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/* -*- 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/HTMLHeadingElement.h"
#include "mozilla/MappedDeclarationsBuilder.h"
#include "mozilla/dom/HTMLHeadingElementBinding.h"
#include "nsGkAtoms.h"
NS_IMPL_NS_NEW_HTML_ELEMENT(Heading)
namespace mozilla::dom {
HTMLHeadingElement::~HTMLHeadingElement() = default;
NS_IMPL_ELEMENT_CLONE(HTMLHeadingElement)
JSObject* HTMLHeadingElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return HTMLHeadingElement_Binding::Wrap(aCx, this, aGivenProto);
}
bool HTMLHeadingElement::ParseAttribute(int32_t aNamespaceID,
nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) {
if (aAttribute == nsGkAtoms::align && aNamespaceID == kNameSpaceID_None) {
return ParseDivAlignValue(aValue, aResult);
}
return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
aMaybeScriptedPrincipal, aResult);
}
void HTMLHeadingElement::UpdateLevel(bool aNotify) {
AutoStateChangeNotifier notifier(*this, aNotify);
RemoveStatesSilently(ElementState::HEADING_LEVEL_BITS);
uint64_t level = ComputedLevel();
// ElementState has 4 bits for the heading level, but they are not the LMB,
// so we need to shift the given level up to those bits.
MOZ_ASSERT(level > 0 && level < 16, "ComputedLevel() must fit into 4 bits!");
uint64_t bits = (level << HEADING_LEVEL_OFFSET);
MOZ_ASSERT((bits & ElementState::HEADING_LEVEL_BITS.bits) == bits);
AddStatesSilently(ElementState(bits));
}
void HTMLHeadingElement::MapAttributesIntoRule(
MappedDeclarationsBuilder& aBuilder) {
nsGenericHTMLElement::MapDivAlignAttributeInto(aBuilder);
nsGenericHTMLElement::MapCommonAttributesInto(aBuilder);
}
NS_IMETHODIMP_(bool)
HTMLHeadingElement::IsAttributeMapped(const nsAtom* aAttribute) const {
static const MappedAttributeEntry* const map[] = {sDivAlignAttributeMap,
sCommonAttributeMap};
return FindAttributeDependence(aAttribute, map);
}
nsMapRuleToAttributesFunc HTMLHeadingElement::GetAttributeMappingFunction()
const {
return &MapAttributesIntoRule;
}
} // namespace mozilla::dom
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