QAbstractButton::setChecked() - don't update accessibility if stale

A QPointer is used as a guard for calling setChecked on a stale object.
The guard is not checked on accessibility updates.

This patch wraps the accessibility update in a guard check.

Fixes: QTBUG-112759
Pick-to: 6.5
Change-Id: Ida47c181b7968911c1805dc244b86347e7afe81b
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 6 insertions, 5 deletions

diff --git a/src/widgets/widgets/qabstractbutton.cpp b/src/widgets/widgets/qabstractbutton.cpp
index 218ec88f53..3b40ad5285 100644
--- a/src/widgets/widgets/qabstractbutton.cpp
+++ b/src/widgets/widgets/qabstractbutton.cpp
@@ -613,12 +613,13 @@ void QAbstractButton::setChecked(bool checked)
     if (guard)
         d->emitToggled(checked);
 
-
 #if QT_CONFIG(accessibility)
-    QAccessible::State s;
-    s.checked = true;
-    QAccessibleStateChangeEvent event(this, s);
-    QAccessible::updateAccessibility(&event);
+    if (guard) {
+        QAccessible::State s;
+        s.checked = true;
+        QAccessibleStateChangeEvent event(this, s);
+        QAccessible::updateAccessibility(&event);
+    }
 #endif
 }