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Diffstat (limited to 'sw/source/core/access/acctextframe.cxx')
| -rw-r--r-- | sw/source/core/access/acctextframe.cxx | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/sw/source/core/access/acctextframe.cxx b/sw/source/core/access/acctextframe.cxx new file mode 100644 index 000000000..928a68677 --- /dev/null +++ b/sw/source/core/access/acctextframe.cxx @@ -0,0 +1,320 @@ +/* -*- 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 <com/sun/star/accessibility/XAccessibleContext.hpp> +#include <cppuhelper/queryinterface.hxx> +#include <cppuhelper/supportsservice.hxx> +#include <vcl/svapp.hxx> +#include <sal/log.hxx> +#include <com/sun/star/accessibility/AccessibleRole.hpp> +#include <com/sun/star/accessibility/AccessibleRelation.hpp> +#include <com/sun/star/accessibility/AccessibleRelationType.hpp> +#include <com/sun/star/accessibility/XAccessibleRelationSet.hpp> +#include <com/sun/star/accessibility/AccessibleEventId.hpp> +#include <com/sun/star/lang/IndexOutOfBoundsException.hpp> +#include <frmfmt.hxx> +#include <flyfrm.hxx> +#include <accmap.hxx> +#include <unotools/accessiblerelationsethelper.hxx> +#include <hints.hxx> +#include "acctextframe.hxx" + +using namespace ::com::sun::star; +using namespace ::com::sun::star::accessibility; + +using utl::AccessibleRelationSetHelper; +using ::com::sun::star::accessibility::XAccessibleContext; + +SwAccessibleTextFrame::SwAccessibleTextFrame( + std::shared_ptr<SwAccessibleMap> const& pInitMap, + const SwFlyFrame& rFlyFrame ) : + SwAccessibleFrameBase( pInitMap, AccessibleRole::TEXT_FRAME, &rFlyFrame ), + msTitle(), + msDesc() +{ + const SwFlyFrameFormat* pFlyFrameFormat = rFlyFrame.GetFormat(); + msTitle = pFlyFrameFormat->GetObjTitle(); + + msDesc = pFlyFrameFormat->GetObjDescription(); + if ( msDesc.isEmpty() && + msTitle != GetName() ) + { + msDesc = msTitle; + } +} + +SwAccessibleTextFrame::~SwAccessibleTextFrame() +{ +} + +void SwAccessibleTextFrame::Notify(const SfxHint& rHint) +{ + if(rHint.GetId() == SfxHintId::Dying) + EndListeningAll(); + else if(auto pLegacyModifyHint = dynamic_cast<const sw::LegacyModifyHint*>(&rHint)) + { + const sal_uInt16 nWhich = pLegacyModifyHint->m_pOld ? pLegacyModifyHint->m_pOld->Which() : pLegacyModifyHint->m_pNew ? pLegacyModifyHint->m_pNew->Which() : 0; + const SwFlyFrame* pFlyFrame = static_cast<const SwFlyFrame*>(GetFrame()); + switch(nWhich) + { + // #i73249# + case RES_TITLE_CHANGED: + { + OUString sOldTitle, sNewTitle; + const SwStringMsgPoolItem *pOldItem = dynamic_cast<const SwStringMsgPoolItem*>(pLegacyModifyHint->m_pOld); + if(pOldItem) + sOldTitle = pOldItem->GetString(); + const SwStringMsgPoolItem *pNewItem = dynamic_cast<const SwStringMsgPoolItem*>(pLegacyModifyHint->m_pNew); + if(pNewItem) + sNewTitle = pNewItem->GetString(); + if(sOldTitle == sNewTitle) + break; + msTitle = sNewTitle; + AccessibleEventObject aEvent; + aEvent.EventId = AccessibleEventId::NAME_CHANGED; + aEvent.OldValue <<= sOldTitle; + aEvent.NewValue <<= msTitle; + FireAccessibleEvent( aEvent ); + + const SwFlyFrameFormat* pFlyFrameFormat = pFlyFrame->GetFormat(); + if(!pFlyFrameFormat || !pFlyFrameFormat->GetObjDescription().isEmpty()) + break; + [[fallthrough]]; + } + case RES_DESCRIPTION_CHANGED: + { + if(pFlyFrame) + { + const OUString sOldDesc(msDesc); + + const SwFlyFrameFormat* pFlyFrameFormat = pFlyFrame->GetFormat(); + const OUString& rDesc = pFlyFrameFormat->GetObjDescription(); + msDesc = rDesc; + if(msDesc.isEmpty() && msTitle != GetName()) + msDesc = msTitle; + + if(msDesc != sOldDesc) + { + AccessibleEventObject aEvent; + aEvent.EventId = AccessibleEventId::DESCRIPTION_CHANGED; + aEvent.OldValue <<= sOldDesc; + aEvent.NewValue <<= msDesc; + FireAccessibleEvent(aEvent); + } + } + } + } + } +} + +// XInterface + +css::uno::Any SAL_CALL + SwAccessibleTextFrame::queryInterface (const css::uno::Type & rType) +{ + css::uno::Any aReturn = SwAccessibleContext::queryInterface (rType); + if ( ! aReturn.hasValue()) + aReturn = ::cppu::queryInterface (rType, + static_cast< css::accessibility::XAccessibleSelection* >(this) + ); + return aReturn; +} + +void SAL_CALL + SwAccessibleTextFrame::acquire() + throw () +{ + SwAccessibleContext::acquire (); +} + +void SAL_CALL + SwAccessibleTextFrame::release() + throw () +{ + SwAccessibleContext::release (); +} + +// XAccessibleSelection + +void SAL_CALL SwAccessibleTextFrame::selectAccessibleChild( sal_Int32 ) +{ + SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::selectAccessibleChild( sal_Int32 )> - missing implementation"); +} + +sal_Bool SAL_CALL SwAccessibleTextFrame::isAccessibleChildSelected( sal_Int32 nChildIndex ) +{ + SolarMutexGuard g; + + uno::Reference<XAccessible> xAcc = getAccessibleChild( nChildIndex ); + uno::Reference<XAccessibleContext> xContext; + if( xAcc.is() ) + xContext = xAcc->getAccessibleContext(); + + if( xContext.is() ) + { + if( xContext->getAccessibleRole() == AccessibleRole::PARAGRAPH ) + { + uno::Reference< css::accessibility::XAccessibleText > + xText(xAcc, uno::UNO_QUERY); + if( xText.is() ) + { + if( xText->getSelectionStart() >= 0 ) return true; + } + } + } + + return false; +} + +void SAL_CALL SwAccessibleTextFrame::clearAccessibleSelection( ) +{ + SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::clearAccessibleSelection()> - missing implementation"); +} + +void SAL_CALL SwAccessibleTextFrame::selectAllAccessibleChildren( ) +{ + SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::selectAllAccessibleChildren()> - missing implementation"); +} + +sal_Int32 SAL_CALL SwAccessibleTextFrame::getSelectedAccessibleChildCount() +{ + sal_Int32 nCount = 0; + sal_Int32 TotalCount = getAccessibleChildCount(); + for( sal_Int32 i = 0; i < TotalCount; i++ ) + if( isAccessibleChildSelected(i) ) nCount++; + + return nCount; +} + +uno::Reference<XAccessible> SAL_CALL SwAccessibleTextFrame::getSelectedAccessibleChild( sal_Int32 nSelectedChildIndex ) +{ + SolarMutexGuard g; + + if ( nSelectedChildIndex > getSelectedAccessibleChildCount() ) + throw lang::IndexOutOfBoundsException(); + sal_Int32 i1, i2; + for( i1 = 0, i2 = 0; i1 < getAccessibleChildCount(); i1++ ) + if( isAccessibleChildSelected(i1) ) + { + if( i2 == nSelectedChildIndex ) + return getAccessibleChild( i1 ); + i2++; + } + return uno::Reference<XAccessible>(); +} + +void SAL_CALL SwAccessibleTextFrame::deselectAccessibleChild( sal_Int32 ) +{ + SAL_WARN("sw.a11y", "<SwAccessibleTextFrame::selectAllAccessibleChildren( sal_Int32 )> - missing implementation"); +} + +// #i73249# +OUString SAL_CALL SwAccessibleTextFrame::getAccessibleName() +{ + SolarMutexGuard aGuard; + + ThrowIfDisposed(); + + if ( !msTitle.isEmpty() ) + { + return msTitle; + } + + return SwAccessibleFrameBase::getAccessibleName(); +} + +OUString SAL_CALL SwAccessibleTextFrame::getAccessibleDescription() +{ + SolarMutexGuard aGuard; + + ThrowIfDisposed(); + + return msDesc; + +} + +OUString SAL_CALL SwAccessibleTextFrame::getImplementationName() +{ + return "com.sun.star.comp.Writer.SwAccessibleTextFrameView"; +} + +sal_Bool SAL_CALL SwAccessibleTextFrame::supportsService(const OUString& sTestServiceName) +{ + return cppu::supportsService(this, sTestServiceName); +} + +uno::Sequence< OUString > SAL_CALL SwAccessibleTextFrame::getSupportedServiceNames() +{ + return { "com.sun.star.text.AccessibleTextFrameView", sAccessibleServiceName }; +} + +uno::Sequence< sal_Int8 > SAL_CALL SwAccessibleTextFrame::getImplementationId() +{ + return css::uno::Sequence<sal_Int8>(); +} + +// XAccessibleRelationSet + +SwFlyFrame* SwAccessibleTextFrame::getFlyFrame() const +{ + SwFlyFrame* pFlyFrame = nullptr; + + const SwFrame* pFrame = GetFrame(); + assert(pFrame); + if( pFrame->IsFlyFrame() ) + { + pFlyFrame = static_cast<SwFlyFrame*>( const_cast<SwFrame*>( pFrame ) ); + } + + return pFlyFrame; +} + +AccessibleRelation SwAccessibleTextFrame::makeRelation( sal_Int16 nType, const SwFlyFrame* pFrame ) +{ + uno::Sequence<uno::Reference<XInterface> > aSequence { GetMap()->GetContext( pFrame ) }; + return AccessibleRelation( nType, aSequence ); +} + +uno::Reference<XAccessibleRelationSet> SAL_CALL SwAccessibleTextFrame::getAccessibleRelationSet( ) +{ + SolarMutexGuard aGuard; + + ThrowIfDisposed(); + + // get the frame, and insert prev/next relations into helper + + AccessibleRelationSetHelper* pHelper = new AccessibleRelationSetHelper(); + + SwFlyFrame* pFlyFrame = getFlyFrame(); + assert(pFlyFrame); + + const SwFlyFrame* pPrevFrame = pFlyFrame->GetPrevLink(); + if( pPrevFrame != nullptr ) + pHelper->AddRelation( makeRelation( + AccessibleRelationType::CONTENT_FLOWS_FROM, pPrevFrame ) ); + + const SwFlyFrame* pNextFrame = pFlyFrame->GetNextLink(); + if( pNextFrame != nullptr ) + pHelper->AddRelation( makeRelation( + AccessibleRelationType::CONTENT_FLOWS_TO, pNextFrame ) ); + + return pHelper; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |