1 files changed, 42 insertions, 0 deletions
diff --git a/src/gui/kernel/qplatformdialoghelper.cpp b/src/gui/kernel/qplatformdialoghelper.cpp
index fe5db27117..5ddd718e69 100644
--- a/src/gui/kernel/qplatformdialoghelper.cpp
+++ b/src/gui/kernel/qplatformdialoghelper.cpp
@@ -693,6 +693,48 @@ QMessageDialogOptions::StandardButtons QMessageDialogOptions::standardButtons()
     return d->buttons;
 }
 
+QMessageDialogOptions::ButtonRole QMessageDialogOptions::buttonRole(QMessageDialogOptions::StandardButton button)
+{
+    switch (button) {
+    case Ok:
+    case Save:
+    case Open:
+    case SaveAll:
+    case Retry:
+    case Ignore:
+        return AcceptRole;
+
+    case Cancel:
+    case Close:
+    case Abort:
+        return RejectRole;
+
+    case Discard:
+        return DestructiveRole;
+
+    case Help:
+        return HelpRole;
+
+    case Apply:
+        return ApplyRole;
+
+    case Yes:
+    case YesToAll:
+        return YesRole;
+
+    case No:
+    case NoToAll:
+        return NoRole;
+
+    case RestoreDefaults:
+    case Reset:
+        return ResetRole;
+
+    default:
+        break;
+    }
+    return InvalidRole;
+}
 
 /*!
     \class QPlatformMessageDialogHelper