Details
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Bug
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Resolution: Done
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P1: Critical
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6.0.0 Beta3
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None
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262d7eb305e1dea8dac660bec3ccc50193258ea9 (qt/qtdeclarative/dev)
Description
Easy to see with qtdeclarative/tests/manual/pointer/pinchAndWheel.qml for example: you're supposed to be able to spin the mouse wheel to zoom in and out, but it will only work once, until you move the mouse. The reason is here:
bool QQuickItemPrivate::handlePointerEvent(QPointerEvent *event, bool avoidExclusiveGrabber)
{
bool delivered = false;
if (extra.isAllocated()) {
for (QQuickPointerHandler *handler : extra->pointerHandlers) {
bool avoidThisHandler = false;
if (avoidExclusiveGrabber) {
for (auto &p : event->points()) {
if (event->exclusiveGrabber(p) == handler) {
avoidThisHandler = true;
break;
}
}
}
if (!avoidThisHandler && QQuickPointerHandlerPrivate::deviceDeliveryTargets(event->device()).contains(handler))
qDebug() << "avoiding" << handler << "because it's in deviceDeliveryTargets" << event;
if (!avoidThisHandler &&
!QQuickPointerHandlerPrivate::deviceDeliveryTargets(event->device()).contains(handler)) {
handler->handlePointerEvent(event);
delivered = true;
}
}
}
return delivered;
}
QQuickWindowPrivate::deliverPointerEvent() clears deviceDeliveryTargets but QQuickWindowPrivate::deliverSinglePointEventUntilAccepted() does not.