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/* This file is part of the KDE libraries
Copyright (C) 2000 Malte Starostik <malte@kde.org>
Copyright (C) 2006 Roberto Cappuccio <roberto.cappuccio@gmail.com>
Copyright (C) 2011 Dawit Alemayehu <adawit@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 "htmlcreator.h"
#include <QUrl>
#include <QImage>
#include <QPainter>
#include <QWebEnginePage>
#include <QWebEngineSettings>
extern "C"
{
Q_DECL_EXPORT ThumbCreator *new_creator()
{
return new HTMLCreator;
}
}
HTMLCreator::HTMLCreator()
: m_loadedOk(true), m_page(nullptr)
{
}
HTMLCreator::~HTMLCreator()
{
delete m_page;
}
bool HTMLCreator::create(const QString &path, int width, int height, QImage &img)
{
if (!m_page)
{
m_page = new QWebEnginePage;
connect(m_page, &QWebEnginePage::loadFinished, this, &HTMLCreator::slotFinished);
m_page->settings()->setAttribute(QWebEngineSettings::JavascriptEnabled, false);
m_page->settings()->setAttribute(QWebEngineSettings::PluginsEnabled, false);
m_page->settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessRemoteUrls, false);
m_page->settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessFileUrls, true);
}
QUrl url = QUrl::fromUserInput(path); // the argument should be a QUrl!
m_loadedOk = false;
m_page->load(url);
const int t = startTimer((url.isLocalFile()?5000:30000));
m_eventLoop.exec(QEventLoop::ExcludeUserInputEvents);
killTimer(t);
if (m_page->contentsSize().isEmpty()) {
m_loadedOk = false;
}
if (!m_loadedOk) {
return false;
}
QPixmap pix;
if (width > 400 || height > 600) {
if (height * 3 > width * 4) {
pix = QPixmap(width, width * 4 / 3);
} else {
pix = QPixmap(height * 3 / 4, height);
}
} else {
pix = QPixmap(400, 600);
}
pix.fill(Qt::transparent);
m_page->view()->render(&pix);
img = pix.toImage();
return true;
}
void HTMLCreator::timerEvent(QTimerEvent *)
{
m_eventLoop.quit();
}
void HTMLCreator::slotFinished(bool ok)
{
m_loadedOk = ok;
m_eventLoop.quit();
}
ThumbCreator::Flags HTMLCreator::flags() const
{
return None;
}
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