Signal handler not called in qmlscene

[Ferenc]

Hi all,

The following snippet uses PointHandler to track touch events. It is running normally on the target device (embedded device with touchscreen, executing Qt (C++) application), but calls only the direct signal handler testing on my laptop with qmlscene.

import QtQuick 2.12

Item {
    id: root
    Rectangle {
        anchors.fill: parent

        PointHandler {
            id: handler
            property alias position: handler.point.position
            onPositionChanged: function () {
                console.log("xxx")
            }
        }
    }

    Canvas {
        anchors.fill: parent

        Connections {
            target: handler
            function onPositionChanged() {
                console.log("yyy")
            }
        }
    }
}

Running the code above with qmlscene and clicking into the window results in logging only 'xxx' rows:

$ qmlscene tmptest.qml 
qml: xxx
qml: xxx
qml: xxx
[...]

Am I doing something wrong, or is it a bug?

Ubuntu 20.04

Package: libqt5qml5
Version: 5.12.8-0ubuntu1

Package: qmlscene
Version: 5.12.8-0ubuntu1

Thanks,
Ferenc

[KroMignon]

@Ferenc said in Signal handler not called in qmlscene:

Am I doing something wrong, or is it a bug?

Maybe I am wrong but guess handler is out of scope of the Canvas.

[Ferenc]

@KroMignon It is in the same file, why would not be? And after all, it works correctly in a Qt application, so why it behaves differently in qmlscene?