/* -*- 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 <svtools/editbrowsebox.hxx>

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

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

#include <comphelper/types.hxx>

#include <svtools/strings.hrc>

#include <svtools/svtresid.hxx>

#include <toolkit/helper/vclunohelper.hxx>

#include <vcl/accessibility/AccessibleBrowseBoxCheckBoxCell.hxx>

#include <vcl/svapp.hxx>

#include <vcl/weld/Builder.hxx>

#include <tools/debug.hxx>

#include <comphelper/diagnose_ex.hxx>

namespace svt

{

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

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

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

rtl::Reference<comphelper::OAccessible>

EditBrowseBox::CreateAccessibleCheckBoxCell(sal_Int32 _nRow, sal_uInt16 _nColumnPos,

                                            const TriState& eState)

{

    rtl::Reference<comphelper::OAccessible> pAccessible = GetAccessible();

    if (!pAccessible.is())

        return {};

    return new AccessibleCheckBoxCell(pAccessible->getAccessibleChild(::vcl::BBINDEX_TABLE),

                                      *this, _nRow, _nColumnPos, eState, true);

}

sal_Int32 EditBrowseBox::GetAccessibleControlCount() const

{

    return IsEditing() ? 1 : 0;

}

void EditBrowseBox::implCreateActiveAccessible( )

{

    DBG_ASSERT( IsEditing(), "EditBrowseBox::implCreateActiveAccessible: not to be called if we're not editing currently!" );

    DBG_ASSERT(!m_pActiveCell.is(), "EditBrowseBox::implCreateActiveAccessible: not to be called "

                                    "if the old one is still alive!");

    if (m_pActiveCell.is() || !IsEditing())

        return;

    ControlBase& rControl = aController->GetWindow();

    // set accessible name based on current cell (which is the one that is being edited)

    const sal_uInt16 nCol = GetColumnPos(GetCurColumnId());

    const sal_Int32 nRow = GetCurRow();

    OUString sAccName

        = SvtResId(STR_ACC_COLUMN_NUM).replaceAll("%COLUMNNUMBER", OUString::number(nCol - 1))

          + ", " + SvtResId(STR_ACC_ROW_NUM).replaceAll("%ROWNUMBER", OUString::number(nRow));

    rControl.SetAccessibleName(sAccName);

    m_pActiveCell = rControl.GetAccessible();

    commitBrowseBoxEvent(CHILD, Any(css::uno::Reference<XAccessible>(m_pActiveCell)), Any());

}

rtl::Reference<comphelper::OAccessible> EditBrowseBox::CreateAccessibleControl(sal_Int32 _nIndex)

{

    DBG_ASSERT( 0 == _nIndex, "EditBrowseBox::CreateAccessibleControl: invalid index!" );

    if ( isAccessibleAlive() )

    {

        if (!m_pActiveCell.is())

            implCreateActiveAccessible();

    }

    return m_pActiveCell;

}

void EditBrowseBox::GrabTableFocus()

{

    if ( aController.is() )

        aController->GetWindow().GrabFocus();

}

void EditBrowseBox::DetermineFocus( const GetFocusFlags _nGetFocusFlags )

{

    bool bFocus = ControlHasFocus();

    for (vcl::Window* pWindow = Application::GetFocusWindow();

         pWindow && !bFocus;

         pWindow = pWindow->GetParent())

         bFocus = pWindow == this;

    if (bFocus == bHasFocus)

        return;

    bHasFocus = bFocus;

    if ( !(GetBrowserFlags( ) & EditBrowseBoxFlags::SMART_TAB_TRAVEL) )

        return;

    if  (   !(bHasFocus                           // we got the focus

        &&  ( _nGetFocusFlags & GetFocusFlags::Tab ))  // using the TAB key

        )

        return;

    sal_Int32 nRows = GetRowCount();

    sal_uInt16 nCols = ColCount();

    if (( nRows <= 0 ) || ( nCols <= 0 ))

        return;

    if ( _nGetFocusFlags & GetFocusFlags::Forward )

    {

        if ( GetColumnId( 0 ) != HandleColumnId )

        {

            GoToRowColumnId( 0, GetColumnId( 0 ) );

        }

        else

        {   // the first column is the handle column -> not focussable

            if ( nCols > 1 )

                GoToRowColumnId( 0, GetColumnId( 1 ) );

        }

    }

    else if ( _nGetFocusFlags & GetFocusFlags::Backward )

    {

        GoToRowColumnId( nRows - 1, GetColumnId( nCols -1 ) );

    }

}

tools::Rectangle EditBrowseBox::GetFieldCharacterBounds(sal_Int32 _nRow,sal_Int32 _nColumnPos,sal_Int32 _nIndex)

{

    tools::Rectangle aRect;

    if ( SeekRow(_nRow) )

    {

        CellController* pController = GetController(

            _nRow, GetColumnId( sal::static_int_cast< sal_uInt16 >(_nColumnPos) ) );

        if ( pController )

            aRect = pController->GetWindow().GetCharacterBounds(_nIndex);

    }

    return aRect;

}

sal_Int32 EditBrowseBox::GetFieldIndexAtPoint(sal_Int32 _nRow,sal_Int32 _nColumnPos,const Point& _rPoint)

{

    sal_Int32 nRet = -1;

    if ( SeekRow(_nRow) )

    {

        CellController* pController = GetController(

            _nRow, GetColumnId( sal::static_int_cast< sal_uInt16 >(_nColumnPos) ) );

        if ( pController )

            nRet = pController->GetWindow().GetIndexForPoint(_rPoint);

    }

    return nRet;

}

} // namespace svt

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