/* ------------------------------------------------------------------------
    Class: prettyPhoto
    Use: Lightbox clone for jQuery
    Author: Stephane Caron (http://www.no-margin-for-errors.com)
    Version: 2.2.7
------------------------------------------------------------------------- */

var $pp_pic_holder;
var $ppt;

(function($) {
    $.fn.prettyPhoto = function(settings) {
        // global Variables
        var doresize = true;
        var imagesArray = [];
        var setPosition = 0; /* Position in the set */
    
        // Global elements
        var $caller;
        
        var $scrollPos = _getScroll();
    
        $(window).scroll(function(){ _centerPicture(); $scrollPos = _getScroll(); });
        $(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') == $caller.attr('href')){
                        setPosition = setCount;
                        arrayPosition = i;
                    };
                };
            };
        
            _buildOverlay();

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

            // Position the picture in the center of the viewing area
            _centerPicture();
        
            $('#pp_full_res').hide();
            $pp_pic_holder.find('.pp_loaderIcon').show();
        };
    
        showimage = function(width,height,containerWidth,containerHeight,contentHeight,contentWidth,resized){
            $('.pp_loaderIcon').hide();

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

            $pp_pic_holder.find('.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
            $pp_pic_holder.animate({
                'top': projectedTop,
                'left': ((windowWidth/2) - (containerWidth/2)),
                'width': containerWidth
            },settings.animationSpeed,function(){
                $pp_pic_holder.width(containerWidth);
                $pp_pic_holder.find('.pp_hoverContainer,#fullResImage').height(height).width(width);

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

                // Show the nav elements
                _shownav($pp_pic_holder,$ppt);
            
                // 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
            $pp_pic_holder.find('.pp_hoverContainer,.pp_details').fadeOut(settings.animationSpeed);
            $pp_pic_holder.find('#pp_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');
                    };
                });
            });
            
            doresize = true;
        };
    
        function _checkPosition(){
            // If at the end, hide the next link
            if(setPosition == setCount) {
                $pp_pic_holder.find('a.pp_next').css('visibility','hidden');
                $pp_pic_holder.find('a.pp_arrow_next').addClass('disabled').unbind('click');
            }else{ 
                $pp_pic_holder.find('a.pp_next').css('visibility','visible');
                $pp_pic_holder.find('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) {
                $pp_pic_holder.find('a.pp_previous').css('visibility','hidden');
                $pp_pic_holder.find('a.pp_arrow_previous').addClass('disabled').unbind('click');
            }else{
                $pp_pic_holder.find('a.pp_previous').css('visibility','visible');
                $pp_pic_holder.find('a.pp_arrow_previous.disabled').removeClass('disabled').bind('click',function(){
                    changePicture('previous');
                    return false;
                });
            };
        
            // Change the current picture text
            $pp_pic_holder.find('p.currentTextHolder').text(setPosition + settings.counter_separator_label + setCount);
        
            $caller = (isSet) ? $(imagesArray[arrayPosition]) : $caller;

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

            windowHeight = $(window).height();
            windowWidth = $(window).width();
        
            if( ((containerWidth > windowWidth) || (containerHeight > windowHeight)) && doresize && settings.allowresize) {
                hasBeenResized = true;
                notFitting = true;
            
                while (notFitting){
                    if((containerWidth > windowWidth)){
                        imageWidth = (windowWidth - 200);
                        imageHeight = (height/width) * imageWidth;
                    }else if((containerHeight > windowHeight)){
                        imageHeight = (windowHeight - 200);
                        imageWidth = (width/height) * imageHeight;
                    }else{
                        notFitting = false;
                    };

                    containerHeight = imageHeight;
                    containerWidth = imageWidth;
                };
            
                // 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(){
            if ($pp_pic_holder){ if($pp_pic_holder.size() == 0){ return; }}else{ return; }; //Make sure the gallery is open

            if($.browser.opera) {
                windowHeight = window.innerHeight;
                windowWidth = window.innerWidth;
            }else{
                windowHeight = $(window).height();
                windowWidth = $(window).width();
            };
        
            if(doresize) {
                $pHeight = $pp_pic_holder.height();
                $pWidth = $pp_pic_holder.width();
                $tHeight = $ppt.height();
                $offset = $pp_pic_holder.offset();
                
                projectedTop = (windowHeight/2) + $scrollPos['scrollTop'] - ($pHeight/2);
                if(projectedTop < 0) projectedTop = 0 + $tHeight;
                
                $pp_pic_holder.css({
                    'top': projectedTop,
                    'left': (windowWidth/2) + $scrollPos['scrollLeft'] - ($pWidth/2)
                });
        
                $ppt.css({
                    'top' : $offset.top - $tHeight,
                    'left' : $offset.left + (settings.padding/2)
                });
            };
        };
    
        function _shownav(){
            if(isSet) $pp_pic_holder.find('.pp_hoverContainer').fadeIn(settings.animationSpeed);
            $pp_pic_holder.find('.pp_details').fadeIn(settings.animationSpeed);
            _showTitle($pp_pic_holder,$ppt);
        };
    
        function _showTitle(){
            if(settings.showTitle && hasTitle){
                $ppt.css({
                    'top' : $pp_pic_holder.offset().top - 22,
                    'left' : $pp_pic_holder.offset().left + (settings.padding/2),
                    'display' : 'none'
                });
            
                $ppt.find('div.ppt_content').css('width','auto');
            
                if($ppt.width() > $pp_pic_holder.width()){
                    $ppt.find('div.ppt_content').css('width',$pp_pic_holder.width() - (settings.padding * 2));
                }else{
                    $ppt.find('div.ppt_content').css('width','');
                };
            
                $ppt.fadeIn(settings.animationSpeed);
            };
        };
    
        function _hideTitle() {
            $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');

//            $pp_pic_holder.find('.pp_content').css('overflow','hidden');
            $pp_pic_holder.find('#fullResImage').attr('src',$caller.attr('href'));

            imgPreloader.onload = function(){
                var correctSizes = _fitToViewport(imgPreloader.width,imgPreloader.height);
                imgPreloader.width = correctSizes['width'];
                imgPreloader.height = correctSizes['height'];
                showimage(imgPreloader.width,imgPreloader.height,correctSizes["containerWidth"],correctSizes["containerHeight"],correctSizes["contentHeight"],correctSizes["contentWidth"],correctSizes["resized"]);
            };
        
            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(){
            toInject = "";
            
            // Build the background overlay div
            toInject += "<div class='pp_overlay'></div>";
            
            // Basic HTML for the picture holder
            toInject += '<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="pp_hoverContainer"><a class="pp_next" href="#">next</a><a class="pp_previous" href="#">previous</a></div><div id="pp_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
            toInject += '<div class="ppt"><div class="ppt_left"></div><div class="ppt_content"></div><div class="ppt_right"></div></div>';
            
            $('body').append(toInject);
            
            // Set my global selectors
            $pp_pic_holder = $('.pp_pic_holder');
            $ppt = $('.ppt');
            
            $('div.pp_overlay').css('height',$(document).height()).bind('click',function(){
                close();
            });

            $pp_pic_holder.css({'opacity': 0}).addClass(settings.theme);

            $('a.pp_close').bind('click',function(){ close(); return false; });

            $('a.pp_expand').bind('click',function(){                
                $this = $(this);
                
                // 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();
                
                $pp_pic_holder.find('.pp_hoverContainer, #pp_full_res, .pp_details').fadeOut(settings.animationSpeed,function(){
                    _preload();
                });
        
                return false;    
            });
        
            $pp_pic_holder.find('.pp_previous, .pp_arrow_previous').bind('click',function(){
                changePicture('previous');
                return false;
            });
        
            $pp_pic_holder.find('.pp_next, .pp_arrow_next').bind('click',function(){
                changePicture('next');
                return false;
            });

            $pp_pic_holder.find('.pp_hoverContainer').css({
                'margin-left': settings.padding/2
            });
        
            // If it's not a set, hide the links
            if(!isSet) {
                $pp_pic_holder.find('.pp_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(){
                $pp_pic_holder.css('opacity',0).fadeIn(settings.animationSpeed,function(){
                    $pp_pic_holder.attr('style','left:'+$pp_pic_holder.css('left')+';top:'+$pp_pic_holder.css('top')+';');
                    _preload();
                });
            });
        };
    };
})(jQuery);