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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include <svl/pickerhistory.hxx>
#include <svl/pickerhistoryaccess.hxx>
#include <cppuhelper/weakref.hxx>
#include <vector>
//.........................................................................
namespace svt
{
//.........................................................................
using namespace ::com::sun::star::uno;
namespace
{
typedef ::com::sun::star::uno::WeakReference< XInterface > InterfaceAdapter;
typedef ::std::vector< InterfaceAdapter > InterfaceArray;
// ----------------------------------------------------------------
InterfaceArray& getFolderPickerHistory()
{
static InterfaceArray s_aHistory;
return s_aHistory;
}
// ----------------------------------------------------------------
InterfaceArray& getFilePickerHistory()
{
static InterfaceArray s_aHistory;
return s_aHistory;
}
// ----------------------------------------------------------------
void implPushBackPicker( InterfaceArray& _rHistory, const Reference< XInterface >& _rxPicker )
{
if ( !_rxPicker.is() )
return;
//=============================================================
// first, check which of the objects we hold in s_aHistory can be removed
{
InterfaceArray aCleanedHistory;
for ( InterfaceArray::const_iterator aLoop = _rHistory.begin();
aLoop != _rHistory.end();
++aLoop
)
{
Reference< XInterface > xCurrent( aLoop->get() );
if ( xCurrent.is() )
{
if ( aCleanedHistory.empty() )
// make some room, assume that all interfaces (from here on) are valie
aCleanedHistory.reserve( _rHistory.size() - ( aLoop - _rHistory.begin() ) );
aCleanedHistory.push_back( InterfaceAdapter( xCurrent ) );
}
}
_rHistory.swap( aCleanedHistory );
}
//=============================================================
// then push_back the picker
_rHistory.push_back( InterfaceAdapter( _rxPicker ) );
}
//-----------------------------------------------------------------
Reference< XInterface > implGetTopMostPicker( const InterfaceArray& _rHistory )
{
Reference< XInterface > xTopMostAlive;
//=============================================================
// search the first picker which is still alive ...
for ( InterfaceArray::const_reverse_iterator aLoop = _rHistory.rbegin();
( aLoop != _rHistory.rend() ) && !xTopMostAlive.is();
++aLoop
)
{
xTopMostAlive = aLoop->get();
}
return xTopMostAlive;
}
}
//---------------------------------------------------------------------
Reference< XInterface > GetTopMostFolderPicker( )
{
return implGetTopMostPicker( getFolderPickerHistory() );
}
//---------------------------------------------------------------------
Reference< XInterface > GetTopMostFilePicker( )
{
return implGetTopMostPicker( getFilePickerHistory() );
}
//---------------------------------------------------------------------
void addFolderPicker( const Reference< XInterface >& _rxPicker )
{
implPushBackPicker( getFolderPickerHistory(), _rxPicker );
}
//---------------------------------------------------------------------
void addFilePicker( const Reference< XInterface >& _rxPicker )
{
implPushBackPicker( getFilePickerHistory(), _rxPicker );
}
//.........................................................................
} // namespace svt
//.........................................................................
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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