Add a keyboard shortcut to hide/show media (#10647)

* Move control of media visibility to parent component

* Add keyboard shortcut to toggle media visibility

app/javascript/mastodon/features/status/index.js

@@ -41,7 +41,7 @@ import { openModal } from '../../actions/modal';
 import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import { HotKeys } from 'react-hotkeys';
-import { boostModal, deleteModal } from '../../initial_state';
+import { boostModal, deleteModal, displayMedia } from '../../initial_state';
 import { attachFullscreenListener, detachFullscreenListener, isFullscreen } from '../ui/util/fullscreen';
 import { textForScreenReader } from '../../components/status';
 import Icon from 'mastodon/components/icon';
@@ -131,6 +131,7 @@ class Status extends ImmutablePureComponent {
 
   state = {
     fullscreen: false,
+    showMedia: !this.props.status ? undefined : (displayMedia !== 'hide_all' && !this.props.status.get('sensitive') || displayMedia === 'show_all'),
   };
 
   componentWillMount () {
@@ -146,6 +147,13 @@ class Status extends ImmutablePureComponent {
       this._scrolledIntoView = false;
       this.props.dispatch(fetchStatus(nextProps.params.statusId));
     }
+    if (!Immutable.is(nextProps.status, this.props.status) && nextProps.status) {
+      this.setState({ showMedia: displayMedia !== 'hide_all' && !nextProps.status.get('sensitive') || displayMedia === 'show_all' });
+    }
+  }
+
+  handleToggleMediaVisibility = () => {
+    this.setState({ showMedia: !this.state.showMedia });
   }
 
   handleFavouriteClick = (status) => {
@@ -312,6 +320,10 @@ class Status extends ImmutablePureComponent {
     this.handleToggleHidden(this.props.status);
   }
 
+  handleHotkeyToggleSensitive = () => {
+    this.handleToggleMediaVisibility();
+  }
+
   handleMoveUp = id => {
     const { status, ancestorsIds, descendantsIds } = this.props;
 
@@ -432,6 +444,7 @@ class Status extends ImmutablePureComponent {
       mention: this.handleHotkeyMention,
       openProfile: this.handleHotkeyOpenProfile,
       toggleHidden: this.handleHotkeyToggleHidden,
+      toggleSensitive: this.handleHotkeyToggleSensitive,
     };
 
     return (
@@ -455,6 +468,8 @@ class Status extends ImmutablePureComponent {
                   onOpenMedia={this.handleOpenMedia}
                   onToggleHidden={this.handleToggleHidden}
                   domain={domain}
+                  showMedia={this.state.showMedia}
+                  onToggleMediaVisibility={this.handleToggleMediaVisibility}
                 />
 
                 <ActionBar