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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 <AccessibleBase.hxx>
+#include "AccessibleChartShape.hxx"
+#include <ObjectHierarchy.hxx>
+#include <ObjectIdentifier.hxx>
+#include <chartview/ExplicitValueProvider.hxx>
+
+#include <com/sun/star/accessibility/AccessibleEventId.hpp>
+#include <com/sun/star/accessibility/AccessibleEventObject.hpp>
+#include <com/sun/star/accessibility/AccessibleStateType.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#include <com/sun/star/drawing/LineStyle.hpp>
+#include <com/sun/star/drawing/FillStyle.hpp>
+#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
+#include <com/sun/star/view/XSelectionSupplier.hpp>
+#include <sal/log.hxx>
+#include <vcl/svapp.hxx>
+#include <comphelper/servicehelper.hxx>
+#include <cppuhelper/supportsservice.hxx>
+#include <i18nlangtag/languagetag.hxx>
+#include <toolkit/helper/vclunohelper.hxx>
+#include <vcl/window.hxx>
+#include <vcl/settings.hxx>
+#include <o3tl/functional.hxx>
+#include <o3tl/safeint.hxx>
+#include <tools/diagnose_ex.h>
+#include <unotools/accessiblestatesethelper.hxx>
+
+#include <algorithm>
+#include <iterator>
+
+#include "ChartElementFactory.hxx"
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::accessibility;
+
+using ::com::sun::star::uno::UNO_QUERY;
+using ::com::sun::star::uno::Reference;
+using ::osl::MutexGuard;
+using ::osl::ClearableMutexGuard;
+using ::com::sun::star::uno::Any;
+
+namespace chart
+{
+
+/** @param bMayHaveChildren is false per default
+ */
+AccessibleBase::AccessibleBase(
+ const AccessibleElementInfo & rAccInfo,
+ bool bMayHaveChildren,
+ bool bAlwaysTransparent /* default: false */ ) :
+ impl::AccessibleBase_Base( m_aMutex ),
+ m_bIsDisposed( false ),
+ m_bMayHaveChildren( bMayHaveChildren ),
+ m_bChildrenInitialized( false ),
+ m_nEventNotifierId(0),
+ m_xStateSetHelper( new ::utl::AccessibleStateSetHelper() ),
+ m_aAccInfo( rAccInfo ),
+ m_bAlwaysTransparent( bAlwaysTransparent ),
+ m_bStateSetInitialized( false )
+{
+ // initialize some states
+ OSL_ASSERT( m_xStateSetHelper.is() );
+ m_xStateSetHelper->AddState( AccessibleStateType::ENABLED );
+ m_xStateSetHelper->AddState( AccessibleStateType::SHOWING );
+ m_xStateSetHelper->AddState( AccessibleStateType::VISIBLE );
+ m_xStateSetHelper->AddState( AccessibleStateType::SELECTABLE );
+ m_xStateSetHelper->AddState( AccessibleStateType::FOCUSABLE );
+}
+
+AccessibleBase::~AccessibleBase()
+{
+ OSL_ASSERT( m_bIsDisposed );
+}
+
+bool AccessibleBase::CheckDisposeState( bool bThrowException /* default: true */ ) const
+{
+ if( bThrowException &&
+ m_bIsDisposed )
+ {
+ throw lang::DisposedException("component has state DEFUNC",
+ static_cast< uno::XWeak * >( const_cast< AccessibleBase * >( this )));
+ }
+ return m_bIsDisposed;
+}
+
+bool AccessibleBase::NotifyEvent( EventType eEventType, const AccessibleUniqueId & rId )
+{
+ if( GetId() == rId )
+ {
+ // event is addressed to this object
+
+ css::uno::Any aEmpty;
+ css::uno::Any aSelected;
+ aSelected <<= AccessibleStateType::SELECTED;
+ switch( eEventType )
+ {
+ case EventType::GOT_SELECTION:
+ {
+ AddState( AccessibleStateType::SELECTED );
+ BroadcastAccEvent( AccessibleEventId::STATE_CHANGED, aSelected, aEmpty );
+
+ AddState( AccessibleStateType::FOCUSED );
+ aSelected <<= AccessibleStateType::FOCUSED;
+ BroadcastAccEvent( AccessibleEventId::STATE_CHANGED, aSelected, aEmpty );
+
+ SAL_INFO("chart2.accessibility", "Selection acquired by: " << getAccessibleName());
+ }
+ break;
+
+ case EventType::LOST_SELECTION:
+ {
+ RemoveState( AccessibleStateType::SELECTED );
+ BroadcastAccEvent( AccessibleEventId::STATE_CHANGED, aEmpty, aSelected );
+
+ AddState( AccessibleStateType::FOCUSED );
+ aSelected <<= AccessibleStateType::FOCUSED;
+ BroadcastAccEvent( AccessibleEventId::STATE_CHANGED, aEmpty, aSelected );
+ SAL_INFO("chart2.accessibility", "Selection lost by: " << getAccessibleName());
+ }
+ break;
+ }
+ return true;
+ }
+ else if( m_bMayHaveChildren )
+ {
+ bool bStop = false;
+
+ ClearableMutexGuard aGuard( m_aMutex );
+ // make local copy for notification
+ ChildListVectorType aLocalChildList( m_aChildList );
+ aGuard.clear();
+
+ for (auto const& localChild : aLocalChildList)
+ {
+ // Note: at this place we must be sure to have an AccessibleBase
+ // object in the UNO reference to XAccessible !
+ bStop = (*static_cast< AccessibleBase * >
+ ( localChild.get() )).NotifyEvent( eEventType, rId );
+ if (bStop)
+ break;
+ }
+ return bStop;
+ }
+
+ return false;
+}
+
+void AccessibleBase::AddState( sal_Int16 aState )
+{
+ CheckDisposeState();
+ OSL_ASSERT( m_xStateSetHelper.is() );
+ m_xStateSetHelper->AddState( aState );
+}
+
+void AccessibleBase::RemoveState( sal_Int16 aState )
+{
+ CheckDisposeState();
+ OSL_ASSERT( m_xStateSetHelper.is() );
+ m_xStateSetHelper->RemoveState( aState );
+}
+
+bool AccessibleBase::UpdateChildren()
+{
+ bool bMustUpdateChildren = false;
+ {
+ MutexGuard aGuard( m_aMutex );
+ if( ! m_bMayHaveChildren ||
+ m_bIsDisposed )
+ return false;
+
+ bMustUpdateChildren = ( m_bMayHaveChildren &&
+ ! m_bChildrenInitialized );
+ }
+
+ // update unguarded
+ if( bMustUpdateChildren )
+ m_bChildrenInitialized = ImplUpdateChildren();
+
+ return m_bChildrenInitialized;
+}
+
+bool AccessibleBase::ImplUpdateChildren()
+{
+ bool bResult = false;
+
+ if( m_aAccInfo.m_spObjectHierarchy )
+ {
+ ObjectHierarchy::tChildContainer aModelChildren(
+ m_aAccInfo.m_spObjectHierarchy->getChildren( GetId() ));
+ std::vector< ChildOIDMap::key_type > aAccChildren;
+ aAccChildren.reserve( aModelChildren.size());
+ std::transform( m_aChildOIDMap.begin(), m_aChildOIDMap.end(),
+ std::back_inserter( aAccChildren ),
+ ::o3tl::select1st< ChildOIDMap::value_type >() );
+
+ std::sort( aModelChildren.begin(), aModelChildren.end());
+
+ std::vector< ObjectIdentifier > aChildrenToRemove, aChildrenToAdd;
+ std::set_difference( aModelChildren.begin(), aModelChildren.end(),
+ aAccChildren.begin(), aAccChildren.end(),
+ std::back_inserter( aChildrenToAdd ));
+ std::set_difference( aAccChildren.begin(), aAccChildren.end(),
+ aModelChildren.begin(), aModelChildren.end(),
+ std::back_inserter( aChildrenToRemove ));
+
+ for (auto const& childToRemove : aChildrenToRemove)
+ {
+ RemoveChildByOId(childToRemove);
+ }
+
+ AccessibleElementInfo aAccInfo( GetInfo());
+ aAccInfo.m_pParent = this;
+
+ for (auto const& childToAdd : aChildrenToAdd)
+ {
+ aAccInfo.m_aOID = childToAdd;
+ if ( childToAdd.isAutoGeneratedObject() )
+ {
+ AddChild( ChartElementFactory::CreateChartElement( aAccInfo ).get() );
+ }
+ else if ( childToAdd.isAdditionalShape() )
+ {
+ AddChild( new AccessibleChartShape( aAccInfo ) );
+ }
+ }
+ bResult = true;
+ }
+
+ return bResult;
+}
+
+void AccessibleBase::AddChild( AccessibleBase * pChild )
+{
+ OSL_ENSURE( pChild != nullptr, "Invalid Child" );
+ if( !pChild )
+ return;
+
+ ClearableMutexGuard aGuard( m_aMutex );
+
+ Reference< XAccessible > xChild( pChild );
+ m_aChildList.push_back( xChild );
+
+ m_aChildOIDMap[ pChild->GetId() ] = xChild;
+
+ // inform listeners of new child
+ if( m_bChildrenInitialized )
+ {
+ Any aEmpty, aNew;
+ aNew <<= xChild;
+
+ aGuard.clear();
+ BroadcastAccEvent( AccessibleEventId::CHILD, aNew, aEmpty );
+ }
+}
+
+/** in this method we imply that the Reference< XAccessible > elements in the
+ vector are AccessibleBase objects !
+ */
+void AccessibleBase::RemoveChildByOId( const ObjectIdentifier& rOId )
+{
+ ClearableMutexGuard aGuard( m_aMutex );
+
+ ChildOIDMap::iterator aIt( m_aChildOIDMap.find( rOId ));
+ if( aIt == m_aChildOIDMap.end())
+ return;
+
+ Reference< XAccessible > xChild( aIt->second );
+
+ // remove from map
+ m_aChildOIDMap.erase( aIt );
+
+ // search child in vector
+ ChildListVectorType::iterator aVecIter =
+ std::find( m_aChildList.begin(), m_aChildList.end(), xChild );
+
+ OSL_ENSURE( aVecIter != m_aChildList.end(),
+ "Inconsistent ChildMap" );
+
+ // remove child from vector
+ m_aChildList.erase( aVecIter );
+ bool bInitialized = m_bChildrenInitialized;
+
+ // call listeners unguarded
+ aGuard.clear();
+
+ // inform listeners of removed child
+ if( bInitialized )
+ {
+ Any aEmpty, aOld;
+ aOld <<= xChild;
+
+ BroadcastAccEvent( AccessibleEventId::CHILD, aEmpty, aOld );
+ }
+
+ // dispose the child
+ Reference< lang::XComponent > xComp( xChild, UNO_QUERY );
+ if( xComp.is())
+ xComp->dispose();
+}
+
+awt::Point AccessibleBase::GetUpperLeftOnScreen() const
+{
+ awt::Point aResult;
+ if( m_aAccInfo.m_pParent )
+ {
+ ClearableMutexGuard aGuard( m_aMutex );
+ AccessibleBase * pParent = m_aAccInfo.m_pParent;
+ aGuard.clear();
+
+ if( pParent )
+ {
+ aResult = pParent->GetUpperLeftOnScreen();
+ }
+ else
+ OSL_FAIL( "Default position used is probably incorrect." );
+ }
+
+ return aResult;
+}
+
+void AccessibleBase::BroadcastAccEvent(
+ sal_Int16 nId,
+ const Any & rNew,
+ const Any & rOld ) const
+{
+ ClearableMutexGuard aGuard( m_aMutex );
+
+ if ( !m_nEventNotifierId )
+ return;
+ // if we don't have a client id for the notifier, then we don't have listeners, then
+ // we don't need to notify anything
+
+ // the const cast is needed, because UNO parameters are never const
+ const AccessibleEventObject aEvent(
+ const_cast< uno::XWeak * >( static_cast< const uno::XWeak * >( this )),
+ nId, rNew, rOld );
+
+ // let the notifier handle this event
+ ::comphelper::AccessibleEventNotifier::addEvent( m_nEventNotifierId, aEvent );
+
+ aGuard.clear();
+}
+
+void AccessibleBase::KillAllChildren()
+{
+ ClearableMutexGuard aGuard( m_aMutex );
+
+ // make local copy for notification, and remove all children
+ ChildListVectorType aLocalChildList;
+ aLocalChildList.swap( m_aChildList );
+ m_aChildOIDMap.clear();
+
+ aGuard.clear();
+
+ // call dispose for all children
+ // and notify listeners
+ Reference< lang::XComponent > xComp;
+ Any aEmpty, aOld;
+ for (auto const& localChild : aLocalChildList)
+ {
+ aOld <<= localChild;
+ BroadcastAccEvent( AccessibleEventId::CHILD, aEmpty, aOld );
+
+ xComp.set(localChild, UNO_QUERY);
+ if( xComp.is())
+ xComp->dispose();
+ }
+ m_bChildrenInitialized = false;
+}
+
+void AccessibleBase::SetInfo( const AccessibleElementInfo & rNewInfo )
+{
+ m_aAccInfo = rNewInfo;
+ if( m_bMayHaveChildren )
+ {
+ KillAllChildren();
+ }
+ BroadcastAccEvent( AccessibleEventId::INVALIDATE_ALL_CHILDREN, uno::Any(), uno::Any());
+}
+
+// ________ (XComponent::dispose) ________
+void SAL_CALL AccessibleBase::disposing()
+{
+ {
+ MutexGuard aGuard(m_aMutex);
+ OSL_ENSURE(!m_bIsDisposed, "dispose() called twice");
+
+ // notify disposing to all AccessibleEvent listeners asynchronous
+ if (m_nEventNotifierId)
+ {
+ ::comphelper::AccessibleEventNotifier::revokeClientNotifyDisposing(m_nEventNotifierId,
+ *this);
+ m_nEventNotifierId = 0;
+ }
+
+ // reset pointers
+ m_aAccInfo.m_pParent = nullptr;
+
+ // attach new empty state set helper to member reference
+ rtl::Reference<::utl::AccessibleStateSetHelper> pHelper = new ::utl::AccessibleStateSetHelper();
+ pHelper->AddState(AccessibleStateType::DEFUNC);
+ // release old helper and attach new one
+ m_xStateSetHelper = pHelper;
+
+ m_bIsDisposed = true;
+
+ }
+ // call listeners unguarded
+
+ if( m_bMayHaveChildren )
+ {
+ KillAllChildren();
+ }
+ else
+ OSL_ENSURE( m_aChildList.empty(), "Child list should be empty" );
+}
+
+// ________ XAccessible ________
+Reference< XAccessibleContext > SAL_CALL AccessibleBase::getAccessibleContext()
+{
+ return this;
+}
+
+// ________ AccessibleBase::XAccessibleContext ________
+sal_Int32 SAL_CALL AccessibleBase::getAccessibleChildCount()
+{
+ ClearableMutexGuard aGuard( m_aMutex );
+ if( ! m_bMayHaveChildren ||
+ m_bIsDisposed )
+ return 0;
+
+ bool bMustUpdateChildren = ( m_bMayHaveChildren &&
+ ! m_bChildrenInitialized );
+
+ aGuard.clear();
+
+ // update unguarded
+ if( bMustUpdateChildren )
+ UpdateChildren();
+
+ return ImplGetAccessibleChildCount();
+}
+
+sal_Int32 AccessibleBase::ImplGetAccessibleChildCount() const
+{
+ return m_aChildList.size();
+}
+
+Reference< XAccessible > SAL_CALL AccessibleBase::getAccessibleChild( sal_Int32 i )
+{
+ CheckDisposeState();
+ Reference< XAccessible > xResult;
+
+ ClearableMutexGuard aGuard( m_aMutex );
+ bool bMustUpdateChildren = ( m_bMayHaveChildren &&
+ ! m_bChildrenInitialized );
+
+ aGuard.clear();
+
+ if( bMustUpdateChildren )
+ UpdateChildren();
+
+ xResult.set( ImplGetAccessibleChildById( i ));
+
+ return xResult;
+}
+
+Reference< XAccessible > AccessibleBase::ImplGetAccessibleChildById( sal_Int32 i ) const
+{
+ Reference< XAccessible > xResult;
+
+ MutexGuard aGuard( m_aMutex);
+ if( ! m_bMayHaveChildren ||
+ i < 0 ||
+ o3tl::make_unsigned( i ) >= m_aChildList.size() )
+ {
+ OUString aBuf = "Index " + OUString::number( i ) + " is invalid for range [ 0, " +
+ OUString::number( m_aChildList.size() - 1 ) +
+ " ]";
+ lang::IndexOutOfBoundsException aEx( aBuf,
+ const_cast< ::cppu::OWeakObject * >(
+ static_cast< const ::cppu::OWeakObject * >( this )));
+ throw aEx;
+ }
+ else
+ xResult.set( m_aChildList[ i ] );
+
+ return xResult;
+}
+
+Reference< XAccessible > SAL_CALL AccessibleBase::getAccessibleParent()
+{
+ CheckDisposeState();
+ Reference< XAccessible > aResult;
+ if( m_aAccInfo.m_pParent )
+ aResult.set( m_aAccInfo.m_pParent );
+
+ return aResult;
+}
+
+sal_Int32 SAL_CALL AccessibleBase::getAccessibleIndexInParent()
+{
+ CheckDisposeState();
+
+ if( m_aAccInfo.m_spObjectHierarchy )
+ return m_aAccInfo.m_spObjectHierarchy->getIndexInParent( GetId() );
+ return -1;
+}
+
+sal_Int16 SAL_CALL AccessibleBase::getAccessibleRole()
+{
+ return AccessibleRole::SHAPE;
+}
+
+Reference< XAccessibleRelationSet > SAL_CALL AccessibleBase::getAccessibleRelationSet()
+{
+ Reference< XAccessibleRelationSet > aResult;
+ return aResult;
+}
+
+Reference< XAccessibleStateSet > SAL_CALL AccessibleBase::getAccessibleStateSet()
+{
+ if( ! m_bStateSetInitialized )
+ {
+ Reference< view::XSelectionSupplier > xSelSupp( GetInfo().m_xSelectionSupplier );
+ if ( xSelSupp.is() )
+ {
+ ObjectIdentifier aOID( xSelSupp->getSelection() );
+ if ( aOID.isValid() && GetId() == aOID )
+ {
+ AddState( AccessibleStateType::SELECTED );
+ AddState( AccessibleStateType::FOCUSED );
+ }
+ }
+ m_bStateSetInitialized = true;
+ }
+
+ return m_xStateSetHelper;
+}
+
+lang::Locale SAL_CALL AccessibleBase::getLocale()
+{
+ CheckDisposeState();
+
+ return Application::GetSettings().GetLanguageTag().getLocale();
+}
+
+// ________ AccessibleBase::XAccessibleComponent ________
+sal_Bool SAL_CALL AccessibleBase::containsPoint( const awt::Point& aPoint )
+{
+ awt::Rectangle aRect( getBounds() );
+
+ // contains() works with relative coordinates
+ aRect.X = 0;
+ aRect.Y = 0;
+
+ return ( aPoint.X >= aRect.X &&
+ aPoint.Y >= aRect.Y &&
+ aPoint.X < (aRect.X + aRect.Width) &&
+ aPoint.Y < (aRect.Y + aRect.Height) );
+}
+
+Reference< XAccessible > SAL_CALL AccessibleBase::getAccessibleAtPoint( const awt::Point& aPoint )
+{
+ CheckDisposeState();
+ Reference< XAccessible > aResult;
+ awt::Rectangle aRect( getBounds());
+
+ // children are positioned relative to this object, so translate bound rect
+ aRect.X = 0;
+ aRect.Y = 0;
+
+ // children must be inside the own bound rect
+ if( ( aRect.X <= aPoint.X && aPoint.X <= (aRect.X + aRect.Width) ) &&
+ ( aRect.Y <= aPoint.Y && aPoint.Y <= (aRect.Y + aRect.Height)))
+ {
+ ClearableMutexGuard aGuard( m_aMutex );
+ ChildListVectorType aLocalChildList( m_aChildList );
+ aGuard.clear();
+
+ Reference< XAccessibleComponent > aComp;
+ for (auto const& localChild : aLocalChildList)
+ {
+ aComp.set(localChild, UNO_QUERY);
+ if( aComp.is())
+ {
+ aRect = aComp->getBounds();
+ if( ( aRect.X <= aPoint.X && aPoint.X <= (aRect.X + aRect.Width) ) &&
+ ( aRect.Y <= aPoint.Y && aPoint.Y <= (aRect.Y + aRect.Height)))
+ {
+ aResult = localChild;
+ break;
+ }
+ }
+ }
+ }
+
+ return aResult;
+}
+
+awt::Rectangle SAL_CALL AccessibleBase::getBounds()
+{
+ ExplicitValueProvider *pExplicitValueProvider(
+ comphelper::getFromUnoTunnel<ExplicitValueProvider>( m_aAccInfo.m_xView ));
+ if( pExplicitValueProvider )
+ {
+ VclPtr<vcl::Window> pWindow( VCLUnoHelper::GetWindow( m_aAccInfo.m_xWindow ));
+ awt::Rectangle aLogicRect( pExplicitValueProvider->getRectangleOfObject( m_aAccInfo.m_aOID.getObjectCID() ));
+ if( pWindow )
+ {
+ tools::Rectangle aRect( aLogicRect.X, aLogicRect.Y,
+ aLogicRect.X + aLogicRect.Width,
+ aLogicRect.Y + aLogicRect.Height );
+ SolarMutexGuard aSolarGuard;
+ aRect = pWindow->LogicToPixel( aRect );
+
+ // aLogicRect is relative to the page, but we need a value relative
+ // to the parent object
+ awt::Point aParentLocOnScreen;
+ uno::Reference< XAccessibleComponent > xParent( getAccessibleParent(), uno::UNO_QUERY );
+ if( xParent.is() )
+ aParentLocOnScreen = xParent->getLocationOnScreen();
+
+ awt::Point aULOnScreen = GetUpperLeftOnScreen();
+ awt::Point aOffset( aParentLocOnScreen.X - aULOnScreen.X,
+ aParentLocOnScreen.Y - aULOnScreen.Y );
+
+ return awt::Rectangle( aRect.Left() - aOffset.X, aRect.Top() - aOffset.Y,
+ aRect.getWidth(), aRect.getHeight());
+ }
+ }
+
+ return awt::Rectangle();
+}
+
+awt::Point SAL_CALL AccessibleBase::getLocation()
+{
+ CheckDisposeState();
+ awt::Rectangle aBBox( getBounds() );
+ return awt::Point( aBBox.X, aBBox.Y );
+}
+
+awt::Point SAL_CALL AccessibleBase::getLocationOnScreen()
+{
+ CheckDisposeState();
+
+ if (AccessibleBase* pParent = m_aAccInfo.m_pParent)
+ {
+ awt::Point aLocThisRel( getLocation());
+ awt::Point aUpperLeft(pParent->getLocationOnScreen());
+
+ return awt::Point( aUpperLeft.X + aLocThisRel.X,
+ aUpperLeft.Y + aLocThisRel.Y );
+ }
+ else
+ return getLocation();
+}
+
+awt::Size SAL_CALL AccessibleBase::getSize()
+{
+ CheckDisposeState();
+ awt::Rectangle aBBox( getBounds() );
+ return awt::Size( aBBox.Width, aBBox.Height );
+}
+
+void SAL_CALL AccessibleBase::grabFocus()
+{
+ CheckDisposeState();
+
+ Reference< view::XSelectionSupplier > xSelSupp( GetInfo().m_xSelectionSupplier );
+ if ( xSelSupp.is() )
+ {
+ xSelSupp->select( GetId().getAny() );
+ }
+}
+
+sal_Int32 SAL_CALL AccessibleBase::getForeground()
+{
+ return sal_Int32(getColor( ACC_BASE_FOREGROUND ));
+}
+
+sal_Int32 SAL_CALL AccessibleBase::getBackground()
+{
+ return sal_Int32(getColor( ACC_BASE_BACKGROUND ));
+}
+
+Color AccessibleBase::getColor( eColorType eColType )
+{
+ Color nResult = COL_TRANSPARENT;
+ if( m_bAlwaysTransparent )
+ return nResult;
+
+ ObjectIdentifier aOID( m_aAccInfo.m_aOID );
+ ObjectType eType( aOID.getObjectType() );
+ Reference< beans::XPropertySet > xObjProp;
+ OUString aObjectCID = aOID.getObjectCID();
+ if( eType == OBJECTTYPE_LEGEND_ENTRY )
+ {
+ // for colors get the data series/point properties
+ std::u16string_view aParentParticle( ObjectIdentifier::getFullParentParticle( aObjectCID ));
+ aObjectCID = ObjectIdentifier::createClassifiedIdentifierForParticle( aParentParticle );
+ }
+
+ xObjProp =
+ ObjectIdentifier::getObjectPropertySet(
+ aObjectCID, m_aAccInfo.m_xChartDocument );
+ if( xObjProp.is())
+ {
+ try
+ {
+ OUString aPropName;
+ OUString aStylePropName;
+
+ switch( eType )
+ {
+ case OBJECTTYPE_LEGEND_ENTRY:
+ case OBJECTTYPE_DATA_SERIES:
+ case OBJECTTYPE_DATA_POINT:
+ if( eColType == ACC_BASE_FOREGROUND )
+ {
+ aPropName = "BorderColor";
+ aStylePropName = "BorderTransparency";
+ }
+ else
+ {
+ aPropName = "Color";
+ aStylePropName = "Transparency";
+ }
+ break;
+ default:
+ if( eColType == ACC_BASE_FOREGROUND )
+ {
+ aPropName = "LineColor";
+ aStylePropName = "LineTransparence";
+ }
+ else
+ {
+ aPropName = "FillColor";
+ aStylePropName = "FillTransparence";
+ }
+ break;
+ }
+
+ bool bTransparent = m_bAlwaysTransparent;
+ Reference< beans::XPropertySetInfo > xInfo = xObjProp->getPropertySetInfo();
+ if( xInfo.is() &&
+ xInfo->hasPropertyByName( aStylePropName ))
+ {
+ if( eColType == ACC_BASE_FOREGROUND )
+ {
+ drawing::LineStyle aLStyle;
+ if( xObjProp->getPropertyValue( aStylePropName ) >>= aLStyle )
+ bTransparent = (aLStyle == drawing::LineStyle_NONE);
+ }
+ else
+ {
+ drawing::FillStyle aFStyle;
+ if( xObjProp->getPropertyValue( aStylePropName ) >>= aFStyle )
+ bTransparent = (aFStyle == drawing::FillStyle_NONE);
+ }
+ }
+
+ if( !bTransparent &&
+ xInfo.is() &&
+ xInfo->hasPropertyByName( aPropName ))
+ {
+ xObjProp->getPropertyValue( aPropName ) >>= nResult;
+ }
+ }
+ catch( const uno::Exception & )
+ {
+ DBG_UNHANDLED_EXCEPTION("chart2");
+ }
+ }
+
+ return nResult;
+}
+
+// ________ AccessibleBase::XServiceInfo ________
+OUString SAL_CALL AccessibleBase::getImplementationName()
+{
+ return "AccessibleBase";
+}
+
+sal_Bool SAL_CALL AccessibleBase::supportsService( const OUString& ServiceName )
+{
+ return cppu::supportsService( this, ServiceName );
+}
+
+uno::Sequence< OUString > SAL_CALL AccessibleBase::getSupportedServiceNames()
+{
+ return {
+ "com.sun.star.accessibility.Accessible",
+ "com.sun.star.accessibility.AccessibleContext"
+ };
+}
+
+// ________ AccessibleBase::XEventListener ________
+void SAL_CALL AccessibleBase::disposing( const lang::EventObject& /*Source*/ )
+{
+}
+
+// ________ XAccessibleEventBroadcasters ________
+void SAL_CALL AccessibleBase::addAccessibleEventListener( const Reference< XAccessibleEventListener >& xListener )
+{
+ MutexGuard aGuard( m_aMutex );
+
+ if ( xListener.is() )
+ {
+ if ( !m_nEventNotifierId )
+ m_nEventNotifierId = ::comphelper::AccessibleEventNotifier::registerClient();
+
+ ::comphelper::AccessibleEventNotifier::addEventListener( m_nEventNotifierId, xListener );
+ }
+}
+
+void SAL_CALL AccessibleBase::removeAccessibleEventListener( const Reference< XAccessibleEventListener >& xListener )
+{
+ MutexGuard aGuard( m_aMutex );
+
+ if ( xListener.is() && m_nEventNotifierId)
+ {
+ sal_Int32 nListenerCount = ::comphelper::AccessibleEventNotifier::removeEventListener( m_nEventNotifierId, xListener );
+ if ( !nListenerCount )
+ {
+ // no listeners anymore
+ ::comphelper::AccessibleEventNotifier::revokeClient( m_nEventNotifierId );
+ m_nEventNotifierId = 0;
+ }
+ }
+}
+
+} // namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */