Account for when a touch event is synthesized by Qt as a mouse event

When a control is on a Flickable with a pressDelay then any press events
sent from a touch device will be replayed as mouse events due to the
delay. As a result we cannot depend on the fact that we got the first
press as a touch event when checking if the id matches before accepting
it. So we need to keep the previous pos when it is a synthesized mouse
event so we can ensure the release is also accepted.

Fixes: QTBUG-77202
Change-Id: I6f5d8506bd803daf834093e8fd412504150c4ca6
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/quicktemplates2/qquickcontrol_p_p.h b/src/quicktemplates2/qquickcontrol_p_p.h
index a657307b..1b59f86d 100644
--- a/src/quicktemplates2/qquickcontrol_p_p.h
+++ b/src/quicktemplates2/qquickcontrol_p_p.h
@@ -224,7 +224,9 @@ public:
     bool explicitHoverEnabled = false;
 #endif
     bool resizingBackground = false;
+    bool pressWasTouch = false;
     int touchId = -1;
+    QPointF previousPressPos;
     qreal padding = 0;
     qreal horizontalPadding = 0;
     qreal verticalPadding = 0;