104 lines
2.8 KiB
C++
104 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <vcl/event.hxx>
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#include "autocmpledit.hxx"
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AutocompleteEdit::AutocompleteEdit(std::unique_ptr<weld::Entry> xEntry)
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: m_xEntry(std::move(xEntry))
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, m_aChangedIdle("fpicker::AutocompleteEdit m_aChangedIdle")
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, m_nLastCharCode(0)
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{
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m_xEntry->connect_changed(LINK(this, AutocompleteEdit, ChangedHdl));
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m_xEntry->connect_key_press(LINK(this, AutocompleteEdit, KeyInputHdl));
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m_aChangedIdle.SetInvokeHandler(LINK(this, AutocompleteEdit, TryAutoComplete));
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}
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IMPL_LINK(AutocompleteEdit, KeyInputHdl, const KeyEvent&, rKEvt, bool)
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{
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m_nLastCharCode = rKEvt.GetKeyCode().GetCode();
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return false;
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}
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IMPL_LINK_NOARG(AutocompleteEdit, ChangedHdl, weld::Entry&, void)
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{
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m_aChangeHdl.Call(*m_xEntry);
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switch (m_nLastCharCode)
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{
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case css::awt::Key::DELETE_WORD_BACKWARD:
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case css::awt::Key::DELETE_WORD_FORWARD:
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case css::awt::Key::DELETE_TO_BEGIN_OF_LINE:
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case css::awt::Key::DELETE_TO_END_OF_LINE:
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case KEY_BACKSPACE:
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case KEY_DELETE:
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m_aChangedIdle.Stop();
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break;
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default:
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m_aChangedIdle.Start(); //launch this to happen on idle after cursor position will have been set
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break;
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}
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}
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void AutocompleteEdit::AddEntry( const OUString& rEntry )
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{
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m_aEntries.push_back( rEntry );
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}
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void AutocompleteEdit::ClearEntries()
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{
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m_aEntries.clear();
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m_aMatching.clear();
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}
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IMPL_LINK_NOARG(AutocompleteEdit, TryAutoComplete, Timer *, void)
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{
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OUString aCurText = m_xEntry->get_text();
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int nStartPos, nEndPos;
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m_xEntry->get_selection_bounds(nStartPos, nEndPos);
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if (std::max(nStartPos, nEndPos) != aCurText.getLength())
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return;
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auto nLen = std::min(nStartPos, nEndPos);
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aCurText = aCurText.copy( 0, nLen );
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if( aCurText.isEmpty() )
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return;
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if( !m_aEntries.empty() )
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{
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if( Match( aCurText ) )
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{
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m_xEntry->set_text(m_aMatching[0]);
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auto nNewLen = m_aMatching[0].getLength();
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m_xEntry->select_region(nLen, nNewLen);
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}
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}
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}
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bool AutocompleteEdit::Match( std::u16string_view rText )
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{
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bool bRet = false;
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m_aMatching.clear();
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for(const OUString & rEntry : m_aEntries)
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{
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if( rEntry.startsWithIgnoreAsciiCase( rText ) )
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{
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m_aMatching.push_back( rEntry );
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bRet = true;
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}
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}
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return bRet;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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