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|
/* -*- 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 <svx/AccessibleControlShape.hxx>
#include <svx/AccessibleShapeInfo.hxx>
#include <svx/DescriptionGenerator.hxx>
#include <com/sun/star/drawing/XControlShape.hpp>
#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include <com/sun/star/accessibility/AccessibleStateType.hpp>
#include <com/sun/star/form/FormComponentType.hpp>
#include <com/sun/star/reflection/ProxyFactory.hpp>
#include <com/sun/star/util/XModeChangeBroadcaster.hpp>
#include <com/sun/star/container/XContainer.hpp>
#include <com/sun/star/container/XChild.hpp>
#include <comphelper/processfactory.hxx>
#include <comphelper/property.hxx>
#include <comphelper/types.hxx>
#include <unotools/accessiblestatesethelper.hxx>
#include <unotools/accessiblerelationsethelper.hxx>
#include <svx/IAccessibleParent.hxx>
#include <svx/svdouno.hxx>
#include <svx/unoapi.hxx>
#include <svx/ShapeTypeHandler.hxx>
#include <svx/SvxShapeTypes.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include <comphelper/accessiblewrapper.hxx>
#include <svx/svdview.hxx>
#include <svx/svdpagv.hxx>
#include <svx/strings.hrc>
#include <vcl/svapp.hxx>
#include <algorithm>
using namespace ::accessibility;
using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::awt;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::reflection;
using namespace ::com::sun::star::drawing;
using namespace ::com::sun::star::container;
namespace
{
OUString lcl_getNamePropertyName( )
{
return OUString( "Name" );
}
OUString lcl_getDescPropertyName( )
{
return OUString( "HelpText" );
}
OUString lcl_getLabelPropertyName( )
{
return OUString( "Label" );
}
OUString lcl_getLabelControlPropertyName( )
{
return OUString("LabelControl");
}
// return the property which should be used as AccessibleName
const OUString lcl_getPreferredAccNameProperty( const Reference< XPropertySetInfo >& _rxPSI )
{
if ( _rxPSI.is() && _rxPSI->hasPropertyByName( lcl_getLabelPropertyName() ) )
return lcl_getLabelPropertyName();
else
return lcl_getNamePropertyName();
}
// determines whether or not a state which belongs to the inner context needs to be forwarded to the "composed"
// context
bool isComposedState( const sal_Int16 _nState )
{
return ( ( AccessibleStateType::INVALID != _nState )
&& ( AccessibleStateType::DEFUNC != _nState )
&& ( AccessibleStateType::ICONIFIED != _nState )
&& ( AccessibleStateType::RESIZABLE != _nState )
&& ( AccessibleStateType::SELECTABLE != _nState )
&& ( AccessibleStateType::SHOWING != _nState )
&& ( AccessibleStateType::MANAGES_DESCENDANTS != _nState )
&& ( AccessibleStateType::VISIBLE != _nState )
);
}
/// determines whether the given control is in alive mode
inline bool isAliveMode( const Reference< XControl >& _rxControl )
{
OSL_PRECOND( _rxControl.is(), "AccessibleControlShape::isAliveMode: invalid control" );
return _rxControl.is() && !_rxControl->isDesignMode();
}
}
AccessibleControlShape::AccessibleControlShape (
const AccessibleShapeInfo& rShapeInfo,
const AccessibleShapeTreeInfo& rShapeTreeInfo)
: AccessibleShape (rShapeInfo, rShapeTreeInfo)
, m_bListeningForName( false )
, m_bListeningForDesc( false )
, m_bMultiplexingStates( false )
, m_bDisposeNativeContext( false )
, m_bWaitingForControl( false )
{
m_pChildManager = new comphelper::OWrappedAccessibleChildrenManager( comphelper::getProcessComponentContext() );
osl_atomic_increment( &m_refCount );
{
m_pChildManager->setOwningAccessible( this );
}
osl_atomic_decrement( &m_refCount );
}
AccessibleControlShape::~AccessibleControlShape()
{
m_pChildManager.clear();
if ( m_xControlContextProxy.is() )
m_xControlContextProxy->setDelegator( nullptr );
m_xControlContextProxy.clear();
m_xControlContextTypeAccess.clear();
m_xControlContextComponent.clear();
// this should remove the _only_ three "real" reference (means not delegated to
// ourself) to this proxy, and thus delete it
}
namespace {
Reference< XContainer > lcl_getControlContainer( const vcl::Window* _pWin, const SdrView* _pView )
{
Reference< XContainer > xReturn;
DBG_ASSERT( _pView, "lcl_getControlContainer: invalid view!" );
if ( _pView && _pView->GetSdrPageView())
{
xReturn.set(_pView->GetSdrPageView()->GetControlContainer( *_pWin ), css::uno::UNO_QUERY);
}
return xReturn;
}
}
void AccessibleControlShape::Init()
{
AccessibleShape::Init();
OSL_ENSURE( !m_xControlContextProxy.is(), "AccessibleControlShape::Init: already initialized!" );
try
{
// What we need to do here is merge the functionality of the AccessibleContext of our UNO control
// with our own AccessibleContext-related functionality.
// The problem is that we do not know the interfaces our "inner" context supports - this may be any
// XAccessibleXXX interface (or even any other) which makes sense for it.
// In theory, we could implement all possible interfaces ourself, and re-route all functionality to
// the inner context (except those we implement ourself, like XAccessibleComponent). But this is in no
// way future-proof - as soon as an inner context appears which implements an additional interface,
// we would need to adjust our implementation to support this new interface, too. Bad idea.
// The usual solution for such a problem is aggregation. Aggregation means using UNO's own mechanism
// for merging an inner with an outer component, and get a component which behaves as it is exactly one.
// This is what XAggregation is for. Unfortunately, aggregation requires _exact_ control over the ref count
// of the inner object, which we do not have at all.
// Bad, too.
// But there is a solution: com.sun.star.reflection.ProxyFactory. This service is able to create a proxy
// for any component, which supports _exactly_ the same interfaces as the component. In addition, it can
// be aggregated, as by definition the proxy's ref count is exactly 1 when returned from the factory.
// Sounds better. Though this yields the problem of slightly degraded performance, it's the only solution
// I'm aware of at the moment .....
// get the control which belongs to our model (relative to our view)
const vcl::Window* pViewWindow = maShapeTreeInfo.GetWindow();
SdrUnoObj* pUnoObjectImpl = dynamic_cast<SdrUnoObj*>( GetSdrObjectFromXShape(mxShape) );
SdrView* pView = maShapeTreeInfo.GetSdrView();
OSL_ENSURE( pView && pViewWindow && pUnoObjectImpl, "AccessibleControlShape::Init: no view, or no view window, no SdrUnoObj!" );
if ( pView && pViewWindow && pUnoObjectImpl )
{
// get the context of the control - it will be our "inner" context
m_xUnoControl = pUnoObjectImpl->GetUnoControl( *pView, *pViewWindow );
if ( !m_xUnoControl.is() )
{
// the control has not yet been created. Though speaking strictly, it is a bug that
// our instance here is created without an existing control (because an AccessibleControlShape
// is a representation of a view object, and can only live if the view it should represent
// is complete, which implies a living control), it's by far the easiest and most riskless way
// to fix this here in this class.
// Okay, we will add as listener to the control container where we expect our control to appear.
OSL_ENSURE( !m_bWaitingForControl, "AccessibleControlShape::Init: already waiting for the control!" );
Reference< XContainer > xControlContainer = lcl_getControlContainer( pViewWindow, maShapeTreeInfo.GetSdrView() );
OSL_ENSURE( xControlContainer.is(), "AccessibleControlShape::Init: unable to find my ControlContainer!" );
if ( xControlContainer.is() )
{
xControlContainer->addContainerListener( this );
m_bWaitingForControl = true;
}
}
else
{
Reference< XModeChangeBroadcaster > xControlModes( m_xUnoControl, UNO_QUERY );
Reference< XAccessible > xControlAccessible( xControlModes, UNO_QUERY );
Reference< XAccessibleContext > xNativeControlContext;
if ( xControlAccessible.is() )
xNativeControlContext = xControlAccessible->getAccessibleContext();
OSL_ENSURE( xNativeControlContext.is(), "AccessibleControlShape::Init: no AccessibleContext for the control!" );
m_aControlContext = WeakReference< XAccessibleContext >( xNativeControlContext );
// add as listener to the context - we want to multiplex some states
if ( isAliveMode( m_xUnoControl ) && xNativeControlContext.is() )
{ // (but only in alive mode)
startStateMultiplexing( );
}
// now that we have all information about our control, do some adjustments
adjustAccessibleRole();
initializeComposedState();
// some initialization for our child manager, which is used in alive mode only
if ( isAliveMode( m_xUnoControl ) )
{
Reference< XAccessibleStateSet > xStates( getAccessibleStateSet( ) );
OSL_ENSURE( xStates.is(), "AccessibleControlShape::AccessibleControlShape: no inner state set!" );
m_pChildManager->setTransientChildren( !xStates.is() || xStates->contains( AccessibleStateType::MANAGES_DESCENDANTS ) );
}
// finally, aggregate a proxy for the control context
// first a factory for the proxy
Reference< XProxyFactory > xFactory = ProxyFactory::create( comphelper::getProcessComponentContext() );
// then the proxy itself
if ( xNativeControlContext.is() )
{
m_xControlContextProxy = xFactory->createProxy( xNativeControlContext );
m_xControlContextTypeAccess.set( xNativeControlContext, UNO_QUERY_THROW );
m_xControlContextComponent.set( xNativeControlContext, UNO_QUERY_THROW );
// aggregate the proxy
osl_atomic_increment( &m_refCount );
if ( m_xControlContextProxy.is() )
{
// At this point in time, the proxy has a ref count of exactly one - in m_xControlContextProxy.
// Remember to _not_ reset this member unless the delegator of the proxy has been reset, too!
m_xControlContextProxy->setDelegator( *this );
}
osl_atomic_decrement( &m_refCount );
m_bDisposeNativeContext = true;
// Finally, we need to add ourself as mode listener to the control. In case the mode switches,
// we need to dispose ourself.
xControlModes->addModeChangeListener( this );
}
}
}
}
catch( const Exception& )
{
OSL_FAIL( "AccessibleControlShape::Init: could not \"aggregate\" the controls XAccessibleContext!" );
}
}
void SAL_CALL AccessibleControlShape::grabFocus()
{
if ( !m_xUnoControl.is() || !isAliveMode( m_xUnoControl ) )
{
// in design mode, we simply forward the request to the base class
AccessibleShape::grabFocus();
}
else
{
Reference< XWindow > xWindow( m_xUnoControl, UNO_QUERY );
OSL_ENSURE( xWindow.is(), "AccessibleControlShape::grabFocus: invalid control!" );
if ( xWindow.is() )
xWindow->setFocus();
}
}
OUString SAL_CALL AccessibleControlShape::getImplementationName()
{
return OUString( "com.sun.star.comp.accessibility.AccessibleControlShape" );
}
OUString AccessibleControlShape::CreateAccessibleBaseName()
{
OUString sName;
ShapeTypeId nShapeType = ShapeTypeHandler::Instance().GetTypeId (mxShape);
switch (nShapeType)
{
case DRAWING_CONTROL:
sName = "ControlShape";
break;
default:
sName = "UnknownAccessibleControlShape";
Reference< XShapeDescriptor > xDescriptor (mxShape, UNO_QUERY);
if (xDescriptor.is())
sName += ": " + xDescriptor->getShapeType();
}
return sName;
}
OUString
AccessibleControlShape::CreateAccessibleDescription()
{
DescriptionGenerator aDG (mxShape);
ShapeTypeId nShapeType = ShapeTypeHandler::Instance().GetTypeId (mxShape);
switch (nShapeType)
{
case DRAWING_CONTROL:
{
// check if we can obtain the "Desc" property from the model
OUString sDesc( getControlModelStringProperty( lcl_getDescPropertyName() ) );
if ( sDesc.isEmpty() )
{ // no -> use the default
aDG.Initialize (STR_ObjNameSingulUno);
aDG.AddProperty ("ControlBackground", DescriptionGenerator::PropertyType::Color, "");
aDG.AddProperty ( "ControlBorder", DescriptionGenerator::PropertyType::Integer, "");
}
// ensure that we are listening to the Name property
m_bListeningForDesc = ensureListeningState( m_bListeningForDesc, true, lcl_getDescPropertyName() );
}
break;
default:
aDG.Initialize ("Unknown accessible control shape");
Reference< XShapeDescriptor > xDescriptor (mxShape, UNO_QUERY);
if (xDescriptor.is())
{
aDG.AppendString ("service name=");
aDG.AppendString (xDescriptor->getShapeType());
}
}
return aDG();
}
IMPLEMENT_FORWARD_REFCOUNT( AccessibleControlShape, AccessibleShape )
IMPLEMENT_GET_IMPLEMENTATION_ID( AccessibleControlShape )
void SAL_CALL AccessibleControlShape::propertyChange( const PropertyChangeEvent& _rEvent )
{
::osl::MutexGuard aGuard( maMutex );
// check if it is the name or the description
if ( _rEvent.PropertyName == lcl_getNamePropertyName()
|| _rEvent.PropertyName == lcl_getLabelPropertyName() )
{
SetAccessibleName(
CreateAccessibleName(),
AccessibleContextBase::AutomaticallyCreated);
}
else if ( _rEvent.PropertyName == lcl_getDescPropertyName() )
{
SetAccessibleDescription(
CreateAccessibleDescription(),
AccessibleContextBase::AutomaticallyCreated);
}
#if OSL_DEBUG_LEVEL > 0
else
{
OSL_FAIL( "AccessibleControlShape::propertyChange: where did this come from?" );
}
#endif
}
Any SAL_CALL AccessibleControlShape::queryInterface( const Type& _rType )
{
Any aReturn = AccessibleShape::queryInterface( _rType );
if ( !aReturn.hasValue() )
{
aReturn = AccessibleControlShape_Base::queryInterface( _rType );
if ( !aReturn.hasValue() && m_xControlContextProxy.is() )
aReturn = m_xControlContextProxy->queryAggregation( _rType );
}
return aReturn;
}
Sequence< Type > SAL_CALL AccessibleControlShape::getTypes()
{
Sequence< Type > aShapeTypes = AccessibleShape::getTypes();
Sequence< Type > aOwnTypes = AccessibleControlShape_Base::getTypes();
Sequence< Type > aAggregateTypes;
if ( m_xControlContextTypeAccess.is() )
aAggregateTypes = m_xControlContextTypeAccess->getTypes();
Sequence< Type > aAllTypes = comphelper::concatSequences( aShapeTypes, aOwnTypes, aAggregateTypes );
// remove duplicates
Type* pBegin = aAllTypes.getArray();
Type* pEnd = pBegin + aAllTypes.getLength();
while ( pBegin != pEnd )
{
Type aThisRoundType = *pBegin;
if ( ++pBegin != pEnd )
{
pEnd = ::std::remove( pBegin, pEnd, aThisRoundType );
// now all types between begin and (the old) end which equal aThisRoundType
// are moved behind the new end
}
}
aAllTypes.realloc( pEnd - aAllTypes.getArray() );
return aAllTypes;
}
void SAL_CALL AccessibleControlShape::notifyEvent( const AccessibleEventObject& _rEvent )
{
if ( AccessibleEventId::STATE_CHANGED == _rEvent.EventId )
{
// multiplex this change
sal_Int16 nLostState( 0 ), nGainedState( 0 );
_rEvent.OldValue >>= nLostState;
_rEvent.NewValue >>= nGainedState;
// don't multiplex states which the inner context is not responsible for
if ( isComposedState( nLostState ) )
AccessibleShape::ResetState( nLostState );
if ( isComposedState( nGainedState ) )
AccessibleShape::SetState( nGainedState );
}
else
{
AccessibleEventObject aTranslatedEvent( _rEvent );
{
::osl::MutexGuard aGuard( maMutex );
// let the child manager translate the event
aTranslatedEvent.Source = *this;
m_pChildManager->translateAccessibleEvent( _rEvent, aTranslatedEvent );
// see if any of these notifications affect our child manager
m_pChildManager->handleChildNotification( _rEvent );
}
FireEvent( aTranslatedEvent );
}
}
void SAL_CALL AccessibleControlShape::modeChanged(const ModeChangeEvent& rSource)
{
// did it come from our inner context (the real one, not it's proxy!)?
SAL_INFO("sw.uno", "AccessibleControlShape::modeChanged");
Reference<XControl> xSource(rSource.Source, UNO_QUERY); // for faster compare
if(xSource.get() != m_xUnoControl.get())
{
SAL_WARN("sw.uno", "AccessibleControlShape::modeChanged: where did this come from?");
return;
}
SolarMutexGuard g;
// If our "pseudo-aggregated" inner context does not live anymore,
// we don't want to live, too. This is accomplished by asking our
// parent to replace this object with a new one. Disposing this
// object and sending notifications about the replacement are in
// the responsibility of our parent.
const bool bReplaced = mpParent->ReplaceChild(this, mxShape, 0, maShapeTreeInfo);
SAL_WARN_IF(!bReplaced, "sw.uno", "AccessibleControlShape::modeChanged: replacing ourselves away did fail");
}
void SAL_CALL AccessibleControlShape::disposing (const EventObject& _rSource)
{
AccessibleShape::disposing( _rSource );
}
bool AccessibleControlShape::ensureListeningState(
const bool _bCurrentlyListening, const bool _bNeedNewListening,
const OUString& _rPropertyName )
{
if ( ( _bCurrentlyListening == _bNeedNewListening ) || !ensureControlModelAccess() )
// nothing to do
return _bCurrentlyListening;
try
{
if ( !m_xModelPropsMeta.is() || m_xModelPropsMeta->hasPropertyByName( _rPropertyName ) )
{
// add or revoke as listener
if ( _bNeedNewListening )
m_xControlModel->addPropertyChangeListener( _rPropertyName, static_cast< XPropertyChangeListener* >( this ) );
else
m_xControlModel->removePropertyChangeListener( _rPropertyName, static_cast< XPropertyChangeListener* >( this ) );
}
else
OSL_FAIL( "AccessibleControlShape::ensureListeningState: this property does not exist at this model!" );
}
catch( const Exception& )
{
OSL_FAIL( "AccessibleControlShape::ensureListeningState: could not change the listening state!" );
}
return _bNeedNewListening;
}
sal_Int32 SAL_CALL AccessibleControlShape::getAccessibleChildCount( )
{
if ( !m_xUnoControl.is() )
return 0;
else if ( !isAliveMode( m_xUnoControl ) )
// no special action required when in design mode
return AccessibleShape::getAccessibleChildCount( );
else
{
// in alive mode, we have the full control over our children - they are determined by the children
// of the context of our UNO control
Reference< XAccessibleContext > xControlContext( m_aControlContext );
OSL_ENSURE( xControlContext.is(), "AccessibleControlShape::getAccessibleChildCount: control context already dead! How this!" );
return xControlContext.is() ? xControlContext->getAccessibleChildCount() : 0;
}
}
Reference< XAccessible > SAL_CALL AccessibleControlShape::getAccessibleChild( sal_Int32 i )
{
Reference< XAccessible > xChild;
if ( !m_xUnoControl.is() )
{
throw IndexOutOfBoundsException();
}
if ( !isAliveMode( m_xUnoControl ) )
{
// no special action required when in design mode - let the base class handle this
xChild = AccessibleShape::getAccessibleChild( i );
}
else
{
// in alive mode, we have the full control over our children - they are determined by the children
// of the context of our UNO control
Reference< XAccessibleContext > xControlContext( m_aControlContext );
OSL_ENSURE( xControlContext.is(), "AccessibleControlShape::getAccessibleChildCount: control context already dead! How this!" );
if ( xControlContext.is() )
{
Reference< XAccessible > xInnerChild( xControlContext->getAccessibleChild( i ) );
OSL_ENSURE( xInnerChild.is(), "AccessibleControlShape::getAccessibleChild: control context returned nonsense!" );
if ( xInnerChild.is() )
{
// we need to wrap this inner child into an own implementation
xChild = m_pChildManager->getAccessibleWrapperFor( xInnerChild );
}
}
}
#if OSL_DEBUG_LEVEL > 0
sal_Int32 nChildIndex = -1;
Reference< XAccessibleContext > xContext;
if ( xChild.is() )
xContext = xChild->getAccessibleContext( );
if ( xContext.is() )
nChildIndex = xContext->getAccessibleIndexInParent( );
SAL_WARN_IF( nChildIndex != i, "svx", "AccessibleControlShape::getAccessibleChild: index mismatch,"
" nChildIndex=" << nChildIndex << " vs i=" << i );
#endif
return xChild;
}
Reference< XAccessibleRelationSet > SAL_CALL AccessibleControlShape::getAccessibleRelationSet( )
{
utl::AccessibleRelationSetHelper* pRelationSetHelper = new utl::AccessibleRelationSetHelper;
ensureControlModelAccess();
AccessibleControlShape* pCtlAccShape = GetLabeledByControlShape();
if(pCtlAccShape)
{
Reference < XAccessible > xAcc (pCtlAccShape->getAccessibleContext(), UNO_QUERY);
css::uno::Sequence< css::uno::Reference< css::uno::XInterface > > aSequence { xAcc };
if( getAccessibleRole() == AccessibleRole::RADIO_BUTTON )
{
pRelationSetHelper->AddRelation( AccessibleRelation( AccessibleRelationType::MEMBER_OF, aSequence ) );
}
else
{
pRelationSetHelper->AddRelation( AccessibleRelation( AccessibleRelationType::LABELED_BY, aSequence ) );
}
}
Reference< XAccessibleRelationSet > xSet = pRelationSetHelper;
return xSet;
}
OUString AccessibleControlShape::CreateAccessibleName()
{
ensureControlModelAccess();
OUString sName;
if ( getAccessibleRole() != AccessibleRole::SHAPE
&& getAccessibleRole() != AccessibleRole::RADIO_BUTTON )
{
AccessibleControlShape* pCtlAccShape = GetLabeledByControlShape();
if(pCtlAccShape)
{
sName = pCtlAccShape->CreateAccessibleName();
}
}
if (sName.isEmpty())
{
// check if we can obtain the "Name" resp. "Label" property from the model
const OUString& rAccNameProperty = lcl_getPreferredAccNameProperty( m_xModelPropsMeta );
sName = getControlModelStringProperty( rAccNameProperty );
if ( !sName.getLength() )
{ // no -> use the default
sName = AccessibleShape::CreateAccessibleName();
}
}
// now that somebody first asked us for our name, ensure that we are listening to name changes on the model
m_bListeningForName = ensureListeningState( m_bListeningForName, true, lcl_getPreferredAccNameProperty( m_xModelPropsMeta ) );
return sName;
}
void SAL_CALL AccessibleControlShape::disposing()
{
// ensure we're not listening
m_bListeningForName = ensureListeningState( m_bListeningForName, false, lcl_getPreferredAccNameProperty( m_xModelPropsMeta ) );
m_bListeningForDesc = ensureListeningState( m_bListeningForDesc, false, lcl_getDescPropertyName() );
if ( m_bMultiplexingStates )
stopStateMultiplexing( );
// dispose the child cache/map
m_pChildManager->dispose();
// release the model
m_xControlModel.clear();
m_xModelPropsMeta.clear();
m_aControlContext = WeakReference< XAccessibleContext >();
// stop listening at the control container (should never be necessary here, but who knows ....)
if ( m_bWaitingForControl )
{
OSL_FAIL( "AccessibleControlShape::disposing: this should never happen!" );
Reference< XContainer > xContainer = lcl_getControlContainer( maShapeTreeInfo.GetWindow(), maShapeTreeInfo.GetSdrView() );
if ( xContainer.is() )
{
m_bWaitingForControl = false;
xContainer->removeContainerListener( this );
}
}
// forward the disposal to our inner context
if ( m_bDisposeNativeContext )
{
// don't listen for mode changes anymore
Reference< XModeChangeBroadcaster > xControlModes( m_xUnoControl, UNO_QUERY );
OSL_ENSURE( xControlModes.is(), "AccessibleControlShape::disposing: don't have an mode broadcaster anymore!" );
if ( xControlModes.is() )
xControlModes->removeModeChangeListener( this );
if ( m_xControlContextComponent.is() )
m_xControlContextComponent->dispose();
// do _not_ clear m_xControlContextProxy! This has to be done in the dtor for correct ref-count handling
// no need to dispose the proxy/inner context anymore
m_bDisposeNativeContext = false;
}
m_xUnoControl.clear();
// let the base do its stuff
AccessibleShape::disposing();
}
bool AccessibleControlShape::ensureControlModelAccess()
{
if ( m_xControlModel.is() )
return true;
try
{
Reference< XControlShape > xShape( mxShape, UNO_QUERY );
if ( xShape.is() )
m_xControlModel.set(xShape->getControl(), css::uno::UNO_QUERY);
if ( m_xControlModel.is() )
m_xModelPropsMeta = m_xControlModel->getPropertySetInfo();
}
catch( const Exception& )
{
OSL_FAIL( "AccessibleControlShape::ensureControlModelAccess: caught an exception!" );
}
return m_xControlModel.is();
}
void AccessibleControlShape::startStateMultiplexing()
{
OSL_PRECOND( !m_bMultiplexingStates, "AccessibleControlShape::startStateMultiplexing: already multiplexing!" );
#if OSL_DEBUG_LEVEL > 0
// we should have a control, and it should be in alive mode
OSL_PRECOND( isAliveMode( m_xUnoControl ),
"AccessibleControlShape::startStateMultiplexing: should be done in alive mode only!" );
#endif
// we should have the native context of the control
Reference< XAccessibleEventBroadcaster > xBroadcaster( m_aControlContext.get(), UNO_QUERY );
OSL_ENSURE( xBroadcaster.is(), "AccessibleControlShape::startStateMultiplexing: no AccessibleEventBroadcaster on the native context!" );
if ( xBroadcaster.is() )
{
xBroadcaster->addAccessibleEventListener( this );
m_bMultiplexingStates = true;
}
}
void AccessibleControlShape::stopStateMultiplexing()
{
OSL_PRECOND( m_bMultiplexingStates, "AccessibleControlShape::stopStateMultiplexing: not multiplexing!" );
// we should have the native context of the control
Reference< XAccessibleEventBroadcaster > xBroadcaster( m_aControlContext.get(), UNO_QUERY );
OSL_ENSURE( xBroadcaster.is(), "AccessibleControlShape::stopStateMultiplexing: no AccessibleEventBroadcaster on the native context!" );
if ( xBroadcaster.is() )
{
xBroadcaster->removeAccessibleEventListener( this );
m_bMultiplexingStates = false;
}
}
OUString AccessibleControlShape::getControlModelStringProperty( const OUString& _rPropertyName ) const
{
OUString sReturn;
try
{
if ( const_cast< AccessibleControlShape* >( this )->ensureControlModelAccess() )
{
if ( !m_xModelPropsMeta.is() || m_xModelPropsMeta->hasPropertyByName( _rPropertyName ) )
// ask only if a) the control does not have a PropertySetInfo object or b) it has, and the
// property in question is available
m_xControlModel->getPropertyValue( _rPropertyName ) >>= sReturn;
}
}
catch( const Exception& )
{
OSL_FAIL( "OAccessibleControlContext::getModelStringProperty: caught an exception!" );
}
return sReturn;
}
void AccessibleControlShape::adjustAccessibleRole( )
{
// if we're in design mode, we are a simple SHAPE, in alive mode, we use the role of our inner context
if ( !isAliveMode( m_xUnoControl ) )
return;
// we're in alive mode -> determine the role of the inner context
Reference< XAccessibleContext > xNativeContext( m_aControlContext );
OSL_PRECOND( xNativeContext.is(), "AccessibleControlShape::adjustAccessibleRole: no inner context!" );
if ( xNativeContext.is() )
SetAccessibleRole( xNativeContext->getAccessibleRole( ) );
}
#ifdef DBG_UTIL
bool AccessibleControlShape::SetState( sal_Int16 _nState )
{
OSL_ENSURE( !isAliveMode( m_xUnoControl ) || !isComposedState( _nState ),
"AccessibleControlShape::SetState: a state which should be determined by the control context is set from outside!" );
return AccessibleShape::SetState( _nState );
}
#endif // DBG_UTIL
void AccessibleControlShape::initializeComposedState()
{
if ( !isAliveMode( m_xUnoControl ) )
// no action necessary for design mode
return;
// get our own state set implementation
::utl::AccessibleStateSetHelper* pComposedStates =
static_cast< ::utl::AccessibleStateSetHelper* >( mxStateSet.get() );
OSL_PRECOND( pComposedStates,
"AccessibleControlShape::initializeComposedState: no composed set!" );
// we need to reset some states of the composed set, because they either do not apply
// for controls in alive mode, or are in the responsibility of the UNO-control, anyway
pComposedStates->RemoveState( AccessibleStateType::ENABLED ); // this is controlled by the UNO-control
pComposedStates->RemoveState( AccessibleStateType::SENSITIVE ); // this is controlled by the UNO-control
pComposedStates->RemoveState( AccessibleStateType::FOCUSABLE ); // this is controlled by the UNO-control
pComposedStates->RemoveState( AccessibleStateType::SELECTABLE ); // this does not hold for an alive UNO-control
#if OSL_DEBUG_LEVEL > 0
// now, only states which are not in the responsibility of the UNO control should be part of this state set
{
Sequence< sal_Int16 > aInitStates = pComposedStates->getStates();
for ( sal_Int32 i=0; i<aInitStates.getLength(); ++i )
OSL_ENSURE( !isComposedState( aInitStates.getConstArray()[i] ),
"AccessibleControlShape::initializeComposedState: invalid initial composed state (should be controlled by the UNO-control)!" );
}
#endif
// get my inner context
Reference< XAccessibleContext > xInnerContext( m_aControlContext );
OSL_PRECOND( xInnerContext.is(), "AccessibleControlShape::initializeComposedState: no inner context!" );
if ( xInnerContext.is() )
{
// get all states of the inner context
Reference< XAccessibleStateSet > xInnerStates( xInnerContext->getAccessibleStateSet() );
OSL_ENSURE( xInnerStates.is(), "AccessibleControlShape::initializeComposedState: no inner states!" );
Sequence< sal_Int16 > aInnerStates;
if ( xInnerStates.is() )
aInnerStates = xInnerStates->getStates();
// look which one are to be propagated to the composed context
const sal_Int16* pStates = aInnerStates.getConstArray();
const sal_Int16* pStatesEnd = pStates + aInnerStates.getLength();
for ( ; pStates != pStatesEnd; ++pStates )
{
if ( isComposedState( *pStates ) && !pComposedStates->contains( *pStates ) )
{
pComposedStates->AddState( *pStates );
}
}
}
}
void SAL_CALL AccessibleControlShape::elementInserted( const css::container::ContainerEvent& _rEvent )
{
Reference< XContainer > xContainer( _rEvent.Source, UNO_QUERY );
Reference< XControl > xControl( _rEvent.Element, UNO_QUERY );
OSL_ENSURE( xContainer.is() && xControl.is(),
"AccessibleControlShape::elementInserted: invalid event description!" );
if ( !xControl.is() )
return;
ensureControlModelAccess();
Reference< XInterface > xNewNormalized( xControl->getModel(), UNO_QUERY );
Reference< XInterface > xMyModelNormalized( m_xControlModel, UNO_QUERY );
if ( xNewNormalized.get() && xMyModelNormalized.get() )
{
// now finally the control for the model we're responsible for has been inserted into the container
Reference< XInterface > xKeepAlive( *this );
// first, we're not interested in any more container events
if ( xContainer.is() )
{
xContainer->removeContainerListener( this );
m_bWaitingForControl = false;
}
// second, we need to replace ourself with a new version, which now can be based on the
// control
OSL_VERIFY( mpParent->ReplaceChild ( this, mxShape, 0, maShapeTreeInfo ) );
}
}
void SAL_CALL AccessibleControlShape::elementRemoved( const css::container::ContainerEvent& )
{
// not interested in
}
void SAL_CALL AccessibleControlShape::elementReplaced( const css::container::ContainerEvent& )
{
// not interested in
}
AccessibleControlShape* SAL_CALL AccessibleControlShape::GetLabeledByControlShape( )
{
if(m_xControlModel.is())
{
const OUString& rAccLabelControlProperty = lcl_getLabelControlPropertyName();
Any sCtlLabelBy;
// get the "label by" property value of the control
if (::comphelper::hasProperty(rAccLabelControlProperty, m_xControlModel))
{
sCtlLabelBy = m_xControlModel->getPropertyValue(rAccLabelControlProperty);
if( sCtlLabelBy.hasValue() )
{
Reference< XPropertySet > xAsSet (sCtlLabelBy, UNO_QUERY);
AccessibleControlShape* pCtlAccShape = mpParent->GetAccControlShapeFromModel(xAsSet.get());
return pCtlAccShape;
}
}
}
return nullptr;
}
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