| /**************************************************************************** |
| ** |
| ** 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() |
| { |
| // The call to loader->indexOf(pluginName) will mess up winrt's main thread. |
| #ifdef Q_OS_WINRT |
| return false; |
| #endif |
| 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 |