Fixed issue gnome-terminator#425 (hide_window will try to show destro…

…yed windows)

terminatorlib/window.py

@@ -40,6 +40,7 @@ class Window(Container, Gtk.Window):
     title = None
     isfullscreen = None
     ismaximised = None
+    isDestroyed = False
     hidebound = None
     hidefunc = None
     losefocus_time = 0
@@ -302,6 +303,7 @@ def on_destroy_event(self, widget, data=None):
             terminal.close()
         self.cnxids.remove_all()
         self.terminator.deregister_window(self)
+        self.isDestroyed = True
         self.destroy()
         del(self)
 
@@ -316,7 +318,8 @@ def on_hide_window(self, data=None):
                 return
             if self.position:
                 self.move(self.position[0], self.position[1])
-            self.show()
+            if(not self.isDestroyed):
+                self.show()
             self.grab_focus()
             try:
                 t = GdkX11.x11_get_server_time(self.get_window())