/** 
 * flashembed 0.34. Adobe Flash embedding script
 * 
 * ../../tools/flash_embed.html
 *
 * Copyright (c) 2008 Tero Piirainen (support@flowplayer.org)
 *
 * Released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 * 
 * >> Basically you can do anything you want but leave this header as is <<
 *
 * first version 0.01 - 03/11/2008 
 * version 0.34 - Tue Nov 11 2008 09:09:52 GMT-0000 (GMT+00:00)
 */
(function() { 
 
//{{{ utility functions 
		
var jQ = typeof jQuery == 'function';


// from "Pro JavaScript techniques" by John Resig
function isDomReady() {
	
	if (domReady.done)  { return false; }
	
	var d = document;
	if (d && d.getElementsByTagName && d.getElementById && d.body) {
		clearInterval(domReady.timer);
		domReady.timer = null;
		
		for (var i = 0; i < domReady.ready.length; i++) {
			domReady.ready[i].call();	
		}
		
		domReady.ready = null;
		domReady.done = true;
	} 
}

// if jQuery is present, use it's more effective domReady method
var domReady = jQ ? jQuery : function(f) {
	
	if (domReady.done) {
		return f();	
	}
	
	if (domReady.timer) {
		domReady.ready.push(f);	
		
	} else {
		domReady.ready = [f];
		domReady.timer = setInterval(isDomReady, 13);
	} 
};	


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


function concatVars(vars) {		
	var out = "";
	
	for (var key in vars) { 
		if (vars[key]) {
			out += [key] + '=' + asString(vars[key]) + '&';
		}
	}			
	return out.substring(0, out.length -1);				
}  



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

	switch (typeOf(obj)){
		case 'string':
			obj = obj.replace(new RegExp('(["\\\\])', 'g'), '\\$1');
			
			// flash does not handle %- characters well. transforms "50%" to "50pct" (a dirty hack, I admit)
			obj = obj.replace(/^\s?(\d+)%/, "$1pct");
			return '"' +obj+ '"';
			
		case 'array':
			return '['+ map(obj, function(el) {
				return asString(el);
			}).join(',') +']'; 
			
		case 'function':
			return '"function()"';
			
		case 'object':
			var str = [];
			for (var prop in obj) {
				if (obj.hasOwnProperty(prop)) {
					str.push('"'+prop+'":'+ asString(obj[prop]));
				}
			}
			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) {
		if (arr.hasOwnProperty(i)) {
			newArr[i] = func(arr[i]);
		}
	}
	return newArr;
}
	
function getEmbedCode(p, c) {
	var html = '<embed type="application/x-shockwave-flash" ';

	if (p.id) { extend(p, {name:p.id}); }
	
	for (var key in p) { 
		if (p[key] !== null) { 
			html += key + '="' +p[key]+ '"\n\t';
		}
	}

	if (c) {
		 html += 'flashvars=\'' + concatVars(c) + '\'';
	}
	
	// thanks Tom Price (07/17/2008)
	html += '/>';
	
	return html;
}

function getObjectCode(p, c, embeddable) {
	
	var html = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" ';
	html += 'width="' + p.width + '" height="' + p.height + '"'; 
	
	// force id for IE. otherwise embedded Flash object cannot be returned
	if (!p.id && document.all) {
		p.id = "_" + ("" + Math.random()).substring(5);
	} 
	
	if (p.id) {
		html += ' id="' + p.id + '"';
	}
	
	html += '>';  
	
	// sometimes ie fails to load flash if it's on cache
	if (document.all) {
		p.src += ((p.src.indexOf("?") != -1 ? "&" : "?") + Math.random());		
	} 
	
	html += '\n\t<param name="movie" value="'+ p.src +'" />';

	var e = extend({}, p);
	e.id = e.width = e.height = e.src = null;
	
	for (var k in e) {
		if (e[k] !== null) {
			html += '\n\t<param name="'+ k +'" value="'+ e[k] +'" />';
		}
	}
	
	if (c) {
		html += '\n\t<param name="flashvars" value=\'' + concatVars(c) + '\' />';
	}
	
	if (embeddable) {
		html += getEmbedCode(p, c);	
	}
	 
	html += "</object>";
	
	return html;
}

function getFullHTML(p, c) {
	return getObjectCode(p, c, true);	
}

function getHTML(p, c) { 
	var isNav = navigator.plugins && navigator.mimeTypes && navigator.mimeTypes.length; 
	return (isNav) ? getEmbedCode(p, c) : getObjectCode(p, c);
}

//}}}

	
window.flashembed = function(root, userParams, flashvars) {	
	
	
//{{{ construction
		
	// setup params
	var params = {
		
		// very common params
		src: '#',
		width: '100%',
		height: '100%',		
		
		// flashembed specific options
		version:null,
		onFail:null,
		expressInstall:null,  
		debug: false,
		
		// flashembed defaults
		// bgcolor: 'transparent',
		allowfullscreen: true,
		allowscriptaccess: 'always',
		quality: 'high',
		type: 'application/x-shockwave-flash',
		pluginspage: 'http://www.adobe.com/go/getflashplayer'
	};
	
	
	if (typeof userParams == 'string') {
		userParams = {src: userParams};	
	}
	
	extend(params, userParams);			 
		
	var version = flashembed.getVersion(); 
	var required = params.version; 
	var express = params.expressInstall;		 
	var debug = params.debug;

	
	if (typeof root == 'string') {
		var el = document.getElementById(root);
		if (el) {
			root = el;	
		} else {
			domReady(function() {
				flashembed(root, userParams, flashvars);
			});
			return; 		
		} 
	}
	
	if (!root) { return; }

	
	// is supported 
	if (!required || flashembed.isSupported(required)) {
		params.onFail = params.version = params.expressInstall = params.debug = null;
		
		// root.innerHTML may cause broplems: http://domscripting.com/blog/display/99
		// thanks to: Ryan Rud
		// var tmp = document.createElement("extradiv");
		// tmp.innerHTML = getHTML();
		// root.appendChild(tmp);
		
		root.innerHTML = getHTML(params, flashvars);
		
		// return our API			
		return root.firstChild;
		
	// custom fail event
	} else if (params.onFail) {
		var ret = params.onFail.call(params, flashembed.getVersion(), flashvars);
		if (ret === true) { root.innerHTML = ret; }		
		

	// express install
	} else if (required && express && flashembed.isSupported([6,65])) {
		
		extend(params, {src: express});
		
		flashvars = {
			MMredirectURL: location.href,
			MMplayerType: 'PlugIn',
			MMdoctitle: document.title
		};
		
		root.innerHTML = getHTML(params, flashvars);	
		
	// not supported
	} else {

		// minor bug fixed here 08.04.2008 (thanks JRodman)
		
		if (root.innerHTML.replace(/\s/g, '') !== '') {
			// 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>";
		}
	}

	return root;
	
//}}}
	
	
};


//{{{ static methods

extend(window.flashembed, {

	// returns arr[major, fix]
	getVersion: function() {
	
		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 { 
					_a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
					version = [6, 0];
					_a.AllowScriptAccess = "always"; // throws if fp < 6.47 
					
				} catch(ee) {
					if (version[0] == 6) { return; }
				}
				try {
					_a = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
				} catch(eee) {
				
				}
				
			}
			
			if (typeof _a == "object") {
				_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;
	},
	
	isSupported: function(version) {
		var now = flashembed.getVersion();
		var ret = (now[0] > version[0]) || (now[0] == version[0] && now[1] >= version[1]);			
		return ret;
	},
	
	domReady: domReady,
	
	// returns a String representation from JSON object 
	asString: asString,
	
	getHTML: getHTML,
	
	getFullHTML: getFullHTML
	
});

//}}}


// setup jquery support
if (jQ) {
	
	jQuery.prototype.flashembed = function(params, flashvars) { 
		return this.each(function() { 
			flashembed(this, params, flashvars);
		});
	};

}

})();