browserapplication.cpp Example File

webenginewidgets/demobrowser/browserapplication.cpp
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#include "browserapplication.h" #include "bookmarks.h" #include "browsermainwindow.h" #include "cookiejar.h" #include "downloadmanager.h" #include "history.h" #include "tabwidget.h" #include "webview.h" #include <QtCore/QBuffer> #include <QtCore/QDir> #include <QtCore/QLibraryInfo> #include <QtCore/QSettings> #include <QtCore/QTextStream> #include <QtCore/QTranslator> #include <QtGui/QDesktopServices> #include <QtGui/QFileOpenEvent> #include <QtWidgets/QMessageBox> #include <QtNetwork/QLocalServer> #include <QtNetwork/QLocalSocket> #include <QtNetwork/QNetworkProxy> #include <QtNetwork/QSslSocket> #include <QWebEngineProfile> #include <QWebEngineSettings> #include <QWebEngineScript> #include <QWebEngineScriptCollection> #include <QtCore/QDebug> DownloadManager *BrowserApplication::s_downloadManager = 0; HistoryManager *BrowserApplication::s_historyManager = 0; QNetworkAccessManager *BrowserApplication::s_networkAccessManager = 0; BookmarksManager *BrowserApplication::s_bookmarksManager = 0; static void setUserStyleSheet(QWebEngineProfile *profile, const QString &styleSheet, BrowserMainWindow *mainWindow = 0) { Q_ASSERT(profile); QString scriptName(QStringLiteral("userStyleSheet")); QWebEngineScript script; QList<QWebEngineScript> styleSheets = profile->scripts()->findScripts(scriptName); if (!styleSheets.isEmpty()) script = styleSheets.first(); Q_FOREACH (const QWebEngineScript &s, styleSheets) profile->scripts()->remove(s); if (script.isNull()) { script.setName(scriptName); script.setInjectionPoint(QWebEngineScript::DocumentReady); script.setRunsOnSubFrames(true); script.setWorldId(QWebEngineScript::ApplicationWorld); } QString source = QString::fromLatin1("(function() {"\ "var css = document.getElementById(\"_qt_testBrowser_userStyleSheet\");"\ "if (css == undefined) {"\ " css = document.createElement(\"style\");"\ " css.type = \"text/css\";"\ " css.id = \"_qt_testBrowser_userStyleSheet\";"\ " document.head.appendChild(css);"\ "}"\ "css.innerText = \"%1\";"\ "})()").arg(styleSheet); script.setSourceCode(source); profile->scripts()->insert(script); // run the script on the already loaded views // this has to be deferred as it could mess with the storage initialization on startup if (mainWindow) QMetaObject::invokeMethod(mainWindow, "runScriptOnOpenViews", Qt::QueuedConnection, Q_ARG(QString, source)); } BrowserApplication::BrowserApplication(int &argc, char **argv) : QApplication(argc, argv) , m_localServer(0) , m_privateProfile(0) , m_privateBrowsing(false) { QCoreApplication::setOrganizationName(QLatin1String("Qt")); QCoreApplication::setApplicationName(QLatin1String("demobrowser")); QCoreApplication::setApplicationVersion(QLatin1String("0.1")); QString serverName = QCoreApplication::applicationName() + QString::fromLatin1(QT_VERSION_STR).remove('.') + QLatin1String("webengine"); QLocalSocket socket; socket.connectToServer(serverName); if (socket.waitForConnected(500)) { QTextStream stream(&socket); stream << getCommandLineUrlArgument(); stream.flush(); socket.waitForBytesWritten(); return; } #if defined(Q_OS_OSX) QApplication::setQuitOnLastWindowClosed(false); #else QApplication::setQuitOnLastWindowClosed(true); #endif m_localServer = new QLocalServer(this); connect(m_localServer, SIGNAL(newConnection()), this, SLOT(newLocalSocketConnection())); if (!m_localServer->listen(serverName) && m_localServer->serverError() == QAbstractSocket::AddressInUseError) { QLocalServer::removeServer(serverName); if (!m_localServer->listen(serverName)) qWarning("Could not create local socket %s.", qPrintable(serverName)); } #ifndef QT_NO_OPENSSL if (!QSslSocket::supportsSsl()) { QMessageBox::information(0, "Demo Browser", "This system does not support OpenSSL. SSL websites will not be available."); } #endif QDesktopServices::setUrlHandler(QLatin1String("http"), this, "openUrl"); QString localSysName = QLocale::system().name(); installTranslator(QLatin1String("qt_") + localSysName); QSettings settings; settings.beginGroup(QLatin1String("sessions")); m_lastSession = settings.value(QLatin1String("lastSession")).toByteArray(); settings.endGroup(); #if defined(Q_OS_OSX) connect(this, SIGNAL(lastWindowClosed()), this, SLOT(lastWindowClosed())); #endif QTimer::singleShot(0, this, SLOT(postLaunch())); } BrowserApplication::~BrowserApplication() { delete s_downloadManager; for (int i = 0; i < m_mainWindows.size(); ++i) { BrowserMainWindow *window = m_mainWindows.at(i); delete window; } delete s_networkAccessManager; delete s_bookmarksManager; } void BrowserApplication::lastWindowClosed() { #if defined(Q_OS_OSX) clean(); BrowserMainWindow *mw = new BrowserMainWindow; mw->slotHome(); m_mainWindows.prepend(mw); #endif } BrowserApplication *BrowserApplication::instance() { return (static_cast<BrowserApplication *>(QCoreApplication::instance())); } void BrowserApplication::quitBrowser() { #if defined(Q_OS_OSX) clean(); int tabCount = 0; for (int i = 0; i < m_mainWindows.count(); ++i) { tabCount += m_mainWindows.at(i)->tabWidget()->count(); } if (tabCount > 1) { int ret = QMessageBox::warning(mainWindow(), QString(), tr("There are %1 windows and %2 tabs open\n" "Do you want to quit anyway?").arg(m_mainWindows.count()).arg(tabCount), QMessageBox::Yes | QMessageBox::No, QMessageBox::No); if (ret == QMessageBox::No) return; } exit(0); #endif } /*! Any actions that can be delayed until the window is visible */ void BrowserApplication::postLaunch() { QString directory = QStandardPaths::writableLocation(QStandardPaths::DataLocation); if (directory.isEmpty()) directory = QDir::homePath() + QLatin1String("/.") + QCoreApplication::applicationName(); #if defined(QWEBENGINESETTINGS_PATHS) QWebEngineSettings::setIconDatabasePath(directory); QWebEngineSettings::setOfflineStoragePath(directory); #endif setWindowIcon(QIcon(QLatin1String(":demobrowser.svg"))); loadSettings(); // newMainWindow() needs to be called in main() for this to happen if (m_mainWindows.count() > 0) { const QString url = getCommandLineUrlArgument(); if (!url.isEmpty()) { mainWindow()->loadPage(url); } else { mainWindow()->slotHome(); } } BrowserApplication::historyManager(); } void BrowserApplication::loadSettings() { QSettings settings; settings.beginGroup(QLatin1String("websettings")); QWebEngineSettings *defaultSettings = QWebEngineSettings::globalSettings(); QWebEngineProfile *defaultProfile = QWebEngineProfile::defaultProfile(); QString standardFontFamily = defaultSettings->fontFamily(QWebEngineSettings::StandardFont); int standardFontSize = defaultSettings->fontSize(QWebEngineSettings::DefaultFontSize); QFont standardFont = QFont(standardFontFamily, standardFontSize); standardFont = qvariant_cast<QFont>(settings.value(QLatin1String("standardFont"), standardFont)); defaultSettings->setFontFamily(QWebEngineSettings::StandardFont, standardFont.family()); defaultSettings->setFontSize(QWebEngineSettings::DefaultFontSize, standardFont.pointSize()); QString fixedFontFamily = defaultSettings->fontFamily(QWebEngineSettings::FixedFont); int fixedFontSize = defaultSettings->fontSize(QWebEngineSettings::DefaultFixedFontSize); QFont fixedFont = QFont(fixedFontFamily, fixedFontSize); fixedFont = qvariant_cast<QFont>(settings.value(QLatin1String("fixedFont"), fixedFont)); defaultSettings->setFontFamily(QWebEngineSettings::FixedFont, fixedFont.family()); defaultSettings->setFontSize(QWebEngineSettings::DefaultFixedFontSize, fixedFont.pointSize()); defaultSettings->setAttribute(QWebEngineSettings::JavascriptEnabled, settings.value(QLatin1String("enableJavascript"), true).toBool()); defaultSettings->setAttribute(QWebEngineSettings::ScrollAnimatorEnabled, settings.value(QLatin1String("enableScrollAnimator"), true).toBool()); defaultSettings->setAttribute(QWebEngineSettings::PluginsEnabled, settings.value(QLatin1String("enablePlugins"), true).toBool()); defaultSettings->setAttribute(QWebEngineSettings::FullScreenSupportEnabled, true); QString css = settings.value(QLatin1String("userStyleSheet")).toString(); setUserStyleSheet(defaultProfile, css, mainWindow()); defaultProfile->setHttpUserAgent(settings.value(QLatin1String("httpUserAgent")).toString()); defaultProfile->setHttpAcceptLanguage(settings.value(QLatin1String("httpAcceptLanguage")).toString()); switch (settings.value(QLatin1String("faviconDownloadMode"), 1).toInt()) { case 0: defaultSettings->setAttribute(QWebEngineSettings::AutoLoadIconsForPage, false); break; case 1: defaultSettings->setAttribute(QWebEngineSettings::AutoLoadIconsForPage, true); defaultSettings->setAttribute(QWebEngineSettings::TouchIconsEnabled, false); break; case 2: defaultSettings->setAttribute(QWebEngineSettings::AutoLoadIconsForPage, true); defaultSettings->setAttribute(QWebEngineSettings::TouchIconsEnabled, true); break; } settings.endGroup(); settings.beginGroup(QLatin1String("cookies")); QWebEngineProfile::PersistentCookiesPolicy persistentCookiesPolicy = QWebEngineProfile::PersistentCookiesPolicy(settings.value(QLatin1String("persistentCookiesPolicy"), QWebEngineProfile::AllowPersistentCookies).toInt()); defaultProfile->setPersistentCookiesPolicy(persistentCookiesPolicy); QString pdataPath = settings.value(QLatin1String("persistentDataPath")).toString(); defaultProfile->setPersistentStoragePath(pdataPath); settings.endGroup(); settings.beginGroup(QLatin1String("proxy")); QNetworkProxy proxy; if (settings.value(QLatin1String("enabled"), false).toBool()) { if (settings.value(QLatin1String("type"), 0).toInt() == 0) proxy = QNetworkProxy::Socks5Proxy; else proxy = QNetworkProxy::HttpProxy; proxy.setHostName(settings.value(QLatin1String("hostName")).toString()); proxy.setPort(settings.value(QLatin1String("port"), 1080).toInt()); proxy.setUser(settings.value(QLatin1String("userName")).toString()); proxy.setPassword(settings.value(QLatin1String("password")).toString()); QNetworkProxy::setApplicationProxy(proxy); } settings.endGroup(); } QList<BrowserMainWindow*> BrowserApplication::mainWindows() { clean(); QList<BrowserMainWindow*> list; for (int i = 0; i < m_mainWindows.count(); ++i) list.append(m_mainWindows.at(i)); return list; } void BrowserApplication::clean() { // cleanup any deleted main windows first for (int i = m_mainWindows.count() - 1; i >= 0; --i) if (m_mainWindows.at(i).isNull()) m_mainWindows.removeAt(i); } void BrowserApplication::saveSession() { if (m_privateBrowsing) return; clean(); QSettings settings; settings.beginGroup(QLatin1String("sessions")); QByteArray data; QBuffer buffer(&data); QDataStream stream(&buffer); buffer.open(QIODevice::ReadWrite); stream << m_mainWindows.count(); for (int i = 0; i < m_mainWindows.count(); ++i) stream << m_mainWindows.at(i)->saveState(); settings.setValue(QLatin1String("lastSession"), data); settings.endGroup(); } bool BrowserApplication::canRestoreSession() const { return !m_lastSession.isEmpty(); } void BrowserApplication::restoreLastSession() { QList<QByteArray> windows; QBuffer buffer(&m_lastSession); QDataStream stream(&buffer); buffer.open(QIODevice::ReadOnly); int windowCount; stream >> windowCount; for (int i = 0; i < windowCount; ++i) { QByteArray windowState; stream >> windowState; windows.append(windowState); } for (int i = 0; i < windows.count(); ++i) { BrowserMainWindow *newWindow = 0; if (m_mainWindows.count() == 1 && mainWindow()->tabWidget()->count() == 1 && mainWindow()->currentTab()->url() == QUrl()) { newWindow = mainWindow(); } else { newWindow = newMainWindow(); } newWindow->restoreState(windows.at(i)); } } bool BrowserApplication::isTheOnlyBrowser() const { return (m_localServer != 0); } void BrowserApplication::installTranslator(const QString &name) { QTranslator *translator = new QTranslator(this); translator->load(name, QLibraryInfo::location(QLibraryInfo::TranslationsPath)); QApplication::installTranslator(translator); } QString BrowserApplication::getCommandLineUrlArgument() const { const QStringList args = QCoreApplication::arguments(); if (args.count() > 1) { const QString lastArg = args.last(); const bool isValidUrl = QUrl::fromUserInput(lastArg).isValid(); if (isValidUrl) return lastArg; } return QString(); } #if defined(Q_OS_OSX) bool BrowserApplication::event(QEvent* event) { switch (event->type()) { case QEvent::ApplicationActivate: { clean(); if (!m_mainWindows.isEmpty()) { BrowserMainWindow *mw = mainWindow(); if (mw && !mw->isMinimized()) { mainWindow()->show(); } return true; } } case QEvent::FileOpen: if (!m_mainWindows.isEmpty()) { mainWindow()->loadPage(static_cast<QFileOpenEvent *>(event)->file()); return true; } default: break; } return QApplication::event(event); } #endif void BrowserApplication::openUrl(const QUrl &url) { mainWindow()->loadPage(url.toString()); } BrowserMainWindow *BrowserApplication::newMainWindow() { BrowserMainWindow *browser = new BrowserMainWindow(); m_mainWindows.prepend(browser); browser->show(); return browser; } BrowserMainWindow *BrowserApplication::mainWindow() { clean(); if (m_mainWindows.isEmpty()) newMainWindow(); return m_mainWindows[0]; } void BrowserApplication::newLocalSocketConnection() { QLocalSocket *socket = m_localServer->nextPendingConnection(); if (!socket) return; socket->waitForReadyRead(1000); QTextStream stream(socket); QString url; stream >> url; if (!url.isEmpty()) { QSettings settings; settings.beginGroup(QLatin1String("general")); int openLinksIn = settings.value(QLatin1String("openLinksIn"), 0).toInt(); settings.endGroup(); if (openLinksIn == 1) newMainWindow(); else mainWindow()->tabWidget()->newTab(); openUrl(url); } delete socket; mainWindow()->raise(); mainWindow()->activateWindow(); } CookieJar *BrowserApplication::cookieJar() { #if defined(QWEBENGINEPAGE_SETNETWORKACCESSMANAGER) return (CookieJar*)networkAccessManager()->cookieJar(); #else return 0; #endif } DownloadManager *BrowserApplication::downloadManager() { if (!s_downloadManager) { s_downloadManager = new DownloadManager(); } return s_downloadManager; } QNetworkAccessManager *BrowserApplication::networkAccessManager() { if (!s_networkAccessManager) { s_networkAccessManager = new QNetworkAccessManager(); } return s_networkAccessManager; } HistoryManager *BrowserApplication::historyManager() { if (!s_historyManager) s_historyManager = new HistoryManager(); return s_historyManager; } BookmarksManager *BrowserApplication::bookmarksManager() { if (!s_bookmarksManager) { s_bookmarksManager = new BookmarksManager; } return s_bookmarksManager; } QIcon BrowserApplication::icon(const QUrl &url) const { #if defined(QTWEBENGINE_ICONDATABASE) QIcon icon = QWebEngineSettings::iconForUrl(url); if (!icon.isNull()) return icon.pixmap(16, 16); #else Q_UNUSED(url); #endif return defaultIcon(); } QIcon BrowserApplication::defaultIcon() const { if (m_defaultIcon.isNull()) m_defaultIcon = QIcon(QLatin1String(":defaulticon.png")); return m_defaultIcon; } void BrowserApplication::setPrivateBrowsing(bool privateBrowsing) { if (m_privateBrowsing == privateBrowsing) return; m_privateBrowsing = privateBrowsing; if (privateBrowsing) { if (!m_privateProfile) m_privateProfile = new QWebEngineProfile(this); Q_FOREACH (BrowserMainWindow* window, mainWindows()) { window->tabWidget()->setProfile(m_privateProfile); } } else { Q_FOREACH (BrowserMainWindow* window, mainWindows()) { window->tabWidget()->setProfile(QWebEngineProfile::defaultProfile()); window->m_lastSearch = QString(); window->tabWidget()->clear(); } } emit privateBrowsingChanged(privateBrowsing); }

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