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authorJohan Klokkhammer Helsing <johan.helsing@qt.io>2019-11-04 14:21:18 +0100
committerJohan Helsing <johan.helsing@qt.io>2019-11-06 07:50:41 +0000
commit44fbe562b544119a9d23a72c3d577d2946c72162 (patch)
tree24c08264f16ea3ccc0714556d727c4cb674c4fe1 /src
parent8676fb35b3efed69d39d17070e78bc93055939ee (diff)
Fix touch being ignored when down and motion are in the same frame
The Wayland protocol gives no guarantees about which events are part of a frame, so handle the case where we receive wl_touch.down and wl_touch.motion within the same frame. Fixes: QTBUG-79744 Change-Id: I5dd9302576d81da38e003c8e7e74da6a98def603 Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io> (cherry picked from commit 57c28f461a066c03ef8ae3f823c040fa91876fb8)
Diffstat (limited to 'src')
-rw-r--r--src/client/qwaylandinputdevice.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/client/qwaylandinputdevice.cpp b/src/client/qwaylandinputdevice.cpp
index e781d4768..107442daf 100644
--- a/src/client/qwaylandinputdevice.cpp
+++ b/src/client/qwaylandinputdevice.cpp
@@ -942,7 +942,10 @@ void QWaylandInputDevice::handleTouchPoint(int id, Qt::TouchPointState state, co
tp.area.moveCenter(globalPosition);
}
- tp.state = state;
+ // If the touch point was pressed earlier this frame, we don't want to overwrite its state.
+ if (tp.state != Qt::TouchPointPressed)
+ tp.state = state;
+
tp.pressure = tp.state == Qt::TouchPointReleased ? 0 : 1;
}