added virtual destructors in classes that have virtual methods

to prevent future memory leaks (bzr r3587.4.1)

3 files changed, 3 insertions, 1 deletions

diff --git a/launcher/EdgeBarrierController.h b/launcher/EdgeBarrierController.h
index d55ffb49d..eb91f7df7 100644
--- a/launcher/EdgeBarrierController.h
+++ b/launcher/EdgeBarrierController.h
@@ -36,6 +36,7 @@ struct EdgeBarrierSubscriber
 NEEDS_RELEASE
 };
 
+ virtual ~EdgeBarrierSubscriber() {}
 virtual Result HandleBarrierEvent(PointerBarrierWrapper* owner, BarrierEvent::Ptr event) = 0;
 };
 
diff --git a/launcher/LauncherDragWindow.h b/launcher/LauncherDragWindow.h
index 0d561dd47..f7a37f952 100644
--- a/launcher/LauncherDragWindow.h
+++ b/launcher/LauncherDragWindow.h
@@ -42,7 +42,7 @@ public:
 typedef std::function<void(nux::GraphicsEngine&, nux::ObjectPtr<nux::IOpenGLBaseTexture> const&)> DeferredIconRenderer;
 
 LauncherDragWindow(unsigned size, DeferredIconRenderer const&);
- ~LauncherDragWindow();
+ virtual ~LauncherDragWindow();
 
 void SetAnimationTarget(int x, int y);
 void StartQuickAnimation();
diff --git a/launcher/SwitcherControllerImpl.h b/launcher/SwitcherControllerImpl.h
index 255570e6f..8cc3953f7 100644
--- a/launcher/SwitcherControllerImpl.h
+++ b/launcher/SwitcherControllerImpl.h
@@ -45,6 +45,7 @@ struct Controller::Impl : public sigc::trackable
 Impl(Controller* obj,
 unsigned int load_timeout,
 Controller::WindowCreator const& create_window);
+ virtual ~Impl() {}
 
 void Show(ShowMode show, SortMode sort, std::vector<launcher::AbstractLauncherIcon::Ptr> results);
 void Hide(bool accept_state);