add support for editing preferences with cmd+, (#52)

app/hyperterm.js

@@ -258,6 +258,7 @@ export default class HyperTerm extends Component {
     this.rpc.on('reset font size', this.resetFontSize);
 
     this.rpc.on('update available', this.onUpdateAvailable);
+    this.rpc.on('preferences', this.editPreferences.bind(this));
   }
 
   clearCurrentTerm () {
@@ -273,6 +274,21 @@ export default class HyperTerm extends Component {
     });
   }
 
+  editPreferences () {
+    this.requestTab();
+    const onsession = ({ uid: _uid }) => {
+      const ondata = ({ uid }) => {
+        if (uid !== _uid) return;
+        this.rpc.removeListener('data', ondata);
+        this.rpc.emit('data', { uid, data: '# Attempting to open ~/.hyperterm.js with your $EDITOR\n' +
+          '# If this doesn\'t work, open it manually with your favorite editor!\n' +
+          '$EDITOR ~/.hyperterm.js\n' });
+      };
+      this.rpc.on('data', ondata);
+    };
+    this.rpc.once('new session', onsession);
+  }
+
   moveTo (n) {
     if (this.state.sessions[n]) {
       this.setActive(n);

menu.js

@@ -15,6 +15,15 @@ module.exports = function createMenu ({ createWindow }) {
         {
           role: 'about'
         },
+        {
+          label: 'Preferences...',
+          accelerator: 'Cmd+,',
+          click (item, focusedWindow) {
+            if (focusedWindow) {
+              focusedWindow.rpc.emit('preferences');
+            }
+          }
+        },
         {
           type: 'separator'
         },