socialbase-1.1.0/assets/js/photoswipe.min.js

(function ($) {
  var initPhotoSwipeFromDOM = function initPhotoSwipeFromDOM(gallerySelector) {
    var parseThumbnailElements = function parseThumbnailElements(el) {
      var thumbElements = el.childNodes,
          numNodes = thumbElements.length,
          items = [],
          el,
          childElements,
          thumbnailEl,
          size,
          item;

      for (var i = 0; i < numNodes; i++) {
        el = thumbElements[i]; // include only element nodes

        if (el.nodeType !== 1) {
          continue;
        }

        childElements = el.children;
        size = el.getAttribute('data-size').split('x'); // create slide object

        item = {
          src: el.getAttribute('href'),
          w: parseInt(size[0], 10),
          h: parseInt(size[1], 10),
          author: el.getAttribute('data-author')
        };
        item.el = el; // save link to element for getThumbBoundsFn

        if (childElements.length > 0) {
          item.msrc = childElements[0].getAttribute('src'); // thumbnail url

          if (childElements.length > 1) {
            item.title = childElements[1].innerHTML; // caption (contents of figure)
          }
        }

        var mediumSrc = el.getAttribute('data-med');

        if (mediumSrc) {
          size = el.getAttribute('data-med-size').split('x'); // "medium-sized" image

          item.m = {
            src: mediumSrc,
            w: parseInt(size[0], 10),
            h: parseInt(size[1], 10)
          };
        } // original image


        item.o = {
          src: item.src,
          w: item.w,
          h: item.h
        };
        items.push(item);
      }

      return items;
    }; // find nearest parent element


    var closest = function closest(el, fn) {
      return el && (fn(el) ? el : closest(el.parentNode, fn));
    };

    var onThumbnailsClick = function onThumbnailsClick(e) {
      e = e || window.event;
      e.preventDefault ? e.preventDefault() : e.returnValue = false;
      var eTarget = e.target || e.srcElement;
      var clickedListItem = closest(eTarget, function (el) {
        return el.tagName === 'A';
      });

      if (!clickedListItem) {
        return;
      }

      var clickedGallery = clickedListItem.parentNode;
      var 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) {
        openPhotoSwipe(index, clickedGallery);
      }

      return false;
    };

    var photoswipeParseHash = function photoswipeParseHash() {
      var hash = window.location.hash.substring(1),
          params = {};

      if (hash.length < 5) {
        // pid=1
        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 openPhotoSwipe(index, galleryElement, disableAnimation, fromURL) {
      // Remove all pswp element from tree and paste it before body close tag(one time).
      if ($('.iframe-container .pswp').length) {
        pswpElement = $('.pswp').first();
        $('.pswp').each(function () {
          $(this).remove();
        });
        pswpElement.appendTo('body');
      }

      var pswpElement = document.querySelectorAll('.pswp')[0],
          gallery,
          options,
          items;
      items = parseThumbnailElements(galleryElement); // define options (if needed)

      options = {
        galleryUID: galleryElement.getAttribute('data-pswp-uid'),
        getThumbBoundsFn: function getThumbBoundsFn(index) {
          // See Options->getThumbBoundsFn section of docs for more info
          var thumbnail = items[index].el.children[0],
              pageYScroll = window.pageYOffset || document.documentElement.scrollTop,
              rect = thumbnail.getBoundingClientRect();
          return {
            x: rect.left,
            y: rect.top + pageYScroll,
            w: rect.width
          };
        },
        addCaptionHTMLFn: function addCaptionHTMLFn(item, captionEl, isFake) {
          if (!item.title) {
            captionEl.children[0].innerText = '';
            return false;
          }

          captionEl.children[0].innerHTML = item.title + '<br/><small>Photo: ' + item.author + '</small>';
          return true;
        }
      };

      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 {
          options.index = parseInt(index, 10) - 1;
        }
      } else {
        options.index = parseInt(index, 10);
      } // exit if index not found


      if (isNaN(options.index)) {
        return;
      }

      var radios = document.getElementsByName('gallery-style');

      for (var i = 0, length = radios.length; i < length; i++) {
        if (radios[i].checked) {
          if (radios[i].id == 'radio-all-controls') {} else if (radios[i].id == 'radio-minimal-black') {
            options.mainClass = 'pswp--minimal--dark';
            options.barsSize = {
              top: 0,
              bottom: 0
            };
            options.captionEl = false;
            options.fullscreenEl = false;
            options.shareEl = false;
            options.bgOpacity = 0.85;
            options.tapToClose = true;
            options.tapToToggleControls = false;
          }

          break;
        }
      }

      if (disableAnimation) {
        options.showAnimationDuration = 0;
      } // Pass data to PhotoSwipe and initialize it


      gallery = new PhotoSwipe(pswpElement, PhotoSwipeUI_Default, items, options); // see: http://photoswipe.com/documentation/responsive-images.html

      var realViewportWidth,
          useLargeImages = false,
          firstResize = true,
          imageSrcWillChange;
      gallery.listen('beforeResize', function () {
        var dpiRatio = window.devicePixelRatio ? window.devicePixelRatio : 1;
        dpiRatio = Math.min(dpiRatio, 2.5);
        realViewportWidth = gallery.viewportSize.x * dpiRatio;

        if (realViewportWidth >= 1200 || !gallery.likelyTouchDevice && realViewportWidth > 800 || screen.width > 1200) {
          if (!useLargeImages) {
            useLargeImages = true;
            imageSrcWillChange = true;
          }
        } else {
          if (useLargeImages) {
            useLargeImages = false;
            imageSrcWillChange = true;
          }
        }

        if (imageSrcWillChange && !firstResize) {
          gallery.invalidateCurrItems();
        }

        if (firstResize) {
          firstResize = false;
        }

        imageSrcWillChange = false;
      });
      gallery.listen('gettingData', function (index, item) {
        if (useLargeImages) {
          item.src = item.o.src;
          item.w = item.o.w;
          item.h = item.o.h;
        } else {
          item.src = item.m.src;
          item.w = item.m.w;
          item.h = item.m.h;
        }
      });
      gallery.init();
    }; // select all gallery elements


    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);
    }
  };

  Drupal.behaviors.photoSwipe = {
    attach: function attach(context, settings) {
      initPhotoSwipeFromDOM('.photoswipe-gallery');
    }
  };
})(jQuery);