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iOS: Don't assume our UIWindow is a QUIWindow

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Change-Id: I6494e4a476273b131aedcf409abdb1ffffa5b62e
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
(cherry picked from commit ab9b026d2734321f1d5a06b79f97107a867687c3)
This commit is contained in:
Tor Arne Vestbø 2018-04-09 15:46:14 +02:00
parent 6b98d97670
commit dc55000140
1 changed files with 2 additions and 1 deletions
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3
src/plugins/platforms/ios/quiview.mm
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@ -440,7 +440,8 @@ Q_LOGGING_CATEGORY(lcQpaTablet, "qt.qpa.input.tablet")
if (m_activeTouches.isEmpty())
return;
if (!static_cast<QUIWindow *>(self.window).sendingEvent) {
if ([self.window isKindOfClass:[QUIWindow class]] &&
!static_cast<QUIWindow *>(self.window).sendingEvent) {
// The event is likely delivered as part of delayed touch delivery, via
// _UIGestureEnvironmentSortAndSendDelayedTouches, due to one of the two
// _UISystemGestureGateGestureRecognizer instances on the top level window