Menu doesn't close when clicking outside window or into child window

import QtQuick
import QtQuick.Controls

Window {
    id: window
    width: 320
    height: 400
    visible: true
    title: 'Main window'

    Menu {
        id: menu
        MenuItem { text: 'Item1' }
        MenuItem { text: 'Item2' }
        MenuItem { text: 'Item3' }
    }

    TapHandler {
        acceptedButtons: Qt.RightButton
        onTapped: menu.open()
    }

    Window {
        width: 200
        height: 200
        visible: true
        title: 'Child window'
        x: window.x + window.width
        y: window.y + window.height - height
    }
}

        onActiveFocusChanged: {
            if (!activeFocus)
                close()
        }