Add follow_request notification type (#12198)

* Add follow_request notification type

The notification type already existed in the backend but was never pushed
to the front-end. This also means translation strings were also available
for the backend, from the notification mailer.

Unlike other notification types, these are off by default, to match what
I remember of Gargron's view on the topic: that follow requests should not
clutter notifications and should instead be reviewed at the user's own
leisure in the dedicated column.

Since follow requests have their own column, I've deemed it unnecessary to
add a specific tab for them in the notification quick filter.

* Show follow request link in single-column if there are pending requests, even if account isn't locked

* Push follow requests from notifications to the follow_requests list

* Offer to accept or reject follow request from the notification

* Redesign follow request notification

16 files changed, 158 insertions, 48 deletions

diff --git a/app/controllers/api/v1/push/subscriptions_controller.rb b/app/controllers/api/v1/push/subscriptions_controller.rb
index 1b658f870..1cbc92b93 100644
--- a/app/controllers/api/v1/push/subscriptions_controller.rb
+++ b/app/controllers/api/v1/push/subscriptions_controller.rb
@@ -51,6 +51,6 @@ class Api::V1::Push::SubscriptionsController < Api::BaseController
 
   def data_params
     return {} if params[:data].blank?
-    params.require(:data).permit(alerts: [:follow, :favourite, :reblog, :mention, :poll])
+    params.require(:data).permit(alerts: [:follow, :follow_request, :favourite, :reblog, :mention, :poll])
   end
 end
diff --git a/app/controllers/api/web/push_subscriptions_controller.rb b/app/controllers/api/web/push_subscriptions_controller.rb
index d8153e082..f388b17e5 100644
--- a/app/controllers/api/web/push_subscriptions_controller.rb
+++ b/app/controllers/api/web/push_subscriptions_controller.rb
@@ -19,6 +19,7 @@ class Api::Web::PushSubscriptionsController < Api::Web::BaseController
     data = {
       alerts: {
         follow: alerts_enabled,
+        follow_request: false,
         favourite: alerts_enabled,
         reblog: alerts_enabled,
         mention: alerts_enabled,
@@ -58,6 +59,6 @@ class Api::Web::PushSubscriptionsController < Api::Web::BaseController
   end
 
   def data_params
-    @data_params ||= params.require(:data).permit(alerts: [:follow, :favourite, :reblog, :mention, :poll])
+    @data_params ||= params.require(:data).permit(alerts: [:follow, :follow_request, :favourite, :reblog, :mention, :poll])
   end
 end
diff --git a/app/javascript/mastodon/actions/notifications.js b/app/javascript/mastodon/actions/notifications.js
index 3a92e0224..798f9b37e 100644
--- a/app/javascript/mastodon/actions/notifications.js
+++ b/app/javascript/mastodon/actions/notifications.js
@@ -110,7 +110,7 @@ export function updateNotifications(notification, intlMessages, intlLocale) {
 const excludeTypesFromSettings = state => state.getIn(['settings', 'notifications', 'shows']).filter(enabled => !enabled).keySeq().toJS();
 
 const excludeTypesFromFilter = filter => {
-  const allTypes = ImmutableList(['follow', 'favourite', 'reblog', 'mention', 'poll']);
+  const allTypes = ImmutableList(['follow', 'follow_request', 'favourite', 'reblog', 'mention', 'poll']);
   return allTypes.filterNot(item => item === filter).toJS();
 };
 
diff --git a/app/javascript/mastodon/features/notifications/components/column_settings.js b/app/javascript/mastodon/features/notifications/components/column_settings.js
index 60a86312a..8bd03fbda 100644
--- a/app/javascript/mastodon/features/notifications/components/column_settings.js
+++ b/app/javascript/mastodon/features/notifications/components/column_settings.js
@@ -57,6 +57,17 @@ export default class ColumnSettings extends React.PureComponent {
           </div>
         </div>
 
+        <div role='group' aria-labelledby='notifications-follow-request'>
+          <span id='notifications-follow-request' className='column-settings__section'><FormattedMessage id='notifications.column_settings.follow_request' defaultMessage='New follow requests:' /></span>
+
+          <div className='column-settings__row'>
+            <SettingToggle prefix='notifications_desktop' settings={settings} settingPath={['alerts', 'follow_request']} onChange={onChange} label={alertStr} />
+            {showPushSettings && <SettingToggle prefix='notifications_push' settings={pushSettings} settingPath={['alerts', 'follow_request']} onChange={this.onPushChange} label={pushStr} />}
+            <SettingToggle prefix='notifications' settings={settings} settingPath={['shows', 'follow_request']} onChange={onChange} label={showStr} />
+            <SettingToggle prefix='notifications' settings={settings} settingPath={['sounds', 'follow_request']} onChange={onChange} label={soundStr} />
+          </div>
+        </div>
+
         <div role='group' aria-labelledby='notifications-favourite'>
           <span id='notifications-favourite' className='column-settings__section'><FormattedMessage id='notifications.column_settings.favourite' defaultMessage='Favourites:' /></span>
 
diff --git a/app/javascript/mastodon/features/notifications/components/follow_request.js b/app/javascript/mastodon/features/notifications/components/follow_request.js
new file mode 100644
index 000000000..a80cfb2fa
--- /dev/null
+++ b/app/javascript/mastodon/features/notifications/components/follow_request.js
@@ -0,0 +1,59 @@
+import React, { Fragment } from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import PropTypes from 'prop-types';
+import Avatar from 'mastodon/components/avatar';
+import DisplayName from 'mastodon/components/display_name';
+import Permalink from 'mastodon/components/permalink';
+import IconButton from 'mastodon/components/icon_button';
+import { defineMessages, injectIntl } from 'react-intl';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+
+const messages = defineMessages({
+  authorize: { id: 'follow_request.authorize', defaultMessage: 'Authorize' },
+  reject: { id: 'follow_request.reject', defaultMessage: 'Reject' },
+});
+
+export default @injectIntl
+class FollowRequest extends ImmutablePureComponent {
+
+  static propTypes = {
+    account: ImmutablePropTypes.map.isRequired,
+    onAuthorize: PropTypes.func.isRequired,
+    onReject: PropTypes.func.isRequired,
+    intl: PropTypes.object.isRequired,
+  };
+
+  render () {
+    const { intl, hidden, account, onAuthorize, onReject } = this.props;
+
+    if (!account) {
+      return <div />;
+    }
+
+    if (hidden) {
+      return (
+        <Fragment>
+          {account.get('display_name')}
+          {account.get('username')}
+        </Fragment>
+      );
+    }
+
+    return (
+      <div className='account'>
+        <div className='account__wrapper'>
+          <Permalink key={account.get('id')} className='account__display-name' title={account.get('acct')} href={account.get('url')} to={`/accounts/${account.get('id')}`}>
+            <div className='account__avatar-wrapper'><Avatar account={account} size={36} /></div>
+            <DisplayName account={account} />
+          </Permalink>
+
+          <div className='account__relationship'>
+            <IconButton title={intl.formatMessage(messages.authorize)} icon='check' onClick={onAuthorize} />
+            <IconButton title={intl.formatMessage(messages.reject)} icon='times' onClick={onReject} />
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/notifications/components/notification.js b/app/javascript/mastodon/features/notifications/components/notification.js
index 2dea8afa7..74065e5e2 100644
--- a/app/javascript/mastodon/features/notifications/components/notification.js
+++ b/app/javascript/mastodon/features/notifications/components/notification.js
@@ -7,6 +7,7 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 import { me } from 'mastodon/initial_state';
 import StatusContainer from 'mastodon/containers/status_container';
 import AccountContainer from 'mastodon/containers/account_container';
+import FollowRequestContainer from '../containers/follow_request_container';
 import Icon from 'mastodon/components/icon';
 import Permalink from 'mastodon/components/permalink';
 
@@ -127,7 +128,29 @@ class Notification extends ImmutablePureComponent {
             </span>
           </div>
 
-          <AccountContainer id={account.get('id')} withNote={false} hidden={this.props.hidden} />
+          <AccountContainer id={account.get('id')} hidden={this.props.hidden} />
+        </div>
+      </HotKeys>
+    );
+  }
+
+  renderFollowRequest (notification, account, link) {
+    const { intl } = this.props;
+
+    return (
+      <HotKeys handlers={this.getHandlers()}>
+        <div className='notification notification-follow-request focusable' tabIndex='0' aria-label={notificationForScreenReader(intl, intl.formatMessage({ id: 'notification.follow_request', defaultMessage: '{name} has requested to follow you' }, { name: account.get('acct') }), notification.get('created_at'))}>
+          <div className='notification__message'>
+            <div className='notification__favourite-icon-wrapper'>
+              <Icon id='user' fixedWidth />
+            </div>
+
+            <span title={notification.get('created_at')}>
+              <FormattedMessage id='notification.follow_request' defaultMessage='{name} has requested to follow you' values={{ name: link }} />
+            </span>
+          </div>
+
+          <FollowRequestContainer id={account.get('id')} withNote={false} hidden={this.props.hidden} />
         </div>
       </HotKeys>
     );
@@ -261,6 +284,8 @@ class Notification extends ImmutablePureComponent {
     switch(notification.get('type')) {
     case 'follow':
       return this.renderFollow(notification, account, link);
+    case 'follow_request':
+      return this.renderFollowRequest(notification, account, link);
     case 'mention':
       return this.renderMention(notification);
     case 'favourite':
diff --git a/app/javascript/mastodon/features/notifications/containers/follow_request_container.js b/app/javascript/mastodon/features/notifications/containers/follow_request_container.js
new file mode 100644
index 000000000..f9f6c577e
--- /dev/null
+++ b/app/javascript/mastodon/features/notifications/containers/follow_request_container.js
@@ -0,0 +1,26 @@
+import { connect } from 'react-redux';
+import { makeGetAccount } from 'mastodon/selectors';
+import FollowRequest from '../components/follow_request';
+import { authorizeFollowRequest, rejectFollowRequest } from 'mastodon/actions/accounts';
+
+const makeMapStateToProps = () => {
+  const getAccount = makeGetAccount();
+
+  const mapStateToProps = (state, props) => ({
+    account: getAccount(state, props.id),
+  });
+
+  return mapStateToProps;
+};
+
+const mapDispatchToProps = (dispatch, { id }) => ({
+  onAuthorize () {
+    dispatch(authorizeFollowRequest(id));
+  },
+
+  onReject () {
+    dispatch(rejectFollowRequest(id));
+  },
+});
+
+export default connect(makeMapStateToProps, mapDispatchToProps)(FollowRequest);
diff --git a/app/javascript/mastodon/features/ui/components/follow_requests_nav_link.js b/app/javascript/mastodon/features/ui/components/follow_requests_nav_link.js
index 90c953893..950ed7b27 100644
--- a/app/javascript/mastodon/features/ui/components/follow_requests_nav_link.js
+++ b/app/javascript/mastodon/features/ui/components/follow_requests_nav_link.js
@@ -4,12 +4,10 @@ import { fetchFollowRequests } from 'mastodon/actions/accounts';
 import { connect } from 'react-redux';
 import { NavLink, withRouter } from 'react-router-dom';
 import IconWithBadge from 'mastodon/components/icon_with_badge';
-import { me } from 'mastodon/initial_state';
 import { List as ImmutableList } from 'immutable';
 import { FormattedMessage } from 'react-intl';
 
 const mapStateToProps = state => ({
-  locked: state.getIn(['accounts', me, 'locked']),
   count: state.getIn(['user_lists', 'follow_requests', 'items'], ImmutableList()).size,
 });
 
@@ -19,22 +17,19 @@ class FollowRequestsNavLink extends React.Component {
 
   static propTypes = {
     dispatch: PropTypes.func.isRequired,
-    locked: PropTypes.bool,
     count: PropTypes.number.isRequired,
   };
 
   componentDidMount () {
-    const { dispatch, locked } = this.props;
+    const { dispatch } = this.props;
 
-    if (locked) {
-      dispatch(fetchFollowRequests());
-    }
+    dispatch(fetchFollowRequests());
   }
 
   render () {
-    const { locked, count } = this.props;
+    const { count } = this.props;
 
-    if (!locked || count === 0) {
+    if (count === 0) {
       return null;
     }
 
diff --git a/app/javascript/mastodon/reducers/notifications.js b/app/javascript/mastodon/reducers/notifications.js
index 6ba80bd6a..60e901e39 100644
--- a/app/javascript/mastodon/reducers/notifications.js
+++ b/app/javascript/mastodon/reducers/notifications.js
@@ -13,6 +13,8 @@ import {
 import {
   ACCOUNT_BLOCK_SUCCESS,
   ACCOUNT_MUTE_SUCCESS,
+  FOLLOW_REQUEST_AUTHORIZE_SUCCESS,
+  FOLLOW_REQUEST_REJECT_SUCCESS,
 } from '../actions/accounts';
 import { DOMAIN_BLOCK_SUCCESS } from 'mastodon/actions/domain_blocks';
 import { TIMELINE_DELETE, TIMELINE_DISCONNECT } from '../actions/timelines';
@@ -89,8 +91,8 @@ const expandNormalizedNotifications = (state, notifications, next, isLoadingRece
   });
 };
 
-const filterNotifications = (state, accountIds) => {
-  const helper = list => list.filterNot(item => item !== null && accountIds.includes(item.get('account')));
+const filterNotifications = (state, accountIds, type) => {
+  const helper = list => list.filterNot(item => item !== null && accountIds.includes(item.get('account')) && (type === undefined || type === item.get('type')));
   return state.update('items', helper).update('pendingItems', helper);
 };
 
@@ -129,6 +131,11 @@ export default function notifications(state = initialState, action) {
     return action.relationship.muting_notifications ? filterNotifications(state, [action.relationship.id]) : state;
   case DOMAIN_BLOCK_SUCCESS:
     return filterNotifications(state, action.accounts);
+  case FOLLOW_REQUEST_AUTHORIZE_SUCCESS:
+  case FOLLOW_REQUEST_REJECT_SUCCESS:
+    return filterNotifications(state, [action.id], 'follow_request');
+  case ACCOUNT_MUTE_SUCCESS:
+    return action.relationship.muting_notifications ? filterNotifications(state, [action.relationship.id]) : state;
   case NOTIFICATIONS_CLEAR:
     return state.set('items', ImmutableList()).set('pendingItems', ImmutableList()).set('hasMore', false);
   case TIMELINE_DELETE:
diff --git a/app/javascript/mastodon/reducers/push_notifications.js b/app/javascript/mastodon/reducers/push_notifications.js
index 317352b79..c48cfb705 100644
--- a/app/javascript/mastodon/reducers/push_notifications.js
+++ b/app/javascript/mastodon/reducers/push_notifications.js
@@ -6,6 +6,7 @@ const initialState = Immutable.Map({
   subscription: null,
   alerts: new Immutable.Map({
     follow: false,
+    follow_request: false,
     favourite: false,
     reblog: false,
     mention: false,
diff --git a/app/javascript/mastodon/reducers/settings.js b/app/javascript/mastodon/reducers/settings.js
index 793a99f8f..efef2ad9a 100644
--- a/app/javascript/mastodon/reducers/settings.js
+++ b/app/javascript/mastodon/reducers/settings.js
@@ -30,6 +30,7 @@ const initialState = ImmutableMap({
   notifications: ImmutableMap({
     alerts: ImmutableMap({
       follow: true,
+      follow_request: false,
       favourite: true,
       reblog: true,
       mention: true,
@@ -44,6 +45,7 @@ const initialState = ImmutableMap({
 
     shows: ImmutableMap({
       follow: true,
+      follow_request: false,
       favourite: true,
       reblog: true,
       mention: true,
@@ -52,6 +54,7 @@ const initialState = ImmutableMap({
 
     sounds: ImmutableMap({
       follow: true,
+      follow_request: false,
       favourite: true,
       reblog: true,
       mention: true,
diff --git a/app/javascript/mastodon/reducers/user_lists.js b/app/javascript/mastodon/reducers/user_lists.js
index 08e94022f..a7853452f 100644
--- a/app/javascript/mastodon/reducers/user_lists.js
+++ b/app/javascript/mastodon/reducers/user_lists.js
@@ -1,4 +1,7 @@
 import {
+  NOTIFICATIONS_UPDATE,
+} from '../actions/notifications';
+import {
   FOLLOWERS_FETCH_SUCCESS,
   FOLLOWERS_EXPAND_SUCCESS,
   FOLLOWING_FETCH_SUCCESS,
@@ -53,6 +56,12 @@ const appendToList = (state, type, id, accounts, next) => {
   });
 };
 
+const normalizeFollowRequest = (state, notification) => {
+  return state.updateIn(['follow_requests', 'items'], list => {
+    return list.filterNot(item => item === notification.account.id).unshift(notification.account.id);
+  });
+};
+
 export default function userLists(state = initialState, action) {
   switch(action.type) {
   case FOLLOWERS_FETCH_SUCCESS:
@@ -67,6 +76,8 @@ export default function userLists(state = initialState, action) {
     return state.setIn(['reblogged_by', action.id], ImmutableList(action.accounts.map(item => item.id)));
   case FAVOURITES_FETCH_SUCCESS:
     return state.setIn(['favourited_by', action.id], ImmutableList(action.accounts.map(item => item.id)));
+  case NOTIFICATIONS_UPDATE:
+    return action.notification.type === 'follow_request' ? normalizeFollowRequest(state, action.notification) : state;
   case FOLLOW_REQUESTS_FETCH_SUCCESS:
     return state.setIn(['follow_requests', 'items'], ImmutableList(action.accounts.map(item => item.id))).setIn(['follow_requests', 'next'], action.next);
   case FOLLOW_REQUESTS_EXPAND_SUCCESS:
diff --git a/app/javascript/mastodon/service_worker/web_push_locales.js b/app/javascript/mastodon/service_worker/web_push_locales.js
index 5ce8c7b50..1265f3cfa 100644
--- a/app/javascript/mastodon/service_worker/web_push_locales.js
+++ b/app/javascript/mastodon/service_worker/web_push_locales.js
@@ -16,6 +16,7 @@ filenames.forEach(filename => {
   filtered[locale] = {
     'notification.favourite': full['notification.favourite'] || '',
     'notification.follow': full['notification.follow'] || '',
+    'notification.follow_request': full['notification.follow_request'] || '',
     'notification.mention': full['notification.mention'] || '',
     'notification.reblog': full['notification.reblog'] || '',
     'notification.poll': full['notification.poll'] || '',
diff --git a/app/models/notification.rb b/app/models/notification.rb
index 498673ff1..ad7528f50 100644
--- a/app/models/notification.rb
+++ b/app/models/notification.rb
@@ -42,7 +42,7 @@ class Notification < ApplicationRecord
   validates :activity_type, inclusion: { in: TYPE_CLASS_MAP.values }
 
   scope :browserable, ->(exclude_types = [], account_id = nil) {
-    types = TYPE_CLASS_MAP.values - activity_types_from_types(exclude_types + [:follow_request])
+    types = TYPE_CLASS_MAP.values - activity_types_from_types(exclude_types)
     if account_id.nil?
       where(activity_type: types)
     else
@@ -50,7 +50,7 @@ class Notification < ApplicationRecord
     end
   }
 
-  cache_associated :from_account, status: STATUS_INCLUDES, mention: [status: STATUS_INCLUDES], favourite: [:account, status: STATUS_INCLUDES], follow: :account, poll: [status: STATUS_INCLUDES]
+  cache_associated :from_account, status: STATUS_INCLUDES, mention: [status: STATUS_INCLUDES], favourite: [:account, status: STATUS_INCLUDES], follow: :account, follow_request: :account, poll: [status: STATUS_INCLUDES]
 
   def type
     @type ||= TYPE_CLASS_MAP.invert[activity_type].to_sym
@@ -69,10 +69,6 @@ class Notification < ApplicationRecord
     end
   end
 
-  def browserable?
-    type != :follow_request
-  end
-
   class << self
     def cache_ids
       select(:id, :updated_at, :activity_type, :activity_id)
diff --git a/app/services/notify_service.rb b/app/services/notify_service.rb
index b5c721589..9364a6ae8 100644
--- a/app/services/notify_service.rb
+++ b/app/services/notify_service.rb
@@ -9,7 +9,7 @@ class NotifyService < BaseService
     return if recipient.user.nil? || blocked?
 
     create_notification!
-    push_notification! if @notification.browserable?
+    push_notification!
     push_to_conversation! if direct_message?
     send_email! if email_enabled?
   rescue ActiveRecord::RecordInvalid
diff --git a/spec/models/notification_spec.rb b/spec/models/notification_spec.rb
index 59c582cde..d2e676ec2 100644
--- a/spec/models/notification_spec.rb
+++ b/spec/models/notification_spec.rb
@@ -34,32 +34,6 @@ RSpec.describe Notification, type: :model do
     end
   end
 
-  describe '#browserable?' do
-    let(:notification) { Fabricate(:notification) }
-
-    subject { notification.browserable? }
-
-    context 'type is :follow_request' do
-      before do
-        allow(notification).to receive(:type).and_return(:follow_request)
-      end
-
-      it 'returns false' do
-        is_expected.to be false
-      end
-    end
-
-    context 'type is not :follow_request' do
-      before do
-        allow(notification).to receive(:type).and_return(:else)
-      end
-
-      it 'returns true' do
-        is_expected.to be true
-      end
-    end
-  end
-
   describe '#type' do
     it 'returns :reblog for a Status' do
       notification = Notification.new(activity: Status.new)