Rename the widget browser example demobrowser

The browser example already uses the name demobrowser internally, this
changes the external name to make it easier to refer to explicitly, and
avoid users thinking fancybrowser is the better example.

Change-Id: Ic093eb4881352b5f796bf565df01edb929aba39c
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

1 files changed, 550 insertions, 0 deletions

diff --git a/examples/webenginewidgets/demobrowser/browserapplication.cpp b/examples/webenginewidgets/demobrowser/browserapplication.cpp
new file mode 100644
index 000000000..ba46fe092
--- /dev/null
+++ b/examples/webenginewidgets/demobrowser/browserapplication.cpp
@@ -0,0 +1,550 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#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);
+        QStringList args = QCoreApplication::arguments();
+        if (args.count() > 1)
+            stream << args.last();
+        else
+            stream << QString();
+        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)) {
+        if (m_localServer->serverError() == QAbstractSocket::AddressInUseError
+            && QFile::exists(m_localServer->serverName())) {
+            QFile::remove(m_localServer->serverName());
+            m_localServer->listen(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;
+}
+
+#if defined(Q_OS_OSX)
+void BrowserApplication::lastWindowClosed()
+{
+    clean();
+    BrowserMainWindow *mw = new BrowserMainWindow;
+    mw->slotHome();
+    m_mainWindows.prepend(mw);
+}
+#endif
+
+BrowserApplication *BrowserApplication::instance()
+{
+    return (static_cast<BrowserApplication *>(QCoreApplication::instance()));
+}
+
+#if defined(Q_OS_OSX)
+#include <QtWidgets/QMessageBox>
+void BrowserApplication::quitBrowser()
+{
+    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) {
+        QStringList args = QCoreApplication::arguments();
+        if (args.count() > 1)
+            mainWindow()->loadPage(args.last());
+        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());
+
+    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());
+    settings.endGroup();
+    settings.beginGroup(QLatin1String("cookies"));
+
+    QWebEngineProfile::PersistentCookiesPolicy persistentCookiesPolicy = QWebEngineProfile::PersistentCookiesPolicy(settings.value(QLatin1String("persistentCookiesPolicy")).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);
+}
+
+#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::null;
+            window->tabWidget()->clear();
+        }
+    }
+    emit privateBrowsingChanged(privateBrowsing);
+}