/* ------------------------------------------------------------------------
Class: prettyPhoto
Use: Lightbox clone for jQuery
Author: Stephane Caron (http://www.no-margin-for-errors.com)
Version: 2.2.5
------------------------------------------------------------------------ */

function($) {
$.fn.prettyPhoto = function(settings) {
	// global Variables
	var caller = 0;
	var doresize = true;
	var imagesArray = [];
	var setPosition = 0; /* Position in the set */

	$(window).scroll(function(){ _centerPicture(); });
	$(window).resize(function(){ _centerPicture(); _resizeOverlay(); });
	$(document).keyup(function(e){
		switch(e.keyCode){
			case 37:
				if (setPosition == 1) return;
				changePicture('previous');
				break;
			case 39:
				if (setPosition == setCount) return;
				changePicture('next');
				break;
			case 27:
				close();
				break;
		};
    });


	settings = jQuery.extend({
		animationSpeed: 'normal', /* fast/slow/normal */
		padding: 40, /* padding for each side of the picture */
		opacity: 0.35, /* Value between 0 and 1 */
		showTitle: true, /* true/false */
		allowresize: true, /* true/false */
		counter_separator_label: '/', /* The separator for the gallery counter 1 "of" 2 */
		theme: 'light_rounded' /* light_rounded / dark_rounded / light_square / dark_square */
	}, settings);

	$(this).each(function(){
		var hasTitle = false;
		var isSet = false;
		var setCount = 0; /* Total images in the set */
		var arrayPosition = 0; /* Total position in the array */
		
		imagesArray[imagesArray.length] = this;
		$(this).bind('click',function(){
			open(this);
			return false;
		});
	});

	function open(el) {
		caller = $(el);
	
		// Find out if the picture is part of a set
		theRel = $(caller).attr('rel');
		galleryRegExp = /\[(?:.*)\]/;
		theGallery = galleryRegExp.exec(theRel);
	
		// Calculate the number of items in the set, and the position of the clicked picture.
		isSet = false;
		setCount = 0;
		for (i = 0; i < imagesArray.length; i++){
			if($(imagesArray[i]).attr('rel').indexOf(theGallery) != -1){
				setCount++;
				if(setCount > 1) isSet = true;

				if($(imagesArray[i]).attr('href') == $(el).attr('href')){
					setPosition = setCount;
					arrayPosition = i;
				};
			};
		};
	
		_buildOverlay(isSet);

		// Display the current position
		$('div.pp_pic_holder p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);

		// Position the picture in the center of the viewing area
		_centerPicture();
	
		$('div.pp_pic_holder #full_res').hide();
		$('.pp_loaderIcon').show();
		
		_preload();
	};

	showimage = function(width,height,containerWidth,containerHeight,contentHeight,contentWidth,resized){
		$('.pp_loaderIcon').hide();
		var scrollPos = _getScroll();

		if($.browser.opera) {
			windowHeight = window.innerHeight;
			windowWidth = window.innerWidth;
		}else{
			windowHeight = $(window).height();
			windowWidth = $(window).width();
		};

		$('div.pp_pic_holder .pp_content').animate({'height':contentHeight,'width':containerWidth},settings.animationSpeed);

		projectedTop = scrollPos['scrollTop'] + ((windowHeight/2) - (containerHeight/2));
		if(projectedTop < 0) projectedTop = 0 + $('div.ppt').height();

		// Resize the holder
		$('div.pp_pic_holder').animate({
			'top': projectedTop,
			'left': ((windowWidth/2) - (containerWidth/2)),
			'width': containerWidth
		},settings.animationSpeed,function(){
			$('#fullResImage').attr({
				'width':width,
				'height':height
			});

			$('div.pp_pic_holder').width(containerWidth);
			$('div.pp_pic_holder .hoverContainer').height(height).width(width);

			// Fade the new image
			$('div.pp_pic_holder #full_res').fadeIn(settings.animationSpeed);

			// Show the nav elements
			_shownav();
		
			// Fade the resizing link if the image is resized
			if(resized) $('a.pp_expand,a.pp_contract').fadeIn(settings.animationSpeed);
		});
	};

	function changePicture(direction){
		if(direction == 'previous') {
			arrayPosition--;
			setPosition--;
		}else{
			arrayPosition++;
			setPosition++;
		};

		// Allow the resizing of the images
		if(!doresize) doresize = true;

		// Fade out the current picture
		$('div.pp_pic_holder .hoverContainer,div.pp_pic_holder .pp_details').fadeOut(settings.animationSpeed);
		$('div.pp_pic_holder #full_res').fadeOut(settings.animationSpeed,function(){
			$('.pp_loaderIcon').show();
		
			// Preload the image
			_preload();
		});

		_hideTitle();
		$('a.pp_expand,a.pp_contract').fadeOut(settings.animationSpeed,function(){
			$(this).removeClass('pp_contract').addClass('pp_expand');
		});
	};

	function close(){
		$('div.pp_pic_holder,div.ppt').fadeOut(settings.animationSpeed, function(){
			$('div.pp_overlay').fadeOut(settings.animationSpeed, function(){
				$('div.pp_overlay,div.pp_pic_holder,div.ppt').remove();
			
				// To fix the bug with IE select boxes
				if($.browser.msie && $.browser.version == 6){
					$('select').css('visibility','visible');
				};
			});
		});
	};

	function _checkPosition(){
		// If at the end, hide the next link
		if(setPosition == setCount) {
			$('div.pp_pic_holder a.pp_next').css('visibility','hidden');
			$('div.pp_pic_holder a.pp_arrow_next').addClass('disabled').unbind('click');
		}else{ 
			$('div.pp_pic_holder a.pp_next').css('visibility','visible');
			$('div.pp_pic_holder a.pp_arrow_next.disabled').removeClass('disabled').bind('click',function(){
				changePicture('next');
				return false;
			});
		};
	
		// If at the beginning, hide the previous link
		if(setPosition == 1) {
			$('div.pp_pic_holder a.pp_previous').css('visibility','hidden');
			$('div.pp_pic_holder a.pp_arrow_previous').addClass('disabled').unbind('click');
		}else{
			$('div.pp_pic_holder a.pp_previous').css('visibility','visible');
			$('div.pp_pic_holder a.pp_arrow_previous.disabled').removeClass('disabled').bind('click',function(){
				changePicture('previous');
				return false;
			});
		};
	
		// Change the current picture text
		$('div.pp_pic_holder p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);
	
		var $c = (isSet) ? $(imagesArray[arrayPosition]) : $(caller);

		if($c.attr('title')){
			$('div.pp_pic_holder .pp_description').show().html(unescape($c.attr('title')));
		}else{
			$('div.pp_pic_holder .pp_description').hide().text('');
		};
	
		if($c.find('img').attr('alt') && settings.showTitle){
			hasTitle = true;
			$('div.ppt .ppt_content').html(unescape($c.find('img').attr('alt')));
		}else{
			hasTitle = false;
		};
	};

	function _fitToViewport(width,height){
		hasBeenResized = false;
	
		$('div.pp_pic_holder .pp_details').width(width); /* To have the correct height */
		$('div.pp_pic_holder .pp_details p.pp_description').width(width - parseFloat($('div.pp_pic_holder a.pp_close').css('width'))); /* So it doesn't overlap the button */
	
		// Get the container size, to resize the holder to the right dimensions
		contentHeight = height + parseFloat($('div.pp_pic_holder .pp_details').height()) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-top')) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-bottom'));
		contentWidth = width;
		containerHeight = height + parseFloat($('div.ppt').height()) + parseFloat($('div.pp_pic_holder .pp_top').height()) + parseFloat($('div.pp_pic_holder .pp_bottom').height());
		containerWidth = width + settings.padding;
	
		// Define them in case there's no resize needed
		imageWidth = width;
		imageHeight = height;

		if($.browser.opera) {
			windowHeight = window.innerHeight;
			windowWidth = window.innerWidth;
		}else{
			windowHeight = $(window).height();
			windowWidth = $(window).width();
		};
	
		if( ((containerWidth > windowWidth) || (containerHeight > windowHeight)) && doresize && settings.allowresize) {
			hasBeenResized = true;
		
			if((containerWidth > windowWidth) && (containerHeight > windowHeight)){
				// Get the original geometry and calculate scales
				var xscale =  (containerWidth + 200) / windowWidth;
				var yscale = (containerHeight + 200) / windowHeight;
			}else{
				// Get the original geometry and calculate scales
				var xscale = windowWidth / containerWidth;
				var yscale = windowHeight / containerHeight;
			}

			// Recalculate new size with default ratio
			if (yscale<xscale){
				imageWidth = Math.round(width * yscale * 0.9);
				imageHeight = Math.round(height * yscale * 0.9);
			} else {
				imageWidth = Math.round(width * xscale * 0.9);
				imageHeight = Math.round(height * xscale * 0.9);
			};
		
			// Define the new dimensions
			contentHeight = imageHeight + parseFloat($('div.pp_pic_holder .pp_details').height()) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-top')) + parseFloat($('div.pp_pic_holder .pp_details').css('margin-bottom'));
			contentWidth = imageWidth;
			containerHeight = imageHeight + parseFloat($('div.ppt').height()) + parseFloat($('div.pp_pic_holder .pp_top').height()) + parseFloat($('div.pp_pic_holder .pp_bottom').height());
			containerWidth = imageWidth + settings.padding;
		
			$('div.pp_pic_holder .pp_details').width(contentWidth); /* To have the correct height */
			$('div.pp_pic_holder .pp_details p.pp_description').width(contentWidth - parseFloat($('div.pp_pic_holder a.pp_close').css('width'))); /* So it doesn't overlap the button */
		};

		return {
			width:imageWidth,
			height:imageHeight,
			containerHeight:containerHeight,
			containerWidth:containerWidth,
			contentHeight:contentHeight,
			contentWidth:contentWidth,
			resized:hasBeenResized
		};
	};

	function _centerPicture(){
		//Make sure the gallery is open
		if($('div.pp_pic_holder').size() > 0){
		
			var scrollPos = _getScroll();
		
			if($.browser.opera) {
				windowHeight = window.innerHeight;
				windowWidth = window.innerWidth;
			}else{
				windowHeight = $(window).height();
				windowWidth = $(window).width();
			};
		
			if(doresize) {
				projectedTop = (windowHeight/2) + scrollPos['scrollTop'] - ($('div.pp_pic_holder').height()/2);
				if(projectedTop < 0) projectedTop = 0 + $('div.ppt').height();
				
				$('div.pp_pic_holder').css({
					'top': projectedTop,
					'left': (windowWidth/2) + scrollPos['scrollLeft'] - ($('div.pp_pic_holder').width()/2)
				});
		
				$('div.ppt').css({
					'top' : $('div.pp_pic_holder').offset().top - $('div.ppt').height(),
					'left' : $('div.pp_pic_holder').offset().left + (settings.padding/2)
				});
			};
		};
	};

	function _shownav(){
		if(isSet) $('div.pp_pic_holder .hoverContainer').fadeIn(settings.animationSpeed);
		$('div.pp_pic_holder .pp_details').fadeIn(settings.animationSpeed);

		_showTitle();
	};

	function _showTitle(){
		if(settings.showTitle && hasTitle){
			$('div.ppt').css({
				'top' : $('div.pp_pic_holder').offset().top - 22,
				'left' : $('div.pp_pic_holder').offset().left + (settings.padding/2),
				'display' : 'none'
			});
		
			$('div.ppt div.ppt_content').css('width','auto');
		
			if($('div.ppt').width() > $('div.pp_pic_holder').width()){
				$('div.ppt div.ppt_content').css('width',$('div.pp_pic_holder').width() - (settings.padding * 2));
			}else{
				$('div.ppt div.ppt_content').css('width','');
			};
		
			$('div.ppt').fadeIn(settings.animationSpeed);
		};
	};

	function _hideTitle() {
		$('div.ppt').fadeOut(settings.animationSpeed);
	};

	function _preload(){
		// Hide the next/previous links if on first or last images.
		_checkPosition();
	
		// Set the new image
		imgPreloader = new Image();
	
		// Preload the neighbour images
		nextImage = new Image();
		if(isSet && setPosition > setCount) nextImage.src = $(imagesArray[arrayPosition + 1]).attr('href');
		prevImage = new Image();
		if(isSet && imagesArray[arrayPosition - 1]) prevImage.src = $(imagesArray[arrayPosition - 1]).attr('href');

		$('div.pp_pic_holder .pp_content').css('overflow','hidden');
	
		if(isSet) {
			$('div.pp_pic_holder #fullResImage').attr('src',$(imagesArray[arrayPosition]).attr('href'));
		}else{
			$('div.pp_pic_holder #fullResImage').attr('src',$(caller).attr('href'));
		};

		imgPreloader.onload = function(){
			var correctSizes = _fitToViewport(imgPreloader.width,imgPreloader.height);
			imgPreloader.width = correctSizes['width'];
			imgPreloader.height = correctSizes['height'];
		
			// Need that small delay for the anim to be nice
			setTimeout('showimage(imgPreloader.width,imgPreloader.height,'+correctSizes["containerWidth"]+','+correctSizes["containerHeight"]+','+correctSizes["contentHeight"]+','+correctSizes["contentWidth"]+','+correctSizes["resized"]+')',500);
		};
	
		(isSet) ? imgPreloader.src = $(imagesArray[arrayPosition]).attr('href') : imgPreloader.src = $(caller).attr('href');
	};

	function _getScroll(){
		scrollTop = window.pageYOffset || document.documentElement.scrollTop || 0;
		scrollLeft = window.pageXOffset || document.documentElement.scrollLeft || 0;
		return {scrollTop:scrollTop,scrollLeft:scrollLeft};
	};

	function _resizeOverlay() {
		$('div.pp_overlay').css({
			'height':$(document).height(),
			'width':$(window).width()
		});
	};

	function _buildOverlay(){
	
		// Build the background overlay div
		backgroundDiv = "<div class='pp_overlay'></div>";
		$('body').append(backgroundDiv);
		$('div.pp_overlay').css('height',$(document).height()).bind('click',function(){
			close();
		});
	
		// Basic HTML for the picture holder
		pictureHolder = '<div class="pp_pic_holder"><div class="pp_top"><div class="pp_left"></div><div class="pp_middle"></div><div class="pp_right"></div></div><div class="pp_content"><a href="#" class="pp_expand" title="Expand the image">Expand</a><div class="pp_loaderIcon"></div><div class="hoverContainer"><a class="pp_next" href="#">next</a><a class="pp_previous" href="#">previous</a></div><div id="full_res"><img id="fullResImage" src="" /></div><div class="pp_details clearfix"><a class="pp_close" href="#">Close</a><p class="pp_description"></p><div class="pp_nav"><a href="#" class="pp_arrow_previous">Previous</a><p class="currentTextHolder">0'+settings.counter_separator_label+'0</p><a href="#" class="pp_arrow_next">Next</a></div></div></div><div class="pp_bottom"><div class="pp_left"></div><div class="pp_middle"></div><div class="pp_right"></div></div></div>';
	
		// Basic html for the title holder
		titleHolder = '<div class="ppt"><div class="ppt_left"></div><div class="ppt_content"></div><div class="ppt_right"></div></div>';

		$('body').append(pictureHolder).append(titleHolder);

		$('.pp_pic_holder,.titleHolder').css({'opacity': 0});
		$('.pp_pic_holder,.ppt').addClass(settings.theme);
		$('a.pp_close').bind('click',function(){ close(); return false; });
		$('a.pp_expand').bind('click',function(){
		
			// Expand the image
			if($(this).hasClass('pp_expand')){
				$(this).removeClass('pp_expand').addClass('pp_contract');
				doresize = false;
			}else{
				$(this).removeClass('pp_contract').addClass('pp_expand');
				doresize = true;
			};
		
			_hideTitle();
			$('div.pp_pic_holder .hoverContainer,div.pp_pic_holder #full_res').fadeOut(settings.animationSpeed);
			$('div.pp_pic_holder .pp_details').fadeOut(settings.animationSpeed,function(){
				_preload();
			});
		
			return false;
		});
	
		$('.pp_pic_holder .pp_previous,.pp_pic_holder .pp_arrow_previous').bind('click',function(){
			changePicture('previous');
			return false;
		});
	
		$('.pp_pic_holder .pp_next,.pp_pic_holder .pp_arrow_next').bind('click',function(){
			changePicture('next');
			return false;
		});

		$('.hoverContainer').css({
			'margin-left': settings.padding/2
		});
	
		// If it's not a set, hide the links
		if(!isSet) {
			$('.hoverContainer,.pp_nav').hide();
		};


		// To fix the bug with IE select boxes
		if($.browser.msie && $.browser.version == 6){
			$('body').addClass('ie6');
			$('select').css('visibility','hidden');
		};

		// Then fade it in
		$('div.pp_overlay').css('opacity',0).fadeTo(settings.animationSpeed,settings.opacity, function(){
			$('div.pp_pic_holder').css('opacity',0).fadeIn(settings.animationSpeed,function(){
				// To fix an IE bug
				$('div.pp_pic_holder').attr('style','left:'+$('div.pp_pic_holder').css('left')+';top:'+$('div.pp_pic_holder').css('top')+';');
			});
		});
	};
};
)(jQuery);