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office-gobmx/sd/source/ui/accessibility/AccessibleDocumentViewBase.cxx

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/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// 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 <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 "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);
}
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);
USHORT 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());
}
}
}
}
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)
);
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)
{
}
} // end of namespace accessibility
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