1 files changed, 130 insertions, 0 deletions
diff --git a/src/webview/qwebviewfactory.cpp b/src/webview/qwebviewfactory.cpp
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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); }
+
+    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