/**
 * tools.flashembed 1.0.3 - The future of Flash embedding.
 *
 * Copyright (c) 2009 Tero Piirainen
 * http://flowplayer.org/tools/flash-embed.html
 *
 * Dual licensed under MIT and GPL 2+ licenses
 * http://www.opensource.org/licenses
 *
 * Launch  : March 2008
 * Date: 2009-06-03 07:16:50 +0000 (Wed, 03 Jun 2009)
 * Revision: 1870
 */
(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 opts function
function extend(to, from) {
	if (from) {
		for (key in from) {
			if (from.hasOwnProperty(key)) {
				to[key] = from[key];
			}
		}
	}

	return to;
}


// 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 getHTML(p, c) {


	var e = extend({}, p);

	var ie = document.all;
	var html = '<object width="' +e.width+ '" height="' +e.height+ '"';

	// force id for IE or Flash API cannot be returned
	if (ie && !e.id) {
		e.id = "_" + ("" + Math.random()).substring(9);
	}

	if (e.id) {
		html += ' id="' + e.id + '"';
	}

	// prevent possible caching problems
	// e.src += ((e.src.indexOf("?") != -1 ? "&" : "?") + Math.random());

	if (e.w3c || !ie) {
		html += ' data="' +e.src+ '" type="application/x-shockwave-flash"';
	} else {
		html += ' classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"';
	}

	html += '>';

	if (e.w3c || ie) {
		html += '<param name="movie" value="' +e.src+ '" />';
	}

	// parameters
	e.width = e.height = e.id = e.w3c = e.src = null;

	for (var k in e) {
		if (e[k] !== null) {
			html += '<param name="'+ k +'" value="'+ e[k] +'" />';
		}
	}

	// flashvars
	var vars = "";

	if (c) {
		for (var key in c) {
			if (c[key] !== null) {
				vars += key +'='+ (typeof c[key] == 'object' ? asString(c[key]) : c[key]) + '&';
			}
		}
		vars = vars.substring(0, vars.length -1);
		html += '<param name="flashvars" value=\'' + vars + '\' />';
	}

	html += "</object>";

	return html;

}

//}}}


function Flash(root, opts, flashvars) {

	var version = flashembed.getVersion();

	// API methods for callback
	extend(this, {

		getContainer: function() {
			return root;
		},

		getConf: function() {
			return opts;
		},

		getVersion: function() {
			return version;
		},

		getFlashvars: function() {
			return flashvars;
		},

		getApi: function() {
			return root.firstChild;
		},

		getHTML: function() {
			return getHTML(opts, flashvars);
		}

	});

	// variables
	var required = opts.version;
	var express = opts.expressInstall;


	// everything ok -> generate OBJECT tag
	var ok = !required || flashembed.isSupported(required);

	if (ok) {
		opts.onFail = opts.version = opts.expressInstall = null;
		root.innerHTML = getHTML(opts, flashvars);

	// fail #1. express install
	} else if (required && express && flashembed.isSupported([6,65])) {

		extend(opts, {src: express});

		flashvars = {
			MMredirectURL: location.href,
			MMplayerType: 'PlugIn',
			MMdoctitle: document.title
		};

		root.innerHTML = getHTML(opts, flashvars);

	// fail #2.
	} else {

		// fail #2.1 custom content inside container
		if (root.innerHTML.replace(/\s/g, '') !== '') {
			// minor bug fixed here 08.04.2008 (thanks JRodman)

		// fail #2.2 default content
		} 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>" +

				(root.tagName == 'A' ? "<p>Click here to download latest version</p>" :
					"<p>Download latest version from <a href='http://www.adobe.com/go/getflashplayer'>here</a></p>");

			if (root.tagName == 'A') {
				root.onclick = function() {
					location.href= 'http://www.adobe.com/go/getflashplayer';
				};
			}
		}
	}

	// onFail
	if (!ok && opts.onFail) {
		var ret = opts.onFail.call(this);
		if (typeof ret == 'string') { root.innerHTML = ret; }
	}

	// http://flowplayer.org/forum/8/18186#post-18593
	if (document.all) {
		window[opts.id] = document.getElementById(opts.id);
	}

}

window.flashembed = function(root, conf, flashvars) {

//{{{ construction

	// root must be found / loaded
	if (typeof root == 'string') {
		var el = document.getElementById(root);
		if (el) {
			root = el;
		} else {
			domReady(function() {
				flashembed(root, conf, flashvars);
			});
			return;
		}
	}

	// not found
	if (!root) { return; }


	// setup opts
	var opts = {

		// very common opts
		width: '100%',
		height: '100%',

		// flashembed defaults
		allowfullscreen: true,
		allowscriptaccess: 'always',
		quality: 'high',


		// flashembed specific options
		version: null,
		onFail: null,
		expressInstall: null,
		w3c: false
	};


	if (typeof conf == 'string') {
		conf = {src: conf};
	}

	extend(opts, conf);

	return new Flash(root, opts, flashvars);

//}}}


};


//{{{ 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 version; }
				}
				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

});

//}}}


// setup jquery support
if (jQ) {

	// tools version number
	jQuery.tools = jQuery.tools || {version: {}};
	jQuery.tools.version.flashembed = '1.0.3';


	jQuery.fn.flashembed = function(conf, flashvars) {

		var el = null;

		this.each(function() {
			el = flashembed(this, conf, flashvars);
		});

		return conf.api === false ? this : el;
	};

}

})();