Keep track of which timelines are connected live to avoid redundant

refreshes on navigation

app/assets/javascripts/components/actions/timelines.jsx

@@ -14,6 +14,9 @@ export const TIMELINE_EXPAND_FAIL    = 'TIMELINE_EXPAND_FAIL';
 
 export const TIMELINE_SCROLL_TOP = 'TIMELINE_SCROLL_TOP';
 
+export const TIMELINE_CONNECT    = 'TIMELINE_CONNECT';
+export const TIMELINE_DISCONNECT = 'TIMELINE_DISCONNECT';
+
 export function refreshTimelineSuccess(timeline, statuses, skipLoading, next) {
   return {
     type: TIMELINE_REFRESH_SUCCESS,
@@ -76,6 +79,11 @@ export function refreshTimeline(timeline, id = null) {
     let skipLoading = false;
 
     if (newestId !== null && getState().getIn(['timelines', timeline, 'loaded']) && (id === null || getState().getIn(['timelines', timeline, 'id']) === id)) {
+      if (id === null && getState().getIn(['timelines', timeline, 'online'])) {
+        // Skip refreshing when timeline is live anyway
+        return;
+      }
+
       params          = { ...params, since_id: newestId };
       skipLoading     = true;
     }
@@ -162,3 +170,17 @@ export function scrollTopTimeline(timeline, top) {
     top
   };
 };
+
+export function connectTimeline(timeline) {
+  return {
+    type: TIMELINE_CONNECT,
+    timeline
+  };
+};
+
+export function disconnectTimeline(timeline) {
+  return {
+    type: TIMELINE_DISCONNECT,
+    timeline
+  };
+};

app/assets/javascripts/components/containers/mastodon.jsx

@@ -4,7 +4,9 @@ import {
   refreshTimelineSuccess,
   updateTimeline,
   deleteFromTimelines,
-  refreshTimeline
+  refreshTimeline,
+  connectTimeline,
+  disconnectTimeline
 } from '../actions/timelines';
 import { updateNotifications, refreshNotifications } from '../actions/notifications';
 import createBrowserHistory from 'history/lib/createBrowserHistory';
@@ -70,6 +72,14 @@ const Mastodon = React.createClass({
 
     this.subscription = createStream(accessToken, 'user', {
 
+      connected () {
+        store.dispatch(connectTimeline('home'));
+      },
+
+      disconnected () {
+        store.dispatch(disconnectTimeline('home'));
+      },
+
       received (data) {
         switch(data.event) {
         case 'update':
@@ -85,6 +95,7 @@ const Mastodon = React.createClass({
       },
 
       reconnected () {
+        store.dispatch(connectTimeline('home'));
         store.dispatch(refreshTimeline('home'));
         store.dispatch(refreshNotifications());
       }

app/assets/javascripts/components/features/community_timeline/index.jsx

@@ -5,7 +5,9 @@ import Column from '../ui/components/column';
 import {
   refreshTimeline,
   updateTimeline,
-  deleteFromTimelines
+  deleteFromTimelines,
+  connectTimeline,
+  disconnectTimeline
 } from '../../actions/timelines';
 import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
 import ColumnBackButtonSlim from '../../components/column_back_button_slim';
@@ -44,6 +46,18 @@ const CommunityTimeline = React.createClass({
 
     subscription = createStream(accessToken, 'public:local', {
 
+      connected () {
+        dispatch(connectTimeline('community'));
+      },
+
+      reconnected () {
+        dispatch(connectTimeline('community'));
+      },
+
+      disconnected () {
+        dispatch(disconnectTimeline('community'));
+      },
+
       received (data) {
         switch(data.event) {
         case 'update':

app/assets/javascripts/components/features/public_timeline/index.jsx

@@ -5,7 +5,9 @@ import Column from '../ui/components/column';
 import {
   refreshTimeline,
   updateTimeline,
-  deleteFromTimelines
+  deleteFromTimelines,
+  connectTimeline,
+  disconnectTimeline
 } from '../../actions/timelines';
 import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
 import ColumnBackButtonSlim from '../../components/column_back_button_slim';
@@ -44,6 +46,18 @@ const PublicTimeline = React.createClass({
 
     subscription = createStream(accessToken, 'public', {
 
+      connected () {
+        dispatch(connectTimeline('public'));
+      },
+
+      reconnected () {
+        dispatch(connectTimeline('public'));
+      },
+
+      disconnected () {
+        dispatch(disconnectTimeline('public'));
+      },
+
       received (data) {
         switch(data.event) {
         case 'update':

app/assets/javascripts/components/reducers/timelines.jsx

@@ -7,7 +7,9 @@ import {
   TIMELINE_EXPAND_SUCCESS,
   TIMELINE_EXPAND_REQUEST,
   TIMELINE_EXPAND_FAIL,
-  TIMELINE_SCROLL_TOP
+  TIMELINE_SCROLL_TOP,
+  TIMELINE_CONNECT,
+  TIMELINE_DISCONNECT
 } from '../actions/timelines';
 import {
   REBLOG_SUCCESS,
@@ -35,6 +37,7 @@ const initialState = Immutable.Map({
     path: () => '/api/v1/timelines/home',
     next: null,
     isLoading: false,
+    online: false,
     loaded: false,
     top: true,
     unread: 0,
@@ -45,6 +48,7 @@ const initialState = Immutable.Map({
     path: () => '/api/v1/timelines/public',
     next: null,
     isLoading: false,
+    online: false,
     loaded: false,
     top: true,
     unread: 0,
@@ -56,6 +60,7 @@ const initialState = Immutable.Map({
     next: null,
     params: { local: true },
     isLoading: false,
+    online: false,
     loaded: false,
     top: true,
     unread: 0,
@@ -300,6 +305,10 @@ export default function timelines(state = initialState, action) {
     return filterTimelines(state, action.relationship, action.statuses);
   case TIMELINE_SCROLL_TOP:
     return updateTop(state, action.timeline, action.top);
+  case TIMELINE_CONNECT:
+    return state.setIn([action.timeline, 'online'], true);
+  case TIMELINE_DISCONNECT:
+    return state.setIn([action.timeline, 'online'], false);
   default:
     return state;
   }