QWidgetWindow: Forward incoming events with their original spontaneous state

The events may come from QPA, as spontaneous events, or from other parts
of Qt, as non-spontaneous events. We should keep the state of the original
event.

Introduces QCoreApplication::forwardEvent() as a wrapper around the
opaquely named notifyInternal2. Ideally this would be the behavior of
sendEvent, with an enum argument to override the flag, but that ship
has sailed.

Change-Id: Ib0209f2b99744bd10590c63239ee7a97b60be4fd
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 39e7c71a9c..a5bd2513b6 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -1019,6 +1019,21 @@ bool QCoreApplication::notifyInternal2(QObject *receiver, QEvent *event)
 }
 
 /*!
+    \internal
+    \since 5.10
+
+    Forwards the \a event to the \a receiver, using the spontaneous
+    state of the \a originatingEvent if specified.
+*/
+bool QCoreApplication::forwardEvent(QObject *receiver, QEvent *event, QEvent *originatingEvent)
+{
+    if (event && originatingEvent)
+        event->spont = originatingEvent->spont;
+
+    return notifyInternal2(receiver, event);
+}
+
+/*!
   Sends \a event to \a receiver: \a {receiver}->event(\a event).
   Returns the value that is returned from the receiver's event
   handler. Note that this function is called for all events sent to