/* ------------------------------------------------------------------------
	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 */
            onBeforeImageLoad: null, /* called before loading the picture */
            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() {

            //Call the onBeforeImageLoad callback if any
            if (settings.onBeforeImageLoad)
                settings.onBeforeImageLoad($(imagesArray[arrayPosition]));
            
            // 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">'
            + '<div class="pp_closewrapper"><div class="pp_nav"><a href="#" class="pp_arrow_previous"></a><p class="currentTextHolder">0' + settings.counter_separator_label + '0</p><a href="#" class="pp_arrow_next"></a></div><a class="pp_close" href="#"></a></div><div class="pp_descriptionwrapper"><p class="pp_description"></p></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);