Respond with a sound for certain message boxes on windows

This was a regression (it worked in 4.8) that was probably introduced
by the refactoring of the accessibility framework in Qt 5.

Now, QPlatformAccessibility::notifyAccessibilityUpdate() is called
regardless of isActive(), so its the responsibility of each
implementation of notifyAccessibilityUpdate() to check for isActive()
where it matters.

Task-number: QTBUG-33303
Change-Id: I0d18f8c1890ef679460408b05e704712b886bf7c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Andy Shaw <andy.shaw@theqtcompany.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoaaccessibility.mm b/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
index 4e901ba015..723c341e59 100644
--- a/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
+++ b/src/plugins/platforms/cocoa/qcocoaaccessibility.mm
@@ -51,6 +51,8 @@ QCocoaAccessibility::~QCocoaAccessibility()
 
 void QCocoaAccessibility::notifyAccessibilityUpdate(QAccessibleEvent *event)
 {
+    if (!isActive() || !event->accessibleInterface())
+        return;
     QMacAccessibilityElement *element = [QMacAccessibilityElement elementWithId: event->uniqueId()];
     if (!element) {
         qWarning() << "QCocoaAccessibility::notifyAccessibilityUpdate: invalid element";