mirror of https://github.com/vitalif/phantomjs
665 lines
21 KiB
C++
665 lines
21 KiB
C++
/*
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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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Copyright (C) 2011 Ivan De Marino <ivan.de.marino@gmail.com>
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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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#include "webpage.h"
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#include <math.h>
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#include <QApplication>
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#include <QDesktopServices>
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#include <QDir>
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#include <QFileInfo>
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#include <QMouseEvent>
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#include <QNetworkAccessManager>
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#include <QNetworkRequest>
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#include <QPainter>
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#include <QPrinter>
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#include <QWebElement>
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#include <QWebFrame>
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#include <QWebPage>
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#include <QWebInspector>
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#include "networkaccessmanager.h"
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#include "utils.h"
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#include <gifwriter.h>
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#include "consts.h"
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// Ensure we have at least head and body.
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#define BLANK_HTML "<html><head></head><body></body></html>"
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class CustomPage: public QWebPage
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{
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Q_OBJECT
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public:
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CustomPage(WebPage *parent = 0)
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: QWebPage(parent)
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, m_webPage(parent)
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{
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m_userAgent = QWebPage::userAgentForUrl(QUrl());
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setForwardUnsupportedContent(true);
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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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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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void javaScriptAlert(QWebFrame *originatingFrame, const QString &msg) {
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Q_UNUSED(originatingFrame);
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m_webPage->emitAlert(msg);
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}
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void javaScriptConsoleMessage(const QString &message, int lineNumber, const QString &sourceID) {
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m_webPage->emitConsoleMessage(message, lineNumber, sourceID);
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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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WebPage *m_webPage;
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QString m_userAgent;
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QString m_uploadFile;
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friend class WebPage;
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};
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WebPage::WebPage(QObject *parent, const Config *config, const QUrl &baseUrl)
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: REPLCompletable(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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m_mainFrame->setHtml(BLANK_HTML, baseUrl);
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connect(m_mainFrame, SIGNAL(javaScriptWindowObjectCleared()), SIGNAL(initialized()));
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connect(m_webPage, SIGNAL(loadStarted()), SIGNAL(loadStarted()), Qt::QueuedConnection);
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connect(m_webPage, SIGNAL(loadFinished(bool)), SLOT(finish(bool)), Qt::QueuedConnection);
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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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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::OfflineWebApplicationCacheEnabled, true);
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m_webPage->settings()->setOfflineWebApplicationCachePath(QDesktopServices::storageLocation(QDesktopServices::DataLocation));
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m_webPage->settings()->setAttribute(QWebSettings::FrameFlatteningEnabled, true);
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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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// Custom network access manager to allow traffic monitoring.
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m_networkAccessManager = new NetworkAccessManager(this, config);
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m_webPage->setNetworkAccessManager(m_networkAccessManager);
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connect(m_networkAccessManager, SIGNAL(resourceRequested(QVariant)),
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SIGNAL(resourceRequested(QVariant)));
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connect(m_networkAccessManager, SIGNAL(resourceReceived(QVariant)),
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SIGNAL(resourceReceived(QVariant)));
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m_webPage->setViewportSize(QSize(400, 300));
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}
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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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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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QString WebPage::plainText() const
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{
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return m_mainFrame->toPlainText();
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}
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QString WebPage::libraryPath() const
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{
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return m_libraryPath;
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}
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void WebPage::setLibraryPath(const QString &libraryPath)
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{
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m_libraryPath = libraryPath;
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}
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void
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WebPage::showInspector(const int port)
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{
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m_webPage->settings()->setAttribute(QWebSettings::DeveloperExtrasEnabled, true);
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m_inspector = new QWebInspector;
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m_inspector->setPage(m_webPage);
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if (port == -1)
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m_inspector->setVisible(true);
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else {
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m_webPage->setProperty("_q_webInspectorServerPort", port);
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}
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}
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void WebPage::applySettings(const QVariantMap &def)
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{
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QWebSettings *opt = m_webPage->settings();
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opt->setAttribute(QWebSettings::AutoLoadImages, def[PAGE_SETTINGS_LOAD_IMAGES].toBool());
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opt->setAttribute(QWebSettings::PluginsEnabled, def[PAGE_SETTINGS_LOAD_PLUGINS].toBool());
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opt->setAttribute(QWebSettings::JavascriptEnabled, def[PAGE_SETTINGS_JS_ENABLED].toBool());
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opt->setAttribute(QWebSettings::XSSAuditingEnabled, def[PAGE_SETTINGS_XSS_AUDITING].toBool());
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opt->setAttribute(QWebSettings::LocalContentCanAccessRemoteUrls, def[PAGE_SETTINGS_LOCAL_ACCESS_REMOTE].toBool());
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if (def.contains(PAGE_SETTINGS_USER_AGENT))
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m_webPage->m_userAgent = def[PAGE_SETTINGS_USER_AGENT].toString();
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if (def.contains(PAGE_SETTINGS_USERNAME))
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m_networkAccessManager->setUserName(def[PAGE_SETTINGS_USERNAME].toString());
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if (def.contains(PAGE_SETTINGS_PASSWORD))
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m_networkAccessManager->setPassword(def[PAGE_SETTINGS_PASSWORD].toString());
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}
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QString WebPage::userAgent() const
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{
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return m_webPage->m_userAgent;
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}
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void WebPage::setViewportSize(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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if (w > 0 && h > 0)
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m_webPage->setViewportSize(QSize(w, h));
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}
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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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}
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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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}
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QVariantMap WebPage::clipRect() const
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{
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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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}
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void WebPage::setScrollPosition(const QVariantMap &size)
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{
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int top = size.value("top").toInt();
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int left = size.value("left").toInt();
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m_scrollPosition = QPoint(left,top);
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m_mainFrame->setScrollPosition(m_scrollPosition);
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}
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QVariantMap WebPage::scrollPosition() const
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{
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QVariantMap result;
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result["top"] = m_scrollPosition.y();
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result["left"] = m_scrollPosition.x();
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return result;
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}
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void WebPage::setPaperSize(const QVariantMap &size)
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{
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m_paperSize = size;
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}
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QVariantMap WebPage::paperSize() const
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{
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return m_paperSize;
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}
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QVariant WebPage::evaluate(const QString &code)
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{
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QString function = "(" + code + ")()";
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return m_mainFrame->evaluateJavaScript(function);
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}
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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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void WebPage::emitConsoleMessage(const QString &message, int lineNumber, const QString &source)
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{
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emit javaScriptConsoleMessageSent(message, lineNumber, source);
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}
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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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emit loadFinished(status);
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}
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void WebPage::setCustomHeaders(const QVariantMap &headers)
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{
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m_networkAccessManager->setCustomHeaders(headers);
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}
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QVariantMap WebPage::customHeaders() const
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{
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return m_networkAccessManager->customHeaders();
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}
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void WebPage::openUrl(const QString &address, const QVariant &op, const QVariantMap &settings)
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{
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QString operation;
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QByteArray body;
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applySettings(settings);
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m_webPage->triggerAction(QWebPage::Stop);
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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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if (address == "about:blank") {
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m_mainFrame->setHtml(BLANK_HTML);
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} else {
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QUrl url = QUrl::fromEncoded(QByteArray(address.toAscii()));
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#if QT_VERSION == QT_VERSION_CHECK(4, 8, 0)
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// Assume local file if scheme is empty
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if (url.scheme().isEmpty()) {
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url.setPath(QFileInfo(url.toString()).absoluteFilePath().prepend("/"));
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url.setScheme("file");
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}
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#endif
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m_mainFrame->load(QNetworkRequest(url), networkOp, body);
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}
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}
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void WebPage::release()
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{
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deleteLater();
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}
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bool WebPage::render(const QString &fileName)
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{
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if (m_mainFrame->contentsSize().isEmpty())
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return false;
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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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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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return buffer.save(fileName);
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}
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QImage WebPage::renderImage()
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{
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QSize contentsSize = m_mainFrame->contentsSize();
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contentsSize -= QSize(m_scrollPosition.x(), m_scrollPosition.y());
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QRect frameRect = QRect(QPoint(0, 0), 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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m_webPage->setViewportSize(contentsSize);
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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;
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// We use tiling approach to work-around Qt software rasterizer bug
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// when dealing with very large paint device.
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// See http://code.google.com/p/phantomjs/issues/detail?id=54.
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const int tileSize = 4096;
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int htiles = (buffer.width() + tileSize - 1) / tileSize;
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int vtiles = (buffer.height() + tileSize - 1) / tileSize;
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for (int x = 0; x < htiles; ++x) {
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for (int y = 0; y < vtiles; ++y) {
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QImage tileBuffer(tileSize, tileSize, QImage::Format_ARGB32);
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tileBuffer.fill(qRgba(255, 255, 255, 0));
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// Render the web page onto the small tile first
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painter.begin(&tileBuffer);
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painter.setRenderHint(QPainter::Antialiasing, true);
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painter.setRenderHint(QPainter::TextAntialiasing, true);
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painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
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painter.translate(-frameRect.left(), -frameRect.top());
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painter.translate(-x * tileSize, -y * tileSize);
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m_mainFrame->render(&painter, QRegion(frameRect));
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painter.end();
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// Copy the tile to the main buffer
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painter.begin(&buffer);
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painter.setCompositionMode(QPainter::CompositionMode_Source);
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painter.drawImage(x * tileSize, y * tileSize, tileBuffer);
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painter.end();
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}
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}
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m_webPage->setViewportSize(viewportSize);
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return buffer;
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}
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#define PHANTOMJS_PDF_DPI 72 // Different defaults. OSX: 72, X11: 75(?), Windows: 96
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qreal stringToPointSize(const QString &string)
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{
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static const struct {
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QString unit;
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qreal factor;
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} units[] = {
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{ "mm", 72 / 25.4 },
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{ "cm", 72 / 2.54 },
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{ "in", 72 },
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{ "px", 72.0 / PHANTOMJS_PDF_DPI / 2.54 },
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{ "", 72.0 / PHANTOMJS_PDF_DPI / 2.54 }
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};
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for (uint i = 0; i < sizeof(units) / sizeof(units[0]); ++i) {
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if (string.endsWith(units[i].unit)) {
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QString value = string;
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value.chop(units[i].unit.length());
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return value.toDouble() * units[i].factor;
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}
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}
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return 0;
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}
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qreal printMargin(const QVariantMap &map, const QString &key)
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{
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const QVariant margin = map.value(key);
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if (margin.isValid() && margin.canConvert(QVariant::String)) {
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return stringToPointSize(margin.toString());
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} else {
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return 0;
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}
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}
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bool WebPage::renderPdf(const QString &fileName)
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{
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QPrinter printer;
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printer.setOutputFormat(QPrinter::PdfFormat);
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printer.setOutputFileName(fileName);
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printer.setResolution(PHANTOMJS_PDF_DPI);
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QVariantMap paperSize = m_paperSize;
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if (paperSize.isEmpty()) {
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const QSize pageSize = m_mainFrame->contentsSize();
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paperSize.insert("width", QString::number(pageSize.width()) + "px");
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paperSize.insert("height", QString::number(pageSize.height()) + "px");
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paperSize.insert("margin", "0px");
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}
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if (paperSize.contains("width") && paperSize.contains("height")) {
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const QSizeF sizePt(ceil(stringToPointSize(paperSize.value("width").toString())),
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ceil(stringToPointSize(paperSize.value("height").toString())));
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printer.setPaperSize(sizePt, QPrinter::Point);
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} else if (paperSize.contains("format")) {
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const QPrinter::Orientation orientation = paperSize.contains("orientation")
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&& paperSize.value("orientation").toString().compare("landscape", Qt::CaseInsensitive) == 0 ?
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QPrinter::Landscape : QPrinter::Portrait;
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printer.setOrientation(orientation);
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static const struct {
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QString format;
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QPrinter::PaperSize paperSize;
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} formats[] = {
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{ "A0", QPrinter::A0 },
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{ "A1", QPrinter::A1 },
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{ "A2", QPrinter::A2 },
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{ "A3", QPrinter::A3 },
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{ "A4", QPrinter::A4 },
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{ "A5", QPrinter::A5 },
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{ "A6", QPrinter::A6 },
|
|
{ "A7", QPrinter::A7 },
|
|
{ "A8", QPrinter::A8 },
|
|
{ "A9", QPrinter::A9 },
|
|
{ "B0", QPrinter::B0 },
|
|
{ "B1", QPrinter::B1 },
|
|
{ "B2", QPrinter::B2 },
|
|
{ "B3", QPrinter::B3 },
|
|
{ "B4", QPrinter::B4 },
|
|
{ "B5", QPrinter::B5 },
|
|
{ "B6", QPrinter::B6 },
|
|
{ "B7", QPrinter::B7 },
|
|
{ "B8", QPrinter::B8 },
|
|
{ "B9", QPrinter::B9 },
|
|
{ "B10", QPrinter::B10 },
|
|
{ "C5E", QPrinter::C5E },
|
|
{ "Comm10E", QPrinter::Comm10E },
|
|
{ "DLE", QPrinter::DLE },
|
|
{ "Executive", QPrinter::Executive },
|
|
{ "Folio", QPrinter::Folio },
|
|
{ "Ledger", QPrinter::Ledger },
|
|
{ "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;
|
|
}
|
|
|
|
if (paperSize.contains("border") && !paperSize.contains("margin")) {
|
|
// backwards compatibility
|
|
paperSize["margin"] = paperSize["border"];
|
|
}
|
|
|
|
qreal marginLeft = 0;
|
|
qreal marginTop = 0;
|
|
qreal marginRight = 0;
|
|
qreal marginBottom = 0;
|
|
|
|
if (paperSize.contains("margin")) {
|
|
const QVariant margins = paperSize["margin"];
|
|
if (margins.canConvert(QVariant::Map)) {
|
|
const QVariantMap map = margins.toMap();
|
|
marginLeft = printMargin(map, "left");
|
|
marginTop = printMargin(map, "top");
|
|
marginRight = printMargin(map, "right");
|
|
marginBottom = printMargin(map, "bottom");
|
|
} else if (margins.canConvert(QVariant::String)) {
|
|
const qreal margin = stringToPointSize(margins.toString());
|
|
marginLeft = margin;
|
|
marginTop = margin;
|
|
marginRight = margin;
|
|
marginBottom = margin;
|
|
}
|
|
}
|
|
|
|
printer.setPageMargins(marginLeft, marginTop, marginRight, marginBottom, QPrinter::Point);
|
|
|
|
m_mainFrame->print(&printer);
|
|
return true;
|
|
}
|
|
|
|
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(JS_ELEMENT_CLICK);
|
|
}
|
|
|
|
bool WebPage::injectJs(const QString &jsFilePath) {
|
|
return Utils::injectJsInFrame(jsFilePath, m_libraryPath, m_mainFrame);
|
|
}
|
|
|
|
void WebPage::_appendScriptElement(const QString &scriptUrl) {
|
|
m_mainFrame->evaluateJavaScript( QString(JS_APPEND_SCRIPT_ELEMENT).arg(scriptUrl) );
|
|
}
|
|
|
|
void WebPage::sendEvent(const QString &type, const QVariant &arg1, const QVariant &arg2)
|
|
{
|
|
if (type == "mousedown" || type == "mouseup" || type == "mousemove") {
|
|
QMouseEvent::Type eventType = QEvent::None;
|
|
Qt::MouseButton button = Qt::LeftButton;
|
|
Qt::MouseButtons buttons = Qt::LeftButton;
|
|
|
|
if (type == "mousedown")
|
|
eventType = QEvent::MouseButtonPress;
|
|
if (type == "mouseup")
|
|
eventType = QEvent::MouseButtonRelease;
|
|
if (type == "mousemove") {
|
|
eventType = QEvent::MouseMove;
|
|
button = Qt::NoButton;
|
|
buttons = Qt::NoButton;
|
|
}
|
|
Q_ASSERT(eventType != QEvent::None);
|
|
|
|
int x = arg1.toInt();
|
|
int y = arg2.toInt();
|
|
QMouseEvent *event = new QMouseEvent(eventType, QPoint(x, y), button, buttons, Qt::NoModifier);
|
|
QApplication::postEvent(m_webPage, event);
|
|
QApplication::processEvents();
|
|
return;
|
|
}
|
|
|
|
if (type == "click") {
|
|
sendEvent("mousedown", arg1, arg2);
|
|
sendEvent("mouseup", arg1, arg2);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void WebPage::initCompletions()
|
|
{
|
|
// Add completion for the Dynamic Properties of the 'webpage' object
|
|
// properties
|
|
addCompletion("clipRect");
|
|
addCompletion("content");
|
|
addCompletion("libraryPath");
|
|
addCompletion("settings");
|
|
addCompletion("viewportSize");
|
|
// functions
|
|
addCompletion("evaluate");
|
|
addCompletion("includeJs");
|
|
addCompletion("injectJs");
|
|
addCompletion("open");
|
|
addCompletion("release");
|
|
addCompletion("render");
|
|
addCompletion("sendEvent");
|
|
addCompletion("uploadFile");
|
|
// callbacks
|
|
addCompletion("onAlert");
|
|
addCompletion("onConsoleMessage");
|
|
addCompletion("onInitialized");
|
|
addCompletion("onLoadStarted");
|
|
addCompletion("onLoadFinished");
|
|
addCompletion("onResourceRequested");
|
|
addCompletion("onResourceReceived");
|
|
}
|
|
|
|
#include "webpage.moc"
|