kaddressbook/quicksearchwidget.cpp

   1 /*
   2   This file is part of KAddressBook.
   3
   4   Copyright (c) 2009 Tobias Koenig <tokoe@kde.org>
   5
   6   This library is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Library General Public License as published by
   8   the Free Software Foundation; either version 2 of the License, or (at your
   9   option) any later version.
  10
  11   This library is distributed in the hope that it will be useful, but WITHOUT
  12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
  14   License for more details.
  15
  16   You should have received a copy of the GNU Library General Public License
  17   along with this library; see the file COPYING.LIB.  If not, write to the
  18   Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19   02110-1301, USA.
  20 */
  21
  22 #include "quicksearchwidget.h"
  23
  24 #include <QLineEdit>
  25 #include <KLocalizedString>
  26
  27 #include <QTimer>
  28 #include <QKeyEvent>
  29 #include <QVBoxLayout>
  30
  31 QuickSearchWidget::QuickSearchWidget(QWidget *parent)
  32     : QWidget(parent)
  33 {
  34     QVBoxLayout *layout = new QVBoxLayout(this);
  35     layout->setMargin(0);
  36
  37     mEdit = new QLineEdit;
  38     //If change shortcut changes it in mainwidget
  39     mEdit->setClearButtonEnabled(true);
  40     mEdit->setToolTip(
  41         i18nc("@info:tooltip", "Search contacts in list"));
  42     mEdit->setWhatsThis(
  43         i18nc("@info:whatsthis",
  44               "Start typing a search string in this box and the list of contacts "
  45               "matching that string will be displayed.  This is a quick way of searching "
  46               "for contacts of interest."));
  47     mEdit->installEventFilter(this);
  48
  49     layout->addWidget(mEdit);
  50
  51     mTimer = new QTimer(this);
  52
  53     connect(mEdit, &QLineEdit::textChanged, this, &QuickSearchWidget::resetTimer);
  54     connect(mTimer, &QTimer::timeout, this, &QuickSearchWidget::delayedTextChanged);
  55 }
  56
  57 QuickSearchWidget::~QuickSearchWidget()
  58 {
  59 }
  60
  61 QSize QuickSearchWidget::sizeHint() const
  62 {
  63     const QSize size = mEdit->sizeHint();
  64     return QSize(200, size.height());
  65 }
  66
  67 void QuickSearchWidget::slotFocusQuickSearch()
  68 {
  69     mEdit->setFocus();
  70 }
  71
  72 void QuickSearchWidget::resetTimer()
  73 {
  74     mTimer->stop();
  75     mTimer->start(500);
  76 }
  77
  78 void QuickSearchWidget::delayedTextChanged()
  79 {
  80     mTimer->stop();
  81     Q_EMIT filterStringChanged(mEdit->text());
  82 }
  83
  84 void QuickSearchWidget::keyPressEvent(QKeyEvent *event)
  85 {
  86     if (event->key() == Qt::Key_Down) {
  87         event->accept();
  88         delayedTextChanged();
  89         Q_EMIT arrowDownKeyPressed();
  90         return;
  91     }
  92
  93     QWidget::keyPressEvent(event);
  94 }
  95
  96 void QuickSearchWidget::updateQuickSearchText(const QString &text)
  97 {
  98     mEdit->setPlaceholderText(text);
  99 }