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      1 // Copyright (c) 2011 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_RENDERER_IDLE_USER_DETECTOR_H_
      6 #define CONTENT_RENDERER_IDLE_USER_DETECTOR_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "content/public/renderer/render_view_observer.h"
     10 
     11 namespace WebKit {
     12 class WebInputEvent;
     13 }
     14 
     15 namespace ui {
     16 struct LatencyInfo;
     17 }
     18 
     19 namespace content {
     20 
     21 // Class which observes user input events and postpones
     22 // idle notifications if the user is active.
     23 class IdleUserDetector : public RenderViewObserver {
     24  public:
     25   IdleUserDetector(RenderView* render_view);
     26   virtual ~IdleUserDetector();
     27 
     28  private:
     29   // RenderViewObserver implementation:
     30   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     31 
     32   void OnHandleInputEvent(const WebKit::WebInputEvent* event,
     33                           const ui::LatencyInfo& latency_info,
     34                           bool is_keyboard_shortcut);
     35 
     36   DISALLOW_COPY_AND_ASSIGN(IdleUserDetector);
     37 };
     38 
     39 }  // namespace content
     40 
     41 #endif  // CONTENT_RENDERER_IDLE_USER_DETECTOR_H_
     42