forked from mirrors/gecko-dev
3b42787268
This doesn't change behavior on its own, but it's likely we want to make the tab focusability more complicated in bug 1895184, and this will make changes to this area less painful. Differential Revision: https://phabricator.services.mozilla.com/D209525
111 lines
3.9 KiB
C++
111 lines
3.9 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_MathMLElement_h_
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#define mozilla_dom_MathMLElement_h_
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#include "mozilla/Attributes.h"
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#include "nsStyledElement.h"
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#include "Link.h"
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class nsCSSValue;
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namespace mozilla {
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class EventChainPostVisitor;
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class EventChainPreVisitor;
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namespace dom {
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using MathMLElementBase = nsStyledElement;
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/*
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* The base class for MathML elements.
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*/
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class MathMLElement final : public MathMLElementBase, public Link {
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public:
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explicit MathMLElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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explicit MathMLElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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// Implementation of nsISupports is inherited from MathMLElementBase
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NS_DECL_ISUPPORTS_INHERITED
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NS_IMPL_FROMNODE(MathMLElement, kNameSpaceID_MathML)
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nsresult BindToTree(BindContext&, nsINode& aParent) override;
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void UnbindFromTree(UnbindContext&) override;
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bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult) override;
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NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
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nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
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enum {
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PARSE_ALLOW_NEGATIVE = 0x02,
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PARSE_SUPPRESS_WARNINGS = 0x04,
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};
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static bool ParseNamedSpaceValue(const nsString& aString,
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nsCSSValue& aCSSValue, uint32_t aFlags,
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const Document& aDocument);
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static bool ParseNumericValue(const nsString& aString, nsCSSValue& aCSSValue,
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uint32_t aFlags, Document* aDocument);
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static void MapGlobalMathMLAttributesInto(
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mozilla::MappedDeclarationsBuilder&);
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static void MapMiAttributesInto(mozilla::MappedDeclarationsBuilder&);
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static void MapMTableAttributesInto(mozilla::MappedDeclarationsBuilder&);
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void GetEventTargetParent(mozilla::EventChainPreVisitor& aVisitor) override;
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MOZ_CAN_RUN_SCRIPT
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nsresult PostHandleEvent(mozilla::EventChainPostVisitor& aVisitor) override;
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nsresult Clone(mozilla::dom::NodeInfo*, nsINode** aResult) const override;
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// Set during reflow as necessary. Does a style change notification,
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// aNotify must be true.
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void SetIncrementScriptLevel(bool aIncrementScriptLevel, bool aNotify);
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bool GetIncrementScriptLevel() const {
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return Element::State().HasState(ElementState::INCREMENT_SCRIPT_LEVEL);
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}
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int32_t TabIndexDefault() final;
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Focusable IsFocusableWithoutStyle(IsFocusableFlags) override;
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already_AddRefed<nsIURI> GetHrefURI() const override;
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void NodeInfoChanged(Document* aOldDoc) override {
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ClearHasPendingLinkUpdate();
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MathMLElementBase::NodeInfoChanged(aOldDoc);
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}
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bool IsEventAttributeNameInternal(nsAtom* aName) final;
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bool Autofocus() const { return GetBoolAttr(nsGkAtoms::autofocus); }
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void SetAutofocus(bool aAutofocus, ErrorResult& aRv) {
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if (aAutofocus) {
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SetAttr(nsGkAtoms::autofocus, u""_ns, aRv);
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} else {
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UnsetAttr(nsGkAtoms::autofocus, aRv);
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}
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}
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protected:
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virtual ~MathMLElement() = default;
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JSObject* WrapNode(JSContext*, JS::Handle<JSObject*> aGivenProto) override;
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void BeforeSetAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValue* aValue, bool aNotify) final;
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void AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
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const nsAttrValue* aValue, const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal, bool aNotify) override;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_MathMLElement_h_
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