Fix “Mention” appearing for otherwise filtered posts (mastodon#32356)

app/javascript/mastodon/features/notifications_v2/components/notification_with_status.tsx

@@ -13,6 +13,7 @@ import {
 import type { IconProp } from 'mastodon/components/icon';
 import { Icon } from 'mastodon/components/icon';
 import Status from 'mastodon/containers/status_container';
+import { getStatusHidden } from 'mastodon/selectors/filters';
 import { useAppSelector, useAppDispatch } from 'mastodon/store';
 
 import { DisplayedName } from './displayed_name';
@@ -48,6 +49,12 @@ export const NotificationWithStatus: React.FC<{
     (state) => state.statuses.getIn([statusId, 'visibility']) === 'direct',
   );
 
+  const isFiltered = useAppSelector(
+    (state) =>
+      statusId &&
+      getStatusHidden(state, { id: statusId, contextType: 'notifications' }),
+  );
+
   const handlers = useMemo(
     () => ({
       open: () => {
@@ -73,7 +80,7 @@ export const NotificationWithStatus: React.FC<{
     [dispatch, statusId],
   );
 
-  if (!statusId) return null;
+  if (!statusId || isFiltered) return null;
 
   return (
     <HotKeys handlers={handlers}>

app/javascript/mastodon/selectors/filters.ts

@@ -0,0 +1,50 @@
+import { createSelector } from '@reduxjs/toolkit';
+
+import type { RootState } from 'mastodon/store';
+import { toServerSideType } from 'mastodon/utils/filters';
+
+// TODO: move to `app/javascript/mastodon/models` and use more globally
+type Filter = Immutable.Map<string, unknown>;
+
+// TODO: move to `app/javascript/mastodon/models` and use more globally
+type FilterResult = Immutable.Map<string, unknown>;
+
+export const getFilters = createSelector(
+  [
+    (state: RootState) => state.filters as Immutable.Map<string, Filter>,
+    (_, { contextType }: { contextType: string }) => contextType,
+  ],
+  (filters, contextType) => {
+    if (!contextType) {
+      return null;
+    }
+
+    const now = new Date();
+    const serverSideType = toServerSideType(contextType);
+
+    return filters.filter((filter) => {
+      const context = filter.get('context') as Immutable.List<string>;
+      const expiration = filter.get('expires_at') as Date | null;
+      return (
+        context.includes(serverSideType) &&
+        (expiration === null || expiration > now)
+      );
+    });
+  },
+);
+
+export const getStatusHidden = (
+  state: RootState,
+  { id, contextType }: { id: string; contextType: string },
+) => {
+  const filters = getFilters(state, { contextType });
+  if (filters === null) return false;
+
+  const filtered = state.statuses.getIn([id, 'filtered']) as
+    | Immutable.List<FilterResult>
+    | undefined;
+  return filtered?.some(
+    (result) =>
+      filters.getIn([result.get('filter'), 'filter_action']) === 'hide',
+  );
+};

app/javascript/mastodon/selectors/index.js

@@ -1,22 +1,11 @@
 import { createSelector } from '@reduxjs/toolkit';
 import { List as ImmutableList, Map as ImmutableMap } from 'immutable';
 
-import { toServerSideType } from 'mastodon/utils/filters';
-
 import { me } from '../initial_state';
 
-export { makeGetAccount } from "./accounts";
-
-const getFilters = createSelector([state => state.get('filters'), (_, { contextType }) => contextType], (filters, contextType) => {
-  if (!contextType) {
-    return null;
-  }
+import { getFilters } from './filters';
 
-  const now = new Date();
-  const serverSideType = toServerSideType(contextType);
-
-  return filters.filter(filter => filter.get('context').includes(serverSideType) && (filter.get('expires_at') === null || filter.get('expires_at') > now));
-});
+export { makeGetAccount } from "./accounts";
 
 export const makeGetStatus = () => {
   return createSelector(