/*
	mediaboxAdvanced v1.2.0 - The ultimate extension of Slimbox and Mediabox; an all-media script
	updated 2010.01.24
	(c) 2007-2009 John Einselen <http://iaian7.com>
		based on
	Slimbox v1.64 - The ultimate lightweight Lightbox clone
	(c) 2007-2008 Christophe Beyls <http://www.digitalia.be>
	MIT-style license.
*/

var Mediabox;

(function() {
	// Global variables, accessible to Mediabox only
	var options = {}, images, activeImage, prevImage, nextImage, top, mTop, left, mLeft, winWidth, winHeight, fx, preload, preloadPrev = new Image(), preloadNext = new Image(), foxfix = false, iefix = false,
	// DOM elements
	overlay, center, image, bottom, captionSplit, title, caption, prevLink, number, nextLink,
	// Mediabox specific vars
	URL, WH, WHL, elrel, mediaWidth, mediaHeight, mediaType = "none", mediaSplit, mediaId = "mediaBox", mediaFmt;

	/*	Initialization	*/

	window.addEvent("domready", function() {
		// Create and append the Mediabox HTML code at the bottom of the document
		document.id(document.body).adopt(
			$$([
				overlay = new Element("div", {id: "mbOverlay"}).addEvent("click", close),
				center = new Element("div", {id: "mbCenter"})
			]).setStyle("display", "none")
		);
		


		bottom = new Element("div", {id: "mbBottom"}).inject(center, 'inside').adopt(
			new Element("a", {id: "mbCloseLink", href: "#"}).addEvent("click", close),
			nextLink = new Element("a", {id: "mbNextLink", href: "#"}).addEvent("click", next),
			prevLink = new Element("a", {id: "mbPrevLink", href: "#"}).addEvent("click", previous),
			title = new Element("div", {id: "mbTitle"}),
			number = new Element("div", {id: "mbNumber"}),
			caption = new Element("div", {id: "mbCaption"})
		);
image = new Element("div", {id: "mbImage"}).inject(center, 'inside');


		fx = {
			overlay: new Fx.Tween(overlay, {property: "opacity", duration: 360}).set(0),
			image: new Fx.Tween(image, {property: "opacity", duration: 360, onComplete: captionAnimate}),
			bottom: new Fx.Tween(bottom, {property: "opacity", duration: 240}).set(0)
		};
	});

	/*	API		*/

	Mediabox = {
		close: function(){ 
			close();	// Thanks to Yosha on the google group for fixing the close function API!
		}, 

		open: function(_images, startImage, _options) {
			options = {
				loop: false,					
				stopKey: true,					
				overlayOpacity: 0.7,			
				resizeOpening: true,			
				resizeDuration: 240,			
				resizeTransition: false,		
				initialWidth: 320,				
				initialHeight: 180,				
				defaultWidth: 640,				
				defaultHeight: 360,				
				showCaption: true,				
				showCounter: false,				
				counterText: '({x} of {y})',	
				imgBackground: false,			
				imgPadding: 70,					
				scriptaccess: 'true',		
				fullscreen: 'true',			
				fullscreenNum: '1',			
				autoplay: 'true',			
				autoplayNum: '1',			
				autoplayYes: 'yes',			
				volume: '100',				
				medialoop: 'true',			
				bgcolor: '#000000',			
				wmode: 'opaque',			
				useNB: false,				
				playerpath: '/js/NonverBlaster.swf',	
				controlColor: '0xFFFFFF',	
				controlBackColor: '0x000000',	
				showTimecode: 'false',		
				JWplayerpath: '/eservice/content/media/video/player-licensed.swf',	
				backcolor:	'ffffff',		
				frontcolor: '999999',		
				lightcolor: '000000',		
				screencolor: '000000',		
				controlbar: 'bottom',		
				controller: 'true',			
				flInfo: 'true',				
				revverID: '187866',			
				revverFullscreen: 'true',	
				revverBack: '000000',		
				revverFront: 'ffffff',		
				revverGrad: '000000',		
				usViewers: 'true',			
				ytBorder: '0',				
				ytColor1: '000000',			
				ytColor2: '333333',			
				ytQuality: '&ap=%2526fmt%3D18', 
				ytRel: '0',					
				ytInfo: '1',				
				ytSearch: '0',				
				vuPlayer: 'basic',			
				vmTitle: '1',				
				vmByline: '1',				
				vmPortrait: '1',			
				vmColor: 'ffffff'			
			}//, _options || {});

			if ((Browser.firefox) && (Browser.version<2)) {	// Fixes Firefox 2 and Camino 1.6 incompatibility with opacity + flash
				foxfix = true;
				options.overlayOpacity = 1;
				overlay.className = 'mbOverlayFF';
			}
			

			if (typeof _images == "string") {	// The function is called for a single image, with URL and Title as first two arguments
				_images = [[_images,startImage,_options]];
				startImage = 0;
			}

			images = _images;
			options.loop = options.loop && (images.length > 1);

			if ((Browser.ie6)) {	// Fixes IE 6 and earlier incompatibilities with CSS position: fixed;
				iefix = true;
				overlay.className = 'mbOverlayIE';
				overlay.setStyle("position", "absolute");
				$$('select', 'input', 'object').setStyle('visibility','hidden');
				position();
			}
			size();
			setup(true);
			top = window.getScrollTop() + (window.getHeight()/2);
			left = window.getScrollLeft() + (window.getWidth()/2);
			fx.resize = new Fx.Morph(center, {duration: options.resizeDuration, onComplete: imageAnimate, transition: options.resizeTransition});
			center.setStyles({top: top, left: left, width: options.initialWidth, height: options.initialHeight, marginTop: -(options.initialHeight/2), marginLeft: -(options.initialWidth/2), display: ""});
			fx.overlay.start(options.overlayOpacity);
			return changeImage(startImage);
		}
	};

	Element.implement({
		mediabox: function(_options, linkMapper) {
			$$(this).mediabox(_options, linkMapper);	// The processing of a single element is similar to the processing of a collection with a single element

			return this;
		}
	});

	Elements.implement({
		/*
			options:	Optional options object, see Mediabox.open()
			linkMapper:	Optional function taking a link DOM element and an index as arguments and returning an array containing 3 elements:
						the image URL and the image caption (may contain HTML)
			linksFilter:Optional function taking a link DOM element and an index as arguments and returning true if the element is part of
						the image collection that will be shown on click, false if not. "this" refers to the element that was clicked.
						This function must always return true when the DOM element argument is "this".
		*/
		mediabox: function(_options, linkMapper, linksFilter) {
			linkMapper = linkMapper || function(el) {
				elrel = el.rel.split(/[\[\]]/);
				elrel = elrel[1];
				return [el.href, el.title, elrel];
			};

			linksFilter = linksFilter || function() {
				return true;
			};

			var links = this;

			links.addEvent('contextmenu', function(e){
				if (this.toString().match(/\.gif|\.jpg|\.png/i)) e.stop();
			});

			links.removeEvents("click").addEvent("click", function() {
				// Build the list of images that will be displayed
				var filteredArray = links.filter(linksFilter, this);
				var filteredLinks = [];
				var filteredHrefs = [];

				filteredArray.each(function(item, index){
					if(filteredHrefs.indexOf(item.toString()) < 0) {
						filteredLinks.include(filteredArray[index]);
						filteredHrefs.include(filteredArray[index].toString());
					};
				});

				return Mediabox.open(filteredLinks.map(linkMapper), filteredHrefs.indexOf(this.toString()), _options);
			});

			return links;
		}
	});

	/*	Internal functions	*/

	function position() {
		overlay.setStyles({top: window.getScrollTop(), left: window.getScrollLeft()});
	}

	function size() {
		winWidth = window.getWidth();
		winHeight = window.getHeight();
		overlay.setStyles({width: winWidth, height: winHeight});
	}

	function setup(open) {
		// Hides on-page objects and embeds while the overlay is open, nessesary to counteract Firefox stupidity
		["object", window.ie ? "select" : "embed"].forEach(function(tag) {
			Array.forEach(document.getElementsByTagName(tag), function(el) {
				if (open) el._mediabox = el.style.visibility;
				//el.style.visibility = open ? "hidden" : el._mediabox;
			});
		});

		overlay.style.display = open ? "" : "none";

		var fn = open ? "addEvent" : "removeEvent";
		if (iefix) window[fn]("scroll", position);
		window[fn]("resize", size);
		document[fn]("keydown", keyDown);
	}

	function keyDown(event) {
		switch(event.code) {
			case 27:	// Esc
			case 88:	// 'x'
			case 67:	// 'c'
				close();
				break;
			case 37:	// Left arrow
			case 80:	// 'p'
				previous();
				break;	
			case 39:	// Right arrow
			case 78:	// 'n'
				next();
		}
		if (options.stopKey) { return false; };
	}

	function previous() {
		return changeImage(prevImage);
	}

	function next() {
		return changeImage(nextImage);
	}

	function changeImage(imageIndex) {
		if (imageIndex >= 0) {
			image.set('html', '');
			activeImage = imageIndex;
			prevImage = ((activeImage || !options.loop) ? activeImage : images.length) - 1;
			nextImage = activeImage + 1;
			if (nextImage == images.length) nextImage = options.loop ? 0 : -1;
			stop();
			center.className = "mbLoading";

// MEDIABOX FORMATING
			if (!images[imageIndex][2]) images[imageIndex][2] = '';	// Thanks to Leo Feyer for offering this fix
			WH = images[imageIndex][2].split(' ');
			WHL = WH.length;
			if (WHL>1) {
				mediaWidth = (WH[WHL-2].match("%")) ? (window.getWidth()*((WH[WHL-2].replace("%", ""))*0.01))+"px" : WH[WHL-2]+"px";
				mediaHeight = (WH[WHL-1].match("%")) ? (window.getHeight()*((WH[WHL-1].replace("%", ""))*0.01))+"px" : WH[WHL-1]+"px";
			} else {
				mediaWidth = "";
				mediaHeight = "";
			}
			URL = images[imageIndex][0];
			URL = encodeURI(URL).replace("(","%28").replace(")","%29");
			captionSplit = images[activeImage][1].split('::');


// IMAGES
			if (URL.match(/\.gif|\.jpg|\.png|twitpic\.com/i) || mediaType == 'image') {
				mediaType = 'img';
				URL = URL.replace(/twitpic\.com/i, "twitpic.com/show/full");
				preload = new Image();
				preload.onload = startEffect;
				preload.src = URL;

// FLV, MP4
			} else if (URL.match(/\.flv|\.mp4/i) || mediaType == 'video') {
				mediaType = 'obj';
				mediaWidth = mediaWidth || options.defaultWidth;
				mediaHeight = mediaHeight || options.defaultHeight;
				if (options.useNB) {
				preload = new Swiff(''+options.JWplayerpath+'?mediaURL='+URL+'&allowSmoothing=true&autoPlay='+options.autoplay+'&buffer=6&showTimecode='+options.showTimecode+'&loop='+options.medialoop+'&controlColor='+options.controlColor+'&controlBackColor='+options.controlBackColor+'&defaultVolume='+options.volume+'&scaleIfFullScreen=true&showScalingButton=true&crop=false', {
					id: 'MediaboxSWF',
					width: mediaWidth,
					height: mediaHeight,
					params: {wmode: options.wmode, bgcolor: options.bgcolor, allowscriptaccess: options.scriptaccess, allowfullscreen: options.fullscreen}
					});
				} else {
				preload = new Swiff(''+options.JWplayerpath+'?file='+URL+'&backcolor='+options.backcolor+'&frontcolor='+options.frontcolor+'&lightcolor='+options.lightcolor+'&screencolor='+options.screencolor+'&autostart='+options.autoplay+'&controlbar='+options.controlbar, {
					id: 'MediaboxSWF',
					width: mediaWidth,
					height: mediaHeight,
					params: {wmode: options.wmode, bgcolor: options.bgcolor, allowscriptaccess: options.scriptaccess, allowfullscreen: options.fullscreen}
					});
				}
				startEffect();

// YouTube
			} else if (URL.match(/youtube\.com\/watch/i)) {
				mediaType = 'obj';
				mediaSplit = URL.split('v=');
				mediaId = mediaSplit[1];
				
				if (mediaId.match(/fmt=18/i)) {
					mediaFmt = '&ap=%2526fmt%3D18';
					mediaWidth = mediaWidth || "560px";
					mediaHeight = mediaHeight || "345px";
				} else if (mediaId.match(/fmt=22/i)) {
					mediaFmt = '&ap=%2526fmt%3D22';
					mediaWidth = mediaWidth || "640px";
					mediaHeight = mediaHeight || "385px";
				} else {
					mediaFmt = options.ytQuality;
					mediaWidth = mediaWidth || "480px";
					mediaHeight = mediaHeight || "295px";
				}
				preload = new Swiff('http://www.youtube.com/v/'+mediaId+'&autoplay='+options.autoplayNum+'&fs='+options.fullscreenNum+mediaFmt+'&border='+options.ytBorder+'&color1=0x'+options.ytColor1+'&color2=0x'+options.ytColor2+'&rel='+options.ytRel+'&showinfo='+options.ytInfo+'&showsearch='+options.ytSearch, {
					id: mediaId,
					width: mediaWidth,
					height: mediaHeight,
					params: {wmode: options.wmode, bgcolor: options.bgcolor, allowscriptaccess: options.scriptaccess, allowfullscreen: options.fullscreen}
					});
				startEffect();
// YouTube
			} else if (URL.match(/youtube\.com\/view/i)) {
				mediaType = 'obj';
				mediaSplit = URL.split('p=');
				mediaId = mediaSplit[1];
				mediaWidth = mediaWidth || "480px";
				mediaHeight = mediaHeight || "385px";
				preload = new Swiff('http://www.youtube.com/p/'+mediaId+'&autoplay='+options.autoplayNum+'&fs='+options.fullscreenNum+mediaFmt+'&border='+options.ytBorder+'&color1=0x'+options.ytColor1+'&color2=0x'+options.ytColor2+'&rel='+options.ytRel+'&showinfo='+options.ytInfo+'&showsearch='+options.ytSearch, {
					id: mediaId,
					width: mediaWidth,
					height: mediaHeight,
					params: {wmode: options.wmode, bgcolor: options.bgcolor, allowscriptaccess: options.scriptaccess, allowfullscreen: options.fullscreen}
					});
				startEffect();
				
// CONTENT TYPES
// INLINE
			} else if (URL.match(/\#mb_/i)) {
				mediaType = 'inline';
				mediaWidth = mediaWidth || options.defaultWidth;
				mediaHeight = mediaHeight || options.defaultHeight;
				URLsplit = URL.split('#');
				preload = $(URLsplit[1]).get('html');
				startEffect();
// HTML
			} else {
				mediaType = 'url';
				mediaWidth = mediaWidth || options.defaultWidth;
				mediaHeight = mediaHeight || options.defaultHeight;
				mediaId = "mediaId_"+new Date().getTime();	// Safari will not update iframe content with a static id.
				preload = new Element('iframe', {
					'src': URL,
					'id': mediaId,
					'width': mediaWidth,
					'height': mediaHeight,
//					'allowtransparency': 'true',
					'frameborder': 0
					});
				startEffect();
			}
		}
		return false;
	}

	function startEffect() {
		if (mediaType == "img"){
			mediaWidth = preload.width;
			mediaHeight = preload.height;
			if (options.imgBackground) {
				image.setStyles({backgroundImage: "url("+URL+")", display: ""});
			} else {	// Thanks to Dusan Medlin for fixing large 16x9 image errors in a 4x3 browser
				if (mediaHeight >= winHeight-options.imgPadding && (mediaHeight / winHeight) >= (mediaWidth / winWidth)) {
					mediaHeight = winHeight-options.imgPadding;
					mediaWidth = preload.width = parseInt((mediaHeight/preload.height)*mediaWidth);
					preload.height = mediaHeight;
				} else if (mediaWidth >= winWidth-options.imgPadding && (mediaHeight / winHeight) < (mediaWidth / winWidth)) {
					mediaWidth = winWidth-options.imgPadding;
					mediaHeight = preload.height = parseInt((mediaWidth/preload.width)*mediaHeight);
					preload.width = mediaWidth;
				}
				if (Browser.Engine.trident) preload = $(preload);
				preload.addEvent('mousedown', function(e){ e.stop(); }).addEvent('contextmenu', function(e){ e.stop(); });
				image.setStyles({backgroundImage: "none", display: ""});
				preload.inject(image);
			}
		} else if (mediaType == "obj") {
			if (Browser.Plugins.Flash.version<8) {
				image.setStyles({backgroundImage: "none", display: ""});
				image.set('html', '<div id="mbError"><b>Error</b><br/>Adobe Flash is either not installed or not up to date, please visit <a href="http://www.adobe.com/shockwave/download/download.cgi?P1_Prod_Version=ShockwaveFlash" title="Get Flash" target="_new">Adobe.com</a> to download the free player.</div>');
				mediaWidth = options.DefaultWidth;
				mediaHeight = options.DefaultHeight;
			} else {
				image.setStyles({backgroundImage: "none", display: ""});
				preload.inject(image);
			}
		} else if (mediaType == "qt") {
			image.setStyles({backgroundImage: "none", display: ""});
			preload;
		} else if (mediaType == "inline") {
			image.setStyles({backgroundImage: "none", display: ""});
			image.set('html', preload);
		} else if (mediaType == "url") {
			image.setStyles({backgroundImage: "none", display: ""});
			preload.inject(image);
		} else {
			image.setStyles({backgroundImage: "none", display: ""});
			image.set('html', '<div id="mbError"><b>Error</b><br/>A file type error has occoured, please visit <a href="iaian7.com/webcode/mediaboxAdvanced" title="mediaboxAdvanced" target="_new">iaian7.com</a> or contact the website author for more information.</div>');
			mediaWidth = options.defaultWidth;
			mediaHeight = options.defaultHeight;
		}
		image.setStyles({width: mediaWidth, height: mediaHeight});

		title.set('html', (options.showCaption) ? captionSplit[0] : "");
		caption.set('html', (options.showCaption && (captionSplit.length > 1)) ? captionSplit[1] : "");
		number.set('html', (options.showCounter && (images.length > 1)) ? options.counterText.replace(/{x}/, activeImage + 1).replace(/{y}/, images.length) : "");

		if ((prevImage >= 0) && (images[prevImage][0].match(/\.gif|\.jpg|\.png|twitpic\.com/i))) preloadPrev.src = images[prevImage][0].replace(/twitpic\.com/i, "twitpic.com/show/full");
		if ((nextImage >= 0) && (images[nextImage][0].match(/\.gif|\.jpg|\.png|twitpic\.com/i))) preloadNext.src = images[nextImage][0].replace(/twitpic\.com/i, "twitpic.com/show/full");

		mediaWidth = image.offsetWidth;
		mediaHeight = image.offsetHeight+bottom.offsetHeight;
		if (mediaHeight >= top+top-10) { mTop = -(top-10) } else { mTop = -(mediaHeight/2) };
		if (mediaWidth >= left+left-10) { mLeft = -(left-10) } else { mLeft = -(mediaWidth/2) };
		if (options.resizeOpening) { fx.resize.start({width: mediaWidth, height: mediaHeight, marginTop: mTop, marginLeft: mLeft});
		} else { center.setStyles({width: mediaWidth, height: mediaHeight, marginTop: mTop, marginLeft: mLeft}); imageAnimate(); }
	}

	function imageAnimate() {
		fx.image.start(1);
	}

	function captionAnimate() {
		center.className = "";
		if (prevImage >= 0) prevLink.style.display = "";
		if (nextImage >= 0) nextLink.style.display = "";
		fx.bottom.start(1);
	}

	function stop() {
		if (preload) preload.onload = function(){};
		fx.resize.cancel();
		fx.image.cancel().set(0);
		fx.bottom.cancel().set(0);
		$$(prevLink, nextLink).setStyle("display", "none");
	}

	function close() {
		if (activeImage >= 0) {
			preload.onload = function(){};
			image.set('html', '');
			for (var f in fx) fx[f].cancel();
			$$('select', 'input', 'object').setStyle('visibility','visible');
			center.setStyle("display", "none");
			fx.overlay.chain(setup).start(0);
		}
		return false;
	}
})();

// AUTOLOAD CODE BLOCK
Mediabox.scanPage = function() {
//	$$('#mb_').each(function(hide) { hide.set('display', 'none'); });
	var links = $$("a").filter(function(el) {
		return el.rel && el.rel.test(/^lightbox/i);
	});
	$$(links).mediabox({/* Put custom options here */}, null, function(el) {
		var rel0 = this.rel.replace(/[[]|]/gi," ");
		var relsize = rel0.split(" ");
		return (this == el) || ((this.rel.length > 8) && el.rel.match(relsize[1]));
	});
};
window.addEvent("domready", Mediabox.scanPage);