title = "gallery detail"
url = "/gallery/:slug"
layout = "default"
is_hidden = 0

[viewGallery]
slug = "{{ :slug }}"
loop = 1
closeOnScroll = 0
closeOnVerticalDrag = 0
escKey = 0
pinchToClose = 0
captionEl = 1
swipeWhileZoom = 0
maxSpreadZoom = 2
getDoubleTapZoom = 1
shareEl = 0
zoomEl = 1
fullscreenEl = 1
arrowEl = 1
counterEl = 1
==
{% content 'top.htm' pagename='Images of Gallery' %}
<div class="photo-swipe-images">
    <div class="photo-swipe-gallery" itemscope itemtype="http://schema.org/ImageGallery">

        {% for image in gallery.images %}
        <figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject">
            <a href="{{ image.getPath }}" itemprop="contentUrl" data-size="{{ image.width }}x{{ image.height }}">
                <img src="{{ image.getThumb(600, 400, 'crop') }}" itemprop="thumbnail" alt="Image description"/>
            </a>
            <figcaption itemprop="caption description">{{ image.title }}</figcaption>
        </figure>
        {% endfor %}

    </div>
</div>


<!-- Root element of PhotoSwipe. Must have class pswp. -->
<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">

    <!-- Background of PhotoSwipe.
         It's a separate element as animating opacity is faster than rgba(). -->
    <div class="pswp__bg"></div>

    <!-- Slides wrapper with overflow:hidden. -->
    <div class="pswp__scroll-wrap">

        <!-- Container that holds slides.
            PhotoSwipe keeps only 3 of them in the DOM to save memory.
            Don't modify these 3 pswp__item elements, data is added later on. -->
        <div class="pswp__container">
            <div class="pswp__item"></div>
            <div class="pswp__item"></div>
            <div class="pswp__item"></div>
        </div>

        <!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
        <div class="pswp__ui pswp__ui--hidden">

            <div class="pswp__top-bar">

                <!--  Controls are self-explanatory. Order can be changed. -->

                <div class="pswp__counter"></div>

                <button class="pswp__button pswp__button--close" title="Close (Esc)"></button>

                <button class="pswp__button pswp__button--share" title="Share"></button>

                <button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>

                <button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>

                <!-- Preloader demo http://codepen.io/dimsemenov/pen/yyBWoR -->
                <!-- element will get class pswp__preloader--active when preloader is running -->
                <div class="pswp__preloader">
                    <div class="pswp__preloader__icn">
                        <div class="pswp__preloader__cut">
                            <div class="pswp__preloader__donut"></div>
                        </div>
                    </div>
                </div>
            </div>

            <div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
                <div class="pswp__share-tooltip"></div>
            </div>

            <button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
            </button>

            <button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
            </button>

            <div class="pswp__caption">
                <div class="pswp__caption__center"></div>
            </div>

        </div>

    </div>

</div>

{% put photoswipe %}
<script>
    var initPhotoSwipeFromDOM = function(gallerySelector) {

        // parse slide data (url, title, size ...) from DOM elements
        // (children of gallerySelector)
        var parseThumbnailElements = function(el) {
            var thumbElements = el.childNodes,
                numNodes = thumbElements.length,
                items = [],
                figureEl,
                linkEl,
                size,
                item;

            for(var i = 0; i < numNodes; i++) {

                figureEl = thumbElements[i]; // <figure> element

                // include only element nodes
                if(figureEl.nodeType !== 1) {
                    continue;
                }

                linkEl = figureEl.children[0]; // <a> element

                size = linkEl.getAttribute('data-size').split('x');

                // create slide object
                item = {
                    src: linkEl.getAttribute('href'),
                    w: parseInt(size[0], 0),
                    h: parseInt(size[1], 0)
                };



                if(figureEl.children.length > 1) {
                    // <figcaption> content
                    item.title = figureEl.children[1].innerHTML;
                }

                if(linkEl.children.length > 0) {
                    // <img> thumbnail element, retrieving thumbnail url
                    item.msrc = linkEl.children[0].getAttribute('src');
                }

                item.el = figureEl; // save link to element for getThumbBoundsFn
                items.push(item);
            }

            return items;
        };

        // find nearest parent element
        var closest = function closest(el, fn) {
            return el && ( fn(el) ? el : closest(el.parentNode, fn) );
        };

        // triggers when user clicks on thumbnail
        var onThumbnailsClick = function(e) {
            e = e || window.event;
            e.preventDefault ? e.preventDefault() : e.returnValue = false;

            var eTarget = e.target || e.srcElement;

            // find root element of slide
            var clickedListItem = closest(eTarget, function(el) {
                return (el.tagName && el.tagName.toUpperCase() === 'FIGURE');
            });

            if(!clickedListItem) {
                return;
            }

            // find index of clicked item by looping through all child nodes
            // alternatively, you may define index via data- attribute
            var clickedGallery = clickedListItem.parentNode,
                childNodes = clickedListItem.parentNode.childNodes,
                numChildNodes = childNodes.length,
                nodeIndex = 0,
                index;

            for (var i = 0; i < numChildNodes; i++) {
                if(childNodes[i].nodeType !== 1) {
                    continue;
                }

                if(childNodes[i] === clickedListItem) {
                    index = nodeIndex;
                    break;
                }
                nodeIndex++;
            }



            if(index >= 0) {
                // open PhotoSwipe if valid index found
                openPhotoSwipe( index, clickedGallery );
            }
            return false;
        };

        // parse picture index and gallery index from URL (#&pid=1&gid=2)
        var photoswipeParseHash = function() {
            var hash = window.location.hash.substring(1),
                params = {};

            if(hash.length < 5) {
                return params;
            }

            var vars = hash.split('&');
            for (var i = 0; i < vars.length; i++) {
                if(!vars[i]) {
                    continue;
                }
                var pair = vars[i].split('=');
                if(pair.length < 2) {
                    continue;
                }
                params[pair[0]] = pair[1];
            }

            if(params.gid) {
                params.gid = parseInt(params.gid, 10);
            }

            return params;
        };

        var openPhotoSwipe = function(index, galleryElement, disableAnimation, fromURL) {
            var pswpElement = document.querySelectorAll('.pswp')[0],
                gallery,
                options,
                items;

            items = parseThumbnailElements(galleryElement);

            // define options (if needed)
            options = {

                // define gallery index (for URL)
                galleryUID: galleryElement.getAttribute('data-pswp-uid'),
                getThumbBoundsFn: function(index) {
                    // See Options -> getThumbBoundsFn section of documentation for more info
                    var thumbnail = items[index].el.getElementsByTagName('img')[0], // find thumbnail
                        pageYScroll = window.pageYOffset || document.documentElement.scrollTop,
                        rect = thumbnail.getBoundingClientRect();

                    return {x:rect.left, y:rect.top + pageYScroll, w:rect.width};
                },
                allowPanToNext: {{swipeWhileZoom}},
                maxSpreadZoom: {{ maxSpreadZoom}},
                getDoubleTapZoom: function(isMouseClick, item) {

                    // isMouseClick          - true if mouse, false if double-tap
                    // item                  - slide object that is zoomed, usually current
                    // item.initialZoomLevel - initial scale ratio of image
                    //                         e.g. if viewport is 700px and image is 1400px,
                    //                              initialZoomLevel will be 0.5

                    if(isMouseClick) {

                        // is mouse click on image or zoom icon

                        // zoom to original
                        return {{tapZoomLevel}};

                        // e.g. for 1400px image:
                        // 0.5 - zooms to 700px
                        // 2   - zooms to 2800px

                    } else {

                        // is double-tap

                        // zoom to original if initial zoom is less than 0.7x,
                        // otherwise to 1.5x, to make sure that double-tap gesture always zooms image
                        return item.initialZoomLevel < 0.7 ? 2 : {{tapZoomLevel}};
                    }
                },
                escKey: {{escKey}},
                loop: {{loop}},
                closeOnScroll: {{closeOnScroll}},
                closeOnVerticalDrag: {{closeOnVerticalDrag}},
                pinchToClose: {{pinchToClose}},
                zoomEl: {{zoomEl}},
                shareEl: {{shareEl}},
                arrowEl: {{arrowEl}},
                fullscreenEl: {{fullscreenEl}},
                counterEl: {{counterEl}},
                captionEl: {{captionEl}},
                hideAnimationDuration: 333,
            };

            // PhotoSwipe opened from URL
            if(fromURL) {
                if(options.galleryPIDs) {
                    // parse real index when custom PIDs are used
                    // http://photoswipe.com/documentation/faq.html#custom-pid-in-url
                    for(var j = 0; j < items.length; j++) {
                        if(items[j].pid == index) {
                            options.index = j;
                            break;
                        }
                    }
                } else {
                    // in URL indexes start from 1
                    options.index = parseInt(index, 10) - 1;
                }
            } else {
                options.index = parseInt(index, 10);
            }

            // exit if index not found
            if( isNaN(options.index) ) {
                return;
            }

            if(disableAnimation) {
                options.showAnimationDuration = 0;
            }

            // Pass data to PhotoSwipe and initialize it
            gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);
            gallery.init();
        };

        // loop through all gallery elements and bind events
        var galleryElements = document.querySelectorAll( gallerySelector );

        for(var i = 0, l = galleryElements.length; i < l; i++) {
            galleryElements[i].setAttribute('data-pswp-uid', i+1);
            galleryElements[i].onclick = onThumbnailsClick;
        }

        // Parse URL and open gallery if it contains #&pid=3&gid=1
        var hashData = photoswipeParseHash();
        if(hashData.pid && hashData.gid) {
            openPhotoSwipe( hashData.pid ,  galleryElements[ hashData.gid - 1 ], true, true );
        }
    };

    // execute above function
    initPhotoSwipeFromDOM('.photo-swipe-gallery');
</script>
{% endput %}