57 lines
2.1 KiB
C++
57 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include "gtkaccessibleregistry.hxx"
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#include "a11y.hxx"
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#include <cassert>
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std::map<css::accessibility::XAccessible*, LoAccessible*> GtkAccessibleRegistry::m_aMapping = {};
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LoAccessible* GtkAccessibleRegistry::getLOAccessible(
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css::uno::Reference<css::accessibility::XAccessible> const& xAcc, GdkDisplay* pDisplay,
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GtkAccessible* pParent)
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{
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if (!xAcc.is())
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return nullptr;
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// look for existing entry in the map
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auto entry = m_aMapping.find(xAcc.get());
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if (entry != m_aMapping.end())
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return entry->second;
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assert(pDisplay);
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if (!pParent)
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{
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// try to find parent via XAccessible hierarchy; this could be problematic
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// as it could create a separate hierarchy besides the one including native
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// GTK widgets if no object which already has its native parent set exists
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// in the a11y tree path from the root to this object
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css::uno::Reference<css::accessibility::XAccessibleContext> xContext
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= xAcc->getAccessibleContext();
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assert(xContext);
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css::uno::Reference<css::accessibility::XAccessible> xParent
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= xContext->getAccessibleParent();
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pParent = GTK_ACCESSIBLE(getLOAccessible(xParent, pDisplay, nullptr));
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assert(pParent && "No parent explicitly given and none found via the a11y hierarchy");
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}
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// create a new object and remember it in the map
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LoAccessible* pLoAccessible = lo_accessible_new(pDisplay, pParent, xAcc);
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m_aMapping.emplace(xAcc.get(), pLoAccessible);
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return pLoAccessible;
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}
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void GtkAccessibleRegistry::remove(css::uno::Reference<css::accessibility::XAccessible> const& xAcc)
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{
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assert(xAcc.is());
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m_aMapping.erase(xAcc.get());
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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