Qt Quick provides attached property element called KeyNavigation for implementing key navigation support (see http://doc.qt.nokia.com/4.7/qml-keynavigation.html). While the navigation direction normally stays intact when changing the layout direction, in some cases like overflow situations (grid row n -> row n+1) the key navigation behavior may differ between LTR and RTL locales, and should be tested. Also, GridView element provides implicit key navigation that needs to take the flow of the elements into account. Other focus elements FocusPanel and FocusScope should also be tested. See parent task QTBUG-11042 for more info.

Rectangle {
    id: item2
    focus: true
    width: 50; height: 50
    color: focus ? "red" : "lightgray"
    KeyNavigation.left: item1
    KeyNavigation.right: item3
}