Forward unhandled scroll events

Fixes a regression in webengine stealing all wheel events.

Fixes: QTBUG-81322
Change-Id: I0176627f3e13d97f55162f70fc7a969f98f4f444
Reviewed-by: Jüri Valdmann <juri.valdmann@qt.io>

1 files changed, 6 insertions, 1 deletions

diff --git a/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp
index fdd6d1c4f..66b4cffea 100644
--- a/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp
+++ b/src/webenginewidgets/render_widget_host_view_qt_delegate_widget.cpp
@@ -474,11 +474,16 @@ bool RenderWidgetHostViewQtDelegateWidget::event(QEvent *event)
 
     if (!handled)
         return QQuickWidget::event(event);
-    // Most events are accepted by default, but tablet events are not:
     event->accept();
     return true;
 }
 
+void RenderWidgetHostViewQtDelegateWidget::unhandledWheelEvent(QWheelEvent *ev)
+{
+    if (QWidget *p = parentWidget())
+        qApp->sendEvent(p, ev);
+}
+
 void RenderWidgetHostViewQtDelegateWidget::onWindowPosChanged()
 {
     m_client->visualPropertiesChanged();