MessageBox.qml

import QtQuick 2.12
import QtQuick.Controls 2.5
import QtQuick.Layouts 1.3

Popup {
    id: msgBox
    property alias content: content

    anchors.centerIn: parent

    property alias title: title.text
    property alias msg: msg.text
    property alias icon: msg.text

    property string mode

    readonly property string mode_error: "error"
    readonly property string mode_information: "information"
    readonly property string mode_warning: "warning"
    readonly property string mode_password: "password"
    readonly property string mode_question: "question"

    Page {
        header: Label {
            id: title
        }

        GridLayout {
            id: content
            anchors.fill: parent
            Button {
                id: msg
                flat: true
                onClicked: msgBox.close()
                icon.name: "dialog-" + mode
            }
        }

    }

    function show(amode, atitle, amsg) {
        msgBox.mode = amode;
        msgBox.title = atitle;
        msgBox.msg = amsg;
        open();
    }
}