content/common/input/synthetic_smooth_scroll_gesture_params.cc

   1 // Copyright 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 #include "content/common/input/synthetic_smooth_scroll_gesture_params.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace content {
  10 namespace {
  11
  12 const float kDefaultSpeedInPixelsS = 800;
  13
  14 }  // namespace
  15
  16 SyntheticSmoothScrollGestureParams::SyntheticSmoothScrollGestureParams()
  17     : prevent_fling(true), speed_in_pixels_s(kDefaultSpeedInPixelsS) {}
  18
  19 SyntheticSmoothScrollGestureParams::SyntheticSmoothScrollGestureParams(
  20       const SyntheticSmoothScrollGestureParams& other)
  21     : SyntheticGestureParams(other),
  22       anchor(other.anchor),
  23       distances(other.distances),
  24       prevent_fling(other.prevent_fling),
  25       speed_in_pixels_s(other.speed_in_pixels_s) {}
  26
  27 SyntheticSmoothScrollGestureParams::~SyntheticSmoothScrollGestureParams() {}
  28
  29 SyntheticGestureParams::GestureType
  30 SyntheticSmoothScrollGestureParams::GetGestureType() const {
  31   return SMOOTH_SCROLL_GESTURE;
  32 }
  33
  34 const SyntheticSmoothScrollGestureParams*
  35 SyntheticSmoothScrollGestureParams::Cast(
  36     const SyntheticGestureParams* gesture_params) {
  37   DCHECK(gesture_params);
  38   DCHECK_EQ(SMOOTH_SCROLL_GESTURE, gesture_params->GetGestureType());
  39   return static_cast<const SyntheticSmoothScrollGestureParams*>(gesture_params);
  40 }
  41
  42 }  // namespace content