Refactor notification to simplify event handling

src/main.js

@@ -14,6 +14,7 @@ const fs = require('fs');
 const path = require('path');
 
 var settings = require('./common/settings');
+const osVersion = require('./common/osVersion');
 var certificateStore = require('./main/certificateStore').load(path.resolve(app.getPath('userData'), 'certificate.json'));
 var appMenu = require('./main/menus/app');
 const allowProtocolDialog = require('./main/allowProtocolDialog');
@@ -184,15 +185,19 @@ app.on('ready', function() {
       mainWindow.focus();
     });
     ipc.on('notified', function(event, arg) {
-      trayIcon.displayBalloon({
-        icon: path.resolve(__dirname, 'resources/appicon.png'),
-        title: arg.title,
-        content: arg.options.body
-      });
-
-      /* Todo: add idle here */
-      if (config.notifications.flashWindow == 2) {
-        mainWindow.flashFrame(true);
+      if (process.platform === 'win32') {
+        if (config.notifications.flashWindow === 2) {
+          mainWindow.flashFrame(true);
+        }
+        // On Windows 8.1 and Windows 8, a shortcut with a Application User Model ID must be installed to the Start screen.
+        // In current version, use tray balloon for notification
+        if (osVersion.isLowerThanOrEqualWindows8_1()) {
+          trayIcon.displayBalloon({
+            icon: path.resolve(__dirname, 'resources/appicon.png'),
+            title: arg.title,
+            content: arg.options.body
+          });
+        }
       }
     });
 
@@ -215,7 +220,6 @@ app.on('ready', function() {
       else {
         trayIcon.setImage(trayImages.normal);
         trayIcon.setToolTip(app.getName());
-        mainWindow.flashFrame(false);
       }
     });
   }