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/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2009 Nokia Corporation <qt-info@nokia.com>
* Copyright (C) 2009-2010 by Andrea Diamantini <adjam7 at gmail dot com>
* Copyright (C) 2010 by Matthieu Gicquel <matgic78 at gmail dot 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) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* ============================================================ */
// Self Includes
#include "websnap.h"
#include "websnap.moc"
// Local Includes
#include "newtabpage.h"
// KDE Includes
#include <KDebug>
#include <KStandardDirs>
// Qt Includes
#include <QSize>
#include <QWebFrame>
#include <QWebSettings>
#include <QPainter>
#include <QTimer>
#include <QFile>
WebSnap::WebSnap(const KUrl& url, QObject *parent)
: QObject(parent)
, m_url(url)
{
// this to not register websnap history
m_page.settings()->setAttribute(QWebSettings::PrivateBrowsingEnabled, true);
// this to not let this page open other windows
m_page.settings()->setAttribute(QWebSettings::PluginsEnabled, false);
m_page.settings()->setAttribute(QWebSettings::JavascriptEnabled, false);
connect(&m_page, SIGNAL(loadFinished(bool)), this, SLOT(saveResult(bool)));
QTimer::singleShot(0, this, SLOT(load()));
}
void WebSnap::load()
{
m_page.mainFrame()->load(m_url);
}
// NOTE please, be careful modifying this.
// You are playing with fire..
QPixmap WebSnap::renderPreview(const QWebPage &page, int w, int h)
{
// NOTE
// it seems no way to enable/disable scrollbars in new QtWebKit's
// and this is affecting tabbed browsing
// prepare page
QSize oldSize = page.viewportSize();
// page.mainFrame()->setScrollBarPolicy(Qt::Vertical, Qt::ScrollBarAlwaysOff);
// page.mainFrame()->setScrollBarPolicy(Qt::Horizontal, Qt::ScrollBarAlwaysOff);
// find the best size
QSize size;
int width = page.mainFrame()->contentsSize().width();
if (width < 640)
{
width = 640;
}
size = QSize(width,width*((0.0+h)/w));
page.setViewportSize(size);
// create the page image
QImage pageImage = QImage(size, QImage::Format_ARGB32_Premultiplied);
pageImage.fill(Qt::transparent);
// render it
QPainter p(&pageImage);
page.mainFrame()->render(&p);
p.end();
pageImage = pageImage.scaled(w, h, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
// restore page settings
// page.mainFrame()->setScrollBarPolicy(Qt::Horizontal, Qt::ScrollBarAsNeeded);
// page.mainFrame()->setScrollBarPolicy(Qt::Vertical, Qt::ScrollBarAsNeeded);
page.setViewportSize(oldSize);
QPixmap pm = QPixmap::fromImage(pageImage);
KUrl url( page.mainFrame()->url() );
kDebug() << "saving preview";
QString path = imagePathFromUrl(url);
QFile::remove( path );
pm.save( path );
return pm;
}
QString WebSnap::imagePathFromUrl(const KUrl &url)
{
QUrl temp = QUrl( url.url() );
QString name = temp.toString( QUrl::RemoveScheme | QUrl::RemoveUserInfo | QUrl::StripTrailingSlash );
// TODO learn Regular Expressions :)
// and implement something better here..
name.remove('/');
name.remove('&');
name.remove('.');
name.remove('-');
name.remove('_');
name.remove('?');
name.remove('=');
name.remove('+');
return KStandardDirs::locateLocal("cache", QString("thumbs/") + name + ".png", true);
}
void WebSnap::saveResult(bool ok)
{
if (ok)
{
QPixmap image = renderPreview(m_page, WIDTH, HEIGHT);
QString path = imagePathFromUrl( m_url);
QFile::remove( path );
image.save( path );
}
emit snapDone(ok);
kDebug() << "SAVE RESULTS: " << ok << " URL: " << m_url;
this->deleteLater();
}
bool WebSnap::existsImage(const KUrl &u)
{
return QFile::exists( imagePathFromUrl(u) );
}
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