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// Copyright (C) 2026 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// This file simulates hand-written QML business logic part of the application.
// The UI elements are accessed via ObjectRegistry references.
import QtQuick
import QtQml.DesignSupport
Item {
id: root
ListModel {
id: contactsModel
ListElement {
name: "Entry A"
number: "1"
}
ListElement {
name: "Entry B"
number: "2"
}
ListElement {
name: "Entry C"
number: "3"
}
}
ObjectRegistryRef {
id: listViewRef
key: "ListView"
onObjectChanged: (object)=> {
object.model = contactsModel
// Manual check that object property values are all initialized
console.log("listView - x: " + object.x)
console.log("listView - width: " + object.width)
console.log("listView - height: " + object.height)
console.log("listView - myValue: " + object.myValue)
console.log("listView - parent: " + object.parent)
}
}
ObjectRegistryRef {
id: firstRectRef
key: "FirstRect"
}
ObjectRegistryRef {
id: secondRectRef
key: "SecondRect"
}
ObjectRegistryRef {
id: swapButtonTextRef
key: "SwapButtonText"
}
ObjectRegistryRef {
id: buttonRef
key: "MyButton"
Connections {
target: buttonRef.object
function onClicked(mouse) {
let tempColor = firstRectRef.object.color.toString()
firstRectRef.object.color = secondRectRef.object.color
secondRectRef.object.color = tempColor
// This will stop working after "CppDeleteObjButton" is deleted due to duplicate
// registration with one of the registrations deleted
if (swapButtonTextRef.object)
swapButtonTextRef.object.color = firstRectRef.object.color
}
}
}
MultiObjectRegistryRef {
id: repeaterRef
key: "RepeatedRect"
onObjectAdded: (object)=> {
object.clicked.connect(function (mouse) { clickedHandler(object, mouse); })
}
function clickedHandler(object, mouse) {
indexTextRef.object.text = "Clicked index: " + object.repeaterIndex
}
ObjectRegistryRef {
id: indexTextRef
key: "IndexText"
}
}
MultiObjectRegistryRef {
id: listRef
key: "ListDelegate"
onObjectAdded: (object)=> {
console.log("object added to list=" + object.ListView.view
+ ", count: " + listRef.objects.length)
object.clicked.connect(function () { clickedHandler(object); })
}
onObjectRemoved: (object)=> {
// Note: object will be null if removal happens because of object destruction
console.log("object removed from list=" + object + ", count: " + listRef.objects.length)
}
function clickedHandler(object) {
listLabelRef.object.text = "Clicked delegate: " + object.text
}
ObjectRegistryRef {
id: listLabelRef
key: "List Label"
onObjectChanged: (object)=> {
// Manual check that object property values are all initialized
console.log("listLabel - x: " + object.x)
console.log("listLabel - text: " + object.text)
console.log("listLabel - font.bold: " + object.font.bold)
console.log("listLabel - font.italic: " + object.font.italic)
console.log("listLabel - font.family: " + object.font.family)
console.log("listLabel - parent: " + object.parent)
}
}
}
ObjectRegistryRef {
id: addRef
key: "AddButton"
property int nextNumber: 4
Connections {
target: addRef.object
function onClicked(mouse) {
contactsModel.append({name:"New Entry", number: "" + addRef.nextNumber++})
}
}
}
ObjectRegistryRef {
id: removeRef
key: "RemoveButton"
Connections {
target: removeRef.object
function onClicked(mouse) {
contactsModel.remove(contactsModel.count - 1, 1)
}
}
}
// Test registering two objects with one key warning
ObjectRegistryRef {
key: "DoubleRegister"
}
}