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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/animation/CSSPseudoElement.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'dom/animation/CSSPseudoElement.cpp')
-rw-r--r--dom/animation/CSSPseudoElement.cpp123
1 files changed, 123 insertions, 0 deletions
diff --git a/dom/animation/CSSPseudoElement.cpp b/dom/animation/CSSPseudoElement.cpp
new file mode 100644
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+++ b/dom/animation/CSSPseudoElement.cpp
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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/. */
+
+#include "mozilla/dom/CSSPseudoElement.h"
+#include "mozilla/dom/CSSPseudoElementBinding.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/AnimationComparator.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(CSSPseudoElement, mParentElement)
+
+NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(CSSPseudoElement, AddRef)
+NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(CSSPseudoElement, Release)
+
+CSSPseudoElement::CSSPseudoElement(Element* aElement,
+ CSSPseudoElementType aType)
+ : mParentElement(aElement)
+ , mPseudoType(aType)
+{
+ MOZ_ASSERT(aElement);
+ MOZ_ASSERT(aType == CSSPseudoElementType::after ||
+ aType == CSSPseudoElementType::before,
+ "Unexpected Pseudo Type");
+}
+
+CSSPseudoElement::~CSSPseudoElement()
+{
+ // Element might have been unlinked already, so we have to do null check.
+ if (mParentElement) {
+ mParentElement->DeleteProperty(
+ GetCSSPseudoElementPropertyAtom(mPseudoType));
+ }
+}
+
+ParentObject
+CSSPseudoElement::GetParentObject() const
+{
+ return mParentElement->GetParentObject();
+}
+
+JSObject*
+CSSPseudoElement::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ return CSSPseudoElementBinding::Wrap(aCx, this, aGivenProto);
+}
+
+void
+CSSPseudoElement::GetAnimations(const AnimationFilter& filter,
+ nsTArray<RefPtr<Animation>>& aRetVal)
+{
+ nsIDocument* doc = mParentElement->GetComposedDoc();
+ if (doc) {
+ doc->FlushPendingNotifications(Flush_Style);
+ }
+
+ Element::GetAnimationsUnsorted(mParentElement, 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(Element* aElement,
+ CSSPseudoElementType aType)
+{
+ if (!aElement) {
+ return nullptr;
+ }
+
+ nsIAtom* 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 */ nsIAtom*
+CSSPseudoElement::GetCSSPseudoElementPropertyAtom(CSSPseudoElementType aType)
+{
+ switch (aType) {
+ case CSSPseudoElementType::before:
+ return nsGkAtoms::cssPseudoElementBeforeProperty;
+
+ case CSSPseudoElementType::after:
+ return nsGkAtoms::cssPseudoElementAfterProperty;
+
+ default:
+ NS_NOTREACHED("Should not try to get CSSPseudoElement "
+ "other than ::before or ::after");
+ return nullptr;
+ }
+}
+
+} // namespace dom
+} // namespace mozilla