DialogButtonBox: fix standard buttons not being translated

When calling QQmlEngine::retranslate() after component completion,
buttons in a DialogButtonBox were not being retranslated.

For now the only way to be notified of language change events
is by installing an event filter on the application, but in
the future we can use the solution to QTBUG-78141 instead.

Change-Id: Ibc435c3829945489adcbaa8a813013fe735a9c38
Fixes: QTBUG-75085
Reviewed-by: Andy Shaw <andy.shaw@qt.io>

1 files changed, 61 insertions, 0 deletions

diff --git a/tests/auto/translation/data/dialogButtonBox.qml b/tests/auto/translation/data/dialogButtonBox.qml
new file mode 100644
index 00000000..03a3ae0e
--- /dev/null
+++ b/tests/auto/translation/data/dialogButtonBox.qml
@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
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+** Alternatively, you may use this file under the terms of the BSD license
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+****************************************************************************/
+
+import QtQuick 2.13
+import QtQuick.Controls 2.13
+
+Item {
+    property Dialog dialog: Dialog {
+        width: 300
+        height: 300
+        visible: true
+        standardButtons: DialogButtonBox.Save | DialogButtonBox.Discard
+    }
+}