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.editorconfig

@@ -15,5 +15,5 @@ indent_size = 2
 [*.{diff,md}]
 trim_trailing_whitespace = false
 
-[*.{php,xml}]
+[*.{php,xml,json}]
 indent_size = 4

.github/workflows/build.yml

@@ -7,10 +7,24 @@ on:
 
 jobs:
   build:
+    name: JS / Build
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@master
-      - uses: flarum/action-build@master
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Restore npm cache
+        uses: actions/cache@v2
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-${{ hashFiles('js/package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-
+
+      # Our action will install npm, cd into `./js`, run `npm run build`,
+      # then commit and upload any changes
+      - name: Build production JS
+        uses: flarum/action-build@master
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,76 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+# Run on:
+# - pushes to master, or
+# - PRs with a base of `master`
+# - which do not **only** consist of changes to .md or .less files
+on:
+  push:
+    branches: [ master ]
+    paths-ignore:
+      - '**/*.md'
+      - '**/*.less'
+  pull_request:
+    branches: [ master ]
+    paths-ignore:
+      - '**/*.md'
+      - '**/*.less'
+  schedule:
+    - cron: '0 0 * * 1,3,5'
+
+jobs:
+  analyze:
+    name: Analyze / ${{ matrix.language }}
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'javascript' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      # Initializes the CodeQL tools for scanning.
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v1
+        with:
+          languages: ${{ matrix.language }}
+          # If you wish to specify custom queries, you can do so here or in a config file.
+          # By default, queries listed here will override any specified in a config file.
+          # Prefix the list here with "+" to use these queries and those in the config file.
+          # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+      # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+      # If this step fails, then you should remove it and run the build manually (see below)
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v1
+
+      # ℹ️ Command-line programs to run using the OS shell.
+      # 📚 https://git.io/JvXDl
+
+      # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+      #    and modify them (or add more) to build your code if your project
+      #    uses a compiled language
+
+      #- run: |
+      #   make bootstrap
+      #   make release
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v1

.github/workflows/lint.yml

@@ -1,6 +1,7 @@
 name: Lint
 
 on:
+  workflow_dispatch:
   push:
     paths:
       - 'js/src/**'
@@ -10,22 +11,18 @@ on:
 
 jobs:
   prettier:
+    name: JS / Prettier
     runs-on: ubuntu-latest
 
-    name: JS / Prettier
-
     steps:
-      - uses: actions/checkout@master
+      - name: Check out code
+        uses: actions/checkout@v2
 
-      - name: Setup Node.js
-        uses: actions/setup-node@v1
+      - name: Set up Node
+        uses: actions/setup-node@v2
         with:
-          node-version: "12"
+          node-version: "14"
 
-      - name: Install JS dependencies
-        run: npm ci
-        working-directory: ./js
-
-      - name: Check JS code for formatting
-        run: node_modules/.bin/prettier --check src
+      - name: Check JS formatting
+        run: npx prettier --check src
         working-directory: ./js

.github/workflows/pr_size_change.yml

@@ -0,0 +1,45 @@
+name: Bundle size checker
+
+on:
+  workflow_dispatch:
+
+  push:
+    paths:
+      - "js/**"
+  pull_request:
+    paths:
+      - "js/**"
+
+jobs:
+  bundlewatch:
+    runs-on: ubuntu-latest
+
+    name: Bundlewatch
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2
+        with:
+          node-version: "14"
+
+      - name: Use npm v7
+        run: sudo npm install -g npm@7.x.x
+
+      - name: Install JS dependencies
+        # We need to use `npm install` here. If we don't, the workflow will fail.
+        run: npm install
+        working-directory: ./js
+
+      - name: Build production assets
+        run: npm run build
+        working-directory: ./js
+
+      - name: Check bundle size change
+        run: node_modules/.bin/bundlewatch --config .bundlewatch.config.json
+        working-directory: ./js
+        env:
+          BUNDLEWATCH_GITHUB_TOKEN: ${{ secrets.BUNDLEWATCH_GITHUB_TOKEN }}
+          CI_COMMIT_SHA: ${{ github.event.pull_request.head.sha }}

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        php: [7.2, 7.3, 7.4]
+        php: [7.3, 7.4, '8.0']
         service: ['mysql:5.7', mariadb]
         prefix: ['', flarum_]
 
@@ -21,16 +21,16 @@ jobs:
             prefixStr: (prefix)
 
         exclude:
-          - php: 7.2
+          - php: 7.3
             service: 'mysql:5.7'
             prefix: flarum_
-          - php: 7.2
+          - php: 7.3
             service: mariadb
             prefix: flarum_
-          - php: 7.3
+          - php: 8.0
             service: 'mysql:5.7'
             prefix: flarum_
-          - php: 7.3
+          - php: 8.0
             service: mariadb
             prefix: flarum_
 
@@ -43,15 +43,25 @@ jobs:
     name: 'PHP ${{ matrix.php }} / ${{ matrix.db }} ${{ matrix.prefixStr }}'
 
     steps:
-      - uses: actions/checkout@master
+      - name: Check out code
+        uses: actions/checkout@v2
 
-      - name: Select PHP version
-        run: sudo update-alternatives --set php $(which php${{ matrix.php }})
+      - name: Setup PHP
+        uses: shivammathur/setup-php@0b9d33cd0782337377999751fc10ea079fdd7104 # pin@v2
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: xdebug
+          extensions: curl, dom, gd, json, mbstring, openssl, pdo_mysql, tokenizer, zip
+          tools: phpunit, composer:v2
 
+      # The authentication alter is necessary because newer mysql versions use the `caching_sha2_password` driver,
+      # which isn't supported prior to PHP7.4
+      # When we drop support for PHP7.3, we should remove this from the setup.
       - name: Create MySQL Database
         run: |
           sudo systemctl start mysql
           mysql -uroot -proot -e 'CREATE DATABASE flarum_test;' --port 13306
+          mysql -uroot -proot -e "ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';" --port 13306
 
       - name: Install Composer dependencies
         run: composer install
@@ -65,3 +75,5 @@ jobs:
 
       - name: Run Composer tests
         run: composer test
+        env:
+          COMPOSER_PROCESS_TIMEOUT: 600

.gitignore

@@ -4,6 +4,8 @@ composer.phar
 node_modules
 .DS_Store
 Thumbs.db
+tests/.phpunit.result.cache
 /tests/integration/tmp
 .vagrant
 .idea/*
+.vscode

.styleci.yml

@@ -12,7 +12,3 @@ disabled:
   - phpdoc_order
   - phpdoc_separation
   - phpdoc_types
-
-finder:
-  exclude:
-    - "stubs"

CHANGELOG.md

@@ -1,5 +1,164 @@
 # Changelog
 
+## [0.1.0-beta.16](https://github.com/flarum/core/compare/v0.1.0-beta.15...v0.1.0-beta.16)
+
+### Added
+- Allow event subscribers (https://github.com/flarum/core/pull/2535)
+- Allow Settings extender to have a default value (https://github.com/flarum/core/pull/2495)
+- Allow hooking into the sending of notifications before being send (https://github.com/flarum/core/pull/2533)
+- PHP 8 support (https://github.com/flarum/core/pull/2507)
+- Search extender (https://github.com/flarum/core/pull/2483)
+- User badges to post preview (https://github.com/flarum/core/pull/2555)
+- Optional extension dependencies allow a booting order (https://github.com/flarum/core/pull/2579)
+- Auth extender (https://github.com/flarum/core/pull/2176)
+- `X-Powered-By` header added to allow indexers easier data aggregation of Flarum adoption (https://github.com/flarum/core/pull/2618)
+
+### Changed
+- Run integration tests in transaction (https://github.com/flarum/core/pull/2304)
+- Allow policies to return a boolean for simplified allow/deny (https://github.com/flarum/core/pull/2534)
+- Converted highlight helper to typescript (https://github.com/flarum/core/pull/2532)
+- Add accessibility attributes to Mark as Read button (https://github.com/flarum/core/pull/2564)
+- Dismiss errors on change email modal upon a new request ([00913d5](https://github.com/flarum/core/commit/00913d5b0be2172cfce1f16aaf64a24f3d2e6d4b))
+- Disabled extensions now are marked with a red circle instead of a red dot (https://github.com/flarum/core/pull/2562)
+- Extension dependency errors now show the extension title instead of the ID (https://github.com/flarum/core/pull/2563)
+- Change `mutate` method on ApiSerializer extender to `attributes` (https://github.com/flarum/core/pull/2578)
+- Moved locale files to the core from the language pack (https://github.com/flarum/core/pull/2408)
+- AdminPage extensibility and generic improvements (https://github.com/flarum/core/pull/2593)
+- Remove entry of authors, link to https://flarum.org/team (https://github.com/flarum/core/pull/2625)
+- Search and filtering are split (https://github.com/flarum/core/pull/2454)
+- Move IP identification into a middleware (https://github.com/flarum/core/pull/2624)
+- Editor Driver abstraction introduced (https://github.com/flarum/core/pull/2594)
+- Allow overriding routes (https://github.com/flarum/core/pull/2577)
+- Split user edit permissions into permissions for editing of user credentials, username, groups and suspending (https://github.com/flarum/core/pull/2620)
+- Reduced number of admin extension categories (https://github.com/flarum/core/pull/2604)
+- Move search related classes to a dedicated Query namespace (https://github.com/flarum/core/pull/2645)
+- Rewrite common helpers into typescript (https://github.com/flarum/core/pull/2541)
+- `TextEditor` is moved to the common namespace for use in the admin frontend (https://github.com/flarum/core/pull/2649)
+- Update Laravel/Illuminate components to 8 (https://github.com/flarum/core/pull/2576)
+- Eager load relations in discussion listing to improve performance (https://github.com/flarum/core/pull/2639)
+- Adopt flarum/testing package (https://github.com/flarum/core/pull/2545)
+- Replace `user` gambit with `author` gambit ([612a57c](https://github.com/flarum/core/commit/612a57c4664415a3ea120103483645c32acc6f12))
+- Posts page of on user profile loads posts using username instead of id ([30017ee](https://github.com/flarum/core/commit/30017eef09ae9e78640c4e2cacd4909fffa8d775))
+
+### Fixed
+- Transform css breaks iOS scroll functionality (https://github.com/flarum/core/pull/2527)
+- Composer header is hidden on mobile devices (https://github.com/flarum/core/pull/2279)
+- Cannot delete a post or discussion of a deleted user (https://github.com/flarum/core/pull/2521)
+- DiscussionListPane jumps around not keeping the scroll position (https://github.com/flarum/core/pull/2402)
+- Infinite scroll on notifications dropdown broken (https://github.com/flarum/core/pull/2524)
+- The show language selector switch remains toggled on ([9347b12](https://github.com/flarum/core/commit/9347b12b47bf4ab97ffb7ca92673604b237c1012))
+- Model Visibility extender throws exception on extensions that aren't installed or enabled (https://github.com/flarum/core/pull/2580)
+- Extensions are marked as enabled when enabling fails to unmet extension dependencies (https://github.com/flarum/core/pull/2558)
+- Routes to admin extension pages without a valid ID break the admin page (https://github.com/flarum/core/pull/2584)
+- Disabled fieldset use an incorrect CSS property `disallowed` (https://github.com/flarum/core/pull/2585)
+- Scrolling to a post that is already loaded the Load More button shows and does not trigger (https://github.com/flarum/core/pull/2388)
+- Opening discussions on some mobile devices require a double tap (https://github.com/flarum/core/pull/2607)
+- iOS devices show erratic behavior in the post stream while updating (https://github.com/flarum/core/pull/2548)
+- Small mobile screens partially hides the composer when the keyboard is open (https://github.com/flarum/core/pull/2631)
+- Clearing cache does not clear the template cache in storage/views (https://github.com/flarum/core/pull/2648)
+- Boot errors show critical information (https://github.com/flarum/core/pull/2633)
+- List user endpoint discloses last online even if user choose against it (https://github.com/flarum/core/pull/2634)
+- Group gambit disclosed hidden groups (https://github.com/flarum/core/pull/2657)
+- Search results on small windows not fully visible (https://github.com/flarum/core/pull/2650)
+- Composer goes off screen on Safari when starting to type (https://github.com/flarum/core/pull/2660)
+- A search that has no results shows the search results dropdown ([b88a7cb](https://github.com/flarum/core/commit/b88a7cb33b56e318f11670e9e2d563aef94db039))
+- The composer modal moves around when typing on Safari ([a64c398](https://github.com/flarum/core/commit/a64c39835aba43e831209609f4a9638ae589aa41))
+
+### Removed
+- Deprecated CSRF wildcard path match
+- Deprecated policy and visibility scoping events
+- Deprecated post types event
+- Deprecated validation events
+- Deprecated notification events
+- Deprecated floodgate
+- Deprecated user preferences event
+- Deprecated formatting events
+- Deprecated api events
+- Deprecated bootstrap.php support
+- PHP 7.2 support (https://github.com/flarum/core/pull/2507)
+- Bidi attribute in the rendered HTML (https://github.com/flarum/core/pull/2602)
+- `AccessToken::find`, use `AccessToken::findValid` instead (https://github.com/flarum/core/pull/2651)
+
+### Deprecated
+- `GetModelIsPrivate` event (https://github.com/flarum/core/pull/2587)
+- `CheckingPassword` event (https://github.com/flarum/core/pull/2176)
+- `event()` helper (https://github.com/flarum/core/pull/2608)
+- `AccessToken::generate` argument `$lifetime` (https://github.com/flarum/core/pull/2651)
+- `Rememberer::remember` argument `$token` should receive an instance of `RememberAccessToken` with `AccessToken` being deprecated (https://github.com/flarum/core/pull/2651)
+- `Rememberer::rememberUser` (https://github.com/flarum/core/pull/2651)
+- `SessionAuthenticator::logIn` argument `$userId`, should be replaced with `AccessToken` (https://github.com/flarum/core/pull/2651)
+- `TextEditor` has been moved to `common` (https://github.com/flarum/core/pull/2649) 
+- `UserFilter` ([91e8b56](https://github.com/flarum/core/commit/91e8b569618957c86757ef89bac666e9102db5ae))
+
+
+## [0.1.0-beta.15](https://github.com/flarum/core/compare/v0.1.0-beta.14.1...v0.1.0-beta.15)
+
+### Added
+
+- Slug drivers support (https://github.com/flarum/core/pull/2456).
+- Notification type extender (https://github.com/flarum/core/pull/2424).
+- Validation extender (https://github.com/flarum/core/pull/2102).
+- Post extender (https://github.com/flarum/core/pull/2101).
+- Notification channel extender (https://github.com/flarum/core/pull/2432).
+- Service provider extender (https://github.com/flarum/core/pull/2437).
+- API serializer extender (https://github.com/flarum/core/pull/2438).
+- User preferences extender (https://github.com/flarum/core/pull/2463).
+- Settings extender (https://github.com/flarum/core/pull/2452).
+- ApiController extender (https://github.com/flarum/core/pull/2451).
+- Model visibility extender (https://github.com/flarum/core/pull/2460).
+- Policy extender (https://github.com/flarum/core/pull/2461).
+
+### Changed
+
+- Time helpers converted to Typescript (https://github.com/flarum/core/pull/2391).
+- Improved the formatter extender (https://github.com/flarum/core/pull/2098).
+- Improve wording on installer when facing file permission issues (https://github.com/flarum/core/pull/2435).
+- Background color of checkbox toggles improved for better usability (https://github.com/flarum/core/pull/2443).
+- Route resolving refactored (https://github.com/flarum/core/pull/2425).
+- Administration panel UX refactored (https://github.com/flarum/core/pull/2409).
+- Floodgate moved to middleware and extender added (https://github.com/flarum/core/pull/2170).
+- DRY up image uploading logic (https://github.com/flarum/core/pull/2477).
+- Process isolation on testing (https://github.com/flarum/core/commit/984f751c718c89501cc09857bc271efa2c7eea8c).
+- Forum and admin javascript exports namespaced (https://github.com/flarum/core/pull/2488).
+
+### Fixed
+
+- Web updater does not take into account subfolder installations (https://github.com/flarum/core/pull/2426).
+- Callables handling in extenders failed (https://github.com/flarum/core/pull/2423).
+- Scrolling on mobile from PostSteam changes didn't work correctly (https://github.com/flarum/core/pull/2385).
+- Side pane covers part of the discussion page due to `app.discussions` being empty (https://github.com/flarum/core/commit/102e76b084bf47fdfb4c73f95e1fbb322537f7aa).
+- Change email modal keeps showing the previous error message even on success (https://github.com/flarum/core/pull/2467).
+- Comment count not updated when discussions are deleted (https://github.com/flarum/core/pull/2472).
+- `goToIndex` in PostStream does not trigger an xhr to retrieve new data (https://github.com/flarum/core/commit/09e2736cbcc267594b660beabbd001d9030f9880).
+- On refresh the post number is reduced by one (https://github.com/flarum/core/pull/2476).
+- Queue worker would instantiate a new Queue factory, not the bound one (https://github.com/flarum/core/pull/2481).
+- Header accidentally has a border bottom (https://github.com/flarum/core/pull/2489).
+- Namespace mentioned in docblock is incorrect (https://github.com/flarum/core/pull/2494).
+- Scrolling inside longer discussions (especially Firefox) skips posts (https://github.com/flarum/core/commit/210a6b3e253d7917bd1eacd3ed8d2f95073ae99d).
+- Uploading avatars that are jpg/jpeg fails with a validation error (https://github.com/flarum/core/pull/2497).
+
+### Removed
+
+- MomentJS alias (https://github.com/flarum/core/pull/2428).
+- Deprecated user events `GetDisplayName` and `PrepareUserGroups` (https://github.com/flarum/core/pull/2428).
+- AssertPermissionTrait (https://github.com/flarum/core/pull/2428).
+- Path related helpers and methods in Application (https://github.com/flarum/core/pull/2428).
+- Backward compatibility layers from the frontend rewrite (https://github.com/flarum/core/pull/2428).
+
+### Deprecated
+
+- `CheckingForFlooding` (https://github.com/flarum/core/commit/8e25bcb68f86cc992c46dfa70368419fe9f936ac).
+
+## [0.1.0-beta.14.1](https://github.com/flarum/core/compare/v0.1.0-beta.14...v0.1.0-beta.14.1)
+
+### Fixed
+
+- SuperTextarea component is not exported.
+- Symfony dependencies do not match those depended on by Laravel (https://github.com/flarum/core/pull/2407).
+- Scripts from textformatter aren't executed (https://github.com/flarum/core/pull/2415)
+- Sub path installations have no page title.
+- Losing focus of Composer area when coming from fullscreen.
+
 ## [0.1.0-beta.14](https://github.com/flarum/core/compare/v0.1.0-beta.13...v0.1.0-beta.14)
 
 ### Added
@@ -142,7 +301,7 @@
 - SES mail support (#2011)
 - Backward compatibility layer for `Flarum\Mail\DriverInterface`, new methods from beta.12 are now required
 - `Flarum\Util\Str` helper class
-- `Flarum\Event\ConfigureMiddleware` event 
+- `Flarum\Event\ConfigureMiddleware` event
 
 ### Deprecated
 - `Flarum\Event\AbstractConfigureRoutes` event class

composer.json

@@ -1,36 +1,17 @@
 {
     "name": "flarum/core",
     "description": "Delightfully simple forum software.",
-    "keywords": ["forum", "discussion"],
+    "keywords": [
+        "forum",
+        "discussion"
+    ],
     "homepage": "https://flarum.org/",
     "license": "MIT",
     "authors": [
         {
-            "name": "Franz Liedke",
-            "email": "franz@develophp.org"
-        },
-        {
-            "name": "Daniël Klabbers",
-            "email": "daniel@klabbers.email",
-            "homepage": "https://luceos.com"
-        },
-        {
-            "name": "David Sevilla Martin",
-            "email": "me+flarum@datitisev.me",
-            "homepage": "https://datitisev.me"
-        },
-        {
-            "name": "Clark Winkelmann",
-            "email": "clark.winkelmann@gmail.com",
-            "homepage": "https://clarkwinkelmann.com"
-        },
-        {
-            "name": "Matthew Kilgore",
-            "email": "matthew@kilgore.dev"
-        },
-        {
-          "name": "Alexander (Sasha) Skvortsov",
-          "email": "askvortsov@flarum.org"
+            "name": "Flarum",
+            "email": "info@flarum.org",
+            "homepage": "https://flarum.org/team"
         }
     ],
     "support": {
@@ -39,36 +20,38 @@
         "docs": "https://flarum.org/docs/"
     },
     "require": {
-        "php": ">=7.2",
+        "php": ">=7.3",
         "axy/sourcemap": "^0.1.4",
         "components/font-awesome": "^5.14.0",
-        "dflydev/fig-cookies": "^2.0.1",
+        "dflydev/fig-cookies": "^3.0.0",
         "doctrine/dbal": "^2.7",
-        "franzl/whoops-middleware": "^0.4.0",
-        "illuminate/bus": "^6.0",
-        "illuminate/cache": "^6.0",
-        "illuminate/config": "^6.0",
-        "illuminate/container": "^6.0",
-        "illuminate/contracts": "^6.0",
-        "illuminate/database": "^6.0",
-        "illuminate/events": "^6.0",
-        "illuminate/filesystem": "^6.0",
-        "illuminate/hashing": "^6.0",
-        "illuminate/mail": "^6.0",
-        "illuminate/queue": "^6.0",
-        "illuminate/session": "^6.0",
-        "illuminate/support": "^6.0",
-        "illuminate/validation": "^6.0",
-        "illuminate/view": "^6.0",
+        "dragonmantank/cron-expression": "^3.1.0",
+        "franzl/whoops-middleware": "^2.0.0",
+        "illuminate/bus": "^8.0",
+        "illuminate/cache": "^8.0",
+        "illuminate/config": "^8.0",
+        "illuminate/console": "^8.0",
+        "illuminate/container": "^8.0",
+        "illuminate/contracts": "^8.0",
+        "illuminate/database": "^8.0",
+        "illuminate/events": "^8.0",
+        "illuminate/filesystem": "^8.0",
+        "illuminate/hashing": "^8.0",
+        "illuminate/mail": "^8.0",
+        "illuminate/queue": "^8.0",
+        "illuminate/session": "^8.0",
+        "illuminate/support": "^8.0",
+        "illuminate/validation": "^8.0",
+        "illuminate/view": "^8.0",
         "intervention/image": "^2.5.0",
-        "laminas/laminas-diactoros": "^1.8.4",
-        "laminas/laminas-httphandlerrunner": "^1.0",
-        "laminas/laminas-stratigility": "^3.0",
+        "laminas/laminas-diactoros": "^2.4.1",
+        "laminas/laminas-httphandlerrunner": "^1.2.0",
+        "laminas/laminas-stratigility": "^3.2.2",
         "league/flysystem": "^1.0.11",
         "matthiasmullie/minify": "^1.3",
-        "middlewares/base-path": "^1.1",
-        "middlewares/base-path-router": "^0.2.1",
-        "middlewares/request-handler": "^1.2",
+        "middlewares/base-path": "^2.0.1",
+        "middlewares/base-path-router": "^2.0.1",
+        "middlewares/request-handler": "^2.0.1",
         "monolog/monolog": "^1.16.0",
         "nesbot/carbon": "^2.0",
         "nikic/fast-route": "^0.6",
@@ -76,17 +59,17 @@
         "psr/http-server-handler": "^1.0",
         "psr/http-server-middleware": "^1.0",
         "s9e/text-formatter": "^2.3.6",
-        "symfony/config": "^4.3.4",
-        "symfony/console": "^4.3.4",
-        "symfony/event-dispatcher": "^4.3.4",
-        "symfony/translation": "^4.3.4",
-        "symfony/yaml": "^4.3.4",
+        "symfony/config": "^5.2.2",
+        "symfony/console": "^5.2.2",
+        "symfony/event-dispatcher": "^5.2.2",
+        "symfony/mime": "^5.2.0",
+        "symfony/translation": "^5.1.5",
+        "symfony/yaml": "^5.2.2",
         "tobscure/json-api": "^0.3.0",
         "wikimedia/less.php": "^3.0"
     },
     "require-dev": {
-        "mockery/mockery": "^1.0",
-        "phpunit/phpunit": "^7.0"
+        "flarum/testing": "^0.1.0-beta.16"
     },
     "autoload": {
         "psr-4": {

js/.bundlewatch.config.json

@@ -0,0 +1,8 @@
+{
+    "files": [
+        {
+            "path": "./dist/*.js"
+        }
+    ],
+    "defaultCompression": "gzip"
+}

js/package.json

@@ -2,32 +2,40 @@
   "private": true,
   "name": "@flarum/core",
   "dependencies": {
-    "@babel/preset-typescript": "^7.10.1",
-    "@types/mithril": "^2.0.3",
     "bootstrap": "^3.4.1",
-    "classnames": "^2.2.5",
+    "clsx": "^1.1.1",
     "color-thief-browser": "^2.0.2",
-    "dayjs": "^1.8.28",
-    "expose-loader": "^0.7.5",
-    "flarum-webpack-config": "0.1.0-beta.10",
-    "jquery": "^3.5.1",
+    "dayjs": "^1.10.4",
+    "expose-loader": "^1.0.3",
+    "jquery": "^3.6.0",
     "jquery.hotkeys": "^0.1.0",
-    "lodash-es": "^4.17.14",
-    "m.attrs.bidi": "github:tobscure/m.attrs.bidi",
+    "lodash-es": "^4.17.21",
     "mithril": "^2.0.4",
     "punycode": "^2.1.1",
     "spin.js": "^3.1.0",
-    "webpack": "^4.43.0",
-    "webpack-cli": "^3.3.11",
-    "webpack-merge": "^4.1.4"
+    "textarea-caret": "^3.1.0"
   },
   "devDependencies": {
-    "husky": "^4.2.5",
-    "prettier": "2.0.2"
+    "@babel/preset-typescript": "^7.13.0",
+    "@types/jquery": "^3.5.5",
+    "@types/lodash-es": "^4.17.4",
+    "@types/mithril": "^2.0.7",
+    "@types/punycode": "^2.1.0",
+    "@types/textarea-caret": "^3.0.0",
+    "bundlewatch": "^0.3.2",
+    "cross-env": "^7.0.3",
+    "flarum-webpack-config": "0.1.0-beta.10",
+    "husky": "^4.3.8",
+    "prettier": "^2.2.1",
+    "webpack": "^4.46.0",
+    "webpack-bundle-analyzer": "^4.4.0",
+    "webpack-cli": "^3.3.12",
+    "webpack-merge": "^4.2.2"
   },
   "scripts": {
     "dev": "webpack --mode development --watch",
     "build": "webpack --mode production",
+    "analyze": "cross-env ANALYZER=true npm run build",
     "format": "prettier --write src",
     "format-check": "prettier --check src"
   },

js/shims.d.ts

@@ -19,9 +19,21 @@ import Application from './src/common/Application';
  * to (and should not) bundle these themselves.
  */
 declare global {
-  const $: typeof _$;
+  // $ is already defined by `@types/jquery`
   const m: Mithril.Static;
   const dayjs: typeof _dayjs;
+
+  // Extend JQuery with our custom functions, defined with $.fn
+  interface JQuery {
+    /**
+     * Creates a tooltip on a jQuery element reference.
+     *
+     * Optionally accepts placement and delay options.
+     *
+     * Returns the same reference to allow for method chaining.
+     */
+    tooltip: (tooltipOptions?: { placement?: 'top' | 'bottom' | 'left' | 'right'; delay?: number }) => JQuery;
+  }
 }
 
 /**

js/src/admin/AdminApplication.js

@@ -4,9 +4,16 @@ import routes from './routes';
 import Application from '../common/Application';
 import Navigation from '../common/components/Navigation';
 import AdminNav from './components/AdminNav';
+import ExtensionData from './utils/ExtensionData';
 
 export default class AdminApplication extends Application {
-  extensionSettings = {};
+  extensionData = new ExtensionData();
+
+  extensionCategories = {
+    feature: 30,
+    theme: 20,
+    language: 10,
+  };
 
   history = {
     canGoBack: () => true,
@@ -34,19 +41,17 @@ export default class AdminApplication extends Application {
     m.route.prefix = '#';
     super.mount();
 
-    m.mount(document.getElementById('app-navigation'), { view: () => Navigation.component({ className: 'App-backControl', drawer: true }) });
+    m.mount(document.getElementById('app-navigation'), {
+      view: () =>
+        Navigation.component({
+          className: 'App-backControl',
+          drawer: true,
+        }),
+    });
     m.mount(document.getElementById('header-navigation'), Navigation);
     m.mount(document.getElementById('header-primary'), HeaderPrimary);
     m.mount(document.getElementById('header-secondary'), HeaderSecondary);
     m.mount(document.getElementById('admin-navigation'), AdminNav);
-
-    // If an extension has just been enabled, then we will run its settings
-    // callback.
-    const enabled = localStorage.getItem('enabledExtension');
-    if (enabled && this.extensionSettings[enabled]) {
-      this.extensionSettings[enabled]();
-      localStorage.removeItem('enabledExtension');
-    }
   }
 
   getRequiredPermissions(permission) {

js/src/admin/app.ts

@@ -0,0 +1,8 @@
+import Admin from './AdminApplication';
+
+const app = new Admin();
+
+// @ts-ignore
+window.app = app;
+
+export default app;

js/src/admin/compat.js

@@ -1,19 +1,24 @@
 import compat from '../common/compat';
 
 import saveSettings from './utils/saveSettings';
+import ExtensionData from './utils/ExtensionData';
+import isExtensionEnabled from './utils/isExtensionEnabled';
+import getCategorizedExtensions from './utils/getCategorizedExtensions';
 import SettingDropdown from './components/SettingDropdown';
 import EditCustomFooterModal from './components/EditCustomFooterModal';
 import SessionDropdown from './components/SessionDropdown';
 import HeaderPrimary from './components/HeaderPrimary';
+import AdminPage from './components/AdminPage';
 import AppearancePage from './components/AppearancePage';
 import StatusWidget from './components/StatusWidget';
+import ExtensionsWidget from './components/ExtensionsWidget';
 import HeaderSecondary from './components/HeaderSecondary';
 import SettingsModal from './components/SettingsModal';
 import DashboardWidget from './components/DashboardWidget';
-import AddExtensionModal from './components/AddExtensionModal';
-import ExtensionsPage from './components/ExtensionsPage';
-import AdminLinkButton from './components/AdminLinkButton';
+import ExtensionPage from './components/ExtensionPage';
+import ExtensionLinkButton from './components/ExtensionLinkButton';
 import PermissionGrid from './components/PermissionGrid';
+import ExtensionPermissionGrid from './components/ExtensionPermissionGrid';
 import MailPage from './components/MailPage';
 import UploadImageButton from './components/UploadImageButton';
 import LoadingModal from './components/LoadingModal';
@@ -23,6 +28,7 @@ import EditCustomHeaderModal from './components/EditCustomHeaderModal';
 import PermissionsPage from './components/PermissionsPage';
 import PermissionDropdown from './components/PermissionDropdown';
 import AdminNav from './components/AdminNav';
+import AdminHeader from './components/AdminHeader';
 import EditCustomCssModal from './components/EditCustomCssModal';
 import EditGroupModal from './components/EditGroupModal';
 import routes from './routes';
@@ -30,19 +36,24 @@ import AdminApplication from './AdminApplication';
 
 export default Object.assign(compat, {
   'utils/saveSettings': saveSettings,
+  'utils/ExtensionData': ExtensionData,
+  'utils/isExtensionEnabled': isExtensionEnabled,
+  'utils/getCategorizedExtensions': getCategorizedExtensions,
   'components/SettingDropdown': SettingDropdown,
   'components/EditCustomFooterModal': EditCustomFooterModal,
   'components/SessionDropdown': SessionDropdown,
   'components/HeaderPrimary': HeaderPrimary,
+  'components/AdminPage': AdminPage,
   'components/AppearancePage': AppearancePage,
   'components/StatusWidget': StatusWidget,
+  'components/ExtensionsWidget': ExtensionsWidget,
   'components/HeaderSecondary': HeaderSecondary,
   'components/SettingsModal': SettingsModal,
   'components/DashboardWidget': DashboardWidget,
-  'components/AddExtensionModal': AddExtensionModal,
-  'components/ExtensionsPage': ExtensionsPage,
-  'components/AdminLinkButton': AdminLinkButton,
+  'components/ExtensionPage': ExtensionPage,
+  'components/ExtensionLinkButton': ExtensionLinkButton,
   'components/PermissionGrid': PermissionGrid,
+  'components/ExtensionPermissionGrid': ExtensionPermissionGrid,
   'components/MailPage': MailPage,
   'components/UploadImageButton': UploadImageButton,
   'components/LoadingModal': LoadingModal,
@@ -52,6 +63,7 @@ export default Object.assign(compat, {
   'components/PermissionsPage': PermissionsPage,
   'components/PermissionDropdown': PermissionDropdown,
   'components/AdminNav': AdminNav,
+  'components/AdminHeader': AdminHeader,
   'components/EditCustomCssModal': EditCustomCssModal,
   'components/EditGroupModal': EditGroupModal,
   routes: routes,

js/src/admin/components/AddExtensionModal.js

@@ -1,32 +0,0 @@
-/*
- * This file is part of Flarum.
- *
- * (c) Toby Zerner <toby.zerner@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-import Modal from '../../common/components/Modal';
-
-export default class AddExtensionModal extends Modal {
-  className() {
-    return 'AddExtensionModal Modal--small';
-  }
-
-  title() {
-    return app.translator.trans('core.admin.add_extension.title');
-  }
-
-  content() {
-    return (
-      <div className="Modal-body">
-        <p>{app.translator.trans('core.admin.add_extension.temporary_text')}</p>
-        <p>
-          {app.translator.trans('core.admin.add_extension.install_text', { a: <a href="https://discuss.flarum.org/t/extensions" target="_blank" /> })}
-        </p>
-        <p>{app.translator.trans('core.admin.add_extension.developer_text', { a: <a href="http://flarum.org/docs/extend" target="_blank" /> })}</p>
-      </div>
-    );
-  }
-}

js/src/admin/components/AdminHeader.js

@@ -0,0 +1,19 @@
+import Component from '../../common/Component';
+import classList from '../../common/utils/classList';
+import icon from '../../common/helpers/icon';
+
+export default class AdminHeader extends Component {
+  view(vnode) {
+    return [
+      <div className={classList(['AdminHeader', this.attrs.className])}>
+        <div className="container">
+          <h2>
+            {icon(this.attrs.icon)}
+            {vnode.children}
+          </h2>
+          <div className="AdminHeader-description">{this.attrs.description}</div>
+        </div>
+      </div>,
+    ];
+  }
+}

js/src/admin/components/AdminLinkButton.js

@@ -1,16 +0,0 @@
-/*
- * This file is part of Flarum.
- *
- * (c) Toby Zerner <toby.zerner@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-import LinkButton from '../../common/components/LinkButton';
-
-export default class AdminLinkButton extends LinkButton {
-  getButtonContent(children) {
-    return [...super.getButtonContent(children), <div className="AdminLinkButton-description">{this.attrs.description}</div>];
-  }
-}

js/src/admin/components/AdminNav.js

@@ -1,106 +1,151 @@
-/*
- * This file is part of Flarum.
- *
- * (c) Toby Zerner <toby.zerner@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
+import ExtensionLinkButton from './ExtensionLinkButton';
 import Component from '../../common/Component';
-import AdminLinkButton from './AdminLinkButton';
+import LinkButton from '../../common/components/LinkButton';
 import SelectDropdown from '../../common/components/SelectDropdown';
+import getCategorizedExtensions from '../utils/getCategorizedExtensions';
 import ItemList from '../../common/utils/ItemList';
+import Stream from '../../common/utils/Stream';
 
 export default class AdminNav extends Component {
+  oninit(vnode) {
+    super.oninit(vnode);
+
+    this.query = Stream('');
+  }
+
   view() {
     return (
-      <SelectDropdown className="AdminNav App-titleControl" buttonClassName="Button">
-        {this.items().toArray()}
+      <SelectDropdown className="AdminNav App-titleControl AdminNav-Main" buttonClassName="Button">
+        {this.items().toArray().concat(this.extensionItems().toArray())}
       </SelectDropdown>
     );
   }
 
+  oncreate(vnode) {
+    super.oncreate(vnode);
+
+    this.scrollToActive();
+  }
+
+  onupdate() {
+    this.scrollToActive();
+  }
+
+  scrollToActive() {
+    const children = $('.Dropdown-menu').children('.active');
+    const nav = $('#admin-navigation');
+    const time = app.previous.type ? 250 : 0;
+
+    if (
+      children.length > 0 &&
+      (children[0].offsetTop > nav.scrollTop() + nav.outerHeight() || children[0].offsetTop + children[0].offsetHeight < nav.scrollTop())
+    ) {
+      nav.animate(
+        {
+          scrollTop: children[0].offsetTop - nav.height() / 2,
+        },
+        time
+      );
+    }
+  }
+
   /**
-   * Build an item list of links to show in the admin navigation.
+   * Build an item list of main links to show in the admin navigation.
    *
    * @return {ItemList}
    */
   items() {
     const items = new ItemList();
 
+    items.add('category-core', <h4 className="ExtensionListTitle">{app.translator.trans('core.admin.nav.categories.core')}</h4>);
+
     items.add(
       'dashboard',
-      AdminLinkButton.component(
-        {
-          href: app.route('dashboard'),
-          icon: 'far fa-chart-bar',
-          description: app.translator.trans('core.admin.nav.dashboard_text'),
-        },
-        app.translator.trans('core.admin.nav.dashboard_button')
-      )
+      <LinkButton href={app.route('dashboard')} icon="far fa-chart-bar" title={app.translator.trans('core.admin.nav.dashboard_title')}>
+        {app.translator.trans('core.admin.nav.dashboard_button')}
+      </LinkButton>
     );
 
     items.add(
       'basics',
-      AdminLinkButton.component(
-        {
-          href: app.route('basics'),
-          icon: 'fas fa-pencil-alt',
-          description: app.translator.trans('core.admin.nav.basics_text'),
-        },
-        app.translator.trans('core.admin.nav.basics_button')
-      )
+      <LinkButton href={app.route('basics')} icon="fas fa-pencil-alt" title={app.translator.trans('core.admin.nav.basics_title')}>
+        {app.translator.trans('core.admin.nav.basics_button')}
+      </LinkButton>
     );
 
     items.add(
       'mail',
-      AdminLinkButton.component(
-        {
-          href: app.route('mail'),
-          icon: 'fas fa-envelope',
-          description: app.translator.trans('core.admin.nav.email_text'),
-        },
-        app.translator.trans('core.admin.nav.email_button')
-      )
+      <LinkButton href={app.route('mail')} icon="fas fa-envelope" title={app.translator.trans('core.admin.nav.email_title')}>
+        {app.translator.trans('core.admin.nav.email_button')}
+      </LinkButton>
     );
 
     items.add(
       'permissions',
-      AdminLinkButton.component(
-        {
-          href: app.route('permissions'),
-          icon: 'fas fa-key',
-          description: app.translator.trans('core.admin.nav.permissions_text'),
-        },
-        app.translator.trans('core.admin.nav.permissions_button')
-      )
+      <LinkButton href={app.route('permissions')} icon="fas fa-key" title={app.translator.trans('core.admin.nav.permissions_title')}>
+        {app.translator.trans('core.admin.nav.permissions_button')}
+      </LinkButton>
     );
 
     items.add(
       'appearance',
-      AdminLinkButton.component(
-        {
-          href: app.route('appearance'),
-          icon: 'fas fa-paint-brush',
-          description: app.translator.trans('core.admin.nav.appearance_text'),
-        },
-        app.translator.trans('core.admin.nav.appearance_button')
-      )
+      <LinkButton href={app.route('appearance')} icon="fas fa-paint-brush" title={app.translator.trans('core.admin.nav.appearance_title')}>
+        {app.translator.trans('core.admin.nav.appearance_button')}
+      </LinkButton>
     );
 
     items.add(
-      'extensions',
-      AdminLinkButton.component(
-        {
-          href: app.route('extensions'),
-          icon: 'fas fa-puzzle-piece',
-          description: app.translator.trans('core.admin.nav.extensions_text'),
-        },
-        app.translator.trans('core.admin.nav.extensions_button')
-      )
+      'search',
+      <div className="Search-input">
+        <input
+          className="FormControl SearchBar"
+          bidi={this.query}
+          type="search"
+          placeholder={app.translator.trans('core.admin.nav.search_placeholder')}
+        />
+      </div>
     );
 
     return items;
   }
+
+  extensionItems() {
+    const items = new ItemList();
+
+    const categorizedExtensions = getCategorizedExtensions();
+    const categories = app.extensionCategories;
+
+    Object.keys(categorizedExtensions).map((category) => {
+      if (!this.query()) {
+        items.add(
+          `category-${category}`,
+          <h4 className="ExtensionListTitle">{app.translator.trans(`core.admin.nav.categories.${category}`)}</h4>,
+          categories[category]
+        );
+      }
+
+      categorizedExtensions[category].map((extension) => {
+        const query = this.query().toUpperCase();
+        const title = extension.extra['flarum-extension'].title || '';
+        const description = extension.description || '';
+
+        if (!query || title.toUpperCase().includes(query) || description.toUpperCase().includes(query)) {
+          items.add(
+            `extension-${extension.id}`,
+            <ExtensionLinkButton
+              href={app.route('extension', { id: extension.id })}
+              extensionId={extension.id}
+              className="ExtensionNavButton"
+              title={description}
+            >
+              {title}
+            </ExtensionLinkButton>,
+            categories[category]
+          );
+        }
+      });
+    });
+
+    return items;
+  }
 }

js/src/admin/components/AdminPage.js

@@ -0,0 +1,180 @@
+import Page from '../../common/components/Page';
+import Button from '../../common/components/Button';
+import Switch from '../../common/components/Switch';
+import Select from '../../common/components/Select';
+import classList from '../../common/utils/classList';
+import Stream from '../../common/utils/Stream';
+import saveSettings from '../utils/saveSettings';
+import AdminHeader from './AdminHeader';
+
+export default class AdminPage extends Page {
+  oninit(vnode) {
+    super.oninit(vnode);
+
+    this.settings = {};
+
+    this.loading = false;
+  }
+
+  view() {
+    const className = classList(['AdminPage', this.headerInfo().className]);
+
+    return (
+      <div className={className}>
+        {this.header()}
+        <div className="container">{this.content()}</div>
+      </div>
+    );
+  }
+
+  content() {
+    return '';
+  }
+
+  submitButton() {
+    return (
+      <Button onclick={this.saveSettings.bind(this)} className="Button Button--primary" loading={this.loading} disabled={!this.isChanged()}>
+        {app.translator.trans('core.admin.settings.submit_button')}
+      </Button>
+    );
+  }
+
+  header() {
+    const headerInfo = this.headerInfo();
+
+    return (
+      <AdminHeader icon={headerInfo.icon} description={headerInfo.description} className={headerInfo.className + '-header'}>
+        {headerInfo.title}
+      </AdminHeader>
+    );
+  }
+
+  headerInfo() {
+    return {
+      className: '',
+      icon: '',
+      title: '',
+      description: '',
+    };
+  }
+
+  /**
+   * buildSettingComponent takes a settings object and turns it into a component.
+   * Depending on the type of input, you can set the type to 'bool', 'select', or
+   * any standard <input> type. Any values inside the 'extra' object will be added
+   * to the component as an attribute.
+   *
+   * Alternatively, you can pass a callback that will be executed in ExtensionPage's
+   * context to include custom JSX elements.
+   *
+   * @example
+   *
+   * {
+   *    setting: 'acme.checkbox',
+   *    label: app.translator.trans('acme.admin.setting_label'),
+   *    type: 'bool',
+   *    help: app.translator.trans('acme.admin.setting_help'),
+   *    className: 'Setting-item'
+   * }
+   *
+   * @example
+   *
+   * {
+   *    setting: 'acme.select',
+   *    label: app.translator.trans('acme.admin.setting_label'),
+   *    type: 'select',
+   *    options: {
+   *      'option1': 'Option 1 label',
+   *      'option2': 'Option 2 label',
+   *    },
+   *    default: 'option1',
+   * }
+   *
+   * @param setting
+   * @returns {JSX.Element}
+   */
+  buildSettingComponent(entry) {
+    if (typeof entry === 'function') {
+      return entry.call(this);
+    }
+
+    const { setting, help, ...componentAttrs } = entry;
+
+    delete componentAttrs.help;
+
+    const value = this.setting([setting])();
+    if (['bool', 'checkbox', 'switch', 'boolean'].includes(componentAttrs.type)) {
+      return (
+        <div className="Form-group">
+          <Switch state={!!value && value !== '0'} onchange={this.settings[setting]} {...componentAttrs}>
+            {componentAttrs.label}
+          </Switch>
+          <div className="helpText">{help}</div>
+        </div>
+      );
+    } else if (['select', 'dropdown', 'selectdropdown'].includes(componentAttrs.type)) {
+      return (
+        <div className="Form-group">
+          <label>{componentAttrs.label}</label>
+          <div className="helpText">{help}</div>
+          <Select
+            value={value || componentAttrs.default}
+            options={componentAttrs.options}
+            buttonClassName="Button"
+            onchange={this.settings[setting]}
+            {...componentAttrs}
+          />
+        </div>
+      );
+    } else {
+      componentAttrs.className = classList(['FormControl', componentAttrs.className]);
+      return (
+        <div className="Form-group">
+          {componentAttrs.label ? <label>{componentAttrs.label}</label> : ''}
+          <div className="helpText">{help}</div>
+          <input type={componentAttrs.type} bidi={this.setting(setting)} {...componentAttrs} />
+        </div>
+      );
+    }
+  }
+
+  onsaved() {
+    this.loading = false;
+
+    app.alerts.show({ type: 'success' }, app.translator.trans('core.admin.settings.saved_message'));
+  }
+
+  setting(key, fallback = '') {
+    this.settings[key] = this.settings[key] || Stream(app.data.settings[key] || fallback);
+
+    return this.settings[key];
+  }
+
+  dirty() {
+    const dirty = {};
+
+    Object.keys(this.settings).forEach((key) => {
+      const value = this.settings[key]();
+
+      if (value !== app.data.settings[key]) {
+        dirty[key] = value;
+      }
+    });
+
+    return dirty;
+  }
+
+  isChanged() {
+    return Object.keys(this.dirty()).length;
+  }
+
+  saveSettings(e) {
+    e.preventDefault();
+
+    app.alerts.clear();
+
+    this.loading = true;
+
+    return saveSettings(this.dirty()).then(this.onsaved.bind(this));
+  }
+}

js/src/admin/components/AppearancePage.js

@@ -1,133 +1,120 @@
-import Page from '../../common/components/Page';
 import Button from '../../common/components/Button';
-import Switch from '../../common/components/Switch';
-import Stream from '../../common/utils/Stream';
 import EditCustomCssModal from './EditCustomCssModal';
 import EditCustomHeaderModal from './EditCustomHeaderModal';
 import EditCustomFooterModal from './EditCustomFooterModal';
 import UploadImageButton from './UploadImageButton';
-import saveSettings from '../utils/saveSettings';
+import AdminPage from './AdminPage';
 
-export default class AppearancePage extends Page {
-  oninit(vnode) {
-    super.oninit(vnode);
-
-    this.primaryColor = Stream(app.data.settings.theme_primary_color);
-    this.secondaryColor = Stream(app.data.settings.theme_secondary_color);
-    this.darkMode = Stream(app.data.settings.theme_dark_mode);
-    this.coloredHeader = Stream(app.data.settings.theme_colored_header);
+export default class AppearancePage extends AdminPage {
+  headerInfo() {
+    return {
+      className: 'AppearancePage',
+      icon: 'fas fa-paint-brush',
+      title: app.translator.trans('core.admin.appearance.title'),
+      description: app.translator.trans('core.admin.appearance.description'),
+    };
   }
 
-  view() {
-    return (
-      <div className="AppearancePage">
-        <div className="container">
-          <form onsubmit={this.onsubmit.bind(this)}>
-            <fieldset className="AppearancePage-colors">
-              <legend>{app.translator.trans('core.admin.appearance.colors_heading')}</legend>
-              <div className="helpText">{app.translator.trans('core.admin.appearance.colors_text')}</div>
+  content() {
+    return [
+      <div className="Form">
+        <fieldset className="AppearancePage-colors">
+          <legend>{app.translator.trans('core.admin.appearance.colors_heading')}</legend>
+          <div className="helpText">{app.translator.trans('core.admin.appearance.colors_text')}</div>
 
-              <div className="AppearancePage-colors-input">
-                <input className="FormControl" type="text" placeholder="#aaaaaa" bidi={this.primaryColor} />
-                <input className="FormControl" type="text" placeholder="#aaaaaa" bidi={this.secondaryColor} />
-              </div>
+          <div className="AppearancePage-colors-input">
+            {this.buildSettingComponent({
+              type: 'text',
+              setting: 'theme_primary_color',
+              placeholder: '#aaaaaa',
+            })}
+            {this.buildSettingComponent({
+              type: 'text',
+              setting: 'theme_secondary_color',
+              placeholder: '#aaaaaa',
+            })}
+          </div>
 
-              {Switch.component(
-                {
-                  state: this.darkMode(),
-                  onchange: this.darkMode,
-                },
-                app.translator.trans('core.admin.appearance.dark_mode_label')
-              )}
+          {this.buildSettingComponent({
+            type: 'switch',
+            setting: 'theme_dark_mode',
+            label: app.translator.trans('core.admin.appearance.dark_mode_label'),
+          })}
 
-              {Switch.component(
-                {
-                  state: this.coloredHeader(),
-                  onchange: this.coloredHeader,
-                },
-                app.translator.trans('core.admin.appearance.colored_header_label')
-              )}
+          {this.buildSettingComponent({
+            type: 'switch',
+            setting: 'theme_colored_header',
+            label: app.translator.trans('core.admin.appearance.colored_header_label'),
+          })}
 
-              {Button.component(
-                {
-                  className: 'Button Button--primary',
-                  type: 'submit',
-                  loading: this.loading,
-                },
-                app.translator.trans('core.admin.appearance.submit_button')
-              )}
-            </fieldset>
-          </form>
+          {this.submitButton()}
+        </fieldset>
+      </div>,
 
-          <fieldset>
-            <legend>{app.translator.trans('core.admin.appearance.logo_heading')}</legend>
-            <div className="helpText">{app.translator.trans('core.admin.appearance.logo_text')}</div>
-            <UploadImageButton name="logo" />
-          </fieldset>
+      <fieldset>
+        <legend>{app.translator.trans('core.admin.appearance.logo_heading')}</legend>
+        <div className="helpText">{app.translator.trans('core.admin.appearance.logo_text')}</div>
+        <UploadImageButton name="logo" />
+      </fieldset>,
 
-          <fieldset>
-            <legend>{app.translator.trans('core.admin.appearance.favicon_heading')}</legend>
-            <div className="helpText">{app.translator.trans('core.admin.appearance.favicon_text')}</div>
-            <UploadImageButton name="favicon" />
-          </fieldset>
+      <fieldset>
+        <legend>{app.translator.trans('core.admin.appearance.favicon_heading')}</legend>
+        <div className="helpText">{app.translator.trans('core.admin.appearance.favicon_text')}</div>
+        <UploadImageButton name="favicon" />
+      </fieldset>,
 
-          <fieldset>
-            <legend>{app.translator.trans('core.admin.appearance.custom_header_heading')}</legend>
-            <div className="helpText">{app.translator.trans('core.admin.appearance.custom_header_text')}</div>
-            {Button.component(
-              {
-                className: 'Button',
-                onclick: () => app.modal.show(EditCustomHeaderModal),
-              },
-              app.translator.trans('core.admin.appearance.edit_header_button')
-            )}
-          </fieldset>
+      <fieldset>
+        <legend>{app.translator.trans('core.admin.appearance.custom_header_heading')}</legend>
+        <div className="helpText">{app.translator.trans('core.admin.appearance.custom_header_text')}</div>
+        {Button.component(
+          {
+            className: 'Button',
+            onclick: () => app.modal.show(EditCustomHeaderModal),
+          },
+          app.translator.trans('core.admin.appearance.edit_header_button')
+        )}
+      </fieldset>,
 
-          <fieldset>
-            <legend>{app.translator.trans('core.admin.appearance.custom_footer_heading')}</legend>
-            <div className="helpText">{app.translator.trans('core.admin.appearance.custom_footer_text')}</div>
-            {Button.component(
-              {
-                className: 'Button',
-                onclick: () => app.modal.show(EditCustomFooterModal),
-              },
-              app.translator.trans('core.admin.appearance.edit_footer_button')
-            )}
-          </fieldset>
+      <fieldset>
+        <legend>{app.translator.trans('core.admin.appearance.custom_footer_heading')}</legend>
+        <div className="helpText">{app.translator.trans('core.admin.appearance.custom_footer_text')}</div>
+        {Button.component(
+          {
+            className: 'Button',
+            onclick: () => app.modal.show(EditCustomFooterModal),
+          },
+          app.translator.trans('core.admin.appearance.edit_footer_button')
+        )}
+      </fieldset>,
 
-          <fieldset>
-            <legend>{app.translator.trans('core.admin.appearance.custom_styles_heading')}</legend>
-            <div className="helpText">{app.translator.trans('core.admin.appearance.custom_styles_text')}</div>
-            {Button.component(
-              {
-                className: 'Button',
-                onclick: () => app.modal.show(EditCustomCssModal),
-              },
-              app.translator.trans('core.admin.appearance.edit_css_button')
-            )}
-          </fieldset>
-        </div>
-      </div>
-    );
+      <fieldset>
+        <legend>{app.translator.trans('core.admin.appearance.custom_styles_heading')}</legend>
+        <div className="helpText">{app.translator.trans('core.admin.appearance.custom_styles_text')}</div>
+        {Button.component(
+          {
+            className: 'Button',
+            onclick: () => app.modal.show(EditCustomCssModal),
+          },
+          app.translator.trans('core.admin.appearance.edit_css_button')
+        )}
+      </fieldset>,
+    ];
   }
 
-  onsubmit(e) {
+  onsaved() {
+    window.location.reload();
+  }
+
+  saveSettings(e) {
     e.preventDefault();
 
     const hex = /^#[0-9a-f]{3}([0-9a-f]{3})?$/i;
 
-    if (!hex.test(this.primaryColor()) || !hex.test(this.secondaryColor())) {
+    if (!hex.test(this.settings['theme_primary_color']()) || !hex.test(this.settings['theme_secondary_color']())) {
       alert(app.translator.trans('core.admin.appearance.enter_hex_message'));
       return;
     }
 
-    this.loading = true;
-
-    saveSettings({
-      theme_primary_color: this.primaryColor(),
-      theme_secondary_color: this.secondaryColor(),
-      theme_dark_mode: this.darkMode(),
-      theme_colored_header: this.coloredHeader(),
-    }).then(() => window.location.reload());
+    super.saveSettings(e);
   }
 }

js/src/admin/components/BasicsPage.js

@@ -1,34 +1,11 @@
-import Page from '../../common/components/Page';
 import FieldSet from '../../common/components/FieldSet';
-import Select from '../../common/components/Select';
-import Button from '../../common/components/Button';
-import saveSettings from '../utils/saveSettings';
 import ItemList from '../../common/utils/ItemList';
-import Switch from '../../common/components/Switch';
-import Stream from '../../common/utils/Stream';
-import withAttr from '../../common/utils/withAttr';
+import AdminPage from './AdminPage';
 
-export default class BasicsPage extends Page {
+export default class BasicsPage extends AdminPage {
   oninit(vnode) {
     super.oninit(vnode);
 
-    this.loading = false;
-
-    this.fields = [
-      'forum_title',
-      'forum_description',
-      'default_locale',
-      'show_language_selector',
-      'default_route',
-      'welcome_title',
-      'welcome_message',
-      'display_name_driver',
-    ];
-    this.values = {};
-
-    const settings = app.data.settings;
-    this.fields.forEach((key) => (this.values[key] = Stream(settings[key])));
-
     this.localeOptions = {};
     const locales = app.data.locales;
     for (const i in locales) {
@@ -41,125 +18,101 @@ export default class BasicsPage extends Page {
       this.displayNameOptions[identifier] = identifier;
     }, this);
 
-    if (!this.values.display_name_driver() && displayNameDrivers.includes('username')) this.values.display_name_driver('username');
+    this.slugDriverOptions = {};
+    Object.keys(app.data.slugDrivers).forEach((model) => {
+      this.slugDriverOptions[model] = {};
 
-    if (typeof this.values.show_language_selector() !== 'number') this.values.show_language_selector(1);
+      app.data.slugDrivers[model].forEach((option) => {
+        this.slugDriverOptions[model][option] = option;
+      });
+    });
   }
 
-  view() {
-    return (
-      <div className="BasicsPage">
-        <div className="container">
-          <form onsubmit={this.onsubmit.bind(this)}>
-            {FieldSet.component(
-              {
-                label: app.translator.trans('core.admin.basics.forum_title_heading'),
-              },
-              [<input className="FormControl" bidi={this.values.forum_title} />]
-            )}
+  headerInfo() {
+    return {
+      className: 'BasicsPage',
+      icon: 'fas fa-pencil-alt',
+      title: app.translator.trans('core.admin.basics.title'),
+      description: app.translator.trans('core.admin.basics.description'),
+    };
+  }
 
-            {FieldSet.component(
-              {
-                label: app.translator.trans('core.admin.basics.forum_description_heading'),
-              },
-              [
-                <div className="helpText">{app.translator.trans('core.admin.basics.forum_description_text')}</div>,
-                <textarea className="FormControl" bidi={this.values.forum_description} />,
-              ]
-            )}
+  content() {
+    return [
+      <div className="Form">
+        {this.buildSettingComponent({
+          type: 'text',
+          setting: 'forum_title',
+          label: app.translator.trans('core.admin.basics.forum_title_heading'),
+        })}
+        {this.buildSettingComponent({
+          type: 'text',
+          setting: 'forum_description',
+          label: app.translator.trans('core.admin.basics.forum_description_heading'),
+          help: app.translator.trans('core.admin.basics.forum_description_text'),
+        })}
 
-            {Object.keys(this.localeOptions).length > 1
-              ? FieldSet.component(
-                  {
-                    label: app.translator.trans('core.admin.basics.default_language_heading'),
-                  },
-                  [
-                    Select.component({
-                      options: this.localeOptions,
-                      value: this.values.default_locale(),
-                      onchange: this.values.default_locale,
-                    }),
-                    Switch.component(
-                      {
-                        state: this.values.show_language_selector(),
-                        onchange: this.values.show_language_selector,
-                      },
-                      app.translator.trans('core.admin.basics.show_language_selector_label')
-                    ),
-                  ]
-                )
-              : ''}
+        {Object.keys(this.localeOptions).length > 1
+          ? [
+              this.buildSettingComponent({
+                type: 'select',
+                setting: 'default_locale',
+                options: this.localeOptions,
+                label: app.translator.trans('core.admin.basics.default_language_heading'),
+              }),
+              this.buildSettingComponent({
+                type: 'switch',
+                setting: 'show_language_selector',
+                label: app.translator.trans('core.admin.basics.show_language_selector_label'),
+              }),
+            ]
+          : ''}
 
-            {FieldSet.component(
-              {
-                label: app.translator.trans('core.admin.basics.home_page_heading'),
-                className: 'BasicsPage-homePage',
-              },
-              [
-                <div className="helpText">{app.translator.trans('core.admin.basics.home_page_text')}</div>,
-                this.homePageItems()
-                  .toArray()
-                  .map(({ path, label }) => (
-                    <label className="checkbox">
-                      <input
-                        type="radio"
-                        name="homePage"
-                        value={path}
-                        checked={this.values.default_route() === path}
-                        onclick={withAttr('value', this.values.default_route)}
-                      />
-                      {label}
-                    </label>
-                  )),
-              ]
-            )}
+        <FieldSet className="BasicsPage-homePage Form-group" label={app.translator.trans('core.admin.basics.home_page_heading')}>
+          <div className="helpText">{app.translator.trans('core.admin.basics.home_page_text')}</div>
+          {this.homePageItems()
+            .toArray()
+            .map(({ path, label }) => (
+              <label className="checkbox">
+                <input type="radio" name="homePage" value={path} bidi={this.setting('default_route')} />
+                {label}
+              </label>
+            ))}
+        </FieldSet>
 
-            {FieldSet.component(
-              {
-                label: app.translator.trans('core.admin.basics.welcome_banner_heading'),
-                className: 'BasicsPage-welcomeBanner',
-              },
-              [
-                <div className="helpText">{app.translator.trans('core.admin.basics.welcome_banner_text')}</div>,
-                <div className="BasicsPage-welcomeBanner-input">
-                  <input className="FormControl" bidi={this.values.welcome_title} />
-                  <textarea className="FormControl" bidi={this.values.welcome_message} />
-                </div>,
-              ]
-            )}
-
-            {Object.keys(this.displayNameOptions).length > 1
-              ? FieldSet.component(
-                  {
-                    label: app.translator.trans('core.admin.basics.display_name_heading'),
-                  },
-                  [
-                    <div className="helpText">{app.translator.trans('core.admin.basics.display_name_text')}</div>,
-                    Select.component({
-                      options: this.displayNameOptions,
-                      bidi: this.values.display_name_driver,
-                    }),
-                  ]
-                )
-              : ''}
-
-            {Button.component(
-              {
-                type: 'submit',
-                className: 'Button Button--primary',
-                loading: this.loading,
-                disabled: !this.changed(),
-              },
-              app.translator.trans('core.admin.basics.submit_button')
-            )}
-          </form>
+        <div className="Form-group BasicsPage-welcomeBanner-input">
+          <label>{app.translator.trans('core.admin.basics.welcome_banner_heading')}</label>
+          <div className="helpText">{app.translator.trans('core.admin.basics.welcome_banner_text')}</div>
+          <input type="text" className="FormControl" bidi={this.setting('welcome_title')} />
+          <textarea className="FormControl" bidi={this.setting('welcome_message')} />
         </div>
-      </div>
-    );
-  }
 
-  changed() {
-    return this.fields.some((key) => this.values[key]() !== app.data.settings[key]);
+        {Object.keys(this.displayNameOptions).length > 1
+          ? this.buildSettingComponent({
+              type: 'select',
+              setting: 'display_name_driver',
+              options: this.displayNameOptions,
+              label: app.translator.trans('core.admin.basics.display_name_heading'),
+              help: app.translator.trans('core.admin.basics.display_name_text'),
+            })
+          : ''}
+
+        {Object.keys(this.slugDriverOptions).map((model) => {
+          const options = this.slugDriverOptions[model];
+          if (Object.keys(options).length > 1) {
+            return this.buildSettingComponent({
+              type: 'select',
+              setting: `slug_driver_${model}`,
+              options,
+              label: app.translator.trans('core.admin.basics.slug_driver_heading', { model }),
+              help: app.translator.trans('core.admin.basics.slug_driver_text', { model }),
+            });
+          }
+        })}
+
+        {this.submitButton()}
+      </div>,
+    ];
   }
 
   /**
@@ -179,27 +132,4 @@ export default class BasicsPage extends Page {
 
     return items;
   }
-
-  onsubmit(e) {
-    e.preventDefault();
-
-    if (this.loading) return;
-
-    this.loading = true;
-    app.alerts.dismiss(this.successAlert);
-
-    const settings = {};
-
-    this.fields.forEach((key) => (settings[key] = this.values[key]()));
-
-    saveSettings(settings)
-      .then(() => {
-        this.successAlert = app.alerts.show({ type: 'success' }, app.translator.trans('core.admin.basics.saved_message'));
-      })
-      .catch(() => {})
-      .then(() => {
-        this.loading = false;
-        m.redraw();
-      });
-  }
 }

js/src/admin/components/DashboardPage.js

@@ -1,16 +1,29 @@
-import Page from '../../common/components/Page';
 import StatusWidget from './StatusWidget';
+import ExtensionsWidget from './ExtensionsWidget';
+import ItemList from '../../common/utils/ItemList';
+import AdminPage from './AdminPage';
 
-export default class DashboardPage extends Page {
-  view() {
-    return (
-      <div className="DashboardPage">
-        <div className="container">{this.availableWidgets()}</div>
-      </div>
-    );
+export default class DashboardPage extends AdminPage {
+  headerInfo() {
+    return {
+      className: 'DashboardPage',
+      icon: 'fas fa-chart-bar',
+      title: app.translator.trans('core.admin.dashboard.title'),
+      description: app.translator.trans('core.admin.dashboard.description'),
+    };
+  }
+
+  content() {
+    return this.availableWidgets().toArray();
   }
 
   availableWidgets() {
-    return [<StatusWidget />];
+    const items = new ItemList();
+
+    items.add('status', <StatusWidget />, 30);
+
+    items.add('extensions', <ExtensionsWidget />, 10);
+
+    return items;
   }
 }

js/src/admin/components/ExtensionLinkButton.js

@@ -0,0 +1,29 @@
+import isExtensionEnabled from '../utils/isExtensionEnabled';
+import LinkButton from '../../common/components/LinkButton';
+import icon from '../../common/helpers/icon';
+import ItemList from '../../common/utils/ItemList';
+
+export default class ExtensionLinkButton extends LinkButton {
+  getButtonContent(children) {
+    const content = super.getButtonContent(children);
+    const extension = app.data.extensions[this.attrs.extensionId];
+    const statuses = this.statusItems(extension.id).toArray();
+
+    content.unshift(
+      <span className="ExtensionListItem-icon ExtensionIcon" style={extension.icon}>
+        {extension.icon ? icon(extension.icon.name) : ''}
+      </span>
+    );
+    content.push(statuses);
+
+    return content;
+  }
+
+  statusItems(name) {
+    const items = new ItemList();
+
+    items.add('enabled', <span class={'ExtensionListItem-Dot ' + (isExtensionEnabled(name) ? 'enabled' : 'disabled')} />);
+
+    return items;
+  }
+}

js/src/admin/components/ExtensionPage.js

@@ -0,0 +1,248 @@
+import Button from '../../common/components/Button';
+import Link from '../../common/components/Link';
+import LinkButton from '../../common/components/LinkButton';
+import Switch from '../../common/components/Switch';
+import icon from '../../common/helpers/icon';
+import punctuateSeries from '../../common/helpers/punctuateSeries';
+import listItems from '../../common/helpers/listItems';
+import ItemList from '../../common/utils/ItemList';
+import LoadingModal from './LoadingModal';
+import ExtensionPermissionGrid from './ExtensionPermissionGrid';
+import isExtensionEnabled from '../utils/isExtensionEnabled';
+import AdminPage from './AdminPage';
+
+export default class ExtensionPage extends AdminPage {
+  oninit(vnode) {
+    super.oninit(vnode);
+
+    this.extension = app.data.extensions[this.attrs.id];
+    this.changingState = false;
+
+    this.infoFields = {
+      discuss: 'fas fa-comment-alt',
+      documentation: 'fas fa-book',
+      support: 'fas fa-life-ring',
+      website: 'fas fa-link',
+      donate: 'fas fa-donate',
+      source: 'fas fa-code',
+    };
+
+    if (!this.extension) {
+      return m.route.set(app.route('dashboard'));
+    }
+  }
+
+  className() {
+    if (!this.extension) return '';
+
+    return this.extension.id + '-Page';
+  }
+
+  view() {
+    if (!this.extension) return null;
+
+    return (
+      <div className={'ExtensionPage ' + this.className()}>
+        {this.header()}
+        {!this.isEnabled() ? (
+          <div className="container">
+            <h3 className="ExtensionPage-subHeader">{app.translator.trans('core.admin.extension.enable_to_see')}</h3>
+          </div>
+        ) : (
+          <div className="ExtensionPage-body">{this.sections().toArray()}</div>
+        )}
+      </div>
+    );
+  }
+
+  header() {
+    const isEnabled = this.isEnabled();
+
+    return [
+      <div className="ExtensionPage-header">
+        <div className="container">
+          <div className="ExtensionTitle">
+            <span className="ExtensionIcon" style={this.extension.icon}>
+              {this.extension.icon ? icon(this.extension.icon.name) : ''}
+            </span>
+            <div className="ExtensionName">
+              <h2>{this.extension.extra['flarum-extension'].title}</h2>
+            </div>
+            <div className="ExtensionPage-headerTopItems">
+              <ul>{listItems(this.topItems().toArray())}</ul>
+            </div>
+          </div>
+          <div className="helpText">{this.extension.description}</div>
+          <div className="ExtensionPage-headerItems">
+            <Switch
+              state={this.changingState ? !isEnabled : isEnabled}
+              loading={this.changingState}
+              onchange={this.toggle.bind(this, this.extension.id)}
+            >
+              {isEnabled ? app.translator.trans('core.admin.extension.enabled') : app.translator.trans('core.admin.extension.disabled')}
+            </Switch>
+            <aside className="ExtensionInfo">
+              <ul>{listItems(this.infoItems().toArray())}</ul>
+            </aside>
+          </div>
+        </div>
+      </div>,
+    ];
+  }
+
+  sections() {
+    const items = new ItemList();
+
+    items.add('content', this.content());
+
+    items.add('permissions', [
+      <div className="ExtensionPage-permissions">
+        <div className="ExtensionPage-permissions-header">
+          <div className="container">
+            <h2 className="ExtensionTitle">{app.translator.trans('core.admin.extension.permissions_title')}</h2>
+          </div>
+        </div>
+        <div className="container">
+          {app.extensionData.extensionHasPermissions(this.extension.id) ? (
+            ExtensionPermissionGrid.component({ extensionId: this.extension.id })
+          ) : (
+            <h3 className="ExtensionPage-subHeader">{app.translator.trans('core.admin.extension.no_permissions')}</h3>
+          )}
+        </div>
+      </div>,
+    ]);
+
+    return items;
+  }
+
+  content() {
+    const settings = app.extensionData.getSettings(this.extension.id);
+
+    return (
+      <div className="ExtensionPage-settings">
+        <div className="container">
+          {settings ? (
+            <div className="Form">
+              {settings.map(this.buildSettingComponent.bind(this))}
+              <div className="Form-group">{this.submitButton()}</div>
+            </div>
+          ) : (
+            <h3 className="ExtensionPage-subHeader">{app.translator.trans('core.admin.extension.no_settings')}</h3>
+          )}
+        </div>
+      </div>
+    );
+  }
+
+  topItems() {
+    const items = new ItemList();
+
+    items.add('version', <span className="ExtensionVersion">{this.extension.version}</span>);
+
+    if (!this.isEnabled()) {
+      const uninstall = () => {
+        if (confirm(app.translator.trans('core.admin.extension.confirm_uninstall'))) {
+          app
+            .request({
+              url: app.forum.attribute('apiUrl') + '/extensions/' + this.extension.id,
+              method: 'DELETE',
+            })
+            .then(() => window.location.reload());
+
+          app.modal.show(LoadingModal);
+        }
+      };
+
+      items.add(
+        'uninstall',
+        <Button icon="fas fa-trash-alt" className="Button Button--primary" onclick={uninstall.bind(this)}>
+          {app.translator.trans('core.admin.extension.uninstall_button')}
+        </Button>
+      );
+    }
+
+    return items;
+  }
+
+  infoItems() {
+    const items = new ItemList();
+
+    const links = this.extension.links;
+
+    if (links.authors.length) {
+      let authors = [];
+
+      links.authors.map((author) => {
+        authors.push(
+          <Link href={author.link} external={true} target="_blank">
+            {author.name}
+          </Link>
+        );
+      });
+
+      items.add('authors', [icon('fas fa-user'), <span>{punctuateSeries(authors)}</span>]);
+    }
+
+    Object.keys(this.infoFields).map((field) => {
+      if (links[field]) {
+        items.add(
+          field,
+          <LinkButton href={links[field]} icon={this.infoFields[field]} external={true} target="_blank">
+            {app.translator.trans(`core.admin.extension.info_links.${field}`)}
+          </LinkButton>
+        );
+      }
+    });
+
+    return items;
+  }
+
+  toggle() {
+    const enabled = this.isEnabled();
+
+    this.changingState = true;
+
+    app
+      .request({
+        url: app.forum.attribute('apiUrl') + '/extensions/' + this.extension.id,
+        method: 'PATCH',
+        body: { enabled: !enabled },
+        errorHandler: this.onerror.bind(this),
+      })
+      .then(() => {
+        if (!enabled) localStorage.setItem('enabledExtension', this.extension.id);
+        window.location.reload();
+      });
+
+    app.modal.show(LoadingModal);
+  }
+
+  isEnabled() {
+    return isExtensionEnabled(this.extension.id);
+  }
+
+  onerror(e) {
+    // We need to give the modal animation time to start; if we close the modal too early,
+    // it breaks the bootstrap modal library.
+    // TODO: This workaround should be removed when we move away from bootstrap JS for modals.
+    setTimeout(() => {
+      app.modal.close();
+    }, 300); // Bootstrap's Modal.TRANSITION_DURATION is 300 ms.
+
+    this.changingState = false;
+
+    if (e.status !== 409) {
+      throw e;
+    }
+
+    const error = e.response.errors[0];
+
+    app.alerts.show(
+      { type: 'error' },
+      app.translator.trans(`core.lib.error.${error.code}_message`, {
+        extension: error.extension,
+        extensions: error.extensions.join(', '),
+      })
+    );
+  }
+}

js/src/admin/components/ExtensionPermissionGrid.js

@@ -0,0 +1,53 @@
+import PermissionGrid from './PermissionGrid';
+import Button from '../../common/components/Button';
+import ItemList from '../../common/utils/ItemList';
+
+export default class ExtensionPermissionGrid extends PermissionGrid {
+  oninit(vnode) {
+    super.oninit(vnode);
+
+    this.extensionId = this.attrs.extensionId;
+  }
+
+  permissionItems() {
+    const permissionCategories = super.permissionItems();
+
+    permissionCategories.items = Object.entries(permissionCategories.items)
+      .filter(([category, info]) => info.content.children.length > 0)
+      .reduce((obj, [category, info]) => {
+        obj[category] = info;
+        return obj;
+      }, {});
+
+    return permissionCategories;
+  }
+
+  viewItems() {
+    return app.extensionData.getExtensionPermissions(this.extensionId, 'view') || new ItemList();
+  }
+
+  startItems() {
+    return app.extensionData.getExtensionPermissions(this.extensionId, 'start') || new ItemList();
+  }
+
+  replyItems() {
+    return app.extensionData.getExtensionPermissions(this.extensionId, 'reply') || new ItemList();
+  }
+
+  moderateItems() {
+    return app.extensionData.getExtensionPermissions(this.extensionId, 'moderate') || new ItemList();
+  }
+
+  scopeControlItems() {
+    const items = new ItemList();
+
+    items.add(
+      'configureScopes',
+      <Button className="Button Button--text" onclick={() => m.route.set(app.route('permissions'))}>
+        {app.translator.trans('core.admin.extension.configure_scopes')}
+      </Button>
+    );
+
+    return items;
+  }
+}

js/src/admin/components/ExtensionsPage.js

@@ -1,158 +0,0 @@
-import Page from '../../common/components/Page';
-import Button from '../../common/components/Button';
-import Dropdown from '../../common/components/Dropdown';
-import AddExtensionModal from './AddExtensionModal';
-import LoadingModal from './LoadingModal';
-import ItemList from '../../common/utils/ItemList';
-import icon from '../../common/helpers/icon';
-
-export default class ExtensionsPage extends Page {
-  view() {
-    return (
-      <div className="ExtensionsPage">
-        <div className="ExtensionsPage-header">
-          <div className="container">
-            {Button.component(
-              {
-                icon: 'fas fa-plus',
-                className: 'Button Button--primary',
-                onclick: () => app.modal.show(AddExtensionModal),
-              },
-              app.translator.trans('core.admin.extensions.add_button')
-            )}
-          </div>
-        </div>
-
-        <div className="ExtensionsPage-list">
-          <div className="container">
-            <ul className="ExtensionList">
-              {Object.keys(app.data.extensions).map((id) => {
-                const extension = app.data.extensions[id];
-                const controls = this.controlItems(extension.id).toArray();
-
-                return (
-                  <li className={'ExtensionListItem ' + (!this.isEnabled(extension.id) ? 'disabled' : '')}>
-                    <div className="ExtensionListItem-content">
-                      <span className="ExtensionListItem-icon ExtensionIcon" style={extension.icon}>
-                        {extension.icon ? icon(extension.icon.name) : ''}
-                      </span>
-                      {controls.length ? (
-                        <Dropdown
-                          className="ExtensionListItem-controls"
-                          buttonClassName="Button Button--icon Button--flat"
-                          menuClassName="Dropdown-menu--right"
-                          icon="fas fa-ellipsis-h"
-                        >
-                          {controls}
-                        </Dropdown>
-                      ) : (
-                        ''
-                      )}
-                      <div className="ExtensionListItem-main">
-                        <label className="ExtensionListItem-title">
-                          <input type="checkbox" checked={this.isEnabled(extension.id)} onclick={this.toggle.bind(this, extension.id)} />{' '}
-                          {extension.extra['flarum-extension'].title}
-                        </label>
-                        <div className="ExtensionListItem-version">{extension.version}</div>
-                        <div className="ExtensionListItem-description">{extension.description}</div>
-                      </div>
-                    </div>
-                  </li>
-                );
-              })}
-            </ul>
-          </div>
-        </div>
-      </div>
-    );
-  }
-
-  controlItems(name) {
-    const items = new ItemList();
-    const enabled = this.isEnabled(name);
-
-    if (app.extensionSettings[name]) {
-      items.add(
-        'settings',
-        Button.component(
-          {
-            icon: 'fas fa-cog',
-            onclick: app.extensionSettings[name],
-          },
-          app.translator.trans('core.admin.extensions.settings_button')
-        )
-      );
-    }
-
-    if (!enabled) {
-      items.add(
-        'uninstall',
-        Button.component(
-          {
-            icon: 'far fa-trash-alt',
-            onclick: () => {
-              app
-                .request({
-                  url: app.forum.attribute('apiUrl') + '/extensions/' + name,
-                  method: 'DELETE',
-                })
-                .then(() => window.location.reload());
-
-              app.modal.show(LoadingModal);
-            },
-          },
-          app.translator.trans('core.admin.extensions.uninstall_button')
-        )
-      );
-    }
-
-    return items;
-  }
-
-  isEnabled(name) {
-    const enabled = JSON.parse(app.data.settings.extensions_enabled);
-
-    return enabled.indexOf(name) !== -1;
-  }
-
-  toggle(id) {
-    const enabled = this.isEnabled(id);
-
-    app
-      .request({
-        url: app.forum.attribute('apiUrl') + '/extensions/' + id,
-        method: 'PATCH',
-        body: { enabled: !enabled },
-        errorHandler: this.onerror.bind(this),
-      })
-      .then(() => {
-        if (!enabled) localStorage.setItem('enabledExtension', id);
-        window.location.reload();
-      });
-
-    app.modal.show(LoadingModal);
-  }
-
-  onerror(e) {
-    // We need to give the modal animation time to start; if we close the modal too early,
-    // it breaks the bootstrap modal library.
-    // TODO: This workaround should be removed when we move away from bootstrap JS for modals.
-    setTimeout(() => {
-      app.modal.close();
-    }, 300); // Bootstrap's Modal.TRANSITION_DURATION is 300 ms.
-
-    if (e.status !== 409) {
-      throw e;
-    }
-
-    const error = e.response.errors[0];
-
-    app.alerts.show(
-      { type: 'error' },
-      app.translator.trans(`core.lib.error.${error.code}_message`, {
-        extension: error.extension,
-        extensions: error.extensions.join(', '),
-      })
-    );
-  }
-}

js/src/admin/components/ExtensionsWidget.js

@@ -0,0 +1,51 @@
+import DashboardWidget from './DashboardWidget';
+import isExtensionEnabled from '../utils/isExtensionEnabled';
+import getCategorizedExtensions from '../utils/getCategorizedExtensions';
+import Link from '../../common/components/Link';
+import icon from '../../common/helpers/icon';
+
+export default class ExtensionsWidget extends DashboardWidget {
+  oninit(vnode) {
+    super.oninit(vnode);
+
+    this.categorizedExtensions = getCategorizedExtensions();
+  }
+
+  className() {
+    return 'ExtensionsWidget';
+  }
+
+  content() {
+    const categories = app.extensionCategories;
+
+    return (
+      <div className="ExtensionsWidget-list">
+        {Object.keys(categories).map((category) => (this.categorizedExtensions[category] ? this.extensionCategory(category) : ''))}
+      </div>
+    );
+  }
+
+  extensionCategory(category) {
+    return (
+      <div className="ExtensionList-Category">
+        <h4 className="ExtensionList-Label">{app.translator.trans(`core.admin.nav.categories.${category}`)}</h4>
+        <ul className="ExtensionList">{this.categorizedExtensions[category].map((extension) => this.extensionWidget(extension))}</ul>
+      </div>
+    );
+  }
+
+  extensionWidget(extension) {
+    return (
+      <li className={'ExtensionListItem ' + (!isExtensionEnabled(extension.id) ? 'disabled' : '')}>
+        <Link href={app.route('extension', { id: extension.id })}>
+          <div className="ExtensionListItem-content">
+            <span className="ExtensionListItem-icon ExtensionIcon" style={extension.icon}>
+              {extension.icon ? icon(extension.icon.name) : ''}
+            </span>
+            <span className="ExtensionListItem-title">{extension.extra['flarum-extension'].title}</span>
+          </div>
+        </Link>
+      </li>
+    );
+  }
+}

js/src/admin/components/HeaderSecondary.js

@@ -1,4 +1,5 @@
 import Component from '../../common/Component';
+import LinkButton from '../../common/components/LinkButton';
 import SessionDropdown from './SessionDropdown';
 import ItemList from '../../common/utils/ItemList';
 import listItems from '../../common/helpers/listItems';
@@ -19,6 +20,13 @@ export default class HeaderSecondary extends Component {
   items() {
     const items = new ItemList();
 
+    items.add(
+      'help',
+      <LinkButton href="https://docs.flarum.org/troubleshoot.html" icon="fas fa-question-circle" external={true} target="_blank">
+        {app.translator.trans('core.admin.header.get_help')}
+      </LinkButton>
+    );
+
     items.add('session', SessionDropdown.component());
 
     return items;

js/src/admin/components/MailPage.js

@@ -1,32 +1,31 @@
-import Page from '../../common/components/Page';
 import FieldSet from '../../common/components/FieldSet';
 import Button from '../../common/components/Button';
 import Alert from '../../common/components/Alert';
-import Select from '../../common/components/Select';
 import LoadingIndicator from '../../common/components/LoadingIndicator';
-import saveSettings from '../utils/saveSettings';
-import Stream from '../../common/utils/Stream';
+import AdminPage from './AdminPage';
 
-export default class MailPage extends Page {
+export default class MailPage extends AdminPage {
   oninit(vnode) {
     super.oninit(vnode);
 
-    this.saving = false;
     this.sendingTest = false;
     this.refresh();
   }
 
+  headerInfo() {
+    return {
+      className: 'MailPage',
+      icon: 'fas fa-envelope',
+      title: app.translator.trans('core.admin.email.title'),
+      description: app.translator.trans('core.admin.email.description'),
+    };
+  }
+
   refresh() {
     this.loading = true;
 
-    this.driverFields = {};
-    this.fields = ['mail_driver', 'mail_from'];
-    this.values = {};
     this.status = { sending: false, errors: {} };
 
-    const settings = app.data.settings;
-    this.fields.forEach((key) => (this.values[key] = Stream(settings[key])));
-
     app
       .request({
         method: 'GET',
@@ -37,150 +36,78 @@ export default class MailPage extends Page {
         this.status.sending = response['data']['attributes']['sending'];
         this.status.errors = response['data']['attributes']['errors'];
 
-        for (const driver in this.driverFields) {
-          for (const field in this.driverFields[driver]) {
-            this.fields.push(field);
-            this.values[field] = Stream(settings[field]);
-          }
-        }
-
         this.loading = false;
         m.redraw();
       });
   }
 
-  view() {
-    if (this.loading || this.saving) {
-      return (
-        <div className="MailPage">
-          <div className="container">
-            <LoadingIndicator />
-          </div>
-        </div>
-      );
+  content() {
+    if (this.loading) {
+      return <LoadingIndicator />;
     }
 
-    const fields = this.driverFields[this.values.mail_driver()];
+    const fields = this.driverFields[this.setting('mail_driver')()];
     const fieldKeys = Object.keys(fields);
 
     return (
-      <div className="MailPage">
-        <div className="container">
-          <form onsubmit={this.onsubmit.bind(this)}>
-            <h2>{app.translator.trans('core.admin.email.heading')}</h2>
-            <div className="helpText">{app.translator.trans('core.admin.email.text')}</div>
+      <div className="Form">
+        {this.buildSettingComponent({
+          type: 'text',
+          setting: 'mail_from',
+          label: app.translator.trans('core.admin.email.addresses_heading'),
+          className: 'MailPage-MailSettings',
+        })}
+        {this.buildSettingComponent({
+          type: 'select',
+          setting: 'mail_driver',
+          options: Object.keys(this.driverFields).reduce((memo, val) => ({ ...memo, [val]: val }), {}),
+          label: app.translator.trans('core.admin.email.driver_heading'),
+          className: 'MailPage-MailSettings',
+        })}
+        {this.status.sending ||
+          Alert.component(
+            {
+              dismissible: false,
+            },
+            app.translator.trans('core.admin.email.not_sending_message')
+          )}
 
-            {FieldSet.component(
-              {
-                label: app.translator.trans('core.admin.email.addresses_heading'),
-                className: 'MailPage-MailSettings',
-              },
-              [
-                <div className="MailPage-MailSettings-input">
-                  <label>
-                    {app.translator.trans('core.admin.email.from_label')}
-                    <input className="FormControl" bidi={this.values.mail_from} />
-                  </label>
-                </div>,
-              ]
-            )}
+        {fieldKeys.length > 0 && (
+          <FieldSet label={app.translator.trans(`core.admin.email.${this.setting('mail_driver')()}_heading`)} className="MailPage-MailSettings">
+            <div className="MailPage-MailSettings-input">
+              {fieldKeys.map((field) => {
+                const fieldInfo = fields[field];
 
-            {FieldSet.component(
-              {
-                label: app.translator.trans('core.admin.email.driver_heading'),
-                className: 'MailPage-MailSettings',
-              },
-              [
-                <div className="MailPage-MailSettings-input">
-                  <label>
-                    {app.translator.trans('core.admin.email.driver_label')}
-                    <Select
-                      value={this.values.mail_driver()}
-                      options={Object.keys(this.driverFields).reduce((memo, val) => ({ ...memo, [val]: val }), {})}
-                      onchange={this.values.mail_driver}
-                    />
-                  </label>
-                </div>,
-              ]
-            )}
+                return [
+                  this.buildSettingComponent({
+                    type: typeof this.setting(field)() === 'string' ? 'text' : 'select',
+                    label: app.translator.trans(`core.admin.email.${field}_label`),
+                    setting: field,
+                    options: fieldInfo,
+                  }),
+                  this.status.errors[field] && <p className="ValidationError">{this.status.errors[field]}</p>,
+                ];
+              })}
+            </div>
+          </FieldSet>
+        )}
+        {this.submitButton()}
 
-            {this.status.sending ||
-              Alert.component(
-                {
-                  dismissible: false,
-                },
-                app.translator.trans('core.admin.email.not_sending_message')
-              )}
-
-            {fieldKeys.length > 0 &&
-              FieldSet.component(
-                {
-                  label: app.translator.trans(`core.admin.email.${this.values.mail_driver()}_heading`),
-                  className: 'MailPage-MailSettings',
-                },
-                [
-                  <div className="MailPage-MailSettings-input">
-                    {fieldKeys.map((field) => [
-                      <label>
-                        {app.translator.trans(`core.admin.email.${field}_label`)}
-                        {this.renderField(field)}
-                      </label>,
-                      this.status.errors[field] && <p className="ValidationError">{this.status.errors[field]}</p>,
-                    ])}
-                  </div>,
-                ]
-              )}
-
-            <FieldSet>
-              {Button.component(
-                {
-                  type: 'submit',
-                  className: 'Button Button--primary',
-                  disabled: !this.changed(),
-                },
-                app.translator.trans('core.admin.email.submit_button')
-              )}
-            </FieldSet>
-
-            {FieldSet.component(
-              {
-                label: app.translator.trans('core.admin.email.send_test_mail_heading'),
-                className: 'MailPage-MailSettings',
-              },
-              [
-                <div className="helpText">{app.translator.trans('core.admin.email.send_test_mail_text', { email: app.session.user.email() })}</div>,
-                Button.component(
-                  {
-                    className: 'Button Button--primary',
-                    disabled: this.sendingTest || this.changed(),
-                    onclick: () => this.sendTestEmail(),
-                  },
-                  app.translator.trans('core.admin.email.send_test_mail_button')
-                ),
-              ]
-            )}
-          </form>
-        </div>
+        <FieldSet label={app.translator.trans('core.admin.email.send_test_mail_heading')} className="MailPage-MailSettings">
+          <div className="helpText">{app.translator.trans('core.admin.email.send_test_mail_text', { email: app.session.user.email() })}</div>
+          {Button.component(
+            {
+              className: 'Button Button--primary',
+              disabled: this.sendingTest || this.isChanged(),
+              onclick: () => this.sendTestEmail(),
+            },
+            app.translator.trans('core.admin.email.send_test_mail_button')
+          )}
+        </FieldSet>
       </div>
     );
   }
 
-  renderField(name) {
-    const driver = this.values.mail_driver();
-    const field = this.driverFields[driver][name];
-    const prop = this.values[name];
-
-    if (typeof field === 'string') {
-      return <input className="FormControl" bidi={prop} />;
-    } else {
-      return <Select value={prop()} options={field} onchange={prop} />;
-    }
-  }
-
-  changed() {
-    return this.fields.some((key) => this.values[key]() !== app.data.settings[key]);
-  }
-
   sendTestEmail() {
     if (this.saving || this.sendingTest) return;
 
@@ -203,26 +130,7 @@ export default class MailPage extends Page {
       });
   }
 
-  onsubmit(e) {
-    e.preventDefault();
-
-    if (this.saving || this.sendingTest) return;
-
-    this.saving = true;
-    app.alerts.dismiss(this.successAlert);
-
-    const settings = {};
-
-    this.fields.forEach((key) => (settings[key] = this.values[key]()));
-
-    saveSettings(settings)
-      .then(() => {
-        this.successAlert = app.alerts.show({ type: 'success' }, app.translator.trans('core.admin.basics.saved_message'));
-      })
-      .catch(() => {})
-      .then(() => {
-        this.saving = false;
-        this.refresh();
-      });
+  saveSettings(e) {
+    super.saveSettings(e).then(this.refresh());
   }
 }

js/src/admin/components/PermissionGrid.js

@@ -6,12 +6,6 @@ import ItemList from '../../common/utils/ItemList';
 import icon from '../../common/helpers/icon';
 
 export default class PermissionGrid extends Component {
-  oninit(vnode) {
-    super.oninit(vnode);
-
-    this.permissions = this.permissionItems().toArray();
-  }
-
   view() {
     const scopes = this.scopeItems().toArray();
 
@@ -35,25 +29,27 @@ export default class PermissionGrid extends Component {
             <th>{this.scopeControlItems().toArray()}</th>
           </tr>
         </thead>
-        {this.permissions.map((section) => (
-          <tbody>
-            <tr className="PermissionGrid-section">
-              <th>{section.label}</th>
-              {permissionCells(section)}
-              <td />
-            </tr>
-            {section.children.map((child) => (
-              <tr className="PermissionGrid-child">
-                <th>
-                  {icon(child.icon)}
-                  {child.label}
-                </th>
-                {permissionCells(child)}
+        {this.permissionItems()
+          .toArray()
+          .map((section) => (
+            <tbody>
+              <tr className="PermissionGrid-section">
+                <th>{section.label}</th>
+                {permissionCells(section)}
                 <td />
               </tr>
-            ))}
-          </tbody>
-        ))}
+              {section.children.map((child) => (
+                <tr className="PermissionGrid-child">
+                  <th>
+                    {icon(child.icon)}
+                    {child.label}
+                  </th>
+                  {permissionCells(child)}
+                  <td />
+                </tr>
+              ))}
+            </tbody>
+          ))}
       </table>
     );
   }
@@ -158,6 +154,8 @@ export default class PermissionGrid extends Component {
       permission: 'user.viewLastSeenAt',
     });
 
+    items.merge(app.extensionData.getAllExtensionPermissions('view'));
+
     return items;
   }
 
@@ -198,6 +196,8 @@ export default class PermissionGrid extends Component {
       90
     );
 
+    items.merge(app.extensionData.getAllExtensionPermissions('start'));
+
     return items;
   }
 
@@ -238,6 +238,8 @@ export default class PermissionGrid extends Component {
       90
     );
 
+    items.merge(app.extensionData.getAllExtensionPermissions('reply'));
+
     return items;
   }
 
@@ -325,15 +327,37 @@ export default class PermissionGrid extends Component {
     );
 
     items.add(
-      'userEdit',
+      'userEditCredentials',
       {
         icon: 'fas fa-user-cog',
+        label: app.translator.trans('core.admin.permissions.edit_users_credentials_label'),
+        permission: 'user.editCredentials',
+      },
+      60
+    );
+
+    items.add(
+      'userEditGroups',
+      {
+        icon: 'fas fa-users-cog',
+        label: app.translator.trans('core.admin.permissions.edit_users_groups_label'),
+        permission: 'user.editGroups',
+      },
+      60
+    );
+
+    items.add(
+      'userEdit',
+      {
+        icon: 'fas fa-address-card',
         label: app.translator.trans('core.admin.permissions.edit_users_label'),
         permission: 'user.edit',
       },
       60
     );
 
+    items.merge(app.extensionData.getAllExtensionPermissions('moderate'));
+
     return items;
   }
 

js/src/admin/components/PermissionsPage.js

@@ -1,40 +1,43 @@
-import Page from '../../common/components/Page';
 import GroupBadge from '../../common/components/GroupBadge';
 import EditGroupModal from './EditGroupModal';
 import Group from '../../common/models/Group';
 import icon from '../../common/helpers/icon';
 import PermissionGrid from './PermissionGrid';
+import AdminPage from './AdminPage';
 
-export default class PermissionsPage extends Page {
-  view() {
-    return (
-      <div className="PermissionsPage">
-        <div className="PermissionsPage-groups">
-          <div className="container">
-            {app.store
-              .all('groups')
-              .filter((group) => [Group.GUEST_ID, Group.MEMBER_ID].indexOf(group.id()) === -1)
-              .map((group) => (
-                <button className="Button Group" onclick={() => app.modal.show(EditGroupModal, { group })}>
-                  {GroupBadge.component({
-                    group,
-                    className: 'Group-icon',
-                    label: null,
-                  })}
-                  <span className="Group-name">{group.namePlural()}</span>
-                </button>
-              ))}
-            <button className="Button Group Group--add" onclick={() => app.modal.show(EditGroupModal)}>
-              {icon('fas fa-plus', { className: 'Group-icon' })}
-              <span className="Group-name">{app.translator.trans('core.admin.permissions.new_group_button')}</span>
+export default class PermissionsPage extends AdminPage {
+  headerInfo() {
+    return {
+      className: 'PermissionsPage',
+      icon: 'fas fa-key',
+      title: app.translator.trans('core.admin.permissions.title'),
+      description: app.translator.trans('core.admin.permissions.description'),
+    };
+  }
+
+  content() {
+    return [
+      <div className="PermissionsPage-groups">
+        {app.store
+          .all('groups')
+          .filter((group) => [Group.GUEST_ID, Group.MEMBER_ID].indexOf(group.id()) === -1)
+          .map((group) => (
+            <button className="Button Group" onclick={() => app.modal.show(EditGroupModal, { group })}>
+              {GroupBadge.component({
+                group,
+                className: 'Group-icon',
+                label: null,
+              })}
+              <span className="Group-name">{group.namePlural()}</span>
             </button>
-          </div>
-        </div>
+          ))}
+        <button className="Button Group Group--add" onclick={() => app.modal.show(EditGroupModal)}>
+          {icon('fas fa-plus', { className: 'Group-icon' })}
+          <span className="Group-name">{app.translator.trans('core.admin.permissions.new_group_button')}</span>
+        </button>
+      </div>,
 
-        <div className="PermissionsPage-permissions">
-          <div className="container">{PermissionGrid.component()}</div>
-        </div>
-      </div>
-    );
+      <div className="PermissionsPage-permissions">{PermissionGrid.component()}</div>,
+    ];
   }
 }

js/src/admin/index.js

@@ -1,17 +1,13 @@
-import AdminApplication from './AdminApplication';
-
-const app = new AdminApplication();
-
-// Backwards compatibility
-window.app = app;
+import app from './app';
 
 export { app };
 
 // Export public API
 
 // Export compat API
-import compat from './compat';
+import compatObj from './compat';
+import proxifyCompat from '../common/utils/proxifyCompat';
 
-compat.app = app;
+compatObj.app = app;
 
-export { compat };
+export const compat = proxifyCompat(compatObj, 'admin');

js/src/admin/resolvers/ExtensionPageResolver.ts

@@ -0,0 +1,19 @@
+import DefaultResolver from '../../common/resolvers/DefaultResolver';
+
+/**
+ * A custom route resolver for ExtensionPage that generates handles routes
+ * to default extension pages or a page provided by an extension.
+ */
+export default class ExtensionPageResolver extends DefaultResolver {
+  static extension: string | null = null;
+
+  onmatch(args, requestedPath, route) {
+    const extensionPage = app.extensionData.getPage(args.id);
+
+    if (extensionPage) {
+      return extensionPage;
+    }
+
+    return super.onmatch(args, requestedPath, route);
+  }
+}

js/src/admin/routes.js

@@ -2,8 +2,9 @@ import DashboardPage from './components/DashboardPage';
 import BasicsPage from './components/BasicsPage';
 import PermissionsPage from './components/PermissionsPage';
 import AppearancePage from './components/AppearancePage';
-import ExtensionsPage from './components/ExtensionsPage';
 import MailPage from './components/MailPage';
+import ExtensionPage from './components/ExtensionPage';
+import ExtensionPageResolver from './resolvers/ExtensionPageResolver';
 
 /**
  * The `routes` initializer defines the forum app's routes.
@@ -16,7 +17,7 @@ export default function (app) {
     basics: { path: '/basics', component: BasicsPage },
     permissions: { path: '/permissions', component: PermissionsPage },
     appearance: { path: '/appearance', component: AppearancePage },
-    extensions: { path: '/extensions', component: ExtensionsPage },
     mail: { path: '/mail', component: MailPage },
+    extension: { path: '/extension/:id', component: ExtensionPage, resolverClass: ExtensionPageResolver },
   };
 }

js/src/admin/utils/ExtensionData.js

@@ -0,0 +1,177 @@
+import ItemList from '../../common/utils/ItemList';
+
+export default class ExtensionData {
+  constructor() {
+    this.data = {};
+    this.currentExtension = null;
+  }
+
+  /**
+   * This function simply takes the extension id
+   *
+   * @example
+   * app.extensionData.load('flarum-tags')
+   *
+   * flarum/flags -> flarum-flags | acme/extension -> acme-extension
+   *
+   * @param extension
+   */
+  for(extension) {
+    this.currentExtension = extension;
+    this.data[extension] = this.data[extension] || {};
+
+    return this;
+  }
+
+  /**
+   * This function registers your settings with Flarum
+   *
+   * It takes either a settings object or a callback.
+   *
+   * @example
+   *
+   * .registerSetting({
+   *   setting: 'flarum-flags.guidelines_url',
+   *   type: 'text', // This will be inputted into the input tag for the setting (text/number/etc)
+   *   label: app.translator.trans('flarum-flags.admin.settings.guidelines_url_label')
+   * }, 15) // priority is optional (ItemList)
+   *
+   *
+   * @param content
+   * @param priority
+   * @returns {ExtensionData}
+   */
+  registerSetting(content, priority = 0) {
+    this.data[this.currentExtension].settings = this.data[this.currentExtension].settings || new ItemList();
+
+    // Callbacks can be passed in instead of settings to display custom content.
+    // By default, they will be added with the `null` key, since they don't have a `.setting` attr.
+    // To support multiple such items for one extension, we assign a random ID.
+    // 36 is arbitrary length, but makes collisions very unlikely.
+    if (typeof content === 'function') {
+      content.setting = Math.random().toString(36);
+    }
+
+    this.data[this.currentExtension].settings.add(content.setting, content, priority);
+
+    return this;
+  }
+
+  /**
+   * This function registers your permission with Flarum
+   *
+   * @example
+   *
+   * .registerPermission('permissions', {
+   *     icon: 'fas fa-flag',
+   *     label: app.translator.trans('flarum-flags.admin.permissions.view_flags_label'),
+   *     permission: 'discussion.viewFlags'
+   * }, 'moderate', 65)
+   *
+   * @param content
+   * @param permissionType
+   * @param priority
+   * @returns {ExtensionData}
+   */
+  registerPermission(content, permissionType = null, priority = 0) {
+    this.data[this.currentExtension].permissions = this.data[this.currentExtension].permissions || {};
+
+    if (!this.data[this.currentExtension].permissions[permissionType]) {
+      this.data[this.currentExtension].permissions[permissionType] = new ItemList();
+    }
+
+    this.data[this.currentExtension].permissions[permissionType].add(content.permission, content, priority);
+
+    return this;
+  }
+
+  /**
+   * Replace the default extension page with a custom component.
+   * This component would typically extend ExtensionPage
+   *
+   * @param component
+   * @returns {ExtensionData}
+   */
+  registerPage(component) {
+    this.data[this.currentExtension].page = component;
+
+    return this;
+  }
+
+  /**
+   * Get an extension's registered settings
+   *
+   * @param extensionId
+   * @returns {boolean|*}
+   */
+  getSettings(extensionId) {
+    if (this.data[extensionId] && this.data[extensionId].settings) {
+      return this.data[extensionId].settings.toArray();
+    }
+
+    return false;
+  }
+
+  /**
+   *
+   * Get an ItemList of all extensions' registered permissions
+   *
+   * @param extension
+   * @param type
+   * @returns {ItemList}
+   */
+  getAllExtensionPermissions(type) {
+    const items = new ItemList();
+
+    Object.keys(this.data).map((extension) => {
+      if (this.extensionHasPermissions(extension) && this.data[extension].permissions[type]) {
+        items.merge(this.data[extension].permissions[type]);
+      }
+    });
+
+    return items;
+  }
+
+  /**
+   * Get a singular extension's registered permissions
+   *
+   * @param extension
+   * @param type
+   * @returns {boolean|*}
+   */
+  getExtensionPermissions(extension, type) {
+    if (this.extensionHasPermissions(extension) && this.data[extension].permissions[type]) {
+      return this.data[extension].permissions[type];
+    }
+
+    return new ItemList();
+  }
+
+  /**
+   * Checks whether a given extension has registered permissions.
+   *
+   * @param extension
+   * @returns {boolean}
+   */
+  extensionHasPermissions(extension) {
+    if (this.data[extension] && this.data[extension].permissions) {
+      return true;
+    }
+
+    return false;
+  }
+
+  /**
+   * Returns an extension's custom page component if it exists.
+   *
+   * @param extension
+   * @returns {boolean|*}
+   */
+  getPage(extension) {
+    if (this.data[extension]) {
+      return this.data[extension].page;
+    }
+
+    return false;
+  }
+}

js/src/admin/utils/getCategorizedExtensions.js

@@ -0,0 +1,25 @@
+export default function getCategorizedExtensions() {
+  let extensions = {};
+
+  Object.keys(app.data.extensions).map((id) => {
+    const extension = app.data.extensions[id];
+    let category = extension.extra['flarum-extension'].category;
+
+    // Wrap languages packs into new system
+    if (extension.extra['flarum-locale']) {
+      category = 'language';
+    }
+
+    if (category in app.extensionCategories) {
+      extensions[category] = extensions[category] || [];
+
+      extensions[category].push(extension);
+    } else {
+      extensions.feature = extensions.feature || [];
+
+      extensions.feature.push(extension);
+    }
+  });
+
+  return extensions;
+}

js/src/admin/utils/isExtensionEnabled.js

@@ -0,0 +1,5 @@
+export default function isExtensionEnabled(name) {
+  const enabled = JSON.parse(app.data.settings.extensions_enabled);
+
+  return enabled.includes(name);
+}

js/src/common/Application.js

@@ -159,6 +159,8 @@ export default class Application {
   title = '';
   titleCount = 0;
 
+  initialRoute;
+
   load(payload) {
     this.data = payload;
     this.translator.locale = payload.locale;
@@ -174,6 +176,8 @@ export default class Application {
     this.session = new Session(this.store.getById('users', this.data.session.userId), this.data.session.csrfToken);
 
     this.mount();
+
+    this.initialRoute = window.location.href;
   }
 
   bootExtensions(extensions) {
@@ -226,7 +230,8 @@ export default class Application {
    * @public
    */
   preloadedApiDocument() {
-    if (this.data.apiDocument) {
+    // If the URL has changed, the preloaded Api document is invalid.
+    if (this.data.apiDocument && window.location.href === this.initialRoute) {
       const results = this.store.pushPayload(this.data.apiDocument);
 
       this.data.apiDocument = null;
@@ -270,7 +275,7 @@ export default class Application {
 
   updateTitle() {
     const count = this.titleCount ? `(${this.titleCount}) ` : '';
-    const pageTitleWithSeparator = this.title && m.route.get() !== '/' ? this.title + ' - ' : '';
+    const pageTitleWithSeparator = this.title && m.route.get() !== this.forum.attribute('basePath') + '/' ? this.title + ' - ' : '';
     const title = this.forum.attribute('title');
     document.title = count + pageTitleWithSeparator + title;
   }

js/src/common/Component.ts

@@ -1,8 +1,5 @@
 import * as Mithril from 'mithril';
 
-let deprecatedPropsWarned = false;
-let deprecatedInitPropsWarned = false;
-
 export interface ComponentAttrs extends Mithril.Attributes {}
 
 /**
@@ -80,12 +77,12 @@ export default abstract class Component<T extends ComponentAttrs = ComponentAttr
    * containing all of the `li` elements inside the DOM element of this
    * component.
    *
-   * @param {String} [selector] a jQuery-compatible selector string
-   * @returns {jQuery} the jQuery object for the DOM node
+   * @param [selector] a jQuery-compatible selector string
+   * @returns the jQuery object for the DOM node
    * @final
    */
-  protected $(selector) {
-    const $element = $(this.element);
+  protected $(selector: string): JQuery {
+    const $element = $(this.element) as JQuery<HTMLElement>;
 
     return selector ? $element.find(selector) : $element;
   }
@@ -97,7 +94,7 @@ export default abstract class Component<T extends ComponentAttrs = ComponentAttr
    * @see https://mithril.js.org/hyperscript.html#mselector,-attributes,-children
    */
   static component(attrs = {}, children = null): Mithril.Vnode {
-    const componentAttrs = Object.assign({}, attrs);
+    const componentAttrs = Object.assign({}, attrs) as Record<string, unknown>;
 
     return m(this as any, componentAttrs, children);
   }
@@ -131,38 +128,5 @@ export default abstract class Component<T extends ComponentAttrs = ComponentAttr
    *
    * This can be used to assign default values for missing, optional attrs.
    */
-  protected static initAttrs<T>(attrs: T): void {
-    // Deprecated, part of Mithril 2 BC layer
-    if ('initProps' in this && !deprecatedInitPropsWarned) {
-      deprecatedInitPropsWarned = true;
-      console.warn('initProps is deprecated, please use initAttrs instead.');
-      (this as any).initProps(attrs);
-    }
-  }
-
-  // BEGIN DEPRECATED MITHRIL 2 BC LAYER
-
-  /**
-   * The attributes passed into the component.
-   *
-   * @see https://mithril.js.org/components.html#passing-data-to-components
-   *
-   * @deprecated, use attrs instead.
-   */
-  get props() {
-    if (!deprecatedPropsWarned) {
-      deprecatedPropsWarned = true;
-      console.warn('this.props is deprecated, please use this.attrs instead.');
-    }
-    return this.attrs;
-  }
-  set props(props) {
-    if (!deprecatedPropsWarned) {
-      deprecatedPropsWarned = true;
-      console.warn('this.props is deprecated, please use this.attrs instead.');
-    }
-    this.attrs = props;
-  }
-
-  // END DEPRECATED MITHRIL 2 BC LAYER
+  protected static initAttrs<T>(attrs: T): void {}
 }

js/src/common/compat.js

@@ -1,6 +1,7 @@
 import * as extend from './extend';
 import Session from './Session';
 import Store from './Store';
+import BasicEditorDriver from './utils/BasicEditorDriver';
 import evented from './utils/evented';
 import liveHumanTimes from './utils/liveHumanTimes';
 import ItemList from './utils/ItemList';
@@ -19,8 +20,8 @@ import extract from './utils/extract';
 import ScrollListener from './utils/ScrollListener';
 import stringToColor from './utils/stringToColor';
 import subclassOf from './utils/subclassOf';
-import SuperTextarea from './utils/SuperTextarea';
 import patchMithril from './utils/patchMithril';
+import proxifyCompat from './utils/proxifyCompat';
 import classList from './utils/classList';
 import extractText from './utils/extractText';
 import formatNumber from './utils/formatNumber';
@@ -56,6 +57,8 @@ import ModalManager from './components/ModalManager';
 import Button from './components/Button';
 import Modal from './components/Modal';
 import GroupBadge from './components/GroupBadge';
+import TextEditor from './components/TextEditor';
+import TextEditorButton from './components/TextEditorButton';
 import Model from './Model';
 import Application from './Application';
 import fullTime from './helpers/fullTime';
@@ -74,6 +77,7 @@ export default {
   extend: extend,
   Session: Session,
   Store: Store,
+  'utils/BasicEditorDriver': BasicEditorDriver,
   'utils/evented': evented,
   'utils/liveHumanTimes': liveHumanTimes,
   'utils/ItemList': ItemList,
@@ -91,9 +95,9 @@ export default {
   'utils/stringToColor': stringToColor,
   'utils/Stream': Stream,
   'utils/subclassOf': subclassOf,
-  'utils/SuperTextarea': SuperTextarea,
   'utils/setRouteWithForcedRefresh': setRouteWithForcedRefresh,
   'utils/patchMithril': patchMithril,
+  'utils/proxifyCompat': proxifyCompat,
   'utils/classList': classList,
   'utils/extractText': extractText,
   'utils/formatNumber': formatNumber,
@@ -130,6 +134,8 @@ export default {
   'components/Button': Button,
   'components/Modal': Modal,
   'components/GroupBadge': GroupBadge,
+  'components/TextEditor': TextEditor,
+  'components/TextEditorButton': TextEditorButton,
   Model: Model,
   Application: Application,
   'helpers/fullTime': fullTime,

js/src/common/components/Button.js

@@ -35,6 +35,11 @@ export default class Button extends Component {
       attrs['aria-label'] = attrs.title;
     }
 
+    // If given a translation object, extract the text.
+    if (typeof attrs.title === 'object') {
+      attrs.title = extractText(attrs.title);
+    }
+
     // If nothing else is provided, we use the textual button content as tooltip
     if (!attrs.title && vnode.children) {
       attrs.title = extractText(vnode.children);
@@ -64,7 +69,7 @@ export default class Button extends Component {
     return [
       iconName && iconName !== true ? icon(iconName, { className: 'Button-icon' }) : '',
       children ? <span className="Button-label">{children}</span> : '',
-      this.attrs.loading ? <LoadingIndicator size="tiny" className="LoadingIndicator--inline" /> : '',
+      this.attrs.loading ? <LoadingIndicator size="small" display="inline" /> : '',
     ];
   }
 }

js/src/common/components/Checkbox.js

@@ -46,7 +46,7 @@ export default class Checkbox extends Component {
    * @protected
    */
   getDisplay() {
-    return this.attrs.loading ? <LoadingIndicator size="tiny" /> : icon(this.attrs.state ? 'fas fa-check' : 'fas fa-times');
+    return this.attrs.loading ? <LoadingIndicator display="unset" size="small" /> : icon(this.attrs.state ? 'fas fa-check' : 'fas fa-times');
   }
 
   /**

js/src/common/components/Dropdown.js

@@ -13,6 +13,7 @@ import listItems from '../helpers/listItems';
  * - `icon` The name of an icon to show in the dropdown toggle button.
  * - `caretIcon` The name of an icon to show on the right of the button.
  * - `label` The label of the dropdown toggle button. Defaults to 'Controls'.
+ * - `accessibleToggleLabel` The label used to describe the dropdown toggle button to assistive readers. Defaults to 'Toggle dropdown menu'.
  * - `onhide`
  * - `onshow`
  *
@@ -25,6 +26,7 @@ export default class Dropdown extends Component {
     attrs.menuClassName = attrs.menuClassName || '';
     attrs.label = attrs.label || '';
     attrs.caretIcon = typeof attrs.caretIcon !== 'undefined' ? attrs.caretIcon : 'fas fa-caret-down';
+    attrs.accessibleToggleLabel = attrs.accessibleToggleLabel || app.translator.trans('core.lib.dropdown.toggle_dropdown_accessible_label');
   }
 
   oninit(vnode) {
@@ -92,7 +94,13 @@ export default class Dropdown extends Component {
    */
   getButton(children) {
     return (
-      <button className={'Dropdown-toggle ' + this.attrs.buttonClassName} data-toggle="dropdown" onclick={this.attrs.onclick}>
+      <button
+        className={'Dropdown-toggle ' + this.attrs.buttonClassName}
+        aria-haspopup="menu"
+        aria-label={this.attrs.accessibleToggleLabel}
+        data-toggle="dropdown"
+        onclick={this.attrs.onclick}
+      >
         {this.getButtonContent(children)}
       </button>
     );

js/src/common/components/LoadingIndicator.js

@@ -1,43 +0,0 @@
-import Component from '../Component';
-import { Spinner } from 'spin.js';
-
-/**
- * The `LoadingIndicator` component displays a loading spinner with spin.js.
- *
- * ### Attrs
- *
- * - `size` The spin.js size preset to use. Defaults to 'small'.
- *
- * All other attrs will be assigned as attributes on the DOM element.
- */
-export default class LoadingIndicator extends Component {
-  view() {
-    const attrs = Object.assign({}, this.attrs);
-
-    attrs.className = 'LoadingIndicator ' + (attrs.className || '');
-    delete attrs.size;
-
-    return <div {...attrs}>{m.trust('&nbsp;')}</div>;
-  }
-
-  oncreate(vnode) {
-    super.oncreate(vnode);
-
-    const options = { zIndex: 'auto', color: this.$().css('color') };
-
-    switch (this.attrs.size) {
-      case 'large':
-        Object.assign(options, { lines: 10, length: 8, width: 4, radius: 8 });
-        break;
-
-      case 'tiny':
-        Object.assign(options, { lines: 8, length: 2, width: 2, radius: 3 });
-        break;
-
-      default:
-        Object.assign(options, { lines: 8, length: 4, width: 3, radius: 5 });
-    }
-
-    new Spinner(options).spin(this.element);
-  }
-}

js/src/common/components/LoadingIndicator.tsx

@@ -0,0 +1,80 @@
+import Component, { ComponentAttrs } from '../Component';
+import classList from '../utils/classList';
+
+export interface LoadingIndicatorAttrs extends ComponentAttrs {
+  /**
+   * Custom classes fro the loading indicator's container.
+   */
+  className?: string;
+  /**
+   * Custom classes for the loading indicator's container.
+   */
+  containerClassName?: string;
+  /**
+   * Optional size to specify for the loading indicator.
+   */
+  size?: 'large' | 'medium' | 'small';
+  /**
+   * Optional attributes to apply to the loading indicator's container.
+   */
+  containerAttrs?: Partial<ComponentAttrs>;
+  /**
+   * Display type of the spinner.
+   *
+   * @default 'block'
+   */
+  display?: 'block' | 'inline' | 'unset';
+}
+
+/**
+ * The `LoadingIndicator` component displays a simple CSS-based loading spinner.
+ *
+ * To set a custom color, use the CSS `color` property.
+ *
+ * To increase spacing around the spinner, use the CSS `height` property on the
+ * spinner's **container**. Setting the `display` attribute to `block` will set
+ * a height of `100px` by default.
+ *
+ * To apply a custom size to the loading indicator, set the `--size` and
+ * `--thickness` CSS custom properties on the loading indicator container.
+ *
+ * If you *really* want to change how this looks as part of your custom theme,
+ * you can override the `border-radius` and `border` then set either a
+ * background image, or use `content: "\<glyph>"` (e.g. `content: "\f1ce"`)
+ * and `font-family: 'Font Awesome 5 Free'` to set an FA icon if you'd rather.
+ *
+ * ### Attrs
+ *
+ * - `containerClassName` Class name(s) to apply to the indicator's parent
+ * - `className` Class name(s) to apply to the indicator itself
+ * - `display` Determines how the spinner should be displayed (`inline`, `block` (default) or `unset`)
+ * - `size` Size of the loading indicator (`small`, `medium` or `large`)
+ * - `containerAttrs` Optional attrs to be applied to the container DOM element
+ *
+ * All other attrs will be assigned as attributes on the DOM element.
+ */
+export default class LoadingIndicator extends Component<LoadingIndicatorAttrs> {
+  view() {
+    const { display = 'block', size = 'medium', containerClassName, className, ...attrs } = this.attrs;
+
+    const completeClassName = classList('LoadingIndicator', className);
+    const completeContainerClassName = classList(
+      'LoadingIndicator-container',
+      display !== 'unset' && `LoadingIndicator-container--${display}`,
+      size && `LoadingIndicator-container--${size}`,
+      containerClassName
+    );
+
+    return (
+      <div
+        aria-label={app.translator.trans('core.lib.loading_indicator.accessible_label')}
+        role="status"
+        {...attrs.containerAttrs}
+        data-size={size}
+        className={completeContainerClassName}
+      >
+        <div aria-hidden className={completeClassName} {...attrs} />
+      </div>
+    );
+  }
+}

js/src/common/components/Page.js

@@ -29,6 +29,13 @@ export default class Page extends Component {
      * @type {Boolean}
      */
     this.scrollTopOnCreate = true;
+
+    /**
+     * Whether the browser should restore scroll state on refreshes.
+     *
+     * @type {Boolean}
+     */
+    this.useBrowserScrollRestoration = true;
   }
 
   oncreate(vnode) {
@@ -41,6 +48,10 @@ export default class Page extends Component {
     if (this.scrollTopOnCreate) {
       $(window).scrollTop(0);
     }
+
+    if ('scrollRestoration' in history) {
+      history.scrollRestoration = this.useBrowserScrollRestoration ? 'auto' : 'manual';
+    }
   }
 
   onremove() {

js/src/common/components/SelectDropdown.js

@@ -12,6 +12,9 @@ import icon from '../helpers/icon';
 function isActive(vnode) {
   const tag = vnode.tag;
 
+  // Allow non-selectable dividers/headers to be added.
+  if (typeof tag === 'string' && tag !== 'a' && tag !== 'button') return false;
+
   if ('initAttrs' in tag) {
     tag.initAttrs(vnode.attrs);
   }

js/src/common/components/SplitDropdown.js

@@ -24,7 +24,12 @@ export default class SplitDropdown extends Dropdown {
 
     return [
       Button.component(buttonAttrs, firstChild.children),
-      <button className={'Dropdown-toggle Button Button--icon ' + this.attrs.buttonClassName} data-toggle="dropdown">
+      <button
+        className={'Dropdown-toggle Button Button--icon ' + this.attrs.buttonClassName}
+        aria-haspopup="menu"
+        aria-label={this.attrs.accessibleToggleLabel}
+        data-toggle="dropdown"
+      >
         {icon(this.attrs.icon, { className: 'Button-icon' })}
         {icon('fas fa-caret-down', { className: 'Button-caret' })}
       </button>,

js/src/common/components/TextEditor.js

@@ -1,8 +1,9 @@
-import Component from '../../common/Component';
-import ItemList from '../../common/utils/ItemList';
-import SuperTextarea from '../../common/utils/SuperTextarea';
-import listItems from '../../common/helpers/listItems';
-import Button from '../../common/components/Button';
+import Component from '../Component';
+import ItemList from '../utils/ItemList';
+import listItems from '../helpers/listItems';
+import Button from './Button';
+
+import BasicEditorDriver from '../utils/BasicEditorDriver';
 
 /**
  * The `TextEditor` component displays a textarea with controls, including a
@@ -22,25 +23,22 @@ export default class TextEditor extends Component {
     super.oninit(vnode);
 
     /**
-     * The value of the textarea.
+     * The value of the editor.
      *
      * @type {String}
      */
     this.value = this.attrs.value || '';
+
+    /**
+     * Whether the editor is disabled.
+     */
+    this.disabled = !!this.attrs.disabled;
   }
 
   view() {
     return (
       <div className="TextEditor">
-        <textarea
-          className="FormControl Composer-flexible"
-          oninput={(e) => {
-            this.oninput(e.target.value, e);
-          }}
-          placeholder={this.attrs.placeholder || ''}
-          disabled={!!this.attrs.disabled}
-          value={this.value}
-        />
+        <div className="TextEditor-editorContainer"></div>
 
         <ul className="TextEditor-controls Composer-footer">
           {listItems(this.controlItems().toArray())}
@@ -53,15 +51,35 @@ export default class TextEditor extends Component {
   oncreate(vnode) {
     super.oncreate(vnode);
 
-    const handler = () => {
-      this.onsubmit();
-      m.redraw();
+    this.attrs.composer.editor = this.buildEditor(this.$('.TextEditor-editorContainer')[0]);
+  }
+
+  onupdate() {
+    const newDisabled = !!this.attrs.disabled;
+
+    if (this.disabled !== newDisabled) {
+      this.disabled = newDisabled;
+      this.attrs.composer.editor.disabled(newDisabled);
+    }
+  }
+
+  buildEditorParams() {
+    return {
+      classNames: ['FormControl', 'Composer-flexible', 'TextEditor-editor'],
+      disabled: this.disabled,
+      placeholder: this.attrs.placeholder || '',
+      value: this.value,
+      oninput: this.oninput.bind(this),
+      inputListeners: [],
+      onsubmit: () => {
+        this.onsubmit();
+        m.redraw();
+      },
     };
+  }
 
-    this.$('textarea').bind('keydown', 'meta+return', handler);
-    this.$('textarea').bind('keydown', 'ctrl+return', handler);
-
-    this.attrs.composer.editor = new SuperTextarea(this.$('textarea')[0]);
+  buildEditor(dom) {
+    return new BasicEditorDriver(dom, this.buildEditorParams());
   }
 
   /**
@@ -115,12 +133,10 @@ export default class TextEditor extends Component {
    *
    * @param {String} value
    */
-  oninput(value, e) {
+  oninput(value) {
     this.value = value;
 
     this.attrs.onchange(this.value);
-
-    e.redraw = false;
   }
 
   /**

js/src/common/components/TextEditorButton.js

@@ -1,4 +1,4 @@
-import Button from '../../common/components/Button';
+import Button from './Button';
 
 /**
  * The `TextEditorButton` component displays a button suitable for the text

js/src/common/helpers/avatar.tsx

@@ -1,26 +1,28 @@
+import * as Mithril from 'mithril';
+import User from '../models/User';
+
 /**
  * The `avatar` helper displays a user's avatar.
  *
- * @param {User} user
- * @param {Object} attrs Attributes to apply to the avatar element
- * @return {Object}
+ * @param user
+ * @param attrs Attributes to apply to the avatar element
  */
-export default function avatar(user, attrs = {}) {
+export default function avatar(user: User, attrs: Object = {}): Mithril.Vnode {
   attrs.className = 'Avatar ' + (attrs.className || '');
-  let content = '';
+  let content: string = '';
 
   // If the `title` attribute is set to null or false, we don't want to give the
   // avatar a title. On the other hand, if it hasn't been given at all, we can
   // safely default it to the user's username.
-  const hasTitle = attrs.title === 'undefined' || attrs.title;
+  const hasTitle: boolean | string = attrs.title === 'undefined' || attrs.title;
   if (!hasTitle) delete attrs.title;
 
   // If a user has been passed, then we will set up an avatar using their
   // uploaded image, or the first letter of their username if they haven't
   // uploaded one.
   if (user) {
-    const username = user.displayName() || '?';
-    const avatarUrl = user.avatarUrl();
+    const username: string = user.displayName() || '?';
+    const avatarUrl: string = user.avatarUrl();
 
     if (hasTitle) attrs.title = attrs.title || username;
 

js/src/common/helpers/highlight.tsx

@@ -1,16 +1,16 @@
+import * as Mithril from 'mithril';
 import { truncate } from '../utils/string';
 
 /**
  * The `highlight` helper searches for a word phrase in a string, and wraps
  * matches with the <mark> tag.
  *
- * @param {String} string The string to highlight.
- * @param {String|RegExp} phrase The word or words to highlight.
- * @param {Integer} [length] The number of characters to truncate the string to.
+ * @param string The string to highlight.
+ * @param phrase The word or words to highlight.
+ * @param [length] The number of characters to truncate the string to.
  *     The string will be truncated surrounding the first match.
- * @return {Object}
  */
-export default function highlight(string, phrase, length) {
+export default function highlight(string: string, phrase: string | RegExp, length?: number): Mithril.Vnode<any, any> | string {
   if (!phrase && !length) return string;
 
   // Convert the word phrase into a global regular expression (if it isn't

js/src/common/helpers/listItems.tsx

@@ -1,15 +1,16 @@
+import * as Mithril from 'mithril';
 import Separator from '../components/Separator';
 import classList from '../utils/classList';
 
-function isSeparator(item) {
+function isSeparator(item): boolean {
   return item.tag === Separator;
 }
 
-function withoutUnnecessarySeparators(items) {
+function withoutUnnecessarySeparators(items: Array<Mithril.Vnode>): Array<Mithril.Vnode> {
   const newItems = [];
   let prevItem;
 
-  items.filter(Boolean).forEach((item, i) => {
+  items.filter(Boolean).forEach((item: Mithril.Vnode, i: number) => {
     if (!isSeparator(item) || (prevItem && !isSeparator(prevItem) && i !== items.length - 1)) {
       prevItem = item;
       newItems.push(item);
@@ -22,14 +23,11 @@ function withoutUnnecessarySeparators(items) {
 /**
  * The `listItems` helper wraps a collection of components in <li> tags,
  * stripping out any unnecessary `Separator` components.
- *
- * @param {*} items
- * @return {Array}
  */
-export default function listItems(items) {
+export default function listItems(items: Mithril.Vnode | Array<Mithril.Vnode>): Array<Mithril.Vnode> {
   if (!(items instanceof Array)) items = [items];
 
-  return withoutUnnecessarySeparators(items).map((item) => {
+  return withoutUnnecessarySeparators(items).map((item: Mithril.Vnode) => {
     const isListItem = item.tag && item.tag.isListItem;
     const active = item.tag && item.tag.isActive && item.tag.isActive(item.attrs);
     const className = (item.attrs && item.attrs.itemClassName) || item.itemClassName;
@@ -40,7 +38,7 @@ export default function listItems(items) {
       item.key = item.attrs.key;
     }
 
-    const node = isListItem ? (
+    const node: Mithril.Vnode = isListItem ? (
       item
     ) : (
       <li

js/src/common/helpers/userOnline.tsx

@@ -1,12 +1,11 @@
+import * as Mithril from 'mithril';
+import User from '../models/User';
 import icon from './icon';
 
 /**
  * The `useronline` helper displays a green circle if the user is online
- *
- * @param {User} user
- * @return {Object}
  */
-export default function userOnline(user) {
+export default function userOnline(user: User): Mithril.Vnode {
   if (user.lastSeenAt() && user.isOnline()) {
     return <span className="UserOnline">{icon('fas fa-circle')}</span>;
   }

js/src/common/helpers/username.tsx

@@ -1,11 +1,11 @@
+import * as Mithril from 'mithril';
+import User from '../models/User';
+
 /**
  * The `username` helper displays a user's username in a <span class="username">
  * tag. If the user doesn't exist, the username will be displayed as [deleted].
- *
- * @param {User} user
- * @return {Object}
  */
-export default function username(user) {
+export default function username(user: User): Mithril.Vnode {
   const name = (user && user.displayName()) || app.translator.trans('core.lib.username.deleted_text');
 
   return <span className="username">{name}</span>;

js/src/common/index.js

@@ -1,7 +1,8 @@
-import 'expose-loader?$!expose-loader?jQuery!jquery';
-import 'expose-loader?m!mithril';
-import 'expose-loader?moment!expose-loader?dayjs!dayjs';
-import 'expose-loader?m.bidi!m.attrs.bidi';
+// Expose jQuery, mithril and dayjs to the window browser object
+import 'expose-loader?exposes[]=$&exposes[]=jQuery!jquery';
+import 'expose-loader?exposes=m!mithril';
+import 'expose-loader?exposes=dayjs!dayjs';
+
 import 'bootstrap/js/affix';
 import 'bootstrap/js/dropdown';
 import 'bootstrap/js/modal';

js/src/common/models/User.js

@@ -10,6 +10,7 @@ export default class User extends Model {}
 
 Object.assign(User.prototype, {
   username: Model.attribute('username'),
+  slug: Model.attribute('slug'),
   displayName: Model.attribute('displayName'),
   email: Model.attribute('email'),
   isEmailConfirmed: Model.attribute('isEmailConfirmed'),
@@ -29,6 +30,8 @@ Object.assign(User.prototype, {
   commentCount: Model.attribute('commentCount'),
 
   canEdit: Model.attribute('canEdit'),
+  canEditCredentials: Model.attribute('canEditCredentials'),
+  canEditGroups: Model.attribute('canEditGroups'),
   canDelete: Model.attribute('canDelete'),
 
   avatarColor: null,

js/src/common/utils/BasicEditorDriver.ts

@@ -0,0 +1,124 @@
+import getCaretCoordinates from 'textarea-caret';
+import EditorDriverInterface, { EditorDriverParams } from './EditorDriverInterface';
+
+export default class BasicEditorDriver implements EditorDriverInterface {
+  el: HTMLTextAreaElement;
+
+  constructor(dom: HTMLElement, params: EditorDriverParams) {
+    this.el = document.createElement('textarea');
+
+    this.build(dom, params);
+  }
+
+  build(dom: HTMLElement, params: EditorDriverParams) {
+    this.el.className = params.classNames.join(' ');
+    this.el.disabled = params.disabled;
+    this.el.placeholder = params.placeholder;
+    this.el.value = params.value;
+
+    const callInputListeners = (e) => {
+      params.inputListeners.forEach((listener) => {
+        listener();
+      });
+
+      e.redraw = false;
+    };
+
+    this.el.oninput = (e) => {
+      params.oninput(this.el.value);
+      callInputListeners(e);
+    };
+
+    this.el.onclick = callInputListeners;
+    this.el.onkeyup = callInputListeners;
+
+    this.el.addEventListener('keydown', function (e) {
+      if ((e.metaKey || e.ctrlKey) && e.key === 'Enter') {
+        params.onsubmit();
+      }
+    });
+
+    dom.append(this.el);
+  }
+
+  protected setValue(value: string) {
+    $(this.el).val(value).trigger('input');
+
+    this.el.dispatchEvent(new CustomEvent('input', { bubbles: true, cancelable: true }));
+  }
+
+  moveCursorTo(position: number) {
+    this.setSelectionRange(position, position);
+  }
+
+  getSelectionRange(): Array<number> {
+    return [this.el.selectionStart, this.el.selectionEnd];
+  }
+
+  getLastNChars(n: number): string {
+    const value = this.el.value;
+
+    return value.slice(Math.max(0, this.el.selectionStart - n), this.el.selectionStart);
+  }
+
+  insertAtCursor(text: string) {
+    this.insertAt(this.el.selectionStart, text);
+  }
+
+  insertAt(pos: number, text: string) {
+    this.insertBetween(pos, pos, text);
+  }
+
+  insertBetween(start: number, end: number, text: string) {
+    const value = this.el.value;
+
+    const before = value.slice(0, start);
+    const after = value.slice(end);
+
+    this.setValue(`${before}${text}${after}`);
+
+    // Move the textarea cursor to the end of the content we just inserted.
+    this.moveCursorTo(start + text.length);
+  }
+
+  replaceBeforeCursor(start: number, text: string) {
+    this.insertBetween(start, this.el.selectionStart, text);
+  }
+
+  protected setSelectionRange(start: number, end: number) {
+    this.el.setSelectionRange(start, end);
+    this.focus();
+  }
+
+  getCaretCoordinates(position: number) {
+    const relCoords = getCaretCoordinates(this.el, position);
+
+    return {
+      top: relCoords.top - this.el.scrollTop,
+      left: relCoords.left,
+    };
+  }
+
+  // DOM Interactions
+
+  /**
+   * Set the disabled status of the editor.
+   */
+  disabled(disabled: boolean) {
+    this.el.disabled = disabled;
+  }
+
+  /**
+   * Focus on the editor.
+   */
+  focus() {
+    this.el.focus();
+  }
+
+  /**
+   * Destroy the editor
+   */
+  destroy() {
+    this.el.remove();
+  }
+}

js/src/common/utils/Drawer.js

@@ -31,7 +31,24 @@ export default class Drawer {
    * @public
    */
   hide() {
-    $('#app').removeClass('drawerOpen');
+    /**
+     * As part of hiding the drawer, this function also ensures that the drawer
+     * correctly animates out, while ensuring it is not part of the navigation
+     * tree while off-screen.
+     *
+     * More info: https://github.com/flarum/core/pull/2666#discussion_r595381014
+     */
+
+    const $app = $('#app');
+
+    if (!$app.hasClass('drawerOpen')) return;
+
+    const $drawer = $('#drawer');
+
+    // Used to prevent `visibility: hidden` from breaking the exit animation
+    $drawer.css('visibility', 'visible').one('transitionend', () => $drawer.css('visibility', ''));
+
+    $app.removeClass('drawerOpen');
 
     if (this.$backdrop) this.$backdrop.remove();
   }

js/src/common/utils/EditorDriverInterface.ts

@@ -0,0 +1,105 @@
+export interface EditorDriverParams {
+  /**
+   * An array of HTML class names to apply to the editor's main DOM element.
+   */
+  classNames: string[];
+
+  /**
+   * Whether the editor should be initially disabled.
+   */
+  disabled: boolean;
+
+  /**
+   * An optional placeholder for the editor.
+   */
+  placeholder: string;
+
+  /**
+   * An optional initial value for the editor.
+   */
+  value: string;
+
+  /**
+   * This is separate from inputListeners since the full serialized content will be passed to it.
+   * It is considered private API, and should not be used/modified by extensions not implementing
+   * EditorDriverInterface.
+   */
+  oninput: Function;
+
+  /**
+   * Each of these functions will be called on click, input, and keyup.
+   * No arguments will be passed.
+   */
+  inputListeners: Function[];
+
+  /**
+   * This function will be called if submission is triggered programmatically via keybind.
+   * No arguments should be passed.
+   */
+  onsubmit: Function;
+}
+
+export default interface EditorDriverInterface {
+  /**
+   * Focus the editor and place the cursor at the given position.
+   */
+  moveCursorTo(position: number): void;
+
+  /**
+   * Get the selected range of the editor.
+   */
+  getSelectionRange(): Array<number>;
+
+  /**
+   * Get the last N characters from the current "text block".
+   *
+   * A textarea-based driver would just return the last N characters,
+   * but more advanced implementations might restrict to the current block.
+   *
+   * This is useful for monitoring recent user input to trigger autocomplete.
+   */
+  getLastNChars(n: number): string;
+
+  /**
+   * Insert content into the editor at the position of the cursor.
+   */
+  insertAtCursor(text: string, escape: boolean): void;
+
+  /**
+   * Insert content into the editor at the given position.
+   */
+  insertAt(pos: number, text: string, escape: boolean): void;
+
+  /**
+   * Insert content into the editor between the given positions.
+   *
+   * If the start and end positions are different, any text between them will be
+   * overwritten.
+   */
+  insertBetween(start: number, end: number, text: string, escape: boolean): void;
+
+  /**
+   * Replace existing content from the start to the current cursor position.
+   */
+  replaceBeforeCursor(start: number, text: string, escape: boolean): void;
+
+  /**
+   * Get left and top coordinates of the caret relative to the editor viewport.
+   */
+  getCaretCoordinates(position: number): { left: number; top: number };
+
+  /**
+   * Set the disabled status of the editor.
+   */
+  disabled(disabled: boolean): void;
+
+  /**
+   * Focus on the editor.
+   */
+  focus(): void;
+
+  /**
+   * Destroy the editor
+   */
+  destroy(): void;
+}

js/src/common/utils/SuperTextarea.js

@@ -1,109 +0,0 @@
-/**
- * A textarea wrapper with powerful helpers for text manipulation.
- *
- * This wraps a <textarea> DOM element and allows directly manipulating its text
- * contents and cursor positions.
- *
- * I apologize for the pretentious name. :)
- */
-export default class SuperTextarea {
-  /**
-   * @param {HTMLTextAreaElement} textarea
-   */
-  constructor(textarea) {
-    this.el = textarea;
-    this.$ = $(textarea);
-  }
-
-  /**
-   * Set the value of the text editor.
-   *
-   * @param {String} value
-   */
-  setValue(value) {
-    this.$.val(value).trigger('input');
-
-    this.el.dispatchEvent(new CustomEvent('input', { bubbles: true, cancelable: true }));
-  }
-
-  /**
-   * Focus the textarea and place the cursor at the given index.
-   *
-   * @param {number} position
-   */
-  moveCursorTo(position) {
-    this.setSelectionRange(position, position);
-  }
-
-  /**
-   * Get the selected range of the textarea.
-   *
-   * @return {Array}
-   */
-  getSelectionRange() {
-    return [this.el.selectionStart, this.el.selectionEnd];
-  }
-
-  /**
-   * Insert content into the textarea at the position of the cursor.
-   *
-   * @param {String} text
-   */
-  insertAtCursor(text) {
-    this.insertAt(this.el.selectionStart, text);
-  }
-
-  /**
-   * Insert content into the textarea at the given position.
-   *
-   * @param {number} pos
-   * @param {String} text
-   */
-  insertAt(pos, text) {
-    this.insertBetween(pos, pos, text);
-  }
-
-  /**
-   * Insert content into the textarea between the given positions.
-   *
-   * If the start and end positions are different, any text between them will be
-   * overwritten.
-   *
-   * @param start
-   * @param end
-   * @param text
-   */
-  insertBetween(start, end, text) {
-    const value = this.el.value;
-
-    const before = value.slice(0, start);
-    const after = value.slice(end);
-
-    this.setValue(`${before}${text}${after}`);
-
-    // Move the textarea cursor to the end of the content we just inserted.
-    this.moveCursorTo(start + text.length);
-  }
-
-  /**
-   * Replace existing content from the start to the current cursor position.
-   *
-   * @param start
-   * @param text
-   */
-  replaceBeforeCursor(start, text) {
-    this.insertBetween(start, this.el.selectionStart, text);
-  }
-
-  /**
-   * Set the selected range of the textarea.
-   *
-   * @param {number} start
-   * @param {number} end
-   * @private
-   */
-  setSelectionRange(start, end) {
-    this.el.setSelectionRange(start, end);
-    this.$.focus();
-  }
-}

js/src/common/utils/bidi.js

@@ -0,0 +1,50 @@
+function bidi(node, prop) {
+  var type = node.tag === 'select' ? (node.attrs.multi ? 'multi' : 'select') : node.attrs.type;
+
+  // Setup: bind listeners
+  if (type === 'multi') {
+    node.attrs.onchange = function () {
+      prop(
+        [].slice.call(this.selectedOptions, function (x) {
+          return x.value;
+        })
+      );
+    };
+  } else if (type === 'select') {
+    node.attrs.onchange = function (e) {
+      prop(this.selectedOptions[0].value);
+    };
+  } else if (type === 'checkbox') {
+    node.attrs.onchange = function (e) {
+      prop(this.checked);
+    };
+  } else {
+    node.attrs.onchange = node.attrs.oninput = function (e) {
+      prop(this.value);
+    };
+  }
+
+  if (node.tag === 'select') {
+    node.children.forEach(function (option) {
+      if (option.attrs.value === prop() || option.children[0] === prop()) {
+        option.attrs.selected = true;
+      }
+    });
+  } else if (type === 'checkbox') {
+    node.attrs.checked = prop();
+  } else if (type === 'radio') {
+    node.attrs.checked = prop() === node.attrs.value;
+  } else {
+    node.attrs.value = prop();
+  }
+
+  node.attrs.bidi = null;
+
+  return node;
+}
+
+bidi.view = function (ctrl, node, prop) {
+  return bidi(node, node.attrs.bidi);
+};
+
+export default bidi;

js/src/common/utils/classList.js

@@ -1,26 +0,0 @@
-/**
- * The `classList` utility creates a list of class names by joining an object's
- * keys, but only for values which are truthy.
- *
- * @example
- * classList({ foo: true, bar: false, qux: 'qaz' });
- * // "foo qux"
- *
- * @param {Object} classes
- * @return {String}
- */
-export default function classList(classes) {
-  let classNames;
-
-  if (classes instanceof Array) {
-    classNames = classes.filter((name) => name);
-  } else {
-    classNames = [];
-
-    for (const i in classes) {
-      if (classes[i]) classNames.push(i);
-    }
-  }
-
-  return classNames.join(' ');
-}

js/src/common/utils/classList.ts

@@ -0,0 +1,12 @@
+import clsx from 'clsx';
+
+/**
+ * This util exposes `clsx` to core and extensions as a re-usable utility.
+ *
+ * For full documentation, see `clsx` on GitHub.
+ *
+ * @see https://github.com/lukeed/clsx
+ */
+const classList = clsx;
+
+export default classList;

js/src/common/utils/patchMithril.js

@@ -1,8 +1,4 @@
-import withAttr from './withAttr';
-import Stream from './Stream';
-
-let deprecatedMPropWarned = false;
-let deprecatedMWithAttrWarned = false;
+import bidi from './bidi';
 
 export default function patchMithril(global) {
   const defaultMithril = global.m;
@@ -14,7 +10,7 @@ export default function patchMithril(global) {
 
     // Allows the use of the bidi attr.
     if (node.attrs.bidi) {
-      modifiedMithril.bidi(node, node.attrs.bidi);
+      bidi(node, node.attrs.bidi);
     }
 
     return node;
@@ -22,23 +18,5 @@ export default function patchMithril(global) {
 
   Object.keys(defaultMithril).forEach((key) => (modifiedMithril[key] = defaultMithril[key]));
 
-  // BEGIN DEPRECATED MITHRIL 2 BC LAYER
-  modifiedMithril.prop = function (...args) {
-    if (!deprecatedMPropWarned) {
-      deprecatedMPropWarned = true;
-      console.warn('m.prop() is deprecated, please use the Stream util (flarum/utils/Streams) instead.');
-    }
-    return Stream.bind(this)(...args);
-  };
-
-  modifiedMithril.withAttr = function (...args) {
-    if (!deprecatedMWithAttrWarned) {
-      deprecatedMWithAttrWarned = true;
-      console.warn("m.withAttr() is deprecated, please use flarum's withAttr util (flarum/utils/withAttr) instead.");
-    }
-    return withAttr.bind(this)(...args);
-  };
-  // END DEPRECATED MITHRIL 2 BC LAYER
-
   global.m = modifiedMithril;
 }

js/src/common/utils/proxifyCompat.ts

@@ -0,0 +1,10 @@
+export default (compat: { [key: string]: any }, namespace: string) => {
+  // regex to replace common/ and NAMESPACE/ for core & core extensions
+  // e.g. admin/utils/extract --> utils/extract
+  // e.g. tags/common/utils/sortTags --> tags/utils/sortTags
+  const regex = new RegExp(`(\\w+\\/)?(${namespace}|common)\\/`);
+
+  return new Proxy(compat, {
+    get: (obj, prop: string) => obj[prop] || obj[prop.replace(regex, '$1')],
+  });
+};

js/src/forum/ForumApplication.js

@@ -16,6 +16,7 @@ import NotificationListState from './states/NotificationListState';
 import GlobalSearchState from './states/GlobalSearchState';
 import DiscussionListState from './states/DiscussionListState';
 import ComposerState from './states/ComposerState';
+import isSafariMobile from './utils/isSafariMobile';
 
 export default class ForumApplication extends Application {
   /**
@@ -90,11 +91,6 @@ export default class ForumApplication extends Application {
      * @type {DiscussionListState}
      */
     this.discussions = new DiscussionListState({}, this);
-
-    /**
-     * @deprecated beta 14, remove in beta 15.
-     */
-    this.cache.discussionList = this.discussions;
   }
 
   /**
@@ -143,6 +139,12 @@ export default class ForumApplication extends Application {
         m.redraw();
       }
     });
+
+    if (isSafariMobile()) {
+      $(() => {
+        $('.App').addClass('mobile-safari');
+      });
+    }
   }
 
   /**

js/src/forum/app.ts

@@ -0,0 +1,8 @@
+import Forum from './ForumApplication';
+
+const app = new Forum();
+
+// @ts-ignore
+window.app = app;
+
+export default app;

js/src/forum/compat.js

@@ -16,6 +16,7 @@ import PostStreamState from './states/PostStreamState';
 import SearchState from './states/SearchState';
 import AffixedSidebar from './components/AffixedSidebar';
 import DiscussionPage from './components/DiscussionPage';
+import DiscussionListPane from './components/DiscussionListPane';
 import LogInModal from './components/LogInModal';
 import ComposerBody from './components/ComposerBody';
 import ForgotPasswordModal from './components/ForgotPasswordModal';
@@ -35,8 +36,6 @@ import HeaderSecondary from './components/HeaderSecondary';
 import ComposerButton from './components/ComposerButton';
 import DiscussionList from './components/DiscussionList';
 import ReplyPlaceholder from './components/ReplyPlaceholder';
-import TextEditor from './components/TextEditor';
-import TextEditorButton from './components/TextEditorButton';
 import AvatarEditor from './components/AvatarEditor';
 import Post from './components/Post';
 import SettingsPage from './components/SettingsPage';
@@ -72,6 +71,7 @@ import DiscussionListItem from './components/DiscussionListItem';
 import LoadingPost from './components/LoadingPost';
 import PostsUserPage from './components/PostsUserPage';
 import DiscussionPageResolver from './resolvers/DiscussionPageResolver';
+import BasicEditorDriver from '../common/utils/BasicEditorDriver';
 import routes from './routes';
 import ForumApplication from './ForumApplication';
 
@@ -84,6 +84,7 @@ export default Object.assign(compat, {
   'utils/alertEmailConfirmation': alertEmailConfirmation,
   'utils/UserControls': UserControls,
   'utils/Pane': Pane,
+  'utils/BasicEditorDriver': BasicEditorDriver,
   'states/ComposerState': ComposerState,
   'states/DiscussionListState': DiscussionListState,
   'states/GlobalSearchState': GlobalSearchState,
@@ -92,6 +93,7 @@ export default Object.assign(compat, {
   'states/SearchState': SearchState,
   'components/AffixedSidebar': AffixedSidebar,
   'components/DiscussionPage': DiscussionPage,
+  'components/DiscussionListPane': DiscussionListPane,
   'components/LogInModal': LogInModal,
   'components/ComposerBody': ComposerBody,
   'components/ForgotPasswordModal': ForgotPasswordModal,
@@ -111,8 +113,6 @@ export default Object.assign(compat, {
   'components/ComposerButton': ComposerButton,
   'components/DiscussionList': DiscussionList,
   'components/ReplyPlaceholder': ReplyPlaceholder,
-  'components/TextEditor': TextEditor,
-  'components/TextEditorButton': TextEditorButton,
   'components/AvatarEditor': AvatarEditor,
   'components/Post': Post,
   'components/SettingsPage': SettingsPage,

js/src/forum/components/AvatarEditor.js

@@ -52,7 +52,13 @@ export default class AvatarEditor extends Component {
           ondragend={this.disableDragover.bind(this)}
           ondrop={this.dropUpload.bind(this)}
         >
-          {this.loading ? <LoadingIndicator /> : user.avatarUrl() ? icon('fas fa-pencil-alt') : icon('fas fa-plus-circle')}
+          {this.loading ? (
+            <LoadingIndicator display="unset" size="large" />
+          ) : user.avatarUrl() ? (
+            icon('fas fa-pencil-alt')
+          ) : (
+            icon('fas fa-plus-circle')
+          )}
         </a>
         <ul className="Dropdown-menu Menu">{listItems(this.controlItems().toArray())}</ul>
       </div>

js/src/forum/components/ChangeEmailModal.js

@@ -106,9 +106,8 @@ export default class ChangeEmailModal extends Modal {
       return;
     }
 
-    const oldEmail = app.session.user.email();
-
     this.loading = true;
+    this.alertAttrs = null;
 
     app.session.user
       .save(
@@ -118,7 +117,9 @@ export default class ChangeEmailModal extends Modal {
           meta: { password: this.password() },
         }
       )
-      .then(() => (this.success = true))
+      .then(() => {
+        this.success = true;
+      })
       .catch(() => {})
       .then(this.loaded.bind(this));
   }

js/src/forum/components/Composer.js

@@ -76,13 +76,13 @@ export default class Composer extends Component {
 
     // Whenever any of the inputs inside the composer are have focus, we want to
     // add a class to the composer to draw attention to it.
-    this.$().on('focus blur', ':input', (e) => {
+    this.$().on('focus blur', ':input,.TextEditor-editorContainer', (e) => {
       this.active = e.type === 'focusin';
       m.redraw();
     });
 
     // When the escape key is pressed on any inputs, close the composer.
-    this.$().on('keydown', ':input', 'esc', () => this.state.close());
+    this.$().on('keydown', ':input,.TextEditor-editorContainer', 'esc', () => this.state.close());
 
     this.handlers = {};
 
@@ -157,7 +157,7 @@ export default class Composer extends Component {
    * Draw focus to the first focusable content element (the text editor).
    */
   focus() {
-    this.$('.Composer-content :input:enabled:visible:first').focus();
+    this.$('.Composer-content :input:enabled:visible, .TextEditor-editor').first().focus();
   }
 
   /**
@@ -199,7 +199,7 @@ export default class Composer extends Component {
    */
   animatePositionChange() {
     // When exiting full-screen mode: focus content
-    if (this.prevPosition === ComposerState.Position.FULLSCREEN) {
+    if (this.prevPosition === ComposerState.Position.FULLSCREEN && this.state.position === ComposerState.Position.NORMAL) {
       this.focus();
       return;
     }
@@ -265,7 +265,17 @@ export default class Composer extends Component {
     this.animateHeightChange().then(() => this.focus());
 
     if (app.screen() === 'phone') {
-      this.$().css('top', $(window).scrollTop());
+      // On safari fixed position doesn't properly work on mobile,
+      // So we use absolute and set the top value.
+      // https://github.com/flarum/core/issues/2652
+
+      // Due to another safari bug, `scrollTop` is unreliable when
+      // at the very bottom of the page AND opening the composer.
+      // So we fallback to a calculated version of scrollTop.
+      // https://github.com/flarum/core/issues/2683
+      const scrollElement = document.documentElement;
+      const topOfViewport = Math.min(scrollElement.scrollTop, scrollElement.scrollHeight - scrollElement.clientHeight);
+      this.$().css('top', $('.App').is('.mobile-safari') ? topOfViewport : 0);
       this.showBackdrop();
     }
   }

js/src/forum/components/ComposerBody.js

@@ -1,10 +1,11 @@
 import Component from '../../common/Component';
 import LoadingIndicator from '../../common/components/LoadingIndicator';
 import ConfirmDocumentUnload from '../../common/components/ConfirmDocumentUnload';
-import TextEditor from './TextEditor';
+import TextEditor from '../../common/components/TextEditor';
 import avatar from '../../common/helpers/avatar';
 import listItems from '../../common/helpers/listItems';
 import ItemList from '../../common/utils/ItemList';
+import classList from '../../common/utils/classList';
 
 /**
  * The `ComposerBody` component handles the body, or the content, of the
@@ -44,12 +45,6 @@ export default class ComposerBody extends Component {
     }
 
     this.composer.fields.content(this.attrs.originalContent || '');
-
-    /**
-     * @deprecated BC layer, remove in Beta 15.
-     */
-    this.content = this.composer.fields.content;
-    this.editor = this.composer;
   }
 
   view() {
@@ -72,7 +67,7 @@ export default class ComposerBody extends Component {
               })}
             </div>
           </div>
-          {LoadingIndicator.component({ className: 'ComposerBody-loading' + (this.loading ? ' active' : '') })}
+          <LoadingIndicator display="unset" containerClassName={classList('ComposerBody-loading', this.loading && 'active')} size="large" />
         </div>
       </ConfirmDocumentUnload>
     );

js/src/forum/components/DiscussionComposer.js

@@ -100,7 +100,7 @@ export default class DiscussionComposer extends ComposerBody {
       .save(data)
       .then((discussion) => {
         this.composer.hide();
-        app.discussions.refresh();
+        app.discussions.refresh({ deferClear: true });
         m.route.set(app.route.discussion(discussion));
       }, this.loaded.bind(this));
   }

js/src/forum/components/DiscussionList.js

@@ -19,7 +19,7 @@ export default class DiscussionList extends Component {
     let loading;
 
     if (state.isLoading()) {
-      loading = LoadingIndicator.component();
+      loading = <LoadingIndicator />;
     } else if (state.moreResults) {
       loading = Button.component(
         {

js/src/forum/components/DiscussionListItem.js

@@ -14,6 +14,7 @@ import DiscussionControls from '../utils/DiscussionControls';
 import slidable from '../utils/slidable';
 import extractText from '../../common/utils/extractText';
 import classList from '../../common/utils/classList';
+import DiscussionPage from './DiscussionPage';
 
 import { escapeRegExp } from 'lodash-es';
 /**
@@ -86,6 +87,7 @@ export default class DiscussionListItem extends Component {
                 icon: 'fas fa-ellipsis-v',
                 className: 'DiscussionListItem-controls',
                 buttonClassName: 'Button Button--icon Button--flat Slidable-underneath Slidable-underneath--right',
+                accessibleToggleLabel: app.translator.trans('core.forum.discussion_controls.toggle_dropdown_accessible_label'),
               },
               controls
             )
@@ -120,6 +122,8 @@ export default class DiscussionListItem extends Component {
           </Link>
 
           <span
+            tabindex="0"
+            role="button"
             className="DiscussionListItem-count"
             onclick={this.markAsRead.bind(this)}
             title={showUnread ? app.translator.trans('core.forum.discussion_list.mark_as_read_tooltip') : ''}
@@ -156,9 +160,7 @@ export default class DiscussionListItem extends Component {
    * @return {Boolean}
    */
   active() {
-    const idParam = m.route.param('id');
-
-    return idParam && idParam.split('-')[0] === this.attrs.discussion.id();
+    return app.current.matches(DiscussionPage, { discussion: this.attrs.discussion });
   }
 
   /**

js/src/forum/components/DiscussionListPane.js

@@ -1,5 +1,6 @@
 import DiscussionList from './DiscussionList';
 import Component from '../../common/Component';
+import DiscussionPage from './DiscussionPage';
 
 const hotEdge = (e) => {
   if (e.pageX < 10) app.pane.show();
@@ -36,23 +37,31 @@ export default class DiscussionListPane extends Component {
 
     $(document).on('mousemove', hotEdge);
 
-    // If the discussion we are viewing is listed in the discussion list, then
-    // we will make sure it is visible in the viewport – if it is not we will
-    // scroll the list down to it.
-    const $discussion = $list.find('.DiscussionListItem.active');
-    if ($discussion.length) {
-      const listTop = $list.offset().top;
-      const listBottom = listTop + $list.outerHeight();
-      const discussionTop = $discussion.offset().top;
-      const discussionBottom = discussionTop + $discussion.outerHeight();
+    // When coming from another discussion, scroll to the previous postition
+    // to prevent the discussion list jumping around.
+    if (app.previous.matches(DiscussionPage)) {
+      const top = app.cache.discussionListPaneScrollTop || 0;
+      $list.scrollTop(top);
+    } else {
+      // If the discussion we are viewing is listed in the discussion list, then
+      // we will make sure it is visible in the viewport – if it is not we will
+      // scroll the list down to it.
+      const $discussion = $list.find('.DiscussionListItem.active');
+      if ($discussion.length) {
+        const listTop = $list.offset().top;
+        const listBottom = listTop + $list.outerHeight();
+        const discussionTop = $discussion.offset().top;
+        const discussionBottom = discussionTop + $discussion.outerHeight();
 
-      if (discussionTop < listTop || discussionBottom > listBottom) {
-        $list.scrollTop($list.scrollTop() - listTop + discussionTop);
+        if (discussionTop < listTop || discussionBottom > listBottom) {
+          $list.scrollTop($list.scrollTop() - listTop + discussionTop);
+        }
       }
     }
   }
 
-  onremove() {
+  onremove(vnode) {
+    app.cache.discussionListPaneScrollTop = $(vnode.dom).scrollTop();
     $(document).off('mousemove', hotEdge);
   }
 

js/src/forum/components/DiscussionPage.js

@@ -18,6 +18,8 @@ export default class DiscussionPage extends Page {
   oninit(vnode) {
     super.oninit(vnode);
 
+    this.useBrowserScrollRestoration = false;
+
     /**
      * The discussion that is being viewed.
      *
@@ -71,23 +73,25 @@ export default class DiscussionPage extends Page {
       <div className="DiscussionPage">
         <DiscussionListPane state={app.discussions} />
         <div className="DiscussionPage-discussion">
-          {discussion
-            ? [
-                DiscussionHero.component({ discussion }),
-                <div className="container">
-                  <nav className="DiscussionPage-nav">
-                    <ul>{listItems(this.sidebarItems().toArray())}</ul>
-                  </nav>
-                  <div className="DiscussionPage-stream">
-                    {PostStream.component({
-                      discussion,
-                      stream: this.stream,
-                      onPositionChange: this.positionChanged.bind(this),
-                    })}
-                  </div>
-                </div>,
-              ]
-            : LoadingIndicator.component({ className: 'LoadingIndicator--block' })}
+          {discussion ? (
+            [
+              DiscussionHero.component({ discussion }),
+              <div className="container">
+                <nav className="DiscussionPage-nav">
+                  <ul>{listItems(this.sidebarItems().toArray())}</ul>
+                </nav>
+                <div className="DiscussionPage-stream">
+                  {PostStream.component({
+                    discussion,
+                    stream: this.stream,
+                    onPositionChange: this.positionChanged.bind(this),
+                  })}
+                </div>
+              </div>,
+            ]
+          ) : (
+            <LoadingIndicator />
+          )}
         </div>
       </div>
     );
@@ -107,7 +111,7 @@ export default class DiscussionPage extends Page {
     } else {
       const params = this.requestParams();
 
-      app.store.find('discussions', m.route.param('id').split('-')[0], params).then(this.show.bind(this));
+      app.store.find('discussions', m.route.param('id'), params).then(this.show.bind(this));
     }
 
     m.redraw();
@@ -121,6 +125,7 @@ export default class DiscussionPage extends Page {
    */
   requestParams() {
     return {
+      bySlug: true,
       page: { near: this.near },
     };
   }
@@ -186,6 +191,7 @@ export default class DiscussionPage extends Page {
           icon: 'fas fa-ellipsis-v',
           className: 'App-primaryControl',
           buttonClassName: 'Button--primary',
+          accessibleToggleLabel: app.translator.trans('core.forum.discussion_controls.toggle_dropdown_accessible_label'),
         },
         DiscussionControls.controls(this.discussion, this).toArray()
       )

js/src/forum/components/EditUserModal.js

@@ -37,9 +37,10 @@ export default class EditUserModal extends Modal {
   }
 
   content() {
+    const fields = this.fields().toArray();
     return (
       <div className="Modal-body">
-        <div className="Form">{this.fields().toArray()}</div>
+        {fields.length > 1 ? <div className="Form">{this.fields().toArray()}</div> : app.translator.trans('core.forum.edit_user.nothing_available')}
       </div>
     );
   }
@@ -47,96 +48,112 @@ export default class EditUserModal extends Modal {
   fields() {
     const items = new ItemList();
 
-    items.add(
-      'username',
-      <div className="Form-group">
-        <label>{app.translator.trans('core.forum.edit_user.username_heading')}</label>
-        <input className="FormControl" placeholder={extractText(app.translator.trans('core.forum.edit_user.username_label'))} bidi={this.username} />
-      </div>,
-      40
-    );
-
-    if (app.session.user !== this.attrs.user) {
+    if (app.session.user.canEditCredentials()) {
       items.add(
-        'email',
+        'username',
         <div className="Form-group">
-          <label>{app.translator.trans('core.forum.edit_user.email_heading')}</label>
-          <div>
-            <input className="FormControl" placeholder={extractText(app.translator.trans('core.forum.edit_user.email_label'))} bidi={this.email} />
-          </div>
-          {!this.isEmailConfirmed() ? (
-            <div>
-              {Button.component(
-                {
-                  className: 'Button Button--block',
-                  loading: this.loading,
-                  onclick: this.activate.bind(this),
-                },
-                app.translator.trans('core.forum.edit_user.activate_button')
-              )}
-            </div>
-          ) : (
-            ''
-          )}
+          <label>{app.translator.trans('core.forum.edit_user.username_heading')}</label>
+          <input
+            className="FormControl"
+            placeholder={extractText(app.translator.trans('core.forum.edit_user.username_label'))}
+            bidi={this.username}
+            disabled={this.nonAdminEditingAdmin()}
+          />
         </div>,
-        30
+        40
       );
 
-      items.add(
-        'password',
-        <div className="Form-group">
-          <label>{app.translator.trans('core.forum.edit_user.password_heading')}</label>
-          <div>
-            <label className="checkbox">
-              <input
-                type="checkbox"
-                onchange={(e) => {
-                  this.setPassword(e.target.checked);
-                  m.redraw.sync();
-                  if (e.target.checked) this.$('[name=password]').select();
-                  e.redraw = false;
-                }}
-              />
-              {app.translator.trans('core.forum.edit_user.set_password_label')}
-            </label>
-            {this.setPassword() ? (
+      if (app.session.user !== this.attrs.user) {
+        items.add(
+          'email',
+          <div className="Form-group">
+            <label>{app.translator.trans('core.forum.edit_user.email_heading')}</label>
+            <div>
               <input
                 className="FormControl"
-                type="password"
-                name="password"
-                placeholder={extractText(app.translator.trans('core.forum.edit_user.password_label'))}
-                bidi={this.password}
+                placeholder={extractText(app.translator.trans('core.forum.edit_user.email_label'))}
+                bidi={this.email}
+                disabled={this.nonAdminEditingAdmin()}
               />
+            </div>
+            {!this.isEmailConfirmed() && this.userIsAdmin(app.session.user) ? (
+              <div>
+                {Button.component(
+                  {
+                    className: 'Button Button--block',
+                    loading: this.loading,
+                    onclick: this.activate.bind(this),
+                  },
+                  app.translator.trans('core.forum.edit_user.activate_button')
+                )}
+              </div>
             ) : (
               ''
             )}
-          </div>
-        </div>,
-        20
-      );
-    }
+          </div>,
+          30
+        );
 
-    items.add(
-      'groups',
-      <div className="Form-group EditUserModal-groups">
-        <label>{app.translator.trans('core.forum.edit_user.groups_heading')}</label>
-        <div>
-          {Object.keys(this.groups)
-            .map((id) => app.store.getById('groups', id))
-            .map((group) => (
+        items.add(
+          'password',
+          <div className="Form-group">
+            <label>{app.translator.trans('core.forum.edit_user.password_heading')}</label>
+            <div>
               <label className="checkbox">
                 <input
                   type="checkbox"
-                  bidi={this.groups[group.id()]}
-                  disabled={this.attrs.user.id() === '1' && group.id() === Group.ADMINISTRATOR_ID}
+                  onchange={(e) => {
+                    this.setPassword(e.target.checked);
+                    m.redraw.sync();
+                    if (e.target.checked) this.$('[name=password]').select();
+                    e.redraw = false;
+                  }}
+                  disabled={this.nonAdminEditingAdmin()}
                 />
-                {GroupBadge.component({ group, label: '' })} {group.nameSingular()}
+                {app.translator.trans('core.forum.edit_user.set_password_label')}
               </label>
-            ))}
-        </div>
-      </div>,
-      10
-    );
+              {this.setPassword() ? (
+                <input
+                  className="FormControl"
+                  type="password"
+                  name="password"
+                  placeholder={extractText(app.translator.trans('core.forum.edit_user.password_label'))}
+                  bidi={this.password}
+                  disabled={this.nonAdminEditingAdmin()}
+                />
+              ) : (
+                ''
+              )}
+            </div>
+          </div>,
+          20
+        );
+      }
+    }
+
+    if (app.session.user.canEditGroups()) {
+      items.add(
+        'groups',
+        <div className="Form-group EditUserModal-groups">
+          <label>{app.translator.trans('core.forum.edit_user.groups_heading')}</label>
+          <div>
+            {Object.keys(this.groups)
+              .map((id) => app.store.getById('groups', id))
+              .map((group) => (
+                <label className="checkbox">
+                  <input
+                    type="checkbox"
+                    bidi={this.groups[group.id()]}
+                    disabled={group.id() === Group.ADMINISTRATOR_ID && (this.attrs.user === app.session.user || !this.userIsAdmin(app.session.user))}
+                  />
+                  {GroupBadge.component({ group, label: '' })} {group.nameSingular()}
+                </label>
+              ))}
+          </div>
+        </div>,
+        10
+      );
+    }
 
     items.add(
       'submit',
@@ -176,21 +193,26 @@ export default class EditUserModal extends Modal {
   }
 
   data() {
-    const groups = Object.keys(this.groups)
-      .filter((id) => this.groups[id]())
-      .map((id) => app.store.getById('groups', id));
-
     const data = {
-      username: this.username(),
-      relationships: { groups },
+      relationships: {},
     };
 
-    if (app.session.user !== this.attrs.user) {
-      data.email = this.email();
+    if (this.attrs.user.canEditCredentials() && !this.nonAdminEditingAdmin()) {
+      data.username = this.username();
+
+      if (app.session.user !== this.attrs.user) {
+        data.email = this.email();
+      }
+
+      if (this.setPassword()) {
+        data.password = this.password();
+      }
     }
 
-    if (this.setPassword()) {
-      data.password = this.password();
+    if (this.attrs.user.canEditGroups()) {
+      data.relationships.groups = Object.keys(this.groups)
+        .filter((id) => this.groups[id]())
+        .map((id) => app.store.getById('groups', id));
     }
 
     return data;
@@ -209,4 +231,16 @@ export default class EditUserModal extends Modal {
         m.redraw();
       });
   }
+
+  nonAdminEditingAdmin() {
+    return this.userIsAdmin(this.attrs.user) && !this.userIsAdmin(app.session.user);
+  }
+
+  /**
+   * @internal
+   * @protected
+   */
+  userIsAdmin(user) {
+    return user.groups().some((g) => g.id() === Group.ADMINISTRATOR_ID);
+  }
 }

js/src/forum/components/HeaderSecondary.js

@@ -57,6 +57,7 @@ export default class HeaderSecondary extends Component {
         SelectDropdown.component(
           {
             buttonClassName: 'Button Button--link',
+            accessibleToggleLabel: app.translator.trans('core.forum.header.locale_dropdown_accessible_label'),
           },
           locales
         ),

js/src/forum/components/IndexPage.js

@@ -172,6 +172,7 @@ export default class IndexPage extends Page {
         {
           buttonClassName: 'Button',
           className: 'App-titleControl',
+          accessibleToggleLabel: app.translator.trans('core.forum.index.toggle_sidenav_dropdown_accessible_label'),
         },
         this.navItems(this).toArray()
       )
@@ -227,6 +228,7 @@ export default class IndexPage extends Page {
         {
           buttonClassName: 'Button',
           label: sortOptions[app.search.params().sort] || Object.keys(sortMap).map((key) => sortOptions[key])[0],
+          accessibleToggleLabel: app.translator.trans('core.forum.index_sort.toggle_dropdown_accessible_label'),
         },
         Object.keys(sortOptions).map((value) => {
           const label = sortOptions[value];

js/src/forum/components/NotificationList.js

@@ -84,7 +84,7 @@ export default class NotificationList extends Component {
               })
             : ''}
           {state.isLoading() ? (
-            <LoadingIndicator className="LoadingIndicator--block" />
+            <LoadingIndicator />
           ) : pages.length ? (
             ''
           ) : (
@@ -99,7 +99,9 @@ export default class NotificationList extends Component {
     super.oncreate(vnode);
 
     this.$notifications = this.$('.NotificationList-content');
-    this.$scrollParent = this.$notifications.css('overflow') === 'auto' ? this.$notifications : $(window);
+
+    // If we are on the notifications page, the window will be scrolling and not the $notifications element.
+    this.$scrollParent = this.inPanel() ? this.$notifications : $(window);
 
     this.boundScrollHandler = this.scrollHandler.bind(this);
     this.$scrollParent.on('scroll', this.boundScrollHandler);
@@ -112,14 +114,24 @@ export default class NotificationList extends Component {
   scrollHandler() {
     const state = this.attrs.state;
 
-    const scrollTop = this.$scrollParent.scrollTop();
-    const viewportHeight = this.$scrollParent.height();
+    // Whole-page scroll events are listened to on `window`, but we need to get the actual
+    // scrollHeight, scrollTop, and clientHeight from the document element.
+    const scrollParent = this.inPanel() ? this.$scrollParent[0] : document.documentElement;
 
-    const contentTop = this.$scrollParent === this.$notifications ? 0 : this.$notifications.offset().top;
-    const contentHeight = this.$notifications[0].scrollHeight;
+    // On very short screens, the scrollHeight + scrollTop might not reach the clientHeight
+    // by a fraction of a pixel, so we compensate for that.
+    const atBottom = Math.abs(scrollParent.scrollHeight - scrollParent.scrollTop - scrollParent.clientHeight) <= 1;
 
-    if (state.hasMoreResults() && !state.isLoading() && scrollTop + viewportHeight >= contentTop + contentHeight) {
+    if (state.hasMoreResults() && !state.isLoading() && atBottom) {
       state.loadMore();
     }
   }
+
+  /**
+   * If the NotificationList component isn't in a panel (e.g. on NotificationPage when mobile),
+   * we need to listen to scroll events on the window, and get scroll state from the body.
+   */
+  inPanel() {
+    return this.$notifications.css('overflow') === 'auto';
+  }
 }

js/src/forum/components/NotificationsDropdown.js

@@ -9,6 +9,8 @@ export default class NotificationsDropdown extends Dropdown {
     attrs.menuClassName = attrs.menuClassName || 'Dropdown-menu--right';
     attrs.label = attrs.label || app.translator.trans('core.forum.notifications.tooltip');
     attrs.icon = attrs.icon || 'fas fa-bell';
+    // For best a11y support, both `title` and `aria-label` should be used
+    attrs.accessibleToggleLabel = attrs.accessibleToggleLabel || app.translator.trans('core.forum.notifications.toggle_dropdown_accessible_label');
 
     super.initAttrs(attrs);
   }

js/src/forum/components/Post.js

@@ -61,6 +61,7 @@ export default class Post extends Component {
                     icon="fas fa-ellipsis-h"
                     onshow={() => this.$('.Post-actions').addClass('open')}
                     onhide={() => this.$('.Post-actions').removeClass('open')}
+                    accessibleToggleLabel={app.translator.trans('core.forum.post_controls.toggle_dropdown_accessible_label')}
                   >
                     {controls}
                   </Dropdown>

js/src/forum/components/PostStream.js

@@ -142,13 +142,29 @@ export default class PostStream extends Component {
   }
 
   /**
-   * When the window is scrolled, check if either extreme of the post stream is
-   * in the viewport, and if so, trigger loading the next/previous page.
    *
    * @param {Integer} top
    */
   onscroll(top = window.pageYOffset) {
-    if (this.stream.paused) return;
+    if (this.stream.paused || this.stream.pagesLoading) return;
+
+    this.updateScrubber(top);
+
+    this.loadPostsIfNeeded(top);
+
+    // Throttle calculation of our position (start/end numbers of posts in the
+    // viewport) to 100ms.
+    clearTimeout(this.calculatePositionTimeout);
+    this.calculatePositionTimeout = setTimeout(this.calculatePosition.bind(this, top), 100);
+  }
+
+  /**
+   * Check if either extreme of the post stream is in the viewport,
+   * and if so, trigger loading the next/previous page.
+   *
+   * @param {Integer} top
+   */
+  loadPostsIfNeeded(top = window.pageYOffset) {
     const marginTop = this.getMarginTop();
     const viewportHeight = $(window).height() - marginTop;
     const viewportTop = top + marginTop;
@@ -169,13 +185,6 @@ export default class PostStream extends Component {
         this.stream.loadNext();
       }
     }
-
-    // Throttle calculation of our position (start/end numbers of posts in the
-    // viewport) to 100ms.
-    clearTimeout(this.calculatePositionTimeout);
-    this.calculatePositionTimeout = setTimeout(this.calculatePosition.bind(this, top), 100);
-
-    this.updateScrubber(top);
   }
 
   updateScrubber(top = window.pageYOffset) {
@@ -287,7 +296,9 @@ export default class PostStream extends Component {
    * @return {Integer}
    */
   getMarginTop() {
-    return this.$() && $('#header').outerHeight() + parseInt(this.$().css('margin-top'), 10);
+    const headerId = app.screen() === 'phone' ? '#app-navigation' : '#header';
+
+    return this.$() && $(headerId).outerHeight() + parseInt(this.$().css('margin-top'), 10);
   }
 
   /**
@@ -394,6 +405,8 @@ export default class PostStream extends Component {
 
       this.calculatePosition();
       this.stream.paused = false;
+      // Check if we need to load more posts after scrolling.
+      this.loadPostsIfNeeded();
     });
   }
 

js/src/forum/components/PostStreamScrubber.js

@@ -112,7 +112,6 @@ export default class PostStreamScrubber extends Component {
 
       // Now we want to make the scrollbar handle draggable. Let's start by
       // preventing default browser events from messing things up.
-      .css({ cursor: 'pointer', 'user-select': 'none' })
       .bind('dragstart mousedown touchstart', (e) => e.preventDefault());
 
     // When the mouse is pressed on the scrollbar handle, we capture some
@@ -124,7 +123,6 @@ export default class PostStreamScrubber extends Component {
     this.indexStart = 0;
 
     this.$('.Scrubber-handle')
-      .css('cursor', 'move')
       .bind('mousedown touchstart', this.onmousedown.bind(this))
 
       // Exempt the scrollbar handle from the 'jump to' click event.

js/src/forum/components/PostsUserPage.js

@@ -121,7 +121,7 @@ export default class PostsUserPage extends UserPage {
   loadResults(offset) {
     return app.store.find('posts', {
       filter: {
-        user: this.user.id(),
+        author: this.user.username(),
         type: 'comment',
       },
       page: { offset, limit: this.loadLimit },

js/src/forum/components/RenameDiscussionModal.js

@@ -49,7 +49,7 @@ export default class RenameDiscussionModal extends Modal {
 
     this.loading = true;
 
-    const title = this.newTitle;
+    const title = this.newTitle();
     const currentTitle = this.currentTitle;
 
     // If the title is different to what it was before, then save it. After the

js/src/forum/components/ReplyPlaceholder.js

@@ -5,6 +5,7 @@ import avatar from '../../common/helpers/avatar';
 import username from '../../common/helpers/username';
 import DiscussionControls from '../utils/DiscussionControls';
 import ComposerPostPreview from './ComposerPostPreview';
+import listItems from '../../common/helpers/listItems';
 
 /**
  * The `ReplyPlaceholder` component displays a placeholder for a reply, which,
@@ -25,6 +26,7 @@ export default class ReplyPlaceholder extends Component {
                 {avatar(app.session.user, { className: 'PostUser-avatar' })}
                 {username(app.session.user)}
               </h3>
+              <ul className="PostUser-badges badges">{listItems(app.session.user.badges().toArray())}</ul>
             </div>
           </header>
           <ComposerPostPreview className="Post-body" composer={app.composer} surround={this.anchorPreview.bind(this)} />

js/src/forum/components/Search.js

@@ -21,6 +21,8 @@ import UsersSearchSource from './UsersSearchSource';
  * - state: SearchState instance.
  */
 export default class Search extends Component {
+  static MIN_SEARCH_LEN = 3;
+
   oninit(vnode) {
     super.oninit(vnode);
     this.state = this.attrs.state;
@@ -69,8 +71,11 @@ export default class Search extends Component {
     // Hide the search view if no sources were loaded
     if (!this.sources.length) return <div></div>;
 
+    const searchLabel = extractText(app.translator.trans('core.forum.header.search_placeholder'));
+
     return (
       <div
+        role="search"
         className={
           'Search ' +
           classList({
@@ -83,16 +88,17 @@ export default class Search extends Component {
       >
         <div className="Search-input">
           <input
+            aria-label={searchLabel}
             className="FormControl"
             type="search"
-            placeholder={extractText(app.translator.trans('core.forum.header.search_placeholder'))}
+            placeholder={searchLabel}
             value={this.state.getValue()}
             oninput={(e) => this.state.setValue(e.target.value)}
             onfocus={() => (this.hasFocus = true)}
             onblur={() => (this.hasFocus = false)}
           />
           {this.loadingSources ? (
-            LoadingIndicator.component({ size: 'tiny', className: 'Button Button--icon Button--link' })
+            <LoadingIndicator size="small" display="inline" containerClassName="Button Button--icon Button--link" />
           ) : currentSearch ? (
             <button className="Search-clear Button Button--icon Button--link" onclick={this.clear.bind(this)}>
               {icon('fas fa-times-circle')}
@@ -108,9 +114,23 @@ export default class Search extends Component {
     );
   }
 
+  updateMaxHeight() {
+    // Since extensions might add elements above the search box on mobile,
+    // we need to calculate and set the max height dynamically.
+    const resultsElementMargin = 14;
+    const maxHeight =
+      window.innerHeight - this.element.querySelector('.Search-input>.FormControl').getBoundingClientRect().bottom - resultsElementMargin;
+    this.element.querySelector('.Search-results').style['max-height'] = `${maxHeight}px`;
+  }
+
   onupdate() {
     // Highlight the item that is currently selected.
     this.setIndex(this.getCurrentNumericIndex());
+
+    // If there are no sources, the search view is not shown.
+    if (!this.sources.length) return;
+
+    this.updateMaxHeight();
   }
 
   oncreate(vnode) {
@@ -152,7 +172,7 @@ export default class Search extends Component {
         search.searchTimeout = setTimeout(() => {
           if (state.isCached(query)) return;
 
-          if (query.length >= 3) {
+          if (query.length >= Search.MIN_SEARCH_LEN) {
             search.sources.map((source) => {
               if (!source.search) return;
 
@@ -175,6 +195,13 @@ export default class Search extends Component {
           .one('mouseup', (e) => e.preventDefault())
           .select();
       });
+
+    this.updateMaxHeightHandler = this.updateMaxHeight.bind(this);
+    window.addEventListener('resize', this.updateMaxHeightHandler);
+  }
+
+  onremove() {
+    window.removeEventListener('resize', this.updateMaxHeightHandler);
   }
 
   /**

js/src/forum/components/SessionDropdown.js

@@ -17,6 +17,8 @@ export default class SessionDropdown extends Dropdown {
     attrs.className = 'SessionDropdown';
     attrs.buttonClassName = 'Button Button--user Button--flat';
     attrs.menuClassName = 'Dropdown-menu--right';
+
+    attrs.accessibleToggleLabel = app.translator.trans('core.forum.header.session_dropdown_accessible_label');
   }
 
   view(vnode) {

js/src/forum/components/UserCard.js

@@ -40,6 +40,7 @@ export default class UserCard extends Component {
                     menuClassName: 'Dropdown-menu--right',
                     buttonClassName: this.attrs.controlsButtonClassName,
                     label: app.translator.trans('core.forum.user_controls.button'),
+                    accessibleToggleLabel: app.translator.trans('core.forum.user_controls.toggle_dropdown_accessible_label'),
                     icon: 'fas fa-ellipsis-v',
                   },
                   controls

js/src/forum/components/UserPage.js

@@ -51,7 +51,7 @@ export default class UserPage extends Page {
                 </div>
               </div>,
             ]
-          : [<LoadingIndicator className="LoadingIndicator--block" />]}
+          : [<LoadingIndicator display="block" />]}
       </div>
     );
   }
@@ -102,7 +102,7 @@ export default class UserPage extends Page {
     });
 
     if (!this.user) {
-      app.store.find('users', username).then(this.show.bind(this));
+      app.store.find('users', username, { bySlug: true }).then(this.show.bind(this));
     }
   }