content/public/renderer/render_process_observer.h

   1 // Copyright (c) 2012 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 CONTENT_PUBLIC_RENDERER_RENDER_PROCESS_OBSERVER_H_
   6 #define CONTENT_PUBLIC_RENDERER_RENDER_PROCESS_OBSERVER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "content/common/content_export.h"
  10
  11 namespace IPC {
  12 class Message;
  13 }
  14
  15 namespace content {
  16
  17 // Base class for objects that want to filter control IPC messages and get
  18 // notified of events.
  19 class CONTENT_EXPORT RenderProcessObserver {
  20  public:
  21   RenderProcessObserver() {}
  22   virtual ~RenderProcessObserver() {}
  23
  24   // Allows filtering of control messages.
  25   virtual bool OnControlMessageReceived(const IPC::Message& message);
  26
  27   // Notification that the render process is shutting down.
  28   virtual void OnRenderProcessShutdown() {}
  29
  30   // Called right after the WebKit API is initialized.
  31   virtual void WebKitInitialized() {}
  32
  33   // Called when the renderer cache of the plugin list has changed.
  34   virtual void PluginListChanged() {}
  35
  36   virtual void IdleNotification() {}
  37
  38   // Called when the network state changes.
  39   virtual void NetworkStateChanged(bool online) {}
  40
  41  private:
  42   DISALLOW_COPY_AND_ASSIGN(RenderProcessObserver);
  43 };
  44
  45 }  // namespace content
  46
  47 #endif  // CONTENT_PUBLIC_RENDERER_RENDER_PROCESS_OBSERVER_H_