chromium/ui/message_center/message_center.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_MESSAGE_CENTER_MESSAGE_CENTER_H_
#define UI_MESSAGE_CENTER_MESSAGE_CENTER_H_

#include <stddef.h>

#include <memory>
#include <string>

#include "ui/message_center/message_center_export.h"
#include "ui/message_center/message_center_types.h"
#include "ui/message_center/notification_list.h"
#include "ui/message_center/public/cpp/notification.h"
#include "ui/message_center/public/cpp/notifier_id.h"

class DownloadNotification;
class DownloadNotificationTestBase;

// Interface to manage the NotificationList. The client (e.g. Chrome) calls
// [Add|Remove|Update]Notification to create and update notifications in the
// list. It also sends those changes to its observers when a notification
// is shown, closed, or clicked on.
//
// MessageCenter is agnostic of profiles; it uses the string returned by
// Notification::id() to uniquely identify a notification. It is
// the caller's responsibility to formulate the id so that 2 different
// notification should have different ids. For example, if the caller supports
// multiple profiles, then caller should encode both profile characteristics and
// notification front end's notification id into a new id and set it into the
// notification instance before passing that in. Consequently the id passed to
// observers will be this unique id, which can be used with MessageCenter
// interface but probably not higher level interfaces.

namespace message_center {

namespace test {
class MessagePopupCollectionTest;
}

class LockScreenController;
class MessageCenterObserver;
class MessageCenterImplTest;
class NotificationBlocker;

class MESSAGE_CENTER_EXPORT MessageCenter { … };

}  // namespace message_center

#endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_H_