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_drag_gesture.h"
  11 #include "content/browser/renderer_host/input/synthetic_smooth_scroll_gesture.h"
  12 #include "content/browser/renderer_host/input/synthetic_tap_gesture.h"
  13
  14 namespace content {
  15 namespace {
  16
  17 template <typename GestureType, typename GestureParamsType>
  18 static scoped_ptr<SyntheticGesture> CreateGesture(
  19     const SyntheticGestureParams& gesture_params) {
  20   return scoped_ptr<SyntheticGesture>(
  21       new GestureType(*GestureParamsType::Cast(&gesture_params)));
  22 }
  23
  24 }  // namespace
  25
  26 SyntheticGesture::SyntheticGesture() {}
  27
  28 SyntheticGesture::~SyntheticGesture() {}
  29
  30 scoped_ptr<SyntheticGesture> SyntheticGesture::Create(
  31     const SyntheticGestureParams& gesture_params) {
  32   switch (gesture_params.GetGestureType()) {
  33     case SyntheticGestureParams::SMOOTH_SCROLL_GESTURE:
  34       return CreateGesture<SyntheticSmoothScrollGesture,
  35                            SyntheticSmoothScrollGestureParams>(gesture_params);
  36     case SyntheticGestureParams::SMOOTH_DRAG_GESTURE:
  37       return CreateGesture<SyntheticSmoothDragGesture,
  38                            SyntheticSmoothDragGestureParams>(gesture_params);
  39     case SyntheticGestureParams::PINCH_GESTURE:
  40       return CreateGesture<SyntheticPinchGesture,
  41                            SyntheticPinchGestureParams>(gesture_params);
  42     case SyntheticGestureParams::TAP_GESTURE:
  43       return CreateGesture<SyntheticTapGesture,
  44                            SyntheticTapGestureParams>(gesture_params);
  45   }
  46   NOTREACHED() << "Invalid synthetic gesture type";
  47   return scoped_ptr<SyntheticGesture>();
  48 }
  49
  50 // static
  51 double SyntheticGesture::ConvertTimestampToSeconds(
  52     const base::TimeTicks& timestamp) {
  53   return (timestamp - base::TimeTicks()).InSecondsF();
  54 }
  55
  56 }  // namespace content