How to set objectName for PopupItem from QML?

Question

QML Popup and derived controls are creating a PopupItem object which is a visual representation of it, but Popup itself is parented to the contentData of the application window. objectName specified for Popup is not applied to PopupItem. For example, the following application:

import QtQuick 2.12
import QtQuick.Controls 2.12

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr("Popup Test")

    Button {
        text: "Open"
        onClicked: dummyPopup.open()
    }

    Popup {
        id: dummyPopup
        objectName: "dummyPopup"
        x: 100
        y: 100
        width: 200
        height: 300
        modal: true
        focus: true
    }
}

creates PopupItem with empty objectName

Is there a way to set objectName for PopupItem from QML?

Answer 1

Set the objectName of its contentItem upon completion:

import QtQuick 2.12
import QtQuick.Window 2.12
import QtQuick.Controls 2.12

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr("Popup Test")

    Button {
        text: "Open"
        onClicked: dummyPopup.open()
    }

    Popup {
        id: dummyPopup
        objectName: "dummyPopup"
        x: 100
        y: 100
        width: 200
        height: 300
        modal: true
        focus: true

        Component.onCompleted: {
            contentItem.objectName = "foo"
            print(contentItem)
        }
    }
}

By the way, if this is for auto tests, I have a hack in C++ that avoids the need to give an objectName to the contentItem:

QObject *TestHelper::findPopupFromTypeName(const QString &typeName) const
{
    QObject *popup = nullptr;
    foreach (QQuickItem *child, overlay->childItems()) {
        if (QString::fromLatin1(child->metaObject()->className()) == "QQuickPopupItem") {
            if (QString::fromLatin1(child->parent()->metaObject()->className()).contains(typeName)) {
                popup = child->parent();
                break;
            }
        }
    }
    return popup;
}

You can then use that function like this in your test:

const QObject *newProjectPopup = findPopupFromTypeName("NewProjectPopup");
QVERIFY(newProjectPopup);
QTRY_VERIFY(newProjectPopup->property("opened").toBool());