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// Copyright (C) 2018 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#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"))
: QStringLiteral("native");
return name;
}
class QNullWebViewSettings : public QAbstractWebViewSettings
{
public:
explicit QNullWebViewSettings(QObject *p) : QAbstractWebViewSettings(p) {}
bool localStorageEnabled() const override { return false; }
bool javaScriptEnabled() const override { return false; }
bool localContentCanAccessFileUrls() const override { return false; }
bool allowFileAccess() const override { return false; }
void setLocalContentCanAccessFileUrls(bool) override {}
void setJavaScriptEnabled(bool) override {}
void setLocalStorageEnabled(bool) override {}
void setAllowFileAccess(bool) override {}
};
class QNullWebView : public QAbstractWebView
{
public:
explicit QNullWebView(QObject *p = nullptr)
: QAbstractWebView(p)
, m_settings(new QNullWebViewSettings(this))
{}
QString httpUserAgent() const override { return QString(); }
void setHttpUserAgent(const QString &userAgent) override { Q_UNUSED(userAgent); }
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); }
void setCookie(const QString &domain, const QString &name, const QString &value) override
{ Q_UNUSED(domain); Q_UNUSED(name); Q_UNUSED(value); }
void deleteCookie(const QString &domain, const QString &name) override
{ Q_UNUSED(domain); Q_UNUSED(name); }
void deleteAllCookies() override {}
QWindow *nativeWindow() const override { return nullptr; }
protected:
QAbstractWebViewSettings *getSettings() const override
{
return m_settings;
}
private:
QNullWebViewSettings *m_settings = nullptr;
};
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 QList<QPluginParsedMetaData> metaDataList = loader->metaData();
if (metaDataList.isEmpty())
return false;
const auto &pluginMetaData = metaDataList.at(index);
Q_ASSERT(pluginMetaData.value(QtPluginMetaDataKeys::IID) == QLatin1String(QWebViewPluginInterface_iid));
const auto metaDataObject = pluginMetaData.value(QtPluginMetaDataKeys::MetaData).toMap();
return metaDataObject.value(QLatin1String("RequiresInit")).toBool();
}
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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