Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

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

1 files changed, 358 insertions, 0 deletions

diff --git a/chart2/source/controller/accessibility/AccessibleChartView.cxx b/chart2/source/controller/accessibility/AccessibleChartView.cxx
new file mode 100644
index 000000000..0738f52ab
--- /dev/null
+++ b/chart2/source/controller/accessibility/AccessibleChartView.cxx
@@ -0,0 +1,358 @@
+/* -*- 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 <AccessibleChartView.hxx>
+#include <chartview/ExplicitValueProvider.hxx>
+#include <ObjectHierarchy.hxx>
+#include <ObjectIdentifier.hxx>
+#include <ResId.hxx>
+#include <strings.hrc>
+#include "AccessibleViewForwarder.hxx"
+
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/view/XSelectionSupplier.hpp>
+#include <com/sun/star/chart2/XChartDocument.hpp>
+
+#include <comphelper/servicehelper.hxx>
+
+#include <rtl/ustring.hxx>
+#include <vcl/window.hxx>
+#include <toolkit/helper/vclunohelper.hxx>
+#include <vcl/svapp.hxx>
+#include <osl/mutex.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+using ::com::sun::star::uno::Sequence;
+using ::com::sun::star::uno::Reference;
+using ::com::sun::star::uno::WeakReference;
+using ::com::sun::star::uno::Any;
+using osl::MutexGuard;
+
+namespace chart
+{
+
+AccessibleChartView::AccessibleChartView(SdrView* pView ) :
+        impl::AccessibleChartView_Base(
+            AccessibleElementInfo(), // empty for now
+            true, // has children
+            true  // always transparent
+            ),
+        m_pSdrView( pView )
+{
+    AddState( AccessibleStateType::OPAQUE );
+}
+
+AccessibleChartView::~AccessibleChartView()
+{
+}
+
+awt::Rectangle AccessibleChartView::GetWindowPosSize() const
+{
+    Reference< awt::XWindow > xWindow( GetInfo().m_xWindow );
+    if( ! xWindow.is())
+        return awt::Rectangle();
+
+    awt::Rectangle aBBox( xWindow->getPosSize() );
+
+    VclPtr<vcl::Window> pWindow( VCLUnoHelper::GetWindow( GetInfo().m_xWindow ));
+    if( pWindow )
+    {
+        SolarMutexGuard aSolarGuard;
+        Point aVCLPoint( pWindow->OutputToAbsoluteScreenPixel( Point( 0, 0 ) ));
+        aBBox.X = aVCLPoint.getX();
+        aBBox.Y = aVCLPoint.getY();
+    }
+
+    return aBBox;
+}
+
+awt::Point AccessibleChartView::GetUpperLeftOnScreen() const
+{
+    awt::Point aParentPosition;
+
+    awt::Rectangle aBBox( GetWindowPosSize() );
+    aParentPosition.X = aBBox.X;
+    aParentPosition.Y = aBBox.Y;
+
+    return aParentPosition;
+}
+
+// ________ XAccessibleContext ________
+OUString SAL_CALL AccessibleChartView::getAccessibleName()
+{
+    return SchResId(STR_OBJECT_DIAGRAM);
+}
+
+OUString SAL_CALL AccessibleChartView::getAccessibleDescription()
+{
+    return getAccessibleName();
+}
+
+Reference< XAccessible > SAL_CALL AccessibleChartView::getAccessibleParent()
+{
+    return Reference< XAccessible >( m_xParent );
+}
+
+sal_Int32 SAL_CALL AccessibleChartView::getAccessibleIndexInParent()
+{
+    // the document is always the only child of the window
+    return 0;
+}
+
+sal_Int16 SAL_CALL AccessibleChartView::getAccessibleRole()
+{
+    return AccessibleRole::DOCUMENT;
+}
+
+// ________ XAccessibleComponent ________
+awt::Rectangle SAL_CALL AccessibleChartView::getBounds()
+{
+    awt::Rectangle aResult( GetWindowPosSize());
+    Reference< XAccessible > xParent( m_xParent );
+    if( xParent.is())
+    {
+        Reference< XAccessibleComponent > xContext( xParent->getAccessibleContext(), uno::UNO_QUERY );
+        if( xContext.is())
+        {
+            awt::Point aParentPosition = xContext->getLocationOnScreen();
+            aResult.X -= aParentPosition.X;
+            aResult.Y -= aParentPosition.Y;
+        }
+    }
+    return aResult;
+}
+
+awt::Point SAL_CALL AccessibleChartView::getLocationOnScreen()
+{
+    awt::Rectangle aBounds( getBounds());
+    awt::Point aResult;
+    Reference< XAccessible > xParent( m_xParent );
+    if( xParent.is())
+    {
+        Reference< XAccessibleComponent > xAccComp(
+            xParent->getAccessibleContext(), uno::UNO_QUERY );
+        aResult = xAccComp->getLocationOnScreen();
+        aResult.X += aBounds.X;
+        aResult.Y += aBounds.Y;
+    }
+    return aResult;
+}
+
+// lang::XInitialization
+
+void SAL_CALL AccessibleChartView::initialize( const Sequence< Any >& rArguments )
+{
+    //0: view::XSelectionSupplier offers notifications for selection changes and access to the selection itself
+    //1: frame::XModel representing the chart model - offers access to object data
+    //2: lang::XInterface representing the normal chart view - offers access to some extra object data
+
+    //all arguments are only valid until next initialization
+    bool bChanged = false;
+    bool bOldInvalid = false;
+    bool bNewInvalid = false;
+
+    Reference< view::XSelectionSupplier > xSelectionSupplier;
+    Reference< frame::XModel > xChartModel;
+    Reference< uno::XInterface > xChartView;
+    Reference< XAccessible > xParent;
+    Reference< awt::XWindow > xWindow;
+    {
+        MutexGuard aGuard( m_aMutex);
+        xSelectionSupplier.set( m_xSelectionSupplier );
+        xChartModel.set( m_xChartModel );
+        xChartView.set( m_xChartView );
+        xParent.set( m_xParent );
+        xWindow.set( m_xWindow );
+    }
+
+    if( !xSelectionSupplier.is() || !xChartModel.is() || !xChartView.is() )
+    {
+        bOldInvalid = true;
+    }
+
+    if( rArguments.getLength() > 1 )
+    {
+        Reference< frame::XModel > xNewChartModel;
+        rArguments[1] >>= xNewChartModel;
+        if( xNewChartModel != xChartModel )
+        {
+            xChartModel = xNewChartModel;
+            bChanged = true;
+        }
+    }
+    else if( xChartModel.is() )
+    {
+        bChanged = true;
+        xChartModel = nullptr;
+    }
+
+    if( rArguments.getLength() > 2 )
+    {
+        Reference< uno::XInterface > xNewChartView;
+        rArguments[2] >>= xNewChartView;
+        if( xNewChartView != xChartView )
+        {
+            xChartView = xNewChartView;
+            bChanged = true;
+        }
+    }
+    else if( xChartView.is() )
+    {
+        bChanged = true;
+        xChartView = nullptr;
+    }
+
+    if( rArguments.getLength() > 3 )
+    {
+        Reference< XAccessible > xNewParent;
+        rArguments[3] >>= xNewParent;
+        if( xNewParent != xParent )
+        {
+            xParent = xNewParent;
+            bChanged = true;
+        }
+    }
+
+    if( rArguments.getLength() > 4 )
+    {
+        Reference< awt::XWindow > xNewWindow;
+        rArguments[4] >>= xNewWindow;
+        if( xNewWindow != xWindow )
+        {
+            xWindow.set( xNewWindow );
+            bChanged = true;
+        }
+    }
+
+    if( rArguments.hasElements() && xChartModel.is() && xChartView.is() )
+    {
+        Reference< view::XSelectionSupplier > xNewSelectionSupplier;
+        rArguments[0] >>= xNewSelectionSupplier;
+        if(xSelectionSupplier!=xNewSelectionSupplier)
+        {
+            bChanged = true;
+            if(xSelectionSupplier.is())
+                xSelectionSupplier->removeSelectionChangeListener(this);
+            if(xNewSelectionSupplier.is())
+                xNewSelectionSupplier->addSelectionChangeListener(this);
+            xSelectionSupplier = xNewSelectionSupplier;
+        }
+    }
+    else if( xSelectionSupplier.is() )
+    {
+        bChanged = true;
+        xSelectionSupplier->removeSelectionChangeListener(this);
+        xSelectionSupplier = nullptr;
+    }
+
+    if( !xSelectionSupplier.is() || !xChartModel.is() || !xChartView.is() )
+    {
+        if(xSelectionSupplier.is())
+            xSelectionSupplier->removeSelectionChangeListener(this);
+        xSelectionSupplier = nullptr;
+        xChartModel.clear();
+        xChartView.clear();
+        xParent.clear();
+        xWindow.clear();
+
+        bNewInvalid = true;
+    }
+
+    {
+        MutexGuard aGuard( m_aMutex);
+        m_xSelectionSupplier = WeakReference< view::XSelectionSupplier >(xSelectionSupplier);
+        m_xChartModel = WeakReference< frame::XModel >(xChartModel);
+        m_xChartView = WeakReference< uno::XInterface >(xChartView);
+        m_xParent = WeakReference< XAccessible >(xParent);
+        m_xWindow = WeakReference< awt::XWindow >(xWindow);
+    }
+
+    if( bOldInvalid && bNewInvalid )
+        bChanged = false;
+
+    if( !bChanged )
+        return;
+
+    {
+        //before notification we prepare for creation of new context
+        //the old context will be deleted after notification than
+        MutexGuard aGuard( m_aMutex);
+        Reference< chart2::XChartDocument > xChartDoc( xChartModel, uno::UNO_QUERY );
+        if( xChartDoc.is())
+            m_spObjectHierarchy =
+                std::make_shared<ObjectHierarchy>( xChartDoc, comphelper::getUnoTunnelImplementation<ExplicitValueProvider>(m_xChartView) );
+        else
+            m_spObjectHierarchy.reset();
+    }
+
+    {
+        AccessibleElementInfo aAccInfo;
+        aAccInfo.m_aOID = ObjectIdentifier("ROOT");
+        aAccInfo.m_xChartDocument = uno::WeakReference< chart2::XChartDocument >(
+            uno::Reference< chart2::XChartDocument >( m_xChartModel.get(), uno::UNO_QUERY ));
+        aAccInfo.m_xSelectionSupplier = m_xSelectionSupplier;
+        aAccInfo.m_xView = m_xChartView;
+        aAccInfo.m_xWindow = m_xWindow;
+        aAccInfo.m_pParent = nullptr;
+        aAccInfo.m_spObjectHierarchy = m_spObjectHierarchy;
+        aAccInfo.m_pSdrView = m_pSdrView;
+        VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow( m_xWindow );
+        m_pViewForwarder.reset( new AccessibleViewForwarder( this, pWindow ) );
+        aAccInfo.m_pViewForwarder = m_pViewForwarder.get();
+        // broadcasts an INVALIDATE_ALL_CHILDREN event globally
+        SetInfo( aAccInfo );
+    }
+}
+
+// view::XSelectionChangeListener
+
+void SAL_CALL AccessibleChartView::selectionChanged( const lang::EventObject& /*rEvent*/ )
+{
+    Reference< view::XSelectionSupplier > xSelectionSupplier;
+    {
+        MutexGuard aGuard( m_aMutex);
+        xSelectionSupplier.set(m_xSelectionSupplier);
+    }
+
+    if( !xSelectionSupplier.is() )
+        return;
+
+    ObjectIdentifier aSelectedOID( xSelectionSupplier->getSelection() );
+    if ( m_aCurrentSelectionOID.isValid() )
+    {
+        NotifyEvent( EventType::LOST_SELECTION, m_aCurrentSelectionOID );
+    }
+    if( aSelectedOID.isValid() )
+    {
+        NotifyEvent( EventType::GOT_SELECTION, aSelectedOID );
+    }
+    m_aCurrentSelectionOID = aSelectedOID;
+}
+
+// XEventListener
+void SAL_CALL AccessibleChartView::disposing( const lang::EventObject& /*Source*/ )
+{
+}
+
+} //namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */