Update the input method sensitivity in case of complex widgets in QGraphicsProxyWidget.

In case of a complex widget embedded in a proxy, we need to update the
input method acceptance whenever the focus changes inside the proxy.

Task-number:QTBUG-8847
Reviewed-by:janarve

2 files changed, 21 insertions, 0 deletions

diff --git a/src/gui/kernel/qwidget.cpp b/src/gui/kernel/qwidget.cpp
index 20d1d30..60f38f2 100644
--- a/src/gui/kernel/qwidget.cpp
+++ b/src/gui/kernel/qwidget.cpp
@@ -6232,6 +6232,12 @@ void QWidget::setFocus(Qt::FocusReason reason)
                         QApplication::sendEvent(that->style(), &event);
                 }
                 if (!isHidden()) {
+#ifndef QT_NO_GRAPHICSVIEW
+                    // Update proxy state
+                    if (QWExtra *topData = window()->d_func()->extra)
+                        if (topData->proxyWidget && topData->proxyWidget->hasFocus())
+                            topData->proxyWidget->d_func()->updateProxyInputMethodAcceptanceFromWidget();
+#endif
                     // Send event to self
                     QFocusEvent event(QEvent::FocusIn, reason);
                     QPointer<QWidget> that = f;
diff --git a/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp b/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
index d5f63d3..6cea834 100644
--- a/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
+++ b/tests/auto/qgraphicsproxywidget/tst_qgraphicsproxywidget.cpp
@@ -3436,6 +3436,21 @@ void tst_QGraphicsProxyWidget::inputMethod()
         qApp->sendEvent(proxy, &event);
         QCOMPARE(lineEdit->inputMethodEvents, i);
     }
+
+    scene.clear();
+    QGraphicsView view(&scene);
+    QWidget *w = new QWidget;
+    w->setLayout(new QVBoxLayout(w));
+    QLineEdit *lineEdit = new QLineEdit;
+    lineEdit->setEchoMode(QLineEdit::Password);
+    w->layout()->addWidget(lineEdit);
+    lineEdit->setAttribute(Qt::WA_InputMethodEnabled, true);
+    QGraphicsProxyWidget *proxy = scene.addWidget(w);
+    view.show();
+    QTest::qWaitForWindowShown(&view);
+    QTRY_VERIFY(!(proxy->flags() & QGraphicsItem::ItemAcceptsInputMethod));
+    lineEdit->setFocus();
+    QVERIFY((proxy->flags() & QGraphicsItem::ItemAcceptsInputMethod));
 }
 
 void tst_QGraphicsProxyWidget::clickFocus()