/*

 * Copyright (C) 2009 Google Inc. All rights reserved.

 * Copyright (C) 2009 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 Notification_h  

#define Notification_h

#include "ActiveDOMObject.h"

#include "AtomicStringHash.h"

#include "Event.h"

#include "EventListener.h"

#include "EventNames.h"

#include "EventTarget.h"

#include "ExceptionCode.h"

#include "KURL.h"

#include "NotificationPresenter.h"

#include "NotificationContents.h"

#include "RegisteredEventListener.h"

#include "SharedBuffer.h"

#include "TextDirection.h"

#include "ThreadableLoader.h"

#include "ThreadableLoaderClient.h"

#include <wtf/OwnPtr.h>

#include <wtf/PassRefPtr.h>

#include <wtf/RefCounted.h>

#include <wtf/RefPtr.h>

#if ENABLE(NOTIFICATIONS)

namespace WebCore {

    class WorkerContext;

    class Notification : public RefCounted<Notification>, public ActiveDOMObject, public ThreadableLoaderClient, public EventTarget {

    public:

        static PassRefPtr<Notification> create(const KURL& url, ScriptExecutionContext* context, ExceptionCode& ec, NotificationPresenter* provider) { return adoptRef(new Notification(url, context, ec, provider)); }

        static PassRefPtr<Notification> create(const NotificationContents& contents, ScriptExecutionContext* context, ExceptionCode& ec, NotificationPresenter* provider) { return adoptRef(new Notification(contents, context, ec, provider)); }

        virtual ~Notification();

        void show();

        void cancel();

        bool isHTML() { return m_isHTML; }

        KURL url() { return m_notificationURL; }

        KURL iconURL() { return m_contents.icon(); }

        NotificationContents& contents() { return m_contents; }

        String dir() const { return m_direction; }

        void setDir(const String& dir) { m_direction = dir; }

        String replaceId() const { return m_replaceId; }

        void setReplaceId(const String& replaceId) { m_replaceId = replaceId; }

        TextDirection direction() const { return dir() == "rtl" ? RTL : LTR; }

        DEFINE_ATTRIBUTE_EVENT_LISTENER(display);

        DEFINE_ATTRIBUTE_EVENT_LISTENER(error);

        DEFINE_ATTRIBUTE_EVENT_LISTENER(close);

        using RefCounted<Notification>::ref;

        using RefCounted<Notification>::deref;

        // EventTarget interface

        virtual ScriptExecutionContext* scriptExecutionContext() const { return ActiveDOMObject::scriptExecutionContext(); }

        virtual Notification* toNotification() { return this; }

        // ActiveDOMObject interface

        virtual void contextDestroyed();

        void stopLoading();

        SharedBuffer* iconData() { return m_iconData.get(); }

        void releaseIconData() { m_iconData = 0; }

        // Called if the presenter is deleted before the notification is GC'd

        void detachPresenter() { m_presenter = 0; }

        virtual void didReceiveResponse(const ResourceResponse&);

        virtual void didReceiveData(const char* data, int lengthReceived);

        virtual void didFinishLoading(unsigned long identifier);

        virtual void didFail(const ResourceError&);

        virtual void didFailRedirectCheck();

        virtual void didReceiveAuthenticationCancellation(const ResourceResponse&);

    private:

        Notification(const KURL&, ScriptExecutionContext*, ExceptionCode&, NotificationPresenter*);

        Notification(const NotificationContents&, ScriptExecutionContext*, ExceptionCode&, NotificationPresenter*);

        // EventTarget interface

        virtual void refEventTarget() { ref(); }

        virtual void derefEventTarget() { deref(); }

        virtual EventTargetData* eventTargetData();

        virtual EventTargetData* ensureEventTargetData();

        void startLoading();

        void finishLoading();

        bool m_isHTML;

        KURL m_notificationURL;

        NotificationContents m_contents;

        String m_direction;

        String m_replaceId;

        enum NotificationState {

            Idle = 0,

            Loading = 1,

            Showing = 2,

            Cancelled = 3

        };

        NotificationState m_state;

        NotificationPresenter* m_presenter;

        EventTargetData m_eventTargetData;

        RefPtr<ThreadableLoader> m_loader;

        RefPtr<SharedBuffer> m_iconData;

    };

} // namespace WebCore

#endif // ENABLE(NOTIFICATIONS)

#endif // Notifications_h