gecko-dev/dom/animation/CSSPseudoElement.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_CSSPseudoElement_h
#define mozilla_dom_CSSPseudoElement_h
#include "js/TypeDecls.h"
#include "mozilla/Attributes.h"
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/dom/Element.h"
#include "mozilla/RefPtr.h"
#include "nsCSSPseudoElements.h"
#include "nsWrapperCache.h"
namespace mozilla {
namespace dom {
class Animation;
class Element;
class UnrestrictedDoubleOrKeyframeAnimationOptions;
class CSSPseudoElement final : public nsWrapperCache
{
public:
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(CSSPseudoElement)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(CSSPseudoElement)
protected:
virtual ~CSSPseudoElement();
public:
ParentObject GetParentObject() const;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
CSSPseudoElementType GetType() const { return mPseudoType; }
void GetType(nsString& aRetVal) const
{
MOZ_ASSERT(nsCSSPseudoElements::GetPseudoAtom(mPseudoType),
"All pseudo-types allowed by this class should have a"
" corresponding atom");
// Our atoms use one colon and we would like to return two colons syntax
// for the returned pseudo type string, so serialize this to the
// non-deprecated two colon syntax.
aRetVal.Assign(char16_t(':'));
aRetVal.Append(
nsDependentAtomString(nsCSSPseudoElements::GetPseudoAtom(mPseudoType)));
}
already_AddRefed<Element> ParentElement() const
{
RefPtr<Element> retVal(mParentElement);
return retVal.forget();
}
void GetAnimations(const AnimationFilter& filter,
nsTArray<RefPtr<Animation>>& aRetVal);
already_AddRefed<Animation>
Animate(JSContext* aContext,
JS::Handle<JSObject*> aKeyframes,
const UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions,
ErrorResult& aError);
// Given an element:pseudoType pair, returns the CSSPseudoElement stored as a
// property on |aElement|. If there is no CSSPseudoElement for the specified
// pseudo-type on element, a new CSSPseudoElement will be created and stored
// on the element.
static already_AddRefed<CSSPseudoElement>
GetCSSPseudoElement(Element* aElement, CSSPseudoElementType aType);
private:
// Only ::before and ::after are supported.
CSSPseudoElement(Element* aElement, CSSPseudoElementType aType);
static nsIAtom* GetCSSPseudoElementPropertyAtom(CSSPseudoElementType aType);
// mParentElement needs to be an owning reference since if script is holding
// on to the pseudo-element, it needs to continue to be able to refer to
// the parent element.
RefPtr<Element> mParentElement;
CSSPseudoElementType mPseudoType;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_CSSPseudoElement_h