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libreoffice/sw/source/core/txtnode/OnlineAccessibilityCheck.cxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

336 lines
8.9 KiB
C++

/* -*- 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 <OnlineAccessibilityCheck.hxx>
#include <doc.hxx>
#include <pam.hxx>
#include <txtfrm.hxx>
#include <sfx2/bindings.hxx>
#include <sfx2/dispatch.hxx>
#include <docsh.hxx>
#include <cmdid.h>
#include <officecfg/Office/Common.hxx>
#include <unotools/configmgr.hxx>
namespace sw
{
WeakNodeContainer::WeakNodeContainer(SwNode* pNode)
: m_pNode(pNode)
{
if (m_pNode)
{
auto* pBroadcast = dynamic_cast<sw::BroadcastingModify*>(m_pNode);
if (pBroadcast)
{
EndListeningAll();
StartListening(pBroadcast->GetNotifier());
}
else
{
m_pNode = nullptr;
}
}
}
WeakNodeContainer::~WeakNodeContainer() { EndListeningAll(); }
bool WeakNodeContainer::isAlive()
{
if (!m_pNode)
return false;
if (!HasBroadcaster())
m_pNode = nullptr;
return m_pNode;
}
SwNode* WeakNodeContainer::getNode()
{
if (isAlive())
return m_pNode;
return nullptr;
}
OnlineAccessibilityCheck::OnlineAccessibilityCheck(SwDoc& rDocument)
: m_rDocument(rDocument)
, m_aAccessibilityCheck(&m_rDocument)
, m_nPreviousNodeIndex(-1)
, m_nAccessibilityIssues(0)
, m_bInitialCheck(false)
, m_bOnlineCheckStatus(
!comphelper::IsFuzzing()
? officecfg::Office::Common::Accessibility::OnlineAccessibilityCheck::get()
: false)
{
}
void OnlineAccessibilityCheck::updateNodeStatus(SwNode* pNode, bool bIssueObjectNameChanged)
{
if (!pNode->IsContentNode() && !pNode->IsTableNode())
return;
m_nAccessibilityIssues = 0;
if (bIssueObjectNameChanged)
return;
auto it = m_aNodes.find(pNode);
if (it == m_aNodes.end())
{
m_aNodes.emplace(pNode, std::make_unique<WeakNodeContainer>(pNode));
}
for (auto iterator = m_aNodes.begin(); iterator != m_aNodes.end();)
{
auto& pWeakContentNode = iterator->second;
if (pWeakContentNode->isAlive())
{
auto& rStatus = pWeakContentNode->getNode()->getAccessibilityCheckStatus();
if (rStatus.pCollection)
{
m_nAccessibilityIssues += rStatus.pCollection->getIssues().size();
++iterator;
}
else
{
iterator = m_aNodes.erase(iterator);
}
}
else
{
iterator = m_aNodes.erase(iterator);
}
}
}
void OnlineAccessibilityCheck::updateStatusbar()
{
if (SwDocShell* pShell = m_rDocument.GetDocShell())
{
if (SfxDispatcher* pDispatcher = pShell->GetDispatcher())
{
if (SfxBindings* pBindings = pDispatcher->GetBindings())
{
pBindings->Invalidate(FN_STAT_ACCESSIBILITY_CHECK);
}
}
}
}
void OnlineAccessibilityCheck::runAccessibilityCheck(SwNode* pNode)
{
m_aAccessibilityCheck.getIssueCollection().clear();
m_aAccessibilityCheck.checkNode(pNode);
for (SwFrameFormat* const& pFrameFormat : pNode->GetAnchoredFlys())
{
m_aAccessibilityCheck.checkObject(pNode, *pFrameFormat);
}
auto aCollection = m_aAccessibilityCheck.getIssueCollection();
pNode->getAccessibilityCheckStatus().pCollection
= std::make_unique<sfx::AccessibilityIssueCollection>(aCollection);
}
void OnlineAccessibilityCheck::runDocumentLevelAccessibilityCheck()
{
m_aAccessibilityCheck.getIssueCollection().clear();
m_aAccessibilityCheck.checkDocumentProperties();
auto aCollection = m_aAccessibilityCheck.getIssueCollection();
m_pDocumentAccessibilityIssues
= std::make_unique<sfx::AccessibilityIssueCollection>(aCollection);
}
void OnlineAccessibilityCheck::initialCheck()
{
if (m_bInitialCheck)
return;
runDocumentLevelAccessibilityCheck();
auto const& pNodes = m_rDocument.GetNodes();
for (SwNodeOffset n(0); n < pNodes.Count(); ++n)
{
SwNode* pNode = pNodes[n];
if (pNode)
{
runAccessibilityCheck(pNode);
updateNodeStatus(pNode);
}
}
updateStatusbar();
m_bInitialCheck = true;
}
void OnlineAccessibilityCheck::updateCheckerActivity()
{
bool bOnlineCheckStatus
= !comphelper::IsFuzzing()
&& officecfg::Office::Common::Accessibility::OnlineAccessibilityCheck::get();
if (bOnlineCheckStatus != m_bOnlineCheckStatus)
{
m_pPreviousNode.reset();
m_nPreviousNodeIndex = SwNodeOffset(-1);
m_bInitialCheck = false; // force initial check
if (!bOnlineCheckStatus)
{
clearAccessibilityIssuesFromAllNodes(); // cleanup all accessibility check data on nodes
m_nAccessibilityIssues = -1;
}
else
{
m_nAccessibilityIssues = 0;
}
m_bOnlineCheckStatus = bOnlineCheckStatus;
updateStatusbar();
}
}
void OnlineAccessibilityCheck::update(const SwPosition& rNewPos)
{
updateCheckerActivity();
if (!m_bOnlineCheckStatus)
return;
initialCheck();
lookForPreviousNodeAndUpdate(rNewPos);
}
void OnlineAccessibilityCheck::lookForPreviousNodeAndUpdate(const SwPosition& rNewPos)
{
auto nCurrenNodeIndex = rNewPos.GetNodeIndex();
auto* pCurrentNode = &rNewPos.GetNode();
if (!pCurrentNode->IsContentNode() && !pCurrentNode->IsTableNode())
return;
auto pCurrentWeak = std::make_unique<WeakNodeContainer>(pCurrentNode);
if (!pCurrentWeak->isAlive())
return;
// Check if previous node was deleted
if (!m_pPreviousNode || !m_pPreviousNode->isAlive())
{
m_pPreviousNode = std::move(pCurrentWeak);
m_nPreviousNodeIndex = nCurrenNodeIndex;
return;
}
// Check if node index changed
if (nCurrenNodeIndex == m_nPreviousNodeIndex)
return;
// Check if previous node is valid
if (m_nPreviousNodeIndex < SwNodeOffset(0)
|| m_nPreviousNodeIndex >= pCurrentNode->GetNodes().Count())
{
m_pPreviousNode = std::move(pCurrentWeak);
m_nPreviousNodeIndex = nCurrenNodeIndex;
return;
}
// Run the document level Accessibility Check
runDocumentLevelAccessibilityCheck();
// Get the real previous node from index
SwNode* pNode = pCurrentNode->GetNodes()[m_nPreviousNodeIndex];
if (pNode && (pNode->IsContentNode() || pNode->IsTableNode()))
{
runAccessibilityCheck(pNode);
updateNodeStatus(pNode);
// Assign previous node and index
m_pPreviousNode = std::move(pCurrentWeak);
m_nPreviousNodeIndex = nCurrenNodeIndex;
}
else
{
runAccessibilityCheck(pCurrentNode);
updateNodeStatus(pCurrentNode);
m_pPreviousNode.reset();
m_nPreviousNodeIndex = SwNodeOffset(-1);
}
updateStatusbar();
}
void OnlineAccessibilityCheck::clearAccessibilityIssuesFromAllNodes()
{
auto const& pNodes = m_rDocument.GetNodes();
for (SwNodeOffset n(0); n < pNodes.Count(); ++n)
{
SwNode* pNode = pNodes[n];
if (pNode)
{
pNode->getAccessibilityCheckStatus().reset();
}
}
m_aNodes.clear();
updateStatusbar();
}
void OnlineAccessibilityCheck::resetAndQueue(SwNode* pNode, bool bIssueObjectNameChanged)
{
if (comphelper::IsFuzzing())
return;
bool bOnlineCheckStatus
= officecfg::Office::Common::Accessibility::OnlineAccessibilityCheck::get();
if (!bOnlineCheckStatus)
return;
pNode->getAccessibilityCheckStatus().reset();
m_aNodes.erase(pNode);
if (&pNode->GetNodes() == &m_rDocument.GetNodes()) // don't add undo array
{
runAccessibilityCheck(pNode);
updateNodeStatus(pNode, bIssueObjectNameChanged);
}
updateStatusbar();
}
void OnlineAccessibilityCheck::resetAndQueueDocumentLevel()
{
if (comphelper::IsFuzzing())
return;
bool bOnlineCheckStatus
= officecfg::Office::Common::Accessibility::OnlineAccessibilityCheck::get();
if (!bOnlineCheckStatus)
return;
runDocumentLevelAccessibilityCheck();
updateStatusbar();
}
} // end sw
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */