swig/CommitCallbacks.h

   1 class CommitCallbacks {
   2
   3   private:
   4     PatchMessageReportReceiver _messageReceiver;
   5     PatchScriptReportReceiver _scriptReceiver;
   6     RemoveResolvableReportReceiver _installReceiver;
   7     InstallResolvableReportReceiver _removeReceiver;
   8     Target_Type _instance;
   9
  10   public:
  11     CommitCallbacks()
  12      : _instance(Target_Null)
  13     {
  14       _messageReceiver.connect();
  15       _scriptReceiver.connect();
  16       _installReceiver.connect();
  17       _removeReceiver.connect();
  18     }
  19
  20     ~CommitCallbacks()
  21     {
  22       _removeReceiver.disconnect();
  23       _installReceiver.disconnect();
  24       _scriptReceiver.disconnect();
  25       _messageReceiver.disconnect();
  26       disconnect();
  27     }
  28    /*
  29     * Connect callback to receiver instance
  30     * Pass NULL receiver to disconnect
  31     *
  32     */
  33     void connect(Target_Type instance) {
  34       disconnect();
  35       if (instance) {
  36         _instance = instance;
  37         Target_INCREF(_instance);
  38         _messageReceiver.instance = _instance;
  39         _scriptReceiver.instance = _instance;
  40         _installReceiver.instance = _instance;
  41         _removeReceiver.instance = _instance;
  42       }
  43     }
  44     /*
  45      * Disconnect receiver instance
  46      *
  47      */
  48     void disconnect() {
  49       if (_instance != Target_Null) {
  50         _messageReceiver.instance = Target_Null;
  51         _scriptReceiver.instance = Target_Null;
  52         _installReceiver.instance = Target_Null;
  53         _removeReceiver.instance = Target_Null;
  54         Target_DECREF(_instance);
  55         _instance = Target_Null;
  56       }
  57     }
  58     /*
  59      * Get current receiver instance
  60      *
  61      */
  62     Target_Type receiver() {
  63       return _instance;
  64     }
  65 };