Detect Clicks outside QML Window

How do i detect clicks outside Window {} in QML ?

Code:

---

Rectangle {
   id: topLevel
 
   height: 400; width: 400
 
   Window {
      id: windowObj
 
      color: "blue"
      height: 200; width: 200
      onActiveChanged { console.trace() }
   }
 
   Component.onCompleted: windowObj.visible = true
}

---

Suppose I click on some part of topLevel outside windowObj.
onActiveChanged works on Windows but not on MAC.


{Using: QtQuick 2.1, QtQuick.Window 2.1, QML/Qt 5.2.0}

Hi,
maybe i m wrong but in C++ you can grab mouse event, and catch them even if mouse is outside window. Maybe a similary think in QtQuick is possible. And you just test after if coordonate are outside the window.
Sincerely