773 lines
29 KiB
JavaScript
773 lines
29 KiB
JavaScript
/*!
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* Lightbox v2.11.1
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* by Lokesh Dhakar
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*
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* More info:
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* http://lokeshdhakar.com/projects/lightbox2/
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*
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* Copyright Lokesh Dhakar
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* Released under the MIT license
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* https://github.com/lokesh/lightbox2/blob/master/LICENSE
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*
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* @preserve
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*/
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// Uses Node, AMD or browser globals to create a module.
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(function (root, factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(['jquery'], factory);
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} else if (typeof exports === 'object') {
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// Node. Does not work with strict CommonJS, but
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// only CommonJS-like environments that support module.exports,
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// like Node.
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module.exports = factory(require('jquery'));
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} else {
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// Browser globals (root is window)
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root.lightbox = factory(root.jQuery);
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}
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}(this, function ($) {
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function Lightbox(options) {
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this.album = [];
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this.currentImageIndex = void 0;
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this.init();
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// options
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this.options = $.extend({}, this.constructor.defaults);
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this.option(options);
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}
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// Descriptions of all options available on the demo site:
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// http://lokeshdhakar.com/projects/lightbox2/index.html#options
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Lightbox.defaults = {
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albumLabel: 'Image %1 of %2',
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alwaysShowNavOnTouchDevices: false,
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fadeDuration: 600,
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fitImagesInViewport: true,
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imageFadeDuration: 600,
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// maxWidth: 800,
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// maxHeight: 600,
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positionFromTop: 50,
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resizeDuration: 700,
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showImageNumberLabel: true,
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wrapAround: false,
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disableScrolling: false,
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/*
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Sanitize Title
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If the caption data is trusted, for example you are hardcoding it in, then leave this to false.
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This will free you to add html tags, such as links, in the caption.
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If the caption data is user submitted or from some other untrusted source, then set this to true
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to prevent xss and other injection attacks.
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*/
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sanitizeTitle: false
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//ADDED-START
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, hasVideo: true
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//ADDED-END
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};
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Lightbox.prototype.option = function(options) {
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$.extend(this.options, options);
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};
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Lightbox.prototype.imageCountLabel = function(currentImageNum, totalImages) {
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return this.options.albumLabel.replace(/%1/g, currentImageNum).replace(/%2/g, totalImages);
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};
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Lightbox.prototype.init = function() {
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var self = this;
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// Both enable and build methods require the body tag to be in the DOM.
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$(document).ready(function() {
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self.enable();
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self.build();
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});
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};
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// Loop through anchors and areamaps looking for either data-lightbox attributes or rel attributes
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// that contain 'lightbox'. When these are clicked, start lightbox.
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Lightbox.prototype.enable = function() {
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var self = this;
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$('body').on('click', 'a[rel^=lightbox], area[rel^=lightbox], a[data-lightbox], area[data-lightbox]', function(event) {
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self.start($(event.currentTarget));
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return false;
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});
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};
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// Build html for the lightbox and the overlay.
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// Attach event handlers to the new DOM elements. click click click
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Lightbox.prototype.build = function() {
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if ($('#lightbox').length > 0) {
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return;
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}
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var self = this;
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// The two root notes generated, #lightboxOverlay and #lightbox are given
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// tabindex attrs so they are focusable. We attach our keyboard event
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// listeners to these two elements, and not the document. Clicking anywhere
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// while Lightbox is opened will keep the focus on or inside one of these
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// two elements.
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//
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// We do this so we can prevent propogation of the Esc keypress when
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// Lightbox is open. This prevents it from intefering with other components
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// on the page below.
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//
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// Github issue: https://github.com/lokesh/lightbox2/issues/663
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$('<div id="lightboxOverlay" tabindex="-1" class="lightboxOverlay"></div><div id="lightbox" tabindex="-1" class="lightbox"><div class="lb-outerContainer"><div class="lb-container"><img class="lb-image" src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" alt=""/><div class="lb-nav"><a class="lb-prev" aria-label="Previous image" href="" ></a><a class="lb-next" aria-label="Next image" href="" ></a></div><div class="lb-loader"><a class="lb-cancel"></a></div></div></div><div class="lb-dataContainer"><div class="lb-data"><div class="lb-details"><span class="lb-caption"></span><span class="lb-number"></span></div><div class="lb-closeContainer"><a class="lb-close"></a></div></div></div></div>').appendTo($('body'));
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// Cache jQuery objects
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this.$lightbox = $('#lightbox');
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this.$overlay = $('#lightboxOverlay');
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this.$outerContainer = this.$lightbox.find('.lb-outerContainer');
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this.$container = this.$lightbox.find('.lb-container');
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this.$image = this.$lightbox.find('.lb-image');
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this.$nav = this.$lightbox.find('.lb-nav');
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//ADDED-START
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if(self.options.hasVideo) {
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this.$video = $('<video class="lb-video" controls autoplay></video>');
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this.$image.after(this.$video);
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this.videoBorderWidth = {
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top: parseInt(this.$video.css('border-top-width'), 10),
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right: parseInt(this.$video.css('border-right-width'), 10),
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bottom: parseInt(this.$video.css('border-bottom-width'), 10),
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left: parseInt(this.$video.css('border-left-width'), 10)
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};
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}
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//ADDED-END
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// Store css values for future lookup
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this.containerPadding = {
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top: parseInt(this.$container.css('padding-top'), 10),
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right: parseInt(this.$container.css('padding-right'), 10),
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bottom: parseInt(this.$container.css('padding-bottom'), 10),
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left: parseInt(this.$container.css('padding-left'), 10)
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};
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this.imageBorderWidth = {
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top: parseInt(this.$image.css('border-top-width'), 10),
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right: parseInt(this.$image.css('border-right-width'), 10),
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bottom: parseInt(this.$image.css('border-bottom-width'), 10),
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left: parseInt(this.$image.css('border-left-width'), 10)
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};
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// Attach event handlers to the newly minted DOM elements
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//ADDED-START
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//this.$overlay.hide().on('click', function() {
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this.$overlay.hide().add(this.$lightbox.find('.lb-dataContainer')).on('click', function() {
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//ADDED-END
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self.end();
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return false;
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});
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this.$lightbox.hide().on('click', function(event) {
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if ($(event.target).attr('id') === 'lightbox') {
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self.end();
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}
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});
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this.$outerContainer.on('click', function(event) {
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if ($(event.target).attr('id') === 'lightbox') {
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self.end();
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}
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return false;
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});
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this.$lightbox.find('.lb-prev').on('click', function() {
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if (self.currentImageIndex === 0) {
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self.changeImage(self.album.length - 1);
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} else {
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self.changeImage(self.currentImageIndex - 1);
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}
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return false;
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});
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this.$lightbox.find('.lb-next').on('click', function() {
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if (self.currentImageIndex === self.album.length - 1) {
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self.changeImage(0);
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} else {
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self.changeImage(self.currentImageIndex + 1);
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}
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return false;
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});
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/*
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Show context menu for image on right-click
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There is a div containing the navigation that spans the entire image and lives above of it. If
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you right-click, you are right clicking this div and not the image. This prevents users from
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saving the image or using other context menu actions with the image.
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To fix this, when we detect the right mouse button is pressed down, but not yet clicked, we
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set pointer-events to none on the nav div. This is so that the upcoming right-click event on
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the next mouseup will bubble down to the image. Once the right-click/contextmenu event occurs
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we set the pointer events back to auto for the nav div so it can capture hover and left-click
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events as usual.
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*/
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this.$nav.on('mousedown', function(event) {
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if (event.which === 3) {
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self.$nav.css('pointer-events', 'none');
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self.$lightbox.one('contextmenu', function() {
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setTimeout(function() {
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this.$nav.css('pointer-events', 'auto');
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}.bind(self), 0);
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});
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}
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});
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this.$lightbox.find('.lb-loader, .lb-close').on('click', function() {
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self.end();
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return false;
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});
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};
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// Show overlay and lightbox. If the image is part of a set, add siblings to album array.
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Lightbox.prototype.start = function($link) {
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var self = this;
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var $window = $(window);
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$window.on('resize', $.proxy(this.sizeOverlay, this));
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this.sizeOverlay();
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//ADDED-START
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this.$nav.mousewheel((e) => {
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var asImg = self.album[this.currentImageIndex];
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if(!asImg.type != 'video') {
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asTransform = this.$image.css('transform').replace(/[^0-9\-.,]/g, '').split(',');
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var fOldZoom = parseFloat(asTransform[0] || 1);
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var fOldTranslateX = parseFloat(asTransform[4] || 0);
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var fOldTranslateY = parseFloat(asTransform[5] || 0);
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var fOldZoom = parseFloat(asTransform[0] || 1);
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var fNewZoom = Math.min(Math.max(fOldZoom + e.deltaY / 10, 1), Math.max(asImg.width/this.$image.width(), asImg.height/this.$image.height()));
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var fTransX = fOldTranslateX + (fNewZoom - fOldZoom) * (this.$image.width()/2 - e.offsetX);
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var fTransY = fOldTranslateY + (fNewZoom - fOldZoom) * (this.$image.height()/2 - e.offsetY);
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var fTransMaxX = (fNewZoom - 1) * this.$image.width() / 2;
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var fTransMaxY = (fNewZoom - 1) * this.$image.height() / 2;
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fTransX = Math.max(Math.min(fTransX, fTransMaxX), fTransMaxX * -1);
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fTransY = Math.max(Math.min(fTransY, fTransMaxY), fTransMaxY * -1);
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this.$image.css('--scale', fNewZoom);
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this.$image.css('--translate-x', fTransX+'px');
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this.$image.css('--translate-y', fTransY+'px');
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}
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});
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//ADDED-END
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this.album = [];
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var imageNumber = 0;
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function addToAlbum($link) {
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self.album.push({
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alt: $link.attr('data-alt'),
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link: $link.attr('href'),
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title: $link.attr('data-title') || $link.attr('title')
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//ADDED-START
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, orientation: $link.attr('data-orientation')
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, type: $link.attr('data-type')
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, id: $link.attr('data-id')
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//ADDED-END
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});
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}
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// Support both data-lightbox attribute and rel attribute implementations
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var dataLightboxValue = $link.attr('data-lightbox');
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var $links;
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if (dataLightboxValue) {
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$links = $($link.prop('tagName') + '[data-lightbox="' + dataLightboxValue + '"]');
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for (var i = 0; i < $links.length; i = ++i) {
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addToAlbum($($links[i]));
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if ($links[i] === $link[0]) {
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imageNumber = i;
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}
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}
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} else {
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if ($link.attr('rel') === 'lightbox') {
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// If image is not part of a set
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addToAlbum($link);
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} else {
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// If image is part of a set
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$links = $($link.prop('tagName') + '[rel="' + $link.attr('rel') + '"]');
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for (var j = 0; j < $links.length; j = ++j) {
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addToAlbum($($links[j]));
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if ($links[j] === $link[0]) {
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imageNumber = j;
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}
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}
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}
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}
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// Position Lightbox
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//ADDED-START
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//var top = $window.scrollTop() + this.options.positionFromTop;
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//var left = $window.scrollLeft();
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this.$lightbox/*.css({
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top: top + 'px',
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left: left + 'px'
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})*/.fadeIn(this.options.fadeDuration);
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//ADDED-END
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// Disable scrolling of the page while open
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if (this.options.disableScrolling) {
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$('body').addClass('lb-disable-scrolling');
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}
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this.changeImage(imageNumber);
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};
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// Hide most UI elements in preparation for the animated resizing of the lightbox.
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Lightbox.prototype.changeImage = function(imageNumber) {
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var self = this;
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var filename = this.album[imageNumber].link;
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var filetype = filename.split('.').slice(-1)[0];
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var $image = this.$lightbox.find('.lb-image');
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// Disable keyboard nav during transitions
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this.disableKeyboardNav();
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// Show loading state
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this.$overlay.fadeIn(this.options.fadeDuration);
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$('.lb-loader').fadeIn('slow');
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//ADDED-START
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//this.$lightbox.find('.lb-image, .lb-nav, .lb-prev, .lb-next, .lb-dataContainer, .lb-numbers, .lb-caption').hide();
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this.$lightbox.find('.lb-image, .lb-video, .lb-nav, .lb-prev, .lb-next, .lb-number, .lb-caption, .lb-close').hide();
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this.$image.css({'--scale': '1', '--translate-x': '0', '--translate-y': '0'});
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self.$lightbox.find('.lb-dataContainer').css({width:'200px', height:'30px'});
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//ADDED-END
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this.$outerContainer.addClass('animating');
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//ADDED-START
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var getMaxSizes = function(iMediaWidth, iMediaHeight, sMediaType) {
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var iWindowWidth = $(window).width();
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var iWindowHeight = $(window).height();
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var oBorder = (sMediaType=='image')?self.imageBorderWidth:self.videoBorderWidth;
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var iMaxMediaWidth = iWindowWidth - self.containerPadding.left - self.containerPadding.right - oBorder.left - oBorder.right;
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var iMaxMediaHeight = iWindowHeight - self.containerPadding.top - self.containerPadding.bottom - oBorder.top - oBorder.bottom - self.options.positionFromTop;
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var iDataMaxWidth = self.$lightbox.find('.lb-dataContainer').width(), iDataMaxHeight = self.$lightbox.find('.lb-dataContainer').height();
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var iImageRatio = iMediaWidth / iMediaHeight;
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//Case horizontal
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var iHeightH = Math.min(iMaxMediaHeight, iMediaHeight);
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var iWidthH = Math.min(iHeightH * iImageRatio, iMaxMediaWidth - iDataMaxWidth);
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var iSurfaceH = Math.min(iHeightH, iWidthH / iImageRatio) * iWidthH;
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//Case vertical
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var iWidthV = Math.min(iMaxMediaWidth, iMediaWidth);
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var iHeightV = Math.min(iWidthV / iImageRatio, iMaxMediaHeight - iDataMaxHeight);
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var iSurfaceV = Math.min(iWidthV, iHeightV * iImageRatio) * iHeightV;
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var sDirection = (iSurfaceV > iSurfaceH)?'vertical':'horizontal';
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if(sDirection == 'vertical') iMaxMediaHeight -= iDataMaxHeight;
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else iMaxMediaWidth -= iDataMaxWidth;
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return {maxWidth: iMaxMediaWidth, maxHeight: iMaxMediaHeight, direction: sDirection};
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};
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updateHash('media', self.album[imageNumber].id);
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if(self.options.hasVideo) {
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var $lbContainer = this.$lightbox.find('.lb-container');
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var $hasVideoNav = $lbContainer.hasClass('lb-video-nav');
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if(self.album[imageNumber].type == 'video') {
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this.$video.on('loadedmetadata', function(){
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var $This = $(this);
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var oMaxSizes = getMaxSizes(this.videoWidth, this.videoHeight, 'video');
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maxVideoWidth = oMaxSizes.maxWidth;
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maxVideoHeight = oMaxSizes.maxHeight;
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self.$lightbox.removeClass('vertical horizontal').addClass(oMaxSizes.direction);
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//TODO merge with image
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if(self.options.fitImagesInViewport) {
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//Check if image size is larger than maxWidth|maxHeight in settings
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if(self.options.maxWidth && self.options.maxWidth < maxVideoWidth) maxVideoWidth = self.options.maxWidth;
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if(self.options.maxHeight && self.options.maxHeight < maxVideoHeight) maxVideoHeight = self.options.maxHeight;
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}
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else {
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maxVideoWidth = self.options.maxWidth || this.videoWidth || maxVideoWidth;
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maxVideoHeight = self.options.maxHeight || this.videoHeight || maxVideoHeight;
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}
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//Is the current image's width or height is greater than the maxImageWidth or maxImageHeight
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//option than we need to size down while maintaining the aspect ratio.
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if((this.videoWidth > maxVideoWidth) || (this.videoHeight > maxVideoHeight)) {
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if ((this.videoWidth / maxVideoWidth) > (this.videoHeight / maxVideoHeight)) {
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videoWidth = maxVideoWidth;
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videoHeight = Math.round(this.videoHeight / (this.videoWidth / videoWidth));
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} else {
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videoHeight = maxVideoHeight;
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videoWidth = Math.round(this.videoWidth / (this.videoHeight / videoHeight));
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}
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}
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else {
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videoWidth = this.videoWidth;
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videoHeight = this.videoHeight;
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}
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$This.width(videoWidth);
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$This.height(videoHeight);
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self.sizeContainer($This.width(), $This.height(), 'video');
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$This.off('loadedmetadata');
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});
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this.currentImageIndex = imageNumber;
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this.$video.attr('src', self.album[imageNumber].link);
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if(!$hasVideoNav) $lbContainer.addClass('lb-video-nav');
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return;
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}
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else {
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this.$video.attr('src', '');
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if($hasVideoNav) $lbContainer.removeClass('lb-video-nav');
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}
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}
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//ADDED-END
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// When image to show is preloaded, we send the width and height to sizeContainer()
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var preloader = new Image();
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preloader.onload = function() {
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var $preloader;
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var imageHeight;
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var imageWidth;
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var maxImageHeight;
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var maxImageWidth;
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var windowHeight;
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var windowWidth;
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$image.attr({
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'alt': self.album[imageNumber].alt,
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'src': filename
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});
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$preloader = $(preloader);
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//ADDED-START
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if(Math.abs(self.album[imageNumber].orientation) == 90 && preloader.width > preloader.height) {
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var sWidth = preloader.width;
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preloader.width = preloader.height;
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preloader.height = sWidth;
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}
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self.album[imageNumber].width = preloader.width;
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self.album[imageNumber].height = preloader.height;
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//ADDED-END
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$image.width(preloader.width);
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$image.height(preloader.height);
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windowWidth = $(window).width();
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windowHeight = $(window).height();
|
|
|
|
// Calculate the max image dimensions for the current viewport.
|
|
// Take into account the border around the image and an additional 10px gutter on each side.
|
|
//ADDED-START
|
|
//maxImageWidth = windowWidth - self.containerPadding.left - self.containerPadding.right - self.imageBorderWidth.left - self.imageBorderWidth.right - 20;
|
|
//maxImageHeight = windowHeight - self.containerPadding.top - self.containerPadding.bottom - self.imageBorderWidth.top - self.imageBorderWidth.bottom - self.options.positionFromTop - 70;
|
|
var oMaxSizes = getMaxSizes(preloader.width, preloader.height, 'image');
|
|
maxImageWidth = oMaxSizes.maxWidth;
|
|
maxImageHeight = oMaxSizes.maxHeight;
|
|
self.$lightbox.removeClass('vertical horizontal').addClass(oMaxSizes.direction);
|
|
//ADDED-END
|
|
|
|
/*
|
|
SVGs that don't have width and height attributes specified are reporting width and height
|
|
values of 0 in Firefox 47 and IE11 on Windows. To fix, we set the width and height to the max
|
|
dimensions for the viewport rather than 0 x 0.
|
|
|
|
https://github.com/lokesh/lightbox2/issues/552
|
|
*/
|
|
|
|
if (filetype === 'svg') {
|
|
if ((preloader.width === 0) || preloader.height === 0) {
|
|
$image.width(maxImageWidth);
|
|
$image.height(maxImageHeight);
|
|
}
|
|
}
|
|
|
|
// Fit image inside the viewport.
|
|
if (self.options.fitImagesInViewport) {
|
|
|
|
// Check if image size is larger then maxWidth|maxHeight in settings
|
|
if (self.options.maxWidth && self.options.maxWidth < maxImageWidth) {
|
|
maxImageWidth = self.options.maxWidth;
|
|
}
|
|
if (self.options.maxHeight && self.options.maxHeight < maxImageHeight) {
|
|
maxImageHeight = self.options.maxHeight;
|
|
}
|
|
|
|
} else {
|
|
maxImageWidth = self.options.maxWidth || preloader.width || maxImageWidth;
|
|
maxImageHeight = self.options.maxHeight || preloader.height || maxImageHeight;
|
|
}
|
|
|
|
// Is the current image's width or height is greater than the maxImageWidth or maxImageHeight
|
|
// option than we need to size down while maintaining the aspect ratio.
|
|
if ((preloader.width > maxImageWidth) || (preloader.height > maxImageHeight)) {
|
|
if ((preloader.width / maxImageWidth) > (preloader.height / maxImageHeight)) {
|
|
imageWidth = maxImageWidth;
|
|
imageHeight = parseInt(preloader.height / (preloader.width / imageWidth), 10);
|
|
$image.width(imageWidth);
|
|
$image.height(imageHeight);
|
|
} else {
|
|
imageHeight = maxImageHeight;
|
|
imageWidth = parseInt(preloader.width / (preloader.height / imageHeight), 10);
|
|
$image.width(imageWidth);
|
|
$image.height(imageHeight);
|
|
}
|
|
}
|
|
//ADDED-START
|
|
//self.sizeContainer($image.width(), $image.height());
|
|
self.sizeContainer($image.width(), $image.height(), 'image');
|
|
//ADDED-END
|
|
};
|
|
|
|
// Preload image before showing
|
|
preloader.src = this.album[imageNumber].link;
|
|
this.currentImageIndex = imageNumber;
|
|
};
|
|
|
|
// Stretch overlay to fit the viewport
|
|
Lightbox.prototype.sizeOverlay = function(e) {
|
|
var self = this;
|
|
|
|
/*
|
|
We use a setTimeout 0 to pause JS execution and let the rendering catch-up.
|
|
Why do this? If the `disableScrolling` option is set to true, a class is added to the body
|
|
tag that disables scrolling and hides the scrollbar. We want to make sure the scrollbar is
|
|
hidden before we measure the document width, as the presence of the scrollbar will affect the
|
|
number.
|
|
*/
|
|
//ADDED-START
|
|
/*
|
|
setTimeout(function() {
|
|
self.$overlay
|
|
.width($(document).width())
|
|
.height($(document).height());
|
|
}, 0);
|
|
*/
|
|
if(e) {
|
|
if(typeof oResizeTimer != 'undefined') clearTimeout(oResizeTimer);
|
|
oResizeTimer = setTimeout(function(){self.changeImage(self.currentImageIndex);}, 200);
|
|
}
|
|
//ADDED-END
|
|
};
|
|
|
|
// Animate the size of the lightbox to fit the image we are showing
|
|
// This method also shows the the image.
|
|
//ADDED-START
|
|
//Lightbox.prototype.sizeContainer = function(imageWidth, imageHeight) {
|
|
Lightbox.prototype.sizeContainer = function(imageWidth, imageHeight, media) {
|
|
media = media || 'image';
|
|
//ADDED-END
|
|
var self = this;
|
|
|
|
var oldWidth = this.$outerContainer.outerWidth();
|
|
var oldHeight = this.$outerContainer.outerHeight();
|
|
//ADDED-START
|
|
//var newWidth = imageWidth + this.containerPadding.left + this.containerPadding.right + this.imageBorderWidth.left + this.imageBorderWidth.right;
|
|
//var newHeight = imageHeight + this.containerPadding.top + this.containerPadding.bottom + this.imageBorderWidth.top + this.imageBorderWidth.bottom;
|
|
var mediaBorderWidth = (media=='image')?this.imageBorderWidth:this.videoBorderWidth;
|
|
var newWidth = imageWidth + this.containerPadding.left + this.containerPadding.right + mediaBorderWidth.left + mediaBorderWidth.right;
|
|
var newHeight = imageHeight + this.containerPadding.top + this.containerPadding.bottom + mediaBorderWidth.top + mediaBorderWidth.bottom;
|
|
//ADDED-END
|
|
|
|
function postResize() {
|
|
//ADDED-START
|
|
//self.$lightbox.find('.lb-dataContainer').width(newWidth);
|
|
if(self.$lightbox.hasClass('vertical')) self.$lightbox.find('.lb-dataContainer').width(newWidth);
|
|
else self.$lightbox.find('.lb-dataContainer').height(newHeight);
|
|
//ADDED-END
|
|
self.$lightbox.find('.lb-prevLink').height(newHeight);
|
|
self.$lightbox.find('.lb-nextLink').height(newHeight);
|
|
|
|
// Set focus on one of the two root nodes so keyboard events are captured.
|
|
self.$overlay.focus();
|
|
|
|
self.showImage();
|
|
}
|
|
|
|
if (oldWidth !== newWidth || oldHeight !== newHeight) {
|
|
this.$outerContainer.animate({
|
|
width: newWidth,
|
|
height: newHeight
|
|
}, this.options.resizeDuration, 'swing', function() {
|
|
postResize();
|
|
});
|
|
} else {
|
|
postResize();
|
|
}
|
|
};
|
|
|
|
// Display the image and its details and begin preload neighboring images.
|
|
Lightbox.prototype.showImage = function() {
|
|
this.$lightbox.find('.lb-loader').stop(true).hide();
|
|
|
|
//ADDED-START
|
|
//this.$lightbox.find('.lb-image').fadeIn(this.options.imageFadeDuration);
|
|
if(this.options.hasVideo && this.album[this.currentImageIndex].type == 'video') this.$lightbox.find('.lb-video').fadeIn(this.options.imageFadeDuration);
|
|
else this.$lightbox.find('.lb-image').fadeIn(this.options.imageFadeDuration);
|
|
//ADDED-END
|
|
|
|
this.updateNav();
|
|
this.updateDetails();
|
|
this.preloadNeighboringImages();
|
|
this.enableKeyboardNav();
|
|
};
|
|
|
|
// Display previous and next navigation if appropriate.
|
|
Lightbox.prototype.updateNav = function() {
|
|
// Check to see if the browser supports touch events. If so, we take the conservative approach
|
|
// and assume that mouse hover events are not supported and always show prev/next navigation
|
|
// arrows in image sets.
|
|
var alwaysShowNav = false;
|
|
try {
|
|
document.createEvent('TouchEvent');
|
|
alwaysShowNav = (this.options.alwaysShowNavOnTouchDevices) ? true : false;
|
|
} catch (e) {}
|
|
|
|
this.$lightbox.find('.lb-nav').show();
|
|
|
|
if (this.album.length > 1) {
|
|
if (this.options.wrapAround) {
|
|
if (alwaysShowNav) {
|
|
this.$lightbox.find('.lb-prev, .lb-next').css('opacity', '1');
|
|
}
|
|
this.$lightbox.find('.lb-prev, .lb-next').show();
|
|
} else {
|
|
if (this.currentImageIndex > 0) {
|
|
this.$lightbox.find('.lb-prev').show();
|
|
if (alwaysShowNav) {
|
|
this.$lightbox.find('.lb-prev').css('opacity', '1');
|
|
}
|
|
}
|
|
if (this.currentImageIndex < this.album.length - 1) {
|
|
this.$lightbox.find('.lb-next').show();
|
|
if (alwaysShowNav) {
|
|
this.$lightbox.find('.lb-next').css('opacity', '1');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
// Display caption, image number, and closing button.
|
|
Lightbox.prototype.updateDetails = function() {
|
|
var self = this;
|
|
|
|
// Enable anchor clicks in the injected caption html.
|
|
// Thanks Nate Wright for the fix. @https://github.com/NateWr
|
|
if (typeof this.album[this.currentImageIndex].title !== 'undefined' &&
|
|
this.album[this.currentImageIndex].title !== '') {
|
|
var $caption = this.$lightbox.find('.lb-caption');
|
|
if (this.options.sanitizeTitle) {
|
|
$caption.text(this.album[this.currentImageIndex].title);
|
|
} else {
|
|
$caption.html(this.album[this.currentImageIndex].title);
|
|
}
|
|
//ADDED-START
|
|
//$caption.fadeIn('fast');
|
|
$caption.add(this.$lightbox.find('.lb-close')).fadeIn('fast');
|
|
//ADDED-END
|
|
}
|
|
|
|
if (this.album.length > 1 && this.options.showImageNumberLabel) {
|
|
var labelText = this.imageCountLabel(this.currentImageIndex + 1, this.album.length);
|
|
//ADDED-START
|
|
//this.$lightbox.find('.lb-number').text(labelText).fadeIn('fast');
|
|
this.$lightbox.find('.lb-number').empty().append(labelText).fadeIn('fast');
|
|
//ADDED-END
|
|
} else {
|
|
this.$lightbox.find('.lb-number').hide();
|
|
}
|
|
|
|
this.$outerContainer.removeClass('animating');
|
|
|
|
this.$lightbox.find('.lb-dataContainer').fadeIn(this.options.resizeDuration, function() {
|
|
return self.sizeOverlay();
|
|
});
|
|
};
|
|
|
|
// Preload previous and next images in set.
|
|
Lightbox.prototype.preloadNeighboringImages = function() {
|
|
if (this.album.length > this.currentImageIndex + 1) {
|
|
var preloadNext = new Image();
|
|
preloadNext.src = this.album[this.currentImageIndex + 1].link;
|
|
}
|
|
if (this.currentImageIndex > 0) {
|
|
var preloadPrev = new Image();
|
|
preloadPrev.src = this.album[this.currentImageIndex - 1].link;
|
|
}
|
|
};
|
|
|
|
Lightbox.prototype.enableKeyboardNav = function() {
|
|
this.$lightbox.on('keyup.keyboard', $.proxy(this.keyboardAction, this));
|
|
this.$overlay.on('keyup.keyboard', $.proxy(this.keyboardAction, this));
|
|
};
|
|
|
|
Lightbox.prototype.disableKeyboardNav = function() {
|
|
this.$lightbox.off('.keyboard');
|
|
this.$overlay.off('.keyboard');
|
|
};
|
|
|
|
Lightbox.prototype.keyboardAction = function(event) {
|
|
var KEYCODE_ESC = 27;
|
|
var KEYCODE_LEFTARROW = 37;
|
|
var KEYCODE_RIGHTARROW = 39;
|
|
|
|
var keycode = event.keyCode;
|
|
|
|
if (keycode === KEYCODE_ESC) {
|
|
// Prevent bubbling so as to not affect other components on the page.
|
|
event.stopPropagation();
|
|
this.end();
|
|
} else if (keycode === KEYCODE_LEFTARROW) {
|
|
if (this.currentImageIndex !== 0) {
|
|
this.changeImage(this.currentImageIndex - 1);
|
|
} else if (this.options.wrapAround && this.album.length > 1) {
|
|
this.changeImage(this.album.length - 1);
|
|
}
|
|
} else if (keycode === KEYCODE_RIGHTARROW) {
|
|
if (this.currentImageIndex !== this.album.length - 1) {
|
|
this.changeImage(this.currentImageIndex + 1);
|
|
} else if (this.options.wrapAround && this.album.length > 1) {
|
|
this.changeImage(0);
|
|
}
|
|
}
|
|
};
|
|
|
|
// Closing time. :-(
|
|
Lightbox.prototype.end = function() {
|
|
this.disableKeyboardNav();
|
|
|
|
//ADDED-START
|
|
if(this.options.hasVideo) {
|
|
var $lbContainer = this.$lightbox.find('.lb-container');
|
|
var $hasVideoNav = $lbContainer.hasClass('lb-video-nav');
|
|
this.$video.attr('src', '');
|
|
|
|
if($hasVideoNav) $lbContainer.removeClass('lb-video-nav');
|
|
}
|
|
flushHash();
|
|
//ADDED-END
|
|
|
|
$(window).off('resize', this.sizeOverlay);
|
|
this.$nav.off('mousewheel');
|
|
this.$lightbox.fadeOut(this.options.fadeDuration);
|
|
this.$overlay.fadeOut(this.options.fadeDuration);
|
|
|
|
if (this.options.disableScrolling) {
|
|
$('body').removeClass('lb-disable-scrolling');
|
|
}
|
|
};
|
|
|
|
return new Lightbox();
|
|
}));
|