New notification cleaning mode (#89)

This PR adds a new notification cleaning mode, super perfectly tuned for accessibility, and removes the previous notification cleaning functionality as it's now redundant.

* w.i.p. notif clearing mode

* Better CSS for selected notification and shorter text if Stretch is off

* wip for rebase ~

* all working in notif clearing mode, except the actual removal

* bulk delete route for piggo

* cleaning + refactor. endpoint gives 422 for some reason

* formatting

* use the right route

* fix broken destroy_multiple

* load more notifs after succ cleaning

* satisfy eslint

* Removed CSS for the old notif delete button

* Tabindex=0 is mandatory

In order to make it possible to tab to this element you must have tab index = 0. Removing this violates WCAG and makes it impossible to use the interface without good eyesight and a mouse. So nobody with certain mobility impairments, vision impairments, or brain injuries would be able to use this feature if you don't have tabindex=0

* Corrected aria-label

Previous label implied a different behavior from what actually happens

* aria role localization & made the overlay behave like a checkbox

* checkboxes css and better contrast

* color tuning for the notif overlay

* fanceh checkboxes etc and nice backgrounds

* SHUT UP TRAVIS

19 files changed, 512 insertions, 156 deletions

diff --git a/app/controllers/api/v1/notifications_controller.rb b/app/controllers/api/v1/notifications_controller.rb
index 55f35fa4b..a949752fb 100644
--- a/app/controllers/api/v1/notifications_controller.rb
+++ b/app/controllers/api/v1/notifications_controller.rb
@@ -33,6 +33,11 @@ class Api::V1::NotificationsController < Api::BaseController
     render_empty
   end
 
+  def destroy_multiple
+    current_account.notifications.where(id: params[:ids]).destroy_all
+    render_empty
+  end
+
   private
 
   def load_notifications
diff --git a/app/javascript/glitch/components/column/notif_cleaning_widget/container.js b/app/javascript/glitch/components/column/notif_cleaning_widget/container.js
new file mode 100644
index 000000000..bf079e3c4
--- /dev/null
+++ b/app/javascript/glitch/components/column/notif_cleaning_widget/container.js
@@ -0,0 +1,56 @@
+/*
+
+`<NotificationPurgeButtonsContainer>`
+=========================
+
+This container connects `<NotificationPurgeButtons>`s to the Redux store.
+
+*/
+
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+/*
+
+Imports:
+--------
+
+*/
+
+//  Package imports  //
+import { connect } from 'react-redux';
+
+//  Our imports  //
+import NotificationPurgeButtons from './notification_purge_buttons';
+import {
+  deleteMarkedNotifications,
+  enterNotificationClearingMode,
+} from '../../../../mastodon/actions/notifications';
+
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+/*
+
+Dispatch mapping:
+-----------------
+
+The `mapDispatchToProps()` function maps dispatches to our store to the
+various props of our component. We only need to provide a dispatch for
+deleting notifications.
+
+*/
+
+const mapDispatchToProps = dispatch => ({
+  onEnterCleaningMode(yes) {
+    dispatch(enterNotificationClearingMode(yes));
+  },
+
+  onDeleteMarkedNotifications() {
+    dispatch(deleteMarkedNotifications());
+  },
+});
+
+const mapStateToProps = state => ({
+  active: state.getIn(['notifications', 'cleaningMode']),
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(NotificationPurgeButtons);
diff --git a/app/javascript/glitch/components/column/notif_cleaning_widget/notification_purge_buttons.js b/app/javascript/glitch/components/column/notif_cleaning_widget/notification_purge_buttons.js
new file mode 100644
index 000000000..e41572256
--- /dev/null
+++ b/app/javascript/glitch/components/column/notif_cleaning_widget/notification_purge_buttons.js
@@ -0,0 +1,100 @@
+/**
+ * Buttons widget for controlling the notification clearing mode.
+ * In idle state, the cleaning mode button is shown. When the mode is active,
+ * a Confirm and Abort buttons are shown in its place.
+ */
+
+
+//  Package imports  //
+import React from 'react';
+import PropTypes from 'prop-types';
+import { defineMessages, injectIntl } from 'react-intl';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+
+//  Mastodon imports  //
+
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+const messages = defineMessages({
+  enter : { id: 'notification_purge.start', defaultMessage: 'Enter notification cleaning mode' },
+  accept : { id: 'notification_purge.confirm', defaultMessage: 'Dismiss selected notifications' },
+  abort : { id: 'notification_purge.abort', defaultMessage: 'Leave cleaning mode' },
+});
+
+@injectIntl
+export default class NotificationPurgeButtons extends ImmutablePureComponent {
+
+  static propTypes = {
+    // Nukes all marked notifications
+    onDeleteMarkedNotifications : PropTypes.func.isRequired,
+    // Enables or disables the mode
+    // and also clears the marked status of all notifications
+    onEnterCleaningMode : PropTypes.func.isRequired,
+    // Active state, changed via onStateChange()
+    active: PropTypes.bool.isRequired,
+    // i18n
+    intl: PropTypes.object.isRequired,
+  };
+
+  onEnterBtnClick = () => {
+    this.props.onEnterCleaningMode(true);
+  }
+
+  onAcceptBtnClick = () => {
+    this.props.onDeleteMarkedNotifications();
+  }
+
+  onAbortBtnClick = () => {
+    this.props.onEnterCleaningMode(false);
+  }
+
+  render () {
+    const { intl, active } = this.props;
+
+    const msgEnter = intl.formatMessage(messages.enter);
+    const msgAccept = intl.formatMessage(messages.accept);
+    const msgAbort = intl.formatMessage(messages.abort);
+
+    let enterButton, acceptButton, abortButton;
+
+    if (active) {
+      acceptButton = (
+        <button
+          className='active'
+          aria-label={msgAccept}
+          title={msgAccept}
+          onClick={this.onAcceptBtnClick}
+        >
+          <i className='fa fa-check' />
+        </button>
+      );
+      abortButton = (
+        <button
+          className='active'
+          aria-label={msgAbort}
+          title={msgAbort}
+          onClick={this.onAbortBtnClick}
+        >
+          <i className='fa fa-times' />
+        </button>
+      );
+    } else {
+      enterButton = (
+        <button
+          aria-label={msgEnter}
+          title={msgEnter}
+          onClick={this.onEnterBtnClick}
+        >
+          <i className='fa fa-eraser' />
+        </button>
+      );
+    }
+
+    return (
+      <div className='column-header__notif-cleaning-buttons'>
+        {acceptButton}{abortButton}{enterButton}
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/glitch/components/notification/container.js b/app/javascript/glitch/components/notification/container.js
index bed086172..7d2590684 100644
--- a/app/javascript/glitch/components/notification/container.js
+++ b/app/javascript/glitch/components/notification/container.js
@@ -24,7 +24,6 @@ import { makeGetNotification } from '../../../mastodon/selectors';
 
 //  Our imports  //
 import Notification from '.';
-import { deleteNotification } from '../../../mastodon/actions/notifications';
 
 //  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 
@@ -53,21 +52,4 @@ const makeMapStateToProps = () => {
 
 //  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 
-/*
-
-Dispatch mapping:
------------------
-
-The `mapDispatchToProps()` function maps dispatches to our store to the
-various props of our component. We only need to provide a dispatch for
-deleting notifications.
-
-*/
-
-const mapDispatchToProps = dispatch => ({
-  onDeleteNotification (id) {
-    dispatch(deleteNotification(id));
-  },
-});
-
-export default connect(makeMapStateToProps, mapDispatchToProps)(Notification);
+export default connect(makeMapStateToProps)(Notification);
diff --git a/app/javascript/glitch/components/notification/follow.js b/app/javascript/glitch/components/notification/follow.js
index 26396478b..0e0065eb1 100644
--- a/app/javascript/glitch/components/notification/follow.js
+++ b/app/javascript/glitch/components/notification/follow.js
@@ -36,7 +36,7 @@ Imports:
 import React from 'react';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
-import { defineMessages, FormattedMessage, injectIntl } from 'react-intl';
+import { FormattedMessage } from 'react-intl';
 import escapeTextContentForBrowser from 'escape-html';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 
@@ -45,22 +45,10 @@ import emojify from '../../../mastodon/emoji';
 import Permalink from '../../../mastodon/components/permalink';
 import AccountContainer from '../../../mastodon/containers/account_container';
 
-//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
-
-/*
-
-Inital setup:
--------------
-
-The `messages` constant is used to define any messages that we need
-from inside props.
-
-*/
+// Our imports //
+import NotificationOverlayContainer from '../notification/overlay/container';
 
-const messages = defineMessages({
-  deleteNotification :
-    { id: 'status.dismiss_notification', defaultMessage: 'Dismiss notification' },
-});
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 
 /*
 
@@ -69,31 +57,16 @@ Implementation:
 
 */
 
-@injectIntl
 export default class NotificationFollow extends ImmutablePureComponent {
 
   static propTypes = {
     id                   : PropTypes.number.isRequired,
-    onDeleteNotification : PropTypes.func.isRequired,
     account              : ImmutablePropTypes.map.isRequired,
-    intl                 : PropTypes.object.isRequired,
+    notification         : ImmutablePropTypes.map.isRequired,
   };
 
 /*
 
-###  `handleNotificationDeleteClick()`
-
-This function just calls our `onDeleteNotification()` prop with the
-notification's `id`.
-
-*/
-
-  handleNotificationDeleteClick = () => {
-    this.props.onDeleteNotification(this.props.id);
-  }
-
-/*
-
 ###  `render()`
 
 This actually renders the component.
@@ -101,26 +74,7 @@ This actually renders the component.
 */
 
   render () {
-    const { account, intl } = this.props;
-
-/*
-
-`dismiss` creates the notification dismissal button. Its title is given
-by `dismissTitle`.
-
-*/
-
-    const dismissTitle = intl.formatMessage(messages.deleteNotification);
-    const dismiss = (
-      <button
-        aria-label={dismissTitle}
-        title={dismissTitle}
-        onClick={this.handleNotificationDeleteClick}
-        className='status__prepend-dismiss-button'
-      >
-        <i className='fa fa-eraser' />
-      </button>
-    );
+    const { account, notification } = this.props;
 
 /*
 
@@ -149,6 +103,7 @@ We can now render our component.
 
     return (
       <div className='notification notification-follow'>
+        <NotificationOverlayContainer notification={notification} />
         <div className='notification__message'>
           <div className='notification__favourite-icon-wrapper'>
             <i className='fa fa-fw fa-user-plus' />
@@ -159,8 +114,6 @@ We can now render our component.
             defaultMessage='{name} followed you'
             values={{ name: link }}
           />
-
-          {dismiss}
         </div>
 
         <AccountContainer id={account.get('id')} withNote={false} />
diff --git a/app/javascript/glitch/components/notification/index.js b/app/javascript/glitch/components/notification/index.js
index 556d5aea8..b2e55aad5 100644
--- a/app/javascript/glitch/components/notification/index.js
+++ b/app/javascript/glitch/components/notification/index.js
@@ -2,7 +2,6 @@
 import React from 'react';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import ImmutablePureComponent from 'react-immutable-pure-component';
-import PropTypes from 'prop-types';
 
 //  Mastodon imports  //
 
@@ -15,7 +14,6 @@ export default class Notification extends ImmutablePureComponent {
   static propTypes = {
     notification: ImmutablePropTypes.map.isRequired,
     settings: ImmutablePropTypes.map.isRequired,
-    onDeleteNotification: PropTypes.func.isRequired,
   };
 
   renderFollow (notification) {
@@ -23,7 +21,7 @@ export default class Notification extends ImmutablePureComponent {
       <NotificationFollow
         id={notification.get('id')}
         account={notification.get('account')}
-        onDeleteNotification={this.props.onDeleteNotification}
+        notification={notification}
       />
     );
   }
@@ -32,7 +30,7 @@ export default class Notification extends ImmutablePureComponent {
     return (
       <StatusContainer
         id={notification.get('status')}
-        notificationId={notification.get('id')}
+        notification={notification}
         withDismiss
       />
     );
@@ -45,7 +43,7 @@ export default class Notification extends ImmutablePureComponent {
         account={notification.get('account')}
         prepend='favourite'
         muted
-        notificationId={notification.get('id')}
+        notification={notification}
         withDismiss
       />
     );
@@ -58,7 +56,7 @@ export default class Notification extends ImmutablePureComponent {
         account={notification.get('account')}
         prepend='reblog'
         muted
-        notificationId={notification.get('id')}
+        notification={notification}
         withDismiss
       />
     );
diff --git a/app/javascript/glitch/components/notification/overlay/container.js b/app/javascript/glitch/components/notification/overlay/container.js
new file mode 100644
index 000000000..019b78d0b
--- /dev/null
+++ b/app/javascript/glitch/components/notification/overlay/container.js
@@ -0,0 +1,49 @@
+/*
+
+`<NotificationOverlayContainer>`
+=========================
+
+This container connects `<NotificationOverlay>`s to the Redux store.
+
+*/
+
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+/*
+
+Imports:
+--------
+
+*/
+
+//  Package imports  //
+import { connect } from 'react-redux';
+
+//  Our imports  //
+import NotificationOverlay from './notification_overlay';
+import { markNotificationForDelete } from '../../../../mastodon/actions/notifications';
+
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+/*
+
+Dispatch mapping:
+-----------------
+
+The `mapDispatchToProps()` function maps dispatches to our store to the
+various props of our component. We only need to provide a dispatch for
+deleting notifications.
+
+*/
+
+const mapDispatchToProps = dispatch => ({
+  onMarkForDelete(id, yes) {
+    dispatch(markNotificationForDelete(id, yes));
+  },
+});
+
+const mapStateToProps = state => ({
+  revealed: state.getIn(['notifications', 'cleaningMode']),
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(NotificationOverlay);
diff --git a/app/javascript/glitch/components/notification/overlay/notification_overlay.js b/app/javascript/glitch/components/notification/overlay/notification_overlay.js
new file mode 100644
index 000000000..73eda718f
--- /dev/null
+++ b/app/javascript/glitch/components/notification/overlay/notification_overlay.js
@@ -0,0 +1,59 @@
+/**
+ * Notification overlay
+ */
+
+
+//  Package imports  //
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import PropTypes from 'prop-types';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import { defineMessages, injectIntl } from 'react-intl';
+
+//  Mastodon imports  //
+
+//  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+
+const messages = defineMessages({
+  markForDeletion: { id: 'notification.markForDeletion', defaultMessage: 'Mark for deletion' },
+});
+
+@injectIntl
+export default class NotificationOverlay extends ImmutablePureComponent {
+
+  static propTypes = {
+    notification    : ImmutablePropTypes.map.isRequired,
+    onMarkForDelete : PropTypes.func.isRequired,
+    revealed        : PropTypes.bool.isRequired,
+    intl            : PropTypes.object.isRequired,
+  };
+
+  onToggleMark = () => {
+    const mark = !this.props.notification.get('markedForDelete');
+    const id = this.props.notification.get('id');
+    this.props.onMarkForDelete(id, mark);
+  }
+
+  render () {
+    const { notification, revealed, intl } = this.props;
+
+    const active = notification.get('markedForDelete');
+    const label = intl.formatMessage(messages.markForDeletion);
+
+    return (
+      <div
+        aria-label={label}
+        role='checkbox'
+        aria-checked={active}
+        tabIndex={0}
+        className={`notification__dismiss-overlay ${active ? 'active' : ''} ${revealed ? 'show' : ''}`}
+        onClick={this.onToggleMark}
+      >
+        <div className='notification__dismiss-overlay__ckbox' aria-hidden='true' title={label}>
+          {active ? (<i className='fa fa-check' />) : ''}
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/glitch/components/status/action_bar.js b/app/javascript/glitch/components/status/action_bar.js
index df0904a7c..7c73002c1 100644
--- a/app/javascript/glitch/components/status/action_bar.js
+++ b/app/javascript/glitch/components/status/action_bar.js
@@ -24,7 +24,6 @@ const messages = defineMessages({
   report: { id: 'status.report', defaultMessage: 'Report @{name}' },
   muteConversation: { id: 'status.mute_conversation', defaultMessage: 'Mute conversation' },
   unmuteConversation: { id: 'status.unmute_conversation', defaultMessage: 'Unmute conversation' },
-  deleteNotification: { id: 'status.dismiss_notification', defaultMessage: 'Dismiss notification' },
 });
 
 @injectIntl
@@ -36,7 +35,6 @@ export default class StatusActionBar extends ImmutablePureComponent {
 
   static propTypes = {
     status: ImmutablePropTypes.map.isRequired,
-    notificationId: PropTypes.number,
     onReply: PropTypes.func,
     onFavourite: PropTypes.func,
     onReblog: PropTypes.func,
@@ -46,7 +44,6 @@ export default class StatusActionBar extends ImmutablePureComponent {
     onBlock: PropTypes.func,
     onReport: PropTypes.func,
     onMuteConversation: PropTypes.func,
-    onDeleteNotification: PropTypes.func,
     me: PropTypes.number,
     withDismiss: PropTypes.bool,
     intl: PropTypes.object.isRequired,
@@ -100,10 +97,6 @@ export default class StatusActionBar extends ImmutablePureComponent {
     this.props.onMuteConversation(this.props.status);
   }
 
-  handleNotificationDeleteClick = () => {
-    this.props.onDeleteNotification(this.props.notificationId);
-  }
-
   render () {
     const { status, me, intl, withDismiss } = this.props;
     const reblogDisabled = status.get('visibility') === 'private' || status.get('visibility') === 'direct';
@@ -120,7 +113,6 @@ export default class StatusActionBar extends ImmutablePureComponent {
 
     if (withDismiss) {
       menu.push({ text: intl.formatMessage(mutingConversation ? messages.unmuteConversation : messages.muteConversation), action: this.handleConversationMuteClick });
-      menu.push({ text: intl.formatMessage(messages.deleteNotification), action: this.handleNotificationDeleteClick });
       menu.push(null);
     }
 
diff --git a/app/javascript/glitch/components/status/container.js b/app/javascript/glitch/components/status/container.js
index c45b2e0ec..1d572e0e7 100644
--- a/app/javascript/glitch/components/status/container.js
+++ b/app/javascript/glitch/components/status/container.js
@@ -50,7 +50,6 @@ import {
 } from '../../../mastodon/actions/statuses';
 import { initReport } from '../../../mastodon/actions/reports';
 import { openModal } from '../../../mastodon/actions/modal';
-import { deleteNotification } from '../../../mastodon/actions/notifications';
 
 //  Our imports  //
 import Status from '.';
@@ -245,10 +244,6 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
       dispatch(muteStatus(status.get('id')));
     }
   },
-
-  onDeleteNotification (id) {
-    dispatch(deleteNotification(id));
-  },
 });
 
 export default injectIntl(
diff --git a/app/javascript/glitch/components/status/index.js b/app/javascript/glitch/components/status/index.js
index 4a91b5aa3..dc06250ec 100644
--- a/app/javascript/glitch/components/status/index.js
+++ b/app/javascript/glitch/components/status/index.js
@@ -47,6 +47,7 @@ import StatusContent from './content';
 import StatusActionBar from './action_bar';
 import StatusGallery from './gallery';
 import StatusPlayer from './player';
+import NotificationOverlayContainer from '../notification/overlay/container';
 
                             /* * * * */
 
@@ -158,6 +159,7 @@ export default class Status extends ImmutablePureComponent {
     status                      : ImmutablePropTypes.map,
     account                     : ImmutablePropTypes.map,
     settings                    : ImmutablePropTypes.map,
+    notification                : ImmutablePropTypes.map,
     me                          : PropTypes.number,
     onFavourite                 : PropTypes.func,
     onReblog                    : PropTypes.func,
@@ -170,7 +172,6 @@ export default class Status extends ImmutablePureComponent {
     onReport                    : PropTypes.func,
     onOpenMedia                 : PropTypes.func,
     onOpenVideo                 : PropTypes.func,
-    onDeleteNotification        : PropTypes.func,
     reblogModal                 : PropTypes.bool,
     deleteModal                 : PropTypes.bool,
     autoPlayGif                 : PropTypes.bool,
@@ -178,7 +179,6 @@ export default class Status extends ImmutablePureComponent {
     collapse                    : PropTypes.bool,
     prepend                     : PropTypes.string,
     withDismiss                 : PropTypes.bool,
-    notificationId              : PropTypes.number,
     intersectionObserverWrapper : PropTypes.object,
   };
 
@@ -186,6 +186,7 @@ export default class Status extends ImmutablePureComponent {
     isExpanded                  : null,
     isIntersecting              : true,
     isHidden                    : false,
+    markedForDelete             : false,
   }
 
 /*
@@ -212,10 +213,12 @@ to remember to specify it here.
     'autoPlayGif',
     'muted',
     'collapse',
+    'notification',
   ]
 
   updateOnStates = [
     'isExpanded',
+    'markedForDelete',
   ]
 
 /*
@@ -523,6 +526,10 @@ applicable.
     }
   }
 
+  markNotifForDelete = () => {
+    this.setState({ 'markedForDelete' : !this.state.markedForDelete });
+  }
+
 /*
 
 ####  `render()`.
@@ -551,6 +558,7 @@ this operation are further explained in the code below.
       onOpenVideo,
       onOpenMedia,
       autoPlayGif,
+      notification,
       ...other
     } = this.props;
     const { isExpanded, isIntersecting, isHidden } = this.state;
@@ -678,6 +686,8 @@ collapsed.
             isExpanded === false ? ' collapsed' : ''
           }${
             isExpanded === false && background ? ' has-background' : ''
+          }${
+            this.state.markedForDelete ? ' marked-for-delete' : ''
           }`
         }
         style={{
@@ -689,13 +699,17 @@ collapsed.
         }}
         ref={handleRef}
       >
+        {notification ? (
+          <NotificationOverlayContainer
+            notification={notification}
+          />
+        ) : null}
         {prepend && account ? (
           <StatusPrepend
             type={prepend}
             account={account}
             parseClick={parseClick}
             notificationId={this.props.notificationId}
-            onDeleteNotification={this.props.onDeleteNotification}
           />
         ) : null}
         <StatusHeader
diff --git a/app/javascript/glitch/components/status/prepend.js b/app/javascript/glitch/components/status/prepend.js
index d9b04b5ec..6213e4c8d 100644
--- a/app/javascript/glitch/components/status/prepend.js
+++ b/app/javascript/glitch/components/status/prepend.js
@@ -23,17 +23,11 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import escapeTextContentForBrowser from 'escape-html';
-import { defineMessages, injectIntl } from 'react-intl';
 import { FormattedMessage } from 'react-intl';
 
 //  Mastodon imports  //
 import emojify from '../../../mastodon/emoji';
 
-
-const messages = defineMessages({
-  deleteNotification: { id: 'status.dismiss_notification', defaultMessage: 'Dismiss notification' },
-});
-
                             /* * * * */
 
 /*
@@ -59,7 +53,6 @@ element.
 
 */
 
-@injectIntl
 export default class StatusPrepend extends React.PureComponent {
 
   static propTypes = {
@@ -67,8 +60,6 @@ export default class StatusPrepend extends React.PureComponent {
     account: ImmutablePropTypes.map.isRequired,
     parseClick: PropTypes.func.isRequired,
     notificationId: PropTypes.number,
-    onDeleteNotification: PropTypes.func,
-    intl: PropTypes.object.isRequired,
   };
 
 /*
@@ -87,10 +78,6 @@ an account link is clicked.
     parseClick(e, `/accounts/${+account.get('id')}`);
   }
 
-  handleNotificationDeleteClick = () => {
-    this.props.onDeleteNotification(this.props.notificationId);
-  }
-
 /*
 
 ####  `<Message>`.
@@ -159,19 +146,7 @@ the `<Message>` inside of an <aside>.
 
   render () {
     const { Message } = this;
-    const { type, intl } = this.props;
-
-    const dismissTitle = intl.formatMessage(messages.deleteNotification);
-    const dismiss = this.props.notificationId ? (
-      <button
-        aria-label={dismissTitle}
-        title={dismissTitle}
-        onClick={this.handleNotificationDeleteClick}
-        className='status__prepend-dismiss-button'
-      >
-        <i className='fa fa-eraser' />
-      </button>
-    ) : null;
+    const { type } = this.props;
 
     return !type ? null : (
       <aside className={type === 'reblogged_by' ? 'status__prepend' : 'notification__message'}>
@@ -183,7 +158,6 @@ the `<Message>` inside of an <aside>.
           />
         </div>
         <Message />
-        {dismiss}
       </aside>
     );
   }
diff --git a/app/javascript/glitch/locales/en.json b/app/javascript/glitch/locales/en.json
index 80fdc3a39..d202d9c33 100644
--- a/app/javascript/glitch/locales/en.json
+++ b/app/javascript/glitch/locales/en.json
@@ -28,5 +28,5 @@
   "settings.wide_view": "Wide view (Desktop mode only)",
   "status.collapse": "Collapse",
   "status.uncollapse": "Uncollapse",
-  "status.dismiss_notification": "Dismiss notification"
+  "notification.markForDeletion": "Mark for deletion"
 }
diff --git a/app/javascript/mastodon/actions/notifications.js b/app/javascript/mastodon/actions/notifications.js
index b2a0f7ac3..fca26516a 100644
--- a/app/javascript/mastodon/actions/notifications.js
+++ b/app/javascript/mastodon/actions/notifications.js
@@ -6,7 +6,15 @@ import { defineMessages } from 'react-intl';
 
 export const NOTIFICATIONS_UPDATE = 'NOTIFICATIONS_UPDATE';
 
-export const NOTIFICATION_DELETE_SUCCESS = 'NOTIFICATION_DELETE_SUCCESS';
+// tracking the notif cleaning request
+export const NOTIFICATIONS_DELETE_MARKED_REQUEST = 'NOTIFICATIONS_DELETE_MARKED_REQUEST';
+export const NOTIFICATIONS_DELETE_MARKED_SUCCESS = 'NOTIFICATIONS_DELETE_MARKED_SUCCESS';
+export const NOTIFICATIONS_DELETE_MARKED_FAIL = 'NOTIFICATIONS_DELETE_MARKED_FAIL';
+export const NOTIFICATIONS_ENTER_CLEARING_MODE = 'NOTIFICATIONS_ENTER_CLEARING_MODE'; // arg: yes
+// Unmark notifications (when the cleaning mode is left)
+export const NOTIFICATIONS_UNMARK_ALL_FOR_DELETE = 'NOTIFICATIONS_UNMARK_ALL_FOR_DELETE';
+// Mark one for delete
+export const NOTIFICATION_MARK_FOR_DELETE = 'NOTIFICATION_MARK_FOR_DELETE';
 
 export const NOTIFICATIONS_REFRESH_REQUEST = 'NOTIFICATIONS_REFRESH_REQUEST';
 export const NOTIFICATIONS_REFRESH_SUCCESS = 'NOTIFICATIONS_REFRESH_SUCCESS';
@@ -190,17 +198,61 @@ export function scrollTopNotifications(top) {
   };
 };
 
-export function deleteNotification(id) {
+export function deleteMarkedNotifications() {
   return (dispatch, getState) => {
-    api(getState).delete(`/api/v1/notifications/${id}`).then(() => {
-      dispatch(deleteNotificationSuccess(id));
+    dispatch(deleteMarkedNotificationsRequest());
+
+    let ids = [];
+    getState().getIn(['notifications', 'items']).forEach((n) => {
+      if (n.get('markedForDelete')) {
+        ids.push(n.get('id'));
+      }
+    });
+
+    if (ids.length === 0) {
+      dispatch(enterNotificationClearingMode(false));
+      return;
+    }
+
+    api(getState).delete(`/api/v1/notifications/destroy_multiple?ids[]=${ids.join('&ids[]=')}`).then(() => {
+      dispatch(deleteMarkedNotificationsSuccess());
+      dispatch(expandNotifications()); // Load more (to fill the empty space)
+    }).catch(error => {
+      console.error(error);
+      dispatch(deleteMarkedNotificationsFail(error));
     });
   };
 };
 
-export function deleteNotificationSuccess(id) {
+export function enterNotificationClearingMode(yes) {
+  return {
+    type: NOTIFICATIONS_ENTER_CLEARING_MODE,
+    yes: yes,
+  };
+};
+
+export function deleteMarkedNotificationsRequest() {
   return {
-    type: NOTIFICATION_DELETE_SUCCESS,
+    type: NOTIFICATIONS_DELETE_MARKED_REQUEST,
+  };
+};
+
+export function deleteMarkedNotificationsFail() {
+  return {
+    type: NOTIFICATIONS_DELETE_MARKED_FAIL,
+  };
+};
+
+export function markNotificationForDelete(id, yes) {
+  return {
+    type: NOTIFICATION_MARK_FOR_DELETE,
     id: id,
+    yes: yes,
+  };
+};
+
+export function deleteMarkedNotificationsSuccess() {
+  return {
+    type: NOTIFICATIONS_DELETE_MARKED_SUCCESS,
   };
 };
diff --git a/app/javascript/mastodon/components/column.js b/app/javascript/mastodon/components/column.js
index 3cbb745c5..0dd31e137 100644
--- a/app/javascript/mastodon/components/column.js
+++ b/app/javascript/mastodon/components/column.js
@@ -34,7 +34,12 @@ export default class Column extends React.PureComponent {
     const { children } = this.props;
 
     return (
-      <div role='region' className='column' ref={this.setRef} onWheel={this.handleWheel}>
+      <div
+        role='region'
+        className='column'
+        ref={this.setRef}
+        onWheel={this.handleWheel}
+      >
         {children}
       </div>
     );
diff --git a/app/javascript/mastodon/components/column_header.js b/app/javascript/mastodon/components/column_header.js
index e9f041be6..045904206 100644
--- a/app/javascript/mastodon/components/column_header.js
+++ b/app/javascript/mastodon/components/column_header.js
@@ -1,8 +1,18 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 import classNames from 'classnames';
-import { FormattedMessage } from 'react-intl';
+import { defineMessages, FormattedMessage, injectIntl } from 'react-intl';
+import ImmutablePropTypes from 'react-immutable-proptypes';
 
+// Glitch imports
+import NotificationPurgeButtonsContainer from '../../glitch/components/column/notif_cleaning_widget/container';
+
+const messages = defineMessages({
+  titleNotifClearing: { id: 'column.notifications_clearing', defaultMessage: 'Dismiss selected notifications:' },
+  titleNotifClearingShort: { id: 'column.notifications_clearing_short', defaultMessage: 'Dismiss selected:' },
+});
+
+@injectIntl
 export default class ColumnHeader extends React.PureComponent {
 
   static contextTypes = {
@@ -13,13 +23,17 @@ export default class ColumnHeader extends React.PureComponent {
     title: PropTypes.node.isRequired,
     icon: PropTypes.string.isRequired,
     active: PropTypes.bool,
+    localSettings : ImmutablePropTypes.map,
     multiColumn: PropTypes.bool,
     showBackButton: PropTypes.bool,
+    notifCleaning: PropTypes.bool, // true only for the notification column
+    notifCleaningActive: PropTypes.bool,
     children: PropTypes.node,
     pinned: PropTypes.bool,
     onPin: PropTypes.func,
     onMove: PropTypes.func,
     onClick: PropTypes.func,
+    intl: PropTypes.object.isRequired,
   };
 
   state = {
@@ -58,9 +72,16 @@ export default class ColumnHeader extends React.PureComponent {
   }
 
   render () {
-    const { title, icon, active, children, pinned, onPin, multiColumn, showBackButton } = this.props;
+    const { intl, icon, active, children, pinned, onPin, multiColumn, showBackButton, notifCleaning, localSettings } = this.props;
     const { collapsed, animating } = this.state;
 
+    let title = this.props.title;
+    if (notifCleaning && this.props.notifCleaningActive) {
+      title = intl.formatMessage(localSettings.getIn(['stretch']) ?
+        messages.titleNotifClearing :
+        messages.titleNotifClearingShort);
+    }
+
     const wrapperClassName = classNames('column-header__wrapper', {
       'active': active,
     });
@@ -130,6 +151,7 @@ export default class ColumnHeader extends React.PureComponent {
           {title}
 
           <div className='column-header__buttons'>
+            {notifCleaning ? (<NotificationPurgeButtonsContainer />) : null}
             {backButton}
             {collapseButton}
           </div>
diff --git a/app/javascript/mastodon/features/notifications/index.js b/app/javascript/mastodon/features/notifications/index.js
index 39fb4b26d..6a262a59e 100644
--- a/app/javascript/mastodon/features/notifications/index.js
+++ b/app/javascript/mastodon/features/notifications/index.js
@@ -4,7 +4,10 @@ import PropTypes from 'prop-types';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import Column from '../../components/column';
 import ColumnHeader from '../../components/column_header';
-import { expandNotifications, scrollTopNotifications } from '../../actions/notifications';
+import {
+  expandNotifications,
+  scrollTopNotifications,
+} from '../../actions/notifications';
 import { addColumn, removeColumn, moveColumn } from '../../actions/columns';
 import NotificationContainer from '../../../glitch/components/notification/container';
 import { ScrollContainer } from 'react-router-scroll';
@@ -26,9 +29,11 @@ const getNotifications = createSelector([
 
 const mapStateToProps = state => ({
   notifications: getNotifications(state),
+  localSettings:  state.get('local_settings'),
   isLoading: state.getIn(['notifications', 'isLoading'], true),
   isUnread: state.getIn(['notifications', 'unread']) > 0,
   hasMore: !!state.getIn(['notifications', 'next']),
+  notifCleaningActive: state.getIn(['notifications', 'cleaningMode']),
 });
 
 @connect(mapStateToProps)
@@ -45,6 +50,8 @@ export default class Notifications extends React.PureComponent {
     isUnread: PropTypes.bool,
     multiColumn: PropTypes.bool,
     hasMore: PropTypes.bool,
+    localSettings: ImmutablePropTypes.map,
+    notifCleaningActive: PropTypes.bool,
   };
 
   static defaultProps = {
@@ -164,7 +171,9 @@ export default class Notifications extends React.PureComponent {
     this.scrollableArea = scrollableArea;
 
     return (
-      <Column ref={this.setColumnRef}>
+      <Column
+        ref={this.setColumnRef}
+      >
         <ColumnHeader
           icon='bell'
           active={isUnread}
@@ -174,6 +183,9 @@ export default class Notifications extends React.PureComponent {
           onClick={this.handleHeaderClick}
           pinned={pinned}
           multiColumn={multiColumn}
+          localSettings={this.props.localSettings}
+          notifCleaning
+          notifCleaningActive={this.props.notifCleaningActive} // this is used to toggle the header text
         >
           <ColumnSettingsContainer />
         </ColumnHeader>
diff --git a/app/javascript/mastodon/reducers/notifications.js b/app/javascript/mastodon/reducers/notifications.js
index da5fcde84..dd81653d6 100644
--- a/app/javascript/mastodon/reducers/notifications.js
+++ b/app/javascript/mastodon/reducers/notifications.js
@@ -8,7 +8,11 @@ import {
   NOTIFICATIONS_EXPAND_FAIL,
   NOTIFICATIONS_CLEAR,
   NOTIFICATIONS_SCROLL_TOP,
-  NOTIFICATION_DELETE_SUCCESS,
+  NOTIFICATIONS_DELETE_MARKED_REQUEST,
+  NOTIFICATIONS_DELETE_MARKED_SUCCESS,
+  NOTIFICATION_MARK_FOR_DELETE,
+  NOTIFICATIONS_DELETE_MARKED_FAIL,
+  NOTIFICATIONS_ENTER_CLEARING_MODE,
 } from '../actions/notifications';
 import { ACCOUNT_BLOCK_SUCCESS } from '../actions/accounts';
 import { TIMELINE_DELETE } from '../actions/timelines';
@@ -21,12 +25,14 @@ const initialState = ImmutableMap({
   unread: 0,
   loaded: false,
   isLoading: true,
+  cleaningMode: false,
 });
 
 const notificationToMap = notification => ImmutableMap({
   id: notification.id,
   type: notification.type,
   account: notification.account.id,
+  markedForDelete: false,
   status: notification.status ? notification.status.id : null,
 });
 
@@ -93,17 +99,34 @@ const deleteByStatus = (state, statusId) => {
   return state.update('items', list => list.filterNot(item => item.get('status') === statusId));
 };
 
-const deleteById = (state, notificationId) => {
-  return state.update('items', list => list.filterNot(item => item.get('id') === notificationId));
+const markForDelete = (state, notificationId, yes) => {
+  return state.update('items', list => list.map(item => {
+    if(item.get('id') === notificationId) {
+      return item.set('markedForDelete', yes);
+    } else {
+      return item;
+    }
+  }));
+};
+
+const unmarkAllForDelete = (state) => {
+  return state.update('items', list => list.map(item => item.set('markedForDelete', false)));
+};
+
+const deleteMarkedNotifs = (state) => {
+  return state.update('items', list => list.filterNot(item => item.get('markedForDelete')));
 };
 
 export default function notifications(state = initialState, action) {
   switch(action.type) {
   case NOTIFICATIONS_REFRESH_REQUEST:
   case NOTIFICATIONS_EXPAND_REQUEST:
+  case NOTIFICATIONS_DELETE_MARKED_REQUEST:
+    return state.set('isLoading', true);
+  case NOTIFICATIONS_DELETE_MARKED_FAIL:
   case NOTIFICATIONS_REFRESH_FAIL:
   case NOTIFICATIONS_EXPAND_FAIL:
-    return state.set('isLoading', true);
+    return state.set('isLoading', false);
   case NOTIFICATIONS_SCROLL_TOP:
     return updateTop(state, action.top);
   case NOTIFICATIONS_UPDATE:
@@ -118,8 +141,15 @@ export default function notifications(state = initialState, action) {
     return state.set('items', ImmutableList()).set('next', null);
   case TIMELINE_DELETE:
     return deleteByStatus(state, action.id);
-  case NOTIFICATION_DELETE_SUCCESS:
-    return deleteById(state, action.id);
+  case NOTIFICATION_MARK_FOR_DELETE:
+    return markForDelete(state, action.id, action.yes);
+  case NOTIFICATIONS_DELETE_MARKED_SUCCESS:
+    return deleteMarkedNotifs(state).set('isLoading', false).set('cleaningMode', false);
+  case NOTIFICATIONS_ENTER_CLEARING_MODE:
+    const st = state.set('cleaningMode', action.yes);
+    if (!action.yes)
+      return unmarkAllForDelete(st);
+    else return st;
   default:
     return state;
   }
diff --git a/app/javascript/styles/components.scss b/app/javascript/styles/components.scss
index 0cd082985..dbdf286a9 100644
--- a/app/javascript/styles/components.scss
+++ b/app/javascript/styles/components.scss
@@ -451,6 +451,63 @@
   cursor: pointer;
 }
 
+.notification__dismiss-overlay {
+  position: absolute;
+  left: 0; top: 0; right: 0; bottom: 0;
+
+  $c1: #00000A;
+  $c2: #222228;
+  background: linear-gradient(to right,
+    rgba($c1, 0.1),
+    rgba($c1, 0.2) 60%,
+    rgba($c2, 1) 90%,
+    rgba($c2, 1));
+
+  z-index: 999;
+  align-items: center;
+  justify-content: flex-end;
+  cursor: pointer;
+
+  display: none;
+
+  &.show {
+    display: flex;
+  }
+
+  // make it brighter
+  &.active {
+    $c: #222931;
+    background: linear-gradient(to right,
+      rgba($c, 0.1),
+      rgba($c, 0.2) 60%,
+      rgba($c, 1) 90%,
+      rgba($c, 1));
+  }
+
+  &:focus {
+    outline: 0 !important;
+  }
+}
+
+.notification__dismiss-overlay__ckbox {
+  border: 2px solid #9baec8;
+  border-radius: 2px;
+  width: 30px;
+  height: 30px;
+  margin-right: 20px;
+  font-size: 20px;
+  color: #c3dcfd;
+  text-shadow: 0 0 5px black;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+
+  :focus & {
+    outline: rgb(77, 144, 254) auto 10px;
+    outline: -webkit-focus-ring-color auto 10px;
+  }
+}
+
 // --- Extra clickable area in the status gutter ---
 .ui.wide {
   @mixin xtraspaces-full {
@@ -627,24 +684,14 @@
   position: absolute;
 }
 
-.status__prepend-dismiss-button {
-  border: 0;
-  background: transparent;
-  position: absolute;
-  right: -3px;
-  opacity: 0;
-  transition: opacity 0.1s ease-in-out;
-
-  i.fa {
-    color: crimson;
-  }
+.notification-follow {
+  position: relative;
 
-  .notification__message:hover & {
-    opacity: 1;
-  }
+  // same like Status
+  border-bottom: 1px solid lighten($ui-base-color, 8%);
 
-  .notification-follow & {
-    right: 6px;
+  .account {
+    border-bottom: 0 none;
   }
 }
 
@@ -2408,6 +2455,17 @@ button.icon-button.active i.fa-retweet {
   }
 }
 
+.column-header__notif-cleaning-buttons {
+  display: flex;
+  align-items: stretch;
+
+  button {
+    @extend .column-header__button;
+    padding-left: 12px;
+    padding-right: 12px;
+  }
+}
+
 .column-header__collapsible {
   max-height: 70vh;
   overflow: hidden;