public void dispose() {
clearPaneActionHandlers();
IHandlerService service = getHandlerService();
if (service == null) return;
service.deactivateHandlers(fActivations);
fActivations.clear();
fDisposed = true;
}
public void updatePaneActionHandlers(Runnable runnable) {
clearPaneActionHandlers();
runnable.run();
updateActionBars();
}