Client: Send release button event on pointer leave

Fixes: QTBUG-97037
Pick-to: 6.6 6.5 6.2 5.15
Change-Id: I151239b276ab5aefe166f5615baf43dab428ce0c
Reviewed-by: David Edmundson <davidedmundson@kde.org>

2 files changed, 8 insertions, 2 deletions

diff --git a/src/client/qwaylandinputdevice.cpp b/src/client/qwaylandinputdevice.cpp
index b39e3a975..24dc93612 100644
--- a/src/client/qwaylandinputdevice.cpp
+++ b/src/client/qwaylandinputdevice.cpp
@@ -716,8 +716,8 @@ public:
 
 void QWaylandInputDevice::Pointer::pointer_leave(uint32_t time, struct wl_surface *surface)
 {
+    releaseButtons();
     invalidateFocus();
-    mButtons = Qt::NoButton;
 
     mParent->mTime = time;
 
@@ -832,6 +832,8 @@ void QWaylandInputDevice::Pointer::pointer_button(uint32_t serial, uint32_t time
     default: return; // invalid button number (as far as Qt is concerned)
     }
 
+    mLastButton = qt_button;
+
     if (state)
         mButtons |= qt_button;
     else
@@ -870,10 +872,13 @@ void QWaylandInputDevice::Pointer::invalidateFocus()
 
 void QWaylandInputDevice::Pointer::releaseButtons()
 {
+    if (mButtons == Qt::NoButton)
+        return;
+
     mButtons = Qt::NoButton;
 
     if (auto *window = focusWindow()) {
-        ReleaseEvent e(focusWindow(), mParent->mTime, mSurfacePos, mGlobalPos, mButtons, Qt::NoButton, mParent->modifiers());
+        ReleaseEvent e(focusWindow(), mParent->mTime, mSurfacePos, mGlobalPos, mButtons, mLastButton, mParent->modifiers());
         window->handleMouse(mParent, e);
     }
 }
diff --git a/src/client/qwaylandinputdevice_p.h b/src/client/qwaylandinputdevice_p.h
index d41d885f3..fce6e74cf 100644
--- a/src/client/qwaylandinputdevice_p.h
+++ b/src/client/qwaylandinputdevice_p.h
@@ -336,6 +336,7 @@ public:
     QPointF mSurfacePos;
     QPointF mGlobalPos;
     Qt::MouseButtons mButtons = Qt::NoButton;
+    Qt::MouseButton mLastButton = Qt::NoButton;
 #if QT_CONFIG(cursor)
     wl_buffer *mCursorBuffer = nullptr;
     Qt::CursorShape mCursorShape = Qt::BitmapCursor;