src/content/renderer/compositor_bindings/web_transform_animation_curve_impl.cc

   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::WebCompositorAnimationCurve::AnimationCurveType
  25 WebTransformAnimationCurveImpl::type() const {
  26   return WebCompositorAnimationCurve::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