EQ2EMU-Labs/js/miscellaneous/lightgallery/lightgallery.bundle.js

/*!
 * justifiedGallery - v3.7.0
 * http://miromannino.github.io/Justified-Gallery/
 * Copyright (c) 2018 Miro Mannino
 * Licensed under the MIT license.
 */
(function (factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module.
    define(['jquery'], factory);
  } else if (typeof module === 'object' && module.exports) {
    // Node/CommonJS
    module.exports = function( root, jQuery ) {
      if ( jQuery === undefined ) {
        // require('jQuery') returns a factory that requires window to
        // build a jQuery instance, we normalize how we use modules
        // that require this pattern but the window provided is a noop
        // if it's defined (how jquery works)
        if ( typeof window !== 'undefined' ) {
          jQuery = require('jquery');
        }
        else {
          jQuery = require('jquery')(root);
        }
      }
      factory(jQuery);
      return jQuery;
    };
  } else {
    // Browser globals
    factory(jQuery);
  }
}(function ($) {

  /**
   * Justified Gallery controller constructor
   *
   * @param $gallery the gallery to build
   * @param settings the settings (the defaults are in JustifiedGallery.defaults)
   * @constructor
   */
  var JustifiedGallery = function ($gallery, settings) {
  
    this.settings = settings;
    this.checkSettings();
  
    this.imgAnalyzerTimeout = null;
    this.entries = null;
    this.buildingRow = {
      entriesBuff : [],
      width : 0,
      height : 0,
      aspectRatio : 0
    };
    this.lastFetchedEntry = null;
    this.lastAnalyzedIndex = -1;
    this.yield = {
      every : 2, // do a flush every n flushes (must be greater than 1)
      flushed : 0 // flushed rows without a yield
    };
    this.border = settings.border >= 0 ? settings.border : settings.margins;
    this.maxRowHeight = this.retrieveMaxRowHeight();
    this.suffixRanges = this.retrieveSuffixRanges();
    this.offY = this.border;
    this.rows = 0;
    this.spinner = {
      phase : 0,
      timeSlot : 150,
      $el : $('<div class="spinner"><span></span><span></span><span></span></div>'),
      intervalId : null
    };
    this.scrollBarOn = false;
    this.checkWidthIntervalId = null;
    this.galleryWidth = $gallery.width();
    this.$gallery = $gallery;
  
  };
  
  /** @returns {String} the best suffix given the width and the height */
  JustifiedGallery.prototype.getSuffix = function (width, height) {
    var longestSide, i;
    longestSide = (width > height) ? width : height;
    for (i = 0; i < this.suffixRanges.length; i++) {
      if (longestSide <= this.suffixRanges[i]) {
        return this.settings.sizeRangeSuffixes[this.suffixRanges[i]];
      }
    }
    return this.settings.sizeRangeSuffixes[this.suffixRanges[i - 1]];
  };
  
  /**
   * Remove the suffix from the string
   *
   * @returns {string} a new string without the suffix
   */
  JustifiedGallery.prototype.removeSuffix = function (str, suffix) {
    return str.substring(0, str.length - suffix.length);
  };
  
  /**
   * @returns {boolean} a boolean to say if the suffix is contained in the str or not
   */
  JustifiedGallery.prototype.endsWith = function (str, suffix) {
    return str.indexOf(suffix, str.length - suffix.length) !== -1;
  };
  
  /**
   * Get the used suffix of a particular url
   *
   * @param str
   * @returns {String} return the used suffix
   */
  JustifiedGallery.prototype.getUsedSuffix = function (str) {
    for (var si in this.settings.sizeRangeSuffixes) {
      if (this.settings.sizeRangeSuffixes.hasOwnProperty(si)) {
        if (this.settings.sizeRangeSuffixes[si].length === 0) continue;
        if (this.endsWith(str, this.settings.sizeRangeSuffixes[si])) return this.settings.sizeRangeSuffixes[si];
      }
    }
    return '';
  };
  
  /**
   * Given an image src, with the width and the height, returns the new image src with the
   * best suffix to show the best quality thumbnail.
   *
   * @returns {String} the suffix to use
   */
  JustifiedGallery.prototype.newSrc = function (imageSrc, imgWidth, imgHeight, image) {
    var newImageSrc;
  
    if (this.settings.thumbnailPath) {
      newImageSrc = this.settings.thumbnailPath(imageSrc, imgWidth, imgHeight, image);
    } else {
      var matchRes = imageSrc.match(this.settings.extension);
      var ext = (matchRes !== null) ? matchRes[0] : '';
      newImageSrc = imageSrc.replace(this.settings.extension, '');
      newImageSrc = this.removeSuffix(newImageSrc, this.getUsedSuffix(newImageSrc));
      newImageSrc += this.getSuffix(imgWidth, imgHeight) + ext;
    }
  
    return newImageSrc;
  };
  
  /**
   * Shows the images that is in the given entry
   *
   * @param $entry the entry
   * @param callback the callback that is called when the show animation is finished
   */
  JustifiedGallery.prototype.showImg = function ($entry, callback) {
    if (this.settings.cssAnimation) {
      $entry.addClass('entry-visible');
      if (callback) callback();
    } else {
      $entry.stop().fadeTo(this.settings.imagesAnimationDuration, 1.0, callback);
      $entry.find(this.settings.imgSelector).stop().fadeTo(this.settings.imagesAnimationDuration, 1.0, callback);
    }
  };
  
  /**
   * Extract the image src form the image, looking from the 'safe-src', and if it can't be found, from the
   * 'src' attribute. It saves in the image data the 'jg.originalSrc' field, with the extracted src.
   *
   * @param $image the image to analyze
   * @returns {String} the extracted src
   */
  JustifiedGallery.prototype.extractImgSrcFromImage = function ($image) {
    var imageSrc = (typeof $image.data('safe-src') !== 'undefined') ? $image.data('safe-src') : $image.attr('src');
    $image.data('jg.originalSrc', imageSrc);
    return imageSrc;
  };
  
  /** @returns {jQuery} the image in the given entry */
  JustifiedGallery.prototype.imgFromEntry = function ($entry) {
    var $img = $entry.find(this.settings.imgSelector);
    return $img.length === 0 ? null : $img;
  };
  
  /** @returns {jQuery} the caption in the given entry */
  JustifiedGallery.prototype.captionFromEntry = function ($entry) {
    var $caption = $entry.find('> .caption');
    return $caption.length === 0 ? null : $caption;
  };
  
  /**
   * Display the entry
   *
   * @param {jQuery} $entry the entry to display
   * @param {int} x the x position where the entry must be positioned
   * @param y the y position where the entry must be positioned
   * @param imgWidth the image width
   * @param imgHeight the image height
   * @param rowHeight the row height of the row that owns the entry
   */
  JustifiedGallery.prototype.displayEntry = function ($entry, x, y, imgWidth, imgHeight, rowHeight) {
    $entry.width(imgWidth);
    $entry.height(rowHeight);
    $entry.css('top', y);
    $entry.css('left', x);
  
    var $image = this.imgFromEntry($entry);
    if ($image !== null) {
      $image.css('width', imgWidth);
      $image.css('height', imgHeight);
      $image.css('margin-left', - imgWidth / 2);
      $image.css('margin-top', - imgHeight / 2);
  
      // Image reloading for an high quality of thumbnails
      var imageSrc = $image.attr('src');
      var newImageSrc = this.newSrc(imageSrc, imgWidth, imgHeight, $image[0]);
  
      $image.one('error', function () {
        $image.attr('src', $image.data('jg.originalSrc')); //revert to the original thumbnail, we got it.
      });
  
      var loadNewImage = function () {
        if (imageSrc !== newImageSrc) { //load the new image after the fadeIn
          $image.attr('src', newImageSrc);
        }
      };
  
      if ($entry.data('jg.loaded') === 'skipped') {
        this.onImageEvent(imageSrc, $.proxy(function() {
          this.showImg($entry, loadNewImage);
          $entry.data('jg.loaded', true);
        }, this));
      } else {
        this.showImg($entry, loadNewImage);
      }
  
    } else {
      this.showImg($entry);
    }
  
    this.displayEntryCaption($entry);
  };
  
  /**
   * Display the entry caption. If the caption element doesn't exists, it creates the caption using the 'alt'
   * or the 'title' attributes.
   *
   * @param {jQuery} $entry the entry to process
   */
  JustifiedGallery.prototype.displayEntryCaption = function ($entry) {
    var $image = this.imgFromEntry($entry);
    if ($image !== null && this.settings.captions) {
      var $imgCaption = this.captionFromEntry($entry);
  
      // Create it if it doesn't exists
      if ($imgCaption === null) {
        var caption = $image.attr('alt');
        if (!this.isValidCaption(caption)) caption = $entry.attr('title');
        if (this.isValidCaption(caption)) { // Create only we found something
          $imgCaption = $('<div class="caption">' + caption + '</div>');
          $entry.append($imgCaption);
          $entry.data('jg.createdCaption', true);
        }
      }
  
      // Create events (we check again the $imgCaption because it can be still inexistent)
      if ($imgCaption !== null) {
        if (!this.settings.cssAnimation) $imgCaption.stop().fadeTo(0, this.settings.captionSettings.nonVisibleOpacity);
        this.addCaptionEventsHandlers($entry);
      }
    } else {
      this.removeCaptionEventsHandlers($entry);
    }
  };
  
  /**
   * Validates the caption
   *
   * @param caption The caption that should be validated
   * @return {boolean} Validation result
   */
  JustifiedGallery.prototype.isValidCaption = function (caption) {
    return (typeof caption !== 'undefined' && caption.length > 0);
  };
  
  /**
   * The callback for the event 'mouseenter'. It assumes that the event currentTarget is an entry.
   * It shows the caption using jQuery (or using CSS if it is configured so)
   *
   * @param {Event} eventObject the event object
   */
  JustifiedGallery.prototype.onEntryMouseEnterForCaption = function (eventObject) {
    var $caption = this.captionFromEntry($(eventObject.currentTarget));
    if (this.settings.cssAnimation) {
      $caption.addClass('caption-visible').removeClass('caption-hidden');
    } else {
      $caption.stop().fadeTo(this.settings.captionSettings.animationDuration,
          this.settings.captionSettings.visibleOpacity);
    }
  };
  
  /**
   * The callback for the event 'mouseleave'. It assumes that the event currentTarget is an entry.
   * It hides the caption using jQuery (or using CSS if it is configured so)
   *
   * @param {Event} eventObject the event object
   */
  JustifiedGallery.prototype.onEntryMouseLeaveForCaption = function (eventObject) {
    var $caption = this.captionFromEntry($(eventObject.currentTarget));
    if (this.settings.cssAnimation) {
      $caption.removeClass('caption-visible').removeClass('caption-hidden');
    } else {
      $caption.stop().fadeTo(this.settings.captionSettings.animationDuration,
          this.settings.captionSettings.nonVisibleOpacity);
    }
  };
  
  /**
   * Add the handlers of the entry for the caption
   *
   * @param $entry the entry to modify
   */
  JustifiedGallery.prototype.addCaptionEventsHandlers = function ($entry) {
    var captionMouseEvents = $entry.data('jg.captionMouseEvents');
    if (typeof captionMouseEvents === 'undefined') {
      captionMouseEvents = {
        mouseenter: $.proxy(this.onEntryMouseEnterForCaption, this),
        mouseleave: $.proxy(this.onEntryMouseLeaveForCaption, this)
      };
      $entry.on('mouseenter', undefined, undefined, captionMouseEvents.mouseenter);
      $entry.on('mouseleave', undefined, undefined, captionMouseEvents.mouseleave);
      $entry.data('jg.captionMouseEvents', captionMouseEvents);
    }
  };
  
  /**
   * Remove the handlers of the entry for the caption
   *
   * @param $entry the entry to modify
   */
  JustifiedGallery.prototype.removeCaptionEventsHandlers = function ($entry) {
    var captionMouseEvents = $entry.data('jg.captionMouseEvents');
    if (typeof captionMouseEvents !== 'undefined') {
      $entry.off('mouseenter', undefined, captionMouseEvents.mouseenter);
      $entry.off('mouseleave', undefined, captionMouseEvents.mouseleave);
      $entry.removeData('jg.captionMouseEvents');
    }
  };
  
  /**
   * Clear the building row data to be used for a new row
   */
  JustifiedGallery.prototype.clearBuildingRow = function () {
    this.buildingRow.entriesBuff = [];
    this.buildingRow.aspectRatio = 0;
    this.buildingRow.width = 0;
  };
  
  /**
   * Justify the building row, preparing it to
   *
   * @param isLastRow
   * @returns a boolean to know if the row has been justified or not
   */
  JustifiedGallery.prototype.prepareBuildingRow = function (isLastRow) {
    var i, $entry, imgAspectRatio, newImgW, newImgH, justify = true;
    var minHeight = 0;
    var availableWidth = this.galleryWidth - 2 * this.border - (
        (this.buildingRow.entriesBuff.length - 1) * this.settings.margins);
    var rowHeight = availableWidth / this.buildingRow.aspectRatio;
    var defaultRowHeight = this.settings.rowHeight;
    var justifiable = this.buildingRow.width / availableWidth > this.settings.justifyThreshold;
  
    //Skip the last row if we can't justify it and the lastRow == 'hide'
    if (isLastRow && this.settings.lastRow === 'hide' && !justifiable) {
      for (i = 0; i < this.buildingRow.entriesBuff.length; i++) {
        $entry = this.buildingRow.entriesBuff[i];
        if (this.settings.cssAnimation)
          $entry.removeClass('entry-visible');
        else {
          $entry.stop().fadeTo(0, 0.1);
          $entry.find('> img, > a > img').fadeTo(0, 0);
        }
      }
      return -1;
    }
  
    // With lastRow = nojustify, justify if is justificable (the images will not become too big)
    if (isLastRow && !justifiable && this.settings.lastRow !== 'justify' && this.settings.lastRow !== 'hide') {
      justify = false;
  
      if (this.rows > 0) {
        defaultRowHeight = (this.offY - this.border - this.settings.margins * this.rows) / this.rows;
        justify = defaultRowHeight * this.buildingRow.aspectRatio / availableWidth > this.settings.justifyThreshold;
      }
    }
  
    for (i = 0; i < this.buildingRow.entriesBuff.length; i++) {
      $entry = this.buildingRow.entriesBuff[i];
      imgAspectRatio = $entry.data('jg.width') / $entry.data('jg.height');
  
      if (justify) {
        newImgW = (i === this.buildingRow.entriesBuff.length - 1) ? availableWidth : rowHeight * imgAspectRatio;
        newImgH = rowHeight;
      } else {
        newImgW = defaultRowHeight * imgAspectRatio;
        newImgH = defaultRowHeight;
      }
  
      availableWidth -= Math.round(newImgW);
      $entry.data('jg.jwidth', Math.round(newImgW));
      $entry.data('jg.jheight', Math.ceil(newImgH));
      if (i === 0 || minHeight > newImgH) minHeight = newImgH;
    }
  
    this.buildingRow.height = minHeight;
    return justify;
  };
  
  /**
   * Flush a row: justify it, modify the gallery height accordingly to the row height
   *
   * @param isLastRow
   */
  JustifiedGallery.prototype.flushRow = function (isLastRow) {
    var settings = this.settings;
    var $entry, buildingRowRes, offX = this.border, i;
  
    buildingRowRes = this.prepareBuildingRow(isLastRow);
    if (isLastRow && settings.lastRow === 'hide' && buildingRowRes === -1) {
      this.clearBuildingRow();
      return;
    }
  
    if(this.maxRowHeight) {
      if(this.maxRowHeight < this.buildingRow.height)  this.buildingRow.height = this.maxRowHeight;
    }
  
    //Align last (unjustified) row
    if (isLastRow && (settings.lastRow === 'center' || settings.lastRow === 'right')) {
      var availableWidth = this.galleryWidth - 2 * this.border - (this.buildingRow.entriesBuff.length - 1) * settings.margins;
  
      for (i = 0; i < this.buildingRow.entriesBuff.length; i++) {
        $entry = this.buildingRow.entriesBuff[i];
        availableWidth -= $entry.data('jg.jwidth');
      }
  
      if (settings.lastRow === 'center')
        offX += availableWidth / 2;
      else if (settings.lastRow === 'right')
        offX += availableWidth;
    }
  
    var lastEntryIdx = this.buildingRow.entriesBuff.length - 1;
    for (i = 0; i <= lastEntryIdx; i++) {
      $entry = this.buildingRow.entriesBuff[ this.settings.rtl ? lastEntryIdx - i : i ];
      this.displayEntry($entry, offX, this.offY, $entry.data('jg.jwidth'), $entry.data('jg.jheight'), this.buildingRow.height);
      offX += $entry.data('jg.jwidth') + settings.margins;
    }
  
    //Gallery Height
    this.galleryHeightToSet = this.offY + this.buildingRow.height + this.border;
    this.setGalleryTempHeight(this.galleryHeightToSet + this.getSpinnerHeight());
  
    if (!isLastRow || (this.buildingRow.height <= settings.rowHeight && buildingRowRes)) {
      //Ready for a new row
      this.offY += this.buildingRow.height + settings.margins;
      this.rows += 1;
      this.clearBuildingRow();
      this.settings.triggerEvent.call(this, 'jg.rowflush');
    }
  };
  
  
  // Scroll position not restoring: https://github.com/miromannino/Justified-Gallery/issues/221
  var galleryPrevStaticHeight = 0;
  
  JustifiedGallery.prototype.rememberGalleryHeight = function () {
    galleryPrevStaticHeight = this.$gallery.height();
    this.$gallery.height(galleryPrevStaticHeight);
  };
  
  // grow only
  JustifiedGallery.prototype.setGalleryTempHeight = function (height) {
    galleryPrevStaticHeight = Math.max(height, galleryPrevStaticHeight);
    this.$gallery.height(galleryPrevStaticHeight);
  };
  
  JustifiedGallery.prototype.setGalleryFinalHeight = function (height) {
    galleryPrevStaticHeight = height;
    this.$gallery.height(height);
  };
  
  /**
   * @returns {boolean} a boolean saying if the scrollbar is active or not
   */
  function hasScrollBar() {
    return $("body").height() > $(window).height();
  }
  
  /**
   * Checks the width of the gallery container, to know if a new justification is needed
   */
  JustifiedGallery.prototype.checkWidth = function () {
    this.checkWidthIntervalId = setInterval($.proxy(function () {
  
      // if the gallery is not currently visible, abort.
      if (!this.$gallery.is(":visible")) return;
  
      var galleryWidth = parseFloat(this.$gallery.width());
      if (hasScrollBar() === this.scrollBarOn) {
        if (Math.abs(galleryWidth - this.galleryWidth) > this.settings.refreshSensitivity) {
          this.galleryWidth = galleryWidth;
          this.rewind();
  
          this.rememberGalleryHeight();
  
          // Restart to analyze
          this.startImgAnalyzer(true);
        }
      } else {
        this.scrollBarOn = hasScrollBar();
        this.galleryWidth = galleryWidth;
      }
    }, this), this.settings.refreshTime);
  };
  
  /**
   * @returns {boolean} a boolean saying if the spinner is active or not
   */
  JustifiedGallery.prototype.isSpinnerActive = function () {
    return this.spinner.intervalId !== null;
  };
  
  /**
   * @returns {int} the spinner height
   */
  JustifiedGallery.prototype.getSpinnerHeight = function () {
    return this.spinner.$el.innerHeight();
  };
  
  /**
   * Stops the spinner animation and modify the gallery height to exclude the spinner
   */
  JustifiedGallery.prototype.stopLoadingSpinnerAnimation = function () {
    clearInterval(this.spinner.intervalId);
    this.spinner.intervalId = null;
    this.setGalleryTempHeight(this.$gallery.height() - this.getSpinnerHeight());
    this.spinner.$el.detach();
  };
  
  /**
   * Starts the spinner animation
   */
  JustifiedGallery.prototype.startLoadingSpinnerAnimation = function () {
    var spinnerContext = this.spinner;
    var $spinnerPoints = spinnerContext.$el.find('span');
    clearInterval(spinnerContext.intervalId);
    this.$gallery.append(spinnerContext.$el);
    this.setGalleryTempHeight(this.offY + this.buildingRow.height + this.getSpinnerHeight());
    spinnerContext.intervalId = setInterval(function () {
      if (spinnerContext.phase < $spinnerPoints.length) {
        $spinnerPoints.eq(spinnerContext.phase).fadeTo(spinnerContext.timeSlot, 1);
      } else {
        $spinnerPoints.eq(spinnerContext.phase - $spinnerPoints.length).fadeTo(spinnerContext.timeSlot, 0);
      }
      spinnerContext.phase = (spinnerContext.phase + 1) % ($spinnerPoints.length * 2);
    }, spinnerContext.timeSlot);
  };
  
  /**
   * Rewind the image analysis to start from the first entry.
   */
  JustifiedGallery.prototype.rewind = function () {
    this.lastFetchedEntry = null;
    this.lastAnalyzedIndex = -1;
    this.offY = this.border;
    this.rows = 0;
    this.clearBuildingRow();
  };
  
  /**
   * Update the entries searching it from the justified gallery HTML element
   *
   * @param norewind if norewind only the new entries will be changed (i.e. randomized, sorted or filtered)
   * @returns {boolean} true if some entries has been founded
   */
  JustifiedGallery.prototype.updateEntries = function (norewind) {
    var newEntries;
  
    if (norewind && this.lastFetchedEntry != null) {
      newEntries = $(this.lastFetchedEntry).nextAll(this.settings.selector).toArray();
    } else {
      this.entries = [];
      newEntries = this.$gallery.children(this.settings.selector).toArray();
    }
  
    if (newEntries.length > 0) {
  
      // Sort or randomize
      if ($.isFunction(this.settings.sort)) {
        newEntries = this.sortArray(newEntries);
      } else if (this.settings.randomize) {
        newEntries = this.shuffleArray(newEntries);
      }
      this.lastFetchedEntry = newEntries[newEntries.length - 1];
  
      // Filter
      if (this.settings.filter) {
        newEntries = this.filterArray(newEntries);
      } else {
        this.resetFilters(newEntries);
      }
  
    }
  
    this.entries = this.entries.concat(newEntries);
    return true;
  };
  
  /**
   * Apply the entries order to the DOM, iterating the entries and appending the images
   *
   * @param entries the entries that has been modified and that must be re-ordered in the DOM
   */
  JustifiedGallery.prototype.insertToGallery = function (entries) {
    var that = this;
    $.each(entries, function () {
      $(this).appendTo(that.$gallery);
    });
  };
  
  /**
   * Shuffle the array using the Fisher-Yates shuffle algorithm
   *
   * @param a the array to shuffle
   * @return the shuffled array
   */
  JustifiedGallery.prototype.shuffleArray = function (a) {
    var i, j, temp;
    for (i = a.length - 1; i > 0; i--) {
      j = Math.floor(Math.random() * (i + 1));
      temp = a[i];
      a[i] = a[j];
      a[j] = temp;
    }
    this.insertToGallery(a);
    return a;
  };
  
  /**
   * Sort the array using settings.comparator as comparator
   *
   * @param a the array to sort (it is sorted)
   * @return the sorted array
   */
  JustifiedGallery.prototype.sortArray = function (a) {
    a.sort(this.settings.sort);
    this.insertToGallery(a);
    return a;
  };
  
  /**
   * Reset the filters removing the 'jg-filtered' class from all the entries
   *
   * @param a the array to reset
   */
  JustifiedGallery.prototype.resetFilters = function (a) {
    for (var i = 0; i < a.length; i++) $(a[i]).removeClass('jg-filtered');
  };
  
  /**
   * Filter the entries considering theirs classes (if a string has been passed) or using a function for filtering.
   *
   * @param a the array to filter
   * @return the filtered array
   */
  JustifiedGallery.prototype.filterArray = function (a) {
    var settings = this.settings;
    if ($.type(settings.filter) === 'string') {
      // Filter only keeping the entries passed in the string
      return a.filter(function (el) {
        var $el = $(el);
        if ($el.is(settings.filter)) {
          $el.removeClass('jg-filtered');
          return true;
        } else {
          $el.addClass('jg-filtered').removeClass('jg-visible');
          return false;
        }
      });
    } else if ($.isFunction(settings.filter)) {
      // Filter using the passed function
      var filteredArr = a.filter(settings.filter);
      for (var i = 0; i < a.length; i++) {
        if (filteredArr.indexOf(a[i]) === -1) {
          $(a[i]).addClass('jg-filtered').removeClass('jg-visible');
        } else {
          $(a[i]).removeClass('jg-filtered');
        }
      }
      return filteredArr;
    }
  };
  
  /**
   * Destroy the Justified Gallery instance.
   *
   * It clears all the css properties added in the style attributes. We doesn't backup the original
   * values for those css attributes, because it costs (performance) and because in general one
   * shouldn't use the style attribute for an uniform set of images (where we suppose the use of
   * classes). Creating a backup is also difficult because JG could be called multiple times and
   * with different style attributes.
   */
  JustifiedGallery.prototype.destroy = function () {
    clearInterval(this.checkWidthIntervalId);
  
    $.each(this.entries, $.proxy(function(_, entry) {
      var $entry = $(entry);
  
      // Reset entry style
      $entry.css('width', '');
      $entry.css('height', '');
      $entry.css('top', '');
      $entry.css('left', '');
      $entry.data('jg.loaded', undefined);
      $entry.removeClass('jg-entry');
  
      // Reset image style
      var $img = this.imgFromEntry($entry);
      $img.css('width', '');
      $img.css('height', '');
      $img.css('margin-left', '');
      $img.css('margin-top', '');
      $img.attr('src', $img.data('jg.originalSrc'));
      $img.data('jg.originalSrc', undefined);
  
      // Remove caption
      this.removeCaptionEventsHandlers($entry);
      var $caption = this.captionFromEntry($entry);
      if ($entry.data('jg.createdCaption')) {
        // remove also the caption element (if created by jg)
        $entry.data('jg.createdCaption', undefined);
        if ($caption !== null) $caption.remove();
      } else {
        if ($caption !== null) $caption.fadeTo(0, 1);
      }
  
    }, this));
  
    this.$gallery.css('height', '');
    this.$gallery.removeClass('justified-gallery');
    this.$gallery.data('jg.controller', undefined);
  };
  
  /**
   * Analyze the images and builds the rows. It returns if it found an image that is not loaded.
   *
   * @param isForResize if the image analyzer is called for resizing or not, to call a different callback at the end
   */
  JustifiedGallery.prototype.analyzeImages = function (isForResize) {
    for (var i = this.lastAnalyzedIndex + 1; i < this.entries.length; i++) {
      var $entry = $(this.entries[i]);
      if ($entry.data('jg.loaded') === true || $entry.data('jg.loaded') === 'skipped') {
        var availableWidth = this.galleryWidth - 2 * this.border - (
            (this.buildingRow.entriesBuff.length - 1) * this.settings.margins);
        var imgAspectRatio = $entry.data('jg.width') / $entry.data('jg.height');
        if (availableWidth / (this.buildingRow.aspectRatio + imgAspectRatio) < this.settings.rowHeight) {
          this.flushRow(false);
  
          if(++this.yield.flushed >= this.yield.every) {
            this.startImgAnalyzer(isForResize);
            return;
          }
        }
  
        this.buildingRow.entriesBuff.push($entry);
        this.buildingRow.aspectRatio += imgAspectRatio;
        this.buildingRow.width += imgAspectRatio * this.settings.rowHeight;
        this.lastAnalyzedIndex = i;
  
      } else if ($entry.data('jg.loaded') !== 'error') {
        return;
      }
    }
  
    // Last row flush (the row is not full)
    if (this.buildingRow.entriesBuff.length > 0) this.flushRow(true);
  
    if (this.isSpinnerActive()) {
      this.stopLoadingSpinnerAnimation();
    }
  
    /* Stop, if there is, the timeout to start the analyzeImages.
     This is because an image can be set loaded, and the timeout can be set,
     but this image can be analyzed yet.
     */
    this.stopImgAnalyzerStarter();
  
    //On complete callback
    this.settings.triggerEvent.call(this, isForResize ? 'jg.resize' : 'jg.complete');
    this.setGalleryFinalHeight(this.galleryHeightToSet);
  };
  
  /**
   * Stops any ImgAnalyzer starter (that has an assigned timeout)
   */
  JustifiedGallery.prototype.stopImgAnalyzerStarter = function () {
    this.yield.flushed = 0;
    if (this.imgAnalyzerTimeout !== null) {
      clearTimeout(this.imgAnalyzerTimeout);
      this.imgAnalyzerTimeout = null;
    }
  };
  
  /**
   * Starts the image analyzer. It is not immediately called to let the browser to update the view
   *
   * @param isForResize specifies if the image analyzer must be called for resizing or not
   */
  JustifiedGallery.prototype.startImgAnalyzer = function (isForResize) {
    var that = this;
    this.stopImgAnalyzerStarter();
    this.imgAnalyzerTimeout = setTimeout(function () {
      that.analyzeImages(isForResize);
    }, 0.001); // we can't start it immediately due to a IE different behaviour
  };
  
  /**
   * Checks if the image is loaded or not using another image object. We cannot use the 'complete' image property,
   * because some browsers, with a 404 set complete = true.
   *
   * @param imageSrc the image src to load
   * @param onLoad callback that is called when the image has been loaded
   * @param onError callback that is called in case of an error
   */
  JustifiedGallery.prototype.onImageEvent = function (imageSrc, onLoad, onError) {
    if (!onLoad && !onError) return;
  
    var memImage = new Image();
    var $memImage = $(memImage);
    if (onLoad) {
      $memImage.one('load', function () {
        $memImage.off('load error');
        onLoad(memImage);
      });
    }
    if (onError) {
      $memImage.one('error', function() {
        $memImage.off('load error');
        onError(memImage);
      });
    }
    memImage.src = imageSrc;
  };
  
  /**
   * Init of Justified Gallery controlled
   * It analyzes all the entries starting theirs loading and calling the image analyzer (that works with loaded images)
   */
  JustifiedGallery.prototype.init = function () {
    var imagesToLoad = false, skippedImages = false, that = this;
    $.each(this.entries, function (index, entry) {
      var $entry = $(entry);
      var $image = that.imgFromEntry($entry);
  
      $entry.addClass('jg-entry');
  
      if ($entry.data('jg.loaded') !== true && $entry.data('jg.loaded') !== 'skipped') {
  
        // Link Rel global overwrite
        if (that.settings.rel !== null) $entry.attr('rel', that.settings.rel);
  
        // Link Target global overwrite
        if (that.settings.target !== null) $entry.attr('target', that.settings.target);
  
        if ($image !== null) {
  
          // Image src
          var imageSrc = that.extractImgSrcFromImage($image);
          $image.attr('src', imageSrc);
  
          /* If we have the height and the width, we don't wait that the image is loaded, but we start directly
           * with the justification */
          if (that.settings.waitThumbnailsLoad === false) {
            var width = parseFloat($image.prop('width'));
            var height = parseFloat($image.prop('height'));
            if (!isNaN(width) && !isNaN(height)) {
              $entry.data('jg.width', width);
              $entry.data('jg.height', height);
              $entry.data('jg.loaded', 'skipped');
              skippedImages = true;
              that.startImgAnalyzer(false);
              return true; // continue
            }
          }
  
          $entry.data('jg.loaded', false);
          imagesToLoad = true;
  
          // Spinner start
          if (!that.isSpinnerActive()) that.startLoadingSpinnerAnimation();
  
          that.onImageEvent(imageSrc, function (loadImg) { // image loaded
            $entry.data('jg.width', loadImg.width);
            $entry.data('jg.height', loadImg.height);
            $entry.data('jg.loaded', true);
            that.startImgAnalyzer(false);
          }, function () { // image load error
            $entry.data('jg.loaded', 'error');
            that.startImgAnalyzer(false);
          });
  
        } else {
          $entry.data('jg.loaded', true);
          $entry.data('jg.width', $entry.width() | parseFloat($entry.css('width')) | 1);
          $entry.data('jg.height', $entry.height() | parseFloat($entry.css('height')) | 1);
        }
  
      }
  
    });
  
    if (!imagesToLoad && !skippedImages) this.startImgAnalyzer(false);
    this.checkWidth();
  };
  
  /**
   * Checks that it is a valid number. If a string is passed it is converted to a number
   *
   * @param settingContainer the object that contains the setting (to allow the conversion)
   * @param settingName the setting name
   */
  JustifiedGallery.prototype.checkOrConvertNumber = function (settingContainer, settingName) {
    if ($.type(settingContainer[settingName]) === 'string') {
      settingContainer[settingName] = parseFloat(settingContainer[settingName]);
    }
  
    if ($.type(settingContainer[settingName]) === 'number') {
      if (isNaN(settingContainer[settingName])) throw 'invalid number for ' + settingName;
    } else {
      throw settingName + ' must be a number';
    }
  };
  
  /**
   * Checks the sizeRangeSuffixes and, if necessary, converts
   * its keys from string (e.g. old settings with 'lt100') to int.
   */
  JustifiedGallery.prototype.checkSizeRangesSuffixes = function () {
    if ($.type(this.settings.sizeRangeSuffixes) !== 'object') {
      throw 'sizeRangeSuffixes must be defined and must be an object';
    }
  
    var suffixRanges = [];
    for (var rangeIdx in this.settings.sizeRangeSuffixes) {
      if (this.settings.sizeRangeSuffixes.hasOwnProperty(rangeIdx)) suffixRanges.push(rangeIdx);
    }
  
    var newSizeRngSuffixes = {0: ''};
    for (var i = 0; i < suffixRanges.length; i++) {
      if ($.type(suffixRanges[i]) === 'string') {
        try {
          var numIdx = parseInt(suffixRanges[i].replace(/^[a-z]+/, ''), 10);
          newSizeRngSuffixes[numIdx] = this.settings.sizeRangeSuffixes[suffixRanges[i]];
        } catch (e) {
          throw 'sizeRangeSuffixes keys must contains correct numbers (' + e + ')';
        }
      } else {
        newSizeRngSuffixes[suffixRanges[i]] = this.settings.sizeRangeSuffixes[suffixRanges[i]];
      }
    }
  
    this.settings.sizeRangeSuffixes = newSizeRngSuffixes;
  };
  
  /**
   * check and convert the maxRowHeight setting
   * requires rowHeight to be already set
   * TODO: should be always called when only rowHeight is changed
   * @return number or null
   */
  JustifiedGallery.prototype.retrieveMaxRowHeight = function () {
    var newMaxRowHeight = null;
    var rowHeight = this.settings.rowHeight;
  
    if ($.type(this.settings.maxRowHeight) === 'string') {
      if (this.settings.maxRowHeight.match(/^[0-9]+%$/)) {
        newMaxRowHeight = rowHeight * parseFloat(this.settings.maxRowHeight.match(/^([0-9]+)%$/)[1]) / 100;
      } else {
        newMaxRowHeight = parseFloat(this.settings.maxRowHeight);
      }
    } else if ($.type(this.settings.maxRowHeight) === 'number') {
      newMaxRowHeight = this.settings.maxRowHeight;
    } else if (this.settings.maxRowHeight === false || this.settings.maxRowHeight == null) {
      return null;
    } else {
      throw 'maxRowHeight must be a number or a percentage';
    }
  
    // check if the converted value is not a number
    if (isNaN(newMaxRowHeight)) throw 'invalid number for maxRowHeight';
  
    // check values, maxRowHeight must be >= rowHeight
    if (newMaxRowHeight < rowHeight) newMaxRowHeight = rowHeight;
  
    return newMaxRowHeight;
  };
  
  /**
   * Checks the settings
   */
  JustifiedGallery.prototype.checkSettings = function () {
    this.checkSizeRangesSuffixes();
  
    this.checkOrConvertNumber(this.settings, 'rowHeight');
    this.checkOrConvertNumber(this.settings, 'margins');
    this.checkOrConvertNumber(this.settings, 'border');
  
    var lastRowModes = [
      'justify',
      'nojustify',
      'left',
      'center',
      'right',
      'hide'
    ];
    if (lastRowModes.indexOf(this.settings.lastRow) === -1) {
      throw 'lastRow must be one of: ' + lastRowModes.join(', ');
    }
  
    this.checkOrConvertNumber(this.settings, 'justifyThreshold');
    if (this.settings.justifyThreshold < 0 || this.settings.justifyThreshold > 1) {
      throw 'justifyThreshold must be in the interval [0,1]';
    }
    if ($.type(this.settings.cssAnimation) !== 'boolean') {
      throw 'cssAnimation must be a boolean';
    }
  
    if ($.type(this.settings.captions) !== 'boolean') throw 'captions must be a boolean';
    this.checkOrConvertNumber(this.settings.captionSettings, 'animationDuration');
  
    this.checkOrConvertNumber(this.settings.captionSettings, 'visibleOpacity');
    if (this.settings.captionSettings.visibleOpacity < 0 ||
        this.settings.captionSettings.visibleOpacity > 1) {
      throw 'captionSettings.visibleOpacity must be in the interval [0, 1]';
    }
  
    this.checkOrConvertNumber(this.settings.captionSettings, 'nonVisibleOpacity');
    if (this.settings.captionSettings.nonVisibleOpacity < 0 ||
        this.settings.captionSettings.nonVisibleOpacity > 1) {
      throw 'captionSettings.nonVisibleOpacity must be in the interval [0, 1]';
    }
  
    this.checkOrConvertNumber(this.settings, 'imagesAnimationDuration');
    this.checkOrConvertNumber(this.settings, 'refreshTime');
    this.checkOrConvertNumber(this.settings, 'refreshSensitivity');
    if ($.type(this.settings.randomize) !== 'boolean') throw 'randomize must be a boolean';
    if ($.type(this.settings.selector) !== 'string') throw 'selector must be a string';
  
    if (this.settings.sort !== false && !$.isFunction(this.settings.sort)) {
      throw 'sort must be false or a comparison function';
    }
  
    if (this.settings.filter !== false && !$.isFunction(this.settings.filter) &&
        $.type(this.settings.filter) !== 'string') {
      throw 'filter must be false, a string or a filter function';
    }
  };
  
  /**
   * It brings all the indexes from the sizeRangeSuffixes and it orders them. They are then sorted and returned.
   * @returns {Array} sorted suffix ranges
   */
  JustifiedGallery.prototype.retrieveSuffixRanges = function () {
    var suffixRanges = [];
    for (var rangeIdx in this.settings.sizeRangeSuffixes) {
      if (this.settings.sizeRangeSuffixes.hasOwnProperty(rangeIdx)) suffixRanges.push(parseInt(rangeIdx, 10));
    }
    suffixRanges.sort(function (a, b) { return a > b ? 1 : a < b ? -1 : 0; });
    return suffixRanges;
  };
  
  /**
   * Update the existing settings only changing some of them
   *
   * @param newSettings the new settings (or a subgroup of them)
   */
  JustifiedGallery.prototype.updateSettings = function (newSettings) {
    // In this case Justified Gallery has been called again changing only some options
    this.settings = $.extend({}, this.settings, newSettings);
    this.checkSettings();
  
    // As reported in the settings: negative value = same as margins, 0 = disabled
    this.border = this.settings.border >= 0 ? this.settings.border : this.settings.margins;
  
    this.maxRowHeight = this.retrieveMaxRowHeight();
    this.suffixRanges = this.retrieveSuffixRanges();
  };
  
  JustifiedGallery.prototype.defaults = {
    sizeRangeSuffixes: { }, /* e.g. Flickr configuration
        {
          100: '_t',  // used when longest is less than 100px
          240: '_m',  // used when longest is between 101px and 240px
          320: '_n',  // ...
          500: '',
          640: '_z',
          1024: '_b'  // used as else case because it is the last
        }
    */
    thumbnailPath: undefined, /* If defined, sizeRangeSuffixes is not used, and this function is used to determine the
    path relative to a specific thumbnail size. The function should accept respectively three arguments:
    current path, width and height */
    rowHeight: 120, // required? required to be > 0?
    maxRowHeight: false, // false or negative value to deactivate. Positive number to express the value in pixels,
                         // A string '[0-9]+%' to express in percentage (e.g. 300% means that the row height
                         // can't exceed 3 * rowHeight)
    margins: 1,
    border: -1, // negative value = same as margins, 0 = disabled, any other value to set the border
  
    lastRow: 'nojustify', // … which is the same as 'left', or can be 'justify', 'center', 'right' or 'hide'
  
    justifyThreshold: 0.90, /* if row width / available space > 0.90 it will be always justified
                             * (i.e. lastRow setting is not considered) */
    waitThumbnailsLoad: true,
    captions: true,
    cssAnimation: true,
    imagesAnimationDuration: 500, // ignored with css animations
    captionSettings: { // ignored with css animations
      animationDuration: 500,
      visibleOpacity: 0.7,
      nonVisibleOpacity: 0.0
    },
    rel: null, // rewrite the rel of each analyzed links
    target: null, // rewrite the target of all links
    extension: /\.[^.\\/]+$/, // regexp to capture the extension of an image
    refreshTime: 200, // time interval (in ms) to check if the page changes its width
    refreshSensitivity: 0, // change in width allowed (in px) without re-building the gallery
    randomize: false,
    rtl: false, // right-to-left mode
    sort: false, /*
      - false: to do not sort
      - function: to sort them using the function as comparator (see Array.prototype.sort())
    */
    filter: false, /*
      - false, null or undefined: for a disabled filter
      - a string: an entry is kept if entry.is(filter string) returns true
                  see jQuery's .is() function for further information
      - a function: invoked with arguments (entry, index, array). Return true to keep the entry, false otherwise.
                    It follows the specifications of the Array.prototype.filter() function of JavaScript.
    */
    selector: 'a, div:not(.spinner)', // The selector that is used to know what are the entries of the gallery
    imgSelector: '> img, > a > img', // The selector that is used to know what are the images of each entry
    triggerEvent: function (event) { // This is called to trigger events, the default behavior is to call $.trigger
      this.$gallery.trigger(event);  // Consider that 'this' is this set to the JustifiedGallery object, so it can
    }                                // access to fields such as $gallery, useful to trigger events with jQuery.
  };

  /**
   * Justified Gallery plugin for jQuery
   *
   * Events
   *  - jg.complete : called when all the gallery has been created
   *  - jg.resize : called when the gallery has been resized
   *  - jg.rowflush : when a new row appears
   *
   * @param arg the action (or the settings) passed when the plugin is called
   * @returns {*} the object itself
   */
  $.fn.justifiedGallery = function (arg) {
    return this.each(function (index, gallery) {

      var $gallery = $(gallery);
      $gallery.addClass('justified-gallery');

      var controller = $gallery.data('jg.controller');
      if (typeof controller === 'undefined') {
        // Create controller and assign it to the object data
        if (typeof arg !== 'undefined' && arg !== null && $.type(arg) !== 'object') {
          if (arg === 'destroy') return; // Just a call to an unexisting object
          throw 'The argument must be an object';
        }
        controller = new JustifiedGallery($gallery, $.extend({}, JustifiedGallery.prototype.defaults, arg));
        $gallery.data('jg.controller', controller);
      } else if (arg === 'norewind') {
        // In this case we don't rewind: we analyze only the latest images (e.g. to complete the last unfinished row
        // ... left to be more readable
      } else if (arg === 'destroy') {
        controller.destroy();
        return;
      } else {
        // In this case Justified Gallery has been called again changing only some options
        controller.updateSettings(arg);
        controller.rewind();
      }

      // Update the entries list
      if (!controller.updateEntries(arg === 'norewind')) return;

      // Init justified gallery
      controller.init();

    });
  };

}));
/*!
 * jQuery Mousewheel 3.1.13
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 */

(function (factory) {
    if ( typeof define === 'function' && define.amd ) {
        // AMD. Register as an anonymous module.
        define(['jquery'], factory);
    } else if (typeof exports === 'object') {
        // Node/CommonJS style for Browserify
        module.exports = factory;
    } else {
        // Browser globals
        factory(jQuery);
    }
}(function ($) {

    var toFix  = ['wheel', 'mousewheel', 'DOMMouseScroll', 'MozMousePixelScroll'],
        toBind = ( 'onwheel' in document || document.documentMode >= 9 ) ?
                    ['wheel'] : ['mousewheel', 'DomMouseScroll', 'MozMousePixelScroll'],
        slice  = Array.prototype.slice,
        nullLowestDeltaTimeout, lowestDelta;

    if ( $.event.fixHooks ) {
        for ( var i = toFix.length; i; ) {
            $.event.fixHooks[ toFix[--i] ] = $.event.mouseHooks;
        }
    }

    var special = $.event.special.mousewheel = {
        version: '3.1.12',

        setup: function() {
            if ( this.addEventListener ) {
                for ( var i = toBind.length; i; ) {
                    this.addEventListener( toBind[--i], handler, false );
                }
            } else {
                this.onmousewheel = handler;
            }
            // Store the line height and page height for this particular element
            $.data(this, 'mousewheel-line-height', special.getLineHeight(this));
            $.data(this, 'mousewheel-page-height', special.getPageHeight(this));
        },

        teardown: function() {
            if ( this.removeEventListener ) {
                for ( var i = toBind.length; i; ) {
                    this.removeEventListener( toBind[--i], handler, false );
                }
            } else {
                this.onmousewheel = null;
            }
            // Clean up the data we added to the element
            $.removeData(this, 'mousewheel-line-height');
            $.removeData(this, 'mousewheel-page-height');
        },

        getLineHeight: function(elem) {
            var $elem = $(elem),
                $parent = $elem['offsetParent' in $.fn ? 'offsetParent' : 'parent']();
            if (!$parent.length) {
                $parent = $('body');
            }
            return parseInt($parent.css('fontSize'), 10) || parseInt($elem.css('fontSize'), 10) || 16;
        },

        getPageHeight: function(elem) {
            return $(elem).height();
        },

        settings: {
            adjustOldDeltas: true, // see shouldAdjustOldDeltas() below
            normalizeOffset: true  // calls getBoundingClientRect for each event
        }
    };

    $.fn.extend({
        mousewheel: function(fn) {
            return fn ? this.bind('mousewheel', fn) : this.trigger('mousewheel');
        },

        unmousewheel: function(fn) {
            return this.unbind('mousewheel', fn);
        }
    });


    function handler(event) {
        var orgEvent   = event || window.event,
            args       = slice.call(arguments, 1),
            delta      = 0,
            deltaX     = 0,
            deltaY     = 0,
            absDelta   = 0,
            offsetX    = 0,
            offsetY    = 0;
        event = $.event.fix(orgEvent);
        event.type = 'mousewheel';

        // Old school scrollwheel delta
        if ( 'detail'      in orgEvent ) { deltaY = orgEvent.detail * -1;      }
        if ( 'wheelDelta'  in orgEvent ) { deltaY = orgEvent.wheelDelta;       }
        if ( 'wheelDeltaY' in orgEvent ) { deltaY = orgEvent.wheelDeltaY;      }
        if ( 'wheelDeltaX' in orgEvent ) { deltaX = orgEvent.wheelDeltaX * -1; }

        // Firefox < 17 horizontal scrolling related to DOMMouseScroll event
        if ( 'axis' in orgEvent && orgEvent.axis === orgEvent.HORIZONTAL_AXIS ) {
            deltaX = deltaY * -1;
            deltaY = 0;
        }

        // Set delta to be deltaY or deltaX if deltaY is 0 for backwards compatabilitiy
        delta = deltaY === 0 ? deltaX : deltaY;

        // New school wheel delta (wheel event)
        if ( 'deltaY' in orgEvent ) {
            deltaY = orgEvent.deltaY * -1;
            delta  = deltaY;
        }
        if ( 'deltaX' in orgEvent ) {
            deltaX = orgEvent.deltaX;
            if ( deltaY === 0 ) { delta  = deltaX * -1; }
        }

        // No change actually happened, no reason to go any further
        if ( deltaY === 0 && deltaX === 0 ) { return; }

        // Need to convert lines and pages to pixels if we aren't already in pixels
        // There are three delta modes:
        //   * deltaMode 0 is by pixels, nothing to do
        //   * deltaMode 1 is by lines
        //   * deltaMode 2 is by pages
        if ( orgEvent.deltaMode === 1 ) {
            var lineHeight = $.data(this, 'mousewheel-line-height');
            delta  *= lineHeight;
            deltaY *= lineHeight;
            deltaX *= lineHeight;
        } else if ( orgEvent.deltaMode === 2 ) {
            var pageHeight = $.data(this, 'mousewheel-page-height');
            delta  *= pageHeight;
            deltaY *= pageHeight;
            deltaX *= pageHeight;
        }

        // Store lowest absolute delta to normalize the delta values
        absDelta = Math.max( Math.abs(deltaY), Math.abs(deltaX) );

        if ( !lowestDelta || absDelta < lowestDelta ) {
            lowestDelta = absDelta;

            // Adjust older deltas if necessary
            if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
                lowestDelta /= 40;
            }
        }

        // Adjust older deltas if necessary
        if ( shouldAdjustOldDeltas(orgEvent, absDelta) ) {
            // Divide all the things by 40!
            delta  /= 40;
            deltaX /= 40;
            deltaY /= 40;
        }

        // Get a whole, normalized value for the deltas
        delta  = Math[ delta  >= 1 ? 'floor' : 'ceil' ](delta  / lowestDelta);
        deltaX = Math[ deltaX >= 1 ? 'floor' : 'ceil' ](deltaX / lowestDelta);
        deltaY = Math[ deltaY >= 1 ? 'floor' : 'ceil' ](deltaY / lowestDelta);

        // Normalise offsetX and offsetY properties
        if ( special.settings.normalizeOffset && this.getBoundingClientRect ) {
            var boundingRect = this.getBoundingClientRect();
            offsetX = event.clientX - boundingRect.left;
            offsetY = event.clientY - boundingRect.top;
        }

        // Add information to the event object
        event.deltaX = deltaX;
        event.deltaY = deltaY;
        event.deltaFactor = lowestDelta;
        event.offsetX = offsetX;
        event.offsetY = offsetY;
        // Go ahead and set deltaMode to 0 since we converted to pixels
        // Although this is a little odd since we overwrite the deltaX/Y
        // properties with normalized deltas.
        event.deltaMode = 0;

        // Add event and delta to the front of the arguments
        args.unshift(event, delta, deltaX, deltaY);

        // Clearout lowestDelta after sometime to better
        // handle multiple device types that give different
        // a different lowestDelta
        // Ex: trackpad = 3 and mouse wheel = 120
        if (nullLowestDeltaTimeout) { clearTimeout(nullLowestDeltaTimeout); }
        nullLowestDeltaTimeout = setTimeout(nullLowestDelta, 200);

        return ($.event.dispatch || $.event.handle).apply(this, args);
    }

    function nullLowestDelta() {
        lowestDelta = null;
    }

    function shouldAdjustOldDeltas(orgEvent, absDelta) {
        // If this is an older event and the delta is divisable by 120,
        // then we are assuming that the browser is treating this as an
        // older mouse wheel event and that we should divide the deltas
        // by 40 to try and get a more usable deltaFactor.
        // Side note, this actually impacts the reported scroll distance
        // in older browsers and can cause scrolling to be slower than native.
        // Turn this off by setting $.event.special.mousewheel.settings.adjustOldDeltas to false.
        return special.settings.adjustOldDeltas && orgEvent.type === 'mousewheel' && absDelta % 120 === 0;
    }

}));

(function() {
    'use strict';

    var defaults = {

        mode: 'lg-slide',

        // Ex : 'ease'
        cssEasing: 'ease',

        //'for jquery animation'
        easing: 'linear',
        speed: 600,
        height: '100%',
        width: '100%',
        addClass: '',
        startClass: 'lg-start-zoom',
        backdropDuration: 150,
        hideBarsDelay: 6000,

        useLeft: false,

        closable: true,
        loop: true,
        escKey: true,
        keyPress: true,
        controls: true,
        slideEndAnimatoin: true,
        hideControlOnEnd: false,
        mousewheel: true,

        getCaptionFromTitleOrAlt: true,

        // .lg-item || '.lg-sub-html'
        appendSubHtmlTo: '.lg-sub-html',

        subHtmlSelectorRelative: false,

        /**
         * @desc number of preload slides
         * will exicute only after the current slide is fully loaded.
         *
         * @ex you clicked on 4th image and if preload = 1 then 3rd slide and 5th
         * slide will be loaded in the background after the 4th slide is fully loaded..
         * if preload is 2 then 2nd 3rd 5th 6th slides will be preloaded.. ... ...
         *
         */
        preload: 1,
        showAfterLoad: true,
        selector: '',
        selectWithin: '',
        nextHtml: '',
        prevHtml: '',

        // 0, 1
        index: false,

        iframeMaxWidth: '100%',

        download: true,
        counter: true,
        appendCounterTo: '.lg-toolbar',

        swipeThreshold: 50,
        enableSwipe: true,
        enableDrag: true,

        dynamic: false,
        dynamicEl: [],
        galleryId: 1
    };

    function Plugin(element, options) {

        // Current lightGallery element
        this.el = element;

        // Current jquery element
        this.$el = $(element);

        // lightGallery settings
        this.s = $.extend({}, defaults, options);

        // When using dynamic mode, ensure dynamicEl is an array
        if (this.s.dynamic && this.s.dynamicEl !== 'undefined' && this.s.dynamicEl.constructor === Array && !this.s.dynamicEl.length) {
            throw ('When using dynamic mode, you must also define dynamicEl as an Array.');
        }

        // lightGallery modules
        this.modules = {};

        // false when lightgallery complete first slide;
        this.lGalleryOn = false;

        this.lgBusy = false;

        // Timeout function for hiding controls;
        this.hideBartimeout = false;

        // To determine browser supports for touch events;
        this.isTouch = ('ontouchstart' in document.documentElement);

        // Disable hideControlOnEnd if sildeEndAnimation is true
        if (this.s.slideEndAnimatoin) {
            this.s.hideControlOnEnd = false;
        }

        // Gallery items
        if (this.s.dynamic) {
            this.$items = this.s.dynamicEl;
        } else {
            if (this.s.selector === 'this') {
                this.$items = this.$el;
            } else if (this.s.selector !== '') {
                if (this.s.selectWithin) {
                    this.$items = $(this.s.selectWithin).find(this.s.selector);
                } else {
                    this.$items = this.$el.find($(this.s.selector));
                }
            } else {
                this.$items = this.$el.children();
            }
        }

        // .lg-item
        this.$slide = '';

        // .lg-outer
        this.$outer = '';

        this.init();

        return this;
    }

    Plugin.prototype.init = function() {

        var _this = this;

        // s.preload should not be more than $item.length
        if (_this.s.preload > _this.$items.length) {
            _this.s.preload = _this.$items.length;
        }

        // if dynamic option is enabled execute immediately
        var _hash = window.location.hash;
        if (_hash.indexOf('lg=' + this.s.galleryId) > 0) {

            _this.index = parseInt(_hash.split('&slide=')[1], 10);

            $('body').addClass('lg-from-hash');
            if (!$('body').hasClass('lg-on')) {
                setTimeout(function() {
                    _this.build(_this.index);
                });

                $('body').addClass('lg-on');
            }
        }

        if (_this.s.dynamic) {

            _this.$el.trigger('onBeforeOpen.lg');

            _this.index = _this.s.index || 0;

            // prevent accidental double execution
            if (!$('body').hasClass('lg-on')) {
                setTimeout(function() {
                    _this.build(_this.index);
                    $('body').addClass('lg-on');
                });
            }
        } else {

            // Using different namespace for click because click event should not unbind if selector is same object('this')
            _this.$items.on('click.lgcustom', function(event) {

                // For IE8
                try {
                    event.preventDefault();
                    event.preventDefault();
                } catch (er) {
                    event.returnValue = false;
                }

                _this.$el.trigger('onBeforeOpen.lg');

                _this.index = _this.s.index || _this.$items.index(this);

                // prevent accidental double execution
                if (!$('body').hasClass('lg-on')) {
                    _this.build(_this.index);
                    $('body').addClass('lg-on');
                }
            });
        }

    };

    Plugin.prototype.build = function(index) {

        var _this = this;

        _this.structure();

        // module constructor
        $.each($.fn.lightGallery.modules, function(key) {
            _this.modules[key] = new $.fn.lightGallery.modules[key](_this.el);
        });

        // initiate slide function
        _this.slide(index, false, false, false);

        if (_this.s.keyPress) {
            _this.keyPress();
        }

        if (_this.$items.length > 1) {

            _this.arrow();

            setTimeout(function() {
                _this.enableDrag();
                _this.enableSwipe();
            }, 50);

            if (_this.s.mousewheel) {
                _this.mousewheel();
            }
        } else {
            _this.$slide.on('click.lg', function() {
                _this.$el.trigger('onSlideClick.lg');
            });
        }

        _this.counter();

        _this.closeGallery();

        _this.$el.trigger('onAfterOpen.lg');

        // Hide controllers if mouse doesn't move for some period
        _this.$outer.on('mousemove.lg click.lg touchstart.lg', function() {

            _this.$outer.removeClass('lg-hide-items');

            clearTimeout(_this.hideBartimeout);

            // Timeout will be cleared on each slide movement also
            _this.hideBartimeout = setTimeout(function() {
                _this.$outer.addClass('lg-hide-items');
            }, _this.s.hideBarsDelay);

        });

        _this.$outer.trigger('mousemove.lg');

    };

    Plugin.prototype.structure = function() {
        var list = '';
        var controls = '';
        var i = 0;
        var subHtmlCont = '';
        var template;
        var _this = this;

        $('body').append('<div class="lg-backdrop"></div>');
        $('.lg-backdrop').css('transition-duration', this.s.backdropDuration + 'ms');

        // Create gallery items
        for (i = 0; i < this.$items.length; i++) {
            list += '<div class="lg-item"></div>';
        }

        // Create controlls
        if (this.s.controls && this.$items.length > 1) {
            controls = '<div class="lg-actions">' +
                '<button class="lg-prev lg-icon">' + this.s.prevHtml + '</button>' +
                '<button class="lg-next lg-icon">' + this.s.nextHtml + '</button>' +
                '</div>';
        }

        if (this.s.appendSubHtmlTo === '.lg-sub-html') {
            subHtmlCont = '<div class="lg-sub-html"></div>';
        }

        template = '<div class="lg-outer ' + this.s.addClass + ' ' + this.s.startClass + '">' +
            '<div class="lg" style="width:' + this.s.width + '; height:' + this.s.height + '">' +
            '<div class="lg-inner">' + list + '</div>' +
            '<div class="lg-toolbar lg-group">' +
            '<span class="lg-close lg-icon"></span>' +
            '</div>' +
            controls +
            subHtmlCont +
            '</div>' +
            '</div>';

        $('body').append(template);
        this.$outer = $('.lg-outer');
        this.$slide = this.$outer.find('.lg-item');

        if (this.s.useLeft) {
            this.$outer.addClass('lg-use-left');

            // Set mode lg-slide if use left is true;
            this.s.mode = 'lg-slide';
        } else {
            this.$outer.addClass('lg-use-css3');
        }

        // For fixed height gallery
        _this.setTop();
        $(window).on('resize.lg orientationchange.lg', function() {
            setTimeout(function() {
                _this.setTop();
            }, 100);
        });

        // add class lg-current to remove initial transition
        this.$slide.eq(this.index).addClass('lg-current');

        // add Class for css support and transition mode
        if (this.doCss()) {
            this.$outer.addClass('lg-css3');
        } else {
            this.$outer.addClass('lg-css');

            // Set speed 0 because no animation will happen if browser doesn't support css3
            this.s.speed = 0;
        }

        this.$outer.addClass(this.s.mode);

        if (this.s.enableDrag && this.$items.length > 1) {
            this.$outer.addClass('lg-grab');
        }

        if (this.s.showAfterLoad) {
            this.$outer.addClass('lg-show-after-load');
        }

        if (this.doCss()) {
            var $inner = this.$outer.find('.lg-inner');
            $inner.css('transition-timing-function', this.s.cssEasing);
            $inner.css('transition-duration', this.s.speed + 'ms');
        }

        setTimeout(function() {
            $('.lg-backdrop').addClass('in');
        });

        setTimeout(function() {
            _this.$outer.addClass('lg-visible');
        }, this.s.backdropDuration);

        if (this.s.download) {
            this.$outer.find('.lg-toolbar').append('<a id="lg-download" target="_blank" download class="lg-download lg-icon"></a>');
        }

        // Store the current scroll top value to scroll back after closing the gallery..
        this.prevScrollTop = $(window).scrollTop();

    };

    // For fixed height gallery
    Plugin.prototype.setTop = function() {
        if (this.s.height !== '100%') {
            var wH = $(window).height();
            var top = (wH - parseInt(this.s.height, 10)) / 2;
            var $lGallery = this.$outer.find('.lg');
            if (wH >= parseInt(this.s.height, 10)) {
                $lGallery.css('top', top + 'px');
            } else {
                $lGallery.css('top', '0px');
            }
        }
    };

    // Find css3 support
    Plugin.prototype.doCss = function() {
        // check for css animation support
        var support = function() {
            var transition = ['transition', 'MozTransition', 'WebkitTransition', 'OTransition', 'msTransition', 'KhtmlTransition'];
            var root = document.documentElement;
            var i = 0;
            for (i = 0; i < transition.length; i++) {
                if (transition[i] in root.style) {
                    return true;
                }
            }
        };

        if (support()) {
            return true;
        }

        return false;
    };

    /**
     *  @desc Check the given src is video
     *  @param {String} src
     *  @return {Object} video type
     *  Ex:{ youtube  :  ["//www.youtube.com/watch?v=c0asJgSyxcY", "c0asJgSyxcY"] }
     */
    Plugin.prototype.isVideo = function(src, index) {

        var html;
        if (this.s.dynamic) {
            html = this.s.dynamicEl[index].html;
        } else {
            html = this.$items.eq(index).attr('data-html');
        }

        if (!src) {
            if(html) {
                return {
                    html5: true
                };
            } else {
                console.error('lightGallery :- data-src is not pvovided on slide item ' + (index + 1) + '. Please make sure the selector property is properly configured. More info - http://sachinchoolur.github.io/lightGallery/demos/html-markup.html');
                return false;
            }
        }

        var youtube = src.match(/\/\/(?:www\.)?youtu(?:\.be|be\.com|be-nocookie\.com)\/(?:watch\?v=|embed\/)?([a-z0-9\-\_\%]+)/i);
        var vimeo = src.match(/\/\/(?:www\.)?vimeo.com\/([0-9a-z\-_]+)/i);
        var dailymotion = src.match(/\/\/(?:www\.)?dai.ly\/([0-9a-z\-_]+)/i);
        var vk = src.match(/\/\/(?:www\.)?(?:vk\.com|vkontakte\.ru)\/(?:video_ext\.php\?)(.*)/i);

        if (youtube) {
            return {
                youtube: youtube
            };
        } else if (vimeo) {
            return {
                vimeo: vimeo
            };
        } else if (dailymotion) {
            return {
                dailymotion: dailymotion
            };
        } else if (vk) {
            return {
                vk: vk
            };
        }
    };

    /**
     *  @desc Create image counter
     *  Ex: 1/10
     */
    Plugin.prototype.counter = function() {
        if (this.s.counter) {
            $(this.s.appendCounterTo).append('<div id="lg-counter"><span id="lg-counter-current">' + (parseInt(this.index, 10) + 1) + '</span> / <span id="lg-counter-all">' + this.$items.length + '</span></div>');
        }
    };

    /**
     *  @desc add sub-html into the slide
     *  @param {Number} index - index of the slide
     */
    Plugin.prototype.addHtml = function(index) {
        var subHtml = null;
        var subHtmlUrl;
        var $currentEle;
        if (this.s.dynamic) {
            if (this.s.dynamicEl[index].subHtmlUrl) {
                subHtmlUrl = this.s.dynamicEl[index].subHtmlUrl;
            } else {
                subHtml = this.s.dynamicEl[index].subHtml;
            }
        } else {
            $currentEle = this.$items.eq(index);
            if ($currentEle.attr('data-sub-html-url')) {
                subHtmlUrl = $currentEle.attr('data-sub-html-url');
            } else {
                subHtml = $currentEle.attr('data-sub-html');
                if (this.s.getCaptionFromTitleOrAlt && !subHtml) {
                    subHtml = $currentEle.attr('title') || $currentEle.find('img').first().attr('alt');
                }
            }
        }

        if (!subHtmlUrl) {
            if (typeof subHtml !== 'undefined' && subHtml !== null) {

                // get first letter of subhtml
                // if first letter starts with . or # get the html form the jQuery object
                var fL = subHtml.substring(0, 1);
                if (fL === '.' || fL === '#') {
                    if (this.s.subHtmlSelectorRelative && !this.s.dynamic) {
                        subHtml = $currentEle.find(subHtml).html();
                    } else {
                        subHtml = $(subHtml).html();
                    }
                }
            } else {
                subHtml = '';
            }
        }

        if (this.s.appendSubHtmlTo === '.lg-sub-html') {

            if (subHtmlUrl) {
                this.$outer.find(this.s.appendSubHtmlTo).load(subHtmlUrl);
            } else {
                this.$outer.find(this.s.appendSubHtmlTo).html(subHtml);
            }

        } else {

            if (subHtmlUrl) {
                this.$slide.eq(index).load(subHtmlUrl);
            } else {
                this.$slide.eq(index).append(subHtml);
            }
        }

        // Add lg-empty-html class if title doesn't exist
        if (typeof subHtml !== 'undefined' && subHtml !== null) {
            if (subHtml === '') {
                this.$outer.find(this.s.appendSubHtmlTo).addClass('lg-empty-html');
            } else {
                this.$outer.find(this.s.appendSubHtmlTo).removeClass('lg-empty-html');
            }
        }

        this.$el.trigger('onAfterAppendSubHtml.lg', [index]);
    };

    /**
     *  @desc Preload slides
     *  @param {Number} index - index of the slide
     */
    Plugin.prototype.preload = function(index) {
        var i = 1;
        var j = 1;
        for (i = 1; i <= this.s.preload; i++) {
            if (i >= this.$items.length - index) {
                break;
            }

            this.loadContent(index + i, false, 0);
        }

        for (j = 1; j <= this.s.preload; j++) {
            if (index - j < 0) {
                break;
            }

            this.loadContent(index - j, false, 0);
        }
    };

    /**
     *  @desc Load slide content into slide.
     *  @param {Number} index - index of the slide.
     *  @param {Boolean} rec - if true call loadcontent() function again.
     *  @param {Boolean} delay - delay for adding complete class. it is 0 except first time.
     */
    Plugin.prototype.loadContent = function(index, rec, delay) {

        var _this = this;
        var _hasPoster = false;
        var _$img;
        var _src;
        var _poster;
        var _srcset;
        var _sizes;
        var _html;
        var getResponsiveSrc = function(srcItms) {
            var rsWidth = [];
            var rsSrc = [];
            for (var i = 0; i < srcItms.length; i++) {
                var __src = srcItms[i].split(' ');

                // Manage empty space
                if (__src[0] === '') {
                    __src.splice(0, 1);
                }

                rsSrc.push(__src[0]);
                rsWidth.push(__src[1]);
            }

            var wWidth = $(window).width();
            for (var j = 0; j < rsWidth.length; j++) {
                if (parseInt(rsWidth[j], 10) > wWidth) {
                    _src = rsSrc[j];
                    break;
                }
            }
        };

        if (_this.s.dynamic) {

            if (_this.s.dynamicEl[index].poster) {
                _hasPoster = true;
                _poster = _this.s.dynamicEl[index].poster;
            }

            _html = _this.s.dynamicEl[index].html;
            _src = _this.s.dynamicEl[index].src;

            if (_this.s.dynamicEl[index].responsive) {
                var srcDyItms = _this.s.dynamicEl[index].responsive.split(',');
                getResponsiveSrc(srcDyItms);
            }

            _srcset = _this.s.dynamicEl[index].srcset;
            _sizes = _this.s.dynamicEl[index].sizes;

        } else {

            if (_this.$items.eq(index).attr('data-poster')) {
                _hasPoster = true;
                _poster = _this.$items.eq(index).attr('data-poster');
            }

            _html = _this.$items.eq(index).attr('data-html');
            _src = _this.$items.eq(index).attr('href') || _this.$items.eq(index).attr('data-src');

            if (_this.$items.eq(index).attr('data-responsive')) {
                var srcItms = _this.$items.eq(index).attr('data-responsive').split(',');
                getResponsiveSrc(srcItms);
            }

            _srcset = _this.$items.eq(index).attr('data-srcset');
            _sizes = _this.$items.eq(index).attr('data-sizes');

        }

        //if (_src || _srcset || _sizes || _poster) {

        var iframe = false;
        if (_this.s.dynamic) {
            if (_this.s.dynamicEl[index].iframe) {
                iframe = true;
            }
        } else {
            if (_this.$items.eq(index).attr('data-iframe') === 'true') {
                iframe = true;
            }
        }

        var _isVideo = _this.isVideo(_src, index);
        if (!_this.$slide.eq(index).hasClass('lg-loaded')) {
            if (iframe) {
                _this.$slide.eq(index).prepend('<div class="lg-video-cont lg-has-iframe" style="max-width:' + _this.s.iframeMaxWidth + '"><div class="lg-video"><iframe class="lg-object" frameborder="0" src="' + _src + '"  allowfullscreen="true"></iframe></div></div>');
            } else if (_hasPoster) {
                var videoClass = '';
                if (_isVideo && _isVideo.youtube) {
                    videoClass = 'lg-has-youtube';
                } else if (_isVideo && _isVideo.vimeo) {
                    videoClass = 'lg-has-vimeo';
                } else {
                    videoClass = 'lg-has-html5';
                }

                _this.$slide.eq(index).prepend('<div class="lg-video-cont ' + videoClass + ' "><div class="lg-video"><span class="lg-video-play"></span><img class="lg-object lg-has-poster" src="' + _poster + '" /></div></div>');

            } else if (_isVideo) {
                _this.$slide.eq(index).prepend('<div class="lg-video-cont "><div class="lg-video"></div></div>');
                _this.$el.trigger('hasVideo.lg', [index, _src, _html]);
            } else {
                _this.$slide.eq(index).prepend('<div class="lg-img-wrap"><img class="lg-object lg-image" src="' + _src + '" /></div>');
            }

            _this.$el.trigger('onAferAppendSlide.lg', [index]);

            _$img = _this.$slide.eq(index).find('.lg-object');
            if (_sizes) {
                _$img.attr('sizes', _sizes);
            }

            if (_srcset) {
                _$img.attr('srcset', _srcset);
                try {
                    picturefill({
                        elements: [_$img[0]]
                    });
                } catch (e) {
                    console.warn('lightGallery :- If you want srcset to be supported for older browser please include picturefil version 2 javascript library in your document.');
                }
            }

            if (this.s.appendSubHtmlTo !== '.lg-sub-html') {
                _this.addHtml(index);
            }

            _this.$slide.eq(index).addClass('lg-loaded');
        }

        _this.$slide.eq(index).find('.lg-object').on('load.lg error.lg', function() {

            // For first time add some delay for displaying the start animation.
            var _speed = 0;

            // Do not change the delay value because it is required for zoom plugin.
            // If gallery opened from direct url (hash) speed value should be 0
            if (delay && !$('body').hasClass('lg-from-hash')) {
                _speed = delay;
            }

            setTimeout(function() {
                _this.$slide.eq(index).addClass('lg-complete');
                _this.$el.trigger('onSlideItemLoad.lg', [index, delay || 0]);
            }, _speed);

        });

        // @todo check load state for html5 videos
        if (_isVideo && _isVideo.html5 && !_hasPoster) {
            _this.$slide.eq(index).addClass('lg-complete');
        }

        if (rec === true) {
            if (!_this.$slide.eq(index).hasClass('lg-complete')) {
                _this.$slide.eq(index).find('.lg-object').on('load.lg error.lg', function() {
                    _this.preload(index);
                });
            } else {
                _this.preload(index);
            }
        }

        //}
    };

    /**
    *   @desc slide function for lightgallery
        ** Slide() gets call on start
        ** ** Set lg.on true once slide() function gets called.
        ** Call loadContent() on slide() function inside setTimeout
        ** ** On first slide we do not want any animation like slide of fade
        ** ** So on first slide( if lg.on if false that is first slide) loadContent() should start loading immediately
        ** ** Else loadContent() should wait for the transition to complete.
        ** ** So set timeout s.speed + 50
    <=> ** loadContent() will load slide content in to the particular slide
        ** ** It has recursion (rec) parameter. if rec === true loadContent() will call preload() function.
        ** ** preload will execute only when the previous slide is fully loaded (images iframe)
        ** ** avoid simultaneous image load
    <=> ** Preload() will check for s.preload value and call loadContent() again accoring to preload value
        ** loadContent()  <====> Preload();

    *   @param {Number} index - index of the slide
    *   @param {Boolean} fromTouch - true if slide function called via touch event or mouse drag
    *   @param {Boolean} fromThumb - true if slide function called via thumbnail click
    *   @param {String} direction - Direction of the slide(next/prev)
    */
    Plugin.prototype.slide = function(index, fromTouch, fromThumb, direction) {

        var _prevIndex = this.$outer.find('.lg-current').index();
        var _this = this;

        // Prevent if multiple call
        // Required for hsh plugin
        if (_this.lGalleryOn && (_prevIndex === index)) {
            return;
        }

        var _length = this.$slide.length;
        var _time = _this.lGalleryOn ? this.s.speed : 0;

        if (!_this.lgBusy) {

            if (this.s.download) {
                var _src;
                if (_this.s.dynamic) {
                    _src = _this.s.dynamicEl[index].downloadUrl !== false && (_this.s.dynamicEl[index].downloadUrl || _this.s.dynamicEl[index].src);
                } else {
                    _src = _this.$items.eq(index).attr('data-download-url') !== 'false' && (_this.$items.eq(index).attr('data-download-url') || _this.$items.eq(index).attr('href') || _this.$items.eq(index).attr('data-src'));

                }

                if (_src) {
                    $('#lg-download').attr('href', _src);
                    _this.$outer.removeClass('lg-hide-download');
                } else {
                    _this.$outer.addClass('lg-hide-download');
                }
            }

            this.$el.trigger('onBeforeSlide.lg', [_prevIndex, index, fromTouch, fromThumb]);

            _this.lgBusy = true;

            clearTimeout(_this.hideBartimeout);

            // Add title if this.s.appendSubHtmlTo === lg-sub-html
            if (this.s.appendSubHtmlTo === '.lg-sub-html') {

                // wait for slide animation to complete
                setTimeout(function() {
                    _this.addHtml(index);
                }, _time);
            }

            this.arrowDisable(index);

            if (!direction) {
                if (index < _prevIndex) {
                    direction = 'prev';
                } else if (index > _prevIndex) {
                    direction = 'next';
                }
            }

            if (!fromTouch) {

                // remove all transitions
                _this.$outer.addClass('lg-no-trans');

                this.$slide.removeClass('lg-prev-slide lg-next-slide');

                if (direction === 'prev') {

                    //prevslide
                    this.$slide.eq(index).addClass('lg-prev-slide');
                    this.$slide.eq(_prevIndex).addClass('lg-next-slide');
                } else {

                    // next slide
                    this.$slide.eq(index).addClass('lg-next-slide');
                    this.$slide.eq(_prevIndex).addClass('lg-prev-slide');
                }

                // give 50 ms for browser to add/remove class
                setTimeout(function() {
                    _this.$slide.removeClass('lg-current');

                    //_this.$slide.eq(_prevIndex).removeClass('lg-current');
                    _this.$slide.eq(index).addClass('lg-current');

                    // reset all transitions
                    _this.$outer.removeClass('lg-no-trans');
                }, 50);
            } else {

                this.$slide.removeClass('lg-prev-slide lg-current lg-next-slide');
                var touchPrev;
                var touchNext;
                if (_length > 2) {
                    touchPrev = index - 1;
                    touchNext = index + 1;

                    if ((index === 0) && (_prevIndex === _length - 1)) {

                        // next slide
                        touchNext = 0;
                        touchPrev = _length - 1;
                    } else if ((index === _length - 1) && (_prevIndex === 0)) {

                        // prev slide
                        touchNext = 0;
                        touchPrev = _length - 1;
                    }

                } else {
                    touchPrev = 0;
                    touchNext = 1;
                }

                if (direction === 'prev') {
                    _this.$slide.eq(touchNext).addClass('lg-next-slide');
                } else {
                    _this.$slide.eq(touchPrev).addClass('lg-prev-slide');
                }

                _this.$slide.eq(index).addClass('lg-current');
            }

            if (_this.lGalleryOn) {
                setTimeout(function() {
                    _this.loadContent(index, true, 0);
                }, this.s.speed + 50);

                setTimeout(function() {
                    _this.lgBusy = false;
                    _this.$el.trigger('onAfterSlide.lg', [_prevIndex, index, fromTouch, fromThumb]);
                }, this.s.speed);

            } else {
                _this.loadContent(index, true, _this.s.backdropDuration);

                _this.lgBusy = false;
                _this.$el.trigger('onAfterSlide.lg', [_prevIndex, index, fromTouch, fromThumb]);
            }

            _this.lGalleryOn = true;

            if (this.s.counter) {
                $('#lg-counter-current').text(index + 1);
            }

        }
        _this.index = index;

    };

    /**
     *  @desc Go to next slide
     *  @param {Boolean} fromTouch - true if slide function called via touch event
     */
    Plugin.prototype.goToNextSlide = function(fromTouch) {
        var _this = this;
        var _loop = _this.s.loop;
        if (fromTouch && _this.$slide.length < 3) {
            _loop = false;
        }

        if (!_this.lgBusy) {
            if ((_this.index + 1) < _this.$slide.length) {
                _this.index++;
                _this.$el.trigger('onBeforeNextSlide.lg', [_this.index]);
                _this.slide(_this.index, fromTouch, false, 'next');
            } else {
                if (_loop) {
                    _this.index = 0;
                    _this.$el.trigger('onBeforeNextSlide.lg', [_this.index]);
                    _this.slide(_this.index, fromTouch, false, 'next');
                } else if (_this.s.slideEndAnimatoin && !fromTouch) {
                    _this.$outer.addClass('lg-right-end');
                    setTimeout(function() {
                        _this.$outer.removeClass('lg-right-end');
                    }, 400);
                }
            }
        }
    };

    /**
     *  @desc Go to previous slide
     *  @param {Boolean} fromTouch - true if slide function called via touch event
     */
    Plugin.prototype.goToPrevSlide = function(fromTouch) {
        var _this = this;
        var _loop = _this.s.loop;
        if (fromTouch && _this.$slide.length < 3) {
            _loop = false;
        }

        if (!_this.lgBusy) {
            if (_this.index > 0) {
                _this.index--;
                _this.$el.trigger('onBeforePrevSlide.lg', [_this.index, fromTouch]);
                _this.slide(_this.index, fromTouch, false, 'prev');
            } else {
                if (_loop) {
                    _this.index = _this.$items.length - 1;
                    _this.$el.trigger('onBeforePrevSlide.lg', [_this.index, fromTouch]);
                    _this.slide(_this.index, fromTouch, false, 'prev');
                } else if (_this.s.slideEndAnimatoin && !fromTouch) {
                    _this.$outer.addClass('lg-left-end');
                    setTimeout(function() {
                        _this.$outer.removeClass('lg-left-end');
                    }, 400);
                }
            }
        }
    };

    Plugin.prototype.keyPress = function() {
        var _this = this;
        if (this.$items.length > 1) {
            $(window).on('keyup.lg', function(e) {
                if (_this.$items.length > 1) {
                    if (e.keyCode === 37) {
                        e.preventDefault();
                        _this.goToPrevSlide();
                    }

                    if (e.keyCode === 39) {
                        e.preventDefault();
                        _this.goToNextSlide();
                    }
                }
            });
        }

        $(window).on('keydown.lg', function(e) {
            if (_this.s.escKey === true && e.keyCode === 27) {
                e.preventDefault();
                if (!_this.$outer.hasClass('lg-thumb-open')) {
                    _this.destroy();
                } else {
                    _this.$outer.removeClass('lg-thumb-open');
                }
            }
        });
    };

    Plugin.prototype.arrow = function() {
        var _this = this;
        this.$outer.find('.lg-prev').on('click.lg', function() {
            _this.goToPrevSlide();
        });

        this.$outer.find('.lg-next').on('click.lg', function() {
            _this.goToNextSlide();
        });
    };

    Plugin.prototype.arrowDisable = function(index) {

        // Disable arrows if s.hideControlOnEnd is true
        if (!this.s.loop && this.s.hideControlOnEnd) {
            if ((index + 1) < this.$slide.length) {
                this.$outer.find('.lg-next').removeAttr('disabled').removeClass('disabled');
            } else {
                this.$outer.find('.lg-next').attr('disabled', 'disabled').addClass('disabled');
            }

            if (index > 0) {
                this.$outer.find('.lg-prev').removeAttr('disabled').removeClass('disabled');
            } else {
                this.$outer.find('.lg-prev').attr('disabled', 'disabled').addClass('disabled');
            }
        }
    };

    Plugin.prototype.setTranslate = function($el, xValue, yValue) {
        // jQuery supports Automatic CSS prefixing since jQuery 1.8.0
        if (this.s.useLeft) {
            $el.css('left', xValue);
        } else {
            $el.css({
                transform: 'translate3d(' + (xValue) + 'px, ' + yValue + 'px, 0px)'
            });
        }
    };

    Plugin.prototype.touchMove = function(startCoords, endCoords) {

        var distance = endCoords - startCoords;

        if (Math.abs(distance) > 15) {
            // reset opacity and transition duration
            this.$outer.addClass('lg-dragging');

            // move current slide
            this.setTranslate(this.$slide.eq(this.index), distance, 0);

            // move next and prev slide with current slide
            this.setTranslate($('.lg-prev-slide'), -this.$slide.eq(this.index).width() + distance, 0);
            this.setTranslate($('.lg-next-slide'), this.$slide.eq(this.index).width() + distance, 0);
        }
    };

    Plugin.prototype.touchEnd = function(distance) {
        var _this = this;

        // keep slide animation for any mode while dragg/swipe
        if (_this.s.mode !== 'lg-slide') {
            _this.$outer.addClass('lg-slide');
        }

        this.$slide.not('.lg-current, .lg-prev-slide, .lg-next-slide').css('opacity', '0');

        // set transition duration
        setTimeout(function() {
            _this.$outer.removeClass('lg-dragging');
            if ((distance < 0) && (Math.abs(distance) > _this.s.swipeThreshold)) {
                _this.goToNextSlide(true);
            } else if ((distance > 0) && (Math.abs(distance) > _this.s.swipeThreshold)) {
                _this.goToPrevSlide(true);
            } else if (Math.abs(distance) < 5) {

                // Trigger click if distance is less than 5 pix
                _this.$el.trigger('onSlideClick.lg');
            }

            _this.$slide.removeAttr('style');
        });

        // remove slide class once drag/swipe is completed if mode is not slide
        setTimeout(function() {
            if (!_this.$outer.hasClass('lg-dragging') && _this.s.mode !== 'lg-slide') {
                _this.$outer.removeClass('lg-slide');
            }
        }, _this.s.speed + 100);

    };

    Plugin.prototype.enableSwipe = function() {
        var _this = this;
        var startCoords = 0;
        var endCoords = 0;
        var isMoved = false;

        if (_this.s.enableSwipe && _this.doCss()) {

            _this.$slide.on('touchstart.lg', function(e) {
                if (!_this.$outer.hasClass('lg-zoomed') && !_this.lgBusy) {
                    e.preventDefault();
                    _this.manageSwipeClass();
                    startCoords = e.originalEvent.targetTouches[0].pageX;
                }
            });

            _this.$slide.on('touchmove.lg', function(e) {
                if (!_this.$outer.hasClass('lg-zoomed')) {
                    e.preventDefault();
                    endCoords = e.originalEvent.targetTouches[0].pageX;
                    _this.touchMove(startCoords, endCoords);
                    isMoved = true;
                }
            });

            _this.$slide.on('touchend.lg', function() {
                if (!_this.$outer.hasClass('lg-zoomed')) {
                    if (isMoved) {
                        isMoved = false;
                        _this.touchEnd(endCoords - startCoords);
                    } else {
                        _this.$el.trigger('onSlideClick.lg');
                    }
                }
            });
        }

    };

    Plugin.prototype.enableDrag = function() {
        var _this = this;
        var startCoords = 0;
        var endCoords = 0;
        var isDraging = false;
        var isMoved = false;
        if (_this.s.enableDrag && _this.doCss()) {
            _this.$slide.on('mousedown.lg', function(e) {
                if (!_this.$outer.hasClass('lg-zoomed') && !_this.lgBusy && !$(e.target).text().trim()) {
                    e.preventDefault();
                    _this.manageSwipeClass();
                    startCoords = e.pageX;
                    isDraging = true;

                    // ** Fix for webkit cursor issue https://code.google.com/p/chromium/issues/detail?id=26723
                    _this.$outer.scrollLeft += 1;
                    _this.$outer.scrollLeft -= 1;

                    // *

                    _this.$outer.removeClass('lg-grab').addClass('lg-grabbing');

                    _this.$el.trigger('onDragstart.lg');
                }
            });

            $(window).on('mousemove.lg', function(e) {
                if (isDraging) {
                    isMoved = true;
                    endCoords = e.pageX;
                    _this.touchMove(startCoords, endCoords);
                    _this.$el.trigger('onDragmove.lg');
                }
            });

            $(window).on('mouseup.lg', function(e) {
                if (isMoved) {
                    isMoved = false;
                    _this.touchEnd(endCoords - startCoords);
                    _this.$el.trigger('onDragend.lg');
                } else if ($(e.target).hasClass('lg-object') || $(e.target).hasClass('lg-video-play')) {
                    _this.$el.trigger('onSlideClick.lg');
                }

                // Prevent execution on click
                if (isDraging) {
                    isDraging = false;
                    _this.$outer.removeClass('lg-grabbing').addClass('lg-grab');
                }
            });

        }
    };

    Plugin.prototype.manageSwipeClass = function() {
        var _touchNext = this.index + 1;
        var _touchPrev = this.index - 1;
        if (this.s.loop && this.$slide.length > 2) {
            if (this.index === 0) {
                _touchPrev = this.$slide.length - 1;
            } else if (this.index === this.$slide.length - 1) {
                _touchNext = 0;
            }
        }

        this.$slide.removeClass('lg-next-slide lg-prev-slide');
        if (_touchPrev > -1) {
            this.$slide.eq(_touchPrev).addClass('lg-prev-slide');
        }

        this.$slide.eq(_touchNext).addClass('lg-next-slide');
    };

    Plugin.prototype.mousewheel = function() {
        var _this = this;
        _this.$outer.on('mousewheel.lg', function(e) {

            if (!e.deltaY) {
                return;
            }

            if (e.deltaY > 0) {
                _this.goToPrevSlide();
            } else {
                _this.goToNextSlide();
            }

            e.preventDefault();
        });

    };

    Plugin.prototype.closeGallery = function() {

        var _this = this;
        var mousedown = false;
        this.$outer.find('.lg-close').on('click.lg', function() {
            _this.destroy();
        });

        if (_this.s.closable) {

            // If you drag the slide and release outside gallery gets close on chrome
            // for preventing this check mousedown and mouseup happened on .lg-item or lg-outer
            _this.$outer.on('mousedown.lg', function(e) {

                if ($(e.target).is('.lg-outer') || $(e.target).is('.lg-item ') || $(e.target).is('.lg-img-wrap')) {
                    mousedown = true;
                } else {
                    mousedown = false;
                }

            });
            
            _this.$outer.on('mousemove.lg', function() {
                mousedown = false;
            });

            _this.$outer.on('mouseup.lg', function(e) {

                if ($(e.target).is('.lg-outer') || $(e.target).is('.lg-item ') || $(e.target).is('.lg-img-wrap') && mousedown) {
                    if (!_this.$outer.hasClass('lg-dragging')) {
                        _this.destroy();
                    }
                }

            });

        }

    };

    Plugin.prototype.destroy = function(d) {

        var _this = this;

        if (!d) {
            _this.$el.trigger('onBeforeClose.lg');
            $(window).scrollTop(_this.prevScrollTop);
        }


        /**
         * if d is false or undefined destroy will only close the gallery
         * plugins instance remains with the element
         *
         * if d is true destroy will completely remove the plugin
         */

        if (d) {
            if (!_this.s.dynamic) {
                // only when not using dynamic mode is $items a jquery collection
                this.$items.off('click.lg click.lgcustom');
            }

            $.removeData(_this.el, 'lightGallery');
        }

        // Unbind all events added by lightGallery
        this.$el.off('.lg.tm');

        // Distroy all lightGallery modules
        $.each($.fn.lightGallery.modules, function(key) {
            if (_this.modules[key]) {
                _this.modules[key].destroy();
            }
        });

        this.lGalleryOn = false;

        clearTimeout(_this.hideBartimeout);
        this.hideBartimeout = false;
        $(window).off('.lg');
        $('body').removeClass('lg-on lg-from-hash');

        if (_this.$outer) {
            _this.$outer.removeClass('lg-visible');
        }

        $('.lg-backdrop').removeClass('in');

        setTimeout(function() {
            if (_this.$outer) {
                _this.$outer.remove();
            }

            $('.lg-backdrop').remove();

            if (!d) {
                _this.$el.trigger('onCloseAfter.lg');
            }

        }, _this.s.backdropDuration + 50);
    };

    $.fn.lightGallery = function(options) {
        return this.each(function() {
            if (!$.data(this, 'lightGallery')) {
                $.data(this, 'lightGallery', new Plugin(this, options));
            } else {
                try {
                    $(this).data('lightGallery').init();
                } catch (err) {
                    console.error('lightGallery has not initiated properly');
                }
            }
        });
    };

    $.fn.lightGallery.modules = {};

})();

/*! lg-autoplay - v1.0.4 - 2017-03-28
* http://sachinchoolur.github.io/lightGallery
* Copyright (c) 2017 Sachin N; Licensed GPLv3 */

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module unless amdModuleId is set
    define(['jquery'], function (a0) {
      return (factory(a0));
    });
  } else if (typeof exports === 'object') {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require('jquery'));
  } else {
    factory(jQuery);
  }
}(this, function ($) {


(function() {

    'use strict';

    var defaults = {
        autoplay: false,
        pause: 5000,
        progressBar: true,
        fourceAutoplay: false,
        autoplayControls: true,
        appendAutoplayControlsTo: '.lg-toolbar'
    };

    /**
     * Creates the autoplay plugin.
     * @param {object} element - lightGallery element
     */
    var Autoplay = function(element) {

        this.core = $(element).data('lightGallery');

        this.$el = $(element);

        // Execute only if items are above 1
        if (this.core.$items.length < 2) {
            return false;
        }

        this.core.s = $.extend({}, defaults, this.core.s);
        this.interval = false;

        // Identify if slide happened from autoplay
        this.fromAuto = true;

        // Identify if autoplay canceled from touch/drag
        this.canceledOnTouch = false;

        // save fourceautoplay value
        this.fourceAutoplayTemp = this.core.s.fourceAutoplay;

        // do not allow progress bar if browser does not support css3 transitions
        if (!this.core.doCss()) {
            this.core.s.progressBar = false;
        }

        this.init();

        return this;
    };

    Autoplay.prototype.init = function() {
        var _this = this;

        // append autoplay controls
        if (_this.core.s.autoplayControls) {
            _this.controls();
        }

        // Create progress bar
        if (_this.core.s.progressBar) {
            _this.core.$outer.find('.lg').append('<div class="lg-progress-bar"><div class="lg-progress"></div></div>');
        }

        // set progress
        _this.progress();

        // Start autoplay
        if (_this.core.s.autoplay) {
            _this.$el.one('onSlideItemLoad.lg.tm', function() {
                _this.startlAuto();
            });
        }

        // cancel interval on touchstart and dragstart
        _this.$el.on('onDragstart.lg.tm touchstart.lg.tm', function() {
            if (_this.interval) {
                _this.cancelAuto();
                _this.canceledOnTouch = true;
            }
        });

        // restore autoplay if autoplay canceled from touchstart / dragstart
        _this.$el.on('onDragend.lg.tm touchend.lg.tm onSlideClick.lg.tm', function() {
            if (!_this.interval && _this.canceledOnTouch) {
                _this.startlAuto();
                _this.canceledOnTouch = false;
            }
        });

    };

    Autoplay.prototype.progress = function() {

        var _this = this;
        var _$progressBar;
        var _$progress;

        _this.$el.on('onBeforeSlide.lg.tm', function() {

            // start progress bar animation
            if (_this.core.s.progressBar && _this.fromAuto) {
                _$progressBar = _this.core.$outer.find('.lg-progress-bar');
                _$progress = _this.core.$outer.find('.lg-progress');
                if (_this.interval) {
                    _$progress.removeAttr('style');
                    _$progressBar.removeClass('lg-start');
                    setTimeout(function() {
                        _$progress.css('transition', 'width ' + (_this.core.s.speed + _this.core.s.pause) + 'ms ease 0s');
                        _$progressBar.addClass('lg-start');
                    }, 20);
                }
            }

            // Remove setinterval if slide is triggered manually and fourceautoplay is false
            if (!_this.fromAuto && !_this.core.s.fourceAutoplay) {
                _this.cancelAuto();
            }

            _this.fromAuto = false;

        });
    };

    // Manage autoplay via play/stop buttons
    Autoplay.prototype.controls = function() {
        var _this = this;
        var _html = '<span class="lg-autoplay-button lg-icon"></span>';

        // Append autoplay controls
        $(this.core.s.appendAutoplayControlsTo).append(_html);

        _this.core.$outer.find('.lg-autoplay-button').on('click.lg', function() {
            if ($(_this.core.$outer).hasClass('lg-show-autoplay')) {
                _this.cancelAuto();
                _this.core.s.fourceAutoplay = false;
            } else {
                if (!_this.interval) {
                    _this.startlAuto();
                    _this.core.s.fourceAutoplay = _this.fourceAutoplayTemp;
                }
            }
        });
    };

    // Autostart gallery
    Autoplay.prototype.startlAuto = function() {
        var _this = this;

        _this.core.$outer.find('.lg-progress').css('transition', 'width ' + (_this.core.s.speed + _this.core.s.pause) + 'ms ease 0s');
        _this.core.$outer.addClass('lg-show-autoplay');
        _this.core.$outer.find('.lg-progress-bar').addClass('lg-start');

        _this.interval = setInterval(function() {
            if (_this.core.index + 1 < _this.core.$items.length) {
                _this.core.index++;
            } else {
                _this.core.index = 0;
            }

            _this.fromAuto = true;
            _this.core.slide(_this.core.index, false, false, 'next');
        }, _this.core.s.speed + _this.core.s.pause);
    };

    // cancel Autostart
    Autoplay.prototype.cancelAuto = function() {
        clearInterval(this.interval);
        this.interval = false;
        this.core.$outer.find('.lg-progress').removeAttr('style');
        this.core.$outer.removeClass('lg-show-autoplay');
        this.core.$outer.find('.lg-progress-bar').removeClass('lg-start');
    };

    Autoplay.prototype.destroy = function() {

        this.cancelAuto();
        this.core.$outer.find('.lg-progress-bar').remove();
    };

    $.fn.lightGallery.modules.autoplay = Autoplay;

})();


}));

/*! lg-fullscreen - v1.1.0 - 2019-02-19
* http://sachinchoolur.github.io/lightGallery
* Copyright (c) 2019 Sachin N; Licensed GPLv3 */

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module unless amdModuleId is set
    define(['jquery'], function (a0) {
      return (factory(a0));
    });
  } else if (typeof module === 'object' && module.exports) {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require('jquery'));
  } else {
    factory(root["jQuery"]);
  }
}(this, function ($) {

(function() {

    'use strict';

    var defaults = {
        fullScreen: true
    };

    function isFullScreen() {
        return (
            document.fullscreenElement ||
            document.mozFullScreenElement ||
            document.webkitFullscreenElement ||
            document.msFullscreenElement
        );
    }

    var Fullscreen = function(element) {

        // get lightGallery core plugin data
        this.core = $(element).data('lightGallery');

        this.$el = $(element);

        // extend module defalut settings with lightGallery core settings
        this.core.s = $.extend({}, defaults, this.core.s);

        this.init();

        return this;
    };

    Fullscreen.prototype.init = function() {
        var fullScreen = '';
        if (this.core.s.fullScreen) {

            // check for fullscreen browser support
            if (!document.fullscreenEnabled && !document.webkitFullscreenEnabled &&
                !document.mozFullScreenEnabled && !document.msFullscreenEnabled) {
                return;
            } else {
                fullScreen = '<span class="lg-fullscreen lg-icon"></span>';
                this.core.$outer.find('.lg-toolbar').append(fullScreen);
                this.fullScreen();
            }
        }
    };

    Fullscreen.prototype.requestFullscreen = function() {
        var el = document.documentElement;
        if (el.requestFullscreen) {
            el.requestFullscreen();
        } else if (el.msRequestFullscreen) {
            el.msRequestFullscreen();
        } else if (el.mozRequestFullScreen) {
            el.mozRequestFullScreen();
        } else if (el.webkitRequestFullscreen) {
            el.webkitRequestFullscreen();
        }
    };

    Fullscreen.prototype.exitFullscreen = function() {
        if (document.exitFullscreen) {
            document.exitFullscreen();
        } else if (document.msExitFullscreen) {
            document.msExitFullscreen();
        } else if (document.mozCancelFullScreen) {
            document.mozCancelFullScreen();
        } else if (document.webkitExitFullscreen) {
            document.webkitExitFullscreen();
        }
    };

    // https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Using_full_screen_mode
    Fullscreen.prototype.fullScreen = function() {
        var _this = this;

        $(document).on('fullscreenchange.lg webkitfullscreenchange.lg mozfullscreenchange.lg MSFullscreenChange.lg', function() {
            _this.core.$outer.toggleClass('lg-fullscreen-on');
        });

        this.core.$outer.find('.lg-fullscreen').on('click.lg', function() {
            if (isFullScreen()) {
                _this.exitFullscreen();
            } else {
                _this.requestFullscreen();
            }
        });

    };

    Fullscreen.prototype.destroy = function() {

        // exit from fullscreen if activated
        if(isFullScreen()) {
            this.exitFullscreen();
        }

        $(document).off('fullscreenchange.lg webkitfullscreenchange.lg mozfullscreenchange.lg MSFullscreenChange.lg');
    };

    $.fn.lightGallery.modules.fullscreen = Fullscreen;

})();

}));

/*! lg-hash - v1.0.4 - 2017-12-20
* http://sachinchoolur.github.io/lightGallery
* Copyright (c) 2017 Sachin N; Licensed GPLv3 */

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module unless amdModuleId is set
    define(['jquery'], function (a0) {
      return (factory(a0));
    });
  } else if (typeof exports === 'object') {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require('jquery'));
  } else {
    factory(jQuery);
  }
}(this, function ($) {

(function() {

    'use strict';

    var defaults = {
        hash: true
    };

    var Hash = function(element) {

        this.core = $(element).data('lightGallery');

        this.core.s = $.extend({}, defaults, this.core.s);

        if (this.core.s.hash) {
            this.oldHash = window.location.hash;
            this.init();
        }

        return this;
    };

    Hash.prototype.init = function() {
        var _this = this;
        var _hash;

        // Change hash value on after each slide transition
        _this.core.$el.on('onAfterSlide.lg.tm', function(event, prevIndex, index) {
            if (history.replaceState) {
                history.replaceState(null, null, window.location.pathname + window.location.search + '#lg=' + _this.core.s.galleryId + '&slide=' + index);
            } else {
                window.location.hash = 'lg=' + _this.core.s.galleryId + '&slide=' + index;
            }
        });

        // Listen hash change and change the slide according to slide value
        $(window).on('hashchange.lg.hash', function() {
            _hash = window.location.hash;
            var _idx = parseInt(_hash.split('&slide=')[1], 10);

            // it galleryId doesn't exist in the url close the gallery
            if ((_hash.indexOf('lg=' + _this.core.s.galleryId) > -1)) {
                _this.core.slide(_idx, false, false);
            } else if (_this.core.lGalleryOn) {
                _this.core.destroy();
            }

        });
    };

    Hash.prototype.destroy = function() {

        if (!this.core.s.hash) {
            return;
        }

        // Reset to old hash value
        if (this.oldHash && this.oldHash.indexOf('lg=' + this.core.s.galleryId) < 0) {
            if (history.replaceState) {
                history.replaceState(null, null, this.oldHash);
            } else {
                window.location.hash = this.oldHash;
            }
        } else {
            if (history.replaceState) {
                history.replaceState(null, document.title, window.location.pathname + window.location.search);
            } else {
                window.location.hash = '';
            }
        }

        this.core.$el.off('.lg.hash');

    };

    $.fn.lightGallery.modules.hash = Hash;

})();


}));

/*! lg-pager - v1.0.2 - 2017-01-22
* http://sachinchoolur.github.io/lightGallery
* Copyright (c) 2017 Sachin N; Licensed GPLv3 */

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module unless amdModuleId is set
    define(['jquery'], function (a0) {
      return (factory(a0));
    });
  } else if (typeof exports === 'object') {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require('jquery'));
  } else {
    factory(jQuery);
  }
}(this, function ($) {

(function() {

    'use strict';

    var defaults = {
        pager: false
    };

    var Pager = function(element) {

        this.core = $(element).data('lightGallery');

        this.$el = $(element);
        this.core.s = $.extend({}, defaults, this.core.s);
        if (this.core.s.pager && this.core.$items.length > 1) {
            this.init();
        }

        return this;
    };

    Pager.prototype.init = function() {
        var _this = this;
        var pagerList = '';
        var $pagerCont;
        var $pagerOuter;
        var timeout;

        _this.core.$outer.find('.lg').append('<div class="lg-pager-outer"></div>');

        if (_this.core.s.dynamic) {
            for (var i = 0; i < _this.core.s.dynamicEl.length; i++) {
                pagerList += '<span class="lg-pager-cont"> <span class="lg-pager"></span><div class="lg-pager-thumb-cont"><span class="lg-caret"></span> <img src="' + _this.core.s.dynamicEl[i].thumb + '" /></div></span>';
            }
        } else {
            _this.core.$items.each(function() {

                if (!_this.core.s.exThumbImage) {
                    pagerList += '<span class="lg-pager-cont"> <span class="lg-pager"></span><div class="lg-pager-thumb-cont"><span class="lg-caret"></span> <img src="' + $(this).find('img').attr('src') + '" /></div></span>';
                } else {
                    pagerList += '<span class="lg-pager-cont"> <span class="lg-pager"></span><div class="lg-pager-thumb-cont"><span class="lg-caret"></span> <img src="' + $(this).attr(_this.core.s.exThumbImage) + '" /></div></span>';
                }

            });
        }

        $pagerOuter = _this.core.$outer.find('.lg-pager-outer');

        $pagerOuter.html(pagerList);

        $pagerCont = _this.core.$outer.find('.lg-pager-cont');
        $pagerCont.on('click.lg touchend.lg', function() {
            var _$this = $(this);
            _this.core.index = _$this.index();
            _this.core.slide(_this.core.index, false, true, false);
        });

        $pagerOuter.on('mouseover.lg', function() {
            clearTimeout(timeout);
            $pagerOuter.addClass('lg-pager-hover');
        });

        $pagerOuter.on('mouseout.lg', function() {
            timeout = setTimeout(function() {
                $pagerOuter.removeClass('lg-pager-hover');
            });
        });

        _this.core.$el.on('onBeforeSlide.lg.tm', function(e, prevIndex, index) {
            $pagerCont.removeClass('lg-pager-active');
            $pagerCont.eq(index).addClass('lg-pager-active');
        });

    };

    Pager.prototype.destroy = function() {

    };

    $.fn.lightGallery.modules.pager = Pager;

})();


}));

/*! lg-thumbnail - v1.1.0 - 2017-08-08
* http://sachinchoolur.github.io/lightGallery
* Copyright (c) 2017 Sachin N; Licensed GPLv3 */

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module unless amdModuleId is set
    define(['jquery'], function (a0) {
      return (factory(a0));
    });
  } else if (typeof exports === 'object') {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require('jquery'));
  } else {
    factory(jQuery);
  }
}(this, function ($) {

(function() {

    'use strict';

    var defaults = {
        thumbnail: true,

        animateThumb: true,
        currentPagerPosition: 'middle',

        thumbWidth: 100,
        thumbHeight: '80px',
        thumbContHeight: 100,
        thumbMargin: 5,

        exThumbImage: false,
        showThumbByDefault: true,
        toogleThumb: true,
        pullCaptionUp: true,

        enableThumbDrag: true,
        enableThumbSwipe: true,
        swipeThreshold: 50,

        loadYoutubeThumbnail: true,
        youtubeThumbSize: 1,

        loadVimeoThumbnail: true,
        vimeoThumbSize: 'thumbnail_small',

        loadDailymotionThumbnail: true
    };

    var Thumbnail = function(element) {

        // get lightGallery core plugin data
        this.core = $(element).data('lightGallery');

        // extend module default settings with lightGallery core settings
        this.core.s = $.extend({}, defaults, this.core.s);

        this.$el = $(element);
        this.$thumbOuter = null;
        this.thumbOuterWidth = 0;
        this.thumbTotalWidth = (this.core.$items.length * (this.core.s.thumbWidth + this.core.s.thumbMargin));
        this.thumbIndex = this.core.index;

        if (this.core.s.animateThumb) {
            this.core.s.thumbHeight = '100%';
        }

        // Thumbnail animation value
        this.left = 0;

        this.init();

        return this;
    };

    Thumbnail.prototype.init = function() {
        var _this = this;
        if (this.core.s.thumbnail && this.core.$items.length > 1) {
            if (this.core.s.showThumbByDefault) {
                setTimeout(function(){
                    _this.core.$outer.addClass('lg-thumb-open');
                }, 700);
            }

            if (this.core.s.pullCaptionUp) {
                this.core.$outer.addClass('lg-pull-caption-up');
            }

            this.build();
            if (this.core.s.animateThumb && this.core.doCss()) {
                if (this.core.s.enableThumbDrag) {
                    this.enableThumbDrag();
                }

                if (this.core.s.enableThumbSwipe) {
                    this.enableThumbSwipe();
                }

                this.thumbClickable = false;
            } else {
                this.thumbClickable = true;
            }

            this.toogle();
            this.thumbkeyPress();
        }
    };

    Thumbnail.prototype.build = function() {
        var _this = this;
        var thumbList = '';
        var vimeoErrorThumbSize = '';
        var $thumb;
        var html = '<div class="lg-thumb-outer">' +
            '<div class="lg-thumb lg-group">' +
            '</div>' +
            '</div>';

        switch (this.core.s.vimeoThumbSize) {
            case 'thumbnail_large':
                vimeoErrorThumbSize = '640';
                break;
            case 'thumbnail_medium':
                vimeoErrorThumbSize = '200x150';
                break;
            case 'thumbnail_small':
                vimeoErrorThumbSize = '100x75';
        }

        _this.core.$outer.addClass('lg-has-thumb');

        _this.core.$outer.find('.lg').append(html);

        _this.$thumbOuter = _this.core.$outer.find('.lg-thumb-outer');
        _this.thumbOuterWidth = _this.$thumbOuter.width();

        if (_this.core.s.animateThumb) {
            _this.core.$outer.find('.lg-thumb').css({
                width: _this.thumbTotalWidth + 'px',
                position: 'relative'
            });
        }

        if (this.core.s.animateThumb) {
            _this.$thumbOuter.css('height', _this.core.s.thumbContHeight + 'px');
        }

        function getThumb(src, thumb, index) {
            var isVideo = _this.core.isVideo(src, index) || {};
            var thumbImg;
            var vimeoId = '';

            if (isVideo.youtube || isVideo.vimeo || isVideo.dailymotion) {
                if (isVideo.youtube) {
                    if (_this.core.s.loadYoutubeThumbnail) {
                        thumbImg = '//img.youtube.com/vi/' + isVideo.youtube[1] + '/' + _this.core.s.youtubeThumbSize + '.jpg';
                    } else {
                        thumbImg = thumb;
                    }
                } else if (isVideo.vimeo) {
                    if (_this.core.s.loadVimeoThumbnail) {
                        thumbImg = '//i.vimeocdn.com/video/error_' + vimeoErrorThumbSize + '.jpg';
                        vimeoId = isVideo.vimeo[1];
                    } else {
                        thumbImg = thumb;
                    }
                } else if (isVideo.dailymotion) {
                    if (_this.core.s.loadDailymotionThumbnail) {
                        thumbImg = '//www.dailymotion.com/thumbnail/video/' + isVideo.dailymotion[1];
                    } else {
                        thumbImg = thumb;
                    }
                }
            } else {
                thumbImg = thumb;
            }

            thumbList += '<div data-vimeo-id="' + vimeoId + '" class="lg-thumb-item" style="width:' + _this.core.s.thumbWidth + 'px; height: ' + _this.core.s.thumbHeight + '; margin-right: ' + _this.core.s.thumbMargin + 'px"><img src="' + thumbImg + '" /></div>';
            vimeoId = '';
        }

        if (_this.core.s.dynamic) {
            for (var i = 0; i < _this.core.s.dynamicEl.length; i++) {
                getThumb(_this.core.s.dynamicEl[i].src, _this.core.s.dynamicEl[i].thumb, i);
            }
        } else {
            _this.core.$items.each(function(i) {

                if (!_this.core.s.exThumbImage) {
                    getThumb($(this).attr('href') || $(this).attr('data-src'), $(this).find('img').attr('src'), i);
                } else {
                    getThumb($(this).attr('href') || $(this).attr('data-src'), $(this).attr(_this.core.s.exThumbImage), i);
                }

            });
        }

        _this.core.$outer.find('.lg-thumb').html(thumbList);

        $thumb = _this.core.$outer.find('.lg-thumb-item');

        // Load vimeo thumbnails
        $thumb.each(function() {
            var $this = $(this);
            var vimeoVideoId = $this.attr('data-vimeo-id');

            if (vimeoVideoId) {
                $.getJSON('//www.vimeo.com/api/v2/video/' + vimeoVideoId + '.json?callback=?', {
                    format: 'json'
                }, function(data) {
                    $this.find('img').attr('src', data[0][_this.core.s.vimeoThumbSize]);
                });
            }
        });

        // manage active class for thumbnail
        $thumb.eq(_this.core.index).addClass('active');
        _this.core.$el.on('onBeforeSlide.lg.tm', function() {
            $thumb.removeClass('active');
            $thumb.eq(_this.core.index).addClass('active');
        });

        $thumb.on('click.lg touchend.lg', function() {
            var _$this = $(this);
            setTimeout(function() {

                // In IE9 and bellow touch does not support
                // Go to slide if browser does not support css transitions
                if ((_this.thumbClickable && !_this.core.lgBusy) || !_this.core.doCss()) {
                    _this.core.index = _$this.index();
                    _this.core.slide(_this.core.index, false, true, false);
                }
            }, 50);
        });

        _this.core.$el.on('onBeforeSlide.lg.tm', function() {
            _this.animateThumb(_this.core.index);
        });

        $(window).on('resize.lg.thumb orientationchange.lg.thumb', function() {
            setTimeout(function() {
                _this.animateThumb(_this.core.index);
                _this.thumbOuterWidth = _this.$thumbOuter.width();
            }, 200);
        });

    };

    Thumbnail.prototype.setTranslate = function(value) {
        // jQuery supports Automatic CSS prefixing since jQuery 1.8.0
        this.core.$outer.find('.lg-thumb').css({
            transform: 'translate3d(-' + (value) + 'px, 0px, 0px)'
        });
    };

    Thumbnail.prototype.animateThumb = function(index) {
        var $thumb = this.core.$outer.find('.lg-thumb');
        if (this.core.s.animateThumb) {
            var position;
            switch (this.core.s.currentPagerPosition) {
                case 'left':
                    position = 0;
                    break;
                case 'middle':
                    position = (this.thumbOuterWidth / 2) - (this.core.s.thumbWidth / 2);
                    break;
                case 'right':
                    position = this.thumbOuterWidth - this.core.s.thumbWidth;
            }
            this.left = ((this.core.s.thumbWidth + this.core.s.thumbMargin) * index - 1) - position;
            if (this.left > (this.thumbTotalWidth - this.thumbOuterWidth)) {
                this.left = this.thumbTotalWidth - this.thumbOuterWidth;
            }

            if (this.left < 0) {
                this.left = 0;
            }

            if (this.core.lGalleryOn) {
                if (!$thumb.hasClass('on')) {
                    this.core.$outer.find('.lg-thumb').css('transition-duration', this.core.s.speed + 'ms');
                }

                if (!this.core.doCss()) {
                    $thumb.animate({
                        left: -this.left + 'px'
                    }, this.core.s.speed);
                }
            } else {
                if (!this.core.doCss()) {
                    $thumb.css('left', -this.left + 'px');
                }
            }

            this.setTranslate(this.left);

        }
    };

    // Enable thumbnail dragging and swiping
    Thumbnail.prototype.enableThumbDrag = function() {

        var _this = this;
        var startCoords = 0;
        var endCoords = 0;
        var isDraging = false;
        var isMoved = false;
        var tempLeft = 0;

        _this.$thumbOuter.addClass('lg-grab');

        _this.core.$outer.find('.lg-thumb').on('mousedown.lg.thumb', function(e) {
            if (_this.thumbTotalWidth > _this.thumbOuterWidth) {
                // execute only on .lg-object
                e.preventDefault();
                startCoords = e.pageX;
                isDraging = true;

                // ** Fix for webkit cursor issue https://code.google.com/p/chromium/issues/detail?id=26723
                _this.core.$outer.scrollLeft += 1;
                _this.core.$outer.scrollLeft -= 1;

                // *
                _this.thumbClickable = false;
                _this.$thumbOuter.removeClass('lg-grab').addClass('lg-grabbing');
            }
        });

        $(window).on('mousemove.lg.thumb', function(e) {
            if (isDraging) {
                tempLeft = _this.left;
                isMoved = true;
                endCoords = e.pageX;

                _this.$thumbOuter.addClass('lg-dragging');

                tempLeft = tempLeft - (endCoords - startCoords);

                if (tempLeft > (_this.thumbTotalWidth - _this.thumbOuterWidth)) {
                    tempLeft = _this.thumbTotalWidth - _this.thumbOuterWidth;
                }

                if (tempLeft < 0) {
                    tempLeft = 0;
                }

                // move current slide
                _this.setTranslate(tempLeft);

            }
        });

        $(window).on('mouseup.lg.thumb', function() {
            if (isMoved) {
                isMoved = false;
                _this.$thumbOuter.removeClass('lg-dragging');

                _this.left = tempLeft;

                if (Math.abs(endCoords - startCoords) < _this.core.s.swipeThreshold) {
                    _this.thumbClickable = true;
                }

            } else {
                _this.thumbClickable = true;
            }

            if (isDraging) {
                isDraging = false;
                _this.$thumbOuter.removeClass('lg-grabbing').addClass('lg-grab');
            }
        });

    };

    Thumbnail.prototype.enableThumbSwipe = function() {
        var _this = this;
        var startCoords = 0;
        var endCoords = 0;
        var isMoved = false;
        var tempLeft = 0;

        _this.core.$outer.find('.lg-thumb').on('touchstart.lg', function(e) {
            if (_this.thumbTotalWidth > _this.thumbOuterWidth) {
                e.preventDefault();
                startCoords = e.originalEvent.targetTouches[0].pageX;
                _this.thumbClickable = false;
            }
        });

        _this.core.$outer.find('.lg-thumb').on('touchmove.lg', function(e) {
            if (_this.thumbTotalWidth > _this.thumbOuterWidth) {
                e.preventDefault();
                endCoords = e.originalEvent.targetTouches[0].pageX;
                isMoved = true;

                _this.$thumbOuter.addClass('lg-dragging');

                tempLeft = _this.left;

                tempLeft = tempLeft - (endCoords - startCoords);

                if (tempLeft > (_this.thumbTotalWidth - _this.thumbOuterWidth)) {
                    tempLeft = _this.thumbTotalWidth - _this.thumbOuterWidth;
                }

                if (tempLeft < 0) {
                    tempLeft = 0;
                }

                // move current slide
                _this.setTranslate(tempLeft);

            }
        });

        _this.core.$outer.find('.lg-thumb').on('touchend.lg', function() {
            if (_this.thumbTotalWidth > _this.thumbOuterWidth) {

                if (isMoved) {
                    isMoved = false;
                    _this.$thumbOuter.removeClass('lg-dragging');
                    if (Math.abs(endCoords - startCoords) < _this.core.s.swipeThreshold) {
                        _this.thumbClickable = true;
                    }

                    _this.left = tempLeft;
                } else {
                    _this.thumbClickable = true;
                }
            } else {
                _this.thumbClickable = true;
            }
        });

    };

    Thumbnail.prototype.toogle = function() {
        var _this = this;
        if (_this.core.s.toogleThumb) {
            _this.core.$outer.addClass('lg-can-toggle');
            _this.$thumbOuter.append('<span class="lg-toogle-thumb lg-icon"></span>');
            _this.core.$outer.find('.lg-toogle-thumb').on('click.lg', function() {
                _this.core.$outer.toggleClass('lg-thumb-open');
            });
        }
    };

    Thumbnail.prototype.thumbkeyPress = function() {
        var _this = this;
        $(window).on('keydown.lg.thumb', function(e) {
            if (e.keyCode === 38) {
                e.preventDefault();
                _this.core.$outer.addClass('lg-thumb-open');
            } else if (e.keyCode === 40) {
                e.preventDefault();
                _this.core.$outer.removeClass('lg-thumb-open');
            }
        });
    };

    Thumbnail.prototype.destroy = function() {
        if (this.core.s.thumbnail && this.core.$items.length > 1) {
            $(window).off('resize.lg.thumb orientationchange.lg.thumb keydown.lg.thumb');
            this.$thumbOuter.remove();
            this.core.$outer.removeClass('lg-has-thumb');
        }
    };

    $.fn.lightGallery.modules.Thumbnail = Thumbnail;

})();

}));

/*! lg-zoom - v1.1.0 - 2017-08-08
* http://sachinchoolur.github.io/lightGallery
* Copyright (c) 2017 Sachin N; Licensed GPLv3 */

(function (root, factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD. Register as an anonymous module unless amdModuleId is set
    define(['jquery'], function (a0) {
      return (factory(a0));
    });
  } else if (typeof exports === 'object') {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require('jquery'));
  } else {
    factory(jQuery);
  }
}(this, function ($) {

(function() {

    'use strict';

    var getUseLeft = function() {
        var useLeft = false;
        var isChrome = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./);
        if (isChrome && parseInt(isChrome[2], 10) < 54) {
            useLeft = true;
        }

        return useLeft;
    };

    var defaults = {
        scale: 1,
        zoom: true,
        actualSize: true,
        enableZoomAfter: 300,
        useLeftForZoom: getUseLeft()
    };

    var Zoom = function(element) {

        this.core = $(element).data('lightGallery');

        this.core.s = $.extend({}, defaults, this.core.s);

        if (this.core.s.zoom && this.core.doCss()) {
            this.init();

            // Store the zoomable timeout value just to clear it while closing
            this.zoomabletimeout = false;

            // Set the initial value center
            this.pageX = $(window).width() / 2;
            this.pageY = ($(window).height() / 2) + $(window).scrollTop();
        }

        return this;
    };

    Zoom.prototype.init = function() {

        var _this = this;
        var zoomIcons = '<span id="lg-zoom-in" class="lg-icon"></span><span id="lg-zoom-out" class="lg-icon"></span>';

        if (_this.core.s.actualSize) {
            zoomIcons += '<span id="lg-actual-size" class="lg-icon"></span>';
        }

        if (_this.core.s.useLeftForZoom) {
            _this.core.$outer.addClass('lg-use-left-for-zoom');
        } else {
            _this.core.$outer.addClass('lg-use-transition-for-zoom');
        }

        this.core.$outer.find('.lg-toolbar').append(zoomIcons);

        // Add zoomable class
        _this.core.$el.on('onSlideItemLoad.lg.tm.zoom', function(event, index, delay) {

            // delay will be 0 except first time
            var _speed = _this.core.s.enableZoomAfter + delay;

            // set _speed value 0 if gallery opened from direct url and if it is first slide
            if ($('body').hasClass('lg-from-hash') && delay) {

                // will execute only once
                _speed = 0;
            } else {

                // Remove lg-from-hash to enable starting animation.
                $('body').removeClass('lg-from-hash');
            }

            _this.zoomabletimeout = setTimeout(function() {
                _this.core.$slide.eq(index).addClass('lg-zoomable');
            }, _speed + 30);
        });

        var scale = 1;
        /**
         * @desc Image zoom
         * Translate the wrap and scale the image to get better user experience
         *
         * @param {String} scaleVal - Zoom decrement/increment value
         */
        var zoom = function(scaleVal) {

            var $image = _this.core.$outer.find('.lg-current .lg-image');
            var _x;
            var _y;

            // Find offset manually to avoid issue after zoom
            var offsetX = ($(window).width() - $image.prop('offsetWidth')) / 2;
            var offsetY = (($(window).height() - $image.prop('offsetHeight')) / 2) + $(window).scrollTop();

            _x = _this.pageX - offsetX;
            _y = _this.pageY - offsetY;

            var x = (scaleVal - 1) * (_x);
            var y = (scaleVal - 1) * (_y);

            $image.css('transform', 'scale3d(' + scaleVal + ', ' + scaleVal + ', 1)').attr('data-scale', scaleVal);

            if (_this.core.s.useLeftForZoom) {
                $image.parent().css({
                    left: -x + 'px',
                    top: -y + 'px'
                }).attr('data-x', x).attr('data-y', y);
            } else {
                $image.parent().css('transform', 'translate3d(-' + x + 'px, -' + y + 'px, 0)').attr('data-x', x).attr('data-y', y);
            }
        };

        var callScale = function() {
            if (scale > 1) {
                _this.core.$outer.addClass('lg-zoomed');
            } else {
                _this.resetZoom();
            }

            if (scale < 1) {
                scale = 1;
            }

            zoom(scale);
        };

        var actualSize = function(event, $image, index, fromIcon) {
            var w = $image.prop('offsetWidth');
            var nw;
            if (_this.core.s.dynamic) {
                nw = _this.core.s.dynamicEl[index].width || $image[0].naturalWidth || w;
            } else {
                nw = _this.core.$items.eq(index).attr('data-width') || $image[0].naturalWidth || w;
            }

            var _scale;

            if (_this.core.$outer.hasClass('lg-zoomed')) {
                scale = 1;
            } else {
                if (nw > w) {
                    _scale = nw / w;
                    scale = _scale || 2;
                }
            }

            if (fromIcon) {
                _this.pageX = $(window).width() / 2;
                _this.pageY = ($(window).height() / 2) + $(window).scrollTop();
            } else {
                _this.pageX = event.pageX || event.originalEvent.targetTouches[0].pageX;
                _this.pageY = event.pageY || event.originalEvent.targetTouches[0].pageY;
            }

            callScale();
            setTimeout(function() {
                _this.core.$outer.removeClass('lg-grabbing').addClass('lg-grab');
            }, 10);
        };

        var tapped = false;

        // event triggered after appending slide content
        _this.core.$el.on('onAferAppendSlide.lg.tm.zoom', function(event, index) {

            // Get the current element
            var $image = _this.core.$slide.eq(index).find('.lg-image');

            $image.on('dblclick', function(event) {
                actualSize(event, $image, index);
            });

            $image.on('touchstart', function(event) {
                if (!tapped) {
                    tapped = setTimeout(function() {
                        tapped = null;
                    }, 300);
                } else {
                    clearTimeout(tapped);
                    tapped = null;
                    actualSize(event, $image, index);
                }

                event.preventDefault();
            });

        });

        // Update zoom on resize and orientationchange
        $(window).on('resize.lg.zoom scroll.lg.zoom orientationchange.lg.zoom', function() {
            _this.pageX = $(window).width() / 2;
            _this.pageY = ($(window).height() / 2) + $(window).scrollTop();
            zoom(scale);
        });

        $('#lg-zoom-out').on('click.lg', function() {
            if (_this.core.$outer.find('.lg-current .lg-image').length) {
                scale -= _this.core.s.scale;
                callScale();
            }
        });

        $('#lg-zoom-in').on('click.lg', function() {
            if (_this.core.$outer.find('.lg-current .lg-image').length) {
                scale += _this.core.s.scale;
                callScale();
            }
        });

        $('#lg-actual-size').on('click.lg', function(event) {
            actualSize(event, _this.core.$slide.eq(_this.core.index).find('.lg-image'), _this.core.index, true);
        });

        // Reset zoom on slide change
        _this.core.$el.on('onBeforeSlide.lg.tm', function() {
            scale = 1;
            _this.resetZoom();
        });

        // Drag option after zoom
        _this.zoomDrag();

        _this.zoomSwipe();

    };

    // Reset zoom effect
    Zoom.prototype.resetZoom = function() {
        this.core.$outer.removeClass('lg-zoomed');
        this.core.$slide.find('.lg-img-wrap').removeAttr('style data-x data-y');
        this.core.$slide.find('.lg-image').removeAttr('style data-scale');

        // Reset pagx pagy values to center
        this.pageX = $(window).width() / 2;
        this.pageY = ($(window).height() / 2) + $(window).scrollTop();
    };

    Zoom.prototype.zoomSwipe = function() {
        var _this = this;
        var startCoords = {};
        var endCoords = {};
        var isMoved = false;

        // Allow x direction drag
        var allowX = false;

        // Allow Y direction drag
        var allowY = false;

        _this.core.$slide.on('touchstart.lg', function(e) {

            if (_this.core.$outer.hasClass('lg-zoomed')) {
                var $image = _this.core.$slide.eq(_this.core.index).find('.lg-object');

                allowY = $image.prop('offsetHeight') * $image.attr('data-scale') > _this.core.$outer.find('.lg').height();
                allowX = $image.prop('offsetWidth') * $image.attr('data-scale') > _this.core.$outer.find('.lg').width();
                if ((allowX || allowY)) {
                    e.preventDefault();
                    startCoords = {
                        x: e.originalEvent.targetTouches[0].pageX,
                        y: e.originalEvent.targetTouches[0].pageY
                    };
                }
            }

        });

        _this.core.$slide.on('touchmove.lg', function(e) {

            if (_this.core.$outer.hasClass('lg-zoomed')) {

                var _$el = _this.core.$slide.eq(_this.core.index).find('.lg-img-wrap');
                var distanceX;
                var distanceY;

                e.preventDefault();
                isMoved = true;

                endCoords = {
                    x: e.originalEvent.targetTouches[0].pageX,
                    y: e.originalEvent.targetTouches[0].pageY
                };

                // reset opacity and transition duration
                _this.core.$outer.addClass('lg-zoom-dragging');

                if (allowY) {
                    distanceY = (-Math.abs(_$el.attr('data-y'))) + (endCoords.y - startCoords.y);
                } else {
                    distanceY = -Math.abs(_$el.attr('data-y'));
                }

                if (allowX) {
                    distanceX = (-Math.abs(_$el.attr('data-x'))) + (endCoords.x - startCoords.x);
                } else {
                    distanceX = -Math.abs(_$el.attr('data-x'));
                }

                if ((Math.abs(endCoords.x - startCoords.x) > 15) || (Math.abs(endCoords.y - startCoords.y) > 15)) {

                    if (_this.core.s.useLeftForZoom) {
                        _$el.css({
                            left: distanceX + 'px',
                            top: distanceY + 'px'
                        });
                    } else {
                        _$el.css('transform', 'translate3d(' + distanceX + 'px, ' + distanceY + 'px, 0)');
                    }
                }

            }

        });

        _this.core.$slide.on('touchend.lg', function() {
            if (_this.core.$outer.hasClass('lg-zoomed')) {
                if (isMoved) {
                    isMoved = false;
                    _this.core.$outer.removeClass('lg-zoom-dragging');
                    _this.touchendZoom(startCoords, endCoords, allowX, allowY);

                }
            }
        });

    };

    Zoom.prototype.zoomDrag = function() {

        var _this = this;
        var startCoords = {};
        var endCoords = {};
        var isDraging = false;
        var isMoved = false;

        // Allow x direction drag
        var allowX = false;

        // Allow Y direction drag
        var allowY = false;

        _this.core.$slide.on('mousedown.lg.zoom', function(e) {

            // execute only on .lg-object
            var $image = _this.core.$slide.eq(_this.core.index).find('.lg-object');

            allowY = $image.prop('offsetHeight') * $image.attr('data-scale') > _this.core.$outer.find('.lg').height();
            allowX = $image.prop('offsetWidth') * $image.attr('data-scale') > _this.core.$outer.find('.lg').width();

            if (_this.core.$outer.hasClass('lg-zoomed')) {
                if ($(e.target).hasClass('lg-object') && (allowX || allowY)) {
                    e.preventDefault();
                    startCoords = {
                        x: e.pageX,
                        y: e.pageY
                    };

                    isDraging = true;

                    // ** Fix for webkit cursor issue https://code.google.com/p/chromium/issues/detail?id=26723
                    _this.core.$outer.scrollLeft += 1;
                    _this.core.$outer.scrollLeft -= 1;

                    _this.core.$outer.removeClass('lg-grab').addClass('lg-grabbing');
                }
            }
        });

        $(window).on('mousemove.lg.zoom', function(e) {
            if (isDraging) {
                var _$el = _this.core.$slide.eq(_this.core.index).find('.lg-img-wrap');
                var distanceX;
                var distanceY;

                isMoved = true;
                endCoords = {
                    x: e.pageX,
                    y: e.pageY
                };

                // reset opacity and transition duration
                _this.core.$outer.addClass('lg-zoom-dragging');

                if (allowY) {
                    distanceY = (-Math.abs(_$el.attr('data-y'))) + (endCoords.y - startCoords.y);
                } else {
                    distanceY = -Math.abs(_$el.attr('data-y'));
                }

                if (allowX) {
                    distanceX = (-Math.abs(_$el.attr('data-x'))) + (endCoords.x - startCoords.x);
                } else {
                    distanceX = -Math.abs(_$el.attr('data-x'));
                }

                if (_this.core.s.useLeftForZoom) {
                    _$el.css({
                        left: distanceX + 'px',
                        top: distanceY + 'px'
                    });
                } else {
                    _$el.css('transform', 'translate3d(' + distanceX + 'px, ' + distanceY + 'px, 0)');
                }
            }
        });

        $(window).on('mouseup.lg.zoom', function(e) {

            if (isDraging) {
                isDraging = false;
                _this.core.$outer.removeClass('lg-zoom-dragging');

                // Fix for chrome mouse move on click
                if (isMoved && ((startCoords.x !== endCoords.x) || (startCoords.y !== endCoords.y))) {
                    endCoords = {
                        x: e.pageX,
                        y: e.pageY
                    };
                    _this.touchendZoom(startCoords, endCoords, allowX, allowY);

                }

                isMoved = false;
            }

            _this.core.$outer.removeClass('lg-grabbing').addClass('lg-grab');

        });
    };

    Zoom.prototype.touchendZoom = function(startCoords, endCoords, allowX, allowY) {

        var _this = this;
        var _$el = _this.core.$slide.eq(_this.core.index).find('.lg-img-wrap');
        var $image = _this.core.$slide.eq(_this.core.index).find('.lg-object');
        var distanceX = (-Math.abs(_$el.attr('data-x'))) + (endCoords.x - startCoords.x);
        var distanceY = (-Math.abs(_$el.attr('data-y'))) + (endCoords.y - startCoords.y);
        var minY = (_this.core.$outer.find('.lg').height() - $image.prop('offsetHeight')) / 2;
        var maxY = Math.abs(($image.prop('offsetHeight') * Math.abs($image.attr('data-scale'))) - _this.core.$outer.find('.lg').height() + minY);
        var minX = (_this.core.$outer.find('.lg').width() - $image.prop('offsetWidth')) / 2;
        var maxX = Math.abs(($image.prop('offsetWidth') * Math.abs($image.attr('data-scale'))) - _this.core.$outer.find('.lg').width() + minX);

        if ((Math.abs(endCoords.x - startCoords.x) > 15) || (Math.abs(endCoords.y - startCoords.y) > 15)) {
            if (allowY) {
                if (distanceY <= -maxY) {
                    distanceY = -maxY;
                } else if (distanceY >= -minY) {
                    distanceY = -minY;
                }
            }

            if (allowX) {
                if (distanceX <= -maxX) {
                    distanceX = -maxX;
                } else if (distanceX >= -minX) {
                    distanceX = -minX;
                }
            }

            if (allowY) {
                _$el.attr('data-y', Math.abs(distanceY));
            } else {
                distanceY = -Math.abs(_$el.attr('data-y'));
            }

            if (allowX) {
                _$el.attr('data-x', Math.abs(distanceX));
            } else {
                distanceX = -Math.abs(_$el.attr('data-x'));
            }

            if (_this.core.s.useLeftForZoom) {
                _$el.css({
                    left: distanceX + 'px',
                    top: distanceY + 'px'
                });
            } else {
                _$el.css('transform', 'translate3d(' + distanceX + 'px, ' + distanceY + 'px, 0)');
            }

        }
    };

    Zoom.prototype.destroy = function() {

        var _this = this;

        // Unbind all events added by lightGallery zoom plugin
        _this.core.$el.off('.lg.zoom');
        $(window).off('.lg.zoom');
        _this.core.$slide.off('.lg.zoom');
        _this.core.$el.off('.lg.tm.zoom');
        _this.resetZoom();
        clearTimeout(_this.zoomabletimeout);
        _this.zoomabletimeout = false;
    };

    $.fn.lightGallery.modules.zoom = Zoom;

})();


}));