quicksearchwidget.cpp

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/*
  This file is part of KAddressBook.

  Copyright (c) 2009 Tobias Koenig <tokoe@kde.org>

  This library is free software; you can redistribute it and/or modify it
  under the terms of the GNU Library General Public License as published by
  the Free Software Foundation; either version 2 of the License, or (at your
  option) any later version.

  This library 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 Library General Public
  License for more details.

  You should have received a copy of the GNU Library General Public License
  along with this library; see the file COPYING.LIB.  If not, write to the
  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  02110-1301, USA.
*/

#include "quicksearchwidget.h"

#include <KLineEdit>
#include <KLocale>

#include <QtCore/QTimer>
#include <QKeyEvent>
#include <QVBoxLayout>

QuickSearchWidget::QuickSearchWidget( QWidget *parent )
  : QWidget( parent )
{
  QVBoxLayout *layout = new QVBoxLayout( this );
  layout->setMargin( 0 );

  mEdit = new KLineEdit;
  mEdit->setClickMessage( i18nc( "@label Search contacts in list", "Search" ) );
  mEdit->setClearButtonShown( true );
  mEdit->setToolTip(
    i18nc( "@info:tooltip", "Search contacts in list" ) );
  mEdit->setWhatsThis(
    i18nc( "@info:whatsthis",
           "Start typing a search string in this box and the list of contacts "
           "matching that string will be displayed.  This is a quick way of searching "
           "for contacts of interest." ) );
  mEdit->installEventFilter( this );

  layout->addWidget( mEdit );

  mTimer = new QTimer( this );

  connect( mEdit, SIGNAL(textChanged(QString)), SLOT(resetTimer()) );
  connect( mTimer, SIGNAL(timeout()), SLOT(delayedTextChanged()) );
}

QuickSearchWidget::~QuickSearchWidget()
{
}

QSize QuickSearchWidget::sizeHint() const
{
  const QSize size = mEdit->sizeHint();
  return QSize( 200, size.height() );
}

void QuickSearchWidget::resetTimer()
{
  mTimer->stop();
  mTimer->start( 500 );
}

void QuickSearchWidget::delayedTextChanged()
{
  mTimer->stop();
  emit filterStringChanged( mEdit->text() );
}

void QuickSearchWidget::keyPressEvent( QKeyEvent *event )
{
  if ( event->key() == Qt::Key_Down ) {
    event->accept();
    delayedTextChanged();
    emit arrowDownKeyPressed();
    return;
  }

  QWidget::keyPressEvent( event );
}

#include "quicksearchwidget.moc"