/*!
	Slimbox v1.63 - The ultimate lightweight Lightbox clone
	(c) 2007-2008 Christophe Beyls <http://www.digitalia.be>
	MIT-style license.
*/

var Pagebox;

(function() {

	// Global variables, accessible to Slimbox only
	var elementsStyle = {}, state = 0, options, images, activeImage, prevImage, nextImage, top, fx,
	// State values: 0 (closed or closing), 1 (open and ready), 2+ (open and busy with animation)

	// DOM elements
	overlay, center, content, prevLink, nextLink, bottomContainer, bottom, caption, number;

	/*
		Initialization
	*/
/*
	window.addEvent("domready", function() {
		// Append the Slimbox HTML code at the bottom of the document
		$(document.body).adopt(
			$$([
				overlay = new Element("div", {id: "lbOverlay"}).addEvent("click", close),
				center = new Element("div", {id: "lbCenter"}),
				bottomContainer = new Element("div", {id: "lbBottomContainer"})
			]).setStyle("display", "none")
		);

		content = new Element("div", {id: "lbImage"}).injectInside(center);

		bottom = new Element("div", {id: "lbBottom"}).injectInside(bottomContainer).adopt(
			new Element("a", {id: "lbCloseLink", href: "#"}).addEvent("click", close),
			caption = new Element("div", {id: "lbCaption"}),
			number = new Element("div", {id: "lbNumber"}),
			new Element("div", {styles: {clear: "both"}})
		);

		fx = {
			overlay: new Fx.Tween(overlay, {property: "opacity", duration: 500}).set(0),
			content: new Fx.Tween(content, {property: "opacity", duration: 500, onComplete: nextEffect}),
			bottom: new Fx.Tween(bottom, {property: "margin-top", duration: 400})
		};
	});
*/

	/*
		API
	*/

	Pagebox = {
		// open: function(_images, startImage, _options) {
		open: function(el, _options) {
			options = $extend({
				loop: false,				// Allows to navigate between first and last images
				overlayOpacity: 0.8,			// 1 is opaque, 0 is completely transparent (change the color in the CSS file)
				resizeDuration: 400,			// Duration of each of the box resize animations (in milliseconds)
				resizeTransition: false,		// Default transition in mootools
				initialWidth: 600,			// Initial width of the box (in pixels)
				initialHeight: 450,			// Initial height of the box (in pixels)
				animateCaption: true,
        showCaption: true,
				showCounter: true,			// If true, a counter will only be shown if there is more than 1 image to display
				counterText: "Image {x} of {y}"		// Translate or change as you wish
			}, _options || {});

			// The function is called for a single image, with URL and Title as first two arguments
      
			options.loop = false;
			position();
			setup(true);
			top = window.getScrollTop() + (window.getHeight() / 15);
			fx.resize = new Fx.Morph(center, $extend({duration: options.resizeDuration, onComplete: nextEffect}, options.resizeTransition ? {transition: options.resizeTransition} : {}));
			center.setStyles({top: top, width: options.initialWidth, height: options.initialHeight, marginLeft: -(options.initialWidth/2), display: ""});
			fx.overlay.start(options.overlayOpacity);
			state = 1;
			return loadPage(el);
		},
    close: close
	};

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

			return this;
		}
	});

	Elements.implement({
		/*
			options:	Optional options object, see Slimbox.open()
			linkMapper:	Optional function taking a link DOM element and an index as arguments and returning an array containing 2 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".
		*/
		pagebox: function(_options, linkMapper, linksFilter) {
			linkMapper = linkMapper || function(el) {
				return [el.href, el.title];
			};

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

			var links = this;

			links.removeEvents("click").addEvent("click", function(e) {
        // var ev = new Event(e);
        
				// Build the list of images that will be displayed
				var filteredLinks = links.filter(linksFilter, this);
				// return Pagebox.open(filteredLinks.map(linkMapper), filteredLinks.indexOf(this), _options);
        var el = new Element(e.target);
        if(el.tagName.toLowerCase() != 'a')
          if(!(el = el.getParent('a')))
            return false;

        var opts = {};
        if(/-showCaption/.test(el.rel)) {
          opts.showCaption = false;
        }
        var matches;
        if(matches = /-initialWidth=(\d+)/.exec(el.rel)) {
          opts.initialWidth = matches[1];
        }

				return Pagebox.open(el, opts); // filteredLinks.map(linkMapper), filteredLinks.indexOf(this), _options);
			});

			return links;
		}
	});


	/*
		Internal functions
	*/

	function position() {
		overlay.setStyles({top: window.getScrollTop(), height: window.getHeight()});
	}

	function setup(open) {
		["object", window.ie ? "select" : "embed"].forEach(function(tag) {
			Array.forEach(document.getElementsByTagName(tag), function(el) {
				if (open) elementsStyle[el] = el.style.visibility;
				el.style.visibility = open ? "hidden" : elementsStyle[el];
			});
		});

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

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

	function keyDown(event) {
		switch(event.code) {
			case 27:	// Esc
				close();
				break;
		}
		// Prevent default keyboard action (like navigating inside the page)
		// return false;
	}

  function loadPage(a) {
   
    a.modal_url = a.href;
    center.className = "lbLoading";

    caption.set('html', a.title || '');
    state = 2;
    var req = new Request.HTML({method:'get', url: a.modal_url, update: content}).addEvent('complete', nextEffect).send();

    // a.href = 'javascript:void(0);';

    return false;
  }

	function changeImage(imageIndex) {
		if ((state == 1) && (imageIndex >= 0)) {
			state = 2;
			if (nextImage == images.length) nextImage = options.loop ? 0 : -1;

			$$(prevLink, nextLink, content, bottomContainer).setStyle("display", "none");
			fx.bottom.cancel().set(0);
			fx.content.set(0);
			center.className = "lbLoading";
		}

		return false;
	}

	function nextEffect() {
		switch (state++) {
			case 2:
				center.className = "";
				$$(content, bottom).setStyle("width", (options.initialWidth-40) + 'px');


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

				state++;
			case 3:
				if (center.clientWidth != content.offsetWidth) {
					fx.resize.start({width: content.offsetWidth, marginLeft: -content.offsetWidth/2});
					break;
				}
				state++;
			case 4:
				bottomContainer.setStyles({top: top + center.clientHeight, marginLeft: center.style.marginLeft, visibility: "hidden", display: ""});
				fx.content.start(1);
				break;
			case 5:
        if(!options.showCaption) return;
				if (prevImage >= 0) prevLink.style.display = "";
				if (nextImage >= 0) nextLink.style.display = "";
				if (options.animateCaption) {
					fx.bottom.set(-bottom.offsetHeight).start(0);
				}
				bottomContainer.style.visibility = "";
				state = 1;
		}
	}

	function close() {
		if (state) {
			state = 0;
			for (var f in fx) fx[f].cancel();
			$$(center, bottomContainer).setStyle("display", "none");
      $(center).getElement('div').empty();
			fx.overlay.chain(setup).start(0);
		}

		return false;
	}

})();


// AUTOLOAD CODE BLOCK (MAY BE CHANGED OR REMOVED)
Pagebox.scanPage = function() {
	var links = $$("a").filter(function(el) {
		return el.rel && el.rel.test(/^pagebox/i);
	});
	$$(links).pagebox({/* Put custom options here */}, null, function(el) {
		return (this == el) || ((this.rel.length > 8) && (this.rel == el.rel));
	});
};
window.addEvent("domready", Pagebox.scanPage);