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-rw-r--r--kwebapp/websnap.cpp166
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diff --git a/kwebapp/websnap.cpp b/kwebapp/websnap.cpp
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--- a/kwebapp/websnap.cpp
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-/* ============================================================
-*
-* This file is a part of the rekonq project
-*
-* Copyright (C) 2009 Nokia Corporation <qt-info@nokia.com>
-* Copyright (C) 2009-2012 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"
-
-// KDE Includes
-#include <KStandardDirs>
-
-// Qt Includes
-#include <QSize>
-#include <QFile>
-
-#include <QCryptographicHash>
-
-#include <QPainter>
-#include <QAction>
-
-#include <QWebFrame>
-#include <QWebSettings>
-
-
-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)));
-
- QMetaObject::invokeMethod(this, "load", Qt::QueuedConnection);
-}
-
-
-WebSnap::~WebSnap()
-{
- m_page.action(QWebPage::Stop)->trigger();
- m_page.deleteLater();
-}
-
-
-void WebSnap::load()
-{
- m_page.mainFrame()->load(m_url);
-}
-
-
-
-QPixmap WebSnap::render(const QWebPage &page, int w, int h)
-{
- // create the page image
- QPixmap pageImage = QPixmap(w, h);
- pageImage.fill(Qt::transparent);
-
- // render it
- QPainter p(&pageImage);
- page.mainFrame()->render(&p, QWebFrame::ContentsLayer);
- p.end();
-
- return pageImage;
-}
-
-
-// NOTE
-// to render page preview in a safe way, you CANNOT work with scrollbars!
-// In fact, disabling temporarily them DOES NOT work without reloading a page
-// that is something we CANNOT do.
-QPixmap WebSnap::renderPagePreview(const QWebPage &page, int w, int h)
-{
- // store actual viewportsize
- QSize oldSize = page.viewportSize();
-
- // prepare page
- // NOTE: I saw some sites with strange CMS and with absurd content size width (eg: 8584553)
- // This usually leads setViewportSize to crash :(
- // So, ensure renderWidth is no more than 2000.
- int renderWidth = page.mainFrame()->contentsSize().width();
- if (renderWidth > 2000)
- renderWidth = 2000;
- int renderHeight = renderWidth * ((0.0 + h) / w);
-
- page.setViewportSize(QSize(renderWidth, renderHeight));
-
- // consider scrollbars and render the page
- bool verticalScrollBarActive = !page.mainFrame()->scrollBarGeometry(Qt::Vertical).isEmpty();
- if (verticalScrollBarActive)
- renderWidth -= 15;
-
- bool horizontalScrollBarActive = !page.mainFrame()->scrollBarGeometry(Qt::Horizontal).isEmpty();
- if (horizontalScrollBarActive)
- renderHeight -= 15;
-
- QPixmap pageImage = WebSnap::render(page, renderWidth, renderHeight);
-
- // resize image
- pageImage = pageImage.scaled(w, h, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
-
- // restore page state
- page.setViewportSize(oldSize);
-
- return pageImage;
-}
-
-
-QString WebSnap::imagePathFromUrl(const KUrl &url)
-{
- QUrl temp = QUrl(url.url());
- QByteArray name = temp.toEncoded(QUrl::RemoveScheme | QUrl::RemoveUserInfo | QUrl::StripTrailingSlash);
-
- QByteArray hashedName = QCryptographicHash::hash(name, QCryptographicHash::Md5).toHex();
-
- return KStandardDirs::locateLocal("cache", QString("thumbs/") + hashedName + ".png", true);
-}
-
-
-void WebSnap::saveResult(bool ok)
-{
- if (ok)
- {
- QPixmap image = renderPagePreview(m_page, defaultWidth, defaultHeight);
- QString path = imagePathFromUrl(m_url);
- QFile::remove(path);
- image.save(path);
- }
-
- emit snapDone(ok);
-
- this->deleteLater();
-}
-
-
-bool WebSnap::existsImage(const KUrl &u)
-{
- return QFile::exists(imagePathFromUrl(u));
-}