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      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
     53