gecko-dev/dom/animation/AnimationTarget.h
Emilio Cobos Álvarez dad3a20b22 Bug 1525955 - Include anon boxes in CSSPseudoElementType, to remove ComputedStyle::mPseudoTag. r=heycam
This is more consistent with what the Rust bits of the style system do, and
removes a pointer from ComputedStyle which is always nice.

This also aligns the Rust bits with the C++ bits re. not treating xul pseudos as
anonymous boxes. See the comment in nsTreeStyleCache.cpp regarding those.

Can't wait for XUL trees to die.

Depends on D19001

Differential Revision: https://phabricator.services.mozilla.com/D19002

--HG--
extra : moz-landing-system : lando
2019-02-19 13:44:33 +00:00

74 lines
2.4 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_AnimationTarget_h
#define mozilla_AnimationTarget_h
#include "mozilla/Attributes.h" // For MOZ_NON_OWNING_REF
#include "mozilla/Maybe.h"
#include "mozilla/RefPtr.h"
#include "nsCSSPseudoElements.h"
namespace mozilla {
namespace dom {
class Element;
} // namespace dom
struct OwningAnimationTarget {
OwningAnimationTarget(dom::Element* aElement, PseudoStyleType aType)
: mElement(aElement), mPseudoType(aType) {}
explicit OwningAnimationTarget(dom::Element* aElement) : mElement(aElement) {}
bool operator==(const OwningAnimationTarget& aOther) const {
return mElement == aOther.mElement && mPseudoType == aOther.mPseudoType;
}
// mElement represents the parent element of a pseudo-element, not the
// generated content element.
RefPtr<dom::Element> mElement;
PseudoStyleType mPseudoType = PseudoStyleType::NotPseudo;
};
struct NonOwningAnimationTarget {
NonOwningAnimationTarget() = default;
NonOwningAnimationTarget(dom::Element* aElement, PseudoStyleType aType)
: mElement(aElement), mPseudoType(aType) {}
explicit NonOwningAnimationTarget(const OwningAnimationTarget& aOther)
: mElement(aOther.mElement), mPseudoType(aOther.mPseudoType) {}
bool operator==(const NonOwningAnimationTarget& aOther) const {
return mElement == aOther.mElement && mPseudoType == aOther.mPseudoType;
}
// mElement represents the parent element of a pseudo-element, not the
// generated content element.
dom::Element* MOZ_NON_OWNING_REF mElement = nullptr;
PseudoStyleType mPseudoType = PseudoStyleType::NotPseudo;
};
// Helper functions for cycle-collecting Maybe<OwningAnimationTarget>
inline void ImplCycleCollectionTraverse(
nsCycleCollectionTraversalCallback& aCallback,
Maybe<OwningAnimationTarget>& aTarget, const char* aName,
uint32_t aFlags = 0) {
if (aTarget) {
ImplCycleCollectionTraverse(aCallback, aTarget->mElement, aName, aFlags);
}
}
inline void ImplCycleCollectionUnlink(Maybe<OwningAnimationTarget>& aTarget) {
if (aTarget) {
ImplCycleCollectionUnlink(aTarget->mElement);
}
}
} // namespace mozilla
#endif // mozilla_AnimationTarget_h