TextField inside Rectangle with Keys.onPressed doesn't receive keyboard input

Rectangle {
    id: root

    anchors.fill: parent
    color: "#AA000000"

    Rectangle {
        id: contentHolder
        anchors.top: parent.top
        anchors.left: parent.left
        height: parent.height
        width: parent.width
        color: "transparent"

        Rectangle {
            id: content
            property real spacing: 6
            property real outerSpacing: 12
            property real buttonsRowImplicitWidth: Screen.pixelDensity * 50
            height: childrenRect.height
            width: Screen.primaryOrientation==Qt.PortraitOrientation?root.width * 0.8 : root.width * 0.5
//            color: backgroundColor
//            focus: root.visible
            anchors.centerIn: parent
            Keys.onPressed: {
                event.accepted = true
                if (event.modifiers === Qt.ControlModifier)
                    switch (event.key) {
                    case Qt.Key_A:
                        textInputControl.selectAll()
                        break
                    case Qt.Key_C:
                        textInputControl.copy()
                        break
                } else switch (event.key) {
                    case Qt.Key_Escape:
                    case Qt.Key_Back:
                        button2Clicked()
                        break
                    case Qt.Key_Enter:
                    case Qt.Key_Return:
                        button1Clicked()
                        break
                }
            }

            TextField {
                id: textInputControl
                anchors {
                    left: parent.left
                    right: parent.right
                    top:parent.top
//                    margins: content.outerSpacing
                }

                //work around for bug https://bugreports.qt-project.org/browse/QTBUG-35689
                inputMethodHints: Qt.ImhNoPredictiveText
            }
        }
    }
}