Prevent a crash when there is no accessible interface

Change-Id: I058b76ff9d40b75eb51f9a6b1b89032ead629aed Reviewed-by: Liang Qi <liang.qi@digia.com>
2013-12-20 09:56:01 +01:00 · 2013-12-20 09:56:01 +01:00 · d54af5d3f6
commit d54af5d3f6
parent 436270e104
1 changed files with 4 additions and 1 deletions
--- a/src/plugins/platforms/cocoa/qcocoaaccessibilityelement.mm
+++ b/src/plugins/platforms/cocoa/qcocoaaccessibilityelement.mm
@ -240,7 +240,10 @@
 // misc

 - (BOOL)accessibilityIsIgnored {
-    return QCocoaAccessible::shouldBeIgnored(QAccessible::accessibleInterface(axid));
+    QAccessibleInterface *iface = QAccessible::accessibleInterface(axid);
+    if (!iface || !iface->isValid())
+        return true;
+    return QCocoaAccessible::shouldBeIgnored(iface);
 }

 - (id)accessibilityHitTest:(NSPoint)point {