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| − | <html>
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| − | <script type="text/javascript">
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| − | /*!
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| − | * Lightbox v2.8.1
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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 2007, 2015 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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| | | | |
| − | // 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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| − |
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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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| − |
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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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| − |
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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: 500,
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| − | fitImagesInViewport: true,
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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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| − | };
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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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| − |
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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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| − |
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| − | Lightbox.prototype.init = function() {
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| − | this.enable();
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| − | this.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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| − |
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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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| − | var self = this;
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| − | $('<div id="lightboxOverlay" class="lightboxOverlay"></div><div id="lightbox" class="lightbox"><div class="lb-outerContainer"><div class="lb-container"><img class="lb-image" src="data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" /><div class="lb-nav"><a class="lb-prev" href="" ></a><a class="lb-next" href="" ></a></div><div class="lb-loader"><a class="lb-cancel"></a></div></div></div><div class="lb-dataContainer"><div class="lb-data"><div class="lb-details"><span class="lb-caption"></span><span class="lb-number"></span></div><div class="lb-closeContainer"><a class="lb-close"></a></div></div></div></div>').appendTo($('body'));
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| − |
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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.$lightbox.find('.lb-container');
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| − |
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| − | // Store css values for future lookup
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| − | this.containerTopPadding = parseInt(this.$container.css('padding-top'), 10);
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| − | this.containerRightPadding = parseInt(this.$container.css('padding-right'), 10);
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| − | this.containerBottomPadding = parseInt(this.$container.css('padding-bottom'), 10);
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| − | this.containerLeftPadding = parseInt(this.$container.css('padding-left'), 10);
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| − |
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| − | // Attach event handlers to the newly minted DOM elements
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| − | this.$overlay.hide().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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| − | 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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| − | return false;
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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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| − |
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| − | this.$lightbox.find('.lb-prev').on('click', function() {
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| − | if (self.currentImageIndex === 0) {
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| − | self.changeImage(self.album.length - 1);
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| − | } else {
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| − | self.changeImage(self.currentImageIndex - 1);
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| − | }
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| − | return false;
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| − | });
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| − |
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| − | this.$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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| − | this.$lightbox.find('.lb-loader, .lb-close').on('click', function() {
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| − | self.end();
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| − | return false;
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| − | });
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| − | };
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| − |
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| − | // Show overlay and lightbox. If the image is part of a set, add siblings to album array.
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| − | Lightbox.prototype.start = function($link) {
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| − | var self = this;
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| − | var $window = $(window);
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| − |
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| − | $window.on('resize', $.proxy(this.sizeOverlay, this));
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| − |
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| − | $('select, object, embed').css({
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| − | visibility: 'hidden'
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| − | });
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| − |
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| − | this.sizeOverlay();
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| − |
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| − | this.album = [];
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| − | var imageNumber = 0;
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| − |
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| − | function addToAlbum($link) {
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| − | self.album.push({
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| − | link: $link.attr('href'),
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| − | title: $link.attr('data-title') || $link.attr('title')
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| − | });
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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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| − |
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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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| − |
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| − | // Position Lightbox
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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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| − |
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| − | this.changeImage(imageNumber);
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| − | };
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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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| − |
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| − | this.disableKeyboardNav();
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| − | var $image = this.$lightbox.find('.lb-image');
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| − |
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| − | this.$overlay.fadeIn(this.options.fadeDuration);
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| − |
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| − | $('.lb-loader').fadeIn('slow');
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| − | this.$lightbox.find('.lb-image, .lb-nav, .lb-prev, .lb-next, .lb-dataContainer, .lb-numbers, .lb-caption').hide();
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| − |
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| − | this.$outerContainer.addClass('animating');
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| − |
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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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| − |
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| − | $image.attr('src', self.album[imageNumber].link);
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| − |
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| − | $preloader = $(preloader);
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| − |
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| − | $image.width(preloader.width);
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| − | $image.height(preloader.height);
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| − |
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| − | if (self.options.fitImagesInViewport) {
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| − | // Fit image inside the viewport.
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| − | // Take into account the border around the image and an additional 10px gutter on each side.
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| − |
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| − | windowWidth = $(window).width();
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| − | windowHeight = $(window).height();
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| − | maxImageWidth = windowWidth - self.containerLeftPadding - self.containerRightPadding - 20;
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| − | maxImageHeight = windowHeight - self.containerTopPadding - self.containerBottomPadding - 120;
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| − |
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| − | // Check if image size is larger then maxWidth|maxHeight in settings
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| − | if (self.options.maxWidth && self.options.maxWidth < maxImageWidth) {
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| − | maxImageWidth = self.options.maxWidth;
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| − | }
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| − | if (self.options.maxHeight && self.options.maxHeight < maxImageWidth) {
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| − | maxImageHeight = self.options.maxHeight;
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| − | }
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| − |
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| − | // Is there a fitting issue?
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| − | if ((preloader.width > maxImageWidth) || (preloader.height > maxImageHeight)) {
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| − | if ((preloader.width / maxImageWidth) > (preloader.height / maxImageHeight)) {
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| − | imageWidth = maxImageWidth;
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| − | imageHeight = parseInt(preloader.height / (preloader.width / imageWidth), 10);
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| − | $image.width(imageWidth);
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| − | $image.height(imageHeight);
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| − | } else {
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| − | imageHeight = maxImageHeight;
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| − | imageWidth = parseInt(preloader.width / (preloader.height / imageHeight), 10);
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| − | $image.width(imageWidth);
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| − | $image.height(imageHeight);
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| − | }
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| − | }
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| − | }
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| − | self.sizeContainer($image.width(), $image.height());
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| − | };
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| − |
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| − | preloader.src = this.album[imageNumber].link;
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| − | this.currentImageIndex = imageNumber;
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| − | };
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| − |
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| − | // Stretch overlay to fit the viewport
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| − | Lightbox.prototype.sizeOverlay = function() {
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| − | this.$overlay
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| − | .width($(window).width())
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| − | .height($(document).height());
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| − | };
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| − |
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| − | // Animate the size of the lightbox to fit the image we are showing
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| − | Lightbox.prototype.sizeContainer = function(imageWidth, imageHeight) {
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| − | var self = this;
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| − |
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| − | var oldWidth = this.$outerContainer.outerWidth();
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| − | var oldHeight = this.$outerContainer.outerHeight();
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| − | var newWidth = imageWidth + this.containerLeftPadding + this.containerRightPadding;
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| − | var newHeight = imageHeight + this.containerTopPadding + this.containerBottomPadding;
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| − |
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| − | function postResize() {
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| − | self.$lightbox.find('.lb-dataContainer').width(newWidth);
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| − | self.$lightbox.find('.lb-prevLink').height(newHeight);
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| − | self.$lightbox.find('.lb-nextLink').height(newHeight);
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| − | self.showImage();
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| − | }
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| − |
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| − | if (oldWidth !== newWidth || oldHeight !== newHeight) {
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| − | this.$outerContainer.animate({
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| − | width: newWidth,
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| − | height: newHeight
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| − | }, this.options.resizeDuration, 'swing', function() {
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| − | postResize();
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| − | });
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| − | } else {
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| − | postResize();
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| − | }
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| − | };
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| − |
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| − | // Display the image and its details and begin preload neighboring images.
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| − | Lightbox.prototype.showImage = function() {
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| − | this.$lightbox.find('.lb-loader').stop(true).hide();
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| − | this.$lightbox.find('.lb-image').fadeIn('slow');
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| − |
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| − | this.updateNav();
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| − | this.updateDetails();
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| − | this.preloadNeighboringImages();
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| − | this.enableKeyboardNav();
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| − | };
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| − |
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| − | // Display previous and next navigation if appropriate.
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| − | Lightbox.prototype.updateNav = function() {
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| − | // Check to see if the browser supports touch events. If so, we take the conservative approach
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| − | // and assume that mouse hover events are not supported and always show prev/next navigation
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| − | // arrows in image sets.
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| − | var alwaysShowNav = false;
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| − | try {
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| − | document.createEvent('TouchEvent');
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| − | alwaysShowNav = (this.options.alwaysShowNavOnTouchDevices) ? true : false;
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| − | } catch (e) {}
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| − |
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| − | this.$lightbox.find('.lb-nav').show();
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| − |
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| − | if (this.album.length > 1) {
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| − | if (this.options.wrapAround) {
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| − | if (alwaysShowNav) {
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| − | this.$lightbox.find('.lb-prev, .lb-next').css('opacity', '1');
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| − | }
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| − | this.$lightbox.find('.lb-prev, .lb-next').show();
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| − | } else {
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| − | if (this.currentImageIndex > 0) {
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| − | this.$lightbox.find('.lb-prev').show();
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| − | if (alwaysShowNav) {
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| − | this.$lightbox.find('.lb-prev').css('opacity', '1');
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| − | }
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| − | }
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| − | if (this.currentImageIndex < this.album.length - 1) {
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| − | this.$lightbox.find('.lb-next').show();
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| − | if (alwaysShowNav) {
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| − | this.$lightbox.find('.lb-next').css('opacity', '1');
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| − | }
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| − | }
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| − | }
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| − | }
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| − | };
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| − |
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| − | // Display caption, image number, and closing button.
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| − | Lightbox.prototype.updateDetails = function() {
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| − | var self = this;
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| − |
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| − | // Enable anchor clicks in the injected caption html.
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| − | // Thanks Nate Wright for the fix. @https://github.com/NateWr
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| − | if (typeof this.album[this.currentImageIndex].title !== 'undefined' &&
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| − | this.album[this.currentImageIndex].title !== '') {
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| − | this.$lightbox.find('.lb-caption')
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| − | .html(this.album[this.currentImageIndex].title)
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| − | .fadeIn('fast')
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| − | .find('a').on('click', function(event) {
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| − | if ($(this).attr('target') !== undefined) {
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| − | window.open($(this).attr('href'), $(this).attr('target'));
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| − | } else {
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| − | location.href = $(this).attr('href');
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| − | }
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| − | });
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| − | }
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| − |
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| − | if (this.album.length > 1 && this.options.showImageNumberLabel) {
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| − | var labelText = this.imageCountLabel(this.currentImageIndex + 1, this.album.length);
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| − | this.$lightbox.find('.lb-number').text(labelText).fadeIn('fast');
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| − | } else {
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| − | this.$lightbox.find('.lb-number').hide();
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| − | }
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| − |
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| − | this.$outerContainer.removeClass('animating');
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| − |
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| − | this.$lightbox.find('.lb-dataContainer').fadeIn(this.options.resizeDuration, function() {
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| − | return self.sizeOverlay();
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| − | });
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| − | };
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| − |
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| − | // Preload previous and next images in set.
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| − | Lightbox.prototype.preloadNeighboringImages = function() {
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| − | if (this.album.length > this.currentImageIndex + 1) {
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| − | var preloadNext = new Image();
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| − | preloadNext.src = this.album[this.currentImageIndex + 1].link;
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| − | }
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| − | if (this.currentImageIndex > 0) {
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| − | var preloadPrev = new Image();
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| − | preloadPrev.src = this.album[this.currentImageIndex - 1].link;
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| − | }
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| − | };
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| − |
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| − | Lightbox.prototype.enableKeyboardNav = function() {
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| − | $(document).on('keyup.keyboard', $.proxy(this.keyboardAction, this));
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| − | };
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| − |
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| − | Lightbox.prototype.disableKeyboardNav = function() {
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| − | $(document).off('.keyboard');
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| − | };
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| − |
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| − | Lightbox.prototype.keyboardAction = function(event) {
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| − | var KEYCODE_ESC = 27;
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| − | var KEYCODE_LEFTARROW = 37;
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| − | var KEYCODE_RIGHTARROW = 39;
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| − |
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| − | var keycode = event.keyCode;
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| − | var key = String.fromCharCode(keycode).toLowerCase();
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| − | if (keycode === KEYCODE_ESC || key.match(/x|o|c/)) {
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| − | this.end();
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| − | } else if (key === 'p' || keycode === KEYCODE_LEFTARROW) {
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| − | if (this.currentImageIndex !== 0) {
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| − | this.changeImage(this.currentImageIndex - 1);
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| − | } else if (this.options.wrapAround && this.album.length > 1) {
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| − | this.changeImage(this.album.length - 1);
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| − | }
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| − | } else if (key === 'n' || keycode === KEYCODE_RIGHTARROW) {
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| − | if (this.currentImageIndex !== this.album.length - 1) {
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| − | this.changeImage(this.currentImageIndex + 1);
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| − | } else if (this.options.wrapAround && this.album.length > 1) {
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| − | this.changeImage(0);
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| − | }
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| − | }
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| − | };
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| − |
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| − | // Closing time. :-(
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| − | Lightbox.prototype.end = function() {
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| − | this.disableKeyboardNav();
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| − | $(window).off('resize', this.sizeOverlay);
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| − | this.$lightbox.fadeOut(this.options.fadeDuration);
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| − | this.$overlay.fadeOut(this.options.fadeDuration);
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| − | $('select, object, embed').css({
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| − | visibility: 'visible'
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| − | });
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| − | };
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| − |
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| − | return new Lightbox();
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| − | }));
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| − |
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| − | </script>
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| − | </html>
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