content/browser/renderer_host/basic_mouse_wheel_smooth_scroll_gesture.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_BROWSER_RENDERER_HOST_BASIC_MOUSE_WHEEL_SMOOTH_SCROLL_GESTURE_
   6 #define CONTENT_BROWSER_RENDERER_HOST_BASIC_MOUSE_WHEEL_SMOOTH_SCROLL_GESTURE_
   7
   8 #include "base/time.h"
   9 #include "content/browser/renderer_host/smooth_scroll_calculator.h"
  10 #include "content/port/browser/smooth_scroll_gesture.h"
  11
  12 namespace content {
  13
  14 class RenderWidgetHost;
  15
  16 class BasicMouseWheelSmoothScrollGesture : public SmoothScrollGesture {
  17  public:
  18   BasicMouseWheelSmoothScrollGesture(bool scroll_down, int pixels_to_scroll,
  19                                      int mouse_event_x, int mouse_event_y);
  20
  21   virtual bool ForwardInputEvents(base::TimeTicks now,
  22                                   RenderWidgetHost* host) OVERRIDE;
  23  private:
  24   virtual ~BasicMouseWheelSmoothScrollGesture();
  25
  26   SmoothScrollCalculator smooth_scroll_calculator_;
  27
  28   bool scroll_down_;
  29   int pixels_scrolled_;
  30   int pixels_to_scroll_;
  31   int mouse_event_x_;
  32   int mouse_event_y_;
  33 };
  34
  35 }  // namespace content
  36
  37 #endif  // CONTENT_BROWSER_RENDERER_HOST_BASIC_MOUSE_WHEEL_SMOOTH_SCROLL_GESTURE_