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GitHub Custom Emojis

Add custom emojis from json source

目前为 2016-03-12 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         GitHub Custom Emojis
  3. // @version      0.1.6
  4. // @description  Add custom emojis from json source
  5. // @namespace    https://github.com/StylishThemes
  6. // @include      /https?://((gist)\.)?github\.com/
  7. // @grant        GM_addStyle
  8. // @grant        GM_getValue
  9. // @grant        GM_setValue
  10. // @grant        GM_xmlhttpRequest
  11. // @grant        GM_info
  12. // @run-at       document-end
  13. // @require      https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js
  14. // @require      https://greasyfork.org/scripts/16936-ichord-caret-js/code/ichord-Caretjs.js?version=106431
  15. // @require      https://greasyfork.org/scripts/16996-ichord-at-js-mod/code/ichord-Atjs-mod.js?version=109194
  16. // @require      https://cdnjs.cloudflare.com/ajax/libs/ion-rangeslider/2.1.2/js/ion.rangeSlider.min.js
  17. // ==/UserScript==
  18. /* global jQuery, GM_addStyle, GM_getValue, GM_setValue, GM_xmlhttpRequest, GM_info */
  19. /* eslint-disable indent, quotes */
  20. (function($) {
  21.   'use strict';
  22.  
  23.   var ghe = {
  24.  
  25.     version : GM_info.script.version,
  26.  
  27.     vars : {
  28.       // delay until package.json allowed to load
  29.       delay : 8.64e7, // 24 hours in milliseconds
  30.  
  31.       // base url to fetch package.json
  32.       root : 'https://raw.githubusercontent.com/StylishThemes/GitHub-Custom-Emojis/master/',
  33.       emojiClass : 'ghe-custom-emoji',
  34.       emojiTemplate : ':_${name}:',
  35.       maxEmojiZoom : 3,
  36.       maxEmojiHeight : 150,
  37.  
  38.       // Keyboard shortcut to open panel
  39.       keyboardOpen : 'g+=',
  40.       keyboardDelay : 1000
  41.     },
  42.  
  43.     regex : {
  44.       // nodes to skip while traversing the dom
  45.       skipElm    : /^(script|style|svg|iframe|br|meta|link|textarea|input|code|pre)$/i,
  46.       // emoji template
  47.       template   : /\$\{name\}/,
  48.       // character to escape in regex
  49.       charsToEsc : /[-\/\\^$*+?.()|[\]{}]/g
  50.     },
  51.  
  52.     defaults : {
  53.       activeZoom    : 1.8,
  54.       caseSensitive : false,
  55.       rangeHeight   : '20;40', // min;max as set by ion.rangeSlider
  56.       insertAsImage : false,
  57.       // emoji json sources
  58.       sources : [
  59.         'https://raw.githubusercontent.com/StylishThemes/GitHub-Custom-Emojis/master/collections/emoji-custom.json',
  60.         'https://raw.githubusercontent.com/StylishThemes/GitHub-Custom-Emojis/master/collections/emoji-crazy-rabbit.json',
  61.         'https://raw.githubusercontent.com/StylishThemes/GitHub-Custom-Emojis/master/collections/emoji-onion-head.json'
  62.       ]
  63.     },
  64.  
  65.     // emoji json stored here
  66.     collections : {},
  67.  
  68.     // GitHub ajax containers
  69.     containers : [
  70.       '#js-pjax-container',
  71.       '#js-repo-pjax-container',
  72.       '.js-contribution-activity',
  73.       '.more-repos'
  74.     ],
  75.  
  76.     // mutant observers to disconnect after ajax load
  77.     previewObserver : [],
  78.     // promises used when loading JSON
  79.     promises : {},
  80.  
  81.     getStoredValues : function() {
  82.       var defaults = this.defaults;
  83.       this.settings = {
  84.         rangeHeight   : GM_getValue('rangeHeight',   defaults.rangeHeight),
  85.         activeZoom    : GM_getValue('activeZoom',    defaults.activeZoom),
  86.         caseSensitive : GM_getValue('caseSensitive', defaults.caseSensitive),
  87.         insertAsImage : GM_getValue('insertAsImage', defaults.insertAsImage),
  88.         sources       : GM_getValue('sources',       defaults.sources),
  89.  
  90.         date          : GM_getValue('date', 0)
  91.       };
  92.  
  93.       this.collections = GM_getValue('collections', {});
  94.  
  95.       debug('Retrieved stored values', this.settings);
  96.     },
  97.  
  98.     storeVal : function(key, set, $el) {
  99.       var tmp,
  100.         val = set[key];
  101.       GM_setValue(key, val);
  102.       if (typeof val === 'boolean') {
  103.         $el.prop('checked', val);
  104.       } else {
  105.         $el.val(val);
  106.       }
  107.       // update sliders
  108.       if ($el.hasClass('ghe-height')) {
  109.         tmp = val.split(';');
  110.         $el.data('ionRangeSlider').update({
  111.           from: tmp[0],
  112.           to: tmp[1]
  113.         });
  114.       } else if ($el.hasClass('ghe-zoom')) {
  115.         $el.data('ionRangeSlider').update({
  116.           from: val
  117.         });
  118.       }
  119.     },
  120.  
  121.     setStoredValues : function(reset) {
  122.       var $el, tmp, len, indx,
  123.         s = ghe.settings,
  124.         d = ghe.defaults,
  125.         $panel = $('#ghe-settings-inner');
  126.  
  127.       ghe.busy = true;
  128.       ghe.storeVal('caseSensitive', reset ? d : s, $panel.find('.ghe-case'));
  129.       ghe.storeVal('insertAsImage', reset ? d : s, $panel.find('.ghe-image'));
  130.       ghe.storeVal('activeZoom',    reset ? d : s, $panel.find('.ghe-zoom'));
  131.       ghe.storeVal('rangeHeight',   reset ? d : s, $panel.find('.ghe-height'));
  132.  
  133.       GM_setValue('collections', this.collections);
  134.       GM_setValue('date', s.date);
  135.  
  136.       if (reset) {
  137.         // add defaults back into source list; but don't remove any new stuff
  138.         len = d.sources.length;
  139.         for (indx = 0; indx < len; indx++) {
  140.           if (s.sources.indexOf(d.sources[indx]) < 0) {
  141.             s.sources[s.sources.length] = d.sources[indx];
  142.           }
  143.         }
  144.       }
  145.       tmp = s.sources;
  146.       len = tmp.length;
  147.       GM_setValue('sources', tmp);
  148.       for (indx = 0; indx < len; indx++) {
  149.         if ($panel.find('.ghe-source').eq(indx).length) {
  150.           $el = $panel
  151.             .find('.ghe-source-input')
  152.             .eq(indx)
  153.             .attr('data-url', tmp[indx]);
  154.         } else {
  155.           $el = $(ghe.sourceHTML)
  156.             .appendTo($panel.find('.ghe-sources'))
  157.             .find('.ghe-source-input')
  158.             .attr('data-url', tmp[indx]);
  159.         }
  160.         // only show file name when not focused
  161.         ghe.showFileName($el);
  162.       }
  163.       // remove extras
  164.       $panel.find('.ghe-source').filter(':gt(' + len + ')').remove();
  165.       if (reset) {
  166.         this.updateSettings();
  167.       }
  168.  
  169.       debug((reset ? 'Resetting' : 'Saving') + ' current values & updating panel', s);
  170.       ghe.busy = false;
  171.     },
  172.  
  173.     updateSettings : function() {
  174.       this.isUpdating = true;
  175.       var settings = this.settings,
  176.         $panel = $('#ghe-settings-inner');
  177.       settings.rangeHeight   = $panel.find('.ghe-height').val();
  178.       settings.activeZoom    = $panel.find('.ghe-zoom').val();
  179.       settings.insertAsImage = $panel.find('.ghe-image').is(':checked');
  180.       settings.caseSensitive = $panel.find('.ghe-case').is(':checked');
  181.       settings.sources = $panel.find('.ghe-source-input').map(function(){
  182.         return $(this).attr('data-url');
  183.       }).get();
  184.  
  185.       // update case-sensitive regex
  186.       this.setRegex();
  187.  
  188.       debug('Updating user settings', settings);
  189.       this.updateStyleSheet();
  190.       this.isUpdating = false;
  191.     },
  192.  
  193.     loadEmojiJson : function(update) {
  194.       // only load emoji.json once a day, or after a forced update
  195.       if (update || (new Date().getTime() > this.settings.date + this.vars.delay)) {
  196.         var indx,
  197.           promises = [],
  198.           sources = this.settings.sources,
  199.           len = sources.length;
  200.         for (indx = 0; indx < len; indx++) {
  201.           promises[promises.length] = this.fetchCustomEmojis(sources[indx]);
  202.         }
  203.         $.when.apply(null, promises).done(function(){
  204.           ghe.checkPage();
  205.           ghe.promises = [];
  206.           ghe.settings.date = new Date().getTime();
  207.           GM_setValue('date', ghe.settings.date);
  208.           GM_setValue('collections', ghe.collections);
  209.         });
  210.       }
  211.     },
  212.  
  213.     fetchCustomEmojis : function(url) {
  214.       if (!this.promises[url]) {
  215.         this.promises[url] = $.Deferred(function(defer) {
  216.           debug('Fetching custom emoji list', url);
  217.           GM_xmlhttpRequest({
  218.             method : 'GET',
  219.             url : url,
  220.             onload : function(response) {
  221.               var json = false;
  222.               try {
  223.                 json = JSON.parse(response.responseText);
  224.               } catch (err) {
  225.                 debug('Invalid JSON', url);
  226.                 return defer.reject();
  227.               }
  228.               if (json && json[0].name) {
  229.                 // save url to make removing the entry easier
  230.                 json[0].url = url;
  231.                 ghe.collections[json[0].name] = json;
  232.                 debug('Adding "' + json[0].name + '" Emoji Collection');
  233.               }
  234.               return defer.resolve();
  235.             }
  236.           });
  237.         }).promise();
  238.       }
  239.       return this.promises[url];
  240.     },
  241.  
  242.     // Using: document.evaluate('//*[text()[contains(.,":_")]]', document.body, null,
  243.     //   XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null).snapshotItem(0);
  244.     // to find matching content as it is much faster than scanning each node
  245.     // sometimes it misses things...
  246.     checkPage : function(node) {
  247.       this.isUpdating = true;
  248.       // not sure why but document evaluate doesn't work on wiki page
  249.       // preview tab, so we need to search the entire document
  250.       if ($('#wiki-wrapper').length) {
  251.         node = null;
  252.       }
  253.       var indx = 0,
  254.         parts = this.vars.emojiTemplate.split('${name}'), // parts = [':_', ':']
  255.         // adding "//" starts from document, so if node is defined, don't
  256.         // include it so the search starts from the node
  257.         path = (node ? '' : '//') + '//*[text()[contains(.,"' + parts[0] + '")]]',
  258.         nodes = document.evaluate(path, node || document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null),
  259.         len = nodes.snapshotLength;
  260.       try {
  261.         node = nodes.snapshotItem(indx);
  262.         while (node && indx++ < len) {
  263.           if (!ghe.regex.skipElm.test(node.nodeName)) {
  264.             ghe.findEmoji(node);
  265.           }
  266.           node = nodes.snapshotItem(indx);
  267.         }
  268.       } catch (e) {
  269.         debug('Nothing to replace!', e);
  270.       }
  271.       this.isUpdating = false;
  272.     },
  273.  
  274.     findEmoji : function(node) {
  275.       var indx, len, group, match, matchesLen, name,
  276.         regex = ghe.regex.nameRegex,
  277.         matches = [],
  278.         emojis = this.collections,
  279.         str = node.textContent;
  280.       while ((match = regex.exec(str)) !== null) {
  281.         matches[matches.length] = match[1];
  282.       }
  283.       if (matches && matches[0]) {
  284.         matchesLen = matches.length;
  285.         for (group in emojis) {
  286.           if (emojis.hasOwnProperty(group)) {
  287.             len = emojis[group].length;
  288.             for (indx = 1; indx < len; indx++) {
  289.               name = emojis[group][indx].name;
  290.               for (match = 0; match < matchesLen; match++) {
  291.                 if (name === matches[match]) {
  292.                   debug('found "' + matches[match] + '" in "' + node.textContent + '"');
  293.                   ghe.replaceText(node, emojis[group][indx]);
  294.                 }
  295.               }
  296.             }
  297.           }
  298.         }
  299.       }
  300.     },
  301.  
  302.     replaceText : function(node, emoji) {
  303.       var data, pos, imgnode, middlebit, endbit,
  304.         isCased = this.settings.caseSensitive,
  305.         name = this.vars.emojiTemplate.replace(ghe.regex.template, emoji.name),
  306.         skip = 0;
  307.       name = isCased ? name : name.toUpperCase();
  308.       // Code modified from highlight-5 (MIT license)
  309.       // http://johannburkard.de/blog/programming/javascript/highlight-javascript-text-higlighting-jquery-plugin.html
  310.       if (node.nodeType === 3) {
  311.         data = isCased ? node.data : node.data.toUpperCase();
  312.         pos = data.indexOf(name);
  313.         pos -= (data.substr(0, pos).length - node.data.substr(0, pos).length);
  314.         if (pos >= 0) {
  315.           imgnode = ghe.createEmoji(emoji);
  316.           middlebit = node.splitText(pos);
  317.           endbit = middlebit.splitText(name.length);
  318.           middlebit.parentNode.replaceChild(imgnode, middlebit);
  319.           skip = 1;
  320.         }
  321.       } else if (node.nodeType === 1 && node.childNodes) {
  322.         for (var i = 0; i < node.childNodes.length; ++i) {
  323.           i += ghe.replaceText(node.childNodes[i], emoji);
  324.         }
  325.       }
  326.       return skip;
  327.     },
  328.  
  329.     // This function does the surrounding for every matched piece of text
  330.     // and can be customized  to do what you like
  331.     // <img class="emoji" title=":smile:" alt=":smile:" src="x.png" height="20" width="20" align="absmiddle">
  332.     createEmoji : function(emoji) {
  333.       var el = document.createElement('img');
  334.       el.src = emoji.url;
  335.       el.className = ghe.vars.emojiClass + ' emoji';
  336.       el.title = el.alt = ghe.vars.emojiTemplate.replace(ghe.regex.template, emoji.name);
  337.       // el.align = 'absmiddle'; // deprecated attribute
  338.       return el;
  339.     },
  340.  
  341.     // used by autocomplete (atwho) filter function
  342.     matches : function(query, labels) {
  343.       if (query === '') {
  344.         return 1;
  345.       }
  346.       labels = labels || '';
  347.       var i, partial,
  348.         count = 0,
  349.         isCS = this.settings.caseSensitive,
  350.         arry = (isCS ? labels : labels.toUpperCase()).split(/[\s,_]+/),
  351.         parts = (isCS ? query : query.toUpperCase()).split(/[,_]/),
  352.         len = parts.length;
  353.       for (i = 0; i < len; i++) {
  354.         // full match or partial
  355.         partial = arry.join('_').indexOf(parts.join('_'));
  356.         if (arry.indexOf(parts[i]) > -1 || partial > -1) {
  357.           count++;
  358.         }
  359.         // give more weight to results with indexOf closer to zero
  360.         if (partial > -1 && partial < len / 2) {
  361.           count++;
  362.         }
  363.       }
  364.       // return fraction of query matches
  365.       return count / len;
  366.     },
  367.  
  368.     // init when comment textarea is focused
  369.     initAutocomplete : function($el) {
  370.       if (!$el.data('atwho')) {
  371.         var indx, len, name, group,
  372.           data = [];
  373.         // combine data
  374.         for (name in ghe.collections) {
  375.           if (ghe.collections.hasOwnProperty(name)) {
  376.             group = ghe.collections[name].slice(1);
  377.             data = data.concat(group);
  378.           }
  379.         }
  380.         len = data.length;
  381.         // alphabetic sort
  382.         data = data.sort(function(a, b) {
  383.           return a.name > b.name ? 1 : a.name < b.name ? -1 : 0;
  384.         });
  385.         // add prepend name to labels
  386.         for (indx = 0; indx < len; indx++) {
  387.           data[indx].labels = data[indx].name.replace(/_/g, ' ') + ' ' + data[indx].labels;
  388.         }
  389.         // add emoji autocomplete to comment textareas
  390.         $el.atwho({
  391.           at : ':_', // first two characters from emojiTemplate
  392.           data : data,
  393.           searchKey: 'labels',
  394.           displayTpl : '<li><span><img src="${url}" height="30" /></span>${name}</li>',
  395.           insertTpl : ghe.vars.emojiTemplate,
  396.           delay : 400,
  397.           callbacks : {
  398.             matcher: function(flag, subtext) {
  399.               var regexp = ghe.regex.emojiFilter,
  400.                 match = regexp.exec(subtext);
  401.               // this next line does some magic...
  402.               // for some reason, without it, moving the caret from "p" to "r" in
  403.               // ":_people,fear," opens & closes the popup with each letter typed
  404.               subtext.match(regexp);
  405.               if (match) {
  406.                 return match[2] || match[1];
  407.               } else {
  408.                 return null;
  409.               }
  410.             },
  411.             filter: function(query, data, searchKey) {
  412.               var i, item,
  413.                 len = data.length,
  414.                 _results = [];
  415.               for (i = 0; i < len; i++) {
  416.                 item = data[i];
  417.                 item.atwho_order = ghe.matches(query, item[searchKey]);
  418.                 if (item.atwho_order > 0.9) {
  419.                   _results[_results.length] = item;
  420.                 }
  421.               }
  422.               return query === '' ? _results : _results.sort(function(a, b) {
  423.                 // descending sort
  424.                 return b.atwho_order - a.atwho_order;
  425.               });
  426.             },
  427.             sorter: function(query, items) {
  428.               // sorted by filter
  429.               return items;
  430.             },
  431.             // event parameter adding in atwho.js mod
  432.             beforeInsert: function(value, $li, event) {
  433.               if (event.shiftKey || ghe.settings.insertAsImage) {
  434.                 // add image tag directly if shift is held
  435.                 return '<img title="' +
  436.                   ghe.vars.emojiTemplate.replace(ghe.regex.template, $li.text()) +
  437.                   '" src="' + $li.find('img').attr('src') + '">';
  438.               }
  439.               return value;
  440.             }
  441.           }
  442.         });
  443.         // use classes from GitHub-Dark to make theme match GitHub-Dark
  444.         $('.atwho-view').addClass('popover suggester');
  445.       }
  446.     },
  447.  
  448.     setupPreviews : function() {
  449.       // Add mutant observer to previews
  450.       var previews = document.querySelectorAll('.preview-content .comment-body');
  451.       if (ghe.previewObserver.length) {
  452.         // disconnect previous observers
  453.         $.each(ghe.previewObserver, function() {
  454.           this.disconnect();
  455.         });
  456.         ghe.previewObserver = [];
  457.       }
  458.       Array.prototype.forEach.call(previews, function(target) {
  459.         var obs = new MutationObserver(function(mutations) {
  460.           mutations.forEach(function(mutation) {
  461.             // preform checks before adding code wrap to minimize function calls
  462.             if (mutation.target === target && !ghe.isUpdating) {
  463.               ghe.checkPage(target);
  464.             }
  465.           });
  466.         });
  467.         obs.observe(target, {
  468.           childList : true,
  469.           subtree : false
  470.         });
  471.         ghe.previewObserver[ghe.previewObserver.length] = obs;
  472.       });
  473.     },
  474.  
  475.     addToolbarIcon : function() {
  476.       // add Emoji setting icons
  477.       var indx, $el,
  478.         $toolbars = $('.toolbar-commenting'),
  479.         len = $toolbars.length;
  480.       for (indx = 0; indx < len; indx++) {
  481.         $el = $toolbars.eq(indx);
  482.         if (!$el.find('.ghe-settings-icon').length) {
  483.           $el.prepend([
  484.             '<button type="button" class="ghe-settings-open toolbar-item tooltipped tooltipped-n tooltipped-multiline" aria-label="Browse collections & Set Emojis Options" tabindex="-1">',
  485.               '<svg class="ghe-settings-icon" xmlns="http://www.w3.org/2000/svg" width="18" height="18" viewBox="0 0 18 18" fill="none" stroke="currentColor">',
  486.                 '<path d="M7.205 3.233c0 .952-.753 1.73-1.722 1.73-.953 0-1.707-.793-1.707-1.73 0-.937.762-1.73 1.707-1.73.97 0 1.73.793 1.73 1.73h-.008zm6.904 0c0 .952-.794 1.73-1.747 1.73-.95 0-1.722-.793-1.722-1.73 0-.937.795-1.73 1.73-1.73.938 0 1.747.793 1.747 1.73h-.008zM7.204 10.1v5.19c0 1.728 6.904 1.728 6.904 0V10.1M10.642 10.1v3.46"/>',
  487.                 '<path d="M.878 8.777s3.167 1.893 8.002 1.92c4.365.02 8.135-1.92 8.135-1.92"/>',
  488.               '</svg>',
  489.             '</button>'
  490.           ].join(''));
  491.         }
  492.       }
  493.     },
  494.  
  495.     // dynamic stylesheet
  496.     updateStyleSheet : function() {
  497.       var range = this.settings.rangeHeight.split(';');
  498.       ghe.$style.text([
  499.         // img styling - vertically center with set height range
  500.         '.atwho-view li img, #ghe-popup .select-menu-item img, img[alt="ghe-emoji"], .' +
  501.           this.vars.emojiClass + ' { ' +
  502.           'margin-bottom:.25em; vertical-align:middle; ' +
  503.           'min-height: ' + (range[0] || 'none') + 'px;' +
  504.           'max-height: ' + (range[1] || 'none') + 'px }',
  505.         // click (make active) on image to zoom
  506.         '.' + this.vars.emojiClass + ':active, a:active img[alt="ghe-emoji"] { zoom:' +
  507.           this.settings.activeZoom + ' }'
  508.       ].join(''));
  509.     },
  510.  
  511.     addBindings : function() {
  512.       var lastKey,
  513.         $popup = $('#ghe-popup'),
  514.         $settings = $('#ghe-settings');
  515.       // Delegated bindings
  516.       $('body')
  517.         .on('click', '.ghe-settings-open', function() {
  518.           // open all collections panel
  519.           ghe.openCollections($(this));
  520.           return false;
  521.         })
  522.         .on('click', '.ghe-collection', function() {
  523.           // open targeted collection
  524.           var name = $(this).attr('data-group');
  525.           ghe.showCollection(name);
  526.         })
  527.         .on('click', '.ghe-emoji', function(e) {
  528.           // click on emoji in collection to add to textarea
  529.           ghe.addEmoji(e, $(this));
  530.         })
  531.         .on('click keypress keydown', function(e) {
  532.           clearTimeout(ghe.timer);
  533.           var panelVisible = $popup.hasClass('in') || $settings.hasClass('in'),
  534.             openPanel = ghe.vars.keyboardOpen.split('+'),
  535.             key = String.fromCharCode(e.which).toLowerCase();
  536.           // press escape or click outside to close the panel
  537.           if (panelVisible && e.which === 27 || e.type === 'click' && !$(e.target).closest('#ghe-wrapper').length) {
  538.             ghe.closePanels();
  539.             return;
  540.           }
  541.           // keydown is only needed for escape key detection
  542.           if (e.type === 'keydown' || /(input|textarea)/i.test(document.activeElement.nodeName)) {
  543.             return;
  544.           }
  545.           // shortcut keys need keypress
  546.           if (lastKey === openPanel[0] && key === openPanel[1]) {
  547.             if ($settings.hasClass('in')) {
  548.               ghe.closePanels();
  549.             } else {
  550.               ghe.openSettings();
  551.             }
  552.           }
  553.           lastKey = key;
  554.           ghe.timer = setTimeout(function() {
  555.             lastKey = null;
  556.           }, ghe.vars.keyboardDelay);
  557.  
  558.           // add shortcut to help menu
  559.           if (key === '?') {
  560.             // table doesn't exist until user presses "?"
  561.             setTimeout(function() {
  562.               if (!$('.ghe-shortcut').length) {
  563.                 $('.keyboard-mappings:eq(0) tbody:eq(0)').append([
  564.                   '<tr class="ghe-shortcut">',
  565.                     '<td class="keys">',
  566.                       '<kbd>' + openPanel[0] + '</kbd> <kbd>' + openPanel[1] + '</kbd>',
  567.                     '</td>',
  568.                     '<td>GitHub Emojis: open settings</td>',
  569.                   '</tr>'
  570.                 ].join(''));
  571.               }
  572.             }, 300);
  573.           }
  574.         });
  575.  
  576.       // popup & settings interactions
  577.       $('#ghe-popup .octicon-gear').on('click keyup', function(e) {
  578.         if (e.type === 'keyup' && e.which !== 13) {
  579.           return;
  580.         }
  581.         ghe.openSettings();
  582.       });
  583.       $('#ghe-settings, #ghe-settings-close, #ghe-settings-inner').on('click', function(e) {
  584.         if (this.id === 'ghe-settings-inner') {
  585.           e.stopPropagation();
  586.         } else {
  587.           ghe.closePanels();
  588.         }
  589.       });
  590.       // ghe-checkbox added to checkboxes
  591.       $('.ghe-checkbox').on('change', function() {
  592.         ghe.updateSettings();
  593.       });
  594.       // go back - switch from single collection to showing all collections
  595.       $('#ghe-popup .ghe-back').on('click', function(){
  596.         $('.ghe-single-collection, .ghe-back').hide();
  597.         $('.ghe-all-collections').show();
  598.       });
  599.  
  600.       // add new source input
  601.       $('#ghe-add-source').on('click', function() {
  602.         var $panel = $('#ghe-settings-inner');
  603.         // lets not get crazy!
  604.         if ($panel.find('.ghe-source').length < 20) {
  605.           $(ghe.sourceHTML).appendTo($panel.find('.ghe-sources'));
  606.         }
  607.         return false;
  608.       });
  609.       $('#ghe-refresh-sources, #ghe-restore').on('click', function() {
  610.         // update sources from settings panel
  611.         ghe.setStoredValues(this.id === 'ghe-restore');
  612.         // load json files
  613.         ghe.loadEmojiJson(true);
  614.         return false;
  615.       });
  616.  
  617.       // Init range slider
  618.       $('.ghe-height')
  619.         .val(ghe.settings.rangeHeight)
  620.         .ionRangeSlider({
  621.           type : 'double',
  622.           min  : 0,
  623.           max  : ghe.vars.maxEmojiHeight,
  624.           onChange : function() {
  625.             ghe.updateSettings();
  626.           },
  627.           force_edges : true,
  628.           hide_min_max : true
  629.         });
  630.       $('.ghe-zoom')
  631.         .val(ghe.settings.activeZoom)
  632.         .ionRangeSlider({
  633.           min  : 0,
  634.           max  : ghe.vars.maxEmojiZoom,
  635.           step : 0.1,
  636.           onChange : function() {
  637.             ghe.updateSettings();
  638.           },
  639.           force_edges : true,
  640.           hide_min_max : true
  641.         });
  642.  
  643.       // Remove source input - delegated binding
  644.       $('.ghe-settings-wrapper')
  645.         .on('click', '.ghe-remove', function(e) {
  646.           var $wrapper = $(this).closest('.ghe-source'),
  647.             url = $wrapper.find('.ghe-source-input').attr('data-url');
  648.           ghe.removeSource(url);
  649.           $wrapper.remove();
  650.           ghe.setStoredValues();
  651.           return false;
  652.         })
  653.         .on('focus blur input change', '.ghe-source-input', function(e) {
  654.           if (ghe.busy) { return; }
  655.           ghe.busy = true;
  656.           var val,
  657.             $this = $(this);
  658.           switch (e.type) {
  659.             case 'focus':
  660.             case 'focusin':
  661.               // show entire url when focused
  662.               $this.val( $this.attr('data-url') );
  663.               break;
  664.             case 'blur':
  665.             case 'focusout':
  666.               ghe.showFileName($this);
  667.               break;
  668.             default:
  669.               $this.attr('data-url', $this.val());
  670.           }
  671.           if (e.type === 'change' || e.which === 13) {
  672.             val = $this.val();
  673.             $this.attr('data-url', val);
  674.             ghe.fetchCustomEmojis(val);
  675.           }
  676.           ghe.busy = false;
  677.         });
  678.  
  679.       // initialize autocomplete that add emojis, but only on focus
  680.       // since every comment has a hidden textarea
  681.       $('body').on('focus', '.comment-form-textarea', function() {
  682.         ghe.initAutocomplete($(this));
  683.       });
  684.     },
  685.  
  686.     showFileName : function($el) {
  687.       var str = $el.attr('data-url'),
  688.         v = str.substring( str.lastIndexOf('/') + 1, str.length );
  689.       // show only the file name in the input when blurred
  690.       // unless there is no file name
  691.       $el.val(v === '' ? str : '...' + v);
  692.     },
  693.  
  694.     closePanels : function() {
  695.       $('#ghe-popup').removeClass('in');
  696.       $('#ghe-settings').removeClass('in');
  697.       ghe.$currentInput = null;
  698.     },
  699.  
  700.     openSettings : function() {
  701.       $('.modal-backdrop').click();
  702.       $('#ghe-settings').addClass('in');
  703.     },
  704.  
  705.     openCollections : function($el) {
  706.       ghe.addCollections();
  707.       var pos = $el.offset();
  708.       $('#ghe-settings').removeClass('in');
  709.       $('#ghe-popup')
  710.         .addClass('in')
  711.         .css({
  712.           left: pos.left + 25,
  713.           top: pos.top
  714.         });
  715.       ghe.$currentInput = $el.closest('.previewable-comment-form').find('.comment-form-textarea');
  716.     },
  717.  
  718.     addCollections : function() {
  719.       var indx, len, key, group, img,
  720.         collections = ghe.collections,
  721.         range = ghe.settings.rangeHeight.split(';'),
  722.         list = [],
  723.         items = [];
  724.       // build collections list -
  725.       for (key in collections) {
  726.         if (collections.hasOwnProperty(key)) {
  727.           list[list.length] = key;
  728.         }
  729.       }
  730.       list = list.sort(function(a, b) {
  731.         return a > b ? 1 : (a < b ? -1 : 0);
  732.       });
  733.       len = list.length;
  734.       // add random image from group
  735.       for (indx = 0; indx < len; indx++) {
  736.         group = collections[list[indx]];
  737.         // random image (skip first entry)
  738.         img = Math.round(Math.random() * (group.length - 2)) + 1;
  739.         items[items.length] = '<div class="select-menu-item js-navigation-item ghe-collection" ' +
  740.           'data-group="' + list[indx] + '">' +
  741.           // collection info stored in first entry
  742.           group[0].name + ' <span class="ghe-right"><img src="' +
  743.           group[img].url + '" title="' +
  744.            ghe.vars.emojiTemplate.replace(ghe.regex.template, group[img].name) + '" style="' +
  745.            'min-height:' + (range[0] || 'none') + 'px;' +
  746.            'max-height:' + (range[1] || 'none') + 'px;">' +
  747.            '</span></div>';
  748.       }
  749.       $('.ghe-single-collection, .ghe-back').hide();
  750.       $('.ghe-all-collections').html(items.join('')).show();
  751.     },
  752.  
  753.     showCollection : function(name) {
  754.       var indx,
  755.         range = ghe.settings.rangeHeight.split(';'),
  756.         group = ghe.collections[name].sort(function(a, b) {
  757.           return a.name > b.name ? 1 : ( a.name < b.name ? -1 : 0 );
  758.         }),
  759.         list = [],
  760.         len = group.length;
  761.       for (indx = 1; indx < len; indx++) {
  762.         list[indx - 1] = '<div class="select-menu-item js-navigation-item ghe-emoji" ' +
  763.           'data-name="' + group[indx].name + '">' +
  764.           group[indx].name + '<span class="ghe-right"><img src="' +
  765.           group[indx].url + '" style="min-height:' + (range[0] || 'none') + 'px;' +
  766.             'max-height:' + (range[1] || 'none') + 'px"></span></div>';
  767.       }
  768.       $('.ghe-all-collections').hide();
  769.       $('.ghe-single-collection').html(list.join('')).show();
  770.       $('.ghe-back').show();
  771.     },
  772.  
  773.     // add emoji from collection
  774.     addEmoji : function(e, $el) {
  775.       var val, emoji,
  776.         name = $el.attr('data-name'),
  777.         caretPos = ghe.$currentInput.caret('pos');
  778.       // insert into textarea
  779.       if (e.shiftKey || ghe.settings.insertAsImage) {
  780.         // add image tag directly if shift is held;
  781.         // GitHub does NOT allow class names so we are forced to use alt
  782.         emoji = '<img alt="ghe-emoji" title="' +
  783.           ghe.vars.emojiTemplate.replace(ghe.regex.template, name) +
  784.           '" src="' + $el.find('img').attr('src') + '">';
  785.       } else {
  786.         emoji = ghe.vars.emojiTemplate.replace(ghe.regex.template, name);
  787.       }
  788.       val = ghe.$currentInput.val();
  789.       ghe.$currentInput
  790.         .val(val.slice(0, caretPos) + emoji + ' ' + val.slice(caretPos))
  791.         .focus()
  792.         .caret('pos', caretPos + emoji.length + 1);
  793.       ghe.closePanels();
  794.     },
  795.  
  796.     removeSource : function(url) {
  797.       var indx,
  798.         list = [],
  799.         collections = this.collections,
  800.         sources = this.settings.sources,
  801.         len = sources.length;
  802.       // remove from source
  803.       for (indx = 0; indx < len; indx++) {
  804.         if (sources[indx] !== url) {
  805.           list[list.length] = sources[indx];
  806.         }
  807.       }
  808.       this.settings.sources = list;
  809.       for (indx in collections) {
  810.         if (collections.hasOwnProperty(indx) && collections[indx][0].url === url) {
  811.           delete collections[indx];
  812.           debug('Removing "' + indx + '" collection', collections);
  813.         }
  814.       }
  815.     },
  816.  
  817.     update : function(target) {
  818.       this.isUpdating = true;
  819.       this.setupPreviews();
  820.       this.addToolbarIcon();
  821.       // checkPage clears isUpdating flag
  822.       this.checkPage(target);
  823.     },
  824.  
  825.     addPanels : function() {
  826.       /* https://github.com/ichord/At.js styles for autocomplete */
  827.       GM_addStyle([
  828.         // settings panel
  829.         '#ghe-menu:hover { cursor:pointer }',
  830.         '#ghe-settings { position:fixed; z-index:65535; top:0; bottom:0; left:0; right:0; opacity:0; visibility:hidden }',
  831.         '#ghe-settings.in { opacity:1; visibility:visible; background:rgba(0,0,0,.5) }',
  832.         '#ghe-settings-inner { position:fixed; left:50%; top:50%; transform:translate(-50%,-50%); width:25rem; box-shadow:0 .5rem 1rem #111; color:#c0c0c0 }',
  833.         '#ghe-settings label { margin-left:.5rem; position:relative; top:-1px }',
  834.         '#ghe-settings .ghe-remove { float:right; margin-top:2px; padding:4px; cursor:pointer }',
  835.         '#ghe-settings .ghe-remove-icon { position:relative; top:3px }',
  836.         '#ghe-settings-close { fill:#666; float:right; cursor:pointer }',
  837.         '#ghe-settings-close:hover { fill:#ccc }',
  838.         '#ghe-settings .ghe-settings-wrapper { max-height:60vh; overflow-y:auto; padding: 1px 10px }',
  839.         '#ghe-settings .ghe-right, #ghe-popup .ghe-right { float:right }',
  840.         '#ghe-settings p { line-height:25px; }',
  841.         '#ghe-settings .checkbox input { margin-top:.35em }',
  842.         '#ghe-settings input[type="checkbox"] { width:16px !important; height:16px !important; border-radius:3px !important }',
  843.         '#ghe-settings .boxed-group-inner { padding:0; }',
  844.         '#ghe-settings .ghe-footer { padding: 10px; border-top: #555 solid 1px; }',
  845.         '#ghe-settings .ghe-min-height, #ghe-settings .ghe-max-height, .ghe-zoom { width: 5em; }',
  846.         '#ghe-settings .ghe-source-input { width: 90%; }',
  847.         '#ghe-settings .ghe-slider-wrapper { height:40px; }',
  848.         '#ghe-settings .ghe-slider-wrapper label { position:relative; top:22px }',
  849.         '#ghe-settings .ghe-range-slider, #ghe-settings .ghe-zoom-slider { position:relative; height:40px; width:250px; float:right }',
  850.  
  851.         // show emoji collections
  852.         '#ghe-popup { display:none }',
  853.         '#ghe-popup .ghe-content, #ghe-popup .ghe-content > div { max-height: 200px }',
  854.         '#ghe-popup .octicon-gear { margin-left:4px }',
  855.         '#ghe-popup .ghe-back svg { height:20px; padding:4px 14px 4px 4px }',
  856.         '#ghe-popup .select-menu-item { font-size:1.1em; font-weight:bold; line-height:40px; padding:8px }',
  857.         '.ghe-settings-icon, #ghe-popup.in { display:inline-block }',
  858.  
  859.         // autocomplete popup in comment
  860.         '.atwho-view { position:absolute; top:0; left:0; display:none; margin-top:18px; background:#fff; color:#000; border:1px solid #ddd; border-radius:3px; box-shadow:0 0 5px rgba(0,0,0,.1); min-width:300px; max-width:none!important; max-height:225px; overflow:auto; z-index:11110!important }',
  861.         '.atwho-view .navigation-focus { background:#36f; color:#fff }',
  862.         '.atwho-view .navigation-focus small { color:#fff }',
  863.         '.atwho-view strong { color:#36F }',
  864.         '.atwho-view .navigation-focus strong { color:#fff; font:700 }',
  865.         '.atwho-view ul { list-style:none; padding:0; margin:auto }',
  866.         '.atwho-view ul li { display:block; padding:5px 10px; border-bottom:1px solid #ddd; cursor:pointer }',
  867.         '.atwho-view li span { display:inline-block; min-width:60px; padding-right:4px }',
  868.         '.atwho-view small { font-size:smaller; color:#777; font-weight:400 }',
  869.  
  870.         // rangeSlider
  871.         '.irs{position:relative;display:block;-webkit-touch-callout:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}',
  872.         '.irs-line{position:relative;display:block;overflow:hidden;outline:none !important}.irs-line-left,.irs-line-mid,.irs-line-right{position:absolute;display:block;top:0}',
  873.         '.irs-line-left{left:0;width:9%}.irs-line-mid{left:9%;width:82%}.irs-line-right{right:0;width:9%}.irs-bar{position:absolute;display:block;left:0;width:0}.irs-bar-edge{position:absolute;display:block;top:0;left:0}',
  874.         '.irs-shadow{position:absolute;display:none;left:0;width:0}.irs-slider{position:absolute;display:block;cursor:default;z-index:1}.irs-slider.type_last{z-index:2}.irs-min{position:absolute;display:block;left:0;cursor:default}',
  875.         '.irs-max{position:absolute;display:block;right:0;cursor:default}.irs-from,.irs-to,.irs-single{position:absolute;display:block;top:0;left:0;cursor:default;white-space:nowrap}.irs-grid{position:absolute;display:none;bottom:0;left:0;width:100%;height:20px}',
  876.         '.irs-with-grid .irs-grid{display:block}.irs-grid-pol{position:absolute;top:0;left:0;width:1px;height:8px;background:#000}.irs-grid-pol.small{height:4px}.irs-grid-text{position:absolute;bottom:0;left:0;white-space:nowrap;text-align:center;font-size:9px;line-height:9px;padding:0 3px;color:#000}',
  877.         '.irs-disable-mask{position:absolute;display:block;top:0;left:-1%;width:102%;height:100%;cursor:default;background:rgba(0,0,0,0.0);z-index:2}.lt-ie9 .irs-disable-mask{background:#000;filter:alpha(opacity=0);cursor:not-allowed}.irs-disabled{opacity:0.4}',
  878.         '.irs-hidden-input{position:absolute !important;display:block !important;top:0 !important;left:0 !important;width:0 !important;height:0 !important;font-size:0 !important;line-height:0 !important;padding:0 !important;margin:0 !important;outline:none !important;z-index:-9999 !important;background:none !important;border-style:solid !important;border-color:transparent !important}',
  879.         '.irs-line-mid,.irs-line-left,.irs-line-right,.irs-bar,.irs-bar-edge,.irs-slider{background:url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAQQAAAC0BAMAAACAm0/4AAAAHlBMVEUAAADh5OlIPakuJnU8MZzh5Onh5Onlt8BIPamDg6ND+SBkAAAACnRSTlMAgMzMzHlXE4oe0nCEQQAAAMJJREFUeNrt1qENAkEQhtENkBDkCtCECiiBFjCgEXgMDVwJVEzGQ7KnZnJ5r4JP7E7+1tNJkCBBgoSqCQAAjNg+e6rbq717snt79GSHdu3J9hVGfE8nIVR4jgU+ZYHTVOBAAwAw4pROggQJEiRUTQAAYMRuSl9Rn/whN+UnFJizEiQUSijwKQucpgIHGgCAQatjy7a5tJkkBAlBQpAQJAQJQUJYYkKByQIA/6zPbSYJQUKQECQECUFCkBAkhCUmAMAvX+TSxQIIIKq9AAAAAElFTkSuQmCC") repeat-x}',
  880.         '.irs{height:40px}.irs-with-grid{height:60px}.irs-line{height:12px;top:25px}.irs-line-left{height:12px;background-position:0 -30px}',
  881.         '.irs-line-mid{height:12px;background-position:0 0}.irs-line-right{height:12px;background-position:100% -30px}.irs-bar{height:12px;top:25px;background-position:0 -60px}',
  882.         '.irs-bar-edge{top:25px;height:12px;width:9px;background-position:0 -90px}.irs-shadow{height:3px;top:34px;background:#000;opacity:.25}',
  883.         '.lt-ie9 .irs-shadow{filter:alpha(opacity=25)}.irs-slider{width:16px;height:18px;top:22px;background-position:0 -120px}',
  884.         '.irs-slider.state_hover,.irs-slider:hover{background-position:0 -150px}.irs-min,.irs-max{color:#fff;font-size:10px;line-height:1.333;text-shadow:none;top:0;padding:1px 3px;background:#7D7E81;-moz-border-radius:4px;border-radius:4px}',
  885.         '.irs-from,.irs-to,.irs-single{color:#fff;font-size:10px;line-height:1.333;text-shadow:none;padding:1px 5px;background:#534AA1;-moz-border-radius:4px;border-radius:4px}',
  886.         '.irs-from:after,.irs-to:after,.irs-single:after{position:absolute;display:block;content:"";bottom:-6px;left:50%;width:0;height:0;margin-left:-3px;overflow:hidden;border:3px solid transparent;border-top-color:#534AA1}',
  887.         '.irs-grid-pol{background:#e1e4e9}.irs-grid-text{color:#999}'
  888.       ].join(''));
  889.  
  890.       // Settings panel markup
  891.       $('body').append([
  892.         '<div id="ghe-wrapper">',
  893.           '<div id="ghe-popup" class="select-menu-modal-holder js-menu-content js-navigation-container js-active-navigation-container">',
  894.             '<div class="select-menu-modal">',
  895.               '<div class="select-menu-header">',
  896.                 '<span class="select-menu-title">',
  897.                   '<text>Emoji Collections</text>',
  898.                   '<span class="octicon tooltipped tooltipped-w" aria-label="Change GitHub Custom Emoji Settings">',
  899.                     '<svg class="octicon-gear" viewBox="0 0 16 14" style="height: 16px; width: 14px;"><path d="M14 8.77V7.17l-1.94-0.64-0.45-1.09 0.88-1.84-1.13-1.13-1.81 0.91-1.09-0.45-0.69-1.92H6.17l-0.63 1.94-1.11 0.45-1.84-0.88-1.13 1.13 0.91 1.81-0.45 1.09L0 7.23v1.59l1.94 0.64 0.45 1.09-0.88 1.84 1.13 1.13 1.81-0.91 1.09 0.45 0.69 1.92h1.59l0.63-1.94 1.11-0.45 1.84 0.88 1.13-1.13-0.92-1.81 0.47-1.09 1.92-0.69zM7 11c-1.66 0-3-1.34-3-3s1.34-3 3-3 3 1.34 3 3-1.34 3-3 3z"/></svg>',
  900.                   '</span>',
  901.                   '<span class="octicon tooltipped tooltipped-w ghe-back" aria-label="Go back to see all collections">',
  902.                     '<svg xmlns="http://www.w3.org/2000/svg" width="6.5" height="10" viewBox="0 0 6.5 10"><path d="M5.008 0l1.497 1.504-3.76 3.49 3.743 3.51L4.984 10l-4.99-5.013L5.01 0z"/></svg>',
  903.                   '</span>',
  904.                 '</span>',
  905.               '</div>',
  906.               '<div class="js-select-menu-deferred-content ghe-content">',
  907.                 '<div class="select-menu-list ghe-all-collections"></div>',
  908.                 '<div class="select-menu-list ghe-single-collection"></div>',
  909.               '</div>',
  910.             '</div>',
  911.           '</div>',
  912.           '<div id="ghe-settings">',
  913.             '<div id="ghe-settings-inner" class="boxed-group">',
  914.               '<h3>GitHub Custom Emoji Settings',
  915.               '<svg id="ghe-settings-close" xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="160 160 608 608"><path d="M686.2 286.8L507.7 465.3l178.5 178.5-45 45-178.5-178.5-178.5 178.5-45-45 178.5-178.5-178.5-178.5 45-45 178.5 178.5 178.5-178.5z"/></svg>',
  916.               '</h3>',
  917.               '<div class="boxed-group-inner">',
  918.                 '<form>',
  919.                   '<div class="ghe-settings-wrapper">',
  920.                     '<p>',
  921.                       '<label>Insert as Image:',
  922.                         '<sup class="tooltipped tooltipped-e" aria-label="Or Shift + select the emoji">?</sup>',
  923.                         '<input class="ghe-image ghe-checkbox ghe-right" type="checkbox">',
  924.                       '</label>',
  925.                     '</p>',
  926.                     '<p class="checkbox">',
  927.                       '<label>Case Sensitive <input class="ghe-case ghe-checkbox ghe-right" type="checkbox"></label>',
  928.                     '</p>',
  929.                     '<div class="ghe-slider-wrapper">',
  930.                       '<div class="ghe-range-slider">',
  931.                         '<input type="text" class="ghe-height" value="" />',
  932.                       '</div>',
  933.                       '<label>Emoji Height',
  934.                         '<sup class="tooltipped tooltipped-e" aria-label="Set emoji minimum & maximum&#10;height in pixels">?</sup>',
  935.                       '</label>',
  936.                     '</div>',
  937.                     '<div class="ghe-slider-wrapper">',
  938.                       '<div class="ghe-zoom-slider">',
  939.                         '<input class="ghe-zoom ghe-right" type="text">',
  940.                       '</div>',
  941.                       '<label>Emoji Zoom',
  942.                         '<sup class="tooltipped tooltipped-e" aria-label="Set Emoji zoom factor&#10;while actively clicked">?</sup>',
  943.                       '</label>',
  944.                     '</div>',
  945.                     '<p>',
  946.                       '<hr>',
  947.                       '<h3>Sources',
  948.                         '<a href="https://github.com/StylishThemes/GitHub-Custom-Emojis/wiki/Add-Emojis" class="tooltipped tooltipped-e tooltipped-multiline" aria-label="Click to get more details on how to set up an Emoji source JSON file">',
  949.                           '<sup>?</sup>',
  950.                         '</a>',
  951.                       '</h3>',
  952.                       '<div class="ghe-sources"></div>',
  953.                     '</p>',
  954.                   '</div>',
  955.                   '<div class="ghe-footer">',
  956.                     '<div class="btn-group">',
  957.                       '<a href="#" id="ghe-add-source" class="btn btn-sm">Add Source</a>',
  958.                       '<a href="#" id="ghe-refresh-sources" class="btn btn-sm">Refresh Sources</a>&nbsp;',
  959.                     '</div>',
  960.                     '<a href="#" id="ghe-restore" class="btn btn-sm btn-danger tooltipped tooltipped-n ghe-right" aria-label="Default sources are restored;&#10;other source will remain">Restore Defaults</a>',
  961.                   '</div>',
  962.                 '</form>',
  963.               '</div>',
  964.             '</div>',
  965.           '</div>',
  966.         '</div>'
  967.       ].join(''));
  968.     },
  969.  
  970.     // JSON source inputs
  971.     sourceHTML : [
  972.       '<div class="ghe-source">',
  973.         '<input class="ghe-source-input" type="text" value="" placeholder="Add JSON sources only">',
  974.         '<a href="#" class="ghe-remove btn btn-sm btn-danger">',
  975.           '<svg class="ghe-remove-icon" xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="160 160 608 608" fill="currentColor"><path d="M686.2 286.8L507.7 465.3l178.5 178.5-45 45-178.5-178.5-178.5 178.5-45-45 178.5-178.5-178.5-178.5 45-45 178.5 178.5 178.5-178.5z"/></svg>',
  976.         '</a>',
  977.       '</div>'
  978.     ].join(''),
  979.  
  980.     setRegex : function() {
  981.       var isCS = this.settings.caseSensitive,
  982.         // parts = [':_', ':']
  983.         parts = this.vars.emojiTemplate.split('${name}');
  984.  
  985.       // emojiFilter = /:_([a-zA-Z\u00c0-\u00ff0-9_,'.+-]*)$|:_([^\x00-\xff]*)$/gi
  986.       // used by atwho.js autocomplete
  987.       this.regex.emojiFilter = new RegExp(
  988.         parts[0] + '([a-zA-Z\u00c0-\u00ff0-9_,\'\.\+\-]*)$|' +
  989.         parts[0] + '([^\\x00-\\xff]*)$',
  990.         (isCS ? 'g' : 'gi')
  991.       );
  992.  
  993.       this.regex.nameRegex = new RegExp(
  994.         parts[0] + '([\\w_]+)' + parts[1],
  995.         (isCS ? 'g' : 'gi')
  996.       );
  997.     },
  998.  
  999.     init : function() {
  1000.       debug('GitHub-Emoji Script initializing!');
  1001.  
  1002.       // add style tag to head
  1003.       this.$style = $('<style class="ghe-style">').appendTo('head');
  1004.  
  1005.       this.getStoredValues();
  1006.       this.loadEmojiJson();
  1007.       this.updateStyleSheet();
  1008.       this.isUpdating = true;
  1009.       // regex based on case sensitive setting
  1010.       this.setRegex();
  1011.  
  1012.       var targets = document.querySelectorAll(this.containers.join(','));
  1013.       Array.prototype.forEach.call(targets, function(target) {
  1014.         new MutationObserver(function(mutations) {
  1015.           mutations.forEach(function(mutation) {
  1016.             // preform checks before adding code wrap to minimize function calls
  1017.             if (mutation.target === target && !$.isEmptyObject(ghe.collections) &&
  1018.               !(ghe.isUpdating || target.querySelector('.ghe-processed'))) {
  1019.               ghe.update(target);
  1020.             }
  1021.           });
  1022.         }).observe(target, {
  1023.           childList : true,
  1024.           subtree : true
  1025.         });
  1026.       });
  1027.  
  1028.       this.addPanels();
  1029.  
  1030.       // Add emoji autocomplete & watch for preview rendering
  1031.       this.setupPreviews();
  1032.       this.addToolbarIcon();
  1033.       this.addBindings();
  1034.       // update panel values after bindings (rangeslider)
  1035.       this.setStoredValues();
  1036.  
  1037.       // checkPage clears isUpdating flag
  1038.       this.checkPage();
  1039.     }
  1040.   };
  1041.  
  1042.   // add style at document-start
  1043.   ghe.init();
  1044.  
  1045.   // include a "?debug" anywhere in the browser URL to enable debugging
  1046.   function debug() {
  1047.     if (/\?debug/.test(window.location.href)) {
  1048.       console.log.apply(console, arguments);
  1049.     }
  1050.   }
  1051. })(jQuery.noConflict(true));