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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /dom/animation/CSSPseudoElement.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/animation/CSSPseudoElement.cpp')
-rw-r--r-- | dom/animation/CSSPseudoElement.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/dom/animation/CSSPseudoElement.cpp b/dom/animation/CSSPseudoElement.cpp new file mode 100644 index 0000000000..9dfdd9d4f6 --- /dev/null +++ b/dom/animation/CSSPseudoElement.cpp @@ -0,0 +1,90 @@ +/* -*- 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/. */ + +#include "mozilla/dom/CSSPseudoElement.h" +#include "mozilla/dom/CSSPseudoElementBinding.h" +#include "mozilla/dom/Element.h" +#include "mozilla/dom/KeyframeEffectBinding.h" +#include "mozilla/AnimationComparator.h" + +namespace mozilla::dom { + +NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(CSSPseudoElement, mOriginatingElement) + +CSSPseudoElement::CSSPseudoElement(dom::Element* aElement, + PseudoStyleType aType) + : mOriginatingElement(aElement), mPseudoType(aType) { + MOZ_ASSERT(aElement); + MOZ_ASSERT(AnimationUtils::IsSupportedPseudoForAnimations(aType), + "Unexpected Pseudo Type"); +} + +CSSPseudoElement::~CSSPseudoElement() { + // Element might have been unlinked already, so we have to do null check. + if (mOriginatingElement) { + mOriginatingElement->RemoveProperty( + GetCSSPseudoElementPropertyAtom(mPseudoType)); + } +} + +ParentObject CSSPseudoElement::GetParentObject() const { + return mOriginatingElement->GetParentObject(); +} + +JSObject* CSSPseudoElement::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return CSSPseudoElement_Binding::Wrap(aCx, this, aGivenProto); +} + +/* static */ +already_AddRefed<CSSPseudoElement> CSSPseudoElement::GetCSSPseudoElement( + dom::Element* aElement, PseudoStyleType aType) { + if (!aElement) { + return nullptr; + } + + nsAtom* propName = CSSPseudoElement::GetCSSPseudoElementPropertyAtom(aType); + RefPtr<CSSPseudoElement> pseudo = + static_cast<CSSPseudoElement*>(aElement->GetProperty(propName)); + if (pseudo) { + return pseudo.forget(); + } + + // CSSPseudoElement is a purely external interface created on-demand, and + // when all references from script to the pseudo are dropped, we can drop the + // CSSPseudoElement object, so use a non-owning reference from Element to + // CSSPseudoElement. + pseudo = new CSSPseudoElement(aElement, aType); + nsresult rv = aElement->SetProperty(propName, pseudo, nullptr, true); + if (NS_FAILED(rv)) { + NS_WARNING("SetProperty failed"); + return nullptr; + } + return pseudo.forget(); +} + +/* static */ +nsAtom* CSSPseudoElement::GetCSSPseudoElementPropertyAtom( + PseudoStyleType aType) { + switch (aType) { + case PseudoStyleType::before: + return nsGkAtoms::cssPseudoElementBeforeProperty; + + case PseudoStyleType::after: + return nsGkAtoms::cssPseudoElementAfterProperty; + + case PseudoStyleType::marker: + return nsGkAtoms::cssPseudoElementMarkerProperty; + + default: + MOZ_ASSERT_UNREACHABLE( + "Should not try to get CSSPseudoElement " + "other than ::before, ::after or ::marker"); + return nullptr; + } +} + +} // namespace mozilla::dom |