CSS Motion Path: animate offset-anchor and offset-position

third_party/WebKit/Source/core/css/resolver/AnimatedStyleBuilder.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 623 matching lines @@
         style->setRotate(toRotateTransformOperation(animatableValueToTransformOperation(value, TransformOperation::Rotate3D)));
         return;
     }
     case CSSPropertyScale: {
         style->setScale(toScaleTransformOperation(animatableValueToTransformOperation(value, TransformOperation::Scale3D)));
         return;
     }
     case CSSPropertyTransformOrigin:
         style->setTransformOrigin(animatableValueToTransformOrigin(value, state));
         return;
+    case CSSPropertyOffsetAnchor:
+        style->setOffsetAnchor(animatableValueToLengthPoint(value, state));
+        return;
     case CSSPropertyOffsetDistance:
         style->setOffsetDistance(animatableValueToLength(value, state));
         return;
     case CSSPropertyOffsetRotation:
         style->setOffsetRotation(StyleOffsetRotation(
             toAnimatableDoubleAndBool(value)->toDouble(),
             toAnimatableDoubleAndBool(value)->flag() ? OffsetRotationAuto : OffsetRotationFixed));
         return;
+    case CSSPropertyOffsetPosition:

[suzyh_UTC10 (ex-contributor), 2016/09/22 03:44:53]

Optional: Swap with CSSPropertyOffsetRotation to maintain local alph order. The
switch as a whole doesn't seem to follow this ordering, so not sure if it really
matters here.

[Eric Willigers, 2016/09/22 04:32:15]

Done.

+        style->setOffsetPosition(animatableValueToLengthPoint(value, state));
+        return;
     case CSSPropertyWebkitPerspectiveOriginX:
         style->setPerspectiveOriginX(animatableValueToLength(value, state));
         return;
     case CSSPropertyWebkitPerspectiveOriginY:
         style->setPerspectiveOriginY(animatableValueToLength(value, state));
         return;
     case CSSPropertyWebkitTransformOriginX:
         style->setTransformOriginX(animatableValueToLength(value, state));
         return;
     case CSSPropertyWebkitTransformOriginY:
@@ skipping 44 matching lines @@
     case CSSPropertyRy:
         style->setRy(animatableValueToLength(value, state, ValueRangeNonNegative));
         return;
 
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace blink