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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtWebView module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** 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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later 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 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwebviewfactory_p.h"
#include "qwebviewplugin_p.h"
#include <private/qfactoryloader_p.h>
#include <QtCore/qglobal.h>
QT_BEGIN_NAMESPACE
Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, (QWebViewPluginInterface_iid, QLatin1String("/webview")))
static QString getPluginName()
{
static const QString name = !qEnvironmentVariableIsEmpty("QT_WEBVIEW_PLUGIN")
? QString::fromLatin1(qgetenv("QT_WEBVIEW_PLUGIN"))
#ifdef Q_OS_MACOS
: QStringLiteral("webengine");
#else
: QStringLiteral("native");
#endif // Q_OS_MACOS
return name;
}
class QNullWebView : public QAbstractWebView
{
public:
void setParentView(QObject *view) override { Q_UNUSED(view); }
QObject *parentView() const override { return nullptr; }
void setGeometry(const QRect &geometry) override { Q_UNUSED(geometry); }
void setVisibility(QWindow::Visibility visibility) override { Q_UNUSED(visibility); }
void setVisible(bool visible) override { Q_UNUSED(visible); }
QString httpUserAgent() const override { return QString(); }
void setHttpUserAgent(const QString &userAgent) override { Q_UNUSED(userAgent) }
QUrl url() const override { return QUrl(); }
void setUrl(const QUrl &url) override { Q_UNUSED(url); }
bool canGoBack() const override { return false; }
bool canGoForward() const override { return false; }
QString title() const override { return QString(); }
int loadProgress() const override { return 0; }
bool isLoading() const override { return false; }
void goBack() override { }
void goForward() override { }
void stop() override { }
void reload() override { }
void loadHtml(const QString &html, const QUrl &baseUrl) override
{ Q_UNUSED(html); Q_UNUSED(baseUrl); }
void runJavaScriptPrivate(const QString &script, int callbackId) override
{ Q_UNUSED(script); Q_UNUSED(callbackId); }
};
QAbstractWebView *QWebViewFactory::createWebView()
{
QAbstractWebView *wv = nullptr;
QWebViewPlugin *plugin = getPlugin();
if (plugin)
wv = plugin->create(QStringLiteral("webview"));
if (!wv || !plugin) {
qWarning("No WebView plug-in found!");
wv = new QNullWebView;
}
return wv;
}
bool QWebViewFactory::requiresExtraInitializationSteps()
{
const QString pluginName = getPluginName();
const int index = pluginName.isEmpty() ? 0 : qMax<int>(0, loader->indexOf(pluginName));
const auto metaDataList = loader->metaData();
if (metaDataList.isEmpty())
return false;
const auto &pluginMetaData = metaDataList.at(index);
const auto iid = pluginMetaData.value(QLatin1String("IID"));
Q_ASSERT(iid == QJsonValue(QLatin1String(QWebViewPluginInterface_iid)));
const auto metaDataObject = pluginMetaData.value(QLatin1String("MetaData")).toObject();
const auto it = metaDataObject.find(QLatin1String("RequiresInit"));
if (it != pluginMetaData.constEnd())
return it->isBool() ? it->toBool() : false;
return false;
}
QWebViewPlugin *QWebViewFactory::getPlugin()
{
// Plugin loading logic:
// 1. Get plugin name - plugin name is either user specified or "native"
// - Exception: macOS, which will default to using "webengine" until the native plugin is matured.
// 2. If neither a user specified or "default" plugin exists, then the first available is used.
const QString pluginName = getPluginName();
const int index = pluginName.isEmpty() ? 0 : qMax<int>(0, loader->indexOf(pluginName));
return qobject_cast<QWebViewPlugin *>(loader->instance(index));
}
QT_END_NAMESPACE
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