gecko-dev/dom/html/HTMLPreElement.h
Emilio Cobos Álvarez 7bddcf9e5a Bug 1839223 - Remove nsMappedAttributes. r=smaug
Instead, lazily schedule evaluation of them before styling, much like we
were doing for SVG.

A subtle tweak is that we only remain scheduled while in the document.
This allows us to use the "in document" bit plus the "mapped attributes
dirty" bit to know our scheduled status. It also prevents doing silly
work for disconnected elements, and having to do hashmap lookups on
adoption and node destruction.

Differential Revision: https://phabricator.services.mozilla.com/D181549
2023-06-22 17:22:03 +00:00

51 lines
1.7 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_dom_HTMLPreElement_h
#define mozilla_dom_HTMLPreElement_h
#include "mozilla/Attributes.h"
#include "nsGenericHTMLElement.h"
namespace mozilla::dom {
class HTMLPreElement final : public nsGenericHTMLElement {
public:
explicit HTMLPreElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: nsGenericHTMLElement(std::move(aNodeInfo)) {}
// nsISupports
NS_INLINE_DECL_REFCOUNTING_INHERITED(HTMLPreElement, nsGenericHTMLElement)
bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) override;
NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
// WebIDL API
int32_t Width() const { return GetIntAttr(nsGkAtoms::width, 0); }
void SetWidth(int32_t aWidth, mozilla::ErrorResult& rv) {
rv = SetIntAttr(nsGkAtoms::width, aWidth);
}
protected:
virtual ~HTMLPreElement();
JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*>) override;
private:
static void MapAttributesIntoRule(MappedDeclarationsBuilder&);
};
} // namespace mozilla::dom
#endif // mozilla_dom_HTMLPreElement_h