		}

	// id of the generated object
	var id = params.id;

	var fail = params.onFail;

	function load()
		{
		var version = getVersion();
		var required = params.version;
		var express = params.expressInstall;
		params.onFail = params.version = params.expressInstall = null;

		// is supported
		if (!required || isSupported(required))
			{
			root.innerHTML = getHTML();
			}
		// custom fail event
		else if (fail)
			{
			var ret = fail.call (params, getVersion(), flashvars);
			if (ret) root.innerHTML = ret;		
			}

		// express install
		else if (required && express && isSupported([6,0,65]))
			{
			extend(params, {src: express});

			flashvars =
				{
				MMredirectURL: location.href,
				MMplayerType: 'PlugIn',
				MMdoctitle: $('title').text()
				};

			root.innerHTML = getHTML();
			}
		// not supported
		else
			{
			if (root.innerHtml != '')
				{
				// custom content was supplied
				}
			else
				{
				root.innerHTML =
					"<h2>Flash version " + required + " or greater is required</h2>" +
					"<h3>" + (version[0] > 0 ?
						"Your version is " + version : "You have no flash plugin installed") +
					"</h3>" +
					"<p>Download latest version from <a href='" + params.pluginspage + "'>here</a></p>";
				}
			}

			root['on' + evt] = null;
			}


	function isSupported(version)
		{
		var now = getVersion();
		return now[0] >= version[0] && now[1] >= version[1] && (now[2] == null || now[2] >= version[2]);
		}


	function getHTML()
		{
		var html = "";

		// mozilla
		if (navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length)
			{
			html = '<embed type="application/x-shockwave-flash" ';

			extend(params, {name:id});

			for(var key in params)
				{
				if (params[key] != null)
					html += [key] + '="' +params[key]+ '"\n\t';
				}

			if (typeof flashvars == 'function') flashvars = flashvars();

			if (flashvars) {
				html += 'flashvars=\'';
				for(var key in flashvars) {
					html += [key] + '=' + asString(flashvars[key]) + '&';
				}
				html += '\'';
			}

			html += '/>';

		// ie
		} else {

			html = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" ';
			html += 'width="' + params.width + '" height="' + params.height + '"';
			if (params.id) html += ' id="' + params.id + '"';
			html += '>';
			html += '\n\t<param name="movie" value="'+ params.src +'" />';

			params.id = params.src = params.width = params.height = null;

			for (var key in params) {
				if (params[key] != null)
					html += '\n\t<param name="'+ key +'" value="'+ params[key] +'" />';
			}

			if (flashvars) {
				html += '\n\t<param name="flashvars" value=\'';
				for(var key in flashvars) {
					html += [key] + '=' + asString(flashvars[key]) + '&';
				}
				html += '\' />';
			}

			html += "</object>";
		}

		return html;
	}


	// arr[major, minor, fix]
	function getVersion() {

		var version = [0, 0];

		if (navigator.plugins && typeof navigator.plugins["Shockwave Flash"] == "object") {
			var _d = navigator.plugins["Shockwave Flash"].description;
			if (typeof _d != "undefined") {
				_d = _d.replace(/^.*\s+(\S+\s+\S+$)/, "$1");
				var _m = parseInt(_d.replace(/^(.*)\..*$/, "$1"), 10);
				var _r = /r/.test(_d) ? parseInt(_d.replace(/^.*r(.*)$/, "$1"), 10) : 0;
				version = [_m, _r];
			}

		} else if (window.ActiveXObject) {

			try { // avoid fp 6 crashes
				var _a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");

			} catch(e) {
				try {
					var _a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
					version = [6, 0];
					_a.AllowScriptAccess = "always"; // throws if fp < 6.47 

				} catch(e) {
					if (version[0] == 6) return;
				}
				try {
					var _a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
				} catch(e) {

				}

			}

			if (typeof _a == "object") {
				var _d = _a.GetVariable("$version"); // bugs in fp 6.21 / 6.23
				if (typeof _d != "undefined") {
					_d = _d.replace(/^\S+\s+(.*)$/, "$1").split(",");
					version = [parseInt(_d[0], 10), parseInt(_d[2], 10)];
				}
			}
		}

	return version;
	}


	// JSON.asString() function
	function asString(obj) {

		switch (typeOf(obj)){
			case 'string':
				return '"'+obj.replace(new RegExp('(["\\\\])', 'g'), '\\$1')+'"';
			case 'array':

				return '['+ map(obj, function(el) {
					return asString(el);
				}).join(',') +']';


			case 'object':
				var str = [];
				for (var property in obj) {

					str.push('"'+property+'":'+ asString(obj[property]));
				}
				return '{'+str.join(',')+'}';
		}

		// replace ' --> "  and remove spaces
		return String(obj)
			.replace(/\s/g, " ")
			.replace(/\'/g, "\"");
	}


	// private functions
	function typeOf(obj){
		if (obj === null || obj === undefined) return false;
		var type = typeof obj;
		return (type == 'object' && obj.push) ? 'array' : type;
	}


	// version 9 bugfix: (http://blog.deconcept.com/2006/07/28/swfobject-143-released/)
	if (window.attachEvent) {
		window.attachEvent("onbeforeunload", function(){
			__flash_unloadHandler = function() {};
			__flash_savedUnloadHandler = function() {};
		});
	}

	function map(arr, func) {
	  var newArr = []; 
	  for (var i in arr) {
		 newArr[i] = func(arr[i]);
	  }
	  return newArr;
	}
	
	// expose as static method
	flashembed.getVersion = getVersion;
	flashembed.isSupported = isSupported; 

	return root;
}



// setup jquery support
if (typeof jQuery == 'function') {

	(function($) {
		$.fn.extend({
			flashembed: function(params, flashvars) {
				return this.each(function() {
					new flashembed(this, params, flashvars);
				});
			}
		});
	})(jQuery);
}