webkit/renderer/compositor_bindings/web_float_animation_curve_impl.cc

   1 // Copyright 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 #include "webkit/renderer/compositor_bindings/web_float_animation_curve_impl.h"
   6
   7 #include "cc/animation/animation_curve.h"
   8 #include "cc/animation/keyframed_animation_curve.h"
   9 #include "cc/animation/timing_function.h"
  10 #include "webkit/renderer/compositor_bindings/web_animation_curve_common.h"
  11
  12 using blink::WebFloatKeyframe;
  13
  14 namespace webkit {
  15
  16 WebFloatAnimationCurveImpl::WebFloatAnimationCurveImpl()
  17     : curve_(cc::KeyframedFloatAnimationCurve::Create()) {}
  18
  19 WebFloatAnimationCurveImpl::~WebFloatAnimationCurveImpl() {}
  20
  21 blink::WebAnimationCurve::AnimationCurveType
  22 WebFloatAnimationCurveImpl::type() const {
  23   return blink::WebAnimationCurve::AnimationCurveTypeFloat;
  24 }
  25
  26 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe) {
  27   add(keyframe, TimingFunctionTypeEase);
  28 }
  29
  30 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe,
  31                                      TimingFunctionType type) {
  32   curve_->AddKeyframe(cc::FloatKeyframe::Create(
  33       keyframe.time, keyframe.value, CreateTimingFunction(type)));
  34 }
  35
  36 void WebFloatAnimationCurveImpl::add(const WebFloatKeyframe& keyframe,
  37                                      double x1,
  38                                      double y1,
  39                                      double x2,
  40                                      double y2) {
  41   curve_->AddKeyframe(cc::FloatKeyframe::Create(
  42       keyframe.time,
  43       keyframe.value,
  44       cc::CubicBezierTimingFunction::Create(x1, y1, x2, y2)
  45           .PassAs<cc::TimingFunction>()));
  46 }
  47
  48 float WebFloatAnimationCurveImpl::getValue(double time) const {
  49   return curve_->GetValue(time);
  50 }
  51
  52 scoped_ptr<cc::AnimationCurve>
  53 WebFloatAnimationCurveImpl::CloneToAnimationCurve() const {
  54   return curve_->Clone();
  55 }
  56
  57 }  // namespace webkit