зеркало из https://github.com/mozilla/gecko-dev.git
113 строки
4.2 KiB
C++
113 строки
4.2 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 nsMathMLElement_h
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#define nsMathMLElement_h
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/Element.h"
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#include "nsMappedAttributeElement.h"
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#include "Link.h"
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#include "mozilla/dom/DOMRect.h"
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class nsCSSValue;
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typedef nsMappedAttributeElement nsMathMLElementBase;
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namespace mozilla {
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class EventChainPostVisitor;
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class EventChainPreVisitor;
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} // namespace mozilla
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/*
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* The base class for MathML elements.
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*/
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class nsMathMLElement final : public nsMathMLElementBase,
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public mozilla::dom::Link
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{
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public:
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explicit nsMathMLElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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explicit nsMathMLElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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// Implementation of nsISupports is inherited from nsMathMLElementBase
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NS_DECL_ISUPPORTS_INHERITED
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nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent,
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bool aCompileEventHandlers) override;
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virtual void UnbindFromTree(bool aDeep = true,
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bool aNullParent = true) override;
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virtual bool ParseAttribute(int32_t aNamespaceID,
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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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virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
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enum {
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PARSE_ALLOW_UNITLESS = 0x01, // unitless 0 will be turned into 0px
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PARSE_ALLOW_NEGATIVE = 0x02,
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PARSE_SUPPRESS_WARNINGS = 0x04,
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CONVERT_UNITLESS_TO_PERCENT = 0x08
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};
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static bool ParseNamedSpaceValue(const nsString& aString,
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nsCSSValue& aCSSValue,
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uint32_t aFlags);
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static bool ParseNumericValue(const nsString& aString,
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nsCSSValue& aCSSValue,
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uint32_t aFlags,
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nsIDocument* aDocument);
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static void MapMathMLAttributesInto(const nsMappedAttributes* aAttributes,
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mozilla::MappedDeclarations&);
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void GetEventTargetParent(mozilla::EventChainPreVisitor& aVisitor) override;
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virtual nsresult PostHandleEvent(
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mozilla::EventChainPostVisitor& aVisitor) override;
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nsresult Clone(mozilla::dom::NodeInfo* aNodeInfo, nsINode** aResult,
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bool aPreallocateChildren) const override;
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virtual mozilla::EventStates IntrinsicState() const override;
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virtual bool IsNodeOfType(uint32_t aFlags) 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 mIncrementScriptLevel;
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}
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virtual bool IsFocusableInternal(int32_t* aTabIndex, bool aWithMouse) override;
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virtual bool IsLink(nsIURI** aURI) const override;
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virtual void GetLinkTarget(nsAString& aTarget) override;
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virtual already_AddRefed<nsIURI> GetHrefURI() const override;
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virtual void NodeInfoChanged(nsIDocument* aOldDoc) override
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{
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ClearHasPendingLinkUpdate();
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nsMathMLElementBase::NodeInfoChanged(aOldDoc);
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}
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protected:
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virtual ~nsMathMLElement() {}
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virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) 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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private:
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bool mIncrementScriptLevel;
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};
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#endif // nsMathMLElement_h
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