Rename themes -> flavours ? ?

app/javascript/flavours/glitch/util/api.js

@@ -0,0 +1,26 @@
+import axios from 'axios';
+import LinkHeader from './link_header';
+
+export const getLinks = response => {
+  const value = response.headers.link;
+
+  if (!value) {
+    return { refs: [] };
+  }
+
+  return LinkHeader.parse(value);
+};
+
+export default getState => axios.create({
+  headers: {
+    'Authorization': `Bearer ${getState().getIn(['meta', 'access_token'], '')}`,
+  },
+
+  transformResponse: [function (data) {
+    try {
+      return JSON.parse(data);
+    } catch(Exception) {
+      return data;
+    }
+  }],
+});

app/javascript/flavours/glitch/util/async-components.js

@@ -0,0 +1,115 @@
+export function EmojiPicker () {
+  return import(/* webpackChunkName: "flavours/glitch/async/emoji_picker" */'flavours/glitch/util/emoji/emoji_picker');
+}
+
+export function Compose () {
+  return import(/* webpackChunkName: "flavours/glitch/async/compose" */'flavours/glitch/features/compose');
+}
+
+export function Notifications () {
+  return import(/* webpackChunkName: "flavours/glitch/async/notifications" */'flavours/glitch/features/notifications');
+}
+
+export function HomeTimeline () {
+  return import(/* webpackChunkName: "flavours/glitch/async/home_timeline" */'flavours/glitch/features/home_timeline');
+}
+
+export function PublicTimeline () {
+  return import(/* webpackChunkName: "flavours/glitch/async/public_timeline" */'flavours/glitch/features/public_timeline');
+}
+
+export function CommunityTimeline () {
+  return import(/* webpackChunkName: "flavours/glitch/async/community_timeline" */'flavours/glitch/features/community_timeline');
+}
+
+export function HashtagTimeline () {
+  return import(/* webpackChunkName: "flavours/glitch/async/hashtag_timeline" */'flavours/glitch/features/hashtag_timeline');
+}
+
+export function DirectTimeline() {
+  return import(/* webpackChunkName: "flavours/glitch/async/direct_timeline" */'flavours/glitch/features/direct_timeline');
+}
+
+export function Status () {
+  return import(/* webpackChunkName: "flavours/glitch/async/status" */'flavours/glitch/features/status');
+}
+
+export function GettingStarted () {
+  return import(/* webpackChunkName: "flavours/glitch/async/getting_started" */'flavours/glitch/features/getting_started');
+}
+
+export function PinnedStatuses () {
+  return import(/* webpackChunkName: "flavours/glitch/async/pinned_statuses" */'flavours/glitch/features/pinned_statuses');
+}
+
+export function AccountTimeline () {
+  return import(/* webpackChunkName: "flavours/glitch/async/account_timeline" */'flavours/glitch/features/account_timeline');
+}
+
+export function AccountGallery () {
+  return import(/* webpackChunkName: "flavours/glitch/async/account_gallery" */'flavours/glitch/features/account_gallery');
+}
+
+export function Followers () {
+  return import(/* webpackChunkName: "flavours/glitch/async/followers" */'flavours/glitch/features/followers');
+}
+
+export function Following () {
+  return import(/* webpackChunkName: "flavours/glitch/async/following" */'flavours/glitch/features/following');
+}
+
+export function Reblogs () {
+  return import(/* webpackChunkName: "flavours/glitch/async/reblogs" */'flavours/glitch/features/reblogs');
+}
+
+export function Favourites () {
+  return import(/* webpackChunkName: "flavours/glitch/async/favourites" */'flavours/glitch/features/favourites');
+}
+
+export function FollowRequests () {
+  return import(/* webpackChunkName: "flavours/glitch/async/follow_requests" */'flavours/glitch/features/follow_requests');
+}
+
+export function GenericNotFound () {
+  return import(/* webpackChunkName: "flavours/glitch/async/generic_not_found" */'flavours/glitch/features/generic_not_found');
+}
+
+export function FavouritedStatuses () {
+  return import(/* webpackChunkName: "flavours/glitch/async/favourited_statuses" */'flavours/glitch/features/favourited_statuses');
+}
+
+export function Blocks () {
+  return import(/* webpackChunkName: "flavours/glitch/async/blocks" */'flavours/glitch/features/blocks');
+}
+
+export function Mutes () {
+  return import(/* webpackChunkName: "flavours/glitch/async/mutes" */'flavours/glitch/features/mutes');
+}
+
+export function OnboardingModal () {
+  return import(/* webpackChunkName: "flavours/glitch/async/onboarding_modal" */'flavours/glitch/features/ui/components/onboarding_modal');
+}
+
+export function MuteModal () {
+  return import(/* webpackChunkName: "flavours/glitch/async/mute_modal" */'flavours/glitch/features/ui/components/mute_modal');
+}
+
+export function ReportModal () {
+  return import(/* webpackChunkName: "flavours/glitch/async/report_modal" */'flavours/glitch/features/ui/components/report_modal');
+}
+
+export function SettingsModal () {
+  return import(/* webpackChunkName: "flavours/glitch/async/settings_modal" */'flavours/glitch/features/local_settings');
+}
+
+export function MediaGallery () {
+  return import(/* webpackChunkName: "flavours/glitch/async/media_gallery" */'flavours/glitch/components/media_gallery');
+}
+
+export function Video () {
+  return import(/* webpackChunkName: "flavours/glitch/async/video" */'flavours/glitch/features/video');
+}
+
+export function EmbedModal () {
+  return import(/* webpackChunkName: "flavours/glitch/async/embed_modal" */'flavours/glitch/features/ui/components/embed_modal');
+}

app/javascript/flavours/glitch/util/base_polyfills.js

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+import 'intl';
+import 'intl/locale-data/jsonp/en';
+import 'es6-symbol/implement';
+import includes from 'array-includes';
+import assign from 'object-assign';
+import isNaN from 'is-nan';
+
+if (!Array.prototype.includes) {
+  includes.shim();
+}
+
+if (!Object.assign) {
+  Object.assign = assign;
+}
+
+if (!Number.isNaN) {
+  Number.isNaN = isNaN;
+}

app/javascript/flavours/glitch/util/bio_metadata.js

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+/*
+
+`util/bio_metadata`
+===================
+
+>   For more information on the contents of this file, please contact:
+>
+>   - kibigo! [@kibi@glitch.social]
+
+This file provides two functions for dealing with bio metadata. The
+functions are:
+
+ -  __`processBio(content)` :__
+    Processes `content` to extract any frontmatter. The returned
+    object has two properties: `text`, which contains the text of
+    `content` sans-frontmatter, and `metadata`, which is an array
+    of key-value pairs (in two-element array format). If no
+    frontmatter was provided in `content`, then `metadata` will be
+    an empty array.
+
+ -  __`createBio(note, data)` :__
+    Reverses the process in `processBio()`; takes a `note` and an
+    array of two-element arrays (which should give keys and values)
+    and outputs a string containing a well-formed bio with
+    frontmatter.
+
+*/
+
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+/*********************************************************************\
+
+                                       To my lovely code maintainers,
+
+  The syntax recognized by the Mastodon frontend for its bio metadata
+  feature is a subset of that provided by the YAML 1.2 specification.
+  In particular, Mastodon recognizes metadata which is provided as an
+  implicit YAML map, where each key-value pair takes up only a single
+  line (no multi-line values are permitted). To simplify the level of
+  processing required, Mastodon metadata frontmatter has been limited
+  to only allow those characters in the `c-printable` set, as defined
+  by the YAML 1.2 specification, instead of permitting those from the
+  `nb-json` characters inside double-quoted strings like YAML proper.
+    ¶ It is important to note that Mastodon only borrows the *syntax*
+  of YAML, not its semantics. This is to say, Mastodon won't make any
+  attempt to interpret the data it receives. `true` will not become a
+  boolean; `56` will not be interpreted as a number. Rather, each key
+  and every value will be read as a string, and as a string they will
+  remain. The order of the pairs is unchanged, and any duplicate keys
+  are preserved. However, YAML escape sequences will be replaced with
+  the proper interpretations according to the YAML 1.2 specification.
+    ¶ The implementation provided below interprets `<br>` as `\n` and
+  allows for an open <p> tag at the beginning of the bio. It replaces
+  the escaped character entities `&apos;` and `&quot;` with single or
+  double quotes, respectively, prior to processing. However, no other
+  escaped characters are replaced, not even those which might have an
+  impact on the syntax otherwise. These minor allowances are provided
+  because the Mastodon backend will insert these things automatically
+  into a bio before sending it through the API, so it is important we
+  account for them. Aside from this, the YAML frontmatter must be the
+  very first thing in the bio, leading with three consecutive hyphen-
+  minues (`---`), and ending with the same or, alternatively, instead
+  with three periods (`...`). No limits have been set with respect to
+  the number of characters permitted in the frontmatter, although one
+  should note that only limited space is provided for them in the UI.
+    ¶ The regular expression used to check the existence of, and then
+  process, the YAML frontmatter has been split into a number of small
+  components in the code below, in the vain hope that it will be much
+  easier to read and to maintain. I leave it to the future readers of
+  this code to determine the extent of my successes in this endeavor.
+
+  UPDATE 19 Oct 2017: We no longer allow character escapes inside our
+  double-quoted strings for ease of processing. We now internally use
+  the name "ƔAML" in our code to clarify that this is Not Quite YAML.
+
+                                       Sending love + warmth eternal,
+                                       - kibigo [@kibi@glitch.social]
+
+\*********************************************************************/
+
+/*  "u" FLAG COMPATABILITY  */
+
+let compat_mode = false;
+try {
+  new RegExp('.', 'u');
+} catch (e) {
+  compat_mode = true;
+}
+
+/*  CONVENIENCE FUNCTIONS  */
+
+const unirex = str => compat_mode ? new RegExp(str) : new RegExp(str, 'u');
+const rexstr = exp => '(?:' + exp.source + ')';
+
+/*  CHARACTER CLASSES  */
+
+const DOCUMENT_START    = /^/;
+const DOCUMENT_END      = /$/;
+const ALLOWED_CHAR      =  unirex( //  `c-printable` in the YAML 1.2 spec.
+    compat_mode ? '[\t\n\r\x20-\x7e\x85\xa0-\ufffd]' : '[\t\n\r\x20-\x7e\x85\xa0-\ud7ff\ue000-\ufffd\u{10000}-\u{10FFFF}]'
+  );
+const WHITE_SPACE       = /[ \t]/;
+const LINE_BREAK        = /\r?\n|\r|<br\s*\/?>/;
+const INDICATOR         = /[-?:,[\]{}&#*!|>'"%@`]/;
+const FLOW_CHAR         = /[,[\]{}]/;
+
+/*  NEGATED CHARACTER CLASSES  */
+
+const NOT_WHITE_SPACE   = unirex('(?!' + rexstr(WHITE_SPACE) + ')[^]');
+const NOT_LINE_BREAK    = unirex('(?!' + rexstr(LINE_BREAK) + ')[^]');
+const NOT_INDICATOR     = unirex('(?!' + rexstr(INDICATOR) + ')[^]');
+const NOT_FLOW_CHAR     = unirex('(?!' + rexstr(FLOW_CHAR) + ')[^]');
+const NOT_ALLOWED_CHAR  = unirex(
+  '(?!' + rexstr(ALLOWED_CHAR) + ')[^]'
+);
+
+/*  BASIC CONSTRUCTS  */
+
+const ANY_WHITE_SPACE   = unirex(rexstr(WHITE_SPACE) + '*');
+const ANY_ALLOWED_CHARS = unirex(rexstr(ALLOWED_CHAR) + '*');
+const NEW_LINE          = unirex(
+  rexstr(ANY_WHITE_SPACE) + rexstr(LINE_BREAK)
+);
+const SOME_NEW_LINES    = unirex(
+  '(?:' + rexstr(NEW_LINE) + ')+'
+);
+const POSSIBLE_STARTS   = unirex(
+  rexstr(DOCUMENT_START) + rexstr(/<p[^<>]*>/) + '?'
+);
+const POSSIBLE_ENDS     = unirex(
+  rexstr(SOME_NEW_LINES) + '|' +
+  rexstr(DOCUMENT_END) + '|' +
+  rexstr(/<\/p>/)
+);
+const QUOTE_CHAR         = unirex(
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')[^"]'
+);
+const ANY_QUOTE_CHAR    = unirex(
+  rexstr(QUOTE_CHAR) + '*'
+);
+
+const ESCAPED_APOS      = unirex(
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')' + rexstr(/[^']|''/)
+);
+const ANY_ESCAPED_APOS  = unirex(
+  rexstr(ESCAPED_APOS) + '*'
+);
+const FIRST_KEY_CHAR    = unirex(
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')' +
+  '(?=' + rexstr(NOT_WHITE_SPACE) + ')' +
+  rexstr(NOT_INDICATOR) + '|' +
+  rexstr(/[?:-]/) +
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')' +
+  '(?=' + rexstr(NOT_WHITE_SPACE) + ')' +
+  '(?=' + rexstr(NOT_FLOW_CHAR) + ')'
+);
+const FIRST_VALUE_CHAR  = unirex(
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')' +
+  '(?=' + rexstr(NOT_WHITE_SPACE) + ')' +
+  rexstr(NOT_INDICATOR) + '|' +
+  rexstr(/[?:-]/) +
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')' +
+  '(?=' + rexstr(NOT_WHITE_SPACE) + ')'
+  //  Flow indicators are allowed in values.
+);
+const LATER_KEY_CHAR    = unirex(
+  rexstr(WHITE_SPACE) + '|' +
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')' +
+  '(?=' + rexstr(NOT_WHITE_SPACE) + ')' +
+  '(?=' + rexstr(NOT_FLOW_CHAR) + ')' +
+  rexstr(/[^:#]#?/) + '|' +
+  rexstr(/:/) + '(?=' + rexstr(NOT_WHITE_SPACE) + ')'
+);
+const LATER_VALUE_CHAR  = unirex(
+  rexstr(WHITE_SPACE) + '|' +
+  '(?=' + rexstr(NOT_LINE_BREAK) + ')' +
+  '(?=' + rexstr(NOT_WHITE_SPACE) + ')' +
+  //  Flow indicators are allowed in values.
+  rexstr(/[^:#]#?/) + '|' +
+  rexstr(/:/) + '(?=' + rexstr(NOT_WHITE_SPACE) + ')'
+);
+
+/*  YAML CONSTRUCTS  */
+
+const ƔAML_START        = unirex(
+  rexstr(ANY_WHITE_SPACE) + '---'
+);
+const ƔAML_END          = unirex(
+  rexstr(ANY_WHITE_SPACE) + '(?:---|\.\.\.)'
+);
+const ƔAML_LOOKAHEAD    = unirex(
+  '(?=' +
+    rexstr(ƔAML_START) +
+    rexstr(ANY_ALLOWED_CHARS) + rexstr(NEW_LINE) +
+    rexstr(ƔAML_END) + rexstr(POSSIBLE_ENDS) +
+  ')'
+);
+const ƔAML_DOUBLE_QUOTE = unirex(
+  '"' + rexstr(ANY_QUOTE_CHAR) + '"'
+);
+const ƔAML_SINGLE_QUOTE = unirex(
+  '\'' + rexstr(ANY_ESCAPED_APOS) + '\''
+);
+const ƔAML_SIMPLE_KEY   = unirex(
+  rexstr(FIRST_KEY_CHAR) + rexstr(LATER_KEY_CHAR) + '*'
+);
+const ƔAML_SIMPLE_VALUE = unirex(
+  rexstr(FIRST_VALUE_CHAR) + rexstr(LATER_VALUE_CHAR) + '*'
+);
+const ƔAML_KEY          = unirex(
+  rexstr(ƔAML_DOUBLE_QUOTE) + '|' +
+  rexstr(ƔAML_SINGLE_QUOTE) + '|' +
+  rexstr(ƔAML_SIMPLE_KEY)
+);
+const ƔAML_VALUE        = unirex(
+  rexstr(ƔAML_DOUBLE_QUOTE) + '|' +
+  rexstr(ƔAML_SINGLE_QUOTE) + '|' +
+  rexstr(ƔAML_SIMPLE_VALUE)
+);
+const ƔAML_SEPARATOR    = unirex(
+  rexstr(ANY_WHITE_SPACE) +
+  ':' + rexstr(WHITE_SPACE) +
+  rexstr(ANY_WHITE_SPACE)
+);
+const ƔAML_LINE         = unirex(
+  '(' + rexstr(ƔAML_KEY) + ')' +
+  rexstr(ƔAML_SEPARATOR) +
+  '(' + rexstr(ƔAML_VALUE) + ')'
+);
+
+/*  FRONTMATTER REGEX  */
+
+const ƔAML_FRONTMATTER  = unirex(
+  rexstr(POSSIBLE_STARTS) +
+  rexstr(ƔAML_LOOKAHEAD) +
+  rexstr(ƔAML_START) + rexstr(SOME_NEW_LINES) +
+  '(?:' +
+    rexstr(ANY_WHITE_SPACE) + rexstr(ƔAML_LINE) + rexstr(SOME_NEW_LINES) +
+  '){0,5}' +
+  rexstr(ƔAML_END) + rexstr(POSSIBLE_ENDS)
+);
+
+/*  SEARCHES  */
+
+const FIND_ƔAML_LINE    = unirex(
+  rexstr(NEW_LINE) + rexstr(ANY_WHITE_SPACE) + rexstr(ƔAML_LINE)
+);
+
+/*  STRING PROCESSING  */
+
+function processString (str) {
+  switch (str.charAt(0)) {
+  case '"':
+    return str.substring(1, str.length - 1);
+  case '\'':
+    return str
+      .substring(1, str.length - 1)
+      .replace(/''/g, '\'');
+  default:
+    return str;
+  }
+}
+
+/*  BIO PROCESSING  */
+
+export function processBio(content) {
+  content = content.replace(/&quot;/g, '"').replace(/&apos;/g, '\'');
+  let result = {
+    text: content,
+    metadata: [],
+  };
+  let ɣaml = content.match(ƔAML_FRONTMATTER);
+  if (!ɣaml) {
+    return result;
+  } else {
+    ɣaml = ɣaml[0];
+  }
+  const start = content.search(ƔAML_START);
+  const end = start + ɣaml.length - ɣaml.search(ƔAML_START);
+  result.text = content.substr(end);
+  let metadata = null;
+  let query = new RegExp(rexstr(FIND_ƔAML_LINE), 'g');  //  Some browsers don't allow flags unless both args are strings
+  while ((metadata = query.exec(ɣaml))) {
+    result.metadata.push([
+      processString(metadata[1]),
+      processString(metadata[2]),
+    ]);
+  }
+  return result;
+}
+
+/*  BIO CREATION  */
+
+export function createBio(note, data) {
+  if (!note) note = '';
+  let frontmatter = '';
+  if ((data && data.length) || note.match(/^\s*---\s+/)) {
+    if (!data) frontmatter = '---\n...\n';
+    else {
+      frontmatter += '---\n';
+      for (let i = 0; i < data.length; i++) {
+        let key = '' + data[i][0];
+        let val = '' + data[i][1];
+
+        //  Key processing
+        if (key === (key.match(ƔAML_SIMPLE_KEY) || [])[0]) /*  do nothing  */;
+        else if (key === (key.match(ANY_QUOTE_CHAR) || [])[0]) key = '"' + key + '"';
+        else {
+          key = key
+            .replace(/'/g, '\'\'')
+            .replace(new RegExp(rexstr(NOT_ALLOWED_CHAR), compat_mode ? 'g' : 'gu'), '<27>');
+          key = '\'' + key + '\'';
+        }
+
+        //  Value processing
+        if (val === (val.match(ƔAML_SIMPLE_VALUE) || [])[0]) /*  do nothing  */;
+        else if (val === (val.match(ANY_QUOTE_CHAR) || [])[0]) val = '"' + val + '"';
+        else {
+          key = key
+            .replace(/'/g, '\'\'')
+            .replace(new RegExp(rexstr(NOT_ALLOWED_CHAR), compat_mode ? 'g' : 'gu'), '<27>');
+          key = '\'' + key + '\'';
+        }
+
+        frontmatter += key + ': ' + val + '\n';
+      }
+      frontmatter += '...\n';
+    }
+  }
+  return frontmatter + note;
+}

app/javascript/flavours/glitch/util/counter.js

@@ -0,0 +1,9 @@
+import { urlRegex } from './url_regex';
+
+const urlPlaceholder = 'xxxxxxxxxxxxxxxxxxxxxxx';
+
+export function countableText(inputText) {
+  return inputText
+    .replace(urlRegex, urlPlaceholder)
+    .replace(/(^|[^\/\w])@(([a-z0-9_]+)@[a-z0-9\.\-]+[a-z0-9]+)/ig, '$1@$3');
+};

app/javascript/flavours/glitch/util/emoji/emoji_compressed.js

@@ -0,0 +1,93 @@
+// @preval
+// http://www.unicode.org/Public/emoji/5.0/emoji-test.txt
+// This file contains the compressed version of the emoji data from
+// both emoji_map.json and from emoji-mart's emojiIndex and data objects.
+// It's designed to be emitted in an array format to take up less space
+// over the wire.
+
+const { unicodeToFilename } = require('./unicode_to_filename');
+const { unicodeToUnifiedName } = require('./unicode_to_unified_name');
+const emojiMap         = require('./emoji_map.json');
+const { emojiIndex } = require('emoji-mart');
+const { default: emojiMartData } = require('emoji-mart/dist/data');
+
+const excluded       = ['®', '©', '™'];
+const skins          = ['🏻', '🏼', '🏽', '🏾', '🏿'];
+const shortcodeMap   = {};
+
+const shortCodesToEmojiData = {};
+const emojisWithoutShortCodes = [];
+
+Object.keys(emojiIndex.emojis).forEach(key => {
+  shortcodeMap[emojiIndex.emojis[key].native] = emojiIndex.emojis[key].id;
+});
+
+const stripModifiers = unicode => {
+  skins.forEach(tone => {
+    unicode = unicode.replace(tone, '');
+  });
+
+  return unicode;
+};
+
+Object.keys(emojiMap).forEach(key => {
+  if (excluded.includes(key)) {
+    delete emojiMap[key];
+    return;
+  }
+
+  const normalizedKey = stripModifiers(key);
+  let shortcode       = shortcodeMap[normalizedKey];
+
+  if (!shortcode) {
+    shortcode = shortcodeMap[normalizedKey + '\uFE0F'];
+  }
+
+  const filename = emojiMap[key];
+
+  const filenameData = [key];
+
+  if (unicodeToFilename(key) !== filename) {
+    // filename can't be derived using unicodeToFilename
+    filenameData.push(filename);
+  }
+
+  if (typeof shortcode === 'undefined') {
+    emojisWithoutShortCodes.push(filenameData);
+  } else {
+    if (!Array.isArray(shortCodesToEmojiData[shortcode])) {
+      shortCodesToEmojiData[shortcode] = [[]];
+    }
+    shortCodesToEmojiData[shortcode][0].push(filenameData);
+  }
+});
+
+Object.keys(emojiIndex.emojis).forEach(key => {
+  const { native } = emojiIndex.emojis[key];
+  let { short_names, search, unified } = emojiMartData.emojis[key];
+  if (short_names[0] !== key) {
+    throw new Error('The compresser expects the first short_code to be the ' +
+      'key. It may need to be rewritten if the emoji change such that this ' +
+      'is no longer the case.');
+  }
+
+  short_names = short_names.slice(1); // first short name can be inferred from the key
+
+  const searchData = [native, short_names, search];
+  if (unicodeToUnifiedName(native) !== unified) {
+    // unified name can't be derived from unicodeToUnifiedName
+    searchData.push(unified);
+  }
+
+  shortCodesToEmojiData[key].push(searchData);
+});
+
+// JSON.parse/stringify is to emulate what @preval is doing and avoid any
+// inconsistent behavior in dev mode
+module.exports = JSON.parse(JSON.stringify([
+  shortCodesToEmojiData,
+  emojiMartData.skins,
+  emojiMartData.categories,
+  emojiMartData.short_names,
+  emojisWithoutShortCodes,
+]));

app/javascript/flavours/glitch/util/emoji/emoji_mart_data_light.js

@@ -0,0 +1,41 @@
+// The output of this module is designed to mimic emoji-mart's
+// "data" object, such that we can use it for a light version of emoji-mart's
+// emojiIndex.search functionality.
+const { unicodeToUnifiedName } = require('./unicode_to_unified_name');
+const [ shortCodesToEmojiData, skins, categories, short_names ] = require('./emoji_compressed');
+
+const emojis = {};
+
+// decompress
+Object.keys(shortCodesToEmojiData).forEach((shortCode) => {
+  let [
+    filenameData, // eslint-disable-line no-unused-vars
+    searchData,
+  ] = shortCodesToEmojiData[shortCode];
+  let [
+    native,
+    short_names,
+    search,
+    unified,
+  ] = searchData;
+
+  if (!unified) {
+    // unified name can be derived from unicodeToUnifiedName
+    unified = unicodeToUnifiedName(native);
+  }
+
+  short_names = [shortCode].concat(short_names);
+  emojis[shortCode] = {
+    native,
+    search,
+    short_names,
+    unified,
+  };
+});
+
+module.exports = {
+  emojis,
+  skins,
+  categories,
+  short_names,
+};

app/javascript/flavours/glitch/util/emoji/emoji_mart_search_light.js

@@ -0,0 +1,157 @@
+// This code is largely borrowed from:
+// https://github.com/missive/emoji-mart/blob/5f2ffcc/src/utils/emoji-index.js
+
+import data from './emoji_mart_data_light';
+import { getData, getSanitizedData, intersect } from './emoji_utils';
+
+let originalPool = {};
+let index = {};
+let emojisList = {};
+let emoticonsList = {};
+
+for (let emoji in data.emojis) {
+  let emojiData = data.emojis[emoji];
+  let { short_names, emoticons } = emojiData;
+  let id = short_names[0];
+
+  if (emoticons) {
+    emoticons.forEach(emoticon => {
+      if (emoticonsList[emoticon]) {
+        return;
+      }
+
+      emoticonsList[emoticon] = id;
+    });
+  }
+
+  emojisList[id] = getSanitizedData(id);
+  originalPool[id] = emojiData;
+}
+
+function addCustomToPool(custom, pool) {
+  custom.forEach((emoji) => {
+    let emojiId = emoji.id || emoji.short_names[0];
+
+    if (emojiId && !pool[emojiId]) {
+      pool[emojiId] = getData(emoji);
+      emojisList[emojiId] = getSanitizedData(emoji);
+    }
+  });
+}
+
+function search(value, { emojisToShowFilter, maxResults, include, exclude, custom = [] } = {}) {
+  addCustomToPool(custom, originalPool);
+
+  maxResults = maxResults || 75;
+  include = include || [];
+  exclude = exclude || [];
+
+  let results = null,
+    pool = originalPool;
+
+  if (value.length) {
+    if (value === '-' || value === '-1') {
+      return [emojisList['-1']];
+    }
+
+    let values = value.toLowerCase().split(/[\s|,|\-|_]+/),
+      allResults = [];
+
+    if (values.length > 2) {
+      values = [values[0], values[1]];
+    }
+
+    if (include.length || exclude.length) {
+      pool = {};
+
+      data.categories.forEach(category => {
+        let isIncluded = include && include.length ? include.indexOf(category.name.toLowerCase()) > -1 : true;
+        let isExcluded = exclude && exclude.length ? exclude.indexOf(category.name.toLowerCase()) > -1 : false;
+        if (!isIncluded || isExcluded) {
+          return;
+        }
+
+        category.emojis.forEach(emojiId => pool[emojiId] = data.emojis[emojiId]);
+      });
+
+      if (custom.length) {
+        let customIsIncluded = include && include.length ? include.indexOf('custom') > -1 : true;
+        let customIsExcluded = exclude && exclude.length ? exclude.indexOf('custom') > -1 : false;
+        if (customIsIncluded && !customIsExcluded) {
+          addCustomToPool(custom, pool);
+        }
+      }
+    }
+
+    allResults = values.map((value) => {
+      let aPool = pool,
+        aIndex = index,
+        length = 0;
+
+      for (let charIndex = 0; charIndex < value.length; charIndex++) {
+        const char = value[charIndex];
+        length++;
+
+        aIndex[char] = aIndex[char] || {};
+        aIndex = aIndex[char];
+
+        if (!aIndex.results) {
+          let scores = {};
+
+          aIndex.results = [];
+          aIndex.pool = {};
+
+          for (let id in aPool) {
+            let emoji = aPool[id],
+              { search } = emoji,
+              sub = value.substr(0, length),
+              subIndex = search.indexOf(sub);
+
+            if (subIndex !== -1) {
+              let score = subIndex + 1;
+              if (sub === id) score = 0;
+
+              aIndex.results.push(emojisList[id]);
+              aIndex.pool[id] = emoji;
+
+              scores[id] = score;
+            }
+          }
+
+          aIndex.results.sort((a, b) => {
+            let aScore = scores[a.id],
+              bScore = scores[b.id];
+
+            return aScore - bScore;
+          });
+        }
+
+        aPool = aIndex.pool;
+      }
+
+      return aIndex.results;
+    }).filter(a => a);
+
+    if (allResults.length > 1) {
+      results = intersect.apply(null, allResults);
+    } else if (allResults.length) {
+      results = allResults[0];
+    } else {
+      results = [];
+    }
+  }
+
+  if (results) {
+    if (emojisToShowFilter) {
+      results = results.filter((result) => emojisToShowFilter(data.emojis[result.id].unified));
+    }
+
+    if (results && results.length > maxResults) {
+      results = results.slice(0, maxResults);
+    }
+  }
+
+  return results;
+}
+
+export { search };

app/javascript/flavours/glitch/util/emoji/emoji_picker.js

@@ -0,0 +1,7 @@
+import Picker from 'emoji-mart/dist-es/components/picker';
+import Emoji from 'emoji-mart/dist-es/components/emoji';
+
+export {
+  Picker,
+  Emoji,
+};

app/javascript/flavours/glitch/util/emoji/emoji_unicode_mapping_light.js

@@ -0,0 +1,35 @@
+// A mapping of unicode strings to an object containing the filename
+// (i.e. the svg filename) and a shortCode intended to be shown
+// as a "title" attribute in an HTML element (aka tooltip).
+
+const [
+  shortCodesToEmojiData,
+  skins, // eslint-disable-line no-unused-vars
+  categories, // eslint-disable-line no-unused-vars
+  short_names, // eslint-disable-line no-unused-vars
+  emojisWithoutShortCodes,
+] = require('./emoji_compressed');
+const { unicodeToFilename } = require('./unicode_to_filename');
+
+// decompress
+const unicodeMapping = {};
+
+function processEmojiMapData(emojiMapData, shortCode) {
+  let [ native, filename ] = emojiMapData;
+  if (!filename) {
+    // filename name can be derived from unicodeToFilename
+    filename = unicodeToFilename(native);
+  }
+  unicodeMapping[native] = {
+    shortCode: shortCode,
+    filename: filename,
+  };
+}
+
+Object.keys(shortCodesToEmojiData).forEach((shortCode) => {
+  let [ filenameData ] = shortCodesToEmojiData[shortCode];
+  filenameData.forEach(emojiMapData => processEmojiMapData(emojiMapData, shortCode));
+});
+emojisWithoutShortCodes.forEach(emojiMapData => processEmojiMapData(emojiMapData));
+
+module.exports = unicodeMapping;

app/javascript/flavours/glitch/util/emoji/emoji_utils.js

@@ -0,0 +1,258 @@
+// This code is largely borrowed from:
+// https://github.com/missive/emoji-mart/blob/5f2ffcc/src/utils/index.js
+
+import data from './emoji_mart_data_light';
+
+const buildSearch = (data) => {
+  const search = [];
+
+  let addToSearch = (strings, split) => {
+    if (!strings) {
+      return;
+    }
+
+    (Array.isArray(strings) ? strings : [strings]).forEach((string) => {
+      (split ? string.split(/[-|_|\s]+/) : [string]).forEach((s) => {
+        s = s.toLowerCase();
+
+        if (search.indexOf(s) === -1) {
+          search.push(s);
+        }
+      });
+    });
+  };
+
+  addToSearch(data.short_names, true);
+  addToSearch(data.name, true);
+  addToSearch(data.keywords, false);
+  addToSearch(data.emoticons, false);
+
+  return search.join(',');
+};
+
+const _String = String;
+
+const stringFromCodePoint = _String.fromCodePoint || function () {
+  let MAX_SIZE = 0x4000;
+  let codeUnits = [];
+  let highSurrogate;
+  let lowSurrogate;
+  let index = -1;
+  let length = arguments.length;
+  if (!length) {
+    return '';
+  }
+  let result = '';
+  while (++index < length) {
+    let codePoint = Number(arguments[index]);
+    if (
+      !isFinite(codePoint) ||       // `NaN`, `+Infinity`, or `-Infinity`
+      codePoint < 0 ||              // not a valid Unicode code point
+      codePoint > 0x10FFFF ||       // not a valid Unicode code point
+      Math.floor(codePoint) !== codePoint // not an integer
+    ) {
+      throw RangeError('Invalid code point: ' + codePoint);
+    }
+    if (codePoint <= 0xFFFF) { // BMP code point
+      codeUnits.push(codePoint);
+    } else { // Astral code point; split in surrogate halves
+      // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
+      codePoint -= 0x10000;
+      highSurrogate = (codePoint >> 10) + 0xD800;
+      lowSurrogate = (codePoint % 0x400) + 0xDC00;
+      codeUnits.push(highSurrogate, lowSurrogate);
+    }
+    if (index + 1 === length || codeUnits.length > MAX_SIZE) {
+      result += String.fromCharCode.apply(null, codeUnits);
+      codeUnits.length = 0;
+    }
+  }
+  return result;
+};
+
+
+const _JSON = JSON;
+
+const COLONS_REGEX = /^(?:\:([^\:]+)\:)(?:\:skin-tone-(\d)\:)?$/;
+const SKINS = [
+  '1F3FA', '1F3FB', '1F3FC',
+  '1F3FD', '1F3FE', '1F3FF',
+];
+
+function unifiedToNative(unified) {
+  let unicodes = unified.split('-'),
+    codePoints = unicodes.map((u) => `0x${u}`);
+
+  return stringFromCodePoint.apply(null, codePoints);
+}
+
+function sanitize(emoji) {
+  let { name, short_names, skin_tone, skin_variations, emoticons, unified, custom, imageUrl } = emoji,
+    id = emoji.id || short_names[0],
+    colons = `:${id}:`;
+
+  if (custom) {
+    return {
+      id,
+      name,
+      colons,
+      emoticons,
+      custom,
+      imageUrl,
+    };
+  }
+
+  if (skin_tone) {
+    colons += `:skin-tone-${skin_tone}:`;
+  }
+
+  return {
+    id,
+    name,
+    colons,
+    emoticons,
+    unified: unified.toLowerCase(),
+    skin: skin_tone || (skin_variations ? 1 : null),
+    native: unifiedToNative(unified),
+  };
+}
+
+function getSanitizedData() {
+  return sanitize(getData(...arguments));
+}
+
+function getData(emoji, skin, set) {
+  let emojiData = {};
+
+  if (typeof emoji === 'string') {
+    let matches = emoji.match(COLONS_REGEX);
+
+    if (matches) {
+      emoji = matches[1];
+
+      if (matches[2]) {
+        skin = parseInt(matches[2]);
+      }
+    }
+
+    if (data.short_names.hasOwnProperty(emoji)) {
+      emoji = data.short_names[emoji];
+    }
+
+    if (data.emojis.hasOwnProperty(emoji)) {
+      emojiData = data.emojis[emoji];
+    }
+  } else if (emoji.id) {
+    if (data.short_names.hasOwnProperty(emoji.id)) {
+      emoji.id = data.short_names[emoji.id];
+    }
+
+    if (data.emojis.hasOwnProperty(emoji.id)) {
+      emojiData = data.emojis[emoji.id];
+      skin = skin || emoji.skin;
+    }
+  }
+
+  if (!Object.keys(emojiData).length) {
+    emojiData = emoji;
+    emojiData.custom = true;
+
+    if (!emojiData.search) {
+      emojiData.search = buildSearch(emoji);
+    }
+  }
+
+  emojiData.emoticons = emojiData.emoticons || [];
+  emojiData.variations = emojiData.variations || [];
+
+  if (emojiData.skin_variations && skin > 1 && set) {
+    emojiData = JSON.parse(_JSON.stringify(emojiData));
+
+    let skinKey = SKINS[skin - 1],
+      variationData = emojiData.skin_variations[skinKey];
+
+    if (!variationData.variations && emojiData.variations) {
+      delete emojiData.variations;
+    }
+
+    if (variationData[`has_img_${set}`]) {
+      emojiData.skin_tone = skin;
+
+      for (let k in variationData) {
+        let v = variationData[k];
+        emojiData[k] = v;
+      }
+    }
+  }
+
+  if (emojiData.variations && emojiData.variations.length) {
+    emojiData = JSON.parse(_JSON.stringify(emojiData));
+    emojiData.unified = emojiData.variations.shift();
+  }
+
+  return emojiData;
+}
+
+function uniq(arr) {
+  return arr.reduce((acc, item) => {
+    if (acc.indexOf(item) === -1) {
+      acc.push(item);
+    }
+    return acc;
+  }, []);
+}
+
+function intersect(a, b) {
+  const uniqA = uniq(a);
+  const uniqB = uniq(b);
+
+  return uniqA.filter(item => uniqB.indexOf(item) >= 0);
+}
+
+function deepMerge(a, b) {
+  let o = {};
+
+  for (let key in a) {
+    let originalValue = a[key],
+      value = originalValue;
+
+    if (b.hasOwnProperty(key)) {
+      value = b[key];
+    }
+
+    if (typeof value === 'object') {
+      value = deepMerge(originalValue, value);
+    }
+
+    o[key] = value;
+  }
+
+  return o;
+}
+
+// https://github.com/sonicdoe/measure-scrollbar
+function measureScrollbar() {
+  const div = document.createElement('div');
+
+  div.style.width = '100px';
+  div.style.height = '100px';
+  div.style.overflow = 'scroll';
+  div.style.position = 'absolute';
+  div.style.top = '-9999px';
+
+  document.body.appendChild(div);
+  const scrollbarWidth = div.offsetWidth - div.clientWidth;
+  document.body.removeChild(div);
+
+  return scrollbarWidth;
+}
+
+export {
+  getData,
+  getSanitizedData,
+  uniq,
+  intersect,
+  deepMerge,
+  unifiedToNative,
+  measureScrollbar,
+};

app/javascript/flavours/glitch/util/emoji/index.js

@@ -0,0 +1,95 @@
+import { autoPlayGif } from 'flavours/glitch/util/initial_state';
+import unicodeMapping from './emoji_unicode_mapping_light';
+import Trie from 'substring-trie';
+
+const trie = new Trie(Object.keys(unicodeMapping));
+
+const assetHost = process.env.CDN_HOST || '';
+
+const emojify = (str, customEmojis = {}) => {
+  const tagCharsWithoutEmojis = '<&';
+  const tagCharsWithEmojis = Object.keys(customEmojis).length ? '<&:' : '<&';
+  let rtn = '', tagChars = tagCharsWithEmojis, invisible = 0;
+  for (;;) {
+    let match, i = 0, tag;
+    while (i < str.length && (tag = tagChars.indexOf(str[i])) === -1 && (invisible || !(match = trie.search(str.slice(i))))) {
+      i += str.codePointAt(i) < 65536 ? 1 : 2;
+    }
+    let rend, replacement = '';
+    if (i === str.length) {
+      break;
+    } else if (str[i] === ':') {
+      if (!(() => {
+        rend = str.indexOf(':', i + 1) + 1;
+        if (!rend) return false; // no pair of ':'
+        const lt = str.indexOf('<', i + 1);
+        if (!(lt === -1 || lt >= rend)) return false; // tag appeared before closing ':'
+        const shortname = str.slice(i, rend);
+        // now got a replacee as ':shortname:'
+        // if you want additional emoji handler, add statements below which set replacement and return true.
+        if (shortname in customEmojis) {
+          const filename = autoPlayGif ? customEmojis[shortname].url : customEmojis[shortname].static_url;
+          replacement = `<img draggable="false" class="emojione" alt="${shortname}" title="${shortname}" src="${filename}" />`;
+          return true;
+        }
+        return false;
+      })()) rend = ++i;
+    } else if (tag >= 0) { // <, &
+      rend = str.indexOf('>;'[tag], i + 1) + 1;
+      if (!rend) {
+        break;
+      }
+      if (tag === 0) {
+        if (invisible) {
+          if (str[i + 1] === '/') { // closing tag
+            if (!--invisible) {
+              tagChars = tagCharsWithEmojis;
+            }
+          } else if (str[rend - 2] !== '/') { // opening tag
+            invisible++;
+          }
+        } else {
+          if (str.startsWith('<span class="invisible">', i)) {
+            // avoid emojifying on invisible text
+            invisible = 1;
+            tagChars = tagCharsWithoutEmojis;
+          }
+        }
+      }
+      i = rend;
+    } else { // matched to unicode emoji
+      const { filename, shortCode } = unicodeMapping[match];
+      const title = shortCode ? `:${shortCode}:` : '';
+      replacement = `<img draggable="false" class="emojione" alt="${match}" title="${title}" src="${assetHost}/emoji/${filename}.svg" />`;
+      rend = i + match.length;
+    }
+    rtn += str.slice(0, i) + replacement;
+    str = str.slice(rend);
+  }
+  return rtn + str;
+};
+
+export default emojify;
+
+export const buildCustomEmojis = (customEmojis) => {
+  const emojis = [];
+
+  customEmojis.forEach(emoji => {
+    const shortcode = emoji.get('shortcode');
+    const url       = autoPlayGif ? emoji.get('url') : emoji.get('static_url');
+    const name      = shortcode.replace(':', '');
+
+    emojis.push({
+      id: name,
+      name,
+      short_names: [name],
+      text: '',
+      emoticons: [],
+      keywords: [name],
+      imageUrl: url,
+      custom: true,
+    });
+  });
+
+  return emojis;
+};

app/javascript/flavours/glitch/util/emoji/unicode_to_filename.js

@@ -0,0 +1,26 @@
+// taken from:
+// https://github.com/twitter/twemoji/blob/47732c7/twemoji-generator.js#L848-L866
+exports.unicodeToFilename = (str) => {
+  let result = '';
+  let charCode = 0;
+  let p = 0;
+  let i = 0;
+  while (i < str.length) {
+    charCode = str.charCodeAt(i++);
+    if (p) {
+      if (result.length > 0) {
+        result += '-';
+      }
+      result += (0x10000 + ((p - 0xD800) << 10) + (charCode - 0xDC00)).toString(16);
+      p = 0;
+    } else if (0xD800 <= charCode && charCode <= 0xDBFF) {
+      p = charCode;
+    } else {
+      if (result.length > 0) {
+        result += '-';
+      }
+      result += charCode.toString(16);
+    }
+  }
+  return result;
+};

app/javascript/flavours/glitch/util/emoji/unicode_to_unified_name.js

@@ -0,0 +1,17 @@
+function padLeft(str, num) {
+  while (str.length < num) {
+    str = '0' + str;
+  }
+  return str;
+}
+
+exports.unicodeToUnifiedName = (str) => {
+  let output = '';
+  for (let i = 0; i < str.length; i += 2) {
+    if (i > 0) {
+      output += '-';
+    }
+    output += padLeft(str.codePointAt(i).toString(16).toUpperCase(), 4);
+  }
+  return output;
+};

app/javascript/flavours/glitch/util/extra_polyfills.js

@@ -0,0 +1,5 @@
+import 'intersection-observer';
+import 'requestidlecallback';
+import objectFitImages  from 'object-fit-images';
+
+objectFitImages();

app/javascript/flavours/glitch/util/fullscreen.js

@@ -0,0 +1,46 @@
+// APIs for normalizing fullscreen operations. Note that Edge uses
+// the WebKit-prefixed APIs currently (as of Edge 16).
+
+export const isFullscreen = () => document.fullscreenElement ||
+  document.webkitFullscreenElement ||
+  document.mozFullScreenElement;
+
+export const exitFullscreen = () => {
+  if (document.exitFullscreen) {
+    document.exitFullscreen();
+  } else if (document.webkitExitFullscreen) {
+    document.webkitExitFullscreen();
+  } else if (document.mozCancelFullScreen) {
+    document.mozCancelFullScreen();
+  }
+};
+
+export const requestFullscreen = el => {
+  if (el.requestFullscreen) {
+    el.requestFullscreen();
+  } else if (el.webkitRequestFullscreen) {
+    el.webkitRequestFullscreen();
+  } else if (el.mozRequestFullScreen) {
+    el.mozRequestFullScreen();
+  }
+};
+
+export const attachFullscreenListener = (listener) => {
+  if ('onfullscreenchange' in document) {
+    document.addEventListener('fullscreenchange', listener);
+  } else if ('onwebkitfullscreenchange' in document) {
+    document.addEventListener('webkitfullscreenchange', listener);
+  } else if ('onmozfullscreenchange' in document) {
+    document.addEventListener('mozfullscreenchange', listener);
+  }
+};
+
+export const detachFullscreenListener = (listener) => {
+  if ('onfullscreenchange' in document) {
+    document.removeEventListener('fullscreenchange', listener);
+  } else if ('onwebkitfullscreenchange' in document) {
+    document.removeEventListener('webkitfullscreenchange', listener);
+  } else if ('onmozfullscreenchange' in document) {
+    document.removeEventListener('mozfullscreenchange', listener);
+  }
+};

app/javascript/flavours/glitch/util/get_rect_from_entry.js

@@ -0,0 +1,21 @@
+
+// Get the bounding client rect from an IntersectionObserver entry.
+// This is to work around a bug in Chrome: https://crbug.com/737228
+
+let hasBoundingRectBug;
+
+function getRectFromEntry(entry) {
+  if (typeof hasBoundingRectBug !== 'boolean') {
+    const boundingRect = entry.target.getBoundingClientRect();
+    const observerRect = entry.boundingClientRect;
+    hasBoundingRectBug = boundingRect.height !== observerRect.height ||
+      boundingRect.top !== observerRect.top ||
+      boundingRect.width !== observerRect.width ||
+      boundingRect.bottom !== observerRect.bottom ||
+      boundingRect.left !== observerRect.left ||
+      boundingRect.right !== observerRect.right;
+  }
+  return hasBoundingRectBug ? entry.target.getBoundingClientRect() : entry.boundingClientRect;
+}
+
+export default getRectFromEntry;

app/javascript/flavours/glitch/util/initial_state.js

@@ -0,0 +1,21 @@
+const element = document.getElementById('initial-state');
+const initialState = element && function () {
+  const result = JSON.parse(element.textContent);
+  try {
+    result.local_settings = JSON.parse(localStorage.getItem('mastodon-settings'));
+  } catch (e) {
+    result.local_settings = {};
+  }
+  return result;
+}();
+
+const getMeta = (prop) => initialState && initialState.meta && initialState.meta[prop];
+
+export const reduceMotion = getMeta('reduce_motion');
+export const autoPlayGif = getMeta('auto_play_gif');
+export const unfollowModal = getMeta('unfollow_modal');
+export const boostModal = getMeta('boost_modal');
+export const deleteModal = getMeta('delete_modal');
+export const me = getMeta('me');
+
+export default initialState;

app/javascript/flavours/glitch/util/intersection_observer_wrapper.js

@@ -0,0 +1,57 @@
+// Wrapper for IntersectionObserver in order to make working with it
+// a bit easier. We also follow this performance advice:
+// "If you need to observe multiple elements, it is both possible and
+// advised to observe multiple elements using the same IntersectionObserver
+// instance by calling observe() multiple times."
+// https://developers.google.com/web/updates/2016/04/intersectionobserver
+
+class IntersectionObserverWrapper {
+
+  callbacks = {};
+  observerBacklog = [];
+  observer = null;
+
+  connect (options) {
+    const onIntersection = (entries) => {
+      entries.forEach(entry => {
+        const id = entry.target.getAttribute('data-id');
+        if (this.callbacks[id]) {
+          this.callbacks[id](entry);
+        }
+      });
+    };
+
+    this.observer = new IntersectionObserver(onIntersection, options);
+    this.observerBacklog.forEach(([ id, node, callback ]) => {
+      this.observe(id, node, callback);
+    });
+    this.observerBacklog = null;
+  }
+
+  observe (id, node, callback) {
+    if (!this.observer) {
+      this.observerBacklog.push([ id, node, callback ]);
+    } else {
+      this.callbacks[id] = callback;
+      this.observer.observe(node);
+    }
+  }
+
+  unobserve (id, node) {
+    if (this.observer) {
+      delete this.callbacks[id];
+      this.observer.unobserve(node);
+    }
+  }
+
+  disconnect () {
+    if (this.observer) {
+      this.callbacks = {};
+      this.observer.disconnect();
+      this.observer = null;
+    }
+  }
+
+}
+
+export default IntersectionObserverWrapper;

app/javascript/flavours/glitch/util/is_mobile.js

@@ -0,0 +1,34 @@
+import detectPassiveEvents from 'detect-passive-events';
+
+const LAYOUT_BREAKPOINT = 630;
+
+export function isMobile(width, columns) {
+  switch (columns) {
+  case 'multiple':
+    return false;
+  case 'single':
+    return true;
+  default:
+    return width <= LAYOUT_BREAKPOINT;
+  }
+};
+
+const iOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;
+
+let userTouching = false;
+let listenerOptions = detectPassiveEvents.hasSupport ? { passive: true } : false;
+
+function touchListener() {
+  userTouching = true;
+  window.removeEventListener('touchstart', touchListener, listenerOptions);
+}
+
+window.addEventListener('touchstart', touchListener, listenerOptions);
+
+export function isUserTouching() {
+  return userTouching;
+}
+
+export function isIOS() {
+  return iOS;
+};

app/javascript/flavours/glitch/util/link_header.js

@@ -0,0 +1,33 @@
+import Link from 'http-link-header';
+import querystring from 'querystring';
+
+Link.parseAttrs = (link, parts) => {
+  let match = null;
+  let attr  = '';
+  let value = '';
+  let attrs = '';
+
+  let uriAttrs = /<(.*)>;\s*(.*)/gi.exec(parts);
+
+  if(uriAttrs) {
+    attrs = uriAttrs[2];
+    link  = Link.parseParams(link, uriAttrs[1]);
+  }
+
+  while(match = Link.attrPattern.exec(attrs)) { // eslint-disable-line no-cond-assign
+    attr  = match[1].toLowerCase();
+    value = match[4] || match[3] || match[2];
+
+    if( /\*$/.test(attr)) {
+      Link.setAttr(link, attr, Link.parseExtendedValue(value));
+    } else if(/%/.test(value)) {
+      Link.setAttr(link, attr, querystring.decode(value));
+    } else {
+      Link.setAttr(link, attr, value);
+    }
+  }
+
+  return link;
+};
+
+export default Link;

app/javascript/flavours/glitch/util/load_polyfills.js

@@ -0,0 +1,39 @@
+// Convenience function to load polyfills and return a promise when it's done.
+// If there are no polyfills, then this is just Promise.resolve() which means
+// it will execute in the same tick of the event loop (i.e. near-instant).
+
+function importBasePolyfills() {
+  return import(/* webpackChunkName: "base_polyfills" */ './base_polyfills');
+}
+
+function importExtraPolyfills() {
+  return import(/* webpackChunkName: "extra_polyfills" */ './extra_polyfills');
+}
+
+function loadPolyfills() {
+  const needsBasePolyfills = !(
+    window.Intl &&
+    Object.assign &&
+    Number.isNaN &&
+    window.Symbol &&
+    Array.prototype.includes
+  );
+
+  // Latest version of Firefox and Safari do not have IntersectionObserver.
+  // Edge does not have requestIdleCallback and object-fit CSS property.
+  // This avoids shipping them all the polyfills.
+  const needsExtraPolyfills = !(
+    window.IntersectionObserver &&
+    window.IntersectionObserverEntry &&
+    'isIntersecting' in IntersectionObserverEntry.prototype &&
+    window.requestIdleCallback &&
+    'object-fit' in (new Image()).style
+  );
+
+  return Promise.all([
+    needsBasePolyfills && importBasePolyfills(),
+    needsExtraPolyfills && importExtraPolyfills(),
+  ]);
+}
+
+export default loadPolyfills;

app/javascript/flavours/glitch/util/main.js

@@ -0,0 +1,39 @@
+import * as WebPushSubscription from './web_push_subscription';
+import Mastodon from 'flavours/glitch/containers/mastodon';
+import React from 'react';
+import ReactDOM from 'react-dom';
+import ready from './ready';
+
+const perf = require('./performance');
+
+function main() {
+  perf.start('main()');
+
+  if (window.history && history.replaceState) {
+    const { pathname, search, hash } = window.location;
+    const path = pathname + search + hash;
+    if (!(/^\/web[$/]/).test(path)) {
+      history.replaceState(null, document.title, `/web${path}`);
+    }
+  }
+
+  ready(() => {
+    const mountNode = document.getElementById('mastodon');
+    const props = JSON.parse(mountNode.getAttribute('data-props'));
+
+    ReactDOM.render(<Mastodon {...props} />, mountNode);
+    if (process.env.NODE_ENV === 'production') {
+      // avoid offline in dev mode because it's harder to debug
+      require('offline-plugin/runtime').install();
+      WebPushSubscription.register();
+    }
+    perf.stop('main()');
+
+    // remember the initial URL
+    if (window.history && typeof window._mastoInitialHistoryLen === 'undefined') {
+      window._mastoInitialHistoryLen = window.history.length;
+    }
+  });
+}
+
+export default main;

app/javascript/flavours/glitch/util/optional_motion.js

@@ -0,0 +1,5 @@
+import { reduceMotion } from 'flavours/glitch/util/initial_state';
+import ReducedMotion from './reduced_motion';
+import Motion from 'react-motion/lib/Motion';
+
+export default reduceMotion ? ReducedMotion : Motion;

app/javascript/flavours/glitch/util/performance.js

@@ -0,0 +1,31 @@
+//
+// Tools for performance debugging, only enabled in development mode.
+// Open up Chrome Dev Tools, then Timeline, then User Timing to see output.
+// Also see config/webpack/loaders/mark.js for the webpack loader marks.
+//
+
+let marky;
+
+if (process.env.NODE_ENV === 'development') {
+  if (typeof performance !== 'undefined' && performance.setResourceTimingBufferSize) {
+    // Increase Firefox's performance entry limit; otherwise it's capped to 150.
+    // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1331135
+    performance.setResourceTimingBufferSize(Infinity);
+  }
+  marky = require('marky');
+  // allows us to easily do e.g. ReactPerf.printWasted() while debugging
+  //window.ReactPerf = require('react-addons-perf');
+  //window.ReactPerf.start();
+}
+
+export function start(name) {
+  if (process.env.NODE_ENV === 'development') {
+    marky.mark(name);
+  }
+}
+
+export function stop(name) {
+  if (process.env.NODE_ENV === 'development') {
+    marky.stop(name);
+  }
+}

app/javascript/flavours/glitch/util/react_router_helpers.js

@@ -0,0 +1,64 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { Switch, Route } from 'react-router-dom';
+
+import ColumnLoading from 'flavours/glitch/features/ui/components/column_loading';
+import BundleColumnError from 'flavours/glitch/features/ui/components/bundle_column_error';
+import BundleContainer from 'flavours/glitch/features/ui/containers/bundle_container';
+
+// Small wrapper to pass multiColumn to the route components
+export class WrappedSwitch extends React.PureComponent {
+
+  render () {
+    const { multiColumn, children } = this.props;
+
+    return (
+      <Switch>
+        {React.Children.map(children, child => React.cloneElement(child, { multiColumn }))}
+      </Switch>
+    );
+  }
+
+}
+
+WrappedSwitch.propTypes = {
+  multiColumn: PropTypes.bool,
+  children: PropTypes.node,
+};
+
+// Small Wraper to extract the params from the route and pass
+// them to the rendered component, together with the content to
+// be rendered inside (the children)
+export class WrappedRoute extends React.Component {
+
+  static propTypes = {
+    component: PropTypes.func.isRequired,
+    content: PropTypes.node,
+    multiColumn: PropTypes.bool,
+  }
+
+  renderComponent = ({ match }) => {
+    const { component, content, multiColumn } = this.props;
+
+    return (
+      <BundleContainer fetchComponent={component} loading={this.renderLoading} error={this.renderError}>
+        {Component => <Component params={match.params} multiColumn={multiColumn}>{content}</Component>}
+      </BundleContainer>
+    );
+  }
+
+  renderLoading = () => {
+    return <ColumnLoading />;
+  }
+
+  renderError = (props) => {
+    return <BundleColumnError {...props} />;
+  }
+
+  render () {
+    const { component: Component, content, ...rest } = this.props;
+
+    return <Route {...rest} render={this.renderComponent} />;
+  }
+
+}

app/javascript/flavours/glitch/util/ready.js

@@ -0,0 +1,7 @@
+export default function ready(loaded) {
+  if (['interactive', 'complete'].includes(document.readyState)) {
+    loaded();
+  } else {
+    document.addEventListener('DOMContentLoaded', loaded);
+  }
+}

app/javascript/flavours/glitch/util/reduced_motion.js

@@ -0,0 +1,44 @@
+// Like react-motion's Motion, but reduces all animations to cross-fades
+// for the benefit of users with motion sickness.
+import React from 'react';
+import Motion from 'react-motion/lib/Motion';
+import PropTypes from 'prop-types';
+
+const stylesToKeep = ['opacity', 'backgroundOpacity'];
+
+const extractValue = (value) => {
+  // This is either an object with a "val" property or it's a number
+  return (typeof value === 'object' && value && 'val' in value) ? value.val : value;
+};
+
+class ReducedMotion extends React.Component {
+
+  static propTypes = {
+    defaultStyle: PropTypes.object,
+    style: PropTypes.object,
+    children: PropTypes.func,
+  }
+
+  render() {
+
+    const { style, defaultStyle, children } = this.props;
+
+    Object.keys(style).forEach(key => {
+      if (stylesToKeep.includes(key)) {
+        return;
+      }
+      // If it's setting an x or height or scale or some other value, we need
+      // to preserve the end-state value without actually animating it
+      style[key] = defaultStyle[key] = extractValue(style[key]);
+    });
+
+    return (
+      <Motion style={style} defaultStyle={defaultStyle}>
+        {children}
+      </Motion>
+    );
+  }
+
+}
+
+export default ReducedMotion;

app/javascript/flavours/glitch/util/rtl.js

@@ -0,0 +1,31 @@
+// U+0590  to U+05FF  - Hebrew
+// U+0600  to U+06FF  - Arabic
+// U+0700  to U+074F  - Syriac
+// U+0750  to U+077F  - Arabic Supplement
+// U+0780  to U+07BF  - Thaana
+// U+07C0  to U+07FF  - N'Ko
+// U+0800  to U+083F  - Samaritan
+// U+08A0  to U+08FF  - Arabic Extended-A
+// U+FB1D  to U+FB4F  - Hebrew presentation forms
+// U+FB50  to U+FDFF  - Arabic presentation forms A
+// U+FE70  to U+FEFF  - Arabic presentation forms B
+
+const rtlChars = /[\u0590-\u083F]|[\u08A0-\u08FF]|[\uFB1D-\uFDFF]|[\uFE70-\uFEFF]/mg;
+
+export function isRtl(text) {
+  if (text.length === 0) {
+    return false;
+  }
+
+  text = text.replace(/(?:^|[^\/\w])@([a-z0-9_]+(@[a-z0-9\.\-]+)?)/ig, '');
+  text = text.replace(/(?:^|[^\/\w])#([\S]+)/ig, '');
+  text = text.replace(/\s+/g, '');
+
+  const matches = text.match(rtlChars);
+
+  if (!matches) {
+    return false;
+  }
+
+  return matches.length / text.length > 0.3;
+};

app/javascript/flavours/glitch/util/schedule_idle_task.js

@@ -0,0 +1,29 @@
+// Wrapper to call requestIdleCallback() to schedule low-priority work.
+// See https://developer.mozilla.org/en-US/docs/Web/API/Background_Tasks_API
+// for a good breakdown of the concepts behind this.
+
+import Queue from 'tiny-queue';
+
+const taskQueue = new Queue();
+let runningRequestIdleCallback = false;
+
+function runTasks(deadline) {
+  while (taskQueue.length && deadline.timeRemaining() > 0) {
+    taskQueue.shift()();
+  }
+  if (taskQueue.length) {
+    requestIdleCallback(runTasks);
+  } else {
+    runningRequestIdleCallback = false;
+  }
+}
+
+function scheduleIdleTask(task) {
+  taskQueue.push(task);
+  if (!runningRequestIdleCallback) {
+    runningRequestIdleCallback = true;
+    requestIdleCallback(runTasks);
+  }
+}
+
+export default scheduleIdleTask;

app/javascript/flavours/glitch/util/scroll.js

@@ -0,0 +1,30 @@
+const easingOutQuint = (x, t, b, c, d) => c * ((t = t / d - 1) * t * t * t * t + 1) + b;
+
+const scroll = (node, key, target) => {
+  const startTime = Date.now();
+  const offset    = node[key];
+  const gap       = target - offset;
+  const duration  = 1000;
+  let interrupt   = false;
+
+  const step = () => {
+    const elapsed    = Date.now() - startTime;
+    const percentage = elapsed / duration;
+
+    if (percentage > 1 || interrupt) {
+      return;
+    }
+
+    node[key] = easingOutQuint(0, elapsed, offset, gap, duration);
+    requestAnimationFrame(step);
+  };
+
+  step();
+
+  return () => {
+    interrupt = true;
+  };
+};
+
+export const scrollRight = (node, position) => scroll(node, 'scrollLeft', position);
+export const scrollTop = (node) => scroll(node, 'scrollTop', 0);

app/javascript/flavours/glitch/util/stream.js

@@ -0,0 +1,73 @@
+import WebSocketClient from 'websocket.js';
+
+export function connectStream(path, pollingRefresh = null, callbacks = () => ({ onConnect() {}, onDisconnect() {}, onReceive() {} })) {
+  return (dispatch, getState) => {
+    const streamingAPIBaseURL = getState().getIn(['meta', 'streaming_api_base_url']);
+    const accessToken = getState().getIn(['meta', 'access_token']);
+    const { onConnect, onDisconnect, onReceive } = callbacks(dispatch, getState);
+    let polling = null;
+
+    const setupPolling = () => {
+      polling = setInterval(() => {
+        pollingRefresh(dispatch);
+      }, 20000);
+    };
+
+    const clearPolling = () => {
+      if (polling) {
+        clearInterval(polling);
+        polling = null;
+      }
+    };
+
+    const subscription = getStream(streamingAPIBaseURL, accessToken, path, {
+      connected () {
+        if (pollingRefresh) {
+          clearPolling();
+        }
+        onConnect();
+      },
+
+      disconnected () {
+        if (pollingRefresh) {
+          setupPolling();
+        }
+        onDisconnect();
+      },
+
+      received (data) {
+        onReceive(data);
+      },
+
+      reconnected () {
+        if (pollingRefresh) {
+          clearPolling();
+          pollingRefresh(dispatch);
+        }
+        onConnect();
+      },
+
+    });
+
+    const disconnect = () => {
+      if (subscription) {
+        subscription.close();
+      }
+      clearPolling();
+    };
+
+    return disconnect;
+  };
+}
+
+
+export default function getStream(streamingAPIBaseURL, accessToken, stream, { connected, received, disconnected, reconnected }) {
+  const ws = new WebSocketClient(`${streamingAPIBaseURL}/api/v1/streaming/?access_token=${accessToken}&stream=${stream}`);
+
+  ws.onopen      = connected;
+  ws.onmessage   = e => received(JSON.parse(e.data));
+  ws.onclose     = disconnected;
+  ws.onreconnect = reconnected;
+
+  return ws;
+};

app/javascript/flavours/glitch/util/url_regex.js

@@ -0,0 +1,196 @@
+const regexen = {};
+
+const regexSupplant = function(regex, flags) {
+  flags = flags || '';
+  if (typeof regex !== 'string') {
+    if (regex.global && flags.indexOf('g') < 0) {
+      flags += 'g';
+    }
+    if (regex.ignoreCase && flags.indexOf('i') < 0) {
+      flags += 'i';
+    }
+    if (regex.multiline && flags.indexOf('m') < 0) {
+      flags += 'm';
+    }
+
+    regex = regex.source;
+  }
+  return new RegExp(regex.replace(/#\{(\w+)\}/g, function(match, name) {
+    var newRegex = regexen[name] || '';
+    if (typeof newRegex !== 'string') {
+      newRegex = newRegex.source;
+    }
+    return newRegex;
+  }), flags);
+};
+
+const stringSupplant = function(str, values) {
+  return str.replace(/#\{(\w+)\}/g, function(match, name) {
+    return values[name] || '';
+  });
+};
+
+export const urlRegex = (function() {
+  regexen.spaces_group = /\x09-\x0D\x20\x85\xA0\u1680\u180E\u2000-\u200A\u2028\u2029\u202F\u205F\u3000/;
+  regexen.invalid_chars_group = /\uFFFE\uFEFF\uFFFF\u202A-\u202E/;
+  regexen.punct = /\!'#%&'\(\)*\+,\\\-\.\/:;<=>\?@\[\]\^_{|}~\$/;
+  regexen.validUrlPrecedingChars = regexSupplant(/(?:[^A-Za-z0-9@＠$#＃#{invalid_chars_group}]|^)/);
+  regexen.invalidDomainChars = stringSupplant('#{punct}#{spaces_group}#{invalid_chars_group}', regexen);
+  regexen.validDomainChars = regexSupplant(/[^#{invalidDomainChars}]/);
+  regexen.validSubdomain = regexSupplant(/(?:(?:#{validDomainChars}(?:[_-]|#{validDomainChars})*)?#{validDomainChars}\.)/);
+  regexen.validDomainName = regexSupplant(/(?:(?:#{validDomainChars}(?:-|#{validDomainChars})*)?#{validDomainChars}\.)/);
+  regexen.validGTLD = regexSupplant(RegExp(
+  '(?:(?:' +
+    '삼성|닷컴|닷넷|香格里拉|餐厅|食品|飞利浦|電訊盈科|集团|通販|购物|谷歌|诺基亚|联通|网络|网站|网店|网址|组织机构|移动|珠宝|点看|游戏|淡马锡|机构|書籍|时尚|新闻|政府|' +
+    '政务|手表|手机|我爱你|慈善|微博|广东|工行|家電|娱乐|天主教|大拿|大众汽车|在线|嘉里大酒店|嘉里|商标|商店|商城|公益|公司|八卦|健康|信息|佛山|企业|中文网|中信|世界|' +
+    'ポイント|ファッション|セール|ストア|コム|グーグル|クラウド|みんな|คอม|संगठन|नेट|कॉम|همراه|موقع|موبايلي|كوم|كاثوليك|عرب|شبكة|' +
+    'بيتك|بازار|العليان|ارامكو|اتصالات|ابوظبي|קום|сайт|рус|орг|онлайн|москва|ком|католик|дети|' +
+    'zuerich|zone|zippo|zip|zero|zara|zappos|yun|youtube|you|yokohama|yoga|yodobashi|yandex|yamaxun|' +
+    'yahoo|yachts|xyz|xxx|xperia|xin|xihuan|xfinity|xerox|xbox|wtf|wtc|wow|world|works|work|woodside|' +
+    'wolterskluwer|wme|winners|wine|windows|win|williamhill|wiki|wien|whoswho|weir|weibo|wedding|wed|' +
+    'website|weber|webcam|weatherchannel|weather|watches|watch|warman|wanggou|wang|walter|walmart|' +
+    'wales|vuelos|voyage|voto|voting|vote|volvo|volkswagen|vodka|vlaanderen|vivo|viva|vistaprint|' +
+    'vista|vision|visa|virgin|vip|vin|villas|viking|vig|video|viajes|vet|versicherung|' +
+    'vermögensberatung|vermögensberater|verisign|ventures|vegas|vanguard|vana|vacations|ups|uol|uno|' +
+    'university|unicom|uconnect|ubs|ubank|tvs|tushu|tunes|tui|tube|trv|trust|travelersinsurance|' +
+    'travelers|travelchannel|travel|training|trading|trade|toys|toyota|town|tours|total|toshiba|' +
+    'toray|top|tools|tokyo|today|tmall|tkmaxx|tjx|tjmaxx|tirol|tires|tips|tiffany|tienda|tickets|' +
+    'tiaa|theatre|theater|thd|teva|tennis|temasek|telefonica|telecity|tel|technology|tech|team|tdk|' +
+    'tci|taxi|tax|tattoo|tatar|tatamotors|target|taobao|talk|taipei|tab|systems|symantec|sydney|' +
+    'swiss|swiftcover|swatch|suzuki|surgery|surf|support|supply|supplies|sucks|style|study|studio|' +
+    'stream|store|storage|stockholm|stcgroup|stc|statoil|statefarm|statebank|starhub|star|staples|' +
+    'stada|srt|srl|spreadbetting|spot|spiegel|space|soy|sony|song|solutions|solar|sohu|software|' +
+    'softbank|social|soccer|sncf|smile|smart|sling|skype|sky|skin|ski|site|singles|sina|silk|shriram|' +
+    'showtime|show|shouji|shopping|shop|shoes|shiksha|shia|shell|shaw|sharp|shangrila|sfr|sexy|sex|' +
+    'sew|seven|ses|services|sener|select|seek|security|secure|seat|search|scot|scor|scjohnson|' +
+    'science|schwarz|schule|school|scholarships|schmidt|schaeffler|scb|sca|sbs|sbi|saxo|save|sas|' +
+    'sarl|sapo|sap|sanofi|sandvikcoromant|sandvik|samsung|samsclub|salon|sale|sakura|safety|safe|' +
+    'saarland|ryukyu|rwe|run|ruhr|rugby|rsvp|room|rogers|rodeo|rocks|rocher|rmit|rip|rio|ril|' +
+    'rightathome|ricoh|richardli|rich|rexroth|reviews|review|restaurant|rest|republican|report|' +
+    'repair|rentals|rent|ren|reliance|reit|reisen|reise|rehab|redumbrella|redstone|red|recipes|' +
+    'realty|realtor|realestate|read|raid|radio|racing|qvc|quest|quebec|qpon|pwc|pub|prudential|pru|' +
+    'protection|property|properties|promo|progressive|prof|productions|prod|pro|prime|press|praxi|' +
+    'pramerica|post|porn|politie|poker|pohl|pnc|plus|plumbing|playstation|play|place|pizza|pioneer|' +
+    'pink|ping|pin|pid|pictures|pictet|pics|piaget|physio|photos|photography|photo|phone|philips|phd|' +
+    'pharmacy|pfizer|pet|pccw|pay|passagens|party|parts|partners|pars|paris|panerai|panasonic|' +
+    'pamperedchef|page|ovh|ott|otsuka|osaka|origins|orientexpress|organic|org|orange|oracle|open|ooo|' +
+    'onyourside|online|onl|ong|one|omega|ollo|oldnavy|olayangroup|olayan|okinawa|office|off|observer|' +
+    'obi|nyc|ntt|nrw|nra|nowtv|nowruz|now|norton|northwesternmutual|nokia|nissay|nissan|ninja|nikon|' +
+    'nike|nico|nhk|ngo|nfl|nexus|nextdirect|next|news|newholland|new|neustar|network|netflix|netbank|' +
+    'net|nec|nba|navy|natura|nationwide|name|nagoya|nadex|nab|mutuelle|mutual|museum|mtr|mtpc|mtn|' +
+    'msd|movistar|movie|mov|motorcycles|moto|moscow|mortgage|mormon|mopar|montblanc|monster|money|' +
+    'monash|mom|moi|moe|moda|mobily|mobile|mobi|mma|mls|mlb|mitsubishi|mit|mint|mini|mil|microsoft|' +
+    'miami|metlife|merckmsd|meo|menu|men|memorial|meme|melbourne|meet|media|med|mckinsey|mcdonalds|' +
+    'mcd|mba|mattel|maserati|marshalls|marriott|markets|marketing|market|map|mango|management|man|' +
+    'makeup|maison|maif|madrid|macys|luxury|luxe|lupin|lundbeck|ltda|ltd|lplfinancial|lpl|love|lotto|' +
+    'lotte|london|lol|loft|locus|locker|loans|loan|lixil|living|live|lipsy|link|linde|lincoln|limo|' +
+    'limited|lilly|like|lighting|lifestyle|lifeinsurance|life|lidl|liaison|lgbt|lexus|lego|legal|' +
+    'lefrak|leclerc|lease|lds|lawyer|law|latrobe|latino|lat|lasalle|lanxess|landrover|land|lancome|' +
+    'lancia|lancaster|lamer|lamborghini|ladbrokes|lacaixa|kyoto|kuokgroup|kred|krd|kpn|kpmg|kosher|' +
+    'komatsu|koeln|kiwi|kitchen|kindle|kinder|kim|kia|kfh|kerryproperties|kerrylogistics|kerryhotels|' +
+    'kddi|kaufen|juniper|juegos|jprs|jpmorgan|joy|jot|joburg|jobs|jnj|jmp|jll|jlc|jio|jewelry|jetzt|' +
+    'jeep|jcp|jcb|java|jaguar|iwc|iveco|itv|itau|istanbul|ist|ismaili|iselect|irish|ipiranga|' +
+    'investments|intuit|international|intel|int|insure|insurance|institute|ink|ing|info|infiniti|' +
+    'industries|immobilien|immo|imdb|imamat|ikano|iinet|ifm|ieee|icu|ice|icbc|ibm|hyundai|hyatt|' +
+    'hughes|htc|hsbc|how|house|hotmail|hotels|hoteles|hot|hosting|host|hospital|horse|honeywell|' +
+    'honda|homesense|homes|homegoods|homedepot|holiday|holdings|hockey|hkt|hiv|hitachi|hisamitsu|' +
+    'hiphop|hgtv|hermes|here|helsinki|help|healthcare|health|hdfcbank|hdfc|hbo|haus|hangout|hamburg|' +
+    'hair|guru|guitars|guide|guge|gucci|guardian|group|grocery|gripe|green|gratis|graphics|grainger|' +
+    'gov|got|gop|google|goog|goodyear|goodhands|goo|golf|goldpoint|gold|godaddy|gmx|gmo|gmbh|gmail|' +
+    'globo|global|gle|glass|glade|giving|gives|gifts|gift|ggee|george|genting|gent|gea|gdn|gbiz|' +
+    'garden|gap|games|game|gallup|gallo|gallery|gal|fyi|futbol|furniture|fund|fun|fujixerox|fujitsu|' +
+    'ftr|frontier|frontdoor|frogans|frl|fresenius|free|fox|foundation|forum|forsale|forex|ford|' +
+    'football|foodnetwork|food|foo|fly|flsmidth|flowers|florist|flir|flights|flickr|fitness|fit|' +
+    'fishing|fish|firmdale|firestone|fire|financial|finance|final|film|fido|fidelity|fiat|ferrero|' +
+    'ferrari|feedback|fedex|fast|fashion|farmers|farm|fans|fan|family|faith|fairwinds|fail|fage|' +
+    'extraspace|express|exposed|expert|exchange|everbank|events|eus|eurovision|etisalat|esurance|' +
+    'estate|esq|erni|ericsson|equipment|epson|epost|enterprises|engineering|engineer|energy|emerck|' +
+    'email|education|edu|edeka|eco|eat|earth|dvr|dvag|durban|dupont|duns|dunlop|duck|dubai|dtv|drive|' +
+    'download|dot|doosan|domains|doha|dog|dodge|doctor|docs|dnp|diy|dish|discover|discount|directory|' +
+    'direct|digital|diet|diamonds|dhl|dev|design|desi|dentist|dental|democrat|delta|deloitte|dell|' +
+    'delivery|degree|deals|dealer|deal|dds|dclk|day|datsun|dating|date|data|dance|dad|dabur|cyou|' +
+    'cymru|cuisinella|csc|cruises|cruise|crs|crown|cricket|creditunion|creditcard|credit|courses|' +
+    'coupons|coupon|country|corsica|coop|cool|cookingchannel|cooking|contractors|contact|consulting|' +
+    'construction|condos|comsec|computer|compare|company|community|commbank|comcast|com|cologne|' +
+    'college|coffee|codes|coach|clubmed|club|cloud|clothing|clinique|clinic|click|cleaning|claims|' +
+    'cityeats|city|citic|citi|citadel|cisco|circle|cipriani|church|chrysler|chrome|christmas|chloe|' +
+    'chintai|cheap|chat|chase|channel|chanel|cfd|cfa|cern|ceo|center|ceb|cbs|cbre|cbn|cba|catholic|' +
+    'catering|cat|casino|cash|caseih|case|casa|cartier|cars|careers|career|care|cards|caravan|car|' +
+    'capitalone|capital|capetown|canon|cancerresearch|camp|camera|cam|calvinklein|call|cal|cafe|cab|' +
+    'bzh|buzz|buy|business|builders|build|bugatti|budapest|brussels|brother|broker|broadway|' +
+    'bridgestone|bradesco|box|boutique|bot|boston|bostik|bosch|boots|booking|book|boo|bond|bom|bofa|' +
+    'boehringer|boats|bnpparibas|bnl|bmw|bms|blue|bloomberg|blog|blockbuster|blanco|blackfriday|' +
+    'black|biz|bio|bingo|bing|bike|bid|bible|bharti|bet|bestbuy|best|berlin|bentley|beer|beauty|' +
+    'beats|bcn|bcg|bbva|bbt|bbc|bayern|bauhaus|basketball|baseball|bargains|barefoot|barclays|' +
+    'barclaycard|barcelona|bar|bank|band|bananarepublic|banamex|baidu|baby|azure|axa|aws|avianca|' +
+    'autos|auto|author|auspost|audio|audible|audi|auction|attorney|athleta|associates|asia|asda|arte|' +
+    'art|arpa|army|archi|aramco|arab|aquarelle|apple|app|apartments|aol|anz|anquan|android|analytics|' +
+    'amsterdam|amica|amfam|amex|americanfamily|americanexpress|alstom|alsace|ally|allstate|allfinanz|' +
+    'alipay|alibaba|alfaromeo|akdn|airtel|airforce|airbus|aigo|aig|agency|agakhan|africa|afl|' +
+    'afamilycompany|aetna|aero|aeg|adult|ads|adac|actor|active|aco|accountants|accountant|accenture|' +
+    'academy|abudhabi|abogado|able|abc|abbvie|abbott|abb|abarth|aarp|aaa|onion' +
+  ')(?=[^0-9a-zA-Z@]|$))'));
+  regexen.validCCTLD = regexSupplant(RegExp(
+  '(?:(?:' +
+      '한국|香港|澳門|新加坡|台灣|台湾|中國|中国|გე|ไทย|ලංකා|ഭാരതം|ಭಾರತ|భారత్|சிங்கப்பூர்|இலங்கை|இந்தியா|ଭାରତ|ભારત|ਭਾਰਤ|' +
+      'ভাৰত|ভারত|বাংলা|भारोत|भारतम्|भारत|ڀارت|پاکستان|مليسيا|مصر|قطر|فلسطين|عمان|عراق|سورية|سودان|تونس|' +
+      'بھارت|بارت|ایران|امارات|المغرب|السعودية|الجزائر|الاردن|հայ|қаз|укр|срб|рф|мон|мкд|ею|бел|бг|ελ|' +
+      'zw|zm|za|yt|ye|ws|wf|vu|vn|vi|vg|ve|vc|va|uz|uy|us|um|uk|ug|ua|tz|tw|tv|tt|tr|tp|to|tn|tm|tl|tk|' +
+      'tj|th|tg|tf|td|tc|sz|sy|sx|sv|su|st|ss|sr|so|sn|sm|sl|sk|sj|si|sh|sg|se|sd|sc|sb|sa|rw|ru|rs|ro|' +
+      're|qa|py|pw|pt|ps|pr|pn|pm|pl|pk|ph|pg|pf|pe|pa|om|nz|nu|nr|np|no|nl|ni|ng|nf|ne|nc|na|mz|my|mx|' +
+      'mw|mv|mu|mt|ms|mr|mq|mp|mo|mn|mm|ml|mk|mh|mg|mf|me|md|mc|ma|ly|lv|lu|lt|ls|lr|lk|li|lc|lb|la|kz|' +
+      'ky|kw|kr|kp|kn|km|ki|kh|kg|ke|jp|jo|jm|je|it|is|ir|iq|io|in|im|il|ie|id|hu|ht|hr|hn|hm|hk|gy|gw|' +
+      'gu|gt|gs|gr|gq|gp|gn|gm|gl|gi|gh|gg|gf|ge|gd|gb|ga|fr|fo|fm|fk|fj|fi|eu|et|es|er|eh|eg|ee|ec|dz|' +
+      'do|dm|dk|dj|de|cz|cy|cx|cw|cv|cu|cr|co|cn|cm|cl|ck|ci|ch|cg|cf|cd|cc|ca|bz|by|bw|bv|bt|bs|br|bq|' +
+      'bo|bn|bm|bl|bj|bi|bh|bg|bf|be|bd|bb|ba|az|ax|aw|au|at|as|ar|aq|ao|an|am|al|ai|ag|af|ae|ad|ac' +
+  ')(?=[^0-9a-zA-Z@]|$))'));
+  regexen.validPunycode = /(?:xn--[0-9a-z]+)/;
+  regexen.validSpecialCCTLD = /(?:(?:co|tv)(?=[^0-9a-zA-Z@]|$))/;
+  regexen.validDomain = regexSupplant(/(?:#{validSubdomain}*#{validDomainName}(?:#{validGTLD}|#{validCCTLD}|#{validPunycode}))/);
+  regexen.validPortNumber = /[0-9]+/;
+  regexen.pd = /\u002d\u058a\u05be\u1400\u1806\u2010-\u2015\u2e17\u2e1a\u2e3a\u2e40\u301c\u3030\u30a0\ufe31\ufe58\ufe63\uff0d/;
+  regexen.validGeneralUrlPathChars = regexSupplant(/[^#{spaces_group}\(\)\?]/i);
+  // Allow URL paths to contain up to two nested levels of balanced parens
+  //  1. Used in Wikipedia URLs like /Primer_(film)
+  //  2. Used in IIS sessions like /S(dfd346)/
+  //  3. Used in Rdio URLs like /track/We_Up_(Album_Version_(Edited))/
+  regexen.validUrlBalancedParens = regexSupplant(
+    '\\('                                   +
+      '(?:'                                 +
+        '#{validGeneralUrlPathChars}+'      +
+        '|'                                 +
+        // allow one nested level of balanced parentheses
+        '(?:'                               +
+          '#{validGeneralUrlPathChars}*'    +
+          '\\('                             +
+            '#{validGeneralUrlPathChars}+'  +
+          '\\)'                             +
+          '#{validGeneralUrlPathChars}*'    +
+        ')'                                 +
+      ')'                                   +
+    '\\)'
+  , 'i');
+  // Valid end-of-path chracters (so /foo. does not gobble the period).
+  // 1. Allow =&# for empty URL parameters and other URL-join artifacts
+  regexen.validUrlPathEndingChars = regexSupplant(/[^#{spaces_group}\(\)\?!\*';:=\,\.\$%\[\]#{pd}~&\|@]|(?:#{validUrlBalancedParens})/i);
+  // Allow @ in a url, but only in the middle. Catch things like http://example.com/@user/
+  regexen.validUrlPath = regexSupplant('(?:' +
+    '(?:' +
+      '#{validGeneralUrlPathChars}*' +
+        '(?:#{validUrlBalancedParens}#{validGeneralUrlPathChars}*)*' +
+        '#{validUrlPathEndingChars}'+
+      ')|(?:@#{validGeneralUrlPathChars}+\/)'+
+    ')', 'i');
+  regexen.validUrlQueryChars = /[a-z0-9!?\*'@\(\);:&=\+\$\/%#\[\]\-_\.,~|]/i;
+  regexen.validUrlQueryEndingChars = /[a-z0-9_&=#\/]/i;
+  regexen.validUrl = regexSupplant(
+    '('                                                          + // $1 URL
+      '(https?:\\/\\/)'                                          + // $2 Protocol
+      '(#{validDomain})'                                         + // $3 Domain(s)
+      '(?::(#{validPortNumber}))?'                               + // $4 Port number (optional)
+      '(\\/#{validUrlPath}*)?'                                   + // $5 URL Path
+      '(\\?#{validUrlQueryChars}*#{validUrlQueryEndingChars})?'  + // $6 Query String
+    ')'
+  , 'gi');
+  return regexen.validUrl;
+}());

app/javascript/flavours/glitch/util/uuid.js

@@ -0,0 +1,3 @@
+export default function uuid(a) {
+  return a ? (a^Math.random() * 16 >> a / 4).toString(16) : ([1e7]+-1e3+-4e3+-8e3+-1e11).replace(/[018]/g, uuid);
+};

app/javascript/flavours/glitch/util/web_push_subscription.js

@@ -0,0 +1,105 @@
+import axios from 'axios';
+import { store } from 'flavours/glitch/containers/mastodon';
+import { setBrowserSupport, setSubscription, clearSubscription } from 'flavours/glitch/actions/push_notifications';
+
+// Taken from https://www.npmjs.com/package/web-push
+const urlBase64ToUint8Array = (base64String) => {
+  const padding = '='.repeat((4 - base64String.length % 4) % 4);
+  const base64 = (base64String + padding)
+    .replace(/\-/g, '+')
+    .replace(/_/g, '/');
+
+  const rawData = window.atob(base64);
+  const outputArray = new Uint8Array(rawData.length);
+
+  for (let i = 0; i < rawData.length; ++i) {
+    outputArray[i] = rawData.charCodeAt(i);
+  }
+  return outputArray;
+};
+
+const getApplicationServerKey = () => document.querySelector('[name="applicationServerKey"]').getAttribute('content');
+
+const getRegistration = () => navigator.serviceWorker.ready;
+
+const getPushSubscription = (registration) =>
+  registration.pushManager.getSubscription()
+    .then(subscription => ({ registration, subscription }));
+
+const subscribe = (registration) =>
+  registration.pushManager.subscribe({
+    userVisibleOnly: true,
+    applicationServerKey: urlBase64ToUint8Array(getApplicationServerKey()),
+  });
+
+const unsubscribe = ({ registration, subscription }) =>
+  subscription ? subscription.unsubscribe().then(() => registration) : registration;
+
+const sendSubscriptionToBackend = (subscription) =>
+  axios.post('/api/web/push_subscriptions', {
+    subscription,
+  }).then(response => response.data);
+
+// Last one checks for payload support: https://web-push-book.gauntface.com/chapter-06/01-non-standards-browsers/#no-payload
+const supportsPushNotifications = ('serviceWorker' in navigator && 'PushManager' in window && 'getKey' in PushSubscription.prototype);
+
+export function register () {
+  store.dispatch(setBrowserSupport(supportsPushNotifications));
+
+  if (supportsPushNotifications) {
+    if (!getApplicationServerKey()) {
+      console.error('The VAPID public key is not set. You will not be able to receive Web Push Notifications.');
+      return;
+    }
+
+    getRegistration()
+      .then(getPushSubscription)
+      .then(({ registration, subscription }) => {
+        if (subscription !== null) {
+          // We have a subscription, check if it is still valid
+          const currentServerKey = (new Uint8Array(subscription.options.applicationServerKey)).toString();
+          const subscriptionServerKey = urlBase64ToUint8Array(getApplicationServerKey()).toString();
+          const serverEndpoint = store.getState().getIn(['push_notifications', 'subscription', 'endpoint']);
+
+          // If the VAPID public key did not change and the endpoint corresponds
+          // to the endpoint saved in the backend, the subscription is valid
+          if (subscriptionServerKey === currentServerKey && subscription.endpoint === serverEndpoint) {
+            return subscription;
+          } else {
+            // Something went wrong, try to subscribe again
+            return unsubscribe({ registration, subscription }).then(subscribe).then(sendSubscriptionToBackend);
+          }
+        }
+
+        // No subscription, try to subscribe
+        return subscribe(registration).then(sendSubscriptionToBackend);
+      })
+      .then(subscription => {
+        // If we got a PushSubscription (and not a subscription object from the backend)
+        // it means that the backend subscription is valid (and was set during hydration)
+        if (!(subscription instanceof PushSubscription)) {
+          store.dispatch(setSubscription(subscription));
+        }
+      })
+      .catch(error => {
+        if (error.code === 20 && error.name === 'AbortError') {
+          console.warn('Your browser supports Web Push Notifications, but does not seem to implement the VAPID protocol.');
+        } else if (error.code === 5 && error.name === 'InvalidCharacterError') {
+          console.error('The VAPID public key seems to be invalid:', getApplicationServerKey());
+        }
+
+        // Clear alerts and hide UI settings
+        store.dispatch(clearSubscription());
+
+        try {
+          getRegistration()
+            .then(getPushSubscription)
+            .then(unsubscribe);
+        } catch (e) {
+
+        }
+      });
+  } else {
+    console.warn('Your browser does not support Web Push Notifications.');
+  }
+}