Revert "Windows QPA: Add support to UiaRaiseNotificationEvent()"

This reverts commit 566def740ec58e842e6bb37177f80e20aebaa245.

The fix had some unwanted side-effects when the
QAccessibleValueChangeEvent carried a value of type string. Only
QComboBox uses QAccessibleValueChangeEvent in such a way.
The consequence of the reverted patch was that it broke QComboBox
so that the screen reader would read aloud the value change event
regardless of the visibility or focus state of the QComboBox. (Thus, if
you e.g. changed the QComboBox::currentIndex on a *hidden* combo box,
the screen reader would still read aloud the event)
This is also the root cause of what is described in QTBUG-93763.

Also, due to the usage of NotificationProcessing_ImportantMostRecent
the screen reader would treat it as such an important event that it
would abort whatever it was currently speaking.

In addition, the reverted change didn't fix any bugs and it failed to
implement the suggested behavior in a correct way (as was described in
QTBUG-75003 - albeit properly described after the change was merged).
QTBUG-75003 has already been reopened due to this, and the change can
therefore be reverted quite risk-free.

Task-number: QTBUG-75003
Task-number: QTBUG-93763
Pick-to: 6.6 6.5 6.2 5.15
Change-Id: Ib91872adc563c31534fe2b30fd9c447bfcca6b40
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

1 files changed, 0 insertions, 16 deletions

diff --git a/src/gui/accessible/windows/apisupport/uiatypes_p.h b/src/gui/accessible/windows/apisupport/uiatypes_p.h
index 465bd07a07..ebee2f34ad 100644
--- a/src/gui/accessible/windows/apisupport/uiatypes_p.h
+++ b/src/gui/accessible/windows/apisupport/uiatypes_p.h
@@ -126,22 +126,6 @@ enum ExpandCollapseState {
     ExpandCollapseState_LeafNode          = 3
 };
 
-enum NotificationKind {
-    NotificationKind_ItemAdded       = 0,
-    NotificationKind_ItemRemoved     = 1,
-    NotificationKind_ActionCompleted = 2,
-    NotificationKind_ActionAborted   = 3,
-    NotificationKind_Other           = 4
-};
-
-enum NotificationProcessing {
-    NotificationProcessing_ImportantAll          = 0,
-    NotificationProcessing_ImportantMostRecent   = 1,
-    NotificationProcessing_All                   = 2,
-    NotificationProcessing_MostRecent            = 3,
-    NotificationProcessing_CurrentThenMostRecent = 4
-};
-
 struct UiaRect {
     double left;
     double top;