Fixed a crash with input methods

The inputContext's focusWidget was not reset when disabling input
methods.
Thanks to Benjamin P.

Task-number: 257832
Reviewed-by: Denis

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/auto/qwidget/tst_qwidget.cpp b/tests/auto/qwidget/tst_qwidget.cpp
index 7b68732222..1db6eb26df 100644
--- a/tests/auto/qwidget/tst_qwidget.cpp
+++ b/tests/auto/qwidget/tst_qwidget.cpp
@@ -350,6 +350,7 @@ private slots:
 #endif
     void updateOnDestroyedSignal();
     void toplevelLineEditFocus();
+    void inputFocus_task257832();
 
 private:
     bool ensureScreenSize(int width, int height);
@@ -8965,5 +8966,19 @@ void tst_QWidget::toplevelLineEditFocus()
     QCOMPARE(QApplication::focusWidget(), &w);
 }
 
+void tst_QWidget::inputFocus_task257832()
+{
+      QLineEdit *widget = new QLineEdit;
+      QInputContext *context = widget->inputContext();
+      if (!context)
+            QSKIP("No input context", SkipSingle);
+      widget->setFocus();
+      context->setFocusWidget(widget);
+      QCOMPARE(context->focusWidget(), widget);
+      widget->setReadOnly(true);
+      QVERIFY(!context->focusWidget());
+      delete widget;
+}
+
 QTEST_MAIN(tst_QWidget)
 #include "tst_qwidget.moc"