Make sure windows send accessibility activated updates.

Both QWindow and QWidgetWindow should update with the
active state signal.

Change-Id: I0219f803aa0fb109765f0faa0aedb120c2a439f0
Reviewed-by: Jan-Arve Sæther <jan-arve.saether@nokia.com>

src/gui/kernel/qwindow.cpp

@@ -52,6 +52,7 @@
 
 #include "qwindow_p.h"
 #include "qguiapplication_p.h"
+#include "qaccessible.h"
 
 #include <private/qevent_p.h>
 
@@ -1427,13 +1428,25 @@ bool QWindow::event(QEvent *ev)
         keyReleaseEvent(static_cast<QKeyEvent *>(ev));
         break;
 
-    case QEvent::FocusIn:
+    case QEvent::FocusIn: {
         focusInEvent(static_cast<QFocusEvent *>(ev));
-        break;
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::State state;
+        state.active = true;
+        QAccessibleStateChangeEvent event(this, state);
+        QAccessible::updateAccessibility(&event);
+#endif
+        break; }
 
-    case QEvent::FocusOut:
+    case QEvent::FocusOut: {
         focusOutEvent(static_cast<QFocusEvent *>(ev));
-        break;
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::State state;
+        state.active = true;
+        QAccessibleStateChangeEvent event(this, state);
+        QAccessible::updateAccessibility(&event);
+#endif
+        break; }
 
 #ifndef QT_NO_WHEELEVENT
     case QEvent::Wheel:

src/widgets/accessible/qaccessiblewidget.cpp

@@ -557,6 +557,8 @@ QAccessible::State QAccessibleWidget::state() const
             state.movable = true;
         if (w->minimumSize() != w->maximumSize())
             state.sizeable = true;
+        if (w->isActiveWindow())
+            state.active = true;
     }
 
     return state;

src/widgets/kernel/qwidgetwindow_qpa.cpp

@@ -96,8 +96,14 @@ bool QWidgetWindow::event(QEvent *event)
     // these should not be sent to QWidget, the corresponding events
     // are sent by QApplicationPrivate::notifyActiveWindowChange()
     case QEvent::FocusIn:
-    case QEvent::FocusOut:
-        return false;
+    case QEvent::FocusOut: {
+#ifndef QT_NO_ACCESSIBILITY
+        QAccessible::State state;
+        state.active = true;
+        QAccessibleStateChangeEvent ev(widget(), state);
+        QAccessible::updateAccessibility(&ev);
+#endif
+        return false; }
 
     case QEvent::FocusAboutToChange:
         if (QApplicationPrivate::focus_widget) {

tests/auto/other/qaccessibility/tst_qaccessibility.cpp

@@ -777,6 +777,7 @@ void tst_QAccessibility::applicationTest()
 
 void tst_QAccessibility::mainWindowTest()
 {
+    {
     QMainWindow *mw = new QMainWindow;
     mw->resize(300, 200);
     mw->show(); // triggers layout
@@ -787,12 +788,51 @@ void tst_QAccessibility::mainWindowTest()
     QAccessibleEvent show(mw, QAccessible::ObjectShow);
     QVERIFY_EVENT(&show);
 
-    QAccessibleInterface *interface = QAccessible::queryAccessibleInterface(mw);
-    QCOMPARE(interface->text(QAccessible::Name), name);
-    QCOMPARE(interface->role(), QAccessible::Window);
-    delete interface;
+    QAccessibleInterface *iface = QAccessible::queryAccessibleInterface(mw);
+    QCOMPARE(iface->text(QAccessible::Name), name);
+    QCOMPARE(iface->role(), QAccessible::Window);
+    QVERIFY(iface->state().active);
+
+    QAccessible::State activeState;
+    activeState.active = true;
+    QAccessibleStateChangeEvent active(mw, activeState);
+    QVERIFY_EVENT(&active);
+
+    delete iface;
     delete mw;
+    }
     QTestAccessibility::clearEvents();
+
+    {
+    QWindow window;
+    window.setGeometry(80, 80, 40, 40);
+    window.show();
+    QTRY_VERIFY(QGuiApplication::focusWindow() == &window);
+
+//    We currently don't have an accessible interface for QWindow
+//    the active state is either in the QMainWindow or QQuickView
+//    QAIPtr windowIface(QAccessible::queryAccessibleInterface(&window));
+//    QVERIFY(windowIface->state().active);
+
+    QAccessible::State activeState;
+    activeState.active = true;
+    QAccessibleStateChangeEvent active(&window, activeState);
+    QVERIFY_EVENT(&active);
+
+    QWindow child;
+    child.setParent(&window);
+    child.setGeometry(10, 10, 20, 20);
+    child.show();
+
+    child.requestActivateWindow();
+    QTRY_VERIFY(QGuiApplication::focusWindow() == &child);
+
+    QAccessibleStateChangeEvent deactivate(&window, activeState);
+    QVERIFY_EVENT(&deactivate); // deactivation of parent
+
+    QAccessibleStateChangeEvent activeChild(&child, activeState);
+    QVERIFY_EVENT(&activeChild);
+    }
 }
 
 class CounterButton : public QPushButton {