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      1 // Copyright 2014 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/renderer/compositor_bindings/web_transform_animation_curve_impl.h"
      6 
      7 #include "cc/animation/keyframed_animation_curve.h"
      8 #include "cc/animation/timing_function.h"
      9 #include "cc/animation/transform_operations.h"
     10 #include "content/renderer/compositor_bindings/web_animation_curve_common.h"
     11 #include "content/renderer/compositor_bindings/web_transform_operations_impl.h"
     12 
     13 using blink::WebTransformKeyframe;
     14 
     15 namespace content {
     16 
     17 WebTransformAnimationCurveImpl::WebTransformAnimationCurveImpl()
     18     : curve_(cc::KeyframedTransformAnimationCurve::Create()) {
     19 }
     20 
     21 WebTransformAnimationCurveImpl::~WebTransformAnimationCurveImpl() {
     22 }
     23 
     24 blink::WebAnimationCurve::AnimationCurveType
     25 WebTransformAnimationCurveImpl::type() const {
     26   return WebAnimationCurve::AnimationCurveTypeTransform;
     27 }
     28 
     29 void WebTransformAnimationCurveImpl::add(const WebTransformKeyframe& keyframe) {
     30   add(keyframe, TimingFunctionTypeEase);
     31 }
     32 
     33 void WebTransformAnimationCurveImpl::add(const WebTransformKeyframe& keyframe,
     34                                          TimingFunctionType type) {
     35   const cc::TransformOperations& transform_operations =
     36       static_cast<const WebTransformOperationsImpl&>(keyframe.value())
     37           .AsTransformOperations();
     38   curve_->AddKeyframe(cc::TransformKeyframe::Create(
     39       keyframe.time(), transform_operations, CreateTimingFunction(type)));
     40 }
     41 
     42 void WebTransformAnimationCurveImpl::add(const WebTransformKeyframe& keyframe,
     43                                          double x1,
     44                                          double y1,
     45                                          double x2,
     46                                          double y2) {
     47   const cc::TransformOperations& transform_operations =
     48       static_cast<const WebTransformOperationsImpl&>(keyframe.value())
     49           .AsTransformOperations();
     50   curve_->AddKeyframe(cc::TransformKeyframe::Create(
     51       keyframe.time(),
     52       transform_operations,
     53       cc::CubicBezierTimingFunction::Create(x1, y1, x2, y2)
     54           .PassAs<cc::TimingFunction>()));
     55 }
     56 
     57 scoped_ptr<cc::AnimationCurve>
     58 WebTransformAnimationCurveImpl::CloneToAnimationCurve() const {
     59   return curve_->Clone();
     60 }
     61 
     62 }  // namespace content
     63 
     64