/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_svtools.hxx"
#include <svtools/editbrowsebox.hxx>
#include <com/sun/star/accessibility/XAccessible.hpp>
#include <com/sun/star/accessibility/AccessibleEventId.hpp>
#include "editbrowseboximpl.hxx"
#include <comphelper/types.hxx>
#include <toolkit/helper/vclunohelper.hxx>
#include "svtaccessiblefactory.hxx"

namespace svt
{
	using namespace com::sun::star::accessibility;
	using namespace com::sun::star::uno;
	using namespace ::com::sun::star::accessibility::AccessibleEventId;
	
// -----------------------------------------------------------------------------
Reference< XAccessible > EditBrowseBox::CreateAccessibleCheckBoxCell(long _nRow, sal_uInt16 _nColumnPos,const TriState& eState,sal_Bool _bEnabled)
{
    Reference< XAccessible > xAccessible( GetAccessible() );
	Reference< XAccessibleContext > xAccContext;
    if ( xAccessible.is() )
        xAccContext = xAccessible->getAccessibleContext();

    Reference< XAccessible > xReturn;
    if ( xAccContext.is() )
    {
        xReturn = getAccessibleFactory().createAccessibleCheckBoxCell(
            xAccContext->getAccessibleChild( ::svt::BBINDEX_TABLE ),
            *this,
            NULL,
            _nRow,
            _nColumnPos,
		    eState,
		    _bEnabled,
            sal_True
        );
    }
    return xReturn;
}
// -----------------------------------------------------------------------------
Reference< XAccessible > EditBrowseBox::CreateAccessibleCell( sal_Int32 _nRow, sal_uInt16 _nColumnPos )
{
    return BrowseBox::CreateAccessibleCell( _nRow, _nColumnPos );
}
// -----------------------------------------------------------------------------
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_aImpl->m_xActiveCell.is(), "EditBrowseBox::implCreateActiveAccessible: not to be called if the old one is still alive!" );

    if ( !m_aImpl->m_xActiveCell.is() && IsEditing() )
    {
 	    Reference< XAccessible > xCont = aController->GetWindow().GetAccessible();
 	    Reference< XAccessible > xMy = GetAccessible();
 	    if ( xMy.is() && xCont.is() )
  	    {
 		    m_aImpl->m_xActiveCell = getAccessibleFactory().createEditBrowseBoxTableCellAccess(
 			    xMy,														// parent accessible
 			    xCont,														// control accessible
 			    VCLUnoHelper::GetInterface( &aController->GetWindow() ),	// focus window (for notifications)
 			    *this,														// the browse box
 			    GetCurRow(),
 			    GetColumnPos( GetCurColumnId() )
 		    );

 		    commitBrowseBoxEvent( CHILD, makeAny( m_aImpl->m_xActiveCell ), Any() );
  	    }
    }
}

// -----------------------------------------------------------------------------
Reference< XAccessible > EditBrowseBox::CreateAccessibleControl( sal_Int32
#ifdef DBG_UTIL
_nIndex
#endif
)
{
    DBG_ASSERT( 0 == _nIndex, "EditBrowseBox::CreateAccessibleControl: invalid index!" );

    if ( isAccessibleAlive() )
    {
    	if ( !m_aImpl->m_xActiveCell.is() )
    		implCreateActiveAccessible();
    }

    return m_aImpl->m_xActiveCell;
}
// -----------------------------------------------------------------------------
Reference<XAccessible > EditBrowseBox::CreateAccessibleRowHeader( sal_Int32 _nRow )
{
    return BrowseBox::CreateAccessibleRowHeader( _nRow );
}
// -----------------------------------------------------------------------------
void EditBrowseBoxImpl::clearActiveCell()
{
	try
	{
		::comphelper::disposeComponent(m_xActiveCell);
	}
	catch(const Exception&)
	{
		OSL_ENSURE( sal_False, "EditBrowseBoxImpl::clearActiveCell: caught an exception while disposing the AccessibleCell!" );
	}

	m_xActiveCell = NULL;
}
// -----------------------------------------------------------------------------
void EditBrowseBox::GrabTableFocus()
{
	if ( aController.Is() )
		aController->GetWindow().GrabFocus();
}
//------------------------------------------------------------------------------
void EditBrowseBox::DetermineFocus( const sal_uInt16 _nGetFocusFlags )
{
	sal_Bool bFocus = sal_False;
	for (Window* pWindow = Application::GetFocusWindow();
		 pWindow && !bFocus;
		 pWindow = pWindow->GetParent())
		 bFocus = pWindow == this;

	if (bFocus != bHasFocus)
	{
		bHasFocus = bFocus;

		if ( GetBrowserFlags( ) & EBBF_SMART_TAB_TRAVEL )
		{
			if	(	bHasFocus							// we got the focus
				&&	( _nGetFocusFlags & GETFOCUS_TAB )	// using the TAB key
				)
			{
				long nRows = GetRowCount();
				sal_uInt16 nCols = ColCount();

				if ( ( nRows > 0 ) && ( nCols > 0 ) )
				{
					if ( _nGetFocusFlags & GETFOCUS_FORWARD )
					{
						if ( GetColumnId( 0 ) != 0 )
						{
							GoToRowColumnId( 0, GetColumnId( 0 ) );
						}
						else
						{	// the first column is the handle column -> not focussable
							if ( nCols > 1 )
								GoToRowColumnId( 0, GetColumnId( 1 ) );
						}
					}
					else if ( _nGetFocusFlags & GETFOCUS_BACKWARD )
					{
						GoToRowColumnId( nRows - 1, GetColumnId( nCols -1 ) );
					}
				}
			}
		}
	}
}
// -----------------------------------------------------------------------------
Rectangle EditBrowseBox::GetFieldCharacterBounds(sal_Int32 _nRow,sal_Int32 _nColumnPos,sal_Int32 _nIndex)
{
	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
// -----------------------------------------------------------------------------