问当使用菜单QML类型时，event.modifiers不工作

EN

Rectangle {
id: main
width: 600
height: 300

Menu {
    id: menu
    title: "Edit";

    MenuItem { text: "Copy";shortcut: "Ctrl+C" }
    MenuItem { text: "Paste";shortcut: "Ctrl+V" }
    MenuItem { text: "Select" }
    MenuItem { text: "Select all";shortcut: "Ctrl+A" }

    MenuSeparator { }
    MenuItem { text: "Delete";shortcut: "Delete" }
    MenuItem { text: "Delete all" }

    MenuSeparator { }
    MenuItem { text: "Auto arrange" }

    }

Keys.onPressed: {
    if((event.key === Qt.Key_C) && (event.modifiers & Qt.ControlModifier))
    {
        console.log("Ctrl+C is pressed")
    }
}

MouseArea{
    anchors.fill : parent;
    acceptedButtons: Qt.LeftButton | Qt.RightButton

    onClicked: {
        main.focus = true;
        if(mouse.button === Qt.RightButton){
            menu.popup();
        }
    }
}
}