Refresh timeline after toot while the timeline is disconnected (#4858)

To reflect status posting immediately, we've inserted the status into timelines directly. However, status insertion changes "latest status", and it means next timeline refresh only fetches statuses since the inserted status. This behavior is very bad for disconnected timeline and mobile views.

After this patch, it refreshes timeline for disconnected timelines, instead of direct insertion.

app/javascript/mastodon/actions/compose.js

@@ -1,6 +1,11 @@
 import api from '../api';
 
-import { updateTimeline } from './timelines';
+import {
+  updateTimeline,
+  refreshHomeTimeline,
+  refreshCommunityTimeline,
+  refreshPublicTimeline,
+} from './timelines';
 
 export const COMPOSE_CHANGE          = 'COMPOSE_CHANGE';
 export const COMPOSE_SUBMIT_REQUEST  = 'COMPOSE_SUBMIT_REQUEST';
@@ -95,16 +100,20 @@ export function submitCompose() {
       dispatch(submitComposeSuccess({ ...response.data }));
 
       // To make the app more responsive, immediately get the status into the columns
-      dispatch(updateTimeline('home', { ...response.data }));
 
-      if (response.data.in_reply_to_id === null && response.data.visibility === 'public') {
+      const insertOrRefresh = (timelineId, refreshAction) => {
-        if (getState().getIn(['timelines', 'community', 'loaded'])) {
+        if (getState().getIn(['timelines', timelineId, 'online'])) {
-          dispatch(updateTimeline('community', { ...response.data }));
+          dispatch(updateTimeline(timelineId, { ...response.data }));
+        } else if (getState().getIn(['timelines', timelineId, 'loaded'])) {
+          dispatch(refreshAction());
         }
+      };
 
-        if (getState().getIn(['timelines', 'public', 'loaded'])) {
+      insertOrRefresh('home', refreshHomeTimeline);
-          dispatch(updateTimeline('public', { ...response.data }));
+
-        }
+      if (response.data.in_reply_to_id === null && response.data.visibility === 'public') {
+        insertOrRefresh('community', refreshCommunityTimeline);
+        insertOrRefresh('public', refreshPublicTimeline);
       }
     }).catch(function (error) {
       dispatch(submitComposeFail(error));