xref: /aoo42x/main/sd/source/ui/accessibility/AccessibleDocumentViewBase.cxx (revision 2d19362e)

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 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sd.hxx"
#include "AccessibleDocumentViewBase.hxx"
#include <com/sun/star/drawing/XDrawPage.hpp>
#include <com/sun/star/drawing/XDrawView.hpp>
#include <com/sun/star/drawing/XShapes.hpp>
#include <com/sun/star/container/XChild.hpp>
#include <com/sun/star/frame/XController.hpp>
#include <com/sun/star/frame/XFrame.hpp>
#include <com/sun/star/document/XEventBroadcaster.hpp>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
#include <com/sun/star/lang/XMultiServiceFactory.hpp>
#include <rtl/ustring.h>
#include<sfx2/viewfrm.hxx>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <sfx2/objsh.hxx>
#include <svx/AccessibleShape.hxx>

#include <svx/svdobj.hxx>
#include <svx/svdmodel.hxx>
#include <svx/unoapi.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include "Window.hxx"
#include <vcl/svapp.hxx>
#include "OutlineViewShell.hxx"

#include "SlideViewShell.hxx"

#include <svx/svdlayer.hxx>
#include <editeng/editobj.hxx>
#include "LayerTabBar.hxx"
#include <svtools/colorcfg.hxx>
#include "ViewShell.hxx"
#include "View.hxx"
#include <memory>

using ::rtl::OUString;
using namespace ::com::sun::star;
using namespace	::com::sun::star::accessibility;
using ::com::sun::star::uno::Reference;

class SfxViewFrame;

namespace accessibility {

//=====  internal  ============================================================
AccessibleDocumentViewBase::AccessibleDocumentViewBase (
    ::sd::Window* pSdWindow,
    ::sd::ViewShell* pViewShell,
    const uno::Reference<frame::XController>& rxController,
    const uno::Reference<XAccessible>& rxParent)
    : AccessibleContextBase (rxParent, AccessibleRole::DOCUMENT),
      mpWindow (pSdWindow),
      mxController (rxController),
      mxModel (NULL),
      maViewForwarder (
        static_cast<SdrPaintView*>(pViewShell->GetView()),
        *static_cast<OutputDevice*>(pSdWindow))
{
    if (mxController.is())
        mxModel = mxController->getModel();

    // Fill the shape tree info.
    maShapeTreeInfo.SetModelBroadcaster (
        uno::Reference<document::XEventBroadcaster>(
            mxModel, uno::UNO_QUERY));
    maShapeTreeInfo.SetController (mxController);
    maShapeTreeInfo.SetSdrView (pViewShell->GetView());
    maShapeTreeInfo.SetWindow (pSdWindow);
    maShapeTreeInfo.SetViewForwarder (&maViewForwarder);

    mxWindow = ::VCLUnoHelper::GetInterface (pSdWindow);
	mpViewShell = pViewShell;
}




AccessibleDocumentViewBase::~AccessibleDocumentViewBase (void)
{
    // At this place we should be disposed.  You may want to add a
    // corresponding assertion into the destructor of a derived class.
}




void AccessibleDocumentViewBase::Init (void)
{
    // Finish the initialization of the shape tree info container.
    maShapeTreeInfo.SetDocumentWindow (this);

    // Register as window listener to stay up to date with its size and
    // position.
    mxWindow->addWindowListener (this);
    // Register as focus listener to
    mxWindow->addFocusListener (this);

    // Determine the list of shapes on the current page.
    uno::Reference<drawing::XShapes> xShapeList;
    uno::Reference<drawing::XDrawView> xView (mxController, uno::UNO_QUERY);
    if (xView.is())
        xShapeList = uno::Reference<drawing::XShapes> (
            xView->getCurrentPage(), uno::UNO_QUERY);

    // Register this object as dispose event listener at the model.
	if (mxModel.is())
		mxModel->addEventListener (
            static_cast<awt::XWindowListener*>(this));

    // Register as property change listener at the controller.
    uno::Reference<beans::XPropertySet> xSet (mxController, uno::UNO_QUERY);
    if (xSet.is())
        xSet->addPropertyChangeListener (
            OUString (RTL_CONSTASCII_USTRINGPARAM("")),
            static_cast<beans::XPropertyChangeListener*>(this));

    // Register this object as dispose event listener at the controller.
    if (mxController.is())
        mxController->addEventListener (
            static_cast<awt::XWindowListener*>(this));

    // Register at VCL Window to be informed of activated and deactivated
    // OLE objects.
    Window* pWindow = maShapeTreeInfo.GetWindow();
    if (pWindow != NULL)
    {
        maWindowLink = LINK(
            this, AccessibleDocumentViewBase, WindowChildEventListener);

        pWindow->AddChildEventListener (maWindowLink);

        sal_uInt16 nCount = pWindow->GetChildCount();
        for (sal_uInt16 i=0; i<nCount; i++)
        {
            Window* pChildWindow = pWindow->GetChild (i);
            if (pChildWindow &&
                (AccessibleRole::EMBEDDED_OBJECT
                    ==pChildWindow->GetAccessibleRole()))
            {
                SetAccessibleOLEObject (pChildWindow->GetAccessible());
            }
        }
    }
	SfxObjectShell* pObjShell = mpViewShell->GetViewFrame()->GetObjectShell();
	if(!pObjShell->IsReadOnly())
		SetState(AccessibleStateType::EDITABLE);
}




IMPL_LINK(AccessibleDocumentViewBase, WindowChildEventListener,
    VclSimpleEvent*, pEvent)
{
    OSL_ASSERT(pEvent!=NULL && pEvent->ISA(VclWindowEvent));
    if (pEvent!=NULL && pEvent->ISA(VclWindowEvent))
    {
        VclWindowEvent* pWindowEvent = static_cast<VclWindowEvent*>(pEvent);
        //      DBG_ASSERT( pVclEvent->GetWindow(), "Window???" );
        switch (pWindowEvent->GetId())
        {
            case VCLEVENT_OBJECT_DYING:
            {
                // Window is dying.  Unregister from VCL Window.
                // This is also attempted in the disposing() method.
                Window* pWindow = maShapeTreeInfo.GetWindow();
                Window* pDyingWindow = static_cast<Window*>(
                    pWindowEvent->GetWindow());
                if (pWindow==pDyingWindow && pWindow!=NULL && maWindowLink.IsSet())
                {
                    pWindow->RemoveChildEventListener (maWindowLink);
                    maWindowLink = Link();
                }
            }
            break;

            case VCLEVENT_WINDOW_SHOW:
            {
                // A new window has been created.  Is it an OLE object?
                Window* pChildWindow = static_cast<Window*>(
                    pWindowEvent->GetData());
                if (pChildWindow!=NULL
                    && (pChildWindow->GetAccessibleRole()
                        == AccessibleRole::EMBEDDED_OBJECT))
                {
                    SetAccessibleOLEObject (pChildWindow->GetAccessible());
                }
            }
            break;

            case VCLEVENT_WINDOW_HIDE:
            {
                // A window has been destroyed.  Has that been an OLE
                // object?
                Window* pChildWindow = static_cast<Window*>(
                    pWindowEvent->GetData());
                if (pChildWindow!=NULL
                    && (pChildWindow->GetAccessibleRole()
                        == AccessibleRole::EMBEDDED_OBJECT))
                {
                    SetAccessibleOLEObject (NULL);
                }
            }
            break;
        }
    }

    return 0;
}




//=====  IAccessibleViewForwarderListener  ====================================

void AccessibleDocumentViewBase::ViewForwarderChanged(ChangeType, const IAccessibleViewForwarder* )
{
    // Empty
}




//=====  XAccessibleContext  ==================================================

Reference<XAccessible> SAL_CALL
   	AccessibleDocumentViewBase::getAccessibleParent (void)
    throw (uno::RuntimeException)
{
    ThrowIfDisposed ();

    return AccessibleContextBase::getAccessibleParent();
}



sal_Int32 SAL_CALL
    AccessibleDocumentViewBase::getAccessibleChildCount (void)
    throw (uno::RuntimeException)
{
    ThrowIfDisposed ();

    if (mxAccessibleOLEObject.is())
        return 1;
    else
        return 0;
}




Reference<XAccessible> SAL_CALL
    AccessibleDocumentViewBase::getAccessibleChild (sal_Int32 nIndex)
    throw (uno::RuntimeException, lang::IndexOutOfBoundsException)
{
    ThrowIfDisposed ();

    ::osl::MutexGuard aGuard (maMutex);
    if (mxAccessibleOLEObject.is())
        if (nIndex == 0)
            return mxAccessibleOLEObject;

    throw lang::IndexOutOfBoundsException (
        ::rtl::OUString::createFromAscii ("no child with index ")
        + rtl::OUString::valueOf(nIndex),
		NULL);
}




//=====  XAccessibleComponent  ================================================

/** Iterate over all children and test whether the specified point lies
    within one of their bounding boxes.  Return the first child for which
    this is true.
*/
uno::Reference<XAccessible > SAL_CALL
    AccessibleDocumentViewBase::getAccessibleAtPoint (
        const awt::Point& aPoint)
    throw (uno::RuntimeException)
{
    ThrowIfDisposed ();

    ::osl::MutexGuard aGuard (maMutex);
    uno::Reference<XAccessible> xChildAtPosition;

    sal_Int32 nChildCount = getAccessibleChildCount ();
    for (sal_Int32 i=nChildCount-1; i>=0; --i)
    {
        Reference<XAccessible> xChild (getAccessibleChild (i));
        if (xChild.is())
        {
            Reference<XAccessibleComponent> xChildComponent (
                xChild->getAccessibleContext(), uno::UNO_QUERY);
            if (xChildComponent.is())
            {
                awt::Rectangle aBBox (xChildComponent->getBounds());
                if ( (aPoint.X >= aBBox.X)
                    && (aPoint.Y >= aBBox.Y)
                    && (aPoint.X < aBBox.X+aBBox.Width)
                    && (aPoint.Y < aBBox.Y+aBBox.Height) )
                {
                    xChildAtPosition = xChild;
                    break;
                }
            }
        }
    }

    // Have not found a child under the given point.  Returning empty
    // reference to indicate this.
    return xChildAtPosition;
}




awt::Rectangle SAL_CALL
    AccessibleDocumentViewBase::getBounds (void)
    throw (::com::sun::star::uno::RuntimeException)
{
    ThrowIfDisposed ();

    // Transform visible area into screen coordinates.
    ::Rectangle aVisibleArea (
        maShapeTreeInfo.GetViewForwarder()->GetVisibleArea());
    ::Point aPixelTopLeft (
        maShapeTreeInfo.GetViewForwarder()->LogicToPixel (
            aVisibleArea.TopLeft()));
    ::Point aPixelSize (
        maShapeTreeInfo.GetViewForwarder()->LogicToPixel (
            aVisibleArea.BottomRight())
        - aPixelTopLeft);

    // Prepare to subtract the parent position to transform into relative
    // coordinates.
    awt::Point aParentPosition;
    Reference<XAccessible> xParent = getAccessibleParent ();
    if (xParent.is())
    {
        Reference<XAccessibleComponent> xParentComponent (
            xParent->getAccessibleContext(), uno::UNO_QUERY);
        if (xParentComponent.is())
            aParentPosition = xParentComponent->getLocationOnScreen();
    }

    return awt::Rectangle (
        aPixelTopLeft.X() - aParentPosition.X,
        aPixelTopLeft.Y() - aParentPosition.Y,
        aPixelSize.X(),
        aPixelSize.Y());
}




awt::Point SAL_CALL
    AccessibleDocumentViewBase::getLocation (void)
    throw (uno::RuntimeException)
{
    ThrowIfDisposed ();
    awt::Rectangle aBoundingBox (getBounds());
    return awt::Point (aBoundingBox.X, aBoundingBox.Y);
}




awt::Point SAL_CALL
    AccessibleDocumentViewBase::getLocationOnScreen (void)
    throw (uno::RuntimeException)
{
    ThrowIfDisposed ();
    ::Point aLogicalPoint (maShapeTreeInfo.GetViewForwarder()->GetVisibleArea().TopLeft());
    ::Point aPixelPoint (maShapeTreeInfo.GetViewForwarder()->LogicToPixel (aLogicalPoint));
    return awt::Point (aPixelPoint.X(), aPixelPoint.Y());
}




awt::Size SAL_CALL
    AccessibleDocumentViewBase::getSize (void)
    throw (uno::RuntimeException)
{
    ThrowIfDisposed ();

    // Transform visible area into screen coordinates.
    ::Rectangle aVisibleArea (
        maShapeTreeInfo.GetViewForwarder()->GetVisibleArea());
    ::Point aPixelTopLeft (
        maShapeTreeInfo.GetViewForwarder()->LogicToPixel (
            aVisibleArea.TopLeft()));
    ::Point aPixelSize (
        maShapeTreeInfo.GetViewForwarder()->LogicToPixel (
            aVisibleArea.BottomRight())
        - aPixelTopLeft);

    return awt::Size (aPixelSize.X(), aPixelSize.Y());
}




//=====  XInterface  ==========================================================

uno::Any SAL_CALL
    AccessibleDocumentViewBase::queryInterface (const uno::Type & rType)
    throw (uno::RuntimeException)
{
    uno::Any aReturn = AccessibleContextBase::queryInterface (rType);
    if ( ! aReturn.hasValue())
        aReturn = ::cppu::queryInterface (rType,
            static_cast<XAccessibleComponent*>(this),
            static_cast<XAccessibleSelection*>(this),
            static_cast<lang::XEventListener*>(
                static_cast<awt::XWindowListener*>(this)),
            static_cast<beans::XPropertyChangeListener*>(this),
            static_cast<awt::XWindowListener*>(this),
            static_cast<awt::XFocusListener*>(this)
		   ,static_cast<XAccessibleExtendedAttributes*>(this)
		   ,static_cast<XAccessibleGetAccFlowTo*>(this)
            );
    return aReturn;
}




void SAL_CALL
    AccessibleDocumentViewBase::acquire (void)
    throw ()
{
    AccessibleContextBase::acquire ();
}




void SAL_CALL
    AccessibleDocumentViewBase::release (void)
    throw ()
{
    AccessibleContextBase::release ();
}




//=====  XServiceInfo  ========================================================

::rtl::OUString SAL_CALL
    AccessibleDocumentViewBase::getImplementationName (void)
    throw (::com::sun::star::uno::RuntimeException)
{
	return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("AccessibleDocumentViewBase"));
}




::com::sun::star::uno::Sequence< ::rtl::OUString> SAL_CALL
    AccessibleDocumentViewBase::getSupportedServiceNames (void)
    throw (::com::sun::star::uno::RuntimeException)
{
    ThrowIfDisposed ();
    return AccessibleContextBase::getSupportedServiceNames ();
}





//=====  XTypeProvider  =======================================================

::com::sun::star::uno::Sequence< ::com::sun::star::uno::Type> SAL_CALL
    AccessibleDocumentViewBase::getTypes (void)
    throw (::com::sun::star::uno::RuntimeException)
{
    ThrowIfDisposed ();

    // Get list of types from the context base implementation, ...
	uno::Sequence<uno::Type> aTypeList (AccessibleContextBase::getTypes());
    // ... get list of types from component base implementation, ...
	uno::Sequence<uno::Type> aComponentTypeList (AccessibleComponentBase::getTypes());


    // ...and add the additional type for the component, ...
    const uno::Type aLangEventListenerType =
     	::getCppuType((const uno::Reference<lang::XEventListener>*)0);
    const uno::Type aPropertyChangeListenerType =
     	::getCppuType((const uno::Reference<beans::XPropertyChangeListener>*)0);
    const uno::Type aWindowListenerType =
     	::getCppuType((const uno::Reference<awt::XWindowListener>*)0);
    const uno::Type aFocusListenerType =
     	::getCppuType((const uno::Reference<awt::XFocusListener>*)0);
    const uno::Type aEventBroadcaster =
     	::getCppuType((const uno::Reference<XAccessibleEventBroadcaster>*)0);

    // ... and merge them all into one list.
    sal_Int32 nTypeCount (aTypeList.getLength()),
        nComponentTypeCount (aComponentTypeList.getLength()),
        i;

    aTypeList.realloc (nTypeCount + nComponentTypeCount + 5);

    for (i=0; i<nComponentTypeCount; i++)
        aTypeList[nTypeCount + i] = aComponentTypeList[i];

    aTypeList[nTypeCount + i++ ] = aLangEventListenerType;
    aTypeList[nTypeCount + i++] = aPropertyChangeListenerType;
    aTypeList[nTypeCount + i++] = aWindowListenerType;
    aTypeList[nTypeCount + i++] = aFocusListenerType;
    aTypeList[nTypeCount + i++] = aEventBroadcaster;

	return aTypeList;
}




void AccessibleDocumentViewBase::impl_dispose()
{
    // Unregister from VCL Window.
    Window* pWindow = maShapeTreeInfo.GetWindow();
    if (maWindowLink.IsSet())
    {
        if (pWindow)
            pWindow->RemoveChildEventListener (maWindowLink);
        maWindowLink = Link();
    }
    else
    {
        DBG_ASSERT (pWindow, "AccessibleDocumentViewBase::disposing");
    }

    // Unregister from window.
    if (mxWindow.is())
    {
        mxWindow->removeWindowListener (this);
        mxWindow->removeFocusListener (this);
        mxWindow = NULL;
    }

    // Unregister form the model.
    if (mxModel.is())
        mxModel->removeEventListener (
            static_cast<awt::XWindowListener*>(this));

    // Unregister from the controller.
    if (mxController.is())
    {
        uno::Reference<beans::XPropertySet> xSet (mxController, uno::UNO_QUERY);
        if (xSet.is())
            xSet->removePropertyChangeListener (
                OUString (RTL_CONSTASCII_USTRINGPARAM("")),
                static_cast<beans::XPropertyChangeListener*>(this));

        mxController->removeEventListener (
            static_cast<awt::XWindowListener*>(this));
    }

    // Propagate change of controller down the shape tree.
    maShapeTreeInfo.SetControllerBroadcaster (NULL);

    // Reset the model reference.
    mxModel = NULL;
    // Reset the model reference.
    mxController = NULL;

    maShapeTreeInfo.SetDocumentWindow (NULL);
}




//=====  XEventListener  ======================================================

void SAL_CALL
    AccessibleDocumentViewBase::disposing (const lang::EventObject& rEventObject)
    throw (::com::sun::star::uno::RuntimeException)
{
    ThrowIfDisposed ();

    // Register this object as dispose event and document::XEventListener
    // listener at the model.

    if ( ! rEventObject.Source.is())
    {
        // Paranoia. Can this really happen?
    }
    else if (rEventObject.Source == mxModel || rEventObject.Source == mxController)
    {
        impl_dispose();
    }
}

//=====  XPropertyChangeListener  =============================================

void SAL_CALL AccessibleDocumentViewBase::propertyChange (const beans::PropertyChangeEvent& )
    throw (::com::sun::star::uno::RuntimeException)
{
    // Empty
}




//=====  XWindowListener  =====================================================

void SAL_CALL
    AccessibleDocumentViewBase::windowResized (const ::com::sun::star::awt::WindowEvent& )
    throw (::com::sun::star::uno::RuntimeException)
{
    if( IsDisposed() )
        return;

    ViewForwarderChanged (
        IAccessibleViewForwarderListener::VISIBLE_AREA,
        &maViewForwarder);
}




void SAL_CALL
    AccessibleDocumentViewBase::windowMoved (const ::com::sun::star::awt::WindowEvent& )
    throw (::com::sun::star::uno::RuntimeException)
{
    if( IsDisposed() )
        return;

    ViewForwarderChanged (
        IAccessibleViewForwarderListener::VISIBLE_AREA,
        &maViewForwarder);
}




void SAL_CALL
    AccessibleDocumentViewBase::windowShown (const ::com::sun::star::lang::EventObject& )
    throw (::com::sun::star::uno::RuntimeException)
{
    if( IsDisposed() )
        return;

    ViewForwarderChanged (
        IAccessibleViewForwarderListener::VISIBLE_AREA,
        &maViewForwarder);
}




void SAL_CALL
    AccessibleDocumentViewBase::windowHidden (const ::com::sun::star::lang::EventObject& )
    throw (::com::sun::star::uno::RuntimeException)
{
    if( IsDisposed() )
        return;

    ViewForwarderChanged (
        IAccessibleViewForwarderListener::VISIBLE_AREA,
        &maViewForwarder);
}




//=====  XFocusListener  ==================================================

void AccessibleDocumentViewBase::focusGained (const ::com::sun::star::awt::FocusEvent& e)
    throw (::com::sun::star::uno::RuntimeException)
{
    ThrowIfDisposed ();
    if (e.Source == mxWindow)
        Activated ();
}

void AccessibleDocumentViewBase::focusLost (const ::com::sun::star::awt::FocusEvent& e)
    throw (::com::sun::star::uno::RuntimeException)
{
    ThrowIfDisposed ();
    if (e.Source == mxWindow)
        Deactivated ();
}




//=====  protected internal  ==================================================

// This method is called from the component helper base class while disposing.
void SAL_CALL AccessibleDocumentViewBase::disposing (void)
{
    impl_dispose();

    AccessibleContextBase::disposing ();
}




///	Create a name for this view.
::rtl::OUString
    AccessibleDocumentViewBase::CreateAccessibleName (void)
    throw (::com::sun::star::uno::RuntimeException)
{
	return ::rtl::OUString (
        RTL_CONSTASCII_USTRINGPARAM("AccessibleDocumentViewBase"));
}




/** Create a description for this view.  Use the model's description or URL
    if a description is not available.
*/
::rtl::OUString
    AccessibleDocumentViewBase::CreateAccessibleDescription (void)
    throw (::com::sun::star::uno::RuntimeException)
{
	rtl::OUString sDescription;

    uno::Reference<lang::XServiceInfo> xInfo (mxController, uno::UNO_QUERY);
    if (xInfo.is())
    {
        OUString sFirstService = xInfo->getSupportedServiceNames()[0];
        if (sFirstService == OUString (
                RTL_CONSTASCII_USTRINGPARAM("com.sun.star.drawing.DrawingDocumentDrawView")))
        {
            sDescription = OUString (RTL_CONSTASCII_USTRINGPARAM("Draw Document"));
        }
        else
            sDescription = sFirstService;
    }
    else
        sDescription = OUString (
            RTL_CONSTASCII_USTRINGPARAM("Accessible Draw Document"));
	return sDescription;
}




void AccessibleDocumentViewBase::Activated (void)
{
    // Empty.  Overwrite to do something usefull.
}




void AccessibleDocumentViewBase::Deactivated (void)
{
    // Empty.  Overwrite to do something usefull.
}




void AccessibleDocumentViewBase::SetAccessibleOLEObject (
    const Reference <XAccessible>& xOLEObject)
{
    // Send child event about removed accessible OLE object if necessary.
    if (mxAccessibleOLEObject != xOLEObject)
        if (mxAccessibleOLEObject.is())
            CommitChange (
                AccessibleEventId::CHILD,
                uno::Any(),
                uno::makeAny (mxAccessibleOLEObject));

    // Assume that the accessible OLE Object disposes itself correctly.

    {
        ::osl::MutexGuard aGuard (maMutex);
        mxAccessibleOLEObject = xOLEObject;
    }

    // Send child event about new accessible OLE object if necessary.
    if (mxAccessibleOLEObject.is())
        CommitChange (
            AccessibleEventId::CHILD,
            uno::makeAny (mxAccessibleOLEObject),
            uno::Any());
}




//=====  methods from AccessibleSelectionBase ==================================================

// return the member maMutex;
::osl::Mutex&
    AccessibleDocumentViewBase::implGetMutex()
{
    return( maMutex );
}

// return ourself as context in default case
uno::Reference< XAccessibleContext >
    AccessibleDocumentViewBase::implGetAccessibleContext()
    throw (uno::RuntimeException)
{
    return( this );
}

// return sal_False in default case
sal_Bool
    AccessibleDocumentViewBase::implIsSelected( sal_Int32 )
    throw (uno::RuntimeException)
{
    return( sal_False );
}

// return nothing in default case
void
    AccessibleDocumentViewBase::implSelect( sal_Int32, sal_Bool )
    throw (lang::IndexOutOfBoundsException, uno::RuntimeException)
{
}

uno::Any SAL_CALL AccessibleDocumentViewBase::getExtendedAttributes()
		throw (::com::sun::star::lang::IndexOutOfBoundsException, ::com::sun::star::uno::RuntimeException)
{
	uno::Any anyAtrribute;
	rtl::OUString sValue;
	if (mpViewShell && mpViewShell->ISA(::sd::DrawViewShell))
	{
		::sd::DrawViewShell* pDrViewSh = (::sd::DrawViewShell*) mpViewShell;
		rtl::OUString sName;
		String sDisplay;
			sName = rtl::OUString::createFromAscii("page-name:");
			// MT IA2: Not used...
			// SdPage*	pCurrPge = pDrViewSh->getCurrentPage();
			SdDrawDocument* pDoc = pDrViewSh->GetDoc();
			sDisplay = pDrViewSh->getCurrentPage()->GetName();
			sDisplay.SearchAndReplace( String::CreateFromAscii( "\\" ), String::CreateFromAscii("\\\\" ));
			sDisplay.SearchAndReplace( String::CreateFromAscii( "=" ), String::CreateFromAscii("\\=" ) );
			sDisplay.SearchAndReplace( String::CreateFromAscii( ";" ), String::CreateFromAscii("\\;" ) );
			sDisplay.SearchAndReplace( String::CreateFromAscii( "," ), String::CreateFromAscii("\\," ) );
			sDisplay.SearchAndReplace( String::CreateFromAscii( ":" ), String::CreateFromAscii("\\:" ) );
			sValue = sName + sDisplay ;
			sName = rtl::OUString::createFromAscii(";page-number:");
			sValue += sName;
			sValue += String::CreateFromInt32((sal_Int16)((sal_uInt16)((pDrViewSh->getCurrentPage()->GetPageNum()-1)>>1) + 1)) ;
			sName = rtl::OUString::createFromAscii(";total-pages:");
			sValue += sName;
			sValue += String::CreateFromInt32(pDrViewSh->GetPageTabControl()->GetPageCount()) ;
			sValue +=  rtl::OUString::createFromAscii(";");

        if(pDrViewSh->IsLayerModeActive() && pDrViewSh->GetLayerTabControl()) // #87182#
		{
			sName = rtl::OUString::createFromAscii("page-name:");
			sValue = sName;
			sDisplay = pDrViewSh->GetLayerTabControl()->GetPageText(pDrViewSh->GetLayerTabControl()->GetCurPageId());
			if( pDoc )
			{
				SdrLayerAdmin& rLayerAdmin = pDoc->GetLayerAdmin();
				SdrLayer* aSdrLayer = rLayerAdmin.GetLayer(sDisplay, sal_False);
				if( aSdrLayer )
				{
					String layerAltText = aSdrLayer->GetTitle();
					if(  layerAltText.Len() > 0)
					{
						sName = rtl::OUString::createFromAscii(" ");
						sDisplay = sDisplay + sName;
						sDisplay += layerAltText;
					}
				}
			}
			sDisplay.SearchAndReplace( String::CreateFromAscii( "\\" ), String::CreateFromAscii("\\\\" ));
			sDisplay.SearchAndReplace( String::CreateFromAscii( "=" ), String::CreateFromAscii("\\=" ));
			sDisplay.SearchAndReplace( String::CreateFromAscii( ";" ), String::CreateFromAscii("\\;" ));
			sDisplay.SearchAndReplace( String::CreateFromAscii( "," ), String::CreateFromAscii("\\," ));
			sDisplay.SearchAndReplace( String::CreateFromAscii( ":" ), String::CreateFromAscii("\\:" ));
			sValue +=  sDisplay;
			sName = rtl::OUString::createFromAscii(";page-number:");
			sValue += sName;
			sValue += String::CreateFromInt32(pDrViewSh->GetActiveTabLayerIndex()+1) ;
			sName = rtl::OUString::createFromAscii(";total-pages:");
			sValue += sName;
			sValue += String::CreateFromInt32(pDrViewSh->GetLayerTabControl()->GetPageCount()) ;
			sValue +=  rtl::OUString::createFromAscii(";");
		}
	}
	if (mpViewShell && mpViewShell->ISA(::sd::PresentationViewShell))
	{
		::sd::PresentationViewShell* pPresViewSh = (::sd::PresentationViewShell*) mpViewShell;
		SdPage*	pCurrPge = pPresViewSh->getCurrentPage();
		SdDrawDocument* pDoc = pPresViewSh->GetDoc();
		SdPage*	pNotesPge = (SdPage*)pDoc->GetSdPage((pCurrPge->GetPageNum()-1)>>1, PK_NOTES);
		if (pNotesPge)
		{
			SdrObject* pNotesObj = pNotesPge->GetPresObj(PRESOBJ_NOTES);
			if (pNotesObj)
			{
				OutlinerParaObject* pPara = pNotesObj->GetOutlinerParaObject();
				if (pPara)
				{
					sValue += rtl::OUString::createFromAscii("note:");
					const EditTextObject& rEdit = pPara->GetTextObject();
					for (sal_uInt16 i=0;i<rEdit.GetParagraphCount();i++)
					{
						String strNote = rEdit.GetText(i);
						strNote.SearchAndReplace( String::CreateFromAscii( "\\" ), String::CreateFromAscii("\\\\" ));
						strNote.SearchAndReplace( String::CreateFromAscii( "=" ), String::CreateFromAscii("\\=" ));
						strNote.SearchAndReplace( String::CreateFromAscii( ";" ), String::CreateFromAscii("\\;" ));
						strNote.SearchAndReplace( String::CreateFromAscii( "," ), String::CreateFromAscii("\\," ));
						strNote.SearchAndReplace( String::CreateFromAscii( ":" ), String::CreateFromAscii("\\:" ));
						sValue += rtl::OUString( strNote );
						sValue += rtl::OUString::createFromAscii(";");//to divide each paragraph
					}
				}
			}
		}
	}
	if (mpViewShell && mpViewShell->ISA(::sd::OutlineViewShell) )
	{
		rtl::OUString sName;
		String sDisplay;
		SdPage*	pCurrPge = mpViewShell->GetActualPage();
		SdDrawDocument* pDoc = mpViewShell->GetDoc();
		if(pCurrPge && pDoc)
		{
			sName = rtl::OUString::createFromAscii("page-name:");
			sDisplay = pCurrPge->GetName();
			sDisplay.SearchAndReplace( String::CreateFromAscii( "=" ), String::CreateFromAscii("\\=" ) );
			sDisplay.SearchAndReplace( String::CreateFromAscii( ";" ), String::CreateFromAscii("\\;" ) );
			sDisplay.SearchAndReplace( String::CreateFromAscii( "," ), String::CreateFromAscii("\\," ) );
			sDisplay.SearchAndReplace( String::CreateFromAscii( ":" ), String::CreateFromAscii("\\:" ) );
			sValue = sName + sDisplay ;
			sName = rtl::OUString::createFromAscii(";page-number:");
			sValue += sName;
			sValue += String::CreateFromInt32((sal_Int16)((sal_uInt16)((pCurrPge->GetPageNum()-1)>>1) + 1)) ;
			sName = rtl::OUString::createFromAscii(";total-pages:");
			sValue += sName;
			sValue += String::CreateFromInt32(pDoc->GetSdPageCount(PK_STANDARD)) ;
			sValue +=  rtl::OUString::createFromAscii(";");
		}
	}
	if (sValue.getLength())
		anyAtrribute <<= sValue;
	return anyAtrribute;
}
::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any >
		SAL_CALL AccessibleDocumentViewBase::get_AccFlowTo(const ::com::sun::star::uno::Any&, sal_Int32 )
		throw ( ::com::sun::star::uno::RuntimeException )
{
	::com::sun::star::uno::Sequence< uno::Any> aRet;

	return aRet;
}

sal_Int32 SAL_CALL AccessibleDocumentViewBase::getForeground(  )
        throw (uno::RuntimeException)
{
    return COL_BLACK;
}

sal_Int32 SAL_CALL AccessibleDocumentViewBase::getBackground(  )
        throw (uno::RuntimeException)
{
	 ThrowIfDisposed ();
    ::osl::MutexGuard aGuard (maMutex);
    return mpViewShell->GetView()->getColorConfig().GetColorValue( ::svtools::DOCCOLOR ).nColor;
}
} // end of namespace accessibility