/* -*- 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/awt/XVclWindowPeer.hdl>

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

#include <vcl/accessibility/AccessibleBrowseBox.hxx>

#include <vcl/accessibility/AccessibleBrowseBoxHeaderBar.hxx>

#include <vcl/accessibility/AccessibleBrowseBoxTable.hxx>

#include <vcl/accessibletableprovider.hxx>

#include <vcl/unohelp.hxx>

#include <sal/types.h>

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

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

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

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

// Ctor/Dtor/disposing

AccessibleBrowseBox::AccessibleBrowseBox(

    const css::uno::Reference<css::accessibility::XAccessible>& _rxParent,

    ::vcl::IAccessibleTableProvider& _rBrowseBox)

    : AccessibleBrowseBoxBase(_rxParent, _rBrowseBox, nullptr,

                              AccessibleBrowseBoxObjType::BrowseBox)

{

    m_xFocusWindow.set(mpBrowseBox->GetWindowInstance()->GetComponentInterface(), css::uno::UNO_QUERY);

}

AccessibleBrowseBox::~AccessibleBrowseBox()

{

}

void SAL_CALL AccessibleBrowseBox::disposing()

{

    ::osl::MutexGuard aGuard( getMutex() );

    if ( mxTable.is() )

    {

        mxTable->dispose();

        mxTable.clear();

    }

    if ( mxRowHeaderBar.is() )

    {

        mxRowHeaderBar->dispose();

        mxRowHeaderBar.clear();

    }

    if ( mxColumnHeaderBar.is() )

    {

        mxColumnHeaderBar->dispose();

        mxColumnHeaderBar.clear();

    }

    AccessibleBrowseBoxBase::disposing();

}

// css::accessibility::XAccessibleContext

sal_Int64 SAL_CALL AccessibleBrowseBox::getAccessibleChildCount()

{

    SolarMethodGuard aGuard(getMutex());

    ensureIsAlive();

    return vcl::BBINDEX_FIRSTCONTROL + mpBrowseBox->GetAccessibleControlCount();

}

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

AccessibleBrowseBox::getAccessibleChild( sal_Int64 nChildIndex )

{

    SolarMethodGuard aGuard(getMutex());

    ensureIsAlive();

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

        throw lang::IndexOutOfBoundsException();

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

    if (nChildIndex < vcl::BBINDEX_FIRSTCONTROL)

        xRet = implGetFixedChild(nChildIndex);

    else

    {

        // additional controls

        nChildIndex -= vcl::BBINDEX_FIRSTCONTROL;

        if (nChildIndex < mpBrowseBox->GetAccessibleControlCount())

            xRet = mpBrowseBox->CreateAccessibleControl(nChildIndex);

    }

    if( !xRet.is() )

        throw lang::IndexOutOfBoundsException();

    return xRet;

}

// css::accessibility::XAccessibleComponent

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

AccessibleBrowseBox::getAccessibleAtPoint( const awt::Point& rPoint )

{

    SolarMethodGuard aGuard(getMutex());

    ensureIsAlive();

    sal_Int32 nIndex = 0;

    if (mpBrowseBox->ConvertPointToControlIndex(nIndex, vcl::unohelper::ConvertToVCLPoint(rPoint)))

        return mpBrowseBox->CreateAccessibleControl(nIndex);

    // try whether point is in one of the fixed children

    // (table, header bars, corner control)

    Point aPoint(vcl::unohelper::ConvertToVCLPoint(rPoint));

    for (nIndex = 0; nIndex < vcl::BBINDEX_FIRSTCONTROL; ++nIndex)

    {

        css::uno::Reference< css::accessibility::XAccessible > xCurrChild(implGetFixedChild(nIndex));

        css::uno::Reference< css::accessibility::XAccessibleComponent >

            xCurrChildComp( xCurrChild, uno::UNO_QUERY );

        if (xCurrChildComp.is()

            && vcl::unohelper::ConvertToVCLRect(xCurrChildComp->getBounds()).Contains(aPoint))

            return xCurrChild;

    }

    return nullptr;

}

void SAL_CALL AccessibleBrowseBox::grabFocus()

{

    SolarMethodGuard aGuard(getMutex());

    ensureIsAlive();

    mpBrowseBox->GrabFocus();

}

// XServiceInfo

OUString SAL_CALL AccessibleBrowseBox::getImplementationName()

{

    return u"com.sun.star.comp.svtools.AccessibleBrowseBox"_ustr;

}

// internal virtual methods

tools::Rectangle AccessibleBrowseBox::implGetBoundingBox()

{

    vcl::Window* pParent = mpBrowseBox->GetAccessibleParentWindow();

    assert(pParent && "implGetBoundingBox - missing parent window");

    return mpBrowseBox->GetWindowExtentsRelative( *pParent );

}

// internal helper methods

css::uno::Reference< css::accessibility::XAccessible > AccessibleBrowseBox::implGetTable()

{

    if( !mxTable.is() )

    {

        mxTable = createAccessibleTable();

    }

    return mxTable;

}

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

AccessibleBrowseBox::implGetHeaderBar(AccessibleBrowseBoxObjType eObjType)

{

    if( eObjType == AccessibleBrowseBoxObjType::RowHeaderBar )

    {

        if (!mxRowHeaderBar.is())

            mxRowHeaderBar = new AccessibleBrowseBoxHeaderBar(this, *mpBrowseBox, eObjType);

        return mxRowHeaderBar;

    }

    else if( eObjType == AccessibleBrowseBoxObjType::ColumnHeaderBar )

    {

        if (!mxColumnHeaderBar.is())

            mxColumnHeaderBar = new AccessibleBrowseBoxHeaderBar(this, *mpBrowseBox, eObjType);

        return mxColumnHeaderBar;

    }

    return css::uno::Reference<css::accessibility::XAccessible>();

}

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

AccessibleBrowseBox::implGetFixedChild( sal_Int64 nChildIndex )

{

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

    switch( nChildIndex )

    {

        case vcl::BBINDEX_COLUMNHEADERBAR:

            xRet = implGetHeaderBar( AccessibleBrowseBoxObjType::ColumnHeaderBar );

        break;

        case vcl::BBINDEX_ROWHEADERBAR:

            xRet = implGetHeaderBar( AccessibleBrowseBoxObjType::RowHeaderBar );

        break;

        case vcl::BBINDEX_TABLE:

            xRet = implGetTable();

        break;

    }

    return xRet;

}

rtl::Reference<AccessibleBrowseBoxTable> AccessibleBrowseBox::createAccessibleTable()

{

    return new AccessibleBrowseBoxTable(this, *mpBrowseBox);

}

void AccessibleBrowseBox::commitTableEvent(sal_Int16 _nEventId,const Any& _rNewValue,const Any& _rOldValue)

{

    if ( mxTable.is() )

    {

        mxTable->commitEvent(_nEventId,_rNewValue,_rOldValue);

    }

}

void AccessibleBrowseBox::commitHeaderBarEvent( sal_Int16 _nEventId,

                                                const Any& _rNewValue,

                                                const Any& _rOldValue,bool _bColumnHeaderBar)

{

    rtl::Reference< AccessibleBrowseBoxHeaderBar >& xHeaderBar = _bColumnHeaderBar ? mxColumnHeaderBar : mxRowHeaderBar;

    if ( xHeaderBar.is() )

        xHeaderBar->commitEvent(_nEventId,_rNewValue,_rOldValue);

}

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