Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 214 insertions, 0 deletions

diff --git a/vcl/osx/documentfocuslistener.cxx b/vcl/osx/documentfocuslistener.cxx
new file mode 100644
index 000000000..494a3a945
--- /dev/null
+++ b/vcl/osx/documentfocuslistener.cxx
@@ -0,0 +1,214 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "documentfocuslistener.hxx"
+
+#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <sal/log.hxx>
+
+using namespace ::com::sun::star::accessibility;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::uno;
+
+DocumentFocusListener::DocumentFocusListener(AquaA11yFocusTracker& rTracker) :
+    m_aFocusTracker(rTracker)
+{
+}
+
+void SAL_CALL
+DocumentFocusListener::disposing( const EventObject& aEvent )
+{
+    // Unref the object here, but do not remove as listener since the object
+    // might no longer be in a state that safely allows this.
+    if( aEvent.Source.is() )
+        m_aRefList.erase(aEvent.Source);
+}
+
+void SAL_CALL
+DocumentFocusListener::notifyEvent( const AccessibleEventObject& aEvent )
+{
+    try {
+        switch( aEvent.EventId )
+        {
+            case AccessibleEventId::STATE_CHANGED:
+            {
+                sal_Int16 nState = AccessibleStateType::INVALID;
+                aEvent.NewValue >>= nState;
+
+                if( AccessibleStateType::FOCUSED == nState )
+                    m_aFocusTracker.setFocusedObject( getAccessible(aEvent) );
+            }
+            break;
+
+            case AccessibleEventId::CHILD:
+            {
+                Reference< XAccessible > xChild;
+                if( (aEvent.OldValue >>= xChild) && xChild.is() )
+                    detachRecursive(xChild);
+
+                if( (aEvent.NewValue >>= xChild) && xChild.is() )
+                    attachRecursive(xChild);
+            }
+            break;
+
+            case AccessibleEventId::INVALIDATE_ALL_CHILDREN:
+            {
+                Reference< XAccessible > xAccessible( getAccessible(aEvent) );
+                detachRecursive(xAccessible);
+                attachRecursive(xAccessible);
+                SAL_INFO("vcl", "Invalidate all children called" );
+            }
+            break;
+
+            default:
+                break;
+        }
+    }
+    catch (const IndexOutOfBoundsException&)
+    {
+        SAL_WARN("vcl", "Focused object has invalid index in parent");
+    }
+}
+
+Reference< XAccessible > DocumentFocusListener::getAccessible(const EventObject& aEvent )
+{
+    Reference< XAccessible > xAccessible(aEvent.Source, UNO_QUERY);
+
+    if( xAccessible.is() )
+        return xAccessible;
+
+    Reference< XAccessibleContext > xContext(aEvent.Source, UNO_QUERY);
+
+    if( xContext.is() )
+    {
+        Reference< XAccessible > xParent( xContext->getAccessibleParent() );
+        if( xParent.is() )
+        {
+            Reference< XAccessibleContext > xParentContext( xParent->getAccessibleContext() );
+            if( xParentContext.is() )
+            {
+                return xParentContext->getAccessibleChild( xContext->getAccessibleIndexInParent() );
+            }
+        }
+    }
+
+    return Reference< XAccessible >();
+}
+
+void DocumentFocusListener::attachRecursive(const Reference< XAccessible >& xAccessible)
+{
+    Reference< XAccessibleContext > xContext = xAccessible->getAccessibleContext();
+
+    if( xContext.is() )
+        attachRecursive(xAccessible, xContext);
+}
+
+void DocumentFocusListener::attachRecursive(
+    const Reference< XAccessible >& xAccessible,
+    const Reference< XAccessibleContext >& xContext
+)
+{
+    if( xContext.is() )
+    {
+        Reference< XAccessibleStateSet > xStateSet = xContext->getAccessibleStateSet();
+
+        if( xStateSet.is() )
+            attachRecursive(xAccessible, xContext, xStateSet);
+    }
+}
+
+void DocumentFocusListener::attachRecursive(
+    const Reference< XAccessible >& xAccessible,
+    const Reference< XAccessibleContext >& xContext,
+    const Reference< XAccessibleStateSet >& xStateSet
+)
+{
+    if( xStateSet->contains(AccessibleStateType::FOCUSED ) )
+        m_aFocusTracker.setFocusedObject( xAccessible );
+
+    Reference< XAccessibleEventBroadcaster > xBroadcaster(xContext, UNO_QUERY);
+
+    // If not already done, add the broadcaster to the list and attach as listener.
+    if( xBroadcaster.is() && m_aRefList.insert(xBroadcaster).second )
+    {
+        xBroadcaster->addAccessibleEventListener(static_cast< XAccessibleEventListener *>(this));
+
+        if( ! xStateSet->contains(AccessibleStateType::MANAGES_DESCENDANTS ) )
+        {
+            sal_Int32 n, nmax = xContext->getAccessibleChildCount();
+            for( n = 0; n < nmax; n++ )
+            {
+                Reference< XAccessible > xChild( xContext->getAccessibleChild( n ) );
+
+                if( xChild.is() )
+                    attachRecursive(xChild);
+            }
+        }
+    }
+}
+
+void DocumentFocusListener::detachRecursive(const Reference< XAccessible >& xAccessible)
+{
+    Reference< XAccessibleContext > xContext = xAccessible->getAccessibleContext();
+
+    if( xContext.is() )
+        detachRecursive(xAccessible, xContext);
+}
+
+void DocumentFocusListener::detachRecursive(
+    const Reference< XAccessible >& xAccessible,
+    const Reference< XAccessibleContext >& xContext
+)
+{
+    Reference< XAccessibleStateSet > xStateSet = xContext->getAccessibleStateSet();
+
+    if( xStateSet.is() )
+        detachRecursive(xAccessible, xContext, xStateSet);
+}
+
+void DocumentFocusListener::detachRecursive(
+    const Reference< XAccessible >&,
+    const Reference< XAccessibleContext >& xContext,
+    const Reference< XAccessibleStateSet >& xStateSet
+)
+{
+    Reference< XAccessibleEventBroadcaster > xBroadcaster(xContext, UNO_QUERY);
+
+    if( xBroadcaster.is() && 0 < m_aRefList.erase(xBroadcaster) )
+    {
+        xBroadcaster->removeAccessibleEventListener(static_cast< XAccessibleEventListener *>(this));
+
+        if( ! xStateSet->contains(AccessibleStateType::MANAGES_DESCENDANTS ) )
+        {
+            sal_Int32 n, nmax = xContext->getAccessibleChildCount();
+            for( n = 0; n < nmax; n++ )
+            {
+                Reference< XAccessible > xChild( xContext->getAccessibleChild( n ) );
+
+                if( xChild.is() )
+                    detachRecursive(xChild);
+            }
+        }
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */