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3efe2b6ed0
This penalizes a bit non-shadow-DOM content, in exchange of making Shadow DOM slightly faster as well. The biggest advantage of this is that all ContentRemoved notifications would see the flattened tree before the changes, which is something a11y needs to be correct. XBL would still not be handled right by a11y, but that's not new and content cannot do random stuff with XBL so it's not too bad. Differential Revision: https://phabricator.services.mozilla.com/D32639 --HG-- extra : moz-landing-system : lando
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_HTMLSlotElement_h
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#define mozilla_dom_HTMLSlotElement_h
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#include "nsGenericHTMLElement.h"
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#include "nsTArray.h"
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namespace mozilla {
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namespace dom {
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struct AssignedNodesOptions;
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class HTMLSlotElement final : public nsGenericHTMLElement {
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public:
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explicit HTMLSlotElement(
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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NS_IMPL_FROMNODE_HTML_WITH_TAG(HTMLSlotElement, slot)
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLSlotElement,
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nsGenericHTMLElement)
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virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
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// nsIContent
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virtual nsresult BindToTree(BindContext&, nsINode& aParent) override;
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virtual void UnbindFromTree(bool aNullParent) override;
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virtual nsresult BeforeSetAttr(int32_t aNameSpaceID, nsAtom* aName,
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const nsAttrValueOrString* aValue,
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bool aNotify) override;
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virtual nsresult AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal,
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bool aNotify) override;
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// WebIDL
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void SetName(const nsAString& aName, ErrorResult& aRv) {
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SetHTMLAttr(nsGkAtoms::name, aName, aRv);
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}
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void GetName(nsAString& aName) { GetHTMLAttr(nsGkAtoms::name, aName); }
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void AssignedNodes(const AssignedNodesOptions& aOptions,
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nsTArray<RefPtr<nsINode>>& aNodes);
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void AssignedElements(const AssignedNodesOptions& aOptions,
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nsTArray<RefPtr<Element>>& aNodes);
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// Helper methods
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const nsTArray<RefPtr<nsINode>>& AssignedNodes() const;
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void InsertAssignedNode(uint32_t aIndex, nsIContent&);
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void AppendAssignedNode(nsIContent&);
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void RemoveAssignedNode(nsIContent&);
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void ClearAssignedNodes();
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void EnqueueSlotChangeEvent();
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void RemovedFromSignalSlotList() {
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MOZ_ASSERT(mInSignalSlotList);
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mInSignalSlotList = false;
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}
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void FireSlotChangeEvent();
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protected:
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virtual ~HTMLSlotElement();
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JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;
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nsTArray<RefPtr<nsINode>> mAssignedNodes;
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// Whether we're in the signal slot list of our unit of related similar-origin
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// browsing contexts.
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//
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// https://dom.spec.whatwg.org/#signal-slot-list
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bool mInSignalSlotList = false;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_HTMLSlotElement_h
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