зеркало из https://github.com/mozilla/gecko-dev.git
58 строки
1.7 KiB
C++
58 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_KeyframeUtils_h
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#define mozilla_KeyframeUtils_h
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#include "nsTArrayForwardDeclare.h" // For nsTArray
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#include "js/RootingAPI.h" // For JS::Handle
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struct JSContext;
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class JSObject;
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namespace mozilla {
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struct AnimationProperty;
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enum class CSSPseudoElementType : uint8_t;
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class ErrorResult;
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namespace dom {
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class Element;
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} // namespace dom
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} // namespace mozilla
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namespace mozilla {
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/**
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* Utility methods for processing keyframes.
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*/
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class KeyframeUtils
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{
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public:
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/**
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* Converts a JS value to a property-indexed keyframe or a sequence of
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* regular keyframes and builds an array of AnimationProperty objects for the
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* keyframe animation that it specifies.
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*
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* @param aTarget The target of the animation, used to resolve style
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* for a property's underlying value if needed.
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* @param aFrames The JS value, provided as an optional IDL |object?| value,
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* that is the keyframe list specification.
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* @param aResult The array into which the resulting AnimationProperty
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* objects will be appended.
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*/
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static void
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BuildAnimationPropertyList(JSContext* aCx, Element* aTarget,
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CSSPseudoElementType aPseudoType,
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JS::Handle<JSObject*> aFrames,
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InfallibleTArray<AnimationProperty>& aResult,
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ErrorResult& aRv);
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};
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} // namespace mozilla
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#endif // mozilla_KeyframeUtils_h
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