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  1. Qt
  2. QTBUG-111584

TapHandler steals events with gesturePolicy WithinBounds

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    • iOS/tvOS/watchOS

      The following example tries to nail down the problem, while the original code is a bit more complex. The original code is in turn the reason why I need to set the gesturePolicy to TapHandler.WithinBounds.

      There are two button like objects that overlap for some reason (the original has a flickable and an overlaying button). The problem is, that clicking the overlay button also triggers the element below (on the first click after the mouse has been moved).

      import QtQuick
import QtQuick.Controls.Material
 
Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    Rectangle {
        id: superButton
        width: label.width + 20
        height: normalButton.height
        color: "green"

        Text {
            id: label
            text: "Superbutton with click magnetic super power"
            color: "white"
            anchors.centerIn: parent
        }

        TapHandler {
            onTapped: () => console.log("'green' tapped")
            grabPermissions: PointerHandler.TakeOverForbidden
            gesturePolicy: TapHandler.WithinBounds
        }
    }

    Button {
        id: normalButton
        text: "Tap me!"
        onClicked: () => console.log("'normal' tapped")
    }    
}

      The expected behaviour is, that only the on top element receives the event in the given configuration.

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            qt.team.quick.subscriptions Qt Quick and Widgets Team
            cajus Cajus Pollmeier
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              Created:
              Updated:
              Resolved:

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