"Photoswipe"
Bootstrap 4.1.1 Snippet by SANTANU CHOWDHURY

<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> <script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> <!------ Include the above in your HEAD tag ----------> <!-- Core CSS file --> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.1/photoswipe.min.css"> <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.1/default-skin/default-skin.min.css"> <!-- Core JS file --> <script src="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.1/photoswipe.min.js"></script> <!-- UI JS file --> <script src="https://cdnjs.cloudflare.com/ajax/libs/photoswipe/4.1.1/photoswipe-ui-default.min.js"></script> <div class="container"> <div class="my-gallery" itemscope itemtype="http://schema.org/ImageGallery"> <figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject"> <a href="https://farm3.staticflickr.com/2567/5697107145_a4c2eaa0cd_o.jpg" itemprop="contentUrl" data-size="1024x1024"> <img src="https://farm3.staticflickr.com/2567/5697107145_3c27ff3cd1_m.jpg" itemprop="thumbnail" alt="Image description" /> </a> <figcaption itemprop="caption description">Image caption 1</figcaption> </figure> <figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject"> <a href="https://farm2.staticflickr.com/1043/5186867718_06b2e9e551_b.jpg" itemprop="contentUrl" data-size="964x1024"> <img src="https://farm2.staticflickr.com/1043/5186867718_06b2e9e551_m.jpg" itemprop="thumbnail" alt="Image description" /> </a> <figcaption itemprop="caption description">Image caption 2</figcaption> </figure> <figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject"> <a href="https://farm7.staticflickr.com/6175/6176698785_7dee72237e_b.jpg" itemprop="contentUrl" data-size="1024x683"> <img src="https://farm7.staticflickr.com/6175/6176698785_7dee72237e_m.jpg" itemprop="thumbnail" alt="Image description" /> </a> <figcaption itemprop="caption description">Image caption 3</figcaption> </figure> <figure itemprop="associatedMedia" itemscope itemtype="http://schema.org/ImageObject"> <a href="https://farm6.staticflickr.com/5023/5578283926_822e5e5791_b.jpg" itemprop="contentUrl" data-size="1024x768"> <img src="https://farm6.staticflickr.com/5023/5578283926_822e5e5791_m.jpg" itemprop="thumbnail" alt="Image description" /> </a> <figcaption itemprop="caption description">Image caption 4</figcaption> </figure> </div> </div> <!-- Root element of PhotoSwipe. Must have class pswp. --> <div class="pswp" tabindex="-1" role="dialog" aria-hidden="true"> <div class="pswp__bg"></div> <!-- Slides wrapper with overflow:hidden. --> <div class="pswp__scroll-wrap"> <!-- Container that holds slides. PhotoSwipe keeps only 3 slides in 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"> <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> <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>
.my-gallery { width: 100%; float: left; } .my-gallery img { width: 100%; height: auto; } .my-gallery figure { display: block; float: left; margin: 0 5px 5px 0; width: 150px; } .my-gallery figcaption { display: none; }
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'), 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}; } }; // 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('.my-gallery');

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