зеркало из https://github.com/mozilla/gecko-dev.git
88 строки
3.1 KiB
C++
88 строки
3.1 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_CSSPseudoElement_h
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#define mozilla_dom_CSSPseudoElement_h
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#include "js/TypeDecls.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/dom/BindingDeclarations.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/RefPtr.h"
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#include "nsCSSPseudoElements.h"
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#include "nsWrapperCache.h"
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namespace mozilla {
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namespace dom {
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class Animation;
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class Element;
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class UnrestrictedDoubleOrKeyframeAnimationOptions;
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class CSSPseudoElement final : public nsWrapperCache {
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public:
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NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CSSPseudoElement)
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(CSSPseudoElement)
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protected:
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virtual ~CSSPseudoElement();
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public:
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ParentObject GetParentObject() const;
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virtual JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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CSSPseudoElementType GetType() const { return mPseudoType; }
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void GetType(nsString& aRetVal) const {
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MOZ_ASSERT(nsCSSPseudoElements::GetPseudoAtom(mPseudoType),
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"All pseudo-types allowed by this class should have a"
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" corresponding atom");
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// Our atoms use one colon and we would like to return two colons syntax
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// for the returned pseudo type string, so serialize this to the
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// non-deprecated two colon syntax.
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aRetVal.Assign(char16_t(':'));
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aRetVal.Append(
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nsDependentAtomString(nsCSSPseudoElements::GetPseudoAtom(mPseudoType)));
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}
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already_AddRefed<Element> ParentElement() const {
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RefPtr<Element> retVal(mParentElement);
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return retVal.forget();
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}
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void GetAnimations(const AnimationFilter& filter,
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nsTArray<RefPtr<Animation>>& aRetVal);
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already_AddRefed<Animation> Animate(
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JSContext* aContext, JS::Handle<JSObject*> aKeyframes,
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const UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions,
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ErrorResult& aError);
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// Given an element:pseudoType pair, returns the CSSPseudoElement stored as a
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// property on |aElement|. If there is no CSSPseudoElement for the specified
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// pseudo-type on element, a new CSSPseudoElement will be created and stored
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// on the element.
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static already_AddRefed<CSSPseudoElement> GetCSSPseudoElement(
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Element* aElement, CSSPseudoElementType aType);
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private:
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// Only ::before and ::after are supported.
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CSSPseudoElement(Element* aElement, CSSPseudoElementType aType);
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static nsAtom* GetCSSPseudoElementPropertyAtom(CSSPseudoElementType aType);
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// mParentElement needs to be an owning reference since if script is holding
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// on to the pseudo-element, it needs to continue to be able to refer to
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// the parent element.
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RefPtr<Element> mParentElement;
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CSSPseudoElementType mPseudoType;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_CSSPseudoElement_h
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