Moved responsiblity for checking current event focus onto Widget::handleImplementations().

Added support for closing CombinBox popup when the mouse is clicked outside the popup or combobox widget.


git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14396 16af8721-9629-0410-8352-f15c8da7e697

src/osgUI/PushButton.cpp

@@ -32,6 +32,8 @@ PushButton::PushButton(const osgUI::PushButton& pb, const osg::CopyOp& copyop):
 
 bool PushButton::handleImplementation(osgGA::EventVisitor* ev, osgGA::Event* event)
 {
+    if (!getHasEventFocus()) return false;
+
     osgGA::GUIEventAdapter* ea = event->asGUIEventAdapter();
     if (!ea) return false;