mac, linux: Show a notification after trying to reopen the app twice

SparkleShare/Linux/SparkleUI.cs

@@ -54,11 +54,18 @@ namespace SparkleShare {
         private void ApplicationActivatedDelegate (object sender, EventArgs args)
         {
             if (this.application.Windows.Length > 0) {
+                bool has_visible_windows = false;
+
                 foreach (Window window in this.application.Windows) {
-                    if (window.Visible)
+                    if (window.Visible) {
                         window.Present ();
+                        has_visible_windows = true;
+                    }
                 }
 
+                if (!has_visible_windows)
+                    Program.Controller.HandleReopen ();
+
             } else {
                 Setup      = new SparkleSetup ();
                 EventLog   = new SparkleEventLog ();

SparkleShare/Mac/SparkleUI.cs

@@ -58,7 +58,7 @@ namespace SparkleShare {
 
         public void Run ()
         {
-            NSApplication.Main (new string [0]);
+            NSApplication.Main (Program.Arguments);
         }
 
 
@@ -76,5 +76,14 @@ namespace SparkleShare {
         {
             Program.Controller.Quit ();
         }
+
+        
+        public override bool ApplicationShouldHandleReopen (NSApplication sender, bool has_visible_windows)
+        {
+            if (!has_visible_windows)
+                Program.Controller.HandleReopen ();
+
+            return true;
+        }
     }
 }

SparkleShare/Program.cs

@@ -27,6 +27,7 @@ namespace SparkleShare {
 
         public static SparkleController Controller;
         public static SparkleUI UI;
+        public static string [] Arguments;
 
         private static Mutex program_mutex = new Mutex (false, "SparkleShare");
         
@@ -36,6 +37,8 @@ namespace SparkleShare {
         #endif
         public static void Main (string [] args)
         {
+            Arguments = args;
+
             if (args.Length != 0 && !args [0].Equals ("help") &&
                 SparkleBackend.Platform != PlatformID.MacOSX &&
                 SparkleBackend.Platform != PlatformID.Win32NT) {

SparkleShare/SparkleControllerBase.cs

@@ -232,6 +232,20 @@ namespace SparkleShare {
         }
 
 
+
+        private int reopen_attempt_counts = 0;
+
+        public void HandleReopen ()
+        {
+            reopen_attempt_counts++;
+
+            if (reopen_attempt_counts > 1) {
+                AlertNotificationRaised ("Hello!", "SparkleShare sits right here, as a status icon.");
+                reopen_attempt_counts = 0;
+            }
+        }
+
+
         public void UIHasLoaded ()
         {
             if (this.lost_folders_path) {