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