content/browser/renderer_host/input/synthetic_gesture.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/browser/renderer_host/input/synthetic_gesture.h"
   6
   7 #include "base/logging.h"
   8 #include "content/browser/renderer_host/input/synthetic_gesture_target.h"
   9 #include "content/browser/renderer_host/input/synthetic_pinch_gesture.h"
  10 #include "content/browser/renderer_host/input/synthetic_smooth_scroll_gesture.h"
  11 #include "content/browser/renderer_host/input/synthetic_tap_gesture.h"
  12
  13 namespace content {
  14 namespace {
  15
  16 template <typename GestureType, typename GestureParamsType>
  17 static scoped_ptr<SyntheticGesture> CreateGesture(
  18     const SyntheticGestureParams& gesture_params) {
  19   return scoped_ptr<SyntheticGesture>(
  20       new GestureType(*GestureParamsType::Cast(&gesture_params)));
  21 }
  22
  23 }  // namespace
  24
  25 SyntheticGesture::SyntheticGesture() {}
  26
  27 SyntheticGesture::~SyntheticGesture() {}
  28
  29 scoped_ptr<SyntheticGesture> SyntheticGesture::Create(
  30     const SyntheticGestureParams& gesture_params) {
  31   switch (gesture_params.GetGestureType()) {
  32     case SyntheticGestureParams::SMOOTH_SCROLL_GESTURE:
  33       return CreateGesture<SyntheticSmoothScrollGesture,
  34                            SyntheticSmoothScrollGestureParams>(gesture_params);
  35     case SyntheticGestureParams::PINCH_GESTURE:
  36       return CreateGesture<SyntheticPinchGesture,
  37                            SyntheticPinchGestureParams>(gesture_params);
  38     case SyntheticGestureParams::TAP_GESTURE:
  39       return CreateGesture<SyntheticTapGesture,
  40                            SyntheticTapGestureParams>(gesture_params);
  41   }
  42   NOTREACHED() << "Invalid synthetic gesture type";
  43   return scoped_ptr<SyntheticGesture>();
  44 }
  45
  46 // static
  47 double SyntheticGesture::ConvertTimestampToSeconds(
  48     const base::TimeTicks& timestamp) {
  49   return (timestamp - base::TimeTicks()).InSecondsF();
  50 }
  51
  52 }  // namespace content