/*

 * Copyright (C) 2009 Google 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 "Notification.h"

#include "NotificationContents.h"

#include "ScriptExecutionContext.h"

#include "WorkerThread.h"

#include <wtf/OwnPtr.h>

#include <wtf/PassRefPtr.h>

#include <wtf/RefCounted.h>

#include <wtf/RefPtr.h>

#if ENABLE(NOTIFICATIONS)

namespace WebCore {

    class NotificationCenter : public RefCounted<NotificationCenter>, public ActiveDOMObject { 

    public:

        static PassRefPtr<NotificationCenter> create(ScriptExecutionContext* context, NotificationPresenter* presenter) { return adoptRef(new NotificationCenter(context, presenter)); }

        PassRefPtr<Notification> createHTMLNotification(const String& URI, ExceptionCode& ec)

        {

            if (!presenter()) {

                ec = INVALID_STATE_ERR;

                return 0;

            }

            if (URI.isEmpty()) {

                ec = SYNTAX_ERR;

                return 0;

            }

            return Notification::create(m_scriptExecutionContext->completeURL(URI), context(), ec, presenter());

        }

        PassRefPtr<Notification> createNotification(const String& iconURI, const String& title, const String& body, ExceptionCode& ec)

        {

            if (!presenter()) {

                ec = INVALID_STATE_ERR;

                return 0;

            }

            NotificationContents contents(iconURI.isEmpty() ? KURL() : m_scriptExecutionContext->completeURL(iconURI), title, body);

            return Notification::create(contents, context(), ec, presenter());

        }

        ScriptExecutionContext* context() const { return m_scriptExecutionContext; }

        NotificationPresenter* presenter() const { return m_notificationPresenter; }

        int checkPermission();

        void requestPermission(PassRefPtr<VoidCallback> callback);

        void disconnectFrame();

    private:

        NotificationCenter(ScriptExecutionContext*, NotificationPresenter*);

        ScriptExecutionContext* m_scriptExecutionContext;

        NotificationPresenter* m_notificationPresenter;

    };

} // namespace WebCore

#endif // ENABLE(NOTIFICATIONS)

#endif // NotificationCenter_h