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(function($) { "use strict"; 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], 10), h: parseInt(size[1], 10) }; 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'), }; // 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); } }; initPhotoSwipeFromDOM('.pxp-single-property-gallery'); $('.pxp-sp-gallery-btn').click(function() { $('.pxp-single-property-gallery figure:first-child').click(); }); })(jQuery);
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