Add shortcuts to select next/previous tab

src/browser/index.jsx

@@ -54,9 +54,16 @@ var MainPage = React.createClass({
         loginQueue: loginQueue
       });
     });
+    // can't switch tabs sequencially for some reason...
     ipcRenderer.on('switch-tab', (event, key) => {
       this.handleSelect(key);
     });
+    ipcRenderer.on('select-next-tab', (event) => {
+      this.handleSelect(this.state.key + 1);
+    });
+    ipcRenderer.on('select-previous-tab', (event) => {
+      this.handleSelect(this.state.key - 1);
+    });
 
     var focusListener = function() {
       var webview = document.getElementById('mattermostView' + thisObj.state.key);
@@ -72,7 +79,7 @@ var MainPage = React.createClass({
     });
   },
   handleSelect: function(key) {
-    const newKey = key % this.props.teams.length;
+    const newKey = (this.props.teams.length + key) % this.props.teams.length;
     this.setState({
       key: newKey
     });

src/main/menus/app.js

@@ -136,7 +136,8 @@ var createTemplate = function(mainWindow, config) {
       }
     }, ]
   });
-  template.push({
+
+  const window_menu = {
     label: '&Window',
     submenu: [{
       label: 'Minimize',
@@ -166,7 +167,27 @@ var createTemplate = function(mainWindow, config) {
         }
       };
     })]
-  });
+  }
+
+  if (config.teams.length > 1) {
+    window_menu.submenu = window_menu.submenu.concat([{
+      type: 'separator'
+    }, {
+      label: 'Select Next Team',
+      accelerator: (process.platform === 'darwin') ? 'Alt+Cmd+Right' : 'CmdOrCtrl+Tab',
+      click: () => {
+        mainWindow.webContents.send('select-next-tab');
+      }
+    }, {
+      label: 'Select Previous Team',
+      accelerator: (process.platform === 'darwin') ? 'Alt+Cmd+Left' : 'CmdOrCtrl+Shift+Tab',
+      click: () => {
+        mainWindow.webContents.send('select-previous-tab');
+      }
+    }]);
+  }
+  template.push(window_menu);
+
   return template;
 };