Fix team switch (#4851)

* Fix team switch

* Fix channel switching by using BrowserStore

* Fixes plt-5076 and plt-5068

* Updating styles for Teams sidebar (#4875)

webapp/actions/global_actions.jsx

@@ -53,6 +53,8 @@ export function emitChannelClickEvent(channel) {
             trackPage();
         });
 
+        BrowserStore.setGlobalItem(chan.team_id, chan.id);
+
         AppDispatcher.handleViewAction({
             type: ActionTypes.CLICK_CHANNEL,
             name: chan.name,
@@ -542,7 +544,11 @@ export function emitBrowserFocus(focus) {
 export function redirectUserToDefaultTeam() {
     const teams = TeamStore.getAll();
     const teamMembers = TeamStore.getMyTeamMembers();
-    let teamId = PreferenceStore.get('last', 'team');
+    let teamId = BrowserStore.getGlobalItem('team');
+
+    function redirect(teamName, channelName) {
+        browserHistory.push(`/${teamName}/channels/${channelName}`);
+    }
 
     if (!teams[teamId] && teamMembers.length > 0) {
         let myTeams = [];
@@ -560,12 +566,24 @@ export function redirectUserToDefaultTeam() {
     }
 
     if (teams[teamId]) {
-        const channelId = PreferenceStore.get(teamId, 'channel');
-        let channel = ChannelStore.getChannelById(channelId);
-        if (!channel) {
-            channel = 'town-square';
+        const channelId = BrowserStore.getGlobalItem(teamId);
+        const channel = ChannelStore.getChannelById(channelId);
+        if (channel) {
+            redirect(teams[teamId].name, channel);
+        } else if (channelId) {
+            Client.setTeamId(teamId);
+            Client.getChannel(
+                channelId,
+                (data) => {
+                    redirect(teams[teamId].name, data.channel.name);
+                },
+                () => {
+                    redirect(teams[teamId].name, 'town-square');
+                }
+            );
+        } else {
+            redirect(teams[teamId].name, 'town-square');
         }
-        browserHistory.push(`/${teams[teamId].name}/channels/${channel}`);
     } else {
         browserHistory.push('/select_team');
     }

webapp/actions/websocket_actions.jsx

@@ -6,7 +6,6 @@ import $ from 'jquery';
 import UserStore from 'stores/user_store.jsx';
 import TeamStore from 'stores/team_store.jsx';
 import PostStore from 'stores/post_store.jsx';
-import PreferenceStore from 'stores/preference_store.jsx';
 import ChannelStore from 'stores/channel_store.jsx';
 import BrowserStore from 'stores/browser_store.jsx';
 import ErrorStore from 'stores/error_store.jsx';
@@ -224,11 +223,7 @@ function handleLeaveTeamEvent(msg) {
         if (TeamStore.getCurrentId() === msg.data.team_id) {
             TeamStore.setCurrentId('');
             Client.setTeamId('');
-            PreferenceStore.deletePreference({
-                category: 'last',
-                name: 'team',
-                value: msg.data.team_id
-            });
+            BrowserStore.removeGlobalItem(msg.data.team_id);
             GlobalActions.redirectUserToDefaultTeam();
         }
     } else {