зеркало из https://github.com/mozilla/gecko-dev.git
123 строки
4.3 KiB
C++
123 строки
4.3 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/. */
|
|
|
|
#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 {
|
|
namespace dom {
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(CSSPseudoElement, mOriginatingElement)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(CSSPseudoElement, AddRef)
|
|
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(CSSPseudoElement, Release)
|
|
|
|
CSSPseudoElement::CSSPseudoElement(dom::Element* aElement,
|
|
PseudoStyleType aType)
|
|
: mOriginatingElement(aElement), mPseudoType(aType) {
|
|
MOZ_ASSERT(aElement);
|
|
MOZ_ASSERT(aType == PseudoStyleType::after ||
|
|
aType == PseudoStyleType::before ||
|
|
aType == PseudoStyleType::marker,
|
|
"Unexpected Pseudo Type");
|
|
}
|
|
|
|
CSSPseudoElement::~CSSPseudoElement() {
|
|
// Element might have been unlinked already, so we have to do null check.
|
|
if (mOriginatingElement) {
|
|
mOriginatingElement->DeleteProperty(
|
|
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);
|
|
}
|
|
|
|
void CSSPseudoElement::GetAnimations(const AnimationFilter& filter,
|
|
nsTArray<RefPtr<Animation>>& aRetVal) {
|
|
Document* doc = mOriginatingElement->GetComposedDoc();
|
|
if (doc) {
|
|
// We don't need to explicitly flush throttled animations here, since
|
|
// updating the animation style of (pseudo-)elements will never affect the
|
|
// set of running animations and it's only the set of running animations
|
|
// that is important here.
|
|
doc->FlushPendingNotifications(
|
|
ChangesToFlush(FlushType::Style, false /* flush animations */));
|
|
}
|
|
|
|
Element::GetAnimationsUnsorted(mOriginatingElement, mPseudoType, aRetVal);
|
|
aRetVal.Sort(AnimationPtrComparator<RefPtr<Animation>>());
|
|
}
|
|
|
|
already_AddRefed<Animation> CSSPseudoElement::Animate(
|
|
JSContext* aContext, JS::Handle<JSObject*> aKeyframes,
|
|
const UnrestrictedDoubleOrKeyframeAnimationOptions& aOptions,
|
|
ErrorResult& aError) {
|
|
Nullable<ElementOrCSSPseudoElement> target;
|
|
target.SetValue().SetAsCSSPseudoElement() = this;
|
|
return Element::Animate(target, aContext, aKeyframes, aOptions, aError);
|
|
}
|
|
|
|
/* 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 dom
|
|
} // namespace mozilla
|