Create notifications if window is not focused

Track focus using focus and blur events.

// FREEBIE

js/panel_controller.js

@@ -27,10 +27,12 @@
 
         if (inboxOpened) {
             conversation.trigger('newmessages');
-            extension.windows.drawAttention(inboxWindowId);
-            if (!appWindow.isMinimized()) {
+            if (inboxFocused) {
                 return;
             }
+            if (inboxOpened) {
+                extension.windows.drawAttention(inboxWindowId);
+            }
         }
 
         if (Whisper.Notifications.isEnabled()) {
@@ -54,6 +56,7 @@
     };
 
     /* Inbox window controller */
+    var inboxFocused = false;
     var inboxOpened = false;
     var inboxWindowId = 'inbox';
     var appWindow = null;
@@ -77,6 +80,13 @@
                     appWindow = null;
                 });
 
+                appWindow.contentWindow.addEventListener('blur', function() {
+                    inboxFocused = false;
+                });
+                appWindow.contentWindow.addEventListener('focus', function() {
+                    inboxFocused = true;
+                });
+
                 // close the panel if background.html is refreshed
                 extension.windows.beforeUnload(function() {
                     // TODO: reattach after reload instead of closing.