Define WebScrollOffsetAnimationCurveImpl

This defines WebScrollOffsetAnimationCurveImpl, which wraps a
cc::ScrollOffsetAnimationCurve. This is needed for
implementing the CSSOM Smooth Scroll API.

BUG=243871

Review URL: https://codereview.chromium.org/112933005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245645 0039d316-1c4b-4281-b951-d872f2087c98

cc/animation/animation.cc

@@ -32,8 +32,8 @@ static const char* const s_targetPropertyNames[] = {
   "Transform",
   "Opacity",
   "Filter",
-  "BackgroundColor",
-  "ScrollOffset"
+  "ScrollOffset",
+  "BackgroundColor"
 };
 
 COMPILE_ASSERT(static_cast<int>(cc::Animation::TargetPropertyEnumSize) ==

cc/animation/animation.h

@@ -42,8 +42,8 @@ class CC_EXPORT Animation {
     Transform = 0,
     Opacity,
     Filter,
-    BackgroundColor,
     ScrollOffset,
+    BackgroundColor,
     // This sentinel must be last.
     TargetPropertyEnumSize
   };

webkit/renderer/compositor_bindings/compositor_bindings.gyp

@@ -69,6 +69,8 @@
         'web_layer_impl_fixed_bounds.h',
         'web_nine_patch_layer_impl.cc',
         'web_nine_patch_layer_impl.h',
+        'web_scroll_offset_animation_curve_impl.cc',
+        'web_scroll_offset_animation_curve_impl.h',
         'web_scrollbar_layer_impl.cc',
         'web_scrollbar_layer_impl.h',
         'web_solid_color_layer_impl.cc',

webkit/renderer/compositor_bindings/web_animation_impl.cc

@@ -11,6 +11,7 @@
 #include "third_party/WebKit/public/platform/WebAnimationCurve.h"
 #include "webkit/renderer/compositor_bindings/web_filter_animation_curve_impl.h"
 #include "webkit/renderer/compositor_bindings/web_float_animation_curve_impl.h"
+#include "webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h"
 #include "webkit/renderer/compositor_bindings/web_transform_animation_curve_impl.h"
 
 using cc::Animation;
@@ -51,6 +52,14 @@ WebAnimationImpl::WebAnimationImpl(const WebAnimationCurve& web_curve,
       curve = filter_curve_impl->CloneToAnimationCurve();
       break;
     }
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+    case WebAnimationCurve::AnimationCurveTypeScrollOffset: {
+      const WebScrollOffsetAnimationCurveImpl* scroll_curve_impl =
+          static_cast<const WebScrollOffsetAnimationCurveImpl*>(&web_curve);
+      curve = scroll_curve_impl->CloneToAnimationCurve();
+      break;
+    }
+#endif
   }
   animation_ = Animation::Create(
       curve.Pass(),
@@ -109,5 +118,9 @@ COMPILE_ASSERT_MATCHING_ENUMS(
     WebAnimation::TargetPropertyOpacity, Animation::Opacity);
 COMPILE_ASSERT_MATCHING_ENUMS(
     WebAnimation::TargetPropertyFilter, Animation::Filter);
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+COMPILE_ASSERT_MATCHING_ENUMS(
+    WebAnimation::TargetPropertyScrollOffset, Animation::ScrollOffset);
+#endif
 
 }  // namespace webkit

webkit/renderer/compositor_bindings/web_compositor_support_impl.cc

@@ -19,6 +19,7 @@
 #include "webkit/renderer/compositor_bindings/web_image_layer_impl.h"
 #include "webkit/renderer/compositor_bindings/web_layer_impl.h"
 #include "webkit/renderer/compositor_bindings/web_nine_patch_layer_impl.h"
+#include "webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h"
 #include "webkit/renderer/compositor_bindings/web_scrollbar_layer_impl.h"
 #include "webkit/renderer/compositor_bindings/web_solid_color_layer_impl.h"
 #include "webkit/renderer/compositor_bindings/web_transform_animation_curve_impl.h"
@@ -40,6 +41,9 @@ using blink::WebScrollbar;
 using blink::WebScrollbarLayer;
 using blink::WebScrollbarThemeGeometry;
 using blink::WebScrollbarThemePainter;
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+using blink::WebScrollOffsetAnimationCurve;
+#endif
 using blink::WebSolidColorLayer;
 using blink::WebTransformAnimationCurve;
 using blink::WebTransformOperations;
@@ -106,6 +110,15 @@ WebFloatAnimationCurve* WebCompositorSupportImpl::createFloatAnimationCurve() {
   return new WebFloatAnimationCurveImpl();
 }
 
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+WebScrollOffsetAnimationCurve*
+WebCompositorSupportImpl::createScrollOffsetAnimationCurve(
+    blink::WebFloatPoint target_value,
+    blink::WebAnimationCurve::TimingFunctionType timing_function) {
+  return new WebScrollOffsetAnimationCurveImpl(target_value, timing_function);
+}
+#endif
+
 WebTransformAnimationCurve*
 WebCompositorSupportImpl::createTransformAnimationCurve() {
   return new WebTransformAnimationCurveImpl();

webkit/renderer/compositor_bindings/web_compositor_support_impl.h

@@ -7,6 +7,7 @@
 
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop_proxy.h"
+#include "third_party/WebKit/public/platform/WebAnimationCurve.h"
 #include "third_party/WebKit/public/platform/WebCompositorSupport.h"
 #include "third_party/WebKit/public/platform/WebLayer.h"
 #include "third_party/WebKit/public/platform/WebTransformOperations.h"
@@ -43,6 +44,12 @@ class WebCompositorSupportImpl : public blink::WebCompositorSupport {
       int animation_id);
   virtual blink::WebFilterAnimationCurve* createFilterAnimationCurve();
   virtual blink::WebFloatAnimationCurve* createFloatAnimationCurve();
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+  virtual blink::WebScrollOffsetAnimationCurve*
+      createScrollOffsetAnimationCurve(
+          blink::WebFloatPoint target_value,
+          blink::WebAnimationCurve::TimingFunctionType timing_function);
+#endif
   virtual blink::WebTransformAnimationCurve* createTransformAnimationCurve();
   virtual blink::WebTransformOperations* createTransformOperations();
   virtual blink::WebFilterOperations* createFilterOperations();

webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h"
+
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+
+#include "cc/animation/scroll_offset_animation_curve.h"
+#include "cc/animation/timing_function.h"
+#include "webkit/renderer/compositor_bindings/web_animation_curve_common.h"
+
+using blink::WebFloatPoint;
+
+namespace webkit {
+
+WebScrollOffsetAnimationCurveImpl::WebScrollOffsetAnimationCurveImpl(
+    WebFloatPoint target_value,
+    TimingFunctionType timing_function)
+    : curve_(cc::ScrollOffsetAnimationCurve::Create(
+          gfx::Vector2dF(target_value.x, target_value.y),
+          CreateTimingFunction(timing_function))) {}
+
+WebScrollOffsetAnimationCurveImpl::~WebScrollOffsetAnimationCurveImpl() {}
+
+blink::WebAnimationCurve::AnimationCurveType
+WebScrollOffsetAnimationCurveImpl::type() const {
+  return WebAnimationCurve::AnimationCurveTypeScrollOffset;
+}
+
+void WebScrollOffsetAnimationCurveImpl::setInitialValue(
+    WebFloatPoint initial_value) {
+  curve_->SetInitialValue(gfx::Vector2dF(initial_value.x, initial_value.y));
+}
+
+WebFloatPoint WebScrollOffsetAnimationCurveImpl::getValue(double time) const {
+  gfx::Vector2dF value = curve_->GetValue(time);
+  return WebFloatPoint(value.x(), value.y());
+}
+
+double WebScrollOffsetAnimationCurveImpl::duration() const {
+  return curve_->Duration();
+}
+
+scoped_ptr<cc::AnimationCurve>
+WebScrollOffsetAnimationCurveImpl::CloneToAnimationCurve() const {
+  return curve_->Clone();
+}
+
+}  // namespace webkit
+
+#endif  // WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED

webkit/renderer/compositor_bindings/web_scroll_offset_animation_curve_impl.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_
+#define WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_
+
+#include "third_party/WebKit/public/platform/WebAnimationCurve.h"
+
+#if WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+
+#include "base/memory/scoped_ptr.h"
+#include "third_party/WebKit/public/platform/WebScrollOffsetAnimationCurve.h"
+#include "webkit/renderer/compositor_bindings/webkit_compositor_bindings_export.h"
+
+namespace cc {
+class AnimationCurve;
+class ScrollOffsetAnimationCurve;
+}
+
+namespace webkit {
+
+class WebScrollOffsetAnimationCurveImpl
+    : public blink::WebScrollOffsetAnimationCurve {
+ public:
+  WEBKIT_COMPOSITOR_BINDINGS_EXPORT WebScrollOffsetAnimationCurveImpl(
+      blink::WebFloatPoint target_value,
+      TimingFunctionType timing_function);
+  virtual ~WebScrollOffsetAnimationCurveImpl();
+
+  // blink::WebAnimationCurve implementation.
+  virtual AnimationCurveType type() const;
+
+  // blink::WebScrollOffsetAnimationCurve implementation.
+  virtual void setInitialValue(blink::WebFloatPoint initial_value);
+  virtual blink::WebFloatPoint getValue(double time) const;
+  virtual double duration() const;
+
+  scoped_ptr<cc::AnimationCurve> CloneToAnimationCurve() const;
+
+ private:
+  scoped_ptr<cc::ScrollOffsetAnimationCurve> curve_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebScrollOffsetAnimationCurveImpl);
+};
+
+}  // namespace webkit
+
+#endif  // WEB_SCROLL_OFFSET_ANIMATION_CURVE_IS_DEFINED
+
+#endif  // WEBKIT_RENDERER_COMPOSITOR_BINDINGS_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_