move glEmojiTag method to emoji helper

app/assets/javascripts/awards_handler.js

@@ -2,7 +2,6 @@
 /* global Flash */
 
 import Cookies from 'js-cookie';
-import { glEmojiTag } from './behaviors/gl_emoji';
 import * as Emoji from './emoji';
 
 const animationEndEventString = 'animationend webkitAnimationEnd MSAnimationEnd oAnimationEnd';
@@ -30,7 +29,7 @@ function renderCategory(name, emojiList, opts = {}) {
       ${emojiList.map(emojiName => `
         <li class="emoji-menu-list-item">
           <button class="emoji-menu-btn text-center js-emoji-btn" type="button">
-            ${glEmojiTag(emojiName, {
+            ${Emoji.glEmojiTag(emojiName, {
               sprite: true,
             })}
           </button>
@@ -369,7 +368,7 @@ export default class AwardsHandler {
   createAwardButtonForVotesBlock(votesBlock, emojiName) {
     const buttonHtml = `
       <button class="btn award-control js-emoji-btn has-tooltip active" title="You" data-placement="bottom">
-        ${glEmojiTag(emojiName)}
+        ${Emoji.glEmojiTag(emojiName)}
         <span class="award-control-text js-counter">1</span>
       </button>
     `;

app/assets/javascripts/behaviors/gl_emoji.js

 import installCustomElements from 'document-register-element';
-import { emojiMap, normalizeEmojiName } from '../emoji';
+import { emojiImageTag, emojiFallbackImageSrc } from '../emoji';
 import isEmojiUnicodeSupported from '../emoji/support';
 
 installCustomElements(window);
 
-function emojiImageTag(name, src) {
-  return `<img class="emoji" title=":${name}:" alt=":${name}:" src="${src}" width="20" height="20" align="absmiddle" />`;
-}
-
-function assembleFallbackImageSrc(inputName) {
-  let name = normalizeEmojiName(inputName);
-  let emojiInfo = emojiMap[name];
-  // Fallback to question mark for unknown emojis
-  if (!emojiInfo) {
-    name = 'grey_question';
-    emojiInfo = emojiMap[name];
-  }
-  const fallbackImageSrc = `${gon.asset_host || ''}${gon.relative_url_root || ''}/assets/emoji/${name}-${emojiInfo.digest}.png`;
-
-  return fallbackImageSrc;
-}
-
-function glEmojiTag(inputName, options) {
-  const opts = { sprite: false, forceFallback: false, ...options };
-  let name = normalizeEmojiName(inputName);
-  let emojiInfo = emojiMap[name];
-  // Fallback to question mark for unknown emojis
-  if (!emojiInfo) {
-    name = 'grey_question';
-    emojiInfo = emojiMap[name];
-  }
-
-  const fallbackImageSrc = assembleFallbackImageSrc(name);
-  const fallbackSpriteClass = `emoji-${name}`;
-
-  const classList = [];
-  if (opts.forceFallback && opts.sprite) {
-    classList.push('emoji-icon');
-    classList.push(fallbackSpriteClass);
-  }
-  const classAttribute = classList.length > 0 ? `class="${classList.join(' ')}"` : '';
-  const fallbackSpriteAttribute = opts.sprite ? `data-fallback-sprite-class="${fallbackSpriteClass}"` : '';
-  let contents = emojiInfo.moji;
-  if (opts.forceFallback && !opts.sprite) {
-    contents = emojiImageTag(name, fallbackImageSrc);
-  }
-
-  return `
-  <gl-emoji
-    ${classAttribute}
-    data-name="${name}"
-    data-fallback-src="${fallbackImageSrc}"
-    ${fallbackSpriteAttribute}
-    data-unicode-version="${emojiInfo.unicodeVersion}"
-    title="${emojiInfo.description}"
-  >
-    ${contents}
-  </gl-emoji>
-  `;
-}
-
-function installGlEmojiElement() {
+export default function installGlEmojiElement() {
   const GlEmojiElementProto = Object.create(HTMLElement.prototype);
   GlEmojiElementProto.createdCallback = function createdCallback() {
     const emojiUnicode = this.textContent.trim();
@@ -91,7 +35,7 @@ function installGlEmojiElement() {
       } else if (hasImageFallback) {
         this.innerHTML = emojiImageTag(name, fallbackSrc);
       } else {
-        const src = assembleFallbackImageSrc(name);
+        const src = emojiFallbackImageSrc(name);
         this.innerHTML = emojiImageTag(name, src);
       }
     }
@@ -101,8 +45,3 @@ function installGlEmojiElement() {
     prototype: GlEmojiElementProto,
   });
 }
-
-export {
-  installGlEmojiElement,
-  glEmojiTag,
-};

app/assets/javascripts/behaviors/index.js

 import './autosize';
 import './bind_in_out';
 import './details_behavior';
-import { installGlEmojiElement } from './gl_emoji';
+import installGlEmojiElement from './gl_emoji';
 import './quick_submit';
 import './requires_input';
 import './toggler_behavior';

app/assets/javascripts/emoji/index.js

 import emojiMap from 'emojis/digests.json';
 import emojiAliases from 'emojis/aliases.json';
 
-const validEmojiNames = [...Object.keys(emojiMap), ...Object.keys(emojiAliases)];
+export const validEmojiNames = [...Object.keys(emojiMap), ...Object.keys(emojiAliases)];
 
-function normalizeEmojiName(name) {
+export function normalizeEmojiName(name) {
   return Object.prototype.hasOwnProperty.call(emojiAliases, name) ? emojiAliases[name] : name;
 }
 
-function isEmojiNameValid(name) {
+export function isEmojiNameValid(name) {
   return validEmojiNames.indexOf(name) >= 0;
 }
 
-function filterEmojiNames(filter) {
+export function filterEmojiNames(filter) {
   const match = filter.toLowerCase();
   return validEmojiNames.filter(name => name.indexOf(match) >= 0);
 }
 
-function filterEmojiNamesByAlias(filter) {
+export function filterEmojiNamesByAlias(filter) {
   return _.uniq(filterEmojiNames(filter).map(name => normalizeEmojiName(name)));
 }
 
 let emojiByCategory;
-function getEmojiByCategory(category = null) {
+export function getEmojiByCategory(category = null) {
   if (!emojiByCategory) {
     emojiByCategory = {
       activity: [],
@@ -43,13 +43,57 @@ function getEmojiByCategory(category = null) {
   return category ? emojiByCategory[category] : emojiByCategory;
 }
 
-export {
-  emojiMap,
-  emojiAliases,
-  normalizeEmojiName,
-  filterEmojiNames,
-  filterEmojiNamesByAlias,
-  getEmojiByCategory,
-  isEmojiNameValid,
-  validEmojiNames,
-};
+export function getEmojiInfo(query) {
+  let name = normalizeEmojiName(query);
+  let emojiInfo = emojiMap[name];
+
+  // Fallback to question mark for unknown emojis
+  if (!emojiInfo) {
+    name = 'grey_question';
+    emojiInfo = emojiMap[name];
+  }
+
+  return { ...emojiInfo, name };
+}
+
+export function emojiFallbackImageSrc(inputName) {
+  const { name, digest } = getEmojiInfo(inputName);
+  return `${gon.asset_host || ''}${gon.relative_url_root || ''}/assets/emoji/${name}-${digest}.png`;
+}
+
+export function emojiImageTag(name, src) {
+  return `<img class="emoji" title=":${name}:" alt=":${name}:" src="${src}" width="20" height="20" align="absmiddle" />`;
+}
+
+export function glEmojiTag(inputName, options) {
+  const opts = { sprite: false, forceFallback: false, ...options };
+  const { name, ...emojiInfo } = getEmojiInfo(inputName);
+
+  const fallbackImageSrc = emojiFallbackImageSrc(name);
+  const fallbackSpriteClass = `emoji-${name}`;
+
+  const classList = [];
+  if (opts.forceFallback && opts.sprite) {
+    classList.push('emoji-icon');
+    classList.push(fallbackSpriteClass);
+  }
+  const classAttribute = classList.length > 0 ? `class="${classList.join(' ')}"` : '';
+  const fallbackSpriteAttribute = opts.sprite ? `data-fallback-sprite-class="${fallbackSpriteClass}"` : '';
+  let contents = emojiInfo.moji;
+  if (opts.forceFallback && !opts.sprite) {
+    contents = emojiImageTag(name, fallbackImageSrc);
+  }
+
+  return `
+    <gl-emoji
+      ${classAttribute}
+      data-name="${name}"
+      data-fallback-src="${fallbackImageSrc}"
+      ${fallbackSpriteAttribute}
+      data-unicode-version="${emojiInfo.unicodeVersion}"
+      title="${emojiInfo.description}"
+    >
+      ${contents}
+    </gl-emoji>
+  `;
+}

app/assets/javascripts/gfm_auto_complete.js

-import { glEmojiTag } from './behaviors/gl_emoji';
-import { validEmojiNames } from './emoji';
+import { validEmojiNames, glEmojiTag } from './emoji';
 import glRegexp from './lib/utils/regexp';
 import AjaxCache from './lib/utils/ajax_cache';
 

spec/javascripts/gl_emoji_spec.js → spec/javascripts/emoji_spec.js

-import { glEmojiTag } from '~/behaviors/gl_emoji';
+import { glEmojiTag } from '~/emoji';
 import isEmojiUnicodeSupported, {
   isFlagEmoji,
   isKeycapEmoji,