improve debugging and ensure that we can't register terminals/windows multiple times

terminatorlib/newterminator.py

@@ -46,6 +46,7 @@ class Terminator(Borg):
 
     def register_window(self, window):
         """Register a new window widget"""
+        if window not in self.windows:
             dbg('Terminator::register_window: registering %s' % window)
             self.windows.append(window)
 
@@ -56,6 +57,7 @@ class Terminator(Borg):
 
     def register_terminal(self, terminal):
         """Register a new terminal widget"""
+        if terminal not in self.terminals:
             dbg('Terminator::register_terminal: registering %s' % terminal)
             self.terminals.append(terminal)
             terminal.connect('ungroup-all', self.ungroup_all)
@@ -69,6 +71,9 @@ class Terminator(Borg):
         if len(self.terminals) == 0:
             for window in self.windows:
                 window.destroy()
+        else:
+            dbg('Terminator::deregister_terminal: %d terminals remain' %
+                    len(self.terminals))
 
     def reconfigure_terminals(self):
         """Tell all terminals to update their configuration"""