blob: e0d69a1ffa7fb332376b7447688c50a1cfae9bf9 [file] [log] [blame]
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_SYSTEM_OBSERVER_H_
#define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_SYSTEM_OBSERVER_H_
#include "base/macros.h"
#include "base/scoped_observer.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "extensions/browser/extension_registry_observer.h"
namespace content {
class BrowserContext;
}
namespace extensions {
class ExtensionRegistry;
}
class NotificationUIManager;
// The content::NotificationObserver observes system status change and sends
// events to NotificationUIManager.
class NotificationSystemObserver : public content::NotificationObserver,
extensions::ExtensionRegistryObserver {
public:
explicit NotificationSystemObserver(NotificationUIManager* ui_manager);
~NotificationSystemObserver() override;
protected:
// content::NotificationObserver override.
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// extensions::ExtensionRegistryObserver override.
void OnExtensionUnloaded(content::BrowserContext* browser_context,
const extensions::Extension* extension,
extensions::UnloadedExtensionReason reason) override;
void OnShutdown(extensions::ExtensionRegistry* registry) override;
private:
// Registrar for the other kind of notifications (event signaling).
content::NotificationRegistrar registrar_;
NotificationUIManager* ui_manager_;
ScopedObserver<extensions::ExtensionRegistry,
extensions::ExtensionRegistryObserver>
extension_registry_observer_;
DISALLOW_COPY_AND_ASSIGN(NotificationSystemObserver);
};
#endif // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_SYSTEM_OBSERVER_H_