/* -*- 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 <accessibility/vclxaccessibleheaderbar.hxx>

#include <accessibility/vclxaccessibleheaderbaritem.hxx>

#include <comphelper/accessiblecontexthelper.hxx>

#include <o3tl/safeint.hxx>

#include <vcl/headbar.hxx>

#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>

#include <com/sun/star/accessibility/AccessibleRole.hpp>

#include <vcl/svapp.hxx>

using namespace ::com::sun::star;

using namespace ::com::sun::star::uno;

using namespace ::com::sun::star::lang;

using namespace ::com::sun::star::accessibility;

VCLXAccessibleHeaderBar::VCLXAccessibleHeaderBar(HeaderBar* pHeaderBar)

    : VCLXAccessibleComponent(pHeaderBar)

{

    m_pHeadBar = pHeaderBar;

}

VCLXAccessibleHeaderBar::~VCLXAccessibleHeaderBar() {}

// XServiceInfo

OUString VCLXAccessibleHeaderBar::getImplementationName()

{

    return u"com.sun.star.comp.toolkit.AccessibleHeaderBar"_ustr;

}

Sequence<OUString> VCLXAccessibleHeaderBar::getSupportedServiceNames()

{

    return { u"com.sun.star.awt.AccessibleHeaderBar"_ustr };

}

// =======XAccessibleContext=======

sal_Int64 SAL_CALL VCLXAccessibleHeaderBar::getAccessibleChildCount()

{

    SolarMutexGuard g;

    sal_Int64 nCount = 0;

    if (m_pHeadBar)

        nCount = m_pHeadBar->GetItemCount();

    return nCount;

}

css::uno::Reference<css::accessibility::XAccessible>

    SAL_CALL VCLXAccessibleHeaderBar::getAccessibleChild(sal_Int64 i)

{

    SolarMutexGuard g;

    if (i < 0 || i >= getAccessibleChildCount())

        throw IndexOutOfBoundsException();

    rtl::Reference<VCLXAccessibleHeaderBarItem> xChild;

    // search for the child

    if (o3tl::make_unsigned(i) >= m_aAccessibleChildren.size())

        xChild = CreateChild(i);

    else

    {

        xChild = m_aAccessibleChildren[i];

        if (!xChild.is())

            xChild = CreateChild(i);

    }

    return xChild;

}

sal_Int16 SAL_CALL VCLXAccessibleHeaderBar::getAccessibleRole()

{

    return css::accessibility::AccessibleRole::LIST;

}

void SAL_CALL VCLXAccessibleHeaderBar::disposing()

{

    SolarMutexGuard g;

    ListItems().swap(m_aAccessibleChildren);

    VCLXAccessibleComponent::disposing();

}

rtl::Reference<VCLXAccessibleHeaderBarItem> VCLXAccessibleHeaderBar::CreateChild(sal_Int32 i)

{

    rtl::Reference<VCLXAccessibleHeaderBarItem> xChild;

    sal_uInt16 nPos = static_cast<sal_uInt16>(i);

    if (nPos >= m_aAccessibleChildren.size())

    {

        m_aAccessibleChildren.resize(nPos + 1);

        // insert into the container

        xChild = new VCLXAccessibleHeaderBarItem(m_pHeadBar, i);

        m_aAccessibleChildren[nPos] = xChild.get();

    }

    else

    {

        xChild = m_aAccessibleChildren[nPos];

        // check if position is empty and can be used else we have to adjust all entries behind this

        if (!xChild.is())

        {

            xChild = new VCLXAccessibleHeaderBarItem(m_pHeadBar, i);

            m_aAccessibleChildren[nPos] = xChild.get();

        }

    }

    return xChild;

}

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