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/**************************************************************
*
* 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_vcl.hxx"
#include "vcl/quickselectionengine.hxx"
#include "vcl/event.hxx"
#include "vcl/timer.hxx"
#include "vcl/i18nhelp.hxx"
#include "vcl/svapp.hxx"
#include <boost/optional.hpp>
//........................................................................
namespace vcl
{
//........................................................................
//====================================================================
//= QuickSelectionEngine_Data
//====================================================================
struct QuickSelectionEngine_Data
{
ISearchableStringList& rEntryList;
String sCurrentSearchString;
::boost::optional< sal_Unicode > aSingleSearchChar;
Timer aSearchTimeout;
QuickSelectionEngine_Data( ISearchableStringList& _entryList )
:rEntryList( _entryList )
,sCurrentSearchString()
,aSingleSearchChar()
,aSearchTimeout()
{
aSearchTimeout.SetTimeout( 2500 );
aSearchTimeout.SetTimeoutHdl( LINK( this, QuickSelectionEngine_Data, SearchStringTimeout ) );
}
~QuickSelectionEngine_Data()
{
aSearchTimeout.Stop();
}
DECL_LINK( SearchStringTimeout, Timer* );
};
//--------------------------------------------------------------------
namespace
{
static void lcl_reset( QuickSelectionEngine_Data& _data )
{
_data.sCurrentSearchString.Erase();
_data.aSingleSearchChar.reset();
_data.aSearchTimeout.Stop();
}
}
//--------------------------------------------------------------------
IMPL_LINK( QuickSelectionEngine_Data, SearchStringTimeout, Timer*, /*EMPTYARG*/ )
{
lcl_reset( *this );
return 1;
}
//--------------------------------------------------------------------
static StringEntryIdentifier findMatchingEntry( const String& _searchString, QuickSelectionEngine_Data& _engineData )
{
const vcl::I18nHelper& rI18nHelper = Application::GetSettings().GetLocaleI18nHelper();
// TODO: do we really need the Window's settings here? The original code used it ...
String sEntryText;
// get the "current + 1" entry
StringEntryIdentifier pSearchEntry = _engineData.rEntryList.CurrentEntry( sEntryText );
if ( pSearchEntry )
pSearchEntry = _engineData.rEntryList.NextEntry( pSearchEntry, sEntryText );
// loop 'til we find another matching entry
StringEntryIdentifier pStartedWith = pSearchEntry;
while ( pSearchEntry )
{
if ( rI18nHelper.MatchString( _searchString, sEntryText ) != 0 )
break;
pSearchEntry = _engineData.rEntryList.NextEntry( pSearchEntry, sEntryText );
if ( pSearchEntry == pStartedWith )
pSearchEntry = NULL;
}
return pSearchEntry;
}
//====================================================================
//= QuickSelectionEngine
//====================================================================
//--------------------------------------------------------------------
QuickSelectionEngine::QuickSelectionEngine( ISearchableStringList& _entryList )
:m_pData( new QuickSelectionEngine_Data( _entryList ) )
{
}
//--------------------------------------------------------------------
QuickSelectionEngine::~QuickSelectionEngine()
{
}
//--------------------------------------------------------------------
bool QuickSelectionEngine::HandleKeyEvent( const KeyEvent& _keyEvent )
{
xub_Unicode c = _keyEvent.GetCharCode();
if ( ( c >= 32 ) && ( c != 127 ) && !_keyEvent.GetKeyCode().IsMod2() )
{
m_pData->sCurrentSearchString += c;
OSL_TRACE( "QuickSelectionEngine::HandleKeyEvent: searching for %s", ByteString( m_pData->sCurrentSearchString, RTL_TEXTENCODING_UTF8 ).GetBuffer() );
if ( m_pData->sCurrentSearchString.Len() == 1 )
{ // first character in the search -> remmeber
m_pData->aSingleSearchChar.reset( c );
}
else if ( m_pData->sCurrentSearchString.Len() > 1 )
{
if ( !!m_pData->aSingleSearchChar && ( *m_pData->aSingleSearchChar != c ) )
// we already have a "single char", but the current one is different -> reset
m_pData->aSingleSearchChar.reset();
}
XubString aSearchTemp( m_pData->sCurrentSearchString );
StringEntryIdentifier pMatchingEntry = findMatchingEntry( aSearchTemp, *m_pData );
OSL_TRACE( "QuickSelectionEngine::HandleKeyEvent: found %p", pMatchingEntry );
if ( !pMatchingEntry && ( aSearchTemp.Len() > 1 ) && !!m_pData->aSingleSearchChar )
{
// if there's only one letter in the search string, use a different search mode
aSearchTemp = *m_pData->aSingleSearchChar;
pMatchingEntry = findMatchingEntry( aSearchTemp, *m_pData );
}
if ( pMatchingEntry )
{
m_pData->rEntryList.SelectEntry( pMatchingEntry );
m_pData->aSearchTimeout.Start();
}
else
{
lcl_reset( *m_pData );
}
return true;
}
return false;
}
//--------------------------------------------------------------------
void QuickSelectionEngine::Reset()
{
lcl_reset( *m_pData );
}
//........................................................................
} // namespace vcl
//........................................................................
|
