Focus on selected status in status list, add moveUp/moveDown hotkeys to tombstone

Signed-off-by: marcin mikołajczak <git@mkljczk.pl>

app/soapbox/components/status-reply-mentions.tsx

@@ -1,4 +1,3 @@
-import { List as ImmutableList } from 'immutable';
 import React from 'react';
 import { FormattedList, FormattedMessage } from 'react-intl';
 import { Link } from 'react-router-dom';
@@ -7,7 +6,7 @@ import { openModal } from 'soapbox/actions/modals';
 import HoverRefWrapper from 'soapbox/components/hover_ref_wrapper';
 import { useAppDispatch } from 'soapbox/hooks';
 
-import type { Status } from 'soapbox/types/entities';
+import type { Account, Status } from 'soapbox/types/entities';
 
 interface IStatusReplyMentions {
   status: Status,
@@ -19,17 +18,19 @@ const StatusReplyMentions: React.FC<IStatusReplyMentions> = ({ status }) => {
   const handleOpenMentionsModal: React.MouseEventHandler<HTMLSpanElement> = (e) => {
     e.stopPropagation();
 
+    const account = status.account as Account;
+
     dispatch(openModal('MENTIONS', {
-      username: status.getIn(['account', 'acct']),
+      username: account.acct,
-      statusId: status.get('id'),
+      statusId: status.id,
     }));
   };
 
-  if (!status.get('in_reply_to_id')) {
+  if (!status.in_reply_to_id) {
     return null;
   }
 
-  const to = status.get('mentions', ImmutableList());
+  const to = status.mentions;
 
   // The post is a reply, but it has no mentions.
   // Rare, but it can happen.
@@ -46,14 +47,14 @@ const StatusReplyMentions: React.FC<IStatusReplyMentions> = ({ status }) => {
 
   // The typical case with a reply-to and a list of mentions.
   const accounts = to.slice(0, 2).map(account => (
-    <HoverRefWrapper accountId={account.get('id')} inline>
+    <HoverRefWrapper key={account.id} accountId={account.id} inline>
-      <Link to={`/@${account.get('acct')}`} className='reply-mentions__account'>@{account.get('username')}</Link>
+      <Link to={`/@${account.acct}`} className='reply-mentions__account'>@{account.username}</Link>
     </HoverRefWrapper>
   )).toArray();
 
   if (to.size > 2) {
     accounts.push(
-      <span className='hover:underline cursor-pointer' role='presentation' onClick={handleOpenMentionsModal}>
+      <span key='more' className='hover:underline cursor-pointer' role='presentation' onClick={handleOpenMentionsModal}>
         <FormattedMessage id='reply_mentions.more' defaultMessage='{count} more' values={{ count: to.size - 2 }} />
       </span>,
     );

app/soapbox/components/tombstone.tsx

@@ -1,16 +1,30 @@
 import React from 'react';
+import { HotKeys } from 'react-hotkeys';
 import { FormattedMessage } from 'react-intl';
 
 import { Text } from 'soapbox/components/ui';
 
+interface ITombstone {
+  id: string,
+  onMoveUp: (statusId: string) => void,
+  onMoveDown: (statusId: string) => void,
+}
+
 /** Represents a deleted item. */
-const Tombstone: React.FC = () => {
+const Tombstone: React.FC<ITombstone> = ({ id, onMoveUp, onMoveDown }) => {
+  const handlers = {
+    moveUp: () => onMoveUp(id),
+    moveDown: () => onMoveDown(id),
+  };
+
   return (
-    <div className='p-9 flex items-center justify-center sm:rounded-xl bg-gray-100 border border-solid border-gray-200 dark:bg-slate-900 dark:border-slate-700'>
+    <HotKeys handlers={handlers}>
+      <div className='p-9 flex items-center justify-center sm:rounded-xl bg-gray-100 border border-solid border-gray-200 dark:bg-slate-900 dark:border-slate-700 focusable' tabIndex={0}>
         <Text>
           <FormattedMessage id='statuses.tombstone' defaultMessage='One or more posts is unavailable.' />
         </Text>
       </div>
+    </HotKeys>
   );
 };
 

app/soapbox/features/status/index.tsx

@@ -561,7 +561,12 @@ class Status extends ImmutablePureComponent<IStatus, IStatusState> {
   renderTombstone(id: string) {
     return (
       <div className='py-4 pb-8'>
-        <Tombstone key={id} />
+        <Tombstone
+          key={id}
+          id={id}
+          onMoveUp={this.handleMoveUp}
+          onMoveDown={this.handleMoveDown}
+        />
       </div>
     );
   }
@@ -635,6 +640,8 @@ class Status extends ImmutablePureComponent<IStatus, IStatusState> {
         index: this.props.ancestorsIds.size,
         offset: -80,
       });
+
+      setImmediate(() => this.status?.querySelector('a')?.focus());
     }
   }