/*
 * Copyright (C) 2009 Google Inc. All rights reserved.
 * Copyright (C) 2011, 2012, 2015 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef NotificationCenter_h
#define NotificationCenter_h

#include "ActiveDOMObject.h"
#include "ExceptionCode.h"
#include "Timer.h"
#include <wtf/RefCounted.h>

#if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)

namespace WebCore {

class Notification;
class NotificationClient;
class VoidCallback;

class NotificationCenter : public RefCounted<NotificationCenter>, private ActiveDOMObject {
public:
    static Ref<NotificationCenter> create(ScriptExecutionContext*, NotificationClient*);

#if ENABLE(LEGACY_NOTIFICATIONS)
    RefPtr<Notification> createNotification(const String& iconURI, const String& title, const String& body, ExceptionCode&);

    int checkPermission();
    void requestPermission(const RefPtr<VoidCallback>&);
#endif

    NotificationClient* client() const { return m_client; }

    using ActiveDOMObject::hasPendingActivity;

private:
    NotificationCenter(ScriptExecutionContext*, NotificationClient*);

    void stop() override;
    const char* activeDOMObjectName() const override;
    bool canSuspendForPageCache() const override;

    void timerFired();

    NotificationClient* m_client;
    Vector<std::function<void ()>> m_callbacks;
    Timer m_timer;
};

} // namespace WebCore

#endif // ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)

#endif // NotificationCenter_h
