chrome/browser/notifications/notification_delegate.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
   6 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
   7
   8 #include <string>
   9
  10 #include "base/memory/ref_counted.h"
  11 #include "ui/message_center/notification_delegate.h"
  12
  13 namespace content {
  14 class WebContents;
  15 }
  16
  17 // Delegate for a notification. This class has two roles: to implement callback
  18 // methods for notification, and to provide an identity of the associated
  19 // notification.
  20 class NotificationDelegate : public message_center::NotificationDelegate {
  21  public:
  22   // Returns unique id of the notification.
  23   virtual std::string id() const = 0;
  24
  25   // Returns the id of renderer process which creates the notification, or -1.
  26   virtual int process_id() const;
  27
  28   // Returns the WebContents that generated the notification, or NULL.
  29   virtual content::WebContents* GetWebContents() const = 0;
  30
  31   // Lets the delegate know that no more rendering will be necessary.
  32   virtual void ReleaseRenderViewHost();
  33
  34  protected:
  35   virtual ~NotificationDelegate() {}
  36 };
  37
  38 #endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_