/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWebEngine module 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
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** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
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** $QT_END_LICENSE$
**
****************************************************************************/

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#ifndef WEB_ENGINE_SETTINGS_H
#define WEB_ENGINE_SETTINGS_H

#include <QtWebEngineCore/private/qtwebenginecoreglobal_p.h>
#include <QtWebEngineCore/qwebenginesettings.h>
#include <QScopedPointer>
#include <QHash>
#include <QUrl>
#include <QSet>
#include <QTimer>

namespace content {
class WebContents;
}

namespace blink {
struct RendererPreferences;
namespace web_pref {
struct WebPreferences;
}
}
namespace QtWebEngineCore {

class WebContentsAdapter;

class WebEngineSettings {
public:
    static WebEngineSettings* get(QWebEngineSettings *settings) { return settings->d_ptr.data(); }

    explicit WebEngineSettings(WebEngineSettings *parentSettings = nullptr);
    ~WebEngineSettings();

    void setParentSettings(WebEngineSettings *parentSettings);

    void overrideWebPreferences(content::WebContents *webContents, blink::web_pref::WebPreferences *prefs);

    void setAttribute(QWebEngineSettings::WebAttribute, bool on);
    bool testAttribute(QWebEngineSettings::WebAttribute) const;
    void resetAttribute(QWebEngineSettings::WebAttribute);
    bool isAttributeExplicitlySet(QWebEngineSettings::WebAttribute) const;

    void setFontFamily(QWebEngineSettings::FontFamily, const QString &);
    QString fontFamily(QWebEngineSettings::FontFamily);
    void resetFontFamily(QWebEngineSettings::FontFamily);

    void setFontSize(QWebEngineSettings::FontSize type, int size);
    int fontSize(QWebEngineSettings::FontSize type) const;
    void resetFontSize(QWebEngineSettings::FontSize type);

    void setDefaultTextEncoding(const QString &encoding);
    QString defaultTextEncoding() const;

    void setUnknownUrlSchemePolicy(QWebEngineSettings::UnknownUrlSchemePolicy policy);
    QWebEngineSettings::UnknownUrlSchemePolicy unknownUrlSchemePolicy() const;

    void scheduleApply();

    void scheduleApplyRecursively();

    bool getJavaScriptCanOpenWindowsAutomatically();

private:
    void initDefaults();
    void doApply();
    void applySettingsToWebPreferences(blink::web_pref::WebPreferences *);
    bool applySettingsToRendererPreferences(blink::RendererPreferences *);
    void setWebContentsAdapter(WebContentsAdapter *adapter) { m_adapter = adapter; }

    WebContentsAdapter* m_adapter;
    QHash<QWebEngineSettings::WebAttribute, bool> m_attributes;
    QHash<QWebEngineSettings::FontFamily, QString> m_fontFamilies;
    QHash<QWebEngineSettings::FontSize, int> m_fontSizes;
    QString m_defaultEncoding;
    QScopedPointer<blink::web_pref::WebPreferences> webPreferences;
    QTimer m_batchTimer;

    WebEngineSettings *parentSettings;
    QSet<WebEngineSettings *> childSettings;

    static QHash<QWebEngineSettings::WebAttribute, bool> s_defaultAttributes;
    static QHash<QWebEngineSettings::FontFamily, QString> s_defaultFontFamilies;
    static QHash<QWebEngineSettings::FontSize, int> s_defaultFontSizes;
    QWebEngineSettings::UnknownUrlSchemePolicy m_unknownUrlSchemePolicy;

    friend class WebContentsAdapter;
};

} // namespace QtWebEngineCore

#endif // WEB_ENGINE_SETTINGS_H