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 /* ============================================================
 * Falkon - Qt web browser
 * Copyright (C) 2010-2017 David Rosca <nowrep@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 3 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, see <http://www.gnu.org/licenses/>.
 * ============================================================ */
 #include "pagethumbnailer.h"
 #include "scripts.h"
 #include "webview.h"
 
 #include <QTimer>
 #include <QApplication>
 
 #include <QQmlContext>
 #include <QQuickItem>
 #include <QQuickWidget>
 
 PageThumbnailer::PageThumbnailer(QObject* parent)
     : QObject(parent)
     , m_view(new QQuickWidget())
     , m_size(QSize(450, 253) * qApp->devicePixelRatio())
     , m_loadTitle(false)
 {
     m_view->setAttribute(Qt::WA_DontShowOnScreen);
     m_view->setSource(QUrl(QSL("qrc:data/thumbnailer.qml")));
     m_view->rootContext()->setContextProperty(QSL("thumbnailer"), this);
     m_view->show();
 }
 
 void PageThumbnailer::setSize(const QSize &size)
 {
     if (size.isValid()) {
         m_size = size;
     }
 }
 
 void PageThumbnailer::setUrl(const QUrl &url)
 {
     if (url.isValid()) {
         m_url = url;
     }
 }
 
 QUrl PageThumbnailer::url()
 {
     return m_url;
 }
 
 bool PageThumbnailer::loadTitle()
 {
     return m_loadTitle;
 }
 
 void PageThumbnailer::setLoadTitle(bool load)
 {
     m_loadTitle = load;
 }
 
 QString PageThumbnailer::title()
 {
     QString title = m_title.isEmpty() ? m_url.host() : m_title;
     if (title.isEmpty()) {
         title = m_url.toString();
     }
     return title;
 }
 
 void PageThumbnailer::start()
 {
     if (m_view->rootObject() && WebView::isUrlValid(m_url)) {
         m_view->rootObject()->setProperty("url", m_url);
     } else {
         QTimer::singleShot(500, this, [this]() {
             Q_EMIT thumbnailCreated(QPixmap());
         });
     }
 }
 
 QString PageThumbnailer::afterLoadScript() const
 {
     return Scripts::setCss(QSL("::-webkit-scrollbar{display:none;}"));
 }
 
 void PageThumbnailer::createThumbnail(bool status)
 {
     if (!status) {
         Q_EMIT thumbnailCreated(QPixmap());
         return;
     }
 
     QTimer::singleShot(1000, this, [this]() {
         m_title = m_view->rootObject()->property("title").toString().trimmed();
         Q_EMIT thumbnailCreated(QPixmap::fromImage(m_view->grabFramebuffer().scaled(m_size, Qt::IgnoreAspectRatio, Qt::SmoothTransformation)));
     });
 }
 
 PageThumbnailer::~PageThumbnailer()
 {
     m_view->deleteLater();
 }