main.qml

gistfile1.txt

import QtQuick 2.11
import QtQuick.Window 2.11
import QtQuick.Controls 2.4
import QtQml 2.11

ApplicationWindow {
    id: main_window

    visible: true
    width: 800
    height: 500

    Item {
        anchors.fill: parent

        Timer {
          id: theTimer

          interval: 10000
          running: false
          repeat: false

          onTriggered: {
            console.log( "triggered" )
            blockingPopup.close()
          }
        }

        Popup {
            id: blockingPopup

            width: 300
            height: 50
            modal: true
            focus: true
            closePolicy: Popup.NoAutoClose
        }

        Button {
            text: "Btn"
            onClicked: {
              console.log( "clicked" )

              theTimer.start();

              blockingPopup.open();
            }
        }
    }
}