/* -*- 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 <osl/diagnose.h>

#include <svtools/brwbox.hxx>

#include <vcl/accessibility/AccessibleBrowseBox.hxx>

#include <vcl/accessibility/AccessibleBrowseBoxHeaderCell.hxx>

#include <vcl/accessibility/AccessibleBrowseBoxObjType.hxx>

#include <vcl/accessibility/AccessibleBrowseBoxTableCell.hxx>

#include <sal/log.hxx>

#include <tools/debug.hxx>

#include <tools/multisel.hxx>

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

// Accessibility ==============================================================

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

using ::com::sun::star::accessibility::XAccessible;

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

Reference<XAccessible> BrowseBox::getAccessibleHeaderCell(BrowseBox::THeaderCellMap& _raHeaderCells,

                                                          sal_Int32 _nPos,

                                                          AccessibleBrowseBoxObjType _eType,

                                                          const Reference<XAccessible>& _rParent)

{

    Reference<XAccessible> xRet;

    BrowseBox::THeaderCellMap::iterator aFind = _raHeaderCells.find(_nPos);

    if (aFind == _raHeaderCells.end())

    {

        Reference<XAccessible> xAccessible

            = new AccessibleBrowseBoxHeaderCell(_nPos, _rParent, *this, _eType);

        aFind = _raHeaderCells.emplace(_nPos, xAccessible).first;

    }

    if (aFind != _raHeaderCells.end())

        xRet = aFind->second;

    return xRet;

}

Reference<XAccessible> BrowseBox::getAccessibleHeaderBar(AccessibleBrowseBoxObjType _eObjType)

{

    if (m_xAccessible && m_xAccessible->isAlive())

        return m_xAccessible->getHeaderBar(_eObjType);

    return nullptr;

}

Reference<XAccessible> BrowseBox::getAccessibleTable()

{

    if (m_xAccessible && m_xAccessible->isAlive())

        return m_xAccessible->getTable();

    return nullptr;

}

rtl::Reference<comphelper::OAccessible> BrowseBox::CreateAccessible()

{

    if (!m_xAccessible)

    {

        rtl::Reference<comphelper::OAccessible> pAccParent = GetAccessibleParent();

        if (pAccParent.is())

            m_xAccessible = new AccessibleBrowseBox(pAccParent, *this);

    }

    return m_xAccessible;

}

// Children -------------------------------------------------------------------

rtl::Reference<comphelper::OAccessible> BrowseBox::CreateAccessibleCell(sal_Int32 _nRow,

                                                                        sal_uInt16 _nColumnPos)

{

    // BBINDEX_TABLE must be the table

    OSL_ENSURE(m_xAccessible, "Invalid call: Accessible is null");

    return new AccessibleBrowseBoxTableCell(getAccessibleTable(), *this, _nRow, _nColumnPos);

}

Reference< XAccessible > BrowseBox::CreateAccessibleRowHeader( sal_Int32 _nRow )

{

    return getAccessibleHeaderCell(

        m_aRowHeaderCellMap, _nRow, AccessibleBrowseBoxObjType::RowHeaderCell,

        getAccessibleHeaderBar(AccessibleBrowseBoxObjType::RowHeaderBar));

}

Reference< XAccessible > BrowseBox::CreateAccessibleColumnHeader( sal_uInt16 _nColumnPos )

{

    return getAccessibleHeaderCell(

        m_aColHeaderCellMap, _nColumnPos, AccessibleBrowseBoxObjType::ColumnHeaderCell,

        getAccessibleHeaderBar(AccessibleBrowseBoxObjType::ColumnHeaderBar));

}

// Conversions ----------------------------------------------------------------

bool BrowseBox::ConvertPointToCellAddress(

        sal_Int32& rnRow, sal_uInt16& rnColumnPos, const Point& rPoint )

{

    //! TODO has to be checked

    rnRow = GetRowAtYPosPixel(rPoint.Y());

    rnColumnPos = GetColumnAtXPosPixel(rPoint.X());

    return rnRow != BROWSER_INVALIDID && rnColumnPos != BROWSER_INVALIDID;

}

bool BrowseBox::ConvertPointToRowHeader( sal_Int32& rnRow, const Point& rPoint )

{

    rnRow = GetRowAtYPosPixel(rPoint.Y());

    //  sal_uInt16 nColumnId = GetColumnAtXPosPixel(rPoint.X());

    return rnRow != BROWSER_INVALIDID;// && nColumnId == 0;

}

bool BrowseBox::ConvertPointToColumnHeader( sal_uInt16& _rnColumnPos, const Point& _rPoint )

{

    _rnColumnPos = GetColumnAtXPosPixel(_rPoint.X());

    return _rnColumnPos != BROWSER_INVALIDID;

}

bool BrowseBox::ConvertPointToControlIndex( sal_Int32& _rnIndex, const Point& _rPoint )

{

    //! TODO has to be checked

    sal_Int32 nRow = 0;

    sal_uInt16 nColumn = 0;

    bool bRet = ConvertPointToCellAddress(nRow,nColumn,_rPoint);

    if ( bRet )

        _rnIndex = nRow * ColCount() + nColumn;

    return bRet;

}

// Object data and state ------------------------------------------------------

OUString BrowseBox::GetAccessibleObjectName( AccessibleBrowseBoxObjType eObjType,sal_Int32 _nPosition) const

{

    OUString aRetText;

    switch( eObjType )

    {

        case AccessibleBrowseBoxObjType::BrowseBox:

            aRetText = "BrowseBox";

            break;

        case AccessibleBrowseBoxObjType::Table:

            aRetText = "Table";

            break;

        case AccessibleBrowseBoxObjType::RowHeaderBar:

            aRetText = "RowHeaderBar";

            break;

        case AccessibleBrowseBoxObjType::ColumnHeaderBar:

            aRetText = "ColumnHeaderBar";

            break;

        case AccessibleBrowseBoxObjType::TableCell:

            if( ColCount() !=0 && GetRowCount()!=0)

            {

                sal_Int32 columnId = _nPosition % ColCount() +1;

                aRetText = GetColumnDescription( sal_Int16( columnId ) );

                sal_Int32 rowId = _nPosition / GetRowCount() + 1;

                aRetText += OUString::number(rowId);

            }

            else

                aRetText = "TableCell";

#if OSL_DEBUG_LEVEL > 0

            aRetText += " ["

                        + OUString::number(GetCurRow())

                        + ","

                        + OUString::number(sal_Int32(GetCurColumnId()))

                        + "]";

#endif

            break;

        case AccessibleBrowseBoxObjType::RowHeaderCell:

            {

                sal_Int32 rowId = _nPosition + 1;

                aRetText = OUString::number( rowId );

            }

#if OSL_DEBUG_LEVEL > 0

            aRetText += " ["

                        + OUString::number(GetCurRow())

                        + ","

                        + OUString::number(sal_Int32(GetCurColumnId()))

                        + "]";

#endif

            break;

        case AccessibleBrowseBoxObjType::ColumnHeaderCell:

            aRetText = GetColumnDescription( sal_Int16( _nPosition ) );

#if OSL_DEBUG_LEVEL > 0

            aRetText += " ["

                        + OUString::number(GetCurRow())

                        + ","

                        + OUString::number(sal_Int32(GetCurColumnId()))

                        + "]";

#endif

            break;

        default:

            OSL_FAIL("BrowseBox::GetAccessibleName: invalid enum!");

    }

    return aRetText;

}

OUString BrowseBox::GetAccessibleObjectDescription( AccessibleBrowseBoxObjType eObjType,sal_Int32 ) const

{

    OUString aRetText;

    switch( eObjType )

    {

        case AccessibleBrowseBoxObjType::BrowseBox:

            aRetText = "BrowseBox description";

            break;

        case AccessibleBrowseBoxObjType::Table:

            //  aRetText = "TABLE description";

            break;

        case AccessibleBrowseBoxObjType::RowHeaderBar:

            //  aRetText = "ROWHEADERBAR description";

            break;

        case AccessibleBrowseBoxObjType::ColumnHeaderBar:

            //  aRetText = "COLUMNHEADERBAR description";

            break;

        case AccessibleBrowseBoxObjType::TableCell:

            //  aRetText = "TABLECELL description";

            break;

        case AccessibleBrowseBoxObjType::RowHeaderCell:

            //  aRetText = "ROWHEADERCELL description";

            break;

        case AccessibleBrowseBoxObjType::ColumnHeaderCell:

            //  aRetText = "COLUMNHEADERCELL description";

            break;

        case AccessibleBrowseBoxObjType::CheckBoxCell:

            break;

    }

    return aRetText;

}

OUString BrowseBox::GetRowDescription( sal_Int32 ) const

{

    return OUString();

}

OUString BrowseBox::GetColumnDescription( sal_uInt16 _nColumn ) const

{

    return GetColumnTitle( GetColumnId( _nColumn ) );

}

void BrowseBox::FillAccessibleStateSet(

        sal_Int64& rStateSet,

        AccessibleBrowseBoxObjType eObjType ) const

{

    switch( eObjType )

    {

        case AccessibleBrowseBoxObjType::BrowseBox:

        case AccessibleBrowseBoxObjType::Table:

            rStateSet |= AccessibleStateType::FOCUSABLE;

            if ( HasFocus() )

                rStateSet |= AccessibleStateType::FOCUSED;

            if ( IsActive() )

                rStateSet |= AccessibleStateType::ACTIVE;

            if ( GetUpdateMode() )

                rStateSet |= AccessibleStateType::EDITABLE;

            if ( IsEnabled() )

            {

                rStateSet |= AccessibleStateType::ENABLED;

                rStateSet |= AccessibleStateType::SENSITIVE;

            }

            if ( IsReallyVisible() )

                rStateSet |= AccessibleStateType::VISIBLE;

            if ( eObjType == AccessibleBrowseBoxObjType::Table )

                rStateSet |= AccessibleStateType::MANAGES_DESCENDANTS;

            break;

        case AccessibleBrowseBoxObjType::RowHeaderBar:

            rStateSet |= AccessibleStateType::FOCUSABLE;

            rStateSet |= AccessibleStateType::VISIBLE;

            if ( GetSelectRowCount() )

                rStateSet |= AccessibleStateType::FOCUSED;

            rStateSet |= AccessibleStateType::MANAGES_DESCENDANTS;

            break;

        case AccessibleBrowseBoxObjType::ColumnHeaderBar:

            rStateSet |= AccessibleStateType::FOCUSABLE;

            rStateSet |= AccessibleStateType::VISIBLE;

            if ( GetSelectColumnCount() )

                rStateSet |= AccessibleStateType::FOCUSED;

            rStateSet |= AccessibleStateType::MANAGES_DESCENDANTS;

            break;

        case AccessibleBrowseBoxObjType::TableCell:

            {

                sal_Int32 nRow = GetCurRow();

                sal_uInt16 nColumn = GetCurColumnId();

                if ( IsFieldVisible(nRow,nColumn) )

                    rStateSet |= AccessibleStateType::VISIBLE;

                if ( !IsFrozen( nColumn ) )

                    rStateSet |= AccessibleStateType::FOCUSABLE;

                rStateSet |= AccessibleStateType::TRANSIENT;

            }

            break;

        case AccessibleBrowseBoxObjType::RowHeaderCell:

        case AccessibleBrowseBoxObjType::ColumnHeaderCell:

        case AccessibleBrowseBoxObjType::CheckBoxCell:

            OSL_FAIL("Illegal call here!");

            break;

    }

}

void BrowseBox::FillAccessibleStateSetForCell( sal_Int64& _rStateSet,

                                               sal_Int32 _nRow, sal_uInt16 _nColumnPos ) const

{

    //! TODO check if the state is valid for table cells

    if ( IsCellVisible( _nRow, _nColumnPos ) )

        _rStateSet |= AccessibleStateType::VISIBLE;

    if ( GetCurrRow() == _nRow && GetCurrColumn() == _nColumnPos )

        _rStateSet |= AccessibleStateType::FOCUSED;

    else // only transient when column is not focused

        _rStateSet |= AccessibleStateType::TRANSIENT;

}

void BrowseBox::GrabTableFocus()

{

    GrabFocus();

}

OUString BrowseBox::GetCellText(sal_Int32, sal_uInt16 ) const

{

    SAL_WARN("svtools", "This method has to be implemented by the derived classes! BUG!!");

    return OUString();

}

void BrowseBox::commitHeaderBarEvent(sal_Int16 nEventId,

        const Any& rNewValue, const Any& rOldValue, bool _bColumnHeaderBar )

{

    if ( isAccessibleAlive() )

        m_xAccessible->commitHeaderBarEvent(nEventId, rNewValue, rOldValue, _bColumnHeaderBar);

}

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

{

    if ( isAccessibleAlive() )

        m_xAccessible->commitTableEvent(_nEventId, _rNewValue, _rOldValue);

}

void BrowseBox::commitBrowseBoxEvent( sal_Int16 _nEventId, const Any& _rNewValue, const Any& _rOldValue )

{

    if ( isAccessibleAlive() )

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

}

bool BrowseBox::isAccessibleAlive() const { return m_xAccessible && m_xAccessible->isAlive(); }

// IAccessibleTableProvider

sal_Int32 BrowseBox::GetCurrRow() const

{

    return GetCurRow();

}

sal_uInt16 BrowseBox::GetCurrColumn() const

{

    return GetColumnPos( GetCurColumnId() );

}

bool BrowseBox::HasRowHeader() const

{

    return ( GetColumnId( 0 ) == HandleColumnId ); // HandleColumn == RowHeader

}

bool BrowseBox::GoToCell( sal_Int32 _nRow, sal_uInt16 _nColumn )

{

    return GoToRowColumnId( _nRow, GetColumnId( _nColumn ) );

}

void BrowseBox::SelectColumn( sal_uInt16 _nColumn, bool _bSelect )

{

    SelectColumnPos( _nColumn, _bSelect );

}

bool BrowseBox::IsColumnSelected( sal_Int32 _nColumn ) const

{

    return ( pColSel && (0 <= _nColumn) && (_nColumn <= 0xFFF) ) &&

        pColSel->IsSelected( static_cast< sal_uInt16 >( _nColumn ) );

}

sal_Int32 BrowseBox::GetSelectedRowCount() const

{

    return GetSelectRowCount();

}

sal_Int32 BrowseBox::GetSelectedColumnCount() const

{

    const MultiSelection* pColumnSel = GetColumnSelection();

    return pColumnSel ? pColumnSel->GetSelectCount() : 0;

}

void BrowseBox::GetAllSelectedRows( css::uno::Sequence< sal_Int32 >& _rRows ) const

{

    sal_Int32 nCount = GetSelectRowCount();

    if( nCount )

    {

        _rRows.realloc( nCount );

        auto pRows = _rRows.getArray();

        pRows[ 0 ] = const_cast< BrowseBox* >( this )->FirstSelectedRow();

        for( sal_Int32 nIndex = 1; nIndex < nCount; ++nIndex )

            pRows[ nIndex ] = const_cast< BrowseBox* >( this )->NextSelectedRow();

        DBG_ASSERT( const_cast< BrowseBox* >( this )->NextSelectedRow() == BROWSER_ENDOFSELECTION,

                    "BrowseBox::GetAllSelectedRows - too many selected rows found" );

    }

}

void BrowseBox::GetAllSelectedColumns( css::uno::Sequence< sal_Int32 >& _rColumns ) const

{

    const MultiSelection* pColumnSel = GetColumnSelection();

    sal_Int32 nCount = GetSelectedColumnCount();

    if( !(pColumnSel && nCount) )

        return;

    _rColumns.realloc( nCount );

    auto pColumns = _rColumns.getArray();

    sal_Int32 nIndex = 0;

    const size_t nRangeCount = pColumnSel->GetRangeCount();

    for( size_t nRange = 0; nRange < nRangeCount; ++nRange )

    {

        const Range& rRange = pColumnSel->GetRange( nRange );

        // loop has to include aRange.Max()

        for( sal_Int32 nCol = rRange.Min(); nCol <= static_cast<sal_Int32>(rRange.Max()); ++nCol )

        {

            DBG_ASSERT( nIndex < nCount,

                "GetAllSelectedColumns - range overflow" );

            pColumns[ nIndex ] = nCol;

            ++nIndex;

        }

    }

}

bool BrowseBox::IsCellVisible( sal_Int32 _nRow, sal_uInt16 _nColumnPos ) const

{

    return IsFieldVisible( _nRow, GetColumnId( _nColumnPos ) );

}

OUString BrowseBox::GetAccessibleCellText(sal_Int32 _nRow, sal_uInt16 _nColPos) const

{

    return GetCellText( _nRow, GetColumnId( _nColPos ) );

}

bool BrowseBox::GetGlyphBoundRects( const Point& rOrigin, const OUString& rStr, int nIndex, int nLen, std::vector< tools::Rectangle >& rVector )

{

    return GetOutDev()->GetGlyphBoundRects( rOrigin, rStr, nIndex, nLen, rVector );

}

tools::Rectangle BrowseBox::GetWindowExtentsRelative(const vcl::Window& rRelativeWindow) const

{

    return Control::GetWindowExtentsRelative( rRelativeWindow );

}

void BrowseBox::GrabFocus()

{

    Control::GrabFocus();

}

rtl::Reference<comphelper::OAccessible> BrowseBox::GetAccessible()

{

    return Control::GetAccessible();

}

vcl::Window* BrowseBox::GetAccessibleParentWindow() const

{

    return Control::GetAccessibleParentWindow();

}

vcl::Window* BrowseBox::GetWindowInstance()

{

    return this;

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */