[Qt-qml] Propagating MouseArea Events

[Gregory Schlomoff]

I've already raised this issue before. See:
http://comments.gmane.org/gmane.comp.lib.qt.qml/2041 and
http://bugreports.qt.nokia.com/browse/QTBUG-13007

Basically, the accepted property is totally useless in this situation,
and doesn't complies wih it's documentation.

As far as I can tell, setting accepted to false only has effect for
double clicks. See Qt QML docs about this
(http://doc.qt.nokia.com/main-snapshot/qml-mousearea.html#onDoubleClicked-signal).
This is why you're getting clicked + doubleclick

One solution to propagate the click is do to a hit test in the mouse
area that is getting the onClick event and manually calling the
onClick handler of the other mousearea. I gave example of this in the
pages referenced above.

Cheers,

Greg

On Tue, Mar 15, 2011 at 6:33 PM,  <shiv.sood at nokia.com> wrote:
> Hi There,
>        Have a need to propagate MouseArea events to 2 overlapping MouseArea Elements. Expected the following code to work and pass events across 2 mouse Areas. What is see is that
>
> -  "outerMouseArea" is not passing the single click event to the "innerMouseArea" though I have set the mouse.accepted = false in   outerMouseArea::onClicked(). How can these Mouse Areas pass events so that innerMouseArea handles a given type of event while the outerMouseArea handles the other event.
> - Also for every doubleClick I see the onClicked() also being called. If there a way to only signal doubleClick() event and not a clicked() followed by dobuleClick()
>
> Rectangle {
>    height:400
>    width: 800
>    color: "red"
>
>    Rectangle {
>        width: 360
>        height: 360
>        anchors.centerIn: parent
>        color: "blue"
>
>        Rectangle {
>            width:80
>            height: 100
>            anchors.centerIn: parent
>            color:  "green"
>                MouseArea {
>                    id: innerMouseArea
>                    anchors.fill: parent
>                    onClicked: {
>                        mouse.accepted = true;
>                        console.log ("single click accepted")
>                    }
>            }
>        }
>
>        MouseArea {
>            id:outerMouseArea
>            anchors.fill: parent
>
>            onDoubleClicked: {
>                console.log ("double click accepted")
>                mouse.accepted = true;
>            }
>
>            onClicked: {
>                console.log ("pass on the single click event")
>                mouse.accepted = false;
>           }
>        }
>    }
>  }
>
>
> Regards,
> Shiv
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