author Benoit Jacob <>
Tue, 08 Jul 2014 17:23:15 -0400
changeset 214905 959a72081da6c738853e382b889c4b2e0e22fe06
parent 211644 ac426472ceec1b9aedfa5f4f97abcc3673c707b9
permissions -rw-r--r--
Bug 1035394 - Fix dangerous public destructors in content/mathml - r=karlt

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 */

#ifndef nsMathMLElement_h
#define nsMathMLElement_h

#include "mozilla/Attributes.h"
#include "mozilla/dom/ElementInlines.h"
#include "nsMappedAttributeElement.h"
#include "nsIDOMElement.h"
#include "Link.h"
#include "mozilla/dom/DOMRect.h"

class nsCSSValue;

typedef nsMappedAttributeElement nsMathMLElementBase;

namespace mozilla {
class EventChainPostVisitor;
class EventChainPreVisitor;
} // namespace mozilla

 * The base class for MathML elements.
class nsMathMLElement MOZ_FINAL : public nsMathMLElementBase,
                                  public nsIDOMElement,
                                  public mozilla::dom::Link
  nsMathMLElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
  nsMathMLElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);

  // Implementation of nsISupports is inherited from nsMathMLElementBase

  // Forward implementations of parent interfaces of nsMathMLElement to 
  // our base class

  nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
                      nsIContent* aBindingParent,
                      bool aCompileEventHandlers) MOZ_OVERRIDE;
  virtual void UnbindFromTree(bool aDeep = true,
                              bool aNullParent = true) MOZ_OVERRIDE;

  virtual bool ParseAttribute(int32_t aNamespaceID,
                                nsIAtom* aAttribute,
                                const nsAString& aValue,
                                nsAttrValue& aResult) MOZ_OVERRIDE;

  NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const MOZ_OVERRIDE;
  virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const MOZ_OVERRIDE;

  enum {
    PARSE_ALLOW_UNITLESS = 0x01, // unitless 0 will be turned into 0px
  static bool ParseNamedSpaceValue(const nsString& aString,
                                   nsCSSValue&     aCSSValue,
                                   uint32_t        aFlags);

  static bool ParseNumericValue(const nsString& aString,
                                nsCSSValue&     aCSSValue,
                                uint32_t        aFlags,
                                nsIDocument*    aDocument);

  static void MapMathMLAttributesInto(const nsMappedAttributes* aAttributes, 
                                      nsRuleData* aRuleData);
  virtual nsresult PreHandleEvent(
                     mozilla::EventChainPreVisitor& aVisitor) MOZ_OVERRIDE;
  virtual nsresult PostHandleEvent(
                     mozilla::EventChainPostVisitor& aVisitor) MOZ_OVERRIDE;
  nsresult Clone(mozilla::dom::NodeInfo*, nsINode**) const MOZ_OVERRIDE;
  virtual mozilla::EventStates IntrinsicState() const MOZ_OVERRIDE;
  virtual bool IsNodeOfType(uint32_t aFlags) const MOZ_OVERRIDE;

  // Set during reflow as necessary. Does a style change notification,
  // aNotify must be true.
  void SetIncrementScriptLevel(bool aIncrementScriptLevel, bool aNotify);
  bool GetIncrementScriptLevel() const {
    return mIncrementScriptLevel;

  virtual bool IsFocusableInternal(int32_t* aTabIndex, bool aWithMouse) MOZ_OVERRIDE;
  virtual bool IsLink(nsIURI** aURI) const MOZ_OVERRIDE;
  virtual void GetLinkTarget(nsAString& aTarget) MOZ_OVERRIDE;
  virtual already_AddRefed<nsIURI> GetHrefURI() const MOZ_OVERRIDE;
  nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
                   const nsAString& aValue, bool aNotify)
    return SetAttr(aNameSpaceID, aName, nullptr, aValue, aNotify);
  virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
                           nsIAtom* aPrefix, const nsAString& aValue,
                           bool aNotify) MOZ_OVERRIDE;
  virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
                             bool aNotify) MOZ_OVERRIDE;

  virtual nsIDOMNode* AsDOMNode() MOZ_OVERRIDE { return this; }

  virtual ~nsMathMLElement() {}

  virtual JSObject* WrapNode(JSContext *aCx) MOZ_OVERRIDE;

  bool mIncrementScriptLevel;

#endif // nsMathMLElement_h