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/* -*- 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/.
*/
#include "autocmpledit.hxx"
#include <vcl/svapp.hxx>
#include <vcl/event.hxx>
AutocompleteEdit::AutocompleteEdit( vcl::Window* pParent )
: Edit( pParent )
, m_nCurrent( 0 )
{
SetAutocompleteHdl(LINK(this, AutocompleteEdit, AutoCompleteHdl_Impl));
}
void AutocompleteEdit::AddEntry( const OUString& rEntry )
{
m_aEntries.push_back( rEntry );
}
void AutocompleteEdit::ClearEntries()
{
m_aEntries.clear();
m_aMatching.clear();
}
IMPL_LINK_NOARG(AutocompleteEdit, AutoCompleteHdl_Impl, Edit&, void)
{
if( Application::AnyInput( VclInputFlags::KEYBOARD ) )
return;
OUString aCurText = GetText();
Selection aSelection( GetSelection() );
if( aSelection.Max() != aCurText.getLength() )
return;
sal_uInt16 nLen = static_cast<sal_uInt16>(aSelection.Min());
aCurText = aCurText.copy( 0, nLen );
if( aCurText.isEmpty() )
return;
if( !m_aEntries.empty() )
{
if( Match( aCurText ) )
{
m_nCurrent = 0;
SetText( m_aMatching[0] );
sal_uInt16 nNewLen = m_aMatching[0].getLength();
Selection aSel( nLen, nNewLen );
SetSelection( aSel );
}
}
}
bool AutocompleteEdit::Match( const OUString& rText )
{
bool bRet = false;
m_aMatching.clear();
for(const OUString & rEntry : m_aEntries)
{
if( rEntry.startsWithIgnoreAsciiCase( rText ) )
{
m_aMatching.push_back( rEntry );
bRet = true;
}
}
return bRet;
}
bool AutocompleteEdit::PreNotify( NotifyEvent& rNEvt )
{
if( rNEvt.GetType() == MouseNotifyEvent::KEYINPUT )
{
const KeyEvent& rEvent = *rNEvt.GetKeyEvent();
const vcl::KeyCode& rKey = rEvent.GetKeyCode();
vcl::KeyCode aCode( rKey.GetCode() );
if( ( aCode == KEY_UP || aCode == KEY_DOWN ) && !rKey.IsMod2() )
{
Selection aSelection( GetSelection() );
sal_uInt16 nLen = static_cast<sal_uInt16>(aSelection.Min());
if( !m_aMatching.empty() &&
( ( aCode == KEY_DOWN && m_nCurrent + 1 < m_aMatching.size() )
|| ( aCode == KEY_UP && m_nCurrent > 0 ) ) )
{
SetText( m_aMatching[ aCode == KEY_DOWN ? ++m_nCurrent : --m_nCurrent ] );
SetSelection( Selection( nLen, GetText().getLength() ) );
return true;
}
}
}
return Edit::PreNotify( rNEvt );
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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