Custom QML objects

[Tikani]

Hi! :) How to create new objects in QML, utilizing all benefits of programming in object-oriented environment? I want to create a class inheriting Popup with ability of displaying short videos while hover some element in application window. Thanks in advance.

[p3c0]

@Tikani

How to create new objects in QML, utilizing all benefits of programming in object-oriented environment?

Please refer http://doc.qt.io/qt-5/qtqml-javascript-dynamicobjectcreation.html

I want to create a class inheriting Popup with ability of displaying short videos while hover some element in application window.

You can create a custom component which will instantiate Popup. In this custom component you can add your own properties and methods which will be accessible when you instantiate your custom component.
For eg.:
MyPopup.qml

import QtQuick 2.7
import QtQuick.Controls 2.0

Popup {
    property string property1: "abc"
    property bool property2: true
    property int property3: 100

    x: 100
    y: 100
    width: 200
    height: 300
    modal: true
    focus: true
    closePolicy: Popup.CloseOnEscape | Popup.CloseOnPressOutsideParent
}

Using MyPopup

Window {
    id: window
    width: 400
    height: 400
    visible: true

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

    MyPopup {
        id: popup
    }
}