2 files changed, 6 insertions, 1 deletions
diff --git a/Swift/QtUI/WindowsNotifier.cpp b/Swift/QtUI/WindowsNotifier.cpp
index 1789451..212f0ca 100644
--- a/Swift/QtUI/WindowsNotifier.cpp
+++ b/Swift/QtUI/WindowsNotifier.cpp
@@ -41,10 +41,14 @@ void WindowsNotifier::showMessage(Type type, const std::string& subject, const s
 	tray->showMessage(P2QSTRING(subject), P2QSTRING(description), type == SystemMessage ? QSystemTrayIcon::Information : QSystemTrayIcon::NoIcon, timeout * 1000);
 }
 
 void WindowsNotifier::handleMessageClicked() {
 	if (lastCallback) {
 		lastCallback();
 	}
 }
 
+void WindowsNotifier::purgeCallbacks() {
+	lastCallback = boost::function<void()>();
+}
+
 }
diff --git a/Swift/QtUI/WindowsNotifier.h b/Swift/QtUI/WindowsNotifier.h
index 062b76f..b2b5577 100644
--- a/Swift/QtUI/WindowsNotifier.h
+++ b/Swift/QtUI/WindowsNotifier.h
@@ -17,19 +17,20 @@ class QSystemTrayIcon;
 namespace Swift {
 	class WindowsNotifier : public QObject, public Notifier {
 			Q_OBJECT
 
 		public:
 			WindowsNotifier(const std::string& name, const boost::filesystem::path& icon, QSystemTrayIcon* tray);
 			~WindowsNotifier();
 
 			virtual void showMessage(Type type, const std::string& subject, const std::string& description, const boost::filesystem::path& picture, boost::function<void()> callback);
-		
+			virtual void purgeCallbacks();
+
 		private slots:
 			void handleMessageClicked();
 
 		private:
 			QSystemTrayIcon* tray;
 			Win32NotifierWindow* notifierWindow;
 			SnarlNotifier* snarlNotifier;
 			boost::function<void()> lastCallback;
 	};