Add featured tags selector for WebUI (#19358)

* Add featured tags selector for WebUI

* Add title to tag count

9 files changed, 194 insertions, 20 deletions

diff --git a/app/javascript/mastodon/actions/featured_tags.js b/app/javascript/mastodon/actions/featured_tags.js
new file mode 100644
index 000000000..18bb61539
--- /dev/null
+++ b/app/javascript/mastodon/actions/featured_tags.js
@@ -0,0 +1,34 @@
+import api from '../api';
+
+export const FEATURED_TAGS_FETCH_REQUEST = 'FEATURED_TAGS_FETCH_REQUEST';
+export const FEATURED_TAGS_FETCH_SUCCESS = 'FEATURED_TAGS_FETCH_SUCCESS';
+export const FEATURED_TAGS_FETCH_FAIL    = 'FEATURED_TAGS_FETCH_FAIL';
+
+export const fetchFeaturedTags = (id) => (dispatch, getState) => {
+  if (getState().getIn(['user_lists', 'featured_tags', id, 'items'])) {
+    return;
+  }
+
+  dispatch(fetchFeaturedTagsRequest(id));
+
+  api(getState).get(`/api/v1/accounts/${id}/featured_tags`)
+    .then(({ data }) => dispatch(fetchFeaturedTagsSuccess(id, data)))
+    .catch(err => dispatch(fetchFeaturedTagsFail(id, err)));
+};
+
+export const fetchFeaturedTagsRequest = (id) => ({
+  type: FEATURED_TAGS_FETCH_REQUEST,
+  id,
+});
+
+export const fetchFeaturedTagsSuccess = (id, tags) => ({
+  type: FEATURED_TAGS_FETCH_SUCCESS,
+  id,
+  tags,
+});
+
+export const fetchFeaturedTagsFail = (id, error) => ({
+  type: FEATURED_TAGS_FETCH_FAIL,
+  id,
+  error,
+});
diff --git a/app/javascript/mastodon/actions/timelines.js b/app/javascript/mastodon/actions/timelines.js
index 44fedd5c2..a3434908f 100644
--- a/app/javascript/mastodon/actions/timelines.js
+++ b/app/javascript/mastodon/actions/timelines.js
@@ -143,8 +143,8 @@ export function fillTimelineGaps(timelineId, path, params = {}, done = noOp) {
 export const expandHomeTimeline            = ({ maxId } = {}, done = noOp) => expandTimeline('home', '/api/v1/timelines/home', { max_id: maxId }, done);
 export const expandPublicTimeline          = ({ maxId, onlyMedia, onlyRemote } = {}, done = noOp) => expandTimeline(`public${onlyRemote ? ':remote' : ''}${onlyMedia ? ':media' : ''}`, '/api/v1/timelines/public', { remote: !!onlyRemote, max_id: maxId, only_media: !!onlyMedia }, done);
 export const expandCommunityTimeline       = ({ maxId, onlyMedia } = {}, done = noOp) => expandTimeline(`community${onlyMedia ? ':media' : ''}`, '/api/v1/timelines/public', { local: true, max_id: maxId, only_media: !!onlyMedia }, done);
-export const expandAccountTimeline         = (accountId, { maxId, withReplies } = {}) => expandTimeline(`account:${accountId}${withReplies ? ':with_replies' : ''}`, `/api/v1/accounts/${accountId}/statuses`, { exclude_replies: !withReplies, max_id: maxId });
-export const expandAccountFeaturedTimeline = accountId => expandTimeline(`account:${accountId}:pinned`, `/api/v1/accounts/${accountId}/statuses`, { pinned: true });
+export const expandAccountTimeline         = (accountId, { maxId, withReplies, tagged } = {}) => expandTimeline(`account:${accountId}${withReplies ? ':with_replies' : ''}${tagged ? `:${tagged}` : ''}`, `/api/v1/accounts/${accountId}/statuses`, { exclude_replies: !withReplies, tagged, max_id: maxId });
+export const expandAccountFeaturedTimeline = (accountId, { tagged } = {}) => expandTimeline(`account:${accountId}:pinned${tagged ? `:${tagged}` : ''}`, `/api/v1/accounts/${accountId}/statuses`, { pinned: true, tagged });
 export const expandAccountMediaTimeline    = (accountId, { maxId } = {}) => expandTimeline(`account:${accountId}:media`, `/api/v1/accounts/${accountId}/statuses`, { max_id: maxId, only_media: true, limit: 40 });
 export const expandListTimeline            = (id, { maxId } = {}, done = noOp) => expandTimeline(`list:${id}`, `/api/v1/timelines/list/${id}`, { max_id: maxId }, done);
 export const expandHashtagTimeline         = (hashtag, { maxId, tags, local } = {}, done = noOp) => {
diff --git a/app/javascript/mastodon/features/account/components/featured_tags.js b/app/javascript/mastodon/features/account/components/featured_tags.js
new file mode 100644
index 000000000..3d5b8b079
--- /dev/null
+++ b/app/javascript/mastodon/features/account/components/featured_tags.js
@@ -0,0 +1,71 @@
+import React from 'react';
+import { connect } from 'react-redux';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import { defineMessages, injectIntl } from 'react-intl';
+import classNames from 'classnames';
+import Permalink from 'mastodon/components/permalink';
+import ShortNumber from 'mastodon/components/short_number';
+import { List as ImmutableList } from 'immutable';
+
+const messages = defineMessages({
+  hashtag_all: { id: 'account.hashtag_all', defaultMessage: 'All' },
+  hashtag_all_description: { id: 'account.hashtag_all_description', defaultMessage: 'All posts (deselect hashtags)' },
+  hashtag_select_description: { id: 'account.hashtag_select_description', defaultMessage: 'Select hashtag #{name}' },
+  statuses_counter: { id: 'account.statuses_counter', defaultMessage: '{count, plural, one {{counter} Post} other {{counter} Posts}}' },
+});
+
+const mapStateToProps = (state, { account }) => ({
+  featuredTags: state.getIn(['user_lists', 'featured_tags', account.get('id'), 'items'], ImmutableList()),
+});
+
+export default @connect(mapStateToProps)
+@injectIntl
+class FeaturedTags extends ImmutablePureComponent {
+
+  static contextTypes = {
+    router: PropTypes.object,
+  };
+
+  static propTypes = {
+    account: ImmutablePropTypes.map,
+    featuredTags: ImmutablePropTypes.list,
+    tagged: PropTypes.string,
+    intl: PropTypes.object.isRequired,
+  };
+
+  render () {
+    const { account, featuredTags, tagged, intl } = this.props;
+
+    if (!account || featuredTags.isEmpty()) {
+      return null;
+    }
+
+    const suspended = account.get('suspended');
+
+    return (
+      <div className={classNames('account__header', 'advanced', { inactive: !!account.get('moved') })}>
+        <div className='account__header__extra'>
+          <div className='account__header__extra__hashtag-links'>
+            <Permalink key='all' className={classNames('account__hashtag-link', { active: !tagged })} title={intl.formatMessage(messages.hashtag_all_description)} href={account.get('url')} to={`/@${account.get('acct')}`}>{intl.formatMessage(messages.hashtag_all)}</Permalink>
+            {!suspended && featuredTags.map(featuredTag => {
+              const name  = featuredTag.get('name');
+              const url   = featuredTag.get('url');
+              const to    = `/@${account.get('acct')}/tagged/${name}`;
+              const desc  = intl.formatMessage(messages.hashtag_select_description, { name });
+              const count = featuredTag.get('statuses_count');
+
+              return (
+                <Permalink key={`#${name}`} className={classNames('account__hashtag-link', { active: this.context.router.history.location.pathname === to })} title={desc} href={url} to={to}>
+                  #{name} <span title={intl.formatMessage(messages.statuses_counter, { count: count, counter: intl.formatNumber(count) })}>({<ShortNumber value={count} />})</span>
+                </Permalink>
+              );
+            })}
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/account_timeline/components/header.js b/app/javascript/mastodon/features/account_timeline/components/header.js
index f31848f41..ea34a934a 100644
--- a/app/javascript/mastodon/features/account_timeline/components/header.js
+++ b/app/javascript/mastodon/features/account_timeline/components/header.js
@@ -1,7 +1,8 @@
-import React from 'react';
+import React, { Fragment } from 'react';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
 import InnerHeader from '../../account/components/header';
+import FeaturedTags from '../../account/components/featured_tags';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import MovedNote from './moved_note';
 import { FormattedMessage } from 'react-intl';
@@ -27,6 +28,7 @@ export default class Header extends ImmutablePureComponent {
     hideTabs: PropTypes.bool,
     domain: PropTypes.string.isRequired,
     hidden: PropTypes.bool,
+    tagged: PropTypes.string,
   };
 
   static contextTypes = {
@@ -102,7 +104,7 @@ export default class Header extends ImmutablePureComponent {
   }
 
   render () {
-    const { account, hidden, hideTabs } = this.props;
+    const { account, hidden, hideTabs, tagged } = this.props;
 
     if (account === null) {
       return null;
@@ -134,11 +136,15 @@ export default class Header extends ImmutablePureComponent {
         />
 
         {!(hideTabs || hidden) && (
-          <div className='account__section-headline'>
-            <NavLink exact to={`/@${account.get('acct')}`}><FormattedMessage id='account.posts' defaultMessage='Posts' /></NavLink>
-            <NavLink exact to={`/@${account.get('acct')}/with_replies`}><FormattedMessage id='account.posts_with_replies' defaultMessage='Posts and replies' /></NavLink>
-            <NavLink exact to={`/@${account.get('acct')}/media`}><FormattedMessage id='account.media' defaultMessage='Media' /></NavLink>
-          </div>
+          <Fragment>
+            <div className='account__section-headline'>
+              <NavLink exact to={`/@${account.get('acct')}`}><FormattedMessage id='account.posts' defaultMessage='Posts' /></NavLink>
+              <NavLink exact to={`/@${account.get('acct')}/with_replies`}><FormattedMessage id='account.posts_with_replies' defaultMessage='Posts and replies' /></NavLink>
+              <NavLink exact to={`/@${account.get('acct')}/media`}><FormattedMessage id='account.media' defaultMessage='Media' /></NavLink>
+            </div>
+
+            <FeaturedTags account={account} tagged={tagged} />
+          </Fragment>
         )}
       </div>
     );
diff --git a/app/javascript/mastodon/features/account_timeline/index.js b/app/javascript/mastodon/features/account_timeline/index.js
index 5b592c5a7..51fb76f1f 100644
--- a/app/javascript/mastodon/features/account_timeline/index.js
+++ b/app/javascript/mastodon/features/account_timeline/index.js
@@ -18,10 +18,11 @@ import { me } from 'mastodon/initial_state';
 import { connectTimeline, disconnectTimeline } from 'mastodon/actions/timelines';
 import LimitedAccountHint from './components/limited_account_hint';
 import { getAccountHidden } from 'mastodon/selectors';
+import { fetchFeaturedTags } from '../../actions/featured_tags';
 
 const emptyList = ImmutableList();
 
-const mapStateToProps = (state, { params: { acct, id }, withReplies = false }) => {
+const mapStateToProps = (state, { params: { acct, id, tagged }, withReplies = false }) => {
   const accountId = id || state.getIn(['accounts_map', acct]);
 
   if (!accountId) {
@@ -30,7 +31,7 @@ const mapStateToProps = (state, { params: { acct, id }, withReplies = false }) =
     };
   }
 
-  const path = withReplies ? `${accountId}:with_replies` : accountId;
+  const path = withReplies ? `${accountId}:with_replies` : `${accountId}${tagged ? `:${tagged}` : ''}`;
 
   return {
     accountId,
@@ -38,7 +39,7 @@ const mapStateToProps = (state, { params: { acct, id }, withReplies = false }) =
     remoteUrl: state.getIn(['accounts', accountId, 'url']),
     isAccount: !!state.getIn(['accounts', accountId]),
     statusIds: state.getIn(['timelines', `account:${path}`, 'items'], emptyList),
-    featuredStatusIds: withReplies ? ImmutableList() : state.getIn(['timelines', `account:${accountId}:pinned`, 'items'], emptyList),
+    featuredStatusIds: withReplies ? ImmutableList() : state.getIn(['timelines', `account:${accountId}:pinned${tagged ? `:${tagged}` : ''}`, 'items'], emptyList),
     isLoading: state.getIn(['timelines', `account:${path}`, 'isLoading']),
     hasMore: state.getIn(['timelines', `account:${path}`, 'hasMore']),
     suspended: state.getIn(['accounts', accountId, 'suspended'], false),
@@ -62,6 +63,7 @@ class AccountTimeline extends ImmutablePureComponent {
     params: PropTypes.shape({
       acct: PropTypes.string,
       id: PropTypes.string,
+      tagged: PropTypes.string,
     }).isRequired,
     accountId: PropTypes.string,
     dispatch: PropTypes.func.isRequired,
@@ -80,15 +82,16 @@ class AccountTimeline extends ImmutablePureComponent {
   };
 
   _load () {
-    const { accountId, withReplies, dispatch } = this.props;
+    const { accountId, withReplies, params: { tagged }, dispatch } = this.props;
 
     dispatch(fetchAccount(accountId));
 
     if (!withReplies) {
-      dispatch(expandAccountFeaturedTimeline(accountId));
+      dispatch(expandAccountFeaturedTimeline(accountId, { tagged }));
     }
 
-    dispatch(expandAccountTimeline(accountId, { withReplies }));
+    dispatch(fetchFeaturedTags(accountId));
+    dispatch(expandAccountTimeline(accountId, { withReplies, tagged }));
 
     if (accountId === me) {
       dispatch(connectTimeline(`account:${me}`));
@@ -106,12 +109,17 @@ class AccountTimeline extends ImmutablePureComponent {
   }
 
   componentDidUpdate (prevProps) {
-    const { params: { acct }, accountId, dispatch } = this.props;
+    const { params: { acct, tagged }, accountId, withReplies, dispatch } = this.props;
 
     if (prevProps.accountId !== accountId && accountId) {
       this._load();
     } else if (prevProps.params.acct !== acct) {
       dispatch(lookupAccount(acct));
+    } else if (prevProps.params.tagged !== tagged) {
+      if (!withReplies) {
+        dispatch(expandAccountFeaturedTimeline(accountId, { tagged }));
+      }
+      dispatch(expandAccountTimeline(accountId, { withReplies, tagged }));
     }
 
     if (prevProps.accountId === me && accountId !== me) {
@@ -128,7 +136,7 @@ class AccountTimeline extends ImmutablePureComponent {
   }
 
   handleLoadMore = maxId => {
-    this.props.dispatch(expandAccountTimeline(this.props.accountId, { maxId, withReplies: this.props.withReplies }));
+    this.props.dispatch(expandAccountTimeline(this.props.accountId, { maxId, withReplies: this.props.withReplies, tagged: this.props.params.tagged }));
   }
 
   render () {
@@ -174,7 +182,7 @@ class AccountTimeline extends ImmutablePureComponent {
         <ColumnBackButton multiColumn={multiColumn} />
 
         <StatusList
-          prepend={<HeaderContainer accountId={this.props.accountId} hideTabs={forceEmptyState} />}
+          prepend={<HeaderContainer accountId={this.props.accountId} hideTabs={forceEmptyState} tagged={this.props.params.tagged} />}
           alwaysPrepend
           append={remoteMessage}
           scrollKey='account_timeline'
diff --git a/app/javascript/mastodon/features/ui/index.js b/app/javascript/mastodon/features/ui/index.js
index 8333ea282..8f9f38036 100644
--- a/app/javascript/mastodon/features/ui/index.js
+++ b/app/javascript/mastodon/features/ui/index.js
@@ -195,6 +195,7 @@ class SwitchingColumnsArea extends React.PureComponent {
           <WrappedRoute path={['/publish', '/statuses/new']} component={Compose} content={children} />
 
           <WrappedRoute path={['/@:acct', '/accounts/:id']} exact component={AccountTimeline} content={children} />
+          <WrappedRoute path='/@:acct/tagged/:tagged?' exact component={AccountTimeline} content={children} />
           <WrappedRoute path={['/@:acct/with_replies', '/accounts/:id/with_replies']} component={AccountTimeline} content={children} componentParams={{ withReplies: true }} />
           <WrappedRoute path={['/@:acct/followers', '/accounts/:id/followers']} component={Followers} content={children} />
           <WrappedRoute path={['/@:acct/following', '/accounts/:id/following']} component={Following} content={children} />
diff --git a/app/javascript/mastodon/locales/en.json b/app/javascript/mastodon/locales/en.json
index 3eb13a8ea..d840a7103 100644
--- a/app/javascript/mastodon/locales/en.json
+++ b/app/javascript/mastodon/locales/en.json
@@ -35,6 +35,9 @@
   "account.following_counter": "{count, plural, one {{counter} Following} other {{counter} Following}}",
   "account.follows.empty": "This user doesn't follow anyone yet.",
   "account.follows_you": "Follows you",
+  "account.hashtag_all": "All",
+  "account.hashtag_all_description": "All posts (deselect hashtags)",
+  "account.hashtag_select_description": "Select hashtag #{name}",
   "account.hide_reblogs": "Hide boosts from @{name}",
   "account.joined": "Joined {date}",
   "account.languages": "Change subscribed languages",
diff --git a/app/javascript/mastodon/reducers/user_lists.js b/app/javascript/mastodon/reducers/user_lists.js
index 10aaa2d68..f19c1e2e9 100644
--- a/app/javascript/mastodon/reducers/user_lists.js
+++ b/app/javascript/mastodon/reducers/user_lists.js
@@ -22,7 +22,7 @@ import {
   FOLLOW_REQUESTS_EXPAND_FAIL,
   FOLLOW_REQUEST_AUTHORIZE_SUCCESS,
   FOLLOW_REQUEST_REJECT_SUCCESS,
-} from '../actions/accounts';
+  } from '../actions/accounts';
 import {
   REBLOGS_FETCH_SUCCESS,
   FAVOURITES_FETCH_SUCCESS,
@@ -51,7 +51,12 @@ import {
   DIRECTORY_EXPAND_SUCCESS,
   DIRECTORY_EXPAND_FAIL,
 } from 'mastodon/actions/directory';
-import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
+import {
+  FEATURED_TAGS_FETCH_REQUEST,
+  FEATURED_TAGS_FETCH_SUCCESS,
+  FEATURED_TAGS_FETCH_FAIL,
+} from 'mastodon/actions/featured_tags';
+import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
 
 const initialListState = ImmutableMap({
   next: null,
@@ -67,6 +72,7 @@ const initialState = ImmutableMap({
   follow_requests: initialListState,
   blocks: initialListState,
   mutes: initialListState,
+  featured_tags: initialListState,
 });
 
 const normalizeList = (state, path, accounts, next) => {
@@ -89,6 +95,18 @@ const normalizeFollowRequest = (state, notification) => {
   });
 };
 
+const normalizeFeaturedTag = (featuredTags, accountId) => {
+  const normalizeFeaturedTag = { ...featuredTags, accountId: accountId };
+  return fromJS(normalizeFeaturedTag);
+};
+
+const normalizeFeaturedTags = (state, path, featuredTags, accountId) => {
+  return state.setIn(path, ImmutableMap({
+    items: ImmutableList(featuredTags.map(featuredTag => normalizeFeaturedTag(featuredTag, accountId)).sort((a, b) => b.get('statuses_count') - a.get('statuses_count'))),
+    isLoading: false,
+  }));
+};
+
 export default function userLists(state = initialState, action) {
   switch(action.type) {
   case FOLLOWERS_FETCH_SUCCESS:
@@ -160,6 +178,12 @@ export default function userLists(state = initialState, action) {
   case DIRECTORY_FETCH_FAIL:
   case DIRECTORY_EXPAND_FAIL:
     return state.setIn(['directory', 'isLoading'], false);
+  case FEATURED_TAGS_FETCH_SUCCESS:
+    return normalizeFeaturedTags(state, ['featured_tags', action.id], action.tags, action.id);
+  case FEATURED_TAGS_FETCH_REQUEST:
+    return state.setIn(['featured_tags', action.id, 'isLoading'], true);
+  case FEATURED_TAGS_FETCH_FAIL:
+    return state.setIn(['featured_tags', action.id, 'isLoading'], false);
   default:
     return state;
   }
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index d4657d180..f8f9200f4 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -7338,6 +7338,33 @@ noscript {
         }
       }
     }
+
+    &__hashtag-links {
+      overflow: hidden;
+      padding: 10px 5px;
+      margin: 0;
+      color: $darker-text-color;
+      border-bottom: 1px solid lighten($ui-base-color, 12%);
+
+      a {
+        display: inline-block;
+        color: $darker-text-color;
+        text-decoration: none;
+        padding: 5px 10px;
+        font-weight: 500;
+
+        strong {
+          font-weight: 700;
+          color: $primary-text-color;
+        }
+      }
+
+      a.active {
+        color: darken($ui-base-color, 4%);
+        background: $darker-text-color;
+        border-radius: 18px;
+      }
+    }
   }
 
   &__account-note {