2011-04-09 21:34:04 +04:00
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/*
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This file is part of the PhantomJS project from Ofi Labs.
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Copyright (C) 2011 Ariya Hidayat <ariya.hidayat@gmail.com>
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2011-05-25 21:46:51 +04:00
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Copyright (C) 2010 Ariya Hidayat <ariya.hidayat@gmail.com>
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2011-04-09 21:34:04 +04:00
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of the <organization> nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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2011-05-25 21:46:51 +04:00
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#include "webpage.h"
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#include <math.h>
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2011-04-08 17:30:50 +04:00
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#include <QApplication>
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2011-05-26 11:27:55 +04:00
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#include <QDesktopServices>
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2011-05-25 21:46:51 +04:00
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#include <QDir>
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#include <QFileInfo>
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2011-05-28 12:38:11 +04:00
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#include <QNetworkRequest>
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#include <QNetworkAccessManager>
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2011-05-25 21:46:51 +04:00
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#include <QPainter>
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#include <QPrinter>
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#include <QWebFrame>
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#include <QWebPage>
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2011-04-08 17:30:50 +04:00
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2011-06-05 11:28:14 +04:00
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#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
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#include <QWebElement>
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#endif
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2011-05-25 21:46:51 +04:00
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#include <gifwriter.h>
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class CustomPage: public QWebPage
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{
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public:
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2011-05-29 08:16:18 +04:00
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CustomPage(WebPage *parent = 0)
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2011-05-25 21:46:51 +04:00
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: QWebPage(parent)
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2011-05-29 08:16:18 +04:00
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, m_webPage(parent)
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2011-05-25 21:46:51 +04:00
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{
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m_userAgent = QWebPage::userAgentForUrl(QUrl());
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}
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public slots:
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bool shouldInterruptJavaScript() {
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QApplication::processEvents(QEventLoop::AllEvents, 42);
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return false;
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}
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protected:
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2011-06-05 11:28:14 +04:00
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QString chooseFile(QWebFrame *originatingFrame, const QString &oldFile) {
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Q_UNUSED(originatingFrame);
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Q_UNUSED(oldFile);
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return m_uploadFile;
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}
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2011-05-25 21:46:51 +04:00
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void javaScriptAlert(QWebFrame *originatingFrame, const QString &msg) {
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Q_UNUSED(originatingFrame);
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2011-05-29 11:29:29 +04:00
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m_webPage->emitAlert(msg);
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2011-05-25 21:46:51 +04:00
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}
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void javaScriptConsoleMessage(const QString &message, int lineNumber, const QString &sourceID) {
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2011-05-29 08:16:18 +04:00
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QString msg = message;
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2011-05-25 21:46:51 +04:00
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if (!sourceID.isEmpty())
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2011-05-29 08:16:18 +04:00
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msg = sourceID + ":" + QString::number(lineNumber) + " " + msg;
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m_webPage->emitConsoleMessage(msg);
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2011-05-25 21:46:51 +04:00
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}
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QString userAgentForUrl(const QUrl &url) const {
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Q_UNUSED(url);
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return m_userAgent;
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}
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private:
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2011-05-29 08:16:18 +04:00
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WebPage *m_webPage;
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2011-05-25 21:46:51 +04:00
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QString m_userAgent;
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2011-06-05 11:28:14 +04:00
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QString m_uploadFile;
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2011-05-25 21:46:51 +04:00
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friend class WebPage;
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};
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2011-04-08 17:30:50 +04:00
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WebPage::WebPage(QObject *parent)
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2011-05-25 21:46:51 +04:00
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: QObject(parent)
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{
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setObjectName("WebPage");
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m_webPage = new CustomPage(this);
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m_mainFrame = m_webPage->mainFrame();
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2011-06-06 12:22:32 +04:00
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connect(m_webPage, SIGNAL(loadStarted()), SIGNAL(loadStarted()));
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2011-05-25 21:46:51 +04:00
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connect(m_webPage, SIGNAL(loadFinished(bool)), SLOT(finish(bool)));
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// Start with transparent background.
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QPalette palette = m_webPage->palette();
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palette.setBrush(QPalette::Base, Qt::transparent);
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m_webPage->setPalette(palette);
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// Page size does not need to take scrollbars into account.
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m_mainFrame->setScrollBarPolicy(Qt::Horizontal, Qt::ScrollBarAlwaysOff);
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m_mainFrame->setScrollBarPolicy(Qt::Vertical, Qt::ScrollBarAlwaysOff);
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2011-05-26 11:27:55 +04:00
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m_webPage->settings()->setAttribute(QWebSettings::OfflineStorageDatabaseEnabled, true);
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m_webPage->settings()->setOfflineStoragePath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
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m_webPage->settings()->setAttribute(QWebSettings::LocalStorageDatabaseEnabled, true);
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#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
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m_webPage->settings()->setAttribute(QWebSettings::FrameFlatteningEnabled, true);
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#endif
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#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
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m_webPage->settings()->setAttribute(QWebSettings::LocalStorageEnabled, true);
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m_webPage->settings()->setLocalStoragePath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
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#endif
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2011-05-25 21:46:51 +04:00
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// Ensure we have at least document.body.
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m_mainFrame->setHtml("<html><body></body></html>");
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m_webPage->setViewportSize(QSize(400, 300));
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}
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2011-05-26 01:00:20 +04:00
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QWebFrame *WebPage::mainFrame()
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{
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return m_mainFrame;
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}
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2011-05-26 12:56:43 +04:00
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void WebPage::setNetworkAccessManager(QNetworkAccessManager *networkAccessManager)
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{
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m_webPage->setNetworkAccessManager(networkAccessManager);
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2011-06-07 10:56:23 +04:00
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connect(networkAccessManager, SIGNAL(resourceRequested(QVariant)),
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SIGNAL(resourceRequested(QVariant)));
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2011-05-26 12:56:43 +04:00
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}
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2011-05-25 21:46:51 +04:00
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QString WebPage::content() const
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{
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return m_mainFrame->toHtml();
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}
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void WebPage::setContent(const QString &content)
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{
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m_mainFrame->setHtml(content);
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}
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2011-05-28 09:36:34 +04:00
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void WebPage::applySettings(const QVariantMap &def)
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2011-05-28 07:37:36 +04:00
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{
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QWebSettings *opt = m_webPage->settings();
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opt->setAttribute(QWebSettings::AutoLoadImages, def["loadImages"].toBool());
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opt->setAttribute(QWebSettings::PluginsEnabled, def["loadPlugins"].toBool());
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2011-05-28 09:50:33 +04:00
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if (def.contains("userAgent"))
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m_webPage->m_userAgent = def["userAgent"].toString();
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2011-05-25 21:46:51 +04:00
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}
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QString WebPage::userAgent() const
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2011-04-08 17:30:50 +04:00
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{
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2011-05-25 21:46:51 +04:00
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return m_webPage->m_userAgent;
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2011-04-08 17:30:50 +04:00
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}
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2011-05-25 21:46:51 +04:00
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void WebPage::setViewportSize(const QVariantMap &size)
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2011-04-08 17:30:50 +04:00
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{
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2011-05-25 21:46:51 +04:00
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int w = size.value("width").toInt();
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int h = size.value("height").toInt();
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if (w > 0 && h > 0)
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m_webPage->setViewportSize(QSize(w, h));
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2011-04-08 17:30:50 +04:00
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}
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2011-05-25 21:46:51 +04:00
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QVariantMap WebPage::viewportSize() const
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{
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QVariantMap result;
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QSize size = m_webPage->viewportSize();
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result["width"] = size.width();
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result["height"] = size.height();
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return result;
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2011-04-08 17:30:50 +04:00
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}
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2011-05-25 21:46:51 +04:00
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void WebPage::setClipRect(const QVariantMap &size)
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{
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int w = size.value("width").toInt();
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int h = size.value("height").toInt();
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int top = size.value("top").toInt();
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int left = size.value("left").toInt();
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if (w >= 0 && h >= 0)
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m_clipRect = QRect(left, top, w, h);
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2011-04-08 17:30:50 +04:00
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}
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2011-05-25 21:46:51 +04:00
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QVariantMap WebPage::clipRect() const
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2011-04-08 17:30:50 +04:00
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{
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2011-05-25 21:46:51 +04:00
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QVariantMap result;
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result["width"] = m_clipRect.width();
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result["height"] = m_clipRect.height();
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result["top"] = m_clipRect.top();
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result["left"] = m_clipRect.left();
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return result;
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2011-04-08 17:30:50 +04:00
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}
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2011-05-25 21:46:51 +04:00
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void WebPage::setPaperSize(const QVariantMap &size)
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2011-04-08 17:30:50 +04:00
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{
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2011-05-25 21:46:51 +04:00
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m_paperSize = size;
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2011-04-08 17:30:50 +04:00
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}
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2011-05-25 21:46:51 +04:00
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QVariantMap WebPage::paperSize() const
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2011-04-08 17:30:50 +04:00
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{
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2011-05-25 21:46:51 +04:00
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return m_paperSize;
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2011-04-08 17:30:50 +04:00
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}
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2011-05-25 21:46:51 +04:00
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QVariant WebPage::evaluate(const QString &code)
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2011-04-08 17:30:50 +04:00
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{
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2011-06-01 23:14:20 +04:00
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QString function = "(" + code + ")()";
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2011-05-25 21:46:51 +04:00
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return m_mainFrame->evaluateJavaScript(function);
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}
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2011-05-29 11:29:29 +04:00
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void WebPage::emitAlert(const QString &msg)
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{
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emit javaScriptAlertSent(msg);
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}
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2011-05-29 08:16:18 +04:00
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void WebPage::emitConsoleMessage(const QString &msg)
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{
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emit javaScriptConsoleMessageSent(msg);
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}
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2011-05-25 21:46:51 +04:00
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void WebPage::finish(bool ok)
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{
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QString status = ok ? "success" : "fail";
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2011-06-06 12:31:37 +04:00
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emit loadFinished(status);
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2011-05-25 21:46:51 +04:00
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}
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2011-05-28 12:38:11 +04:00
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void WebPage::openUrl(const QString &address, const QVariant &op, const QVariantMap &settings)
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2011-05-25 21:46:51 +04:00
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{
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2011-05-28 12:38:11 +04:00
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QString operation;
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QByteArray body;
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2011-05-28 09:36:34 +04:00
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applySettings(settings);
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2011-05-25 21:46:51 +04:00
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m_webPage->triggerAction(QWebPage::Stop);
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2011-05-28 12:38:11 +04:00
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if (op.type() == QVariant::String)
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operation = op.toString();
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if (op.type() == QVariant::Map) {
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operation = op.toMap().value("operation").toString();
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body = op.toMap().value("data").toByteArray();
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}
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if (operation.isEmpty())
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operation = "get";
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QNetworkAccessManager::Operation networkOp = QNetworkAccessManager::UnknownOperation;
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operation = operation.toLower();
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if (operation == "get")
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networkOp = QNetworkAccessManager::GetOperation;
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else if (operation == "head")
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networkOp = QNetworkAccessManager::HeadOperation;
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else if (operation == "put")
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networkOp = QNetworkAccessManager::PutOperation;
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else if (operation == "post")
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networkOp = QNetworkAccessManager::PostOperation;
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else if (operation == "delete")
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networkOp = QNetworkAccessManager::DeleteOperation;
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if (networkOp == QNetworkAccessManager::UnknownOperation) {
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m_mainFrame->evaluateJavaScript("console.error('Unknown network operation: " + operation + "');");
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return;
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}
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m_mainFrame->load(QNetworkRequest(QUrl(address)), networkOp, body);
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2011-05-25 21:46:51 +04:00
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}
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bool WebPage::render(const QString &fileName)
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{
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2011-05-29 00:51:39 +04:00
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if (m_mainFrame->contentsSize().isEmpty())
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return false;
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2011-05-25 21:46:51 +04:00
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QFileInfo fileInfo(fileName);
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QDir dir;
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dir.mkpath(fileInfo.absolutePath());
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if (fileName.endsWith(".pdf", Qt::CaseInsensitive))
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return renderPdf(fileName);
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2011-05-29 00:51:39 +04:00
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QImage buffer = renderImage();
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if (fileName.toLower().endsWith(".gif")) {
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return exportGif(buffer, fileName);
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}
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2011-05-25 21:46:51 +04:00
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2011-05-29 00:51:39 +04:00
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return buffer.save(fileName);
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}
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2011-05-29 00:41:01 +04:00
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2011-05-29 00:51:39 +04:00
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QImage WebPage::renderImage()
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{
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2011-05-29 00:41:01 +04:00
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QRect frameRect = QRect(QPoint(0, 0), m_mainFrame->contentsSize());
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if (!m_clipRect.isNull())
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frameRect = m_clipRect;
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QSize viewportSize = m_webPage->viewportSize();
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2011-05-29 00:51:39 +04:00
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m_webPage->setViewportSize(m_mainFrame->contentsSize());
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2011-05-25 21:46:51 +04:00
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2011-05-29 02:45:16 +04:00
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QImage buffer(frameRect.size(), QImage::Format_ARGB32);
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buffer.fill(qRgba(255, 255, 255, 0));
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|
|
|
|
|
|
QPainter painter;
|
|
|
|
|
|
|
|
// We use tiling approach to work-around Qt software rasterizer bug
|
|
|
|
// when dealing with very large paint device.
|
|
|
|
// See http://code.google.com/p/phantomjs/issues/detail?id=54.
|
|
|
|
const int tileSize = 4096;
|
|
|
|
int htiles = (buffer.width() + tileSize - 1) / tileSize;
|
|
|
|
int vtiles = (buffer.height() + tileSize - 1) / tileSize;
|
|
|
|
for (int x = 0; x < htiles; ++x) {
|
|
|
|
for (int y = 0; y < vtiles; ++y) {
|
|
|
|
|
|
|
|
QImage tileBuffer(tileSize, tileSize, QImage::Format_ARGB32);
|
|
|
|
tileBuffer.fill(qRgba(255, 255, 255, 0));
|
|
|
|
|
|
|
|
// Render the web page onto the small tile first
|
|
|
|
painter.begin(&tileBuffer);
|
|
|
|
painter.setRenderHint(QPainter::Antialiasing, true);
|
|
|
|
painter.setRenderHint(QPainter::TextAntialiasing, true);
|
|
|
|
painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
|
|
|
|
painter.translate(-frameRect.left(), -frameRect.top());
|
|
|
|
painter.translate(-x * tileSize, -y * tileSize);
|
|
|
|
m_mainFrame->render(&painter, QRegion(frameRect));
|
|
|
|
painter.end();
|
|
|
|
|
|
|
|
// Copy the tile to the main buffer
|
|
|
|
painter.begin(&buffer);
|
|
|
|
painter.setCompositionMode(QPainter::CompositionMode_Source);
|
|
|
|
painter.drawImage(x * tileSize, y * tileSize, tileBuffer);
|
|
|
|
painter.end();
|
|
|
|
}
|
|
|
|
}
|
2011-05-29 00:41:01 +04:00
|
|
|
|
2011-05-25 21:46:51 +04:00
|
|
|
m_webPage->setViewportSize(viewportSize);
|
|
|
|
|
2011-05-29 00:51:39 +04:00
|
|
|
return buffer;
|
2011-05-25 21:46:51 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
#define PHANTOMJS_PDF_DPI 72 // Different defaults. OSX: 72, X11: 75(?), Windows: 96
|
|
|
|
|
|
|
|
qreal stringToPointSize(const QString &string)
|
|
|
|
{
|
|
|
|
static const struct {
|
|
|
|
QString unit;
|
|
|
|
qreal factor;
|
|
|
|
} units[] = {
|
|
|
|
{ "mm", 72 / 25.4 },
|
|
|
|
{ "cm", 72 / 2.54 },
|
|
|
|
{ "in", 72 },
|
|
|
|
{ "px", 72.0 / PHANTOMJS_PDF_DPI / 2.54 },
|
|
|
|
{ "", 72.0 / PHANTOMJS_PDF_DPI / 2.54 }
|
|
|
|
};
|
|
|
|
for (uint i = 0; i < sizeof(units) / sizeof(units[0]); ++i) {
|
|
|
|
if (string.endsWith(units[i].unit)) {
|
|
|
|
QString value = string;
|
|
|
|
value.chop(units[i].unit.length());
|
|
|
|
return value.toDouble() * units[i].factor;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
bool WebPage::renderPdf(const QString &fileName)
|
|
|
|
{
|
|
|
|
QPrinter printer;
|
|
|
|
printer.setOutputFormat(QPrinter::PdfFormat);
|
|
|
|
printer.setOutputFileName(fileName);
|
|
|
|
printer.setResolution(PHANTOMJS_PDF_DPI);
|
|
|
|
QVariantMap paperSize = m_paperSize;
|
|
|
|
|
|
|
|
if (paperSize.isEmpty()) {
|
|
|
|
const QSize pageSize = m_mainFrame->contentsSize();
|
|
|
|
paperSize.insert("width", QString::number(pageSize.width()) + "px");
|
|
|
|
paperSize.insert("height", QString::number(pageSize.height()) + "px");
|
|
|
|
paperSize.insert("border", "0px");
|
|
|
|
}
|
|
|
|
|
|
|
|
if (paperSize.contains("width") && paperSize.contains("height")) {
|
|
|
|
const QSizeF sizePt(ceil(stringToPointSize(paperSize.value("width").toString())),
|
|
|
|
ceil(stringToPointSize(paperSize.value("height").toString())));
|
|
|
|
printer.setPaperSize(sizePt, QPrinter::Point);
|
|
|
|
} else if (paperSize.contains("format")) {
|
|
|
|
const QPrinter::Orientation orientation = paperSize.contains("orientation")
|
|
|
|
&& paperSize.value("orientation").toString().compare("landscape", Qt::CaseInsensitive) == 0 ?
|
|
|
|
QPrinter::Landscape : QPrinter::Portrait;
|
|
|
|
printer.setOrientation(orientation);
|
|
|
|
static const struct {
|
|
|
|
QString format;
|
|
|
|
QPrinter::PaperSize paperSize;
|
|
|
|
} formats[] = {
|
|
|
|
{ "A3", QPrinter::A3 },
|
|
|
|
{ "A4", QPrinter::A4 },
|
|
|
|
{ "A5", QPrinter::A5 },
|
|
|
|
{ "Legal", QPrinter::Legal },
|
|
|
|
{ "Letter", QPrinter::Letter },
|
|
|
|
{ "Tabloid", QPrinter::Tabloid }
|
|
|
|
};
|
|
|
|
printer.setPaperSize(QPrinter::A4); // Fallback
|
|
|
|
for (uint i = 0; i < sizeof(formats) / sizeof(formats[0]); ++i) {
|
|
|
|
if (paperSize.value("format").toString().compare(formats[i].format, Qt::CaseInsensitive) == 0) {
|
|
|
|
printer.setPaperSize(formats[i].paperSize);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
const qreal border = paperSize.contains("border") ?
|
|
|
|
floor(stringToPointSize(paperSize.value("border").toString())) : 0;
|
|
|
|
printer.setPageMargins(border, border, border, border, QPrinter::Point);
|
|
|
|
|
|
|
|
m_mainFrame->print(&printer);
|
|
|
|
return true;
|
2011-04-08 17:30:50 +04:00
|
|
|
}
|
2011-06-05 11:28:14 +04:00
|
|
|
|
|
|
|
#if QT_VERSION >= QT_VERSION_CHECK(4, 6, 0)
|
|
|
|
|
|
|
|
#define ELEMENT_CLICK "(function (el) { " \
|
|
|
|
"var ev = document.createEvent('MouseEvents');" \
|
|
|
|
"ev.initEvent('click', true, true);" \
|
|
|
|
"el.dispatchEvent(ev);" \
|
|
|
|
"})(this)"
|
|
|
|
|
|
|
|
void WebPage::uploadFile(const QString &selector, const QString &fileName)
|
|
|
|
{
|
|
|
|
QWebElement el = m_mainFrame->findFirstElement(selector);
|
|
|
|
if (el.isNull())
|
|
|
|
return;
|
|
|
|
|
|
|
|
m_webPage->m_uploadFile = fileName;
|
|
|
|
el.evaluateJavaScript(ELEMENT_CLICK);
|
|
|
|
}
|
|
|
|
#endif
|