/*


 * jQuery Media Plugin for converting elements into rich media content.


 *


 * Examples and documentation at: http://malsup.com/jquery/media/


 * Copyright (c) 2007-2008 M. Alsup


 * Dual licensed under the MIT and GPL licenses:


 * http://www.opensource.org/licenses/mit-license.php


 * http://www.gnu.org/licenses/gpl.html


 *


 * @author: M. Alsup


 * @version: 0.92 (24-SEP-2009)


 * @requires jQuery v1.1.2 or later


 * $Id: jquery.media.js 2460 2007-07-23 02:53:15Z malsup $


 *


 * Supported Media Players:


 *	- Flash


 *	- Quicktime


 *	- Real Player


 *	- Silverlight


 *	- Windows Media Player


 *	- iframe


 *


 * Supported Media Formats:


 *	 Any types supported by the above players, such as:


 *	 Video: asf, avi, flv, mov, mpg, mpeg, mp4, qt, smil, swf, wmv, 3g2, 3gp


 *	 Audio: aif, aac, au, gsm, mid, midi, mov, mp3, m4a, snd, rm, wav, wma


 *	 Other: bmp, html, pdf, psd, qif, qtif, qti, tif, tiff, xaml


 *


 * Thanks to Mark Hicken and Brent Pedersen for helping me debug this on the Mac!


 * Thanks to Dan Rossi for numerous bug reports and code bits!


 * Thanks to Skye Giordano for several great suggestions!


 * Thanks to Richard Connamacher for excellent improvements to the non-IE behavior!


 */


;(function($) {





/**


 * Chainable method for converting elements into rich media.


 *


 * @param options


 * @param callback fn invoked for each matched element before conversion


 * @param callback fn invoked for each matched element after conversion


 */


$.fn.media = function(options, f1, f2) {


	if (options == 'undo') {


		return this.each(function() {


			var $this = $(this);


			var html = $this.data('media.origHTML');


			if (html)


				$this.replaceWith(html);


		});


	}


	


	return this.each(function() {


		if (typeof options == 'function') {


			f2 = f1;


			f1 = options;


			options = {};


		}


		var o = getSettings(this, options);


		// pre-conversion callback, passes original element and fully populated options


		if (typeof f1 == 'function') f1(this, o);


		


		var r = getTypesRegExp();


		var m = r.exec(o.src.toLowerCase()) || [''];





		o.type ? m[0] = o.type : m.shift();


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


			fn = m[i].toLowerCase();


			if (isDigit(fn[0])) fn = 'fn' + fn; // fns can't begin with numbers


			if (!$.fn.media[fn])


				continue;  // unrecognized media type


			// normalize autoplay settings


			var player = $.fn.media[fn+'_player'];


			if (!o.params) o.params = {};


			if (player) {


				var num = player.autoplayAttr == 'autostart';


				o.params[player.autoplayAttr || 'autoplay'] = num ? (o.autoplay ? 1 : 0) : o.autoplay ? true : false;


			}


			var $div = $.fn.media[fn](this, o);





			$div.css('backgroundColor', o.bgColor).width(o.width);


			


			if (o.canUndo) {


				var $temp = $('<div></div>').append(this);


				$div.data('media.origHTML', $temp.html()); // store original markup


			}


			


			// post-conversion callback, passes original element, new div element and fully populated options


			if (typeof f2 == 'function') f2(this, $div[0], o, player.name);


			break;


		}


	});


};





/**


 * Non-chainable method for adding or changing file format / player mapping


 * @name mapFormat


 * @param String format File format extension (ie: mov, wav, mp3)


 * @param String player Player name to use for the format (one of: flash, quicktime, realplayer, winmedia, silverlight or iframe


 */


var dir = location.pathname.substring(0,location.pathname.lastIndexOf('pages/')-1);


$.fn.media.mapFormat = function(format, player) {


	if (!format || !player || !$.fn.media.defaults.players[player]) return; // invalid


	format = format.toLowerCase();


	if (isDigit(format[0])) format = 'fn' + format;


	$.fn.media[format] = $.fn.media[player];


	$.fn.media[format+'_player'] = $.fn.media.defaults.players[player];


};





// global defautls; override as needed


$.fn.media.defaults = {


	standards:  false,      // use object tags only (no embeds for non-IE browsers)


	canUndo:    true,       // tells plugin to store the original markup so it can be reverted via: $(sel).mediaUndo()


	width:		400,


	height:		400,


	autoplay:	0,		   	// normalized cross-player setting


	bgColor:	'#ffffff', 	// background color


	params:		{ wmode: 'transparent'},	// added to object element as param elements; added to embed element as attrs


	attrs:		{},			// added to object and embed elements as attrs


	flvKeyName: 'file', 	// key used for object src param (thanks to Andrea Ercolino)


	flashvars:	{},			// added to flash content as flashvars param/attr


	flashVersion:	'7',	// required flash version


	expressInstaller: null,	// src for express installer





	// default flash video and mp3 player (@see: http://jeroenwijering.com/?item=Flash_Media_Player)


	//var dir = location.pathname.substring(0,location.pathname.lastIndexOf('pages/')-1);


	


	flvPlayer:	 dir+'/modules/videoplayer/js/mediaplayer.swf',


	mp3Player:	 dir+'/modules/videoplayer/js/mediaplayer.swf',





	// @see http://msdn2.microsoft.com/en-us/library/bb412401.aspx


	silverlight: {


		inplaceInstallPrompt: 'true', // display in-place install prompt?


		isWindowless:		  'true', // windowless mode (false for wrapping markup)


		framerate:			  '24',	  // maximum framerate


		version:			  '0.9',  // Silverlight version


		onError:			  null,	  // onError callback


		onLoad:			      null,   // onLoad callback


		initParams:			  null,	  // object init params


		userContext:		  null	  // callback arg passed to the load callback


	}


};





// Media Players; think twice before overriding


$.fn.media.defaults.players = {


	flash: {


		name:		 'flash',


		title:		 'Flash',


		types:		 'flv,mp3,swf',


		mimetype:	 'application/x-shockwave-flash',


		pluginspage: 'http://www.adobe.com/go/getflashplayer',


		ieAttrs: {


			classid:  'clsid:d27cdb6e-ae6d-11cf-96b8-444553540000',


			type:	  'application/x-oleobject',


			codebase: 'http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=' + $.fn.media.defaults.flashVersion


		}


	},


	quicktime: {


		name:		 'quicktime',


		title:		 'QuickTime',


		mimetype:	 'video/quicktime',


		pluginspage: 'http://www.apple.com/quicktime/download/',


		types:		 'aif,aiff,aac,au,bmp,gsm,mov,mid,midi,mpg,mpeg,mp4,m4a,psd,qt,qtif,qif,qti,snd,tif,tiff,wav,3g2,3gp',


		ieAttrs: {


			classid:  'clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B',


			codebase: 'http://www.apple.com/qtactivex/qtplugin.cab'


		}


	},


	realplayer: {


		name:		  'real',


		title:		  'RealPlayer',


		types:		  'ra,ram,rm,rpm,rv,smi,smil',


		mimetype:	  'audio/x-pn-realaudio-plugin',


		pluginspage:  'http://www.real.com/player/',


		autoplayAttr: 'autostart',


		ieAttrs: {


			classid: 'clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA'


		}


	},


	winmedia: {


		name:		  'winmedia',


		title:		  'Windows Media',


		types:		  'asx,asf,avi,wma,wmv',


		mimetype:	  $.browser.mozilla && isFirefoxWMPPluginInstalled() ? 'application/x-ms-wmp' : 'application/x-mplayer2',


		pluginspage:  'http://www.microsoft.com/Windows/MediaPlayer/',


		autoplayAttr: 'autostart',


		oUrl:		  'url',


		ieAttrs: {


			classid:  'clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6',


			type:	  'application/x-oleobject'


		}


	},


	// special cases


	iframe: {


		name:  'iframe',


		types: 'html,pdf'


	},


	silverlight: {


		name:  'silverlight',


		types: 'xaml'


	}


};





//


//	everything below here is private


//








// detection script for FF WMP plugin (http://www.therossman.org/experiments/wmp_play.html)


// (hat tip to Mark Ross for this script)


function isFirefoxWMPPluginInstalled() {


	var plugs = navigator.plugins;


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


		var plugin = plugs[i];


		if (plugin['filename'] == 'np-mswmp.dll')


			return true;


	}


	return false;


}





var counter = 1;





for (var player in $.fn.media.defaults.players) {


	var types = $.fn.media.defaults.players[player].types;


	$.each(types.split(','), function(i,o) {


		if (isDigit(o[0])) o = 'fn' + o;


		$.fn.media[o] = $.fn.media[player] = getGenerator(player);


		$.fn.media[o+'_player'] = $.fn.media.defaults.players[player];


	});


};





function getTypesRegExp() {


	var types = '';


	for (var player in $.fn.media.defaults.players) {


		if (types.length) types += ',';


		types += $.fn.media.defaults.players[player].types;


	};


	return new RegExp('\\.(' + types.replace(/,/ig,'|') + ')\\b');


};





function getGenerator(player) {


	return function(el, options) {


		return generate(el, options, player);


	};


};





function isDigit(c) {


	return '0123456789'.indexOf(c) > -1;


};





// flatten all possible options: global defaults, meta, option obj


function getSettings(el, options) {


	options = options || {};


	var $el = $(el);


	var cls = el.className || '';


	// support metadata plugin (v1.0 and v2.0)


	var meta = $.metadata ? $el.metadata() : $.meta ? $el.data() : {};


	meta = meta || {};


	var w = meta.width	 || parseInt(((cls.match(/w:(\d+)/)||[])[1]||0));


	var h = meta.height || parseInt(((cls.match(/h:(\d+)/)||[])[1]||0));





	if (w) meta.width	= w;


	if (h) meta.height = h;


	if (cls) meta.cls = cls;





	var a = $.fn.media.defaults;


	var b = options;


	var c = meta;





	var p = { params: { bgColor: options.bgColor || $.fn.media.defaults.bgColor } };


	var opts = $.extend({}, a, b, c);


	$.each(['attrs','params','flashvars','silverlight'], function(i,o) {


		opts[o] = $.extend({}, p[o] || {}, a[o] || {}, b[o] || {}, c[o] || {});


	});





	if (typeof opts.caption == 'undefined') opts.caption = $el.text();





	// make sure we have a source!


	opts.src = opts.src || $el.attr('href') || $el.attr('src') || 'unknown';


	return opts;


};





//


//	Flash Player


//





// generate flash using SWFObject library if possible


$.fn.media.swf = function(el, opts) {


	if (!window.SWFObject && !window.swfobject) {


		// roll our own


		if (opts.flashvars) {


			var a = [];


			for (var f in opts.flashvars)


				a.push(f + '=' + opts.flashvars[f]);


			if (!opts.params) opts.params = {};


			opts.params.flashvars = a.join('&');


		}


		return generate(el, opts, 'flash');


	}





	var id = el.id ? (' id="'+el.id+'"') : '';


	var cls = opts.cls ? (' class="' + opts.cls + '"') : '';


	var $div = $('<div' + id + cls + '>');





	// swfobject v2+


	if (window.swfobject) {


		$(el).after($div).appendTo($div);


		if (!el.id) el.id = 'movie_player_' + counter++;





		// replace el with swfobject content


		swfobject.embedSWF(opts.src, el.id, opts.width, opts.height, opts.flashVersion,


			opts.expressInstaller, opts.flashvars, opts.params, opts.attrs);


	}


	// swfobject < v2


	else {


		$(el).after($div).remove();


		var so = new SWFObject(opts.src, 'movie_player_' + counter++, opts.width, opts.height, opts.flashVersion, opts.bgColor);


		if (opts.expressInstaller) so.useExpressInstall(opts.expressInstaller);





		for (var p in opts.params)


			if (p != 'bgColor') so.addParam(p, opts.params[p]);


		for (var f in opts.flashvars)


			so.addVariable(f, opts.flashvars[f]);


		so.write($div[0]);


	}





	if (opts.caption) $('<div>').appendTo($div).html(opts.caption);


	return $div;


};





// map flv and mp3 files to the swf player by default


$.fn.media.flv = $.fn.media.mp3 = function(el, opts) {


	var src = opts.src;


	var player = /\.mp3\b/i.test(src) ? $.fn.media.defaults.mp3Player : $.fn.media.defaults.flvPlayer;


	var key = opts.flvKeyName;


	src = encodeURIComponent(src);


	opts.src = player;


	opts.src = opts.src + '?'+key+'=' + (src);


	var srcObj = {};


	srcObj[key] = src;


	opts.flashvars = $.extend({}, srcObj, opts.flashvars );


	return $.fn.media.swf(el, opts);


};





//


//	Silverlight


//


$.fn.media.xaml = function(el, opts) {


	if (!window.Sys || !window.Sys.Silverlight) {


		if ($.fn.media.xaml.warning) return;


		$.fn.media.xaml.warning = 1;


		alert('You must include the Silverlight.js script.');


		return;


	}





	var props = {


		width: opts.width,


		height: opts.height,


		background: opts.bgColor,


		inplaceInstallPrompt: opts.silverlight.inplaceInstallPrompt,


		isWindowless: opts.silverlight.isWindowless,


		framerate: opts.silverlight.framerate,


		version: opts.silverlight.version


	};


	var events = {


		onError: opts.silverlight.onError,


		onLoad: opts.silverlight.onLoad


	};





	var id1 = el.id ? (' id="'+el.id+'"') : '';


	var id2 = opts.id || 'AG' + counter++;


	// convert element to div


	var cls = opts.cls ? (' class="' + opts.cls + '"') : '';


	var $div = $('<div' + id1 + cls + '>');


	$(el).after($div).remove();





	Sys.Silverlight.createObjectEx({


		source: opts.src,


		initParams: opts.silverlight.initParams,


		userContext: opts.silverlight.userContext,


		id: id2,


		parentElement: $div[0],


		properties: props,


		events: events


	});





	if (opts.caption) $('<div>').appendTo($div).html(opts.caption);


	return $div;


};





//


// generate object/embed markup


//


function generate(el, opts, player) {


	var $el = $(el);


	var o = $.fn.media.defaults.players[player];





	if (player == 'iframe') {


		var o = $('<iframe' + ' width="' + opts.width + '" height="' + opts.height + '" >');


		o.attr('src', opts.src);


		o.css('backgroundColor', o.bgColor);


	}


	else if ($.browser.msie) {


		var a = ['<object width="' + opts.width + '" height="' + opts.height + '" '];


		for (var key in opts.attrs)


			a.push(key + '="'+opts.attrs[key]+'" ');


		for (var key in o.ieAttrs || {}) {


			var v = o.ieAttrs[key];


			if (key == 'codebase' && window.location.protocol == 'https:')


				v = v.replace('http','https');


			a.push(key + '="'+v+'" ');


		}


		a.push('></ob'+'ject'+'>');


		var p = ['<param name="' + (o.oUrl || 'src') +'" value="' + opts.src + '">'];


		for (var key in opts.params)


			p.push('<param name="'+ key +'" value="' + opts.params[key] + '">');


		var o = document.createElement(a.join(''));


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


			o.appendChild(document.createElement(p[i]));


	}


	else if (o.standards) {


		// Rewritten to be standards compliant by Richard Connamacher


		var a = ['<object type="' + o.mimetype +'" width="' + opts.width + '" height="' + opts.height +'"'];


		if (opts.src) a.push(' data="' + opts.src + '" ');


		a.push('>');


		a.push('<param name="' + (o.oUrl || 'src') +'" value="' + opts.src + '">');


		for (var key in opts.params) {


			if (key == 'wmode' && player != 'flash') // FF3/Quicktime borks on wmode


				continue;


			a.push('<param name="'+ key +'" value="' + opts.params[key] + '">');


		}


		// Alternate HTML


		a.push('<div><p><strong>'+o.title+' Required</strong></p><p>'+o.title+' is required to view this media. <a href="'+o.pluginspage+'">Download Here</a>.</p></div>');


		a.push('</ob'+'ject'+'>');


	}


	 else {


	        var a = ['<embed width="' + opts.width + '" height="' + opts.height + '" style="display:block"'];


	        if (opts.src) a.push(' src="' + opts.src + '" ');


	        for (var key in opts.attrs)


	            a.push(key + '="'+opts.attrs[key]+'" ');


	        for (var key in o.eAttrs || {})


	            a.push(key + '="'+o.eAttrs[key]+'" ');


	        for (var key in opts.params) {


	            if (key == 'wmode' && player != 'flash') // FF3/Quicktime borks on wmode


	            	continue;


	            a.push(key + '="'+opts.params[key]+'" ');


	        }


	        a.push('></em'+'bed'+'>');


	    }	


	// convert element to div


	var id = el.id ? (' id="'+el.id+'"') : '';


	var cls = opts.cls ? (' class="' + opts.cls + '"') : '';


	var $div = $('<div' + id + cls + '>');


	$el.after($div).remove();


	($.browser.msie || player == 'iframe') ? $div.append(o) : $div.html(a.join(''));


	if (opts.caption) $('<div>').appendTo($div).html(opts.caption);


	return $div;


};








})(jQuery);