Merge pull request #1274 from ThibG/glitch-soc/merge-upstream

Merge upstream changes

25 files changed, 224 insertions, 68 deletions

diff --git a/app/controllers/api/v1/announcements_controller.rb b/app/controllers/api/v1/announcements_controller.rb
index 6724fac2e..1e692ff75 100644
--- a/app/controllers/api/v1/announcements_controller.rb
+++ b/app/controllers/api/v1/announcements_controller.rb
@@ -19,11 +19,7 @@ class Api::V1::AnnouncementsController < Api::BaseController
 
   def set_announcements
     @announcements = begin
-      scope = Announcement.published
-
-      scope.merge!(Announcement.without_muted(current_account)) unless truthy_param?(:with_dismissed)
-
-      scope.chronological
+      Announcement.published.chronological
     end
   end
 
diff --git a/app/javascript/flavours/glitch/actions/announcements.js b/app/javascript/flavours/glitch/actions/announcements.js
index a19a4c708..871409d43 100644
--- a/app/javascript/flavours/glitch/actions/announcements.js
+++ b/app/javascript/flavours/glitch/actions/announcements.js
@@ -7,6 +7,10 @@ export const ANNOUNCEMENTS_FETCH_FAIL    = 'ANNOUNCEMENTS_FETCH_FAIL';
 export const ANNOUNCEMENTS_UPDATE        = 'ANNOUNCEMENTS_UPDATE';
 export const ANNOUNCEMENTS_DELETE        = 'ANNOUNCEMENTS_DELETE';
 
+export const ANNOUNCEMENTS_DISMISS_REQUEST = 'ANNOUNCEMENTS_DISMISS_REQUEST';
+export const ANNOUNCEMENTS_DISMISS_SUCCESS = 'ANNOUNCEMENTS_DISMISS_SUCCESS';
+export const ANNOUNCEMENTS_DISMISS_FAIL    = 'ANNOUNCEMENTS_DISMISS_FAIL';
+
 export const ANNOUNCEMENTS_REACTION_ADD_REQUEST = 'ANNOUNCEMENTS_REACTION_ADD_REQUEST';
 export const ANNOUNCEMENTS_REACTION_ADD_SUCCESS = 'ANNOUNCEMENTS_REACTION_ADD_SUCCESS';
 export const ANNOUNCEMENTS_REACTION_ADD_FAIL    = 'ANNOUNCEMENTS_REACTION_ADD_FAIL';
@@ -56,6 +60,32 @@ export const updateAnnouncements = announcement => ({
   announcement: normalizeAnnouncement(announcement),
 });
 
+export const dismissAnnouncement = announcementId => (dispatch, getState) => {
+  dispatch(dismissAnnouncementRequest(announcementId));
+
+  api(getState).post(`/api/v1/announcements/${announcementId}/dismiss`).then(() => {
+    dispatch(dismissAnnouncementSuccess(announcementId));
+  }).catch(error => {
+    dispatch(dismissAnnouncementFail(announcementId, error));
+  });
+};
+
+export const dismissAnnouncementRequest = announcementId => ({
+  type: ANNOUNCEMENTS_DISMISS_REQUEST,
+  id: announcementId,
+});
+
+export const dismissAnnouncementSuccess = announcementId => ({
+  type: ANNOUNCEMENTS_DISMISS_SUCCESS,
+  id: announcementId,
+});
+
+export const dismissAnnouncementFail = (announcementId, error) => ({
+  type: ANNOUNCEMENTS_DISMISS_FAIL,
+  id: announcementId,
+  error,
+});
+
 export const addReaction = (announcementId, name) => (dispatch, getState) => {
   const announcement = getState().getIn(['announcements', 'items']).find(x => x.get('id') === announcementId);
 
diff --git a/app/javascript/flavours/glitch/features/getting_started/components/announcements.js b/app/javascript/flavours/glitch/features/getting_started/components/announcements.js
index 4eeac8560..e34c9009b 100644
--- a/app/javascript/flavours/glitch/features/getting_started/components/announcements.js
+++ b/app/javascript/flavours/glitch/features/getting_started/components/announcements.js
@@ -302,10 +302,23 @@ class Announcement extends ImmutablePureComponent {
     addReaction: PropTypes.func.isRequired,
     removeReaction: PropTypes.func.isRequired,
     intl: PropTypes.object.isRequired,
+    selected: PropTypes.bool,
   };
 
+  state = {
+    unread: !this.props.announcement.get('read'),
+  };
+
+  componentDidUpdate () {
+    const { selected, announcement } = this.props;
+    if (!selected && this.state.unread !== !announcement.get('read')) {
+      this.setState({ unread: !announcement.get('read') });
+    }
+  }
+
   render () {
     const { announcement } = this.props;
+    const { unread } = this.state;
     const startsAt = announcement.get('starts_at') && new Date(announcement.get('starts_at'));
     const endsAt = announcement.get('ends_at') && new Date(announcement.get('ends_at'));
     const now = new Date();
@@ -330,6 +343,8 @@ class Announcement extends ImmutablePureComponent {
           removeReaction={this.props.removeReaction}
           emojiMap={this.props.emojiMap}
         />
+
+        {unread && <span className='announcements__item__unread' />}
       </div>
     );
   }
@@ -342,6 +357,7 @@ class Announcements extends ImmutablePureComponent {
   static propTypes = {
     announcements: ImmutablePropTypes.list,
     emojiMap: ImmutablePropTypes.map.isRequired,
+    dismissAnnouncement: PropTypes.func.isRequired,
     addReaction: PropTypes.func.isRequired,
     removeReaction: PropTypes.func.isRequired,
     intl: PropTypes.object.isRequired,
@@ -351,6 +367,21 @@ class Announcements extends ImmutablePureComponent {
     index: 0,
   };
 
+  componentDidMount () {
+    this._markAnnouncementAsRead();
+  }
+
+  componentDidUpdate () {
+    this._markAnnouncementAsRead();
+  }
+
+  _markAnnouncementAsRead () {
+    const { dismissAnnouncement, announcements } = this.props;
+    const { index } = this.state;
+    const announcement = announcements.get(index);
+    if (!announcement.get('read')) dismissAnnouncement(announcement.get('id'));
+  }
+
   handleChangeIndex = index => {
     this.setState({ index: index % this.props.announcements.size });
   }
@@ -377,7 +408,7 @@ class Announcements extends ImmutablePureComponent {
 
         <div className='announcements__container'>
           <ReactSwipeableViews animateHeight={!reduceMotion} adjustHeight={reduceMotion} index={index} onChangeIndex={this.handleChangeIndex}>
-            {announcements.map(announcement => (
+            {announcements.map((announcement, idx) => (
               <Announcement
                 key={announcement.get('id')}
                 announcement={announcement}
@@ -385,6 +416,7 @@ class Announcements extends ImmutablePureComponent {
                 addReaction={this.props.addReaction}
                 removeReaction={this.props.removeReaction}
                 intl={intl}
+                selected={index === idx}
               />
             ))}
           </ReactSwipeableViews>
diff --git a/app/javascript/flavours/glitch/features/getting_started/containers/announcements_container.js b/app/javascript/flavours/glitch/features/getting_started/containers/announcements_container.js
index 8fa695e34..d472323f8 100644
--- a/app/javascript/flavours/glitch/features/getting_started/containers/announcements_container.js
+++ b/app/javascript/flavours/glitch/features/getting_started/containers/announcements_container.js
@@ -1,5 +1,5 @@
 import { connect } from 'react-redux';
-import { addReaction, removeReaction } from 'flavours/glitch/actions/announcements';
+import { addReaction, removeReaction, dismissAnnouncement } from 'flavours/glitch/actions/announcements';
 import Announcements from '../components/announcements';
 import { createSelector } from 'reselect';
 import { Map as ImmutableMap } from 'immutable';
@@ -12,6 +12,7 @@ const mapStateToProps = state => ({
 });
 
 const mapDispatchToProps = dispatch => ({
+  dismissAnnouncement: id => dispatch(dismissAnnouncement(id)),
   addReaction: (id, name) => dispatch(addReaction(id, name)),
   removeReaction: (id, name) => dispatch(removeReaction(id, name)),
 });
diff --git a/app/javascript/flavours/glitch/features/home_timeline/index.js b/app/javascript/flavours/glitch/features/home_timeline/index.js
index 5e36e5f76..cc8e4664c 100644
--- a/app/javascript/flavours/glitch/features/home_timeline/index.js
+++ b/app/javascript/flavours/glitch/features/home_timeline/index.js
@@ -24,7 +24,7 @@ const mapStateToProps = state => ({
   hasUnread: state.getIn(['timelines', 'home', 'unread']) > 0,
   isPartial: state.getIn(['timelines', 'home', 'isPartial']),
   hasAnnouncements: !state.getIn(['announcements', 'items']).isEmpty(),
-  unreadAnnouncements: state.getIn(['announcements', 'unread']).size,
+  unreadAnnouncements: state.getIn(['announcements', 'items']).count(item => !item.get('read')),
   showAnnouncements: state.getIn(['announcements', 'show']),
 });
 
diff --git a/app/javascript/flavours/glitch/reducers/announcements.js b/app/javascript/flavours/glitch/reducers/announcements.js
index 1653318ce..34e08eac8 100644
--- a/app/javascript/flavours/glitch/reducers/announcements.js
+++ b/app/javascript/flavours/glitch/reducers/announcements.js
@@ -10,14 +10,14 @@ import {
   ANNOUNCEMENTS_REACTION_REMOVE_FAIL,
   ANNOUNCEMENTS_TOGGLE_SHOW,
   ANNOUNCEMENTS_DELETE,
+  ANNOUNCEMENTS_DISMISS_SUCCESS,
 } from '../actions/announcements';
-import { Map as ImmutableMap, List as ImmutableList, Set as ImmutableSet, fromJS } from 'immutable';
+import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
 
 const initialState = ImmutableMap({
   items: ImmutableList(),
   isLoading: false,
   show: false,
-  unread: ImmutableSet(),
 });
 
 const updateReaction = (state, id, name, updater) => state.update('items', list => list.map(announcement => {
@@ -42,24 +42,11 @@ const addReaction = (state, id, name) => updateReaction(state, id, name, x => x.
 
 const removeReaction = (state, id, name) => updateReaction(state, id, name, x => x.set('me', false).update('count', y => y - 1));
 
-const addUnread = (state, items) => {
-  if (state.get('show')) {
-    return state;
-  }
-
-  const newIds = ImmutableSet(items.map(x => x.get('id')));
-  const oldIds = ImmutableSet(state.get('items').map(x => x.get('id')));
-
-  return state.update('unread', unread => unread.union(newIds.subtract(oldIds)));
-};
-
 const sortAnnouncements = list => list.sortBy(x => x.get('starts_at') || x.get('published_at'));
 
 const updateAnnouncement = (state, announcement) => {
   const idx = state.get('items').findIndex(x => x.get('id') === announcement.get('id'));
 
-  state = addUnread(state, [announcement]);
-
   if (idx > -1) {
     // Deep merge is used because announcements from the streaming API do not contain
     // personalized data about which reactions have been selected by the given user,
@@ -74,7 +61,6 @@ export default function announcementsReducer(state = initialState, action) {
   switch(action.type) {
   case ANNOUNCEMENTS_TOGGLE_SHOW:
     return state.withMutations(map => {
-      if (!map.get('show')) map.set('unread', ImmutableSet());
       map.set('show', !map.get('show'));
     });
   case ANNOUNCEMENTS_FETCH_REQUEST:
@@ -83,10 +69,6 @@ export default function announcementsReducer(state = initialState, action) {
     return state.withMutations(map => {
       const items = fromJS(action.announcements);
 
-      map.set('unread', ImmutableSet());
-
-      addUnread(map, items);
-
       map.set('items', items);
       map.set('isLoading', false);
     });
@@ -102,8 +84,10 @@ export default function announcementsReducer(state = initialState, action) {
   case ANNOUNCEMENTS_REACTION_REMOVE_REQUEST:
   case ANNOUNCEMENTS_REACTION_ADD_FAIL:
     return removeReaction(state, action.id, action.name);
+  case ANNOUNCEMENTS_DISMISS_SUCCESS:
+    return updateAnnouncement(state, fromJS({ 'id': action.id, 'read': true }));
   case ANNOUNCEMENTS_DELETE:
-    return state.update('unread', set => set.delete(action.id)).update('items', list => {
+    return state.update('items', list => {
       const idx = list.findIndex(x => x.get('id') === action.id);
 
       if (idx > -1) {
diff --git a/app/javascript/flavours/glitch/reducers/statuses.js b/app/javascript/flavours/glitch/reducers/statuses.js
index ee8ac929d..8926e49f1 100644
--- a/app/javascript/flavours/glitch/reducers/statuses.js
+++ b/app/javascript/flavours/glitch/reducers/statuses.js
@@ -41,8 +41,7 @@ export default function statuses(state = initialState, action) {
   case FAVOURITE_REQUEST:
     return state.setIn([action.status.get('id'), 'favourited'], true);
   case UNFAVOURITE_SUCCESS:
-    const favouritesCount = action.status.get('favourites_count');
-    return state.setIn([action.status.get('id'), 'favourites_count'], favouritesCount - 1);
+    return state.updateIn([action.status.get('id'), 'favourites_count'], x => Math.max(0, x - 1));
   case FAVOURITE_FAIL:
     return state.get(action.status.get('id')) === undefined ? state : state.setIn([action.status.get('id'), 'favourited'], false);
   case BOOKMARK_REQUEST:
diff --git a/app/javascript/flavours/glitch/styles/components/announcements.scss b/app/javascript/flavours/glitch/styles/components/announcements.scss
index 909957bf1..ac4c199cd 100644
--- a/app/javascript/flavours/glitch/styles/components/announcements.scss
+++ b/app/javascript/flavours/glitch/styles/components/announcements.scss
@@ -81,6 +81,18 @@
       font-weight: 500;
       margin-bottom: 10px;
     }
+
+    &__unread {
+      position: absolute;
+      top: 15px;
+      right: 15px;
+      display: inline-block;
+      background: $highlight-text-color;
+      border-radius: 50%;
+      width: 0.625rem;
+      height: 0.625rem;
+      margin: 0 .15em;
+    }
   }
 
   &__pagination {
diff --git a/app/javascript/flavours/glitch/styles/components/drawer.scss b/app/javascript/flavours/glitch/styles/components/drawer.scss
index 93a3f62ed..d5463e406 100644
--- a/app/javascript/flavours/glitch/styles/components/drawer.scss
+++ b/app/javascript/flavours/glitch/styles/components/drawer.scss
@@ -210,7 +210,7 @@
     display: block;
     object-fit: contain;
     object-position: bottom left;
-    width: 100%;
+    width: 85%;
     height: 100%;
     pointer-events: none;
     user-drag: none;
diff --git a/app/javascript/flavours/glitch/styles/statuses.scss b/app/javascript/flavours/glitch/styles/statuses.scss
index 611d5185b..22fa7b3fd 100644
--- a/app/javascript/flavours/glitch/styles/statuses.scss
+++ b/app/javascript/flavours/glitch/styles/statuses.scss
@@ -222,3 +222,20 @@
     }
   }
 }
+
+.status__content__read-more-button {
+  display: block;
+  font-size: 15px;
+  line-height: 20px;
+  color: lighten($ui-highlight-color, 8%);
+  border: 0;
+  background: transparent;
+  padding: 0;
+  padding-top: 8px;
+  text-decoration: none;
+
+  &:hover,
+  &:active {
+    text-decoration: underline;
+  }
+}
diff --git a/app/javascript/mastodon/actions/announcements.js b/app/javascript/mastodon/actions/announcements.js
index f072a407f..1bdea909f 100644
--- a/app/javascript/mastodon/actions/announcements.js
+++ b/app/javascript/mastodon/actions/announcements.js
@@ -7,6 +7,10 @@ export const ANNOUNCEMENTS_FETCH_FAIL    = 'ANNOUNCEMENTS_FETCH_FAIL';
 export const ANNOUNCEMENTS_UPDATE        = 'ANNOUNCEMENTS_UPDATE';
 export const ANNOUNCEMENTS_DELETE        = 'ANNOUNCEMENTS_DELETE';
 
+export const ANNOUNCEMENTS_DISMISS_REQUEST = 'ANNOUNCEMENTS_DISMISS_REQUEST';
+export const ANNOUNCEMENTS_DISMISS_SUCCESS = 'ANNOUNCEMENTS_DISMISS_SUCCESS';
+export const ANNOUNCEMENTS_DISMISS_FAIL    = 'ANNOUNCEMENTS_DISMISS_FAIL';
+
 export const ANNOUNCEMENTS_REACTION_ADD_REQUEST = 'ANNOUNCEMENTS_REACTION_ADD_REQUEST';
 export const ANNOUNCEMENTS_REACTION_ADD_SUCCESS = 'ANNOUNCEMENTS_REACTION_ADD_SUCCESS';
 export const ANNOUNCEMENTS_REACTION_ADD_FAIL    = 'ANNOUNCEMENTS_REACTION_ADD_FAIL';
@@ -56,6 +60,32 @@ export const updateAnnouncements = announcement => ({
   announcement: normalizeAnnouncement(announcement),
 });
 
+export const dismissAnnouncement = announcementId => (dispatch, getState) => {
+  dispatch(dismissAnnouncementRequest(announcementId));
+
+  api(getState).post(`/api/v1/announcements/${announcementId}/dismiss`).then(() => {
+    dispatch(dismissAnnouncementSuccess(announcementId));
+  }).catch(error => {
+    dispatch(dismissAnnouncementFail(announcementId, error));
+  });
+};
+
+export const dismissAnnouncementRequest = announcementId => ({
+  type: ANNOUNCEMENTS_DISMISS_REQUEST,
+  id: announcementId,
+});
+
+export const dismissAnnouncementSuccess = announcementId => ({
+  type: ANNOUNCEMENTS_DISMISS_SUCCESS,
+  id: announcementId,
+});
+
+export const dismissAnnouncementFail = (announcementId, error) => ({
+  type: ANNOUNCEMENTS_DISMISS_FAIL,
+  id: announcementId,
+  error,
+});
+
 export const addReaction = (announcementId, name) => (dispatch, getState) => {
   const announcement = getState().getIn(['announcements', 'items']).find(x => x.get('id') === announcementId);
 
diff --git a/app/javascript/mastodon/features/getting_started/components/announcements.js b/app/javascript/mastodon/features/getting_started/components/announcements.js
index cf2abdd76..91cf6215e 100644
--- a/app/javascript/mastodon/features/getting_started/components/announcements.js
+++ b/app/javascript/mastodon/features/getting_started/components/announcements.js
@@ -302,10 +302,23 @@ class Announcement extends ImmutablePureComponent {
     addReaction: PropTypes.func.isRequired,
     removeReaction: PropTypes.func.isRequired,
     intl: PropTypes.object.isRequired,
+    selected: PropTypes.bool,
   };
 
+  state = {
+    unread: !this.props.announcement.get('read'),
+  };
+
+  componentDidUpdate () {
+    const { selected, announcement } = this.props;
+    if (!selected && this.state.unread !== !announcement.get('read')) {
+      this.setState({ unread: !announcement.get('read') });
+    }
+  }
+
   render () {
     const { announcement } = this.props;
+    const { unread } = this.state;
     const startsAt = announcement.get('starts_at') && new Date(announcement.get('starts_at'));
     const endsAt = announcement.get('ends_at') && new Date(announcement.get('ends_at'));
     const now = new Date();
@@ -330,6 +343,8 @@ class Announcement extends ImmutablePureComponent {
           removeReaction={this.props.removeReaction}
           emojiMap={this.props.emojiMap}
         />
+
+        {unread && <span className='announcements__item__unread' />}
       </div>
     );
   }
@@ -342,6 +357,7 @@ class Announcements extends ImmutablePureComponent {
   static propTypes = {
     announcements: ImmutablePropTypes.list,
     emojiMap: ImmutablePropTypes.map.isRequired,
+    dismissAnnouncement: PropTypes.func.isRequired,
     addReaction: PropTypes.func.isRequired,
     removeReaction: PropTypes.func.isRequired,
     intl: PropTypes.object.isRequired,
@@ -351,6 +367,21 @@ class Announcements extends ImmutablePureComponent {
     index: 0,
   };
 
+  componentDidMount () {
+    this._markAnnouncementAsRead();
+  }
+
+  componentDidUpdate () {
+    this._markAnnouncementAsRead();
+  }
+
+  _markAnnouncementAsRead () {
+    const { dismissAnnouncement, announcements } = this.props;
+    const { index } = this.state;
+    const announcement = announcements.get(index);
+    if (!announcement.get('read')) dismissAnnouncement(announcement.get('id'));
+  }
+
   handleChangeIndex = index => {
     this.setState({ index: index % this.props.announcements.size });
   }
@@ -377,7 +408,7 @@ class Announcements extends ImmutablePureComponent {
 
         <div className='announcements__container'>
           <ReactSwipeableViews animateHeight={!reduceMotion} adjustHeight={reduceMotion} index={index} onChangeIndex={this.handleChangeIndex}>
-            {announcements.map(announcement => (
+            {announcements.map((announcement, idx) => (
               <Announcement
                 key={announcement.get('id')}
                 announcement={announcement}
@@ -385,6 +416,7 @@ class Announcements extends ImmutablePureComponent {
                 addReaction={this.props.addReaction}
                 removeReaction={this.props.removeReaction}
                 intl={intl}
+                selected={index === idx}
               />
             ))}
           </ReactSwipeableViews>
diff --git a/app/javascript/mastodon/features/getting_started/containers/announcements_container.js b/app/javascript/mastodon/features/getting_started/containers/announcements_container.js
index 8c3fc2e6b..9d03ad6f7 100644
--- a/app/javascript/mastodon/features/getting_started/containers/announcements_container.js
+++ b/app/javascript/mastodon/features/getting_started/containers/announcements_container.js
@@ -1,5 +1,5 @@
 import { connect } from 'react-redux';
-import { addReaction, removeReaction } from 'mastodon/actions/announcements';
+import { addReaction, removeReaction, dismissAnnouncement } from 'mastodon/actions/announcements';
 import Announcements from '../components/announcements';
 import { createSelector } from 'reselect';
 import { Map as ImmutableMap } from 'immutable';
@@ -12,6 +12,7 @@ const mapStateToProps = state => ({
 });
 
 const mapDispatchToProps = dispatch => ({
+  dismissAnnouncement: id => dispatch(dismissAnnouncement(id)),
   addReaction: (id, name) => dispatch(addReaction(id, name)),
   removeReaction: (id, name) => dispatch(removeReaction(id, name)),
 });
diff --git a/app/javascript/mastodon/features/home_timeline/index.js b/app/javascript/mastodon/features/home_timeline/index.js
index 2bad22bc1..577ff33bb 100644
--- a/app/javascript/mastodon/features/home_timeline/index.js
+++ b/app/javascript/mastodon/features/home_timeline/index.js
@@ -24,7 +24,7 @@ const mapStateToProps = state => ({
   hasUnread: state.getIn(['timelines', 'home', 'unread']) > 0,
   isPartial: state.getIn(['timelines', 'home', 'isPartial']),
   hasAnnouncements: !state.getIn(['announcements', 'items']).isEmpty(),
-  unreadAnnouncements: state.getIn(['announcements', 'unread']).size,
+  unreadAnnouncements: state.getIn(['announcements', 'items']).count(item => !item.get('read')),
   showAnnouncements: state.getIn(['announcements', 'show']),
 });
 
diff --git a/app/javascript/mastodon/locales/defaultMessages.json b/app/javascript/mastodon/locales/defaultMessages.json
index d6f490fcf..18692bc44 100644
--- a/app/javascript/mastodon/locales/defaultMessages.json
+++ b/app/javascript/mastodon/locales/defaultMessages.json
@@ -294,6 +294,10 @@
   {
     "descriptors": [
       {
+        "defaultMessage": "today",
+        "id": "relative_time.today"
+      },
+      {
         "defaultMessage": "now",
         "id": "relative_time.just_now"
       },
@@ -1743,6 +1747,14 @@
         "id": "column.home"
       },
       {
+        "defaultMessage": "Show announcements",
+        "id": "home.show_announcements"
+      },
+      {
+        "defaultMessage": "Hide announcements",
+        "id": "home.hide_announcements"
+      },
+      {
         "defaultMessage": "Your home timeline is empty! Visit {public} or use search to get started and meet other users.",
         "id": "empty_column.home"
       },
diff --git a/app/javascript/mastodon/locales/en.json b/app/javascript/mastodon/locales/en.json
index 5871819a9..e25199905 100644
--- a/app/javascript/mastodon/locales/en.json
+++ b/app/javascript/mastodon/locales/en.json
@@ -188,6 +188,8 @@
   "home.column_settings.basic": "Basic",
   "home.column_settings.show_reblogs": "Show boosts",
   "home.column_settings.show_replies": "Show replies",
+  "home.hide_announcements": "Hide announcements",
+  "home.show_announcements": "Show announcements",
   "intervals.full.days": "{number, plural, one {# day} other {# days}}",
   "intervals.full.hours": "{number, plural, one {# hour} other {# hours}}",
   "intervals.full.minutes": "{number, plural, one {# minute} other {# minutes}}",
@@ -338,6 +340,7 @@
   "relative_time.just_now": "now",
   "relative_time.minutes": "{number}m",
   "relative_time.seconds": "{number}s",
+  "relative_time.today": "today",
   "reply_indicator.cancel": "Cancel",
   "report.forward": "Forward to {target}",
   "report.forward_hint": "The account is from another server. Send an anonymized copy of the report there as well?",
diff --git a/app/javascript/mastodon/reducers/announcements.js b/app/javascript/mastodon/reducers/announcements.js
index 1653318ce..34e08eac8 100644
--- a/app/javascript/mastodon/reducers/announcements.js
+++ b/app/javascript/mastodon/reducers/announcements.js
@@ -10,14 +10,14 @@ import {
   ANNOUNCEMENTS_REACTION_REMOVE_FAIL,
   ANNOUNCEMENTS_TOGGLE_SHOW,
   ANNOUNCEMENTS_DELETE,
+  ANNOUNCEMENTS_DISMISS_SUCCESS,
 } from '../actions/announcements';
-import { Map as ImmutableMap, List as ImmutableList, Set as ImmutableSet, fromJS } from 'immutable';
+import { Map as ImmutableMap, List as ImmutableList, fromJS } from 'immutable';
 
 const initialState = ImmutableMap({
   items: ImmutableList(),
   isLoading: false,
   show: false,
-  unread: ImmutableSet(),
 });
 
 const updateReaction = (state, id, name, updater) => state.update('items', list => list.map(announcement => {
@@ -42,24 +42,11 @@ const addReaction = (state, id, name) => updateReaction(state, id, name, x => x.
 
 const removeReaction = (state, id, name) => updateReaction(state, id, name, x => x.set('me', false).update('count', y => y - 1));
 
-const addUnread = (state, items) => {
-  if (state.get('show')) {
-    return state;
-  }
-
-  const newIds = ImmutableSet(items.map(x => x.get('id')));
-  const oldIds = ImmutableSet(state.get('items').map(x => x.get('id')));
-
-  return state.update('unread', unread => unread.union(newIds.subtract(oldIds)));
-};
-
 const sortAnnouncements = list => list.sortBy(x => x.get('starts_at') || x.get('published_at'));
 
 const updateAnnouncement = (state, announcement) => {
   const idx = state.get('items').findIndex(x => x.get('id') === announcement.get('id'));
 
-  state = addUnread(state, [announcement]);
-
   if (idx > -1) {
     // Deep merge is used because announcements from the streaming API do not contain
     // personalized data about which reactions have been selected by the given user,
@@ -74,7 +61,6 @@ export default function announcementsReducer(state = initialState, action) {
   switch(action.type) {
   case ANNOUNCEMENTS_TOGGLE_SHOW:
     return state.withMutations(map => {
-      if (!map.get('show')) map.set('unread', ImmutableSet());
       map.set('show', !map.get('show'));
     });
   case ANNOUNCEMENTS_FETCH_REQUEST:
@@ -83,10 +69,6 @@ export default function announcementsReducer(state = initialState, action) {
     return state.withMutations(map => {
       const items = fromJS(action.announcements);
 
-      map.set('unread', ImmutableSet());
-
-      addUnread(map, items);
-
       map.set('items', items);
       map.set('isLoading', false);
     });
@@ -102,8 +84,10 @@ export default function announcementsReducer(state = initialState, action) {
   case ANNOUNCEMENTS_REACTION_REMOVE_REQUEST:
   case ANNOUNCEMENTS_REACTION_ADD_FAIL:
     return removeReaction(state, action.id, action.name);
+  case ANNOUNCEMENTS_DISMISS_SUCCESS:
+    return updateAnnouncement(state, fromJS({ 'id': action.id, 'read': true }));
   case ANNOUNCEMENTS_DELETE:
-    return state.update('unread', set => set.delete(action.id)).update('items', list => {
+    return state.update('items', list => {
       const idx = list.findIndex(x => x.get('id') === action.id);
 
       if (idx > -1) {
diff --git a/app/javascript/mastodon/reducers/statuses.js b/app/javascript/mastodon/reducers/statuses.js
index 398a48cff..2554c008d 100644
--- a/app/javascript/mastodon/reducers/statuses.js
+++ b/app/javascript/mastodon/reducers/statuses.js
@@ -42,8 +42,7 @@ export default function statuses(state = initialState, action) {
   case FAVOURITE_REQUEST:
     return state.setIn([action.status.get('id'), 'favourited'], true);
   case UNFAVOURITE_SUCCESS:
-    const favouritesCount = action.status.get('favourites_count');
-    return state.setIn([action.status.get('id'), 'favourites_count'], favouritesCount - 1);
+    return state.updateIn([action.status.get('id'), 'favourites_count'], x => Math.max(0, x - 1));
   case FAVOURITE_FAIL:
     return state.get(action.status.get('id')) === undefined ? state : state.setIn([action.status.get('id'), 'favourited'], false);
   case BOOKMARK_REQUEST:
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 85b3b0cec..54372022a 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -923,6 +923,7 @@
   background: transparent;
   padding: 0;
   padding-top: 8px;
+  text-decoration: none;
 
   &:hover,
   &:active {
@@ -2522,7 +2523,7 @@ a.account__display-name {
     display: block;
     object-fit: contain;
     object-position: bottom left;
-    width: 100%;
+    width: 85%;
     height: 100%;
     pointer-events: none;
     user-drag: none;
@@ -6693,6 +6694,18 @@ noscript {
       font-weight: 500;
       margin-bottom: 10px;
     }
+
+    &__unread {
+      position: absolute;
+      top: 15px;
+      right: 15px;
+      display: inline-block;
+      background: $highlight-text-color;
+      border-radius: 50%;
+      width: 0.625rem;
+      height: 0.625rem;
+      margin: 0 .15em;
+    }
   }
 
   &__pagination {
diff --git a/app/mailers/user_mailer.rb b/app/mailers/user_mailer.rb
index c30bec80b..88a11f761 100644
--- a/app/mailers/user_mailer.rb
+++ b/app/mailers/user_mailer.rb
@@ -6,6 +6,7 @@ class UserMailer < Devise::Mailer
   helper :accounts
   helper :application
   helper :instance
+  helper :statuses
 
   add_template_helper RoutingHelper
 
diff --git a/app/models/account.rb b/app/models/account.rb
index b856d1c76..e46888415 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -74,14 +74,13 @@ class Account < ApplicationRecord
   enum protocol: [:ostatus, :activitypub]
 
   validates :username, presence: true
+  validates_with UniqueUsernameValidator, if: -> { will_save_change_to_username? }
 
   # Remote user validations
-  validates :username, uniqueness: { scope: :domain, case_sensitive: true }, if: -> { !local? && will_save_change_to_username? }
   validates :username, format: { with: /\A#{USERNAME_RE}\z/i }, if: -> { !local? && will_save_change_to_username? }
 
   # Local user validations
   validates :username, format: { with: /\A[a-z0-9_]+\z/i }, length: { maximum: 30 }, if: -> { local? && will_save_change_to_username? && actor_type != 'Application' }
-  validates_with UniqueUsernameValidator, if: -> { local? && will_save_change_to_username? }
   validates_with UnreservedUsernameValidator, if: -> { local? && will_save_change_to_username? }
   validates :display_name, length: { maximum: MAX_DISPLAY_NAME_LENGTH }, if: -> { local? && will_save_change_to_display_name? }
   validates :note, note_length: { maximum: MAX_NOTE_LENGTH }, if: -> { local? && will_save_change_to_note? }
diff --git a/app/models/concerns/account_finder_concern.rb b/app/models/concerns/account_finder_concern.rb
index a54c2174d..04b2c981b 100644
--- a/app/models/concerns/account_finder_concern.rb
+++ b/app/models/concerns/account_finder_concern.rb
@@ -48,7 +48,7 @@ module AccountFinderConcern
     end
 
     def with_usernames
-      Account.where.not(username: '')
+      Account.where.not(Account.arel_table[:username].lower.eq '')
     end
 
     def matching_username
@@ -56,11 +56,7 @@ module AccountFinderConcern
     end
 
     def matching_domain
-      if domain.nil?
-        Account.where(domain: nil)
-      else
-        Account.where(Account.arel_table[:domain].lower.eq domain.to_s.downcase)
-      end
+      Account.where(Account.arel_table[:domain].lower.eq(domain.nil? ? nil : domain.to_s.downcase))
     end
   end
 end
diff --git a/app/serializers/rest/announcement_serializer.rb b/app/serializers/rest/announcement_serializer.rb
index ae962aa1d..ae72f9ace 100644
--- a/app/serializers/rest/announcement_serializer.rb
+++ b/app/serializers/rest/announcement_serializer.rb
@@ -4,15 +4,25 @@ class REST::AnnouncementSerializer < ActiveModel::Serializer
   attributes :id, :content, :starts_at, :ends_at, :all_day,
              :published_at, :updated_at
 
+  attribute :read, if: :current_user?
+
   has_many :mentions
   has_many :tags, serializer: REST::StatusSerializer::TagSerializer
   has_many :emojis, serializer: REST::CustomEmojiSerializer
   has_many :reactions, serializer: REST::ReactionSerializer
 
+  def current_user?
+    !current_user.nil?
+  end
+
   def id
     object.id.to_s
   end
 
+  def read
+    object.announcement_mutes.where(account: current_user.account).exists?
+  end
+
   def content
     Formatter.instance.linkify(object.text)
   end
diff --git a/app/validators/unique_username_validator.rb b/app/validators/unique_username_validator.rb
index 4e24e3f5f..f87eb06ba 100644
--- a/app/validators/unique_username_validator.rb
+++ b/app/validators/unique_username_validator.rb
@@ -7,8 +7,9 @@ class UniqueUsernameValidator < ActiveModel::Validator
     return if account.username.nil?
 
     normalized_username = account.username.downcase
+    normalized_domain = account.domain&.downcase
 
-    scope = Account.where(domain: nil).where('lower(username) = ?', normalized_username)
+    scope = Account.where(Account.arel_table[:username].lower.eq normalized_username).where(Account.arel_table[:domain].lower.eq normalized_domain)
     scope = scope.where.not(id: account.id) if account.persisted?
 
     account.errors.add(:username, :taken) if scope.exists?
diff --git a/app/views/statuses/_simple_status.html.haml b/app/views/statuses/_simple_status.html.haml
index 4e17b6347..8a418a1d5 100644
--- a/app/views/statuses/_simple_status.html.haml
+++ b/app/views/statuses/_simple_status.html.haml
@@ -45,6 +45,10 @@
   - elsif status.preview_card
     = react_component :card, 'maxDescription': 160, card: ActiveModelSerializers::SerializableResource.new(status.preview_card, serializer: REST::PreviewCardSerializer).as_json
 
+  - if !status.in_reply_to_id.nil? && status.in_reply_to_account_id == status.account.id
+    = link_to ActivityPub::TagManager.instance.url_for(status), class: 'status__content__read-more-button', target: stream_link_target, rel: 'noopener noreferrer' do
+      = t 'statuses.show_thread'
+
   .status__action-bar
     .status__action-bar__counter
       = link_to remote_interaction_path(status, type: :reply), class: 'status__action-bar-button icon-button modal-button', style: 'font-size: 18px; width: 23.1429px; height: 23.1429px; line-height: 23.15px;' do