1 files changed, 24 insertions, 3 deletions
diff --git a/src/platformsupport/eglconvenience/qeglplatformcursor.cpp b/src/platformsupport/eglconvenience/qeglplatformcursor.cpp
index 70e7c4e4db..e99581183e 100644
--- a/src/platformsupport/eglconvenience/qeglplatformcursor.cpp
+++ b/src/platformsupport/eglconvenience/qeglplatformcursor.cpp
@@ -69,7 +69,8 @@ QEGLPlatformCursor::QEGLPlatformCursor(QPlatformScreen *screen)
       m_vertexCoordEntry(0),
       m_textureCoordEntry(0),
       m_textureEntry(0),
-      m_deviceListener(0)
+      m_deviceListener(0),
+      m_updater(screen)
 {
     QByteArray hideCursorVal = qgetenv("QT_QPA_EGLFS_HIDECURSOR");
     if (!hideCursorVal.isEmpty())
@@ -270,12 +271,32 @@ bool QEGLPlatformCursor::setCurrentCursor(QCursor *cursor)
 }
 #endif
 
-void QEGLPlatformCursor::update(const QRegion &rgn)
+void QEGLPlatformCursorUpdater::update(const QPoint &pos, const QRegion &rgn)
 {
-    QWindowSystemInterface::handleExposeEvent(m_screen->topLevelAt(m_cursor.pos), rgn);
+    m_active = false;
+    QWindowSystemInterface::handleExposeEvent(m_screen->topLevelAt(pos), rgn);
     QWindowSystemInterface::flushWindowSystemEvents();
 }
 
+void QEGLPlatformCursorUpdater::scheduleUpdate(const QPoint &pos, const QRegion &rgn)
+{
+    if (m_active)
+        return;
+
+    m_active = true;
+
+    // Must not flush the window system events directly from here since we are likely to
+    // be a called directly from QGuiApplication's processMouseEvents. Flushing events
+    // could cause reentering by dispatching more queued mouse events.
+    QMetaObject::invokeMethod(this, "update", Qt::QueuedConnection,
+                              Q_ARG(QPoint, pos), Q_ARG(QRegion, rgn));
+}
+
+void QEGLPlatformCursor::update(const QRegion &rgn)
+{
+    m_updater.scheduleUpdate(m_cursor.pos, rgn);
+}
+
 QRect QEGLPlatformCursor::cursorRect() const
 {
     return QRect(m_cursor.pos - m_cursor.hotSpot, m_cursor.size);