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/***************************************************************************
* Copyright (C) 2011 by Francesco Nwokeka <francesco.nwokeka@gmail.com> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
***************************************************************************/
#include "chat-search-bar.h"
#include <KAction>
#include <KColorScheme>
#include <KLineEdit>
#include <KLocale>
#include <KPushButton>
#include <QCheckBox>
#include <QDebug>
#include <QHBoxLayout>
#include <QToolButton>
#include <QtGui/QKeyEvent>
ChatSearchBar::ChatSearchBar(QWidget *parent)
: QWidget(parent)
, m_searchInput(new KLineEdit(this))
, m_closeButton(new QToolButton(this))
, m_nextButton(new KPushButton(KIcon(QLatin1String("go-down-search")), i18nc("Next search result" ,"&Next"), this))
, m_previousButton(new KPushButton(KIcon(QLatin1String("go-up-search")), i18nc("Previous search result" ,"&Previous"), this))
, m_caseSensitive(false)
{
// close button setup
m_closeButton->setAutoRaise(true);
m_closeButton->setIcon(KIcon(QLatin1String("dialog-close")));
connect(m_closeButton, SIGNAL(clicked(bool)), this, SLOT(toggleView(bool)));
// search line setup
m_searchInput->setPlaceholderText(i18n("Insert search text..."));
// search arrows, start disabled
enableSearchButtons(false);
connect(m_nextButton, SIGNAL(clicked()), this, SLOT(onNextButtonClicked()));
connect(m_previousButton, SIGNAL(clicked()), this, SLOT(onPreviousButtonClicked()));
// options for search criteria
QCheckBox *caseSensitiveAction = new QCheckBox(i18n("Case sensitive"), this);
connect(caseSensitiveAction, SIGNAL(clicked(bool)), this, SLOT(toggleCaseSensitive(bool)));
// text changed signal
connect(m_searchInput, SIGNAL(textChanged(QString)), this, SLOT(textChanged(QString)));
QHBoxLayout *layout = new QHBoxLayout(this);
layout->setContentsMargins(2, 0, 2, 0);
layout->addWidget(m_closeButton);
layout->setAlignment(m_closeButton, Qt::AlignLeft | Qt::AlignTop);
layout->addWidget(m_searchInput);
layout->addWidget(m_nextButton);
layout->addWidget(m_previousButton);
layout->addWidget(caseSensitiveAction);
setLayout(layout);
// start hidden
hide();
}
ChatSearchBar::~ChatSearchBar()
{
}
void ChatSearchBar::enableSearchButtons(bool enable)
{
m_nextButton->setEnabled(enable);
m_previousButton->setEnabled(enable);
Q_EMIT enableSearchButtonsSignal(enable);
}
QWebPage::FindFlags ChatSearchBar::findFlags()
{
QWebPage::FindFlags flags;
flags |= QWebPage::FindWrapsAroundDocument;
if(m_caseSensitive) {
flags |= QWebPage::FindCaseSensitively;
}
return flags;
}
KLineEdit *ChatSearchBar::searchBar() const
{
return m_searchInput;
}
void ChatSearchBar::onNextButtonClicked()
{
// no need to call this if search bar is hidden
if(isVisible()) {
Q_EMIT findNextSignal(m_searchInput->text(), findFlags());
}
}
void ChatSearchBar::onPreviousButtonClicked()
{
// no need to call this if search bar is hidden
if(isVisible()) {
Q_EMIT findPreviousSignal(m_searchInput->text(), findFlags());
}
}
void ChatSearchBar::onSearchTextComplete(bool found)
{
if(found || m_searchInput->text().isEmpty()) {
KColorScheme scheme(QPalette::Active, KColorScheme::View);
QColor background = scheme.background(KColorScheme::NormalBackground).color();
if(m_searchInput->palette().color(QPalette::Base) != background) {
QPalette p = m_searchInput->palette();
p.setColor(QPalette::Base, background);
m_searchInput->setPalette(p);
}
} else {
KColorScheme scheme(QPalette::Active, KColorScheme::Window);
QColor background = scheme.foreground(KColorScheme::ActiveText).color();
// check for empty text as well. It's not to be considered as "text not found"
if(m_searchInput->palette().color(QPalette::Base) != background && !m_searchInput->text().isEmpty()) {
QPalette p = m_searchInput->palette();
p.setColor(QPalette::Base, background);
m_searchInput->setPalette(p);
}
}
}
void ChatSearchBar::toggleView(bool toggle)
{
if(!toggle) {
m_searchInput->clear();
hide();
} else {
show();
m_searchInput->setFocus();
}
}
bool ChatSearchBar::event(QEvent *e)
{
if (e->type() == QEvent::ShortcutOverride && static_cast<QKeyEvent*>(e)->key() == Qt::Key_Escape) {
if (isVisible()) {
setVisible(false);
e->accept();
return true;
}
}
return false;
}
void ChatSearchBar::textChanged(const QString& text)
{
// enable/disable next and previous buttons
if (!m_searchInput->text().isEmpty()) {
enableSearchButtons(true);
} else {
enableSearchButtons(false);
}
Q_EMIT findTextSignal(text, findFlags());
}
void ChatSearchBar::toggleCaseSensitive(bool toggle)
{
m_caseSensitive = toggle;
Q_EMIT flagsChangedSignal(m_searchInput->text(), findFlags());
}
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