+
−/* -*- 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 nsINode_h___
+
−#define nsINode_h___
+
−
+
−#include "mozilla/Likely.h"
+
−#include "nsCOMPtr.h"               // for member, local
+
−#include "nsGkAtoms.h"              // for nsGkAtoms::baseURIProperty
+
−#include "nsIDOMNode.h"
+
−#include "mozilla/dom/NodeInfo.h"            // member (in nsCOMPtr)
+
−#include "nsIVariant.h"             // for use in GetUserData()
+
−#include "nsNodeInfoManager.h"      // for use in NodePrincipal()
+
−#include "nsPropertyTable.h"        // for typedefs
+
−#include "nsTObserverArray.h"       // for member
+
−#include "mozilla/ErrorResult.h"
+
−#include "mozilla/MemoryReporting.h"
+
−#include "mozilla/dom/EventTarget.h" // for base class
+
−#include "js/TypeDecls.h"     // for Handle, Value, JSObject, JSContext
+
−#include "mozilla/dom/DOMString.h"
+
−#include "mozilla/dom/BindingDeclarations.h"
+
−#include <iosfwd>
+
−
+
−// Including 'windows.h' will #define GetClassInfo to something else.
+
−#ifdef XP_WIN
+
−#ifdef GetClassInfo
+
−#undef GetClassInfo
+
−#endif
+
−#endif
+
−
+
−class nsAttrAndChildArray;
+
−class nsChildContentList;
+
−struct nsCSSSelectorList;
+
−class nsDOMAttributeMap;
+
−class nsIAnimationObserver;
+
−class nsIContent;
+
−class nsIDocument;
+
−class nsIDOMElement;
+
−class nsIDOMNodeList;
+
−class nsIEditor;
+
−class nsIFrame;
+
−class nsIMutationObserver;
+
−class nsINode;
+
−class nsINodeList;
+
−class nsIPresShell;
+
−class nsIPrincipal;
+
−class nsIURI;
+
−class nsNodeSupportsWeakRefTearoff;
+
−class nsNodeWeakReference;
+
−class nsDOMMutationObserver;
+
−
+
−namespace mozilla {
+
−class EventListenerManager;
+
−namespace dom {
+
−/**
+
− * @return true if aChar is what the DOM spec defines as 'space character'.
+
− * http://dom.spec.whatwg.org/#space-character
+
− */
+
−inline bool IsSpaceCharacter(char16_t aChar) {
+
−  return aChar == ' ' || aChar == '\t' || aChar == '\n' || aChar == '\r' ||
+
−         aChar == '\f';
+
−}
+
−inline bool IsSpaceCharacter(char aChar) {
+
−  return aChar == ' ' || aChar == '\t' || aChar == '\n' || aChar == '\r' ||
+
−         aChar == '\f';
+
−}
+
−struct BoxQuadOptions;
+
−struct ConvertCoordinateOptions;
+
−class DOMPoint;
+
−class DOMQuad;
+
−class DOMRectReadOnly;
+
−class Element;
+
−class EventHandlerNonNull;
+
−template<typename T> class Optional;
+
−class Text;
+
−class TextOrElementOrDocument;
+
−struct DOMPointInit;
+
−} // namespace dom
+
−} // namespace mozilla
+
−
+
−#define NODE_FLAG_BIT(n_) \
+
−  (nsWrapperCache::FlagsType(1U) << (WRAPPER_CACHE_FLAGS_BITS_USED + (n_)))
+
−
+
−enum {
+
−  // This bit will be set if the node has a listener manager.
+
−  NODE_HAS_LISTENERMANAGER =              NODE_FLAG_BIT(0),
+
−
+
−  // Whether this node has had any properties set on it
+
−  NODE_HAS_PROPERTIES =                   NODE_FLAG_BIT(1),
+
−
+
−  // Whether this node is the root of an anonymous subtree.  Note that this
+
−  // need not be a native anonymous subtree.  Any anonymous subtree, including
+
−  // XBL-generated ones, will do.  This flag is set-once: once a node has it,
+
−  // it must not be removed.
+
−  // NOTE: Should only be used on nsIContent nodes
+
−  NODE_IS_ANONYMOUS_ROOT =                NODE_FLAG_BIT(2),
+
−
+
−  // Whether the node has some ancestor, possibly itself, that is native
+
−  // anonymous.  This includes ancestors crossing XBL scopes, in cases when an
+
−  // XBL binding is attached to an element which has a native anonymous
+
−  // ancestor.  This flag is set-once: once a node has it, it must not be
+
−  // removed.
+
−  // NOTE: Should only be used on nsIContent nodes
+
−  NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE =          NODE_FLAG_BIT(3),
+
−
+
−  // Whether this node is the root of a native anonymous (from the perspective
+
−  // of its parent) subtree.  This flag is set-once: once a node has it, it
+
−  // must not be removed.
+
−  // NOTE: Should only be used on nsIContent nodes
+
−  NODE_IS_NATIVE_ANONYMOUS_ROOT =         NODE_FLAG_BIT(4),
+
−
+
−  // Forces the XBL code to treat this node as if it were
+
−  // in the document and therefore should get bindings attached.
+
−  NODE_FORCE_XBL_BINDINGS =               NODE_FLAG_BIT(5),
+
−
+
−  // Whether a binding manager may have a pointer to this
+
−  NODE_MAY_BE_IN_BINDING_MNGR =           NODE_FLAG_BIT(6),
+
−
+
−  NODE_IS_EDITABLE =                      NODE_FLAG_BIT(7),
+
−
+
−  // For all Element nodes, NODE_MAY_HAVE_CLASS is guaranteed to be set if the
+
−  // node in fact has a class, but may be set even if it doesn't.
+
−  NODE_MAY_HAVE_CLASS =                   NODE_FLAG_BIT(8),
+
−
+
−  // Whether the node participates in a shadow tree.
+
−  NODE_IS_IN_SHADOW_TREE =                NODE_FLAG_BIT(9),
+
−
+
−  // Node has an :empty or :-moz-only-whitespace selector
+
−  NODE_HAS_EMPTY_SELECTOR =               NODE_FLAG_BIT(10),
+
−
+
−  // A child of the node has a selector such that any insertion,
+
−  // removal, or appending of children requires restyling the parent.
+
−  NODE_HAS_SLOW_SELECTOR =                NODE_FLAG_BIT(11),
+
−
+
−  // A child of the node has a :first-child, :-moz-first-node,
+
−  // :only-child, :last-child or :-moz-last-node selector.
+
−  NODE_HAS_EDGE_CHILD_SELECTOR =          NODE_FLAG_BIT(12),
+
−
+
−  // A child of the node has a selector such that any insertion or
+
−  // removal of children requires restyling later siblings of that
+
−  // element.  Additionally (in this manner it is stronger than
+
−  // NODE_HAS_SLOW_SELECTOR), if a child's style changes due to any
+
−  // other content tree changes (e.g., the child changes to or from
+
−  // matching :empty due to a grandchild insertion or removal), the
+
−  // child's later siblings must also be restyled.
+
−  NODE_HAS_SLOW_SELECTOR_LATER_SIBLINGS = NODE_FLAG_BIT(13),
+
−
+
−  NODE_ALL_SELECTOR_FLAGS =               NODE_HAS_EMPTY_SELECTOR |
+
−                                          NODE_HAS_SLOW_SELECTOR |
+
−                                          NODE_HAS_EDGE_CHILD_SELECTOR |
+
−                                          NODE_HAS_SLOW_SELECTOR_LATER_SIBLINGS,
+
−
+
−  // This node needs to go through frame construction to get a frame (or
+
−  // undisplayed entry).
+
−  NODE_NEEDS_FRAME =                      NODE_FLAG_BIT(14),
+
−
+
−  // At least one descendant in the flattened tree has NODE_NEEDS_FRAME set.
+
−  // This should be set on every node on the flattened tree path between the
+
−  // node(s) with NODE_NEEDS_FRAME and the root content.
+
−  NODE_DESCENDANTS_NEED_FRAMES =          NODE_FLAG_BIT(15),
+
−
+
−  // Set if the node has the accesskey attribute set.
+
−  NODE_HAS_ACCESSKEY =                    NODE_FLAG_BIT(16),
+
−
+
−  // Set if the node has right-to-left directionality
+
−  NODE_HAS_DIRECTION_RTL =                NODE_FLAG_BIT(17),
+
−
+
−  // Set if the node has left-to-right directionality
+
−  NODE_HAS_DIRECTION_LTR =                NODE_FLAG_BIT(18),
+
−
+
−  NODE_ALL_DIRECTION_FLAGS =              NODE_HAS_DIRECTION_LTR |
+
−                                          NODE_HAS_DIRECTION_RTL,
+
−
+
−  NODE_CHROME_ONLY_ACCESS =               NODE_FLAG_BIT(19),
+
−
+
−  NODE_IS_ROOT_OF_CHROME_ONLY_ACCESS =    NODE_FLAG_BIT(20),
+
−
+
−  // Remaining bits are node type specific.
+
−  NODE_TYPE_SPECIFIC_BITS_OFFSET =        21
+
−};
+
−
+
−// Make sure we have space for our bits
+
−#define ASSERT_NODE_FLAGS_SPACE(n) \
+
−  static_assert(WRAPPER_CACHE_FLAGS_BITS_USED + (n) <=                          \
+
−                  sizeof(nsWrapperCache::FlagsType) * 8,                        \
+
−                "Not enough space for our bits")
+
−ASSERT_NODE_FLAGS_SPACE(NODE_TYPE_SPECIFIC_BITS_OFFSET);
+
−
+
−/**
+
− * Class used to detect unexpected mutations. To use the class create an
+
− * nsMutationGuard on the stack before unexpected mutations could occur.
+
− * You can then at any time call Mutated to check if any unexpected mutations
+
− * have occurred.
+
− */
+
−class nsMutationGuard {
+
−public:
+
−  nsMutationGuard()
+
−  {
+
−    mStartingGeneration = sGeneration;
+
−  }
+
−
+
−  /**
+
−   * Returns true if any unexpected mutations have occurred. You can pass in
+
−   * an 8-bit ignore count to ignore a number of expected mutations.
+
−   *
+
−   * We don't need to care about overflow because subtraction of uint64_t's is
+
−   * finding the difference between two elements of the group Z < 2^64.  Once
+
−   * we know the difference between two elements we only need to check that is
+
−   * less than the given number of mutations to know less than that many
+
−   * mutations occured.  Assuming constant 1ns mutations it would take 584
+
−   * years for sGeneration to fully wrap around so we can ignore a guard living
+
−   * through a full wrap around.
+
−   */
+
−  bool Mutated(uint8_t aIgnoreCount)
+
−  {
+
−    return (sGeneration - mStartingGeneration) > aIgnoreCount;
+
−  }
+
−
+
−  // This function should be called whenever a mutation that we want to keep
+
−  // track of happen. For now this is only done when children are added or
+
−  // removed, but we might do it for attribute changes too in the future.
+
−  static void DidMutate()
+
−  {
+
−    sGeneration++;
+
−  }
+
−
+
−private:
+
−  // This is the value sGeneration had when the guard was constructed.
+
−  uint64_t mStartingGeneration;
+
−
+
−  // This value is incremented on every mutation, for the life of the process.
+
−  static uint64_t sGeneration;
+
−};
+
−
+
−// This should be used for any nsINode sub-class that has fields of its own
+
−// that it needs to measure;  any sub-class that doesn't use it will inherit
+
−// SizeOfExcludingThis from its super-class.  SizeOfIncludingThis() need not be
+
−// defined, it is inherited from nsINode.
+
−// This macro isn't actually specific to nodes, and bug 956400 will move it into MFBT.
+
−#define NS_DECL_SIZEOF_EXCLUDING_THIS \
+
−  virtual size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
+
−
+
−// Categories of node properties
+
−// 0 is global.
+
−#define DOM_USER_DATA         1
+
−#define SMIL_MAPPED_ATTR_ANIMVAL 2
+
−
+
−// IID for the nsINode interface
+
−#define NS_INODE_IID \
+
−{ 0x70ba4547, 0x7699, 0x44fc, \
+
−  { 0xb3, 0x20, 0x52, 0xdb, 0xe3, 0xd1, 0xf9, 0x0a } }
+
−
+
−/**
+
− * An internal interface that abstracts some DOMNode-related parts that both
+
− * nsIContent and nsIDocument share.  An instance of this interface has a list
+
− * of nsIContent children and provides access to them.
+
− */
+
−class nsINode : public mozilla::dom::EventTarget
+
−{
+
−public:
+
−  typedef mozilla::dom::BoxQuadOptions BoxQuadOptions;
+
−  typedef mozilla::dom::ConvertCoordinateOptions ConvertCoordinateOptions;
+
−  typedef mozilla::dom::DOMPoint DOMPoint;
+
−  typedef mozilla::dom::DOMPointInit DOMPointInit;
+
−  typedef mozilla::dom::DOMQuad DOMQuad;
+
−  typedef mozilla::dom::DOMRectReadOnly DOMRectReadOnly;
+
−  typedef mozilla::dom::TextOrElementOrDocument TextOrElementOrDocument;
+
−  typedef mozilla::ErrorResult ErrorResult;
+
−
+
−  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INODE_IID)
+
−
+
−  // Among the sub-classes that inherit (directly or indirectly) from nsINode,
+
−  // measurement of the following members may be added later if DMD finds it is
+
−  // worthwhile:
+
−  // - nsGenericHTMLElement:  mForm, mFieldSet
+
−  // - nsGenericHTMLFrameElement: mFrameLoader (bug 672539)
+
−  // - HTMLBodyElement:       mContentStyleRule
+
−  // - HTMLDataListElement:   mOptions
+
−  // - HTMLFieldSetElement:   mElements, mDependentElements, mFirstLegend
+
−  // - HTMLFormElement:       many!
+
−  // - HTMLFrameSetElement:   mRowSpecs, mColSpecs
+
−  // - HTMLInputElement:      mInputData, mFiles, mFileList, mStaticDocfileList
+
−  // - nsHTMLMapElement:      mAreas
+
−  // - HTMLMediaElement:      many!
+
−  // - nsHTMLOutputElement:   mDefaultValue, mTokenList
+
−  // - nsHTMLRowElement:      mCells
+
−  // - nsHTMLSelectElement:   mOptions, mRestoreState
+
−  // - nsHTMLTableElement:    mTBodies, mRows, mTableInheritedAttributes
+
−  // - nsHTMLTableSectionElement: mRows
+
−  // - nsHTMLTextAreaElement: mControllers, mState
+
−  //
+
−  // The following members don't need to be measured:
+
−  // - nsIContent: mPrimaryFrame, because it's non-owning and measured elsewhere
+
−  //
+
−  virtual size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
+
−
+
−  // SizeOfIncludingThis doesn't need to be overridden by sub-classes because
+
−  // sub-classes of nsINode are guaranteed to be laid out in memory in such a
+
−  // way that |this| points to the start of the allocated object, even in
+
−  // methods of nsINode's sub-classes, and so |aMallocSizeOf(this)| is always
+
−  // safe to call no matter which object it was invoked on.
+
−  virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const {
+
−    return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
+
−  }
+
−
+
−  friend class nsNodeUtils;
+
−  friend class nsNodeWeakReference;
+
−  friend class nsNodeSupportsWeakRefTearoff;
+
−  friend class nsAttrAndChildArray;
+
−
+
−#ifdef MOZILLA_INTERNAL_API
+
−  explicit nsINode(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
+
−  : mNodeInfo(aNodeInfo),
+
−    mParent(nullptr),
+
−    mBoolFlags(0),
+
−    mNextSibling(nullptr),
+
−    mPreviousSibling(nullptr),
+
−    mFirstChild(nullptr),
+
−    mSubtreeRoot(this),
+
−    mSlots(nullptr)
+
−  {
+
−  }
+
−#endif
+
−
+
−  virtual ~nsINode();
+
−
+
−  /**
+
−   * Bit-flags to pass (or'ed together) to IsNodeOfType()
+
−   */
+
−  enum {
+
−    /** nsIContent nodes */
+
−    eCONTENT             = 1 << 0,
+
−    /** nsIDocument nodes */
+
−    eDOCUMENT            = 1 << 1,
+
−    /** nsIAttribute nodes */
+
−    eATTRIBUTE           = 1 << 2,
+
−    /** text nodes */
+
−    eTEXT                = 1 << 3,
+
−    /** xml processing instructions */
+
−    ePROCESSING_INSTRUCTION = 1 << 4,
+
−    /** comment nodes */
+
−    eCOMMENT             = 1 << 5,
+
−    /** form control elements */
+
−    eHTML_FORM_CONTROL   = 1 << 6,
+
−    /** document fragments */
+
−    eDOCUMENT_FRAGMENT   = 1 << 7,
+
−    /** data nodes (comments, PIs, text). Nodes of this type always
+
−     returns a non-null value for nsIContent::GetText() */
+
−    eDATA_NODE           = 1 << 8,
+
−    /** HTMLMediaElement */
+
−    eMEDIA               = 1 << 9,
+
−    /** animation elements */
+
−    eANIMATION           = 1 << 10,
+
−    /** filter elements that implement SVGFilterPrimitiveStandardAttributes */
+
−    eFILTER              = 1 << 11
+
−  };
+
−
+
−  /**
+
−   * API for doing a quick check if a content is of a given
+
−   * type, such as Text, Document, Comment ...  Use this when you can instead of
+
−   * checking the tag.
+
−   *
+
−   * @param aFlags what types you want to test for (see above)
+
−   * @return whether the content matches ALL flags passed in
+
−   */
+
−  virtual bool IsNodeOfType(uint32_t aFlags) const = 0;
+
−
+
−  virtual JSObject* WrapObject(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
+
−
+
−  /**
+
−   * returns true if we are in priviliged code or
+
−   * layout.css.getBoxQuads.enabled == true.
+
−   */
+
−  static bool HasBoxQuadsSupport(JSContext* aCx, JSObject* /* unused */);
+
−
+
−protected:
+
−  /**
+
−   * WrapNode is called from WrapObject to actually wrap this node, WrapObject
+
−   * does some additional checks and fix-up that's common to all nodes. WrapNode
+
−   * should just call the DOM binding's Wrap function.
+
−   *
+
−   * aGivenProto is the prototype to use (or null if the default one should be
+
−   * used) and should just be passed directly on to the DOM binding's Wrap
+
−   * function.
+
−   */
+
−  virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) = 0;
+
−
+
−public:
+
−  mozilla::dom::ParentObject GetParentObject() const; // Implemented in nsIDocument.h
+
−
+
−  /**
+
−   * Return the scope chain parent for this node, for use in things
+
−   * like event handler compilation.  Returning null means to use the
+
−   * global object as the scope chain parent.
+
−   */
+
−  virtual nsINode* GetScopeChainParent() const;
+
−
+
−  /**
+
−   * Return whether the node is an Element node
+
−   */
+
−  bool IsElement() const {
+
−    return GetBoolFlag(NodeIsElement);
+
−  }
+
−
+
−  /**
+
−   * Return this node as an Element.  Should only be used for nodes
+
−   * for which IsElement() is true.  This is defined inline in Element.h.
+
−   */
+
−  mozilla::dom::Element* AsElement();
+
−  const mozilla::dom::Element* AsElement() const;
+
−
+
−  /**
+
−   * Return this node as nsIContent.  Should only be used for nodes for which
+
−   * IsContent() is true.  This is defined inline in nsIContent.h.
+
−   */
+
−  nsIContent* AsContent();
+
−  const nsIContent* AsContent() const
+
−  {
+
−    return const_cast<nsINode*>(this)->AsContent();
+
−  }
+
−
+
−  /**
+
−   * Return this node as Text if it is one, otherwise null.  This is defined
+
−   * inline in Text.h.
+
−   */
+
−  mozilla::dom::Text* GetAsText();
+
−  const mozilla::dom::Text* GetAsText() const;
+
−
+
−  virtual nsIDOMNode* AsDOMNode() = 0;
+
−
+
−  /**
+
−   * Return if this node has any children.
+
−   */
+
−  bool HasChildren() const { return !!mFirstChild; }
+
−
+
−  /**
+
−   * Get the number of children
+
−   * @return the number of children
+
−   */
+
−  virtual uint32_t GetChildCount() const = 0;
+
−
+
−  /**
+
−   * Get a child by index
+
−   * @param aIndex the index of the child to get
+
−   * @return the child, or null if index out of bounds
+
−   */
+
−  virtual nsIContent* GetChildAt(uint32_t aIndex) const = 0;
+
−
+
−  /**
+
−   * Get a raw pointer to the child array.  This should only be used if you
+
−   * plan to walk a bunch of the kids, promise to make sure that nothing ever
+
−   * mutates (no attribute changes, not DOM tree changes, no script execution,
+
−   * NOTHING), and will never ever peform an out-of-bounds access here.  This
+
−   * method may return null if there are no children, or it may return a
+
−   * garbage pointer.  In all cases the out param will be set to the number of
+
−   * children.
+
−   */
+
−  virtual nsIContent * const * GetChildArray(uint32_t* aChildCount) const = 0;
+
−
+
−  /**
+
−   * Get the index of a child within this content
+
−   * @param aPossibleChild the child to get the index of.
+
−   * @return the index of the child, or -1 if not a child
+
−   *
+
−   * If the return value is not -1, then calling GetChildAt() with that value
+
−   * will return aPossibleChild.
+
−   */
+
−  virtual int32_t IndexOf(const nsINode* aPossibleChild) const = 0;
+
−
+
−  /**
+
−   * Returns the "node document" of this node.
+
−   *
+
−   * https://dom.spec.whatwg.org/#concept-node-document
+
−   *
+
−   * Note that in the case that this node is a document node this method
+
−   * will return |this|.  That is different to the Node.ownerDocument DOM
+
−   * attribute (implemented by nsINode::GetOwnerDocument) which is specified to
+
−   * be null in that case:
+
−   *
+
−   * https://dom.spec.whatwg.org/#dom-node-ownerdocument
+
−   *
+
−   * For all other cases GetOwnerDoc and GetOwnerDocument behave identically.
+
−   */
+
−  nsIDocument *OwnerDoc() const
+
−  {
+
−    return mNodeInfo->GetDocument();
+
−  }
+
−
+
−  /**
+
−   * Return the "owner document" of this node as an nsINode*.  Implemented
+
−   * in nsIDocument.h.
+
−   */
+
−  nsINode *OwnerDocAsNode() const;
+
−
+
−  /**
+
−   * Returns true if the content has an ancestor that is a document.
+
−   *
+
−   * @return whether this content is in a document tree
+
−   */
+
−  bool IsInUncomposedDoc() const
+
−  {
+
−    return GetBoolFlag(IsInDocument);
+
−  }
+
−
+
−  /**
+
−   * @deprecated
+
−   */
+
−  bool IsInDoc() const
+
−  {
+
−    return IsInUncomposedDoc();
+
−  }
+
−
+
−  /**
+
−   * Get the document that this content is currently in, if any. This will be
+
−   * null if the content has no ancestor that is a document.
+
−   *
+
−   * @return the current document
+
−   */
+
−
+
−  nsIDocument* GetUncomposedDoc() const
+
−  {
+
−    return IsInUncomposedDoc() ? OwnerDoc() : nullptr;
+
−  }
+
−
+
−  /**
+
−   * @deprecated
+
−   */
+
−  nsIDocument *GetCurrentDoc() const
+
−  {
+
−    return GetUncomposedDoc();
+
−  }
+
−
+
−  /**
+
−   * This method returns the owner doc if the node is in the
+
−   * composed document (as defined in the Shadow DOM spec), otherwise
+
−   * it returns null.
+
−   */
+
−  nsIDocument* GetComposedDoc() const
+
−  {
+
−    return IsInShadowTree() ?
+
−      GetComposedDocInternal() : GetUncomposedDoc();
+
−  }
+
−
+
−  /**
+
−   * @deprecated
+
−   */
+
−  nsIDocument* GetCrossShadowCurrentDoc() const
+
−  {
+
−    return GetComposedDoc();
+
−  }
+
−
+
−  /**
+
−   * Returns true if GetComposedDoc() would return a non-null value.
+
−   */
+
−  bool IsInComposedDoc() const
+
−  {
+
−    return IsInUncomposedDoc() || (IsInShadowTree() && GetComposedDocInternal());
+
−  }
+
−
+
−  /**
+
−   * The values returned by this function are the ones defined for
+
−   * nsIDOMNode.nodeType
+
−   */
+
−  uint16_t NodeType() const
+
−  {
+
−    return mNodeInfo->NodeType();
+
−  }
+
−  const nsString& NodeName() const
+
−  {
+
−    return mNodeInfo->NodeName();
+
−  }
+
−  const nsString& LocalName() const
+
−  {
+
−    return mNodeInfo->LocalName();
+
−  }
+
−
+
−  /**
+
−   * Get the NodeInfo for this element
+
−   * @return the nodes node info
+
−   */
+
−  inline mozilla::dom::NodeInfo* NodeInfo() const
+
−  {
+
−    return mNodeInfo;
+
−  }
+
−
+
−  inline bool IsInNamespace(int32_t aNamespace) const
+
−  {
+
−    return mNodeInfo->NamespaceID() == aNamespace;
+
−  }
+
−
+
−  /**
+
−   * Print a debugger friendly descriptor of this element. This will describe
+
−   * the position of this element in the document.
+
−   */
+
−  friend std::ostream& operator<<(std::ostream& aStream, const nsINode& aNode);
+
−
+
−protected:
+
−  // These 2 methods are useful for the recursive templates IsHTMLElement,
+
−  // IsSVGElement, etc.
+
−  inline bool IsNodeInternal() const
+
−  {
+
−    return false;
+
−  }
+
−
+
−  template<typename First, typename... Args>
+
−  inline bool IsNodeInternal(First aFirst, Args... aArgs) const
+
−  {
+
−    return mNodeInfo->Equals(aFirst) || IsNodeInternal(aArgs...);
+
−  }
+
−
+
−public:
+
−  inline bool IsHTMLElement() const
+
−  {
+
−    return IsElement() && IsInNamespace(kNameSpaceID_XHTML);
+
−  }
+
−
+
−  inline bool IsHTMLElement(nsIAtom* aTag) const
+
−  {
+
−    return IsElement() && mNodeInfo->Equals(aTag, kNameSpaceID_XHTML);
+
−  }
+
−
+
−  template<typename First, typename... Args>
+
−  inline bool IsAnyOfHTMLElements(First aFirst, Args... aArgs) const
+
−  {
+
−    return IsHTMLElement() && IsNodeInternal(aFirst, aArgs...);
+
−  }
+
−
+
−  inline bool IsSVGElement() const
+
−  {
+
−    return IsElement() && IsInNamespace(kNameSpaceID_SVG);
+
−  }
+
−
+
−  inline bool IsSVGElement(nsIAtom* aTag) const
+
−  {
+
−    return IsElement() && mNodeInfo->Equals(aTag, kNameSpaceID_SVG);
+
−  }
+
−
+
−  template<typename First, typename... Args>
+
−  inline bool IsAnyOfSVGElements(First aFirst, Args... aArgs) const
+
−  {
+
−    return IsSVGElement() && IsNodeInternal(aFirst, aArgs...);
+
−  }
+
−
+
−  inline bool IsXULElement() const
+
−  {
+
−    return IsElement() && IsInNamespace(kNameSpaceID_XUL);
+
−  }
+
−
+
−  inline bool IsXULElement(nsIAtom* aTag) const
+
−  {
+
−    return IsElement() && mNodeInfo->Equals(aTag, kNameSpaceID_XUL);
+
−  }
+
−
+
−  template<typename First, typename... Args>
+
−  inline bool IsAnyOfXULElements(First aFirst, Args... aArgs) const
+
−  {
+
−    return IsXULElement() && IsNodeInternal(aFirst, aArgs...);
+
−  }
+
−
+
−  inline bool IsMathMLElement() const
+
−  {
+
−    return IsElement() && IsInNamespace(kNameSpaceID_MathML);
+
−  }
+
−
+
−  inline bool IsMathMLElement(nsIAtom* aTag) const
+
−  {
+
−    return IsElement() && mNodeInfo->Equals(aTag, kNameSpaceID_MathML);
+
−  }
+
−
+
−  template<typename First, typename... Args>
+
−  inline bool IsAnyOfMathMLElements(First aFirst, Args... aArgs) const
+
−  {
+
−    return IsMathMLElement() && IsNodeInternal(aFirst, aArgs...);
+
−  }
+
−
+
−  /**
+
−   * Insert a content node at a particular index.  This method handles calling
+
−   * BindToTree on the child appropriately.
+
−   *
+
−   * @param aKid the content to insert
+
−   * @param aIndex the index it is being inserted at (the index it will have
+
−   *        after it is inserted)
+
−   * @param aNotify whether to notify the document (current document for
+
−   *        nsIContent, and |this| for nsIDocument) that the insert has
+
−   *        occurred
+
−   *
+
−   * @throws NS_ERROR_DOM_HIERARCHY_REQUEST_ERR if one attempts to have more
+
−   * than one element node as a child of a document.  Doing this will also
+
−   * assert -- you shouldn't be doing it!  Check with
+
−   * nsIDocument::GetRootElement() first if you're not sure.  Apart from this
+
−   * one constraint, this doesn't do any checking on whether aKid is a valid
+
−   * child of |this|.
+
−   *
+
−   * @throws NS_ERROR_OUT_OF_MEMORY in some cases (from BindToTree).
+
−   */
+
−  virtual nsresult InsertChildAt(nsIContent* aKid, uint32_t aIndex,
+
−                                 bool aNotify) = 0;
+
−
+
−  /**
+
−   * Append a content node to the end of the child list.  This method handles
+
−   * calling BindToTree on the child appropriately.
+
−   *
+
−   * @param aKid the content to append
+
−   * @param aNotify whether to notify the document (current document for
+
−   *        nsIContent, and |this| for nsIDocument) that the append has
+
−   *        occurred
+
−   *
+
−   * @throws NS_ERROR_DOM_HIERARCHY_REQUEST_ERR if one attempts to have more
+
−   * than one element node as a child of a document.  Doing this will also
+
−   * assert -- you shouldn't be doing it!  Check with
+
−   * nsIDocument::GetRootElement() first if you're not sure.  Apart from this
+
−   * one constraint, this doesn't do any checking on whether aKid is a valid
+
−   * child of |this|.
+
−   *
+
−   * @throws NS_ERROR_OUT_OF_MEMORY in some cases (from BindToTree).
+
−   */
+
−  nsresult AppendChildTo(nsIContent* aKid, bool aNotify)
+
−  {
+
−    return InsertChildAt(aKid, GetChildCount(), aNotify);
+
−  }
+
−  
+
−  /**
+
−   * Remove a child from this node.  This method handles calling UnbindFromTree
+
−   * on the child appropriately.
+
−   *
+
−   * @param aIndex the index of the child to remove
+
−   * @param aNotify whether to notify the document (current document for
+
−   *        nsIContent, and |this| for nsIDocument) that the remove has
+
−   *        occurred
+
−   *
+
−   * Note: If there is no child at aIndex, this method will simply do nothing.
+
−   */
+
−  virtual void RemoveChildAt(uint32_t aIndex, bool aNotify) = 0;
+
−
+
−  /**
+
−   * Get a property associated with this node.
+
−   *
+
−   * @param aPropertyName  name of property to get.
+
−   * @param aStatus        out parameter for storing resulting status.
+
−   *                       Set to NS_PROPTABLE_PROP_NOT_THERE if the property
+
−   *                       is not set.
+
−   * @return               the property. Null if the property is not set
+
−   *                       (though a null return value does not imply the
+
−   *                       property was not set, i.e. it can be set to null).
+
−   */
+
−  void* GetProperty(nsIAtom *aPropertyName,
+
−                    nsresult *aStatus = nullptr) const
+
−  {
+
−    return GetProperty(0, aPropertyName, aStatus);
+
−  }
+
−
+
−  /**
+
−   * Get a property associated with this node.
+
−   *
+
−   * @param aCategory      category of property to get.
+
−   * @param aPropertyName  name of property to get.
+
−   * @param aStatus        out parameter for storing resulting status.
+
−   *                       Set to NS_PROPTABLE_PROP_NOT_THERE if the property
+
−   *                       is not set.
+
−   * @return               the property. Null if the property is not set
+
−   *                       (though a null return value does not imply the
+
−   *                       property was not set, i.e. it can be set to null).
+
−   */
+
−  virtual void* GetProperty(uint16_t aCategory,
+
−                            nsIAtom *aPropertyName,
+
−                            nsresult *aStatus = nullptr) const;
+
−
+
−  /**
+
−   * Set a property to be associated with this node. This will overwrite an
+
−   * existing value if one exists. The existing value is destroyed using the
+
−   * destructor function given when that value was set.
+
−   *
+
−   * @param aPropertyName  name of property to set.
+
−   * @param aValue         new value of property.
+
−   * @param aDtor          destructor function to be used when this property
+
−   *                       is destroyed.
+
−   * @param aTransfer      if true the property will not be deleted when the
+
−   *                       ownerDocument of the node changes, if false it
+
−   *                       will be deleted.
+
−   *
+
−   * @return NS_PROPTABLE_PROP_OVERWRITTEN (success value) if the property
+
−   *                                       was already set
+
−   * @throws NS_ERROR_OUT_OF_MEMORY if that occurs
+
−   */
+
−  nsresult SetProperty(nsIAtom *aPropertyName,
+
−                       void *aValue,
+
−                       NSPropertyDtorFunc aDtor = nullptr,
+
−                       bool aTransfer = false)
+
−  {
+
−    return SetProperty(0, aPropertyName, aValue, aDtor, aTransfer);
+
−  }
+
−
+
−  /**
+
−   * Set a property to be associated with this node. This will overwrite an
+
−   * existing value if one exists. The existing value is destroyed using the
+
−   * destructor function given when that value was set.
+
−   *
+
−   * @param aCategory       category of property to set.
+
−   * @param aPropertyName   name of property to set.
+
−   * @param aValue          new value of property.
+
−   * @param aDtor           destructor function to be used when this property
+
−   *                        is destroyed.
+
−   * @param aTransfer       if true the property will not be deleted when the
+
−   *                        ownerDocument of the node changes, if false it
+
−   *                        will be deleted.
+
−   * @param aOldValue [out] previous value of property.
+
−   *
+
−   * @return NS_PROPTABLE_PROP_OVERWRITTEN (success value) if the property
+
−   *                                       was already set
+
−   * @throws NS_ERROR_OUT_OF_MEMORY if that occurs
+
−   */
+
−  virtual nsresult SetProperty(uint16_t aCategory,
+
−                               nsIAtom *aPropertyName,
+
−                               void *aValue,
+
−                               NSPropertyDtorFunc aDtor = nullptr,
+
−                               bool aTransfer = false,
+
−                               void **aOldValue = nullptr);
+
−
+
−  /**
+
−   * A generic destructor for property values allocated with new.
+
−   */
+
−  template<class T>
+
−  static void DeleteProperty(void *, nsIAtom *, void *aPropertyValue, void *)
+
−  {
+
−    delete static_cast<T *>(aPropertyValue);
+
−  }
+
−
+
−  /**
+
−   * Destroys a property associated with this node. The value is destroyed
+
−   * using the destruction function given when that value was set.
+
−   *
+
−   * @param aPropertyName  name of property to destroy.
+
−   */
+
−  void DeleteProperty(nsIAtom *aPropertyName)
+
−  {
+
−    DeleteProperty(0, aPropertyName);
+
−  }
+
−
+
−  /**
+
−   * Destroys a property associated with this node. The value is destroyed
+
−   * using the destruction function given when that value was set.
+
−   *
+
−   * @param aCategory      category of property to destroy.
+
−   * @param aPropertyName  name of property to destroy.
+
−   */
+
−  virtual void DeleteProperty(uint16_t aCategory, nsIAtom *aPropertyName);
+
−
+
−  /**
+
−   * Unset a property associated with this node. The value will not be
+
−   * destroyed but rather returned. It is the caller's responsibility to
+
−   * destroy the value after that point.
+
−   *
+
−   * @param aPropertyName  name of property to unset.
+
−   * @param aStatus        out parameter for storing resulting status.
+
−   *                       Set to NS_PROPTABLE_PROP_NOT_THERE if the property
+
−   *                       is not set.
+
−   * @return               the property. Null if the property is not set
+
−   *                       (though a null return value does not imply the
+
−   *                       property was not set, i.e. it can be set to null).
+
−   */
+
−  void* UnsetProperty(nsIAtom  *aPropertyName,
+
−                      nsresult *aStatus = nullptr)
+
−  {
+
−    return UnsetProperty(0, aPropertyName, aStatus);
+
−  }
+
−
+
−  /**
+
−   * Unset a property associated with this node. The value will not be
+
−   * destroyed but rather returned. It is the caller's responsibility to
+
−   * destroy the value after that point.
+
−   *
+
−   * @param aCategory      category of property to unset.
+
−   * @param aPropertyName  name of property to unset.
+
−   * @param aStatus        out parameter for storing resulting status.
+
−   *                       Set to NS_PROPTABLE_PROP_NOT_THERE if the property
+
−   *                       is not set.
+
−   * @return               the property. Null if the property is not set
+
−   *                       (though a null return value does not imply the
+
−   *                       property was not set, i.e. it can be set to null).
+
−   */
+
−  virtual void* UnsetProperty(uint16_t aCategory,
+
−                              nsIAtom *aPropertyName,
+
−                              nsresult *aStatus = nullptr);
+
−  
+
−  bool HasProperties() const
+
−  {
+
−    return HasFlag(NODE_HAS_PROPERTIES);
+
−  }
+
−
+
−  /**
+
−   * Return the principal of this node.  This is guaranteed to never be a null
+
−   * pointer.
+
−   */
+
−  nsIPrincipal* NodePrincipal() const {
+
−    return mNodeInfo->NodeInfoManager()->DocumentPrincipal();
+
−  }
+
−
+
−  /**
+
−   * Get the parent nsIContent for this node.
+
−   * @return the parent, or null if no parent or the parent is not an nsIContent
+
−   */
+
−  nsIContent* GetParent() const {
+
−    return MOZ_LIKELY(GetBoolFlag(ParentIsContent)) ?
+
−      reinterpret_cast<nsIContent*>(mParent) : nullptr;
+
−  }
+
−
+
−  /**
+
−   * Get the parent nsINode for this node. This can be either an nsIContent,
+
−   * an nsIDocument or an nsIAttribute.
+
−   * @return the parent node
+
−   */
+
−  nsINode* GetParentNode() const
+
−  {
+
−    return mParent;
+
−  }
+
−  
+
−  /**
+
−   * Get the parent nsINode for this node if it is an Element.
+
−   * @return the parent node
+
−   */
+
−  mozilla::dom::Element* GetParentElement() const
+
−  {
+
−    return mParent && mParent->IsElement() ? mParent->AsElement() : nullptr;
+
−  }
+
−
+
−  /**
+
−   * Get the parent Element of this node, traversing over a ShadowRoot
+
−   * to its host if necessary.
+
−   */
+
−  mozilla::dom::Element* GetParentElementCrossingShadowRoot() const;
+
−
+
−  /**
+
−   * Get the root of the subtree this node belongs to.  This never returns
+
−   * null.  It may return 'this' (e.g. for document nodes, and nodes that
+
−   * are the roots of disconnected subtrees).
+
−   */
+
−  nsINode* SubtreeRoot() const;
+
−
+
−  /**
+
−   * See nsIDOMEventTarget
+
−   */
+
−  NS_DECL_NSIDOMEVENTTARGET
+
−
+
−  virtual mozilla::EventListenerManager*
+
−    GetExistingListenerManager() const override;
+
−  virtual mozilla::EventListenerManager*
+
−    GetOrCreateListenerManager() override;
+
−
+
−  using mozilla::dom::EventTarget::RemoveEventListener;
+
−  using nsIDOMEventTarget::AddEventListener;
+
−  virtual void AddEventListener(const nsAString& aType,
+
−                                mozilla::dom::EventListener* aListener,
+
−                                bool aUseCapture,
+
−                                const mozilla::dom::Nullable<bool>& aWantsUntrusted,
+
−                                mozilla::ErrorResult& aRv) override;
+
−  using nsIDOMEventTarget::AddSystemEventListener;
+
−
+
−  virtual bool HasApzAwareListeners() const override;
+
−
+
−  virtual nsPIDOMWindowOuter* GetOwnerGlobalForBindings() override;
+
−  virtual nsIGlobalObject* GetOwnerGlobal() const override;
+
−
+
−  /**
+
−   * Adds a mutation observer to be notified when this node, or any of its
+
−   * descendants, are modified. The node will hold a weak reference to the
+
−   * observer, which means that it is the responsibility of the observer to
+
−   * remove itself in case it dies before the node.  If an observer is added
+
−   * while observers are being notified, it may also be notified.  In general,
+
−   * adding observers while inside a notification is not a good idea.  An
+
−   * observer that is already observing the node must not be added without
+
−   * being removed first.
+
−   *
+
−   * For mutation observers that implement nsIAnimationObserver, use
+
−   * AddAnimationObserver instead.
+
−   */
+
−  void AddMutationObserver(nsIMutationObserver* aMutationObserver)
+
−  {
+
−    nsSlots* s = Slots();
+
−    NS_ASSERTION(s->mMutationObservers.IndexOf(aMutationObserver) ==
+
−                 nsTArray<int>::NoIndex,
+
−                 "Observer already in the list");
+
−    s->mMutationObservers.AppendElement(aMutationObserver);
+
−  }
+
−
+
−  /**
+
−   * Same as above, but only adds the observer if its not observing
+
−   * the node already.
+
−   *
+
−   * For mutation observers that implement nsIAnimationObserver, use
+
−   * AddAnimationObserverUnlessExists instead.
+
−   */
+
−  void AddMutationObserverUnlessExists(nsIMutationObserver* aMutationObserver)
+
−  {
+
−    nsSlots* s = Slots();
+
−    s->mMutationObservers.AppendElementUnlessExists(aMutationObserver);
+
−  }
+
−
+
−  /**
+
−   * Same as AddMutationObserver, but for nsIAnimationObservers.  This
+
−   * additionally records on the document that animation observers have
+
−   * been registered, which is used to determine whether notifications
+
−   * must be fired when animations are added, removed or changed.
+
−   */
+
−  void AddAnimationObserver(nsIAnimationObserver* aAnimationObserver);
+
−
+
−  /**
+
−   * Same as above, but only adds the observer if its not observing
+
−   * the node already.
+
−   */
+
−  void AddAnimationObserverUnlessExists(nsIAnimationObserver* aAnimationObserver);
+
−
+
−  /**
+
−   * Removes a mutation observer.
+
−   */
+
−  void RemoveMutationObserver(nsIMutationObserver* aMutationObserver)
+
−  {
+
−    nsSlots* s = GetExistingSlots();
+
−    if (s) {
+
−      s->mMutationObservers.RemoveElement(aMutationObserver);
+
−    }
+
−  }
+
−
+
−  /**
+
−   * Clones this node. This needs to be overriden by all node classes. aNodeInfo
+
−   * should be identical to this node's nodeInfo, except for the document which
+
−   * may be different. When cloning an element, all attributes of the element
+
−   * will be cloned. The children of the node will not be cloned.
+
−   *
+
−   * @param aNodeInfo the nodeinfo to use for the clone
+
−   * @param aResult the clone
+
−   */
+
−  virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const = 0;
+
−
+
−  // This class can be extended by subclasses that wish to store more
+
−  // information in the slots.
+
−  class nsSlots
+
−  {
+
−  public:
+
−    nsSlots();
+
−
+
−    // If needed we could remove the vtable pointer this dtor causes by
+
−    // putting a DestroySlots function on nsINode
+
−    virtual ~nsSlots();
+
−
+
−    void Traverse(nsCycleCollectionTraversalCallback &cb);
+
−    void Unlink();
+
−
+
−    /**
+
−     * A list of mutation observers
+
−     */
+
−    nsTObserverArray<nsIMutationObserver*> mMutationObservers;
+
−
+
−    /**
+
−     * An object implementing nsIDOMNodeList for this content (childNodes)
+
−     * @see nsIDOMNodeList
+
−     * @see nsGenericHTMLElement::GetChildNodes
+
−     */
+
−    RefPtr<nsChildContentList> mChildNodes;
+
−
+
−    /**
+
−     * Weak reference to this node.  This is cleared by the destructor of
+
−     * nsNodeWeakReference.
+
−     */
+
−    nsNodeWeakReference* MOZ_NON_OWNING_REF mWeakReference;
+
−
+
−    /**
+
−     * Number of descendant nodes in the uncomposed document that have been
+
−     * explicitly set as editable.
+
−     */
+
−    uint32_t mEditableDescendantCount;
+
−  };
+
−
+
−  /**
+
−   * Functions for managing flags and slots
+
−   */
+
−#ifdef DEBUG
+
−  nsSlots* DebugGetSlots()
+
−  {
+
−    return Slots();
+
−  }
+
−#endif
+
−
+
−  void SetFlags(FlagsType aFlagsToSet)
+
−  {
+
−    NS_ASSERTION(!(aFlagsToSet & (NODE_IS_ANONYMOUS_ROOT |
+
−                                  NODE_IS_NATIVE_ANONYMOUS_ROOT |
+
−                                  NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE |
+
−                                  NODE_DESCENDANTS_NEED_FRAMES |
+
−                                  NODE_NEEDS_FRAME |
+
−                                  NODE_CHROME_ONLY_ACCESS)) ||
+
−                 IsNodeOfType(eCONTENT),
+
−                 "Flag only permitted on nsIContent nodes");
+
−    nsWrapperCache::SetFlags(aFlagsToSet);
+
−  }
+
−
+
−  void UnsetFlags(FlagsType aFlagsToUnset)
+
−  {
+
−    NS_ASSERTION(!(aFlagsToUnset &
+
−                   (NODE_IS_ANONYMOUS_ROOT |
+
−                    NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE |
+
−                    NODE_IS_NATIVE_ANONYMOUS_ROOT)),
+
−                 "Trying to unset write-only flags");
+
−    nsWrapperCache::UnsetFlags(aFlagsToUnset);
+
−  }
+
−
+
−  void ChangeEditableDescendantCount(int32_t aDelta);
+
−
+
−  /**
+
−   * Returns the count of descendant nodes in the uncomposed
+
−   * document that are explicitly set as editable.
+
−   */
+
−  uint32_t EditableDescendantCount();
+
−
+
−  /**
+
−   * Sets the editable descendant count to 0. The editable
+
−   * descendant count only counts explicitly editable nodes
+
−   * that are in the uncomposed document so this method
+
−   * should be called when nodes are are removed from it.
+
−   */
+
−  void ResetEditableDescendantCount();
+
−
+
−  void SetEditableFlag(bool aEditable)
+
−  {
+
−    if (aEditable) {
+
−      SetFlags(NODE_IS_EDITABLE);
+
−    }
+
−    else {
+
−      UnsetFlags(NODE_IS_EDITABLE);
+
−    }
+
−  }
+
−
+
−  bool IsEditable() const
+
−  {
+
−#ifdef MOZILLA_INTERNAL_API
+
−    return IsEditableInternal();
+
−#else
+
−    return IsEditableExternal();
+
−#endif
+
−  }
+
−
+
−  /**
+
−   * Returns true if |this| or any of its ancestors is native anonymous.
+
−   */
+
−  bool IsInNativeAnonymousSubtree() const
+
−  {
+
−#ifdef DEBUG
+
−    if (HasFlag(NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE)) {
+
−      return true;
+
−    }
+
−    CheckNotNativeAnonymous();
+
−    return false;
+
−#else
+
−    return HasFlag(NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE);
+
−#endif
+
−  }
+
−
+
−  bool IsInAnonymousSubtree() const;
+
−
+
−  // Note: This asserts |IsInAnonymousSubtree()|.
+
−  bool IsAnonymousContentInSVGUseSubtree() const;
+
−
+
−  // True for native anonymous content and for XBL content if the binding
+
−  // has chromeOnlyContent="true".
+
−  bool ChromeOnlyAccess() const
+
−  {
+
−    return HasFlag(NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE | NODE_CHROME_ONLY_ACCESS);
+
−  }
+
−
+
−  bool IsInShadowTree() const
+
−  {
+
−    return HasFlag(NODE_IS_IN_SHADOW_TREE);
+
−  }
+
−
+
−  /**
+
−   * Returns true if |this| node is the common ancestor of the start/end
+
−   * nodes of a Range in a Selection or a descendant of such a common ancestor.
+
−   * This node is definitely not selected when |false| is returned, but it may
+
−   * or may not be selected when |true| is returned.
+
−   */
+
−  bool IsSelectionDescendant() const
+
−  {
+
−    return IsDescendantOfCommonAncestorForRangeInSelection() ||
+
−           IsCommonAncestorForRangeInSelection();
+
−  }
+
−
+
−  /**
+
−   * Get the root content of an editor. So, this node must be a descendant of
+
−   * an editor. Note that this should be only used for getting input or textarea
+
−   * editor's root content. This method doesn't support HTML editors.
+
−   */
+
−  nsIContent* GetTextEditorRootContent(nsIEditor** aEditor = nullptr);
+
−
+
−  /**
+
−   * Get the nearest selection root, ie. the node that will be selected if the
+
−   * user does "Select All" while the focus is in this node. Note that if this
+
−   * node is not in an editor, the result comes from the nsFrameSelection that
+
−   * is related to aPresShell, so the result might not be the ancestor of this
+
−   * node. Be aware that if this node and the computed selection limiter are
+
−   * not in same subtree, this returns the root content of the closeset subtree.
+
−   */
+
−  nsIContent* GetSelectionRootContent(nsIPresShell* aPresShell);
+
−
+
−  virtual nsINodeList* ChildNodes();
+
−  nsIContent* GetFirstChild() const { return mFirstChild; }
+
−  nsIContent* GetLastChild() const
+
−  {
+
−    uint32_t count;
+
−    nsIContent* const* children = GetChildArray(&count);
+
−
+
−    return count > 0 ? children[count - 1] : nullptr;
+
−  }
+
−
+
−  /**
+
−   * Implementation is in nsIDocument.h, because it needs to cast from
+
−   * nsIDocument* to nsINode*.
+
−   */
+
−  nsIDocument* GetOwnerDocument() const;
+
−
+
−  void Normalize();
+
−
+
−  /**
+
−   * Get the base URI for any relative URIs within this piece of
+
−   * content. Generally, this is the document's base URI, but certain
+
−   * content carries a local base for backward compatibility, and XML
+
−   * supports setting a per-node base URI.
+
−   *
+
−   * @return the base URI
+
−   */
+
−  virtual already_AddRefed<nsIURI> GetBaseURI(bool aTryUseXHRDocBaseURI = false) const = 0;
+
−  already_AddRefed<nsIURI> GetBaseURIObject() const;
+
−
+
−  /**
+
−   * Facility for explicitly setting a base URI on a node.
+
−   */
+
−  nsresult SetExplicitBaseURI(nsIURI* aURI);
+
−  /**
+
−   * The explicit base URI, if set, otherwise null
+
−   */
+
−protected:
+
−  nsIURI* GetExplicitBaseURI() const {
+
−    if (HasExplicitBaseURI()) {
+
−      return static_cast<nsIURI*>(GetProperty(nsGkAtoms::baseURIProperty));
+
−    }
+
−    return nullptr;
+
−  }
+
−  
+
−public:
+
−  void GetTextContent(nsAString& aTextContent,
+
−                      mozilla::ErrorResult& aError)
+
−  {
+
−    GetTextContentInternal(aTextContent, aError);
+
−  }
+
−  void SetTextContent(const nsAString& aTextContent,
+
−                      mozilla::ErrorResult& aError)
+
−  {
+
−    SetTextContentInternal(aTextContent, aError);
+
−  }
+
−
+
−  mozilla::dom::Element* QuerySelector(const nsAString& aSelector,
+
−                                       mozilla::ErrorResult& aResult);
+
−  already_AddRefed<nsINodeList> QuerySelectorAll(const nsAString& aSelector,
+
−                                                 mozilla::ErrorResult& aResult);
+
−
+
−  nsresult QuerySelector(const nsAString& aSelector, nsIDOMElement **aReturn);
+
−  nsresult QuerySelectorAll(const nsAString& aSelector, nsIDOMNodeList **aReturn);
+
−
+
−protected:
+
−  // nsIDocument overrides this with its own (faster) version.  This
+
−  // should really only be called for elements and document fragments.
+
−  mozilla::dom::Element* GetElementById(const nsAString& aId);
+
−
+
−public:
+
−  /**
+
−   * Associate an object aData to aKey on this node. If aData is null any
+
−   * previously registered object associated to aKey on this node will
+
−   * be removed.
+
−   * Should only be used to implement the DOM Level 3 UserData API.
+
−   *
+
−   * @param aKey the key to associate the object to
+
−   * @param aData the object to associate to aKey on this node (may be null)
+
−   * @param aResult [out] the previously registered object for aKey on this
+
−   *                      node, if any
+
−   * @return whether adding the object succeeded
+
−   */
+
−  nsresult SetUserData(const nsAString& aKey, nsIVariant* aData,
+
−                       nsIVariant** aResult);
+
−
+
−  /**
+
−   * Get the UserData object registered for a Key on this node, if any.
+
−   * Should only be used to implement the DOM Level 3 UserData API.
+
−   *
+
−   * @param aKey the key to get UserData for
+
−   * @return aResult the previously registered object for aKey on this node, if
+
−   *                 any
+
−   */
+
−  nsIVariant* GetUserData(const nsAString& aKey);
+
−
+
−  nsresult GetUserData(const nsAString& aKey, nsIVariant** aResult)
+
−  {
+
−    NS_IF_ADDREF(*aResult = GetUserData(aKey));
+
−  
+
−    return NS_OK;
+
−  }
+
−
+
−  void LookupPrefix(const nsAString& aNamespace, nsAString& aResult);
+
−  bool IsDefaultNamespace(const nsAString& aNamespaceURI)
+
−  {
+
−    nsAutoString defaultNamespace;
+
−    LookupNamespaceURI(EmptyString(), defaultNamespace);
+
−    return aNamespaceURI.Equals(defaultNamespace);
+
−  }
+
−  void LookupNamespaceURI(const nsAString& aNamespacePrefix,
+
−                          nsAString& aNamespaceURI);
+
−
+
−  nsresult IsEqualNode(nsIDOMNode* aOther, bool* aReturn);
+
−
+
−  nsIContent* GetNextSibling() const { return mNextSibling; }
+
−  nsIContent* GetPreviousSibling() const { return mPreviousSibling; }
+
−
+
−  /**
+
−   * Get the next node in the pre-order tree traversal of the DOM.  If
+
−   * aRoot is non-null, then it must be an ancestor of |this|
+
−   * (possibly equal to |this|) and only nodes that are descendants of
+
−   * aRoot, not including aRoot itself, will be returned.  Returns
+
−   * null if there are no more nodes to traverse.
+
−   */
+
−  nsIContent* GetNextNode(const nsINode* aRoot = nullptr) const
+
−  {
+
−    return GetNextNodeImpl(aRoot, false);
+
−  }
+
−
+
−  /**
+
−   * Get the next node in the pre-order tree traversal of the DOM but ignoring
+
−   * the children of this node.  If aRoot is non-null, then it must be an
+
−   * ancestor of |this| (possibly equal to |this|) and only nodes that are
+
−   * descendants of aRoot, not including aRoot itself, will be returned.
+
−   * Returns null if there are no more nodes to traverse.
+
−   */
+
−  nsIContent* GetNextNonChildNode(const nsINode* aRoot = nullptr) const
+
−  {
+
−    return GetNextNodeImpl(aRoot, true);
+
−  }
+
−
+
−  /**
+
−   * Returns true if 'this' is either document or element or
+
−   * document fragment and aOther is a descendant in the same
+
−   * anonymous tree.
+
−   */
+
−  bool Contains(const nsINode* aOther) const;
+
−  nsresult Contains(nsIDOMNode* aOther, bool* aReturn);
+
−
+
−  bool UnoptimizableCCNode() const;
+
−
+
−private:
+
−
+
−  nsIDocument* GetComposedDocInternal() const;
+
−
+
−  nsIContent* GetNextNodeImpl(const nsINode* aRoot,
+
−                              const bool aSkipChildren) const
+
−  {
+
−    // Can't use nsContentUtils::ContentIsDescendantOf here, since we
+
−    // can't include it here.
+
−#ifdef DEBUG
+
−    if (aRoot) {
+
−      const nsINode* cur = this;
+
−      for (; cur; cur = cur->GetParentNode())
+
−        if (cur == aRoot) break;
+
−      NS_ASSERTION(cur, "aRoot not an ancestor of |this|?");
+
−    }
+
−#endif
+
−    if (!aSkipChildren) {
+
−      nsIContent* kid = GetFirstChild();
+
−      if (kid) {
+
−        return kid;
+
−      }
+
−    }
+
−    if (this == aRoot) {
+
−      return nullptr;
+
−    }
+
−    const nsINode* cur = this;
+
−    while (1) {
+
−      nsIContent* next = cur->GetNextSibling();
+
−      if (next) {
+
−        return next;
+
−      }
+
−      nsINode* parent = cur->GetParentNode();
+
−      if (parent == aRoot) {
+
−        return nullptr;
+
−      }
+
−      cur = parent;
+
−    }
+
−    NS_NOTREACHED("How did we get here?");
+
−  }
+
−
+
−public:
+
−
+
−  /**
+
−   * Get the previous nsIContent in the pre-order tree traversal of the DOM.  If
+
−   * aRoot is non-null, then it must be an ancestor of |this|
+
−   * (possibly equal to |this|) and only nsIContents that are descendants of
+
−   * aRoot, including aRoot itself, will be returned.  Returns
+
−   * null if there are no more nsIContents to traverse.
+
−   */
+
−  nsIContent* GetPreviousContent(const nsINode* aRoot = nullptr) const
+
−  {
+
−      // Can't use nsContentUtils::ContentIsDescendantOf here, since we
+
−      // can't include it here.
+
−#ifdef DEBUG
+
−      if (aRoot) {
+
−        const nsINode* cur = this;
+
−        for (; cur; cur = cur->GetParentNode())
+
−          if (cur == aRoot) break;
+
−        NS_ASSERTION(cur, "aRoot not an ancestor of |this|?");
+
−      }
+
−#endif
+
−
+
−    if (this == aRoot) {
+
−      return nullptr;
+
−    }
+
−    nsIContent* cur = this->GetParent();
+
−    nsIContent* iter = this->GetPreviousSibling();
+
−    while (iter) {
+
−      cur = iter;
+
−      iter = reinterpret_cast<nsINode*>(iter)->GetLastChild();
+
−    }
+
−    return cur;
+
−  }
+
−
+
−  /**
+
−   * Boolean flags
+
−   */
+
−private:
+
−  enum BooleanFlag {
+
−    // Set if we're being used from -moz-element
+
−    NodeHasRenderingObservers,
+
−    // Set if our parent chain (including this node itself) terminates
+
−    // in a document
+
−    IsInDocument,
+
−    // Set if mParent is an nsIContent
+
−    ParentIsContent,
+
−    // Set if this node is an Element
+
−    NodeIsElement,
+
−    // Set if the element has a non-empty id attribute. This can in rare
+
−    // cases lie for nsXMLElement, such as when the node has been moved between
+
−    // documents with different id mappings.
+
−    ElementHasID,
+
−    // Set if the element might have inline style.
+
−    ElementMayHaveStyle,
+
−    // Set if the element has a name attribute set.
+
−    ElementHasName,
+
−    // Set if the element might have a contenteditable attribute set.
+
−    ElementMayHaveContentEditableAttr,
+
−    // Set if the node is the common ancestor of the start/end nodes of a Range
+
−    // that is in a Selection.
+
−    NodeIsCommonAncestorForRangeInSelection,
+
−    // Set if the node is a descendant of a node with the above bit set.
+
−    NodeIsDescendantOfCommonAncestorForRangeInSelection,
+
−    // Set if CanSkipInCC check has been done for this subtree root.
+
−    NodeIsCCMarkedRoot,
+
−    // Maybe set if this node is in black subtree.
+
−    NodeIsCCBlackTree,
+
−    // Maybe set if the node is a root of a subtree 
+
−    // which needs to be kept in the purple buffer.
+
−    NodeIsPurpleRoot,
+
−    // Set if the node has an explicit base URI stored
+
−    NodeHasExplicitBaseURI,
+
−    // Set if the element has some style states locked
+
−    ElementHasLockedStyleStates,
+
−    // Set if element has pointer locked
+
−    ElementHasPointerLock,
+
−    // Set if the node may have DOMMutationObserver attached to it.
+
−    NodeMayHaveDOMMutationObserver,
+
−    // Set if node is Content
+
−    NodeIsContent,
+
−    // Set if the node has animations or transitions
+
−    ElementHasAnimations,
+
−    // Set if node has a dir attribute with a valid value (ltr, rtl, or auto)
+
−    NodeHasValidDirAttribute,
+
−    // Set if node has a dir attribute with a fixed value (ltr or rtl, NOT auto)
+
−    NodeHasFixedDir,
+
−    // Set if the node has dir=auto and has a property pointing to the text
+
−    // node that determines its direction
+
−    NodeHasDirAutoSet,
+
−    // Set if the node is a text node descendant of a node with dir=auto
+
−    // and has a TextNodeDirectionalityMap property listing the elements whose
+
−    // direction it determines.
+
−    NodeHasTextNodeDirectionalityMap,
+
−    // Set if the node has dir=auto.
+
−    NodeHasDirAuto,
+
−    // Set if a node in the node's parent chain has dir=auto.
+
−    NodeAncestorHasDirAuto,
+
−    // Set if the element is in the scope of a scoped style sheet; this flag is
+
−    // only accurate for elements bound to a document
+
−    ElementIsInStyleScope,
+
−    // Set if the element is a scoped style sheet root
+
−    ElementIsScopedStyleRoot,
+
−    // Set if the node is handling a click.
+
−    NodeHandlingClick,
+
−    // Set if the node has had :hover selectors matched against it
+
−    NodeHasRelevantHoverRules,
+
−    // Set if the element has a parser insertion mode other than "in body",
+
−    // per the HTML5 "Parse state" section.
+
−    ElementHasWeirdParserInsertionMode,
+
−    // Parser sets this flag if it has notified about the node.
+
−    ParserHasNotified,
+
−    // EventListenerManager sets this flag in case we have apz aware listeners.
+
−    MayHaveApzAwareListeners,
+
−    // Guard value
+
−    BooleanFlagCount
+
−  };
+
−
+
−  void SetBoolFlag(BooleanFlag name, bool value) {
+
−    static_assert(BooleanFlagCount <= 8*sizeof(mBoolFlags),
+
−                  "Too many boolean flags");
+
−    mBoolFlags = (mBoolFlags & ~(1 << name)) | (value << name);
+
−  }
+
−
+
−  void SetBoolFlag(BooleanFlag name) {
+
−    static_assert(BooleanFlagCount <= 8*sizeof(mBoolFlags),
+
−                  "Too many boolean flags");
+
−    mBoolFlags |= (1 << name);
+
−  }
+
−
+
−  void ClearBoolFlag(BooleanFlag name) {
+
−    static_assert(BooleanFlagCount <= 8*sizeof(mBoolFlags),
+
−                  "Too many boolean flags");
+
−    mBoolFlags &= ~(1 << name);
+
−  }
+
−
+
−  bool GetBoolFlag(BooleanFlag name) const {
+
−    static_assert(BooleanFlagCount <= 8*sizeof(mBoolFlags),
+
−                  "Too many boolean flags");
+
−    return mBoolFlags & (1 << name);
+
−  }
+
−
+
−public:
+
−  bool HasRenderingObservers() const
+
−    { return GetBoolFlag(NodeHasRenderingObservers); }
+
−  void SetHasRenderingObservers(bool aValue)
+
−    { SetBoolFlag(NodeHasRenderingObservers, aValue); }
+
−  bool IsContent() const { return GetBoolFlag(NodeIsContent); }
+
−  bool HasID() const { return GetBoolFlag(ElementHasID); }
+
−  bool MayHaveStyle() const { return GetBoolFlag(ElementMayHaveStyle); }
+
−  bool HasName() const { return GetBoolFlag(ElementHasName); }
+
−  bool MayHaveContentEditableAttr() const
+
−    { return GetBoolFlag(ElementMayHaveContentEditableAttr); }
+
−  bool IsCommonAncestorForRangeInSelection() const
+
−    { return GetBoolFlag(NodeIsCommonAncestorForRangeInSelection); }
+
−  void SetCommonAncestorForRangeInSelection()
+
−    { SetBoolFlag(NodeIsCommonAncestorForRangeInSelection); }
+
−  void ClearCommonAncestorForRangeInSelection()
+
−    { ClearBoolFlag(NodeIsCommonAncestorForRangeInSelection); }
+
−  bool IsDescendantOfCommonAncestorForRangeInSelection() const
+
−    { return GetBoolFlag(NodeIsDescendantOfCommonAncestorForRangeInSelection); }
+
−  void SetDescendantOfCommonAncestorForRangeInSelection()
+
−    { SetBoolFlag(NodeIsDescendantOfCommonAncestorForRangeInSelection); }
+
−  void ClearDescendantOfCommonAncestorForRangeInSelection()
+
−    { ClearBoolFlag(NodeIsDescendantOfCommonAncestorForRangeInSelection); }
+
−
+
−  void SetCCMarkedRoot(bool aValue)
+
−    { SetBoolFlag(NodeIsCCMarkedRoot, aValue); }
+
−  bool CCMarkedRoot() const { return GetBoolFlag(NodeIsCCMarkedRoot); }
+
−  void SetInCCBlackTree(bool aValue)
+
−    { SetBoolFlag(NodeIsCCBlackTree, aValue); }
+
−  bool InCCBlackTree() const { return GetBoolFlag(NodeIsCCBlackTree); }
+
−  void SetIsPurpleRoot(bool aValue)
+
−    { SetBoolFlag(NodeIsPurpleRoot, aValue); }
+
−  bool IsPurpleRoot() const { return GetBoolFlag(NodeIsPurpleRoot); }
+
−  bool MayHaveDOMMutationObserver()
+
−    { return GetBoolFlag(NodeMayHaveDOMMutationObserver); }
+
−  void SetMayHaveDOMMutationObserver()
+
−    { SetBoolFlag(NodeMayHaveDOMMutationObserver, true); }
+
−  bool HasListenerManager() { return HasFlag(NODE_HAS_LISTENERMANAGER); }
+
−  bool HasPointerLock() const { return GetBoolFlag(ElementHasPointerLock); }
+
−  void SetPointerLock() { SetBoolFlag(ElementHasPointerLock); }
+
−  void ClearPointerLock() { ClearBoolFlag(ElementHasPointerLock); }
+
−  bool MayHaveAnimations() { return GetBoolFlag(ElementHasAnimations); }
+
−  void SetMayHaveAnimations() { SetBoolFlag(ElementHasAnimations); }
+
−  void SetHasValidDir() { SetBoolFlag(NodeHasValidDirAttribute); }
+
−  void ClearHasValidDir() { ClearBoolFlag(NodeHasValidDirAttribute); }
+
−  bool HasValidDir() const { return GetBoolFlag(NodeHasValidDirAttribute); }
+
−  void SetHasFixedDir() {
+
−    MOZ_ASSERT(NodeType() != nsIDOMNode::TEXT_NODE,
+
−               "SetHasFixedDir on text node");
+
−    SetBoolFlag(NodeHasFixedDir);
+
−  }
+
−  void ClearHasFixedDir() {
+
−    MOZ_ASSERT(NodeType() != nsIDOMNode::TEXT_NODE,
+
−               "ClearHasFixedDir on text node");
+
−    ClearBoolFlag(NodeHasFixedDir);
+
−  }
+
−  bool HasFixedDir() const { return GetBoolFlag(NodeHasFixedDir); }
+
−  void SetHasDirAutoSet() {
+
−    MOZ_ASSERT(NodeType() != nsIDOMNode::TEXT_NODE,
+
−               "SetHasDirAutoSet on text node");
+
−    SetBoolFlag(NodeHasDirAutoSet);
+
−  }
+
−  void ClearHasDirAutoSet() {
+
−    MOZ_ASSERT(NodeType() != nsIDOMNode::TEXT_NODE,
+
−               "ClearHasDirAutoSet on text node");
+
−    ClearBoolFlag(NodeHasDirAutoSet);
+
−  }
+
−  bool HasDirAutoSet() const
+
−    { return GetBoolFlag(NodeHasDirAutoSet); }
+
−  void SetHasTextNodeDirectionalityMap() {
+
−    MOZ_ASSERT(NodeType() == nsIDOMNode::TEXT_NODE,
+
−               "SetHasTextNodeDirectionalityMap on non-text node");
+
−    SetBoolFlag(NodeHasTextNodeDirectionalityMap);
+
−  }
+
−  void ClearHasTextNodeDirectionalityMap() {
+
−    MOZ_ASSERT(NodeType() == nsIDOMNode::TEXT_NODE,
+
−               "ClearHasTextNodeDirectionalityMap on non-text node");
+
−    ClearBoolFlag(NodeHasTextNodeDirectionalityMap);
+
−  }
+
−  bool HasTextNodeDirectionalityMap() const
+
−    { return GetBoolFlag(NodeHasTextNodeDirectionalityMap); }
+
−
+
−  void SetHasDirAuto() { SetBoolFlag(NodeHasDirAuto); }
+
−  void ClearHasDirAuto() { ClearBoolFlag(NodeHasDirAuto); }
+
−  bool HasDirAuto() const { return GetBoolFlag(NodeHasDirAuto); }
+
−
+
−  void SetAncestorHasDirAuto() { SetBoolFlag(NodeAncestorHasDirAuto); }
+
−  void ClearAncestorHasDirAuto() { ClearBoolFlag(NodeAncestorHasDirAuto); }
+
−  bool AncestorHasDirAuto() const { return GetBoolFlag(NodeAncestorHasDirAuto); }
+
−
+
−  bool NodeOrAncestorHasDirAuto() const
+
−    { return HasDirAuto() || AncestorHasDirAuto(); }
+
−
+
−  void SetIsElementInStyleScope(bool aValue) {
+
−    MOZ_ASSERT(IsElement(), "SetIsInStyleScope on a non-Element node");
+
−    SetBoolFlag(ElementIsInStyleScope, aValue);
+
−  }
+
−  void SetIsElementInStyleScope() {
+
−    MOZ_ASSERT(IsElement(), "SetIsInStyleScope on a non-Element node");
+
−    SetBoolFlag(ElementIsInStyleScope);
+
−  }
+
−  void ClearIsElementInStyleScope() {
+
−    MOZ_ASSERT(IsElement(), "ClearIsInStyleScope on a non-Element node");
+
−    ClearBoolFlag(ElementIsInStyleScope);
+
−  }
+
−  bool IsElementInStyleScope() const { return GetBoolFlag(ElementIsInStyleScope); }
+
−
+
−  void SetIsScopedStyleRoot() { SetBoolFlag(ElementIsScopedStyleRoot); }
+
−  void ClearIsScopedStyleRoot() { ClearBoolFlag(ElementIsScopedStyleRoot); }
+
−  bool IsScopedStyleRoot() { return GetBoolFlag(ElementIsScopedStyleRoot); }
+
−  bool HasRelevantHoverRules() const { return GetBoolFlag(NodeHasRelevantHoverRules); }
+
−  void SetHasRelevantHoverRules() { SetBoolFlag(NodeHasRelevantHoverRules); }
+
−  void SetParserHasNotified() { SetBoolFlag(ParserHasNotified); };
+
−  bool HasParserNotified() { return GetBoolFlag(ParserHasNotified); }
+
−
+
−  void SetMayHaveApzAwareListeners() { SetBoolFlag(MayHaveApzAwareListeners); }
+
−  bool NodeMayHaveApzAwareListeners() const
+
−  {
+
−    return GetBoolFlag(MayHaveApzAwareListeners);
+
−  }
+
−protected:
+
−  void SetParentIsContent(bool aValue) { SetBoolFlag(ParentIsContent, aValue); }
+
−  void SetInDocument() { SetBoolFlag(IsInDocument); }
+
−  void SetNodeIsContent() { SetBoolFlag(NodeIsContent); }
+
−  void ClearInDocument() { ClearBoolFlag(IsInDocument); }
+
−  void SetIsElement() { SetBoolFlag(NodeIsElement); }
+
−  void SetHasID() { SetBoolFlag(ElementHasID); }
+
−  void ClearHasID() { ClearBoolFlag(ElementHasID); }
+
−  void SetMayHaveStyle() { SetBoolFlag(ElementMayHaveStyle); }
+
−  void SetHasName() { SetBoolFlag(ElementHasName); }
+
−  void ClearHasName() { ClearBoolFlag(ElementHasName); }
+
−  void SetMayHaveContentEditableAttr()
+
−    { SetBoolFlag(ElementMayHaveContentEditableAttr); }
+
−  bool HasExplicitBaseURI() const { return GetBoolFlag(NodeHasExplicitBaseURI); }
+
−  void SetHasExplicitBaseURI() { SetBoolFlag(NodeHasExplicitBaseURI); }
+
−  void SetHasLockedStyleStates() { SetBoolFlag(ElementHasLockedStyleStates); }
+
−  void ClearHasLockedStyleStates() { ClearBoolFlag(ElementHasLockedStyleStates); }
+
−  bool HasLockedStyleStates() const
+
−    { return GetBoolFlag(ElementHasLockedStyleStates); }
+
−  void SetHasWeirdParserInsertionMode() { SetBoolFlag(ElementHasWeirdParserInsertionMode); }
+
−  bool HasWeirdParserInsertionMode() const
+
−  { return GetBoolFlag(ElementHasWeirdParserInsertionMode); }
+
−  bool HandlingClick() const { return GetBoolFlag(NodeHandlingClick); }
+
−  void SetHandlingClick() { SetBoolFlag(NodeHandlingClick); }
+
−  void ClearHandlingClick() { ClearBoolFlag(NodeHandlingClick); }
+
−
+
−  void SetSubtreeRootPointer(nsINode* aSubtreeRoot)
+
−  {
+
−    NS_ASSERTION(aSubtreeRoot, "aSubtreeRoot can never be null!");
+
−    NS_ASSERTION(!(IsNodeOfType(eCONTENT) && IsInDoc()) &&
+
−                 !IsInShadowTree(), "Shouldn't be here!");
+
−    mSubtreeRoot = aSubtreeRoot;
+
−  }
+
−
+
−  void ClearSubtreeRootPointer()
+
−  {
+
−    mSubtreeRoot = nullptr;
+
−  }
+
−
+
−public:
+
−  // Makes nsINode object to keep aObject alive.
+
−  void BindObject(nsISupports* aObject);
+
−  // After calling UnbindObject nsINode object doesn't keep
+
−  // aObject alive anymore.
+
−  void UnbindObject(nsISupports* aObject);
+
−
+
−  void GetBoundMutationObservers(nsTArray<RefPtr<nsDOMMutationObserver> >& aResult);
+
−
+
−  /**
+
−   * Returns the length of this node, as specified at
+
−   * <http://dvcs.w3.org/hg/domcore/raw-file/tip/Overview.html#concept-node-length>
+
−   */
+
−  uint32_t Length() const;
+
−
+
−  void GetNodeName(mozilla::dom::DOMString& aNodeName)
+
−  {
+
−    const nsString& nodeName = NodeName();
+
−    aNodeName.SetStringBuffer(nsStringBuffer::FromString(nodeName),
+
−                              nodeName.Length());
+
−  }
+
−  void GetBaseURI(nsAString& aBaseURI) const;
+
−  // Return the base URI for the document.
+
−  // The returned value may differ if the document is loaded via XHR, and
+
−  // when accessed from chrome privileged script and
+
−  // from content privileged script for compatibility.
+
−  void GetBaseURIFromJS(nsAString& aBaseURI) const;
+
−  bool HasChildNodes() const
+
−  {
+
−    return HasChildren();
+
−  }
+
−  uint16_t CompareDocumentPosition(nsINode& aOther) const;
+
−  void GetNodeValue(nsAString& aNodeValue)
+
−  {
+
−    GetNodeValueInternal(aNodeValue);
+
−  }
+
−  void SetNodeValue(const nsAString& aNodeValue,
+
−                    mozilla::ErrorResult& aError)
+
−  {
+
−    SetNodeValueInternal(aNodeValue, aError);
+
−  }
+
−  virtual void GetNodeValueInternal(nsAString& aNodeValue);
+
−  virtual void SetNodeValueInternal(const nsAString& aNodeValue,
+
−                                    mozilla::ErrorResult& aError)
+
−  {
+
−    // The DOM spec says that when nodeValue is defined to be null "setting it
+
−    // has no effect", so we don't throw an exception.
+
−  }
+
−  void EnsurePreInsertionValidity(nsINode& aNewChild, nsINode* aRefChild,
+
−                                  mozilla::ErrorResult& aError);
+
−  nsINode* InsertBefore(nsINode& aNode, nsINode* aChild,
+
−                        mozilla::ErrorResult& aError)
+
−  {
+
−    return ReplaceOrInsertBefore(false, &aNode, aChild, aError);
+
−  }
+
−  nsINode* AppendChild(nsINode& aNode, mozilla::ErrorResult& aError)
+
−  {
+
−    return InsertBefore(aNode, nullptr, aError);
+
−  }
+
−  nsINode* ReplaceChild(nsINode& aNode, nsINode& aChild,
+
−                        mozilla::ErrorResult& aError)
+
−  {
+
−    return ReplaceOrInsertBefore(true, &aNode, &aChild, aError);
+
−  }
+
−  nsINode* RemoveChild(nsINode& aChild, mozilla::ErrorResult& aError);
+
−  already_AddRefed<nsINode> CloneNode(bool aDeep, mozilla::ErrorResult& aError);
+
−  bool IsEqualNode(nsINode* aNode);
+
−  void GetNamespaceURI(nsAString& aNamespaceURI) const
+
−  {
+
−    mNodeInfo->GetNamespaceURI(aNamespaceURI);
+
−  }
+
−#ifdef MOZILLA_INTERNAL_API
+
−  void GetPrefix(nsAString& aPrefix)
+
−  {
+
−    mNodeInfo->GetPrefix(aPrefix);
+
−  }
+
−#endif
+
−  void GetLocalName(mozilla::dom::DOMString& aLocalName) const
+
−  {
+
−    const nsString& localName = LocalName();
+
−    if (localName.IsVoid()) {
+
−      aLocalName.SetNull();
+
−    } else {
+
−      aLocalName.SetStringBuffer(nsStringBuffer::FromString(localName),
+
−                                 localName.Length());
+
−    }
+
−  }
+
−
+
−  nsDOMAttributeMap* GetAttributes();
+
−  void SetUserData(JSContext* aCx, const nsAString& aKey,
+
−                   JS::Handle<JS::Value> aData,
+
−                   JS::MutableHandle<JS::Value> aRetval,
+
−                   mozilla::ErrorResult& aError);
+
−  void GetUserData(JSContext* aCx, const nsAString& aKey,
+
−                   JS::MutableHandle<JS::Value> aRetval,
+
−                   mozilla::ErrorResult& aError);
+
−
+
−  // Helper method to remove this node from its parent. This is not exposed
+
−  // through WebIDL.
+
−  // Only call this if the node has a parent node.
+
−  nsresult RemoveFromParent()
+
−  {
+
−    nsINode* parent = GetParentNode();
+
−    mozilla::ErrorResult rv;
+
−    parent->RemoveChild(*this, rv);
+
−    return rv.StealNSResult();
+
−  }
+
−
+
−  // ChildNode methods
+
−  mozilla::dom::Element* GetPreviousElementSibling() const;
+
−  mozilla::dom::Element* GetNextElementSibling() const;
+
−  /**
+
−   * Remove this node from its parent, if any.
+
−   */
+
−  void Remove();
+
−
+
−  // ParentNode methods
+
−  mozilla::dom::Element* GetFirstElementChild() const;
+
−  mozilla::dom::Element* GetLastElementChild() const;
+
−
+
−  void GetBoxQuads(const BoxQuadOptions& aOptions,
+
−                   nsTArray<RefPtr<DOMQuad> >& aResult,
+
−                   mozilla::ErrorResult& aRv);
+
−
+
−  already_AddRefed<DOMQuad> ConvertQuadFromNode(DOMQuad& aQuad,
+
−                                                const TextOrElementOrDocument& aFrom,
+
−                                                const ConvertCoordinateOptions& aOptions,
+
−                                                ErrorResult& aRv);
+
−  already_AddRefed<DOMQuad> ConvertRectFromNode(DOMRectReadOnly& aRect,
+
−                                                const TextOrElementOrDocument& aFrom,
+
−                                                const ConvertCoordinateOptions& aOptions,
+
−                                                ErrorResult& aRv);
+
−  already_AddRefed<DOMPoint> ConvertPointFromNode(const DOMPointInit& aPoint,
+
−                                                  const TextOrElementOrDocument& aFrom,
+
−                                                  const ConvertCoordinateOptions& aOptions,
+
−                                                  ErrorResult& aRv);
+
−
+
−protected:
+
−
+
−  // Override this function to create a custom slots class.
+
−  // Must not return null.
+
−  virtual nsINode::nsSlots* CreateSlots();
+
−
+
−  bool HasSlots() const
+
−  {
+
−    return mSlots != nullptr;
+
−  }
+
−
+
−  nsSlots* GetExistingSlots() const
+
−  {
+
−    return mSlots;
+
−  }
+
−
+
−  nsSlots* Slots()
+
−  {
+
−    if (!HasSlots()) {
+
−      mSlots = CreateSlots();
+
−      MOZ_ASSERT(mSlots);
+
−    }
+
−    return GetExistingSlots();
+
−  }
+
−
+
−  nsTObserverArray<nsIMutationObserver*> *GetMutationObservers()
+
−  {
+
−    return HasSlots() ? &GetExistingSlots()->mMutationObservers : nullptr;
+
−  }
+
−
+
−  bool IsEditableInternal() const;
+
−  virtual bool IsEditableExternal() const
+
−  {
+
−    return IsEditableInternal();
+
−  }
+
−
+
−  virtual void GetTextContentInternal(nsAString& aTextContent,
+
−                                      mozilla::ErrorResult& aError);
+
−  virtual void SetTextContentInternal(const nsAString& aTextContent,
+
−                                      mozilla::ErrorResult& aError)
+
−  {
+
−  }
+
−
+
−#ifdef DEBUG
+
−  // Note: virtual so that IsInNativeAnonymousSubtree can be called accross
+
−  // module boundaries.
+
−  virtual void CheckNotNativeAnonymous() const;
+
−#endif
+
−
+
−  // These are just used to implement nsIDOMNode using
+
−  // NS_FORWARD_NSIDOMNODE_TO_NSINODE_HELPER and for quickstubs.
+
−  nsresult GetParentNode(nsIDOMNode** aParentNode);
+
−  nsresult GetParentElement(nsIDOMElement** aParentElement);
+
−  nsresult GetChildNodes(nsIDOMNodeList** aChildNodes);
+
−  nsresult GetFirstChild(nsIDOMNode** aFirstChild);
+
−  nsresult GetLastChild(nsIDOMNode** aLastChild);
+
−  nsresult GetPreviousSibling(nsIDOMNode** aPrevSibling);
+
−  nsresult GetNextSibling(nsIDOMNode** aNextSibling);
+
−  nsresult GetOwnerDocument(nsIDOMDocument** aOwnerDocument);
+
−  nsresult CompareDocumentPosition(nsIDOMNode* aOther,
+
−                                   uint16_t* aReturn);
+
−
+
−  void EnsurePreInsertionValidity1(nsINode& aNewChild, nsINode* aRefChild,
+
−                                   mozilla::ErrorResult& aError);
+
−  void EnsurePreInsertionValidity2(bool aReplace, nsINode& aNewChild,
+
−                                   nsINode* aRefChild,
+
−                                   mozilla::ErrorResult& aError);
+
−  nsresult ReplaceOrInsertBefore(bool aReplace, nsIDOMNode *aNewChild,
+
−                                 nsIDOMNode *aRefChild, nsIDOMNode **aReturn);
+
−  nsINode* ReplaceOrInsertBefore(bool aReplace, nsINode* aNewChild,
+
−                                 nsINode* aRefChild,
+
−                                 mozilla::ErrorResult& aError);
+
−  nsresult RemoveChild(nsIDOMNode* aOldChild, nsIDOMNode** aReturn);
+
−
+
−  /**
+
−   * Returns the Element that should be used for resolving namespaces
+
−   * on this node (ie the ownerElement for attributes, the documentElement for
+
−   * documents, the node itself for elements and for other nodes the parentNode
+
−   * if it is an element).
+
−   */
+
−  virtual mozilla::dom::Element* GetNameSpaceElement() = 0;
+
−
+
−  /**
+
−   * Most of the implementation of the nsINode RemoveChildAt method.
+
−   * Should only be called on document, element, and document fragment
+
−   * nodes.  The aChildArray passed in should be the one for |this|.
+
−   *
+
−   * @param aIndex The index to remove at.
+
−   * @param aNotify Whether to notify.
+
−   * @param aKid The kid at aIndex.  Must not be null.
+
−   * @param aChildArray The child array to work with.
+
−   * @param aMutationEvent whether to fire a mutation event for this removal.
+
−   */
+
−  void doRemoveChildAt(uint32_t aIndex, bool aNotify, nsIContent* aKid,
+
−                       nsAttrAndChildArray& aChildArray);
+
−
+
−  /**
+
−   * Most of the implementation of the nsINode InsertChildAt method.
+
−   * Should only be called on document, element, and document fragment
+
−   * nodes.  The aChildArray passed in should be the one for |this|.
+
−   *
+
−   * @param aKid The child to insert.
+
−   * @param aIndex The index to insert at.
+
−   * @param aNotify Whether to notify.
+
−   * @param aChildArray The child array to work with
+
−   */
+
−  nsresult doInsertChildAt(nsIContent* aKid, uint32_t aIndex,
+
−                           bool aNotify, nsAttrAndChildArray& aChildArray);
+
−
+
−  /**
+
−   * Parse the given selector string into an nsCSSSelectorList.
+
−   *
+
−   * A null return value with a non-failing aRv means the string only
+
−   * contained pseudo-element selectors.
+
−   *
+
−   * A failing aRv means the string was not a valid selector.
+
−   */
+
−  nsCSSSelectorList* ParseSelectorList(const nsAString& aSelectorString,
+
−                                       mozilla::ErrorResult& aRv);
+
−
+
−public:
+
−  /* Event stuff that documents and elements share.  This needs to be
+
−     NS_IMETHOD because some subclasses implement DOM methods with
+
−     this exact name and signature and then the calling convention
+
−     needs to match.
+
−
+
−     Note that we include DOCUMENT_ONLY_EVENT events here so that we
+
−     can forward all the document stuff to this implementation.
+
−  */
+
−#define EVENT(name_, id_, type_, struct_)                             \
+
−  mozilla::dom::EventHandlerNonNull* GetOn##name_();                  \
+
−  void SetOn##name_(mozilla::dom::EventHandlerNonNull* listener);
+
−#define TOUCH_EVENT EVENT
+
−#define DOCUMENT_ONLY_EVENT EVENT
+
−#include "mozilla/EventNameList.h"
+
−#undef DOCUMENT_ONLY_EVENT
+
−#undef TOUCH_EVENT
+
−#undef EVENT
+
−
+
−protected:
+
−  static bool Traverse(nsINode *tmp, nsCycleCollectionTraversalCallback &cb);
+
−  static void Unlink(nsINode *tmp);
+
−
+
−  RefPtr<mozilla::dom::NodeInfo> mNodeInfo;
+
−
+
−  // mParent is an owning ref most of the time, except for the case of document
+
−  // nodes, so it cannot be represented by nsCOMPtr, so mark is as
+
−  // MOZ_OWNING_REF.
+
−  nsINode* MOZ_OWNING_REF mParent;
+
−
+
−private:
+
−  // Boolean flags.
+
−  uint32_t mBoolFlags;
+
−
+
−protected:
+
−  // These references are non-owning and safe, as they are managed by
+
−  // nsAttrAndChildArray.
+
−  nsIContent* MOZ_NON_OWNING_REF mNextSibling;
+
−  nsIContent* MOZ_NON_OWNING_REF mPreviousSibling;
+
−  // This reference is non-owning and safe, since in the case of documents,
+
−  // it is set to null when the document gets destroyed, and in the case of
+
−  // other nodes, the children keep the parents alive.
+
−  nsIContent* MOZ_NON_OWNING_REF mFirstChild;
+
−
+
−  union {
+
−    // Pointer to our primary frame.  Might be null.
+
−    nsIFrame* mPrimaryFrame;
+
−
+
−    // Pointer to the root of our subtree.  Might be null.
+
−    // This reference is non-owning and safe, since it either points to the
+
−    // object itself, or is reset by ClearSubtreeRootPointer.
+
−    nsINode* MOZ_NON_OWNING_REF mSubtreeRoot;
+
−  };
+
−
+
−  // Storage for more members that are usually not needed; allocated lazily.
+
−  nsSlots* mSlots;
+
−};
+
−
+
−inline nsIDOMNode* GetAsDOMNode(nsINode* aNode)
+
−{
+
−  return aNode ? aNode->AsDOMNode() : nullptr;
+
−}
+
−
+
−// Useful inline function for getting a node given an nsIContent and an
+
−// nsIDocument.  Returns the first argument cast to nsINode if it is non-null,
+
−// otherwise returns the second (which may be null).  We use type variables
+
−// instead of nsIContent* and nsIDocument* because the actual types must be
+
−// known for the cast to work.
+
−template<class C, class D>
+
−inline nsINode* NODE_FROM(C& aContent, D& aDocument)
+
−{
+
−  if (aContent)
+
−    return static_cast<nsINode*>(aContent);
+
−  return static_cast<nsINode*>(aDocument);
+
−}
+
−
+
−NS_DEFINE_STATIC_IID_ACCESSOR(nsINode, NS_INODE_IID)
+
−
+
−inline nsISupports*
+
−ToSupports(nsINode* aPointer)
+
−{
+
−  return aPointer;
+
−}
+
−
+
−inline nsISupports*
+
−ToCanonicalSupports(nsINode* aPointer)
+
−{
+
−  return aPointer;
+
−}
+
−
+
−#define NS_FORWARD_NSIDOMNODE_TO_NSINODE_HELPER(...) \
+
−  NS_IMETHOD GetNodeName(nsAString& aNodeName) __VA_ARGS__ override \
+
−  { \
+
−    aNodeName = nsINode::NodeName(); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD GetNodeValue(nsAString& aNodeValue) __VA_ARGS__ override \
+
−  { \
+
−    nsINode::GetNodeValue(aNodeValue); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD SetNodeValue(const nsAString& aNodeValue) __VA_ARGS__ override \
+
−  { \
+
−    mozilla::ErrorResult rv; \
+
−    nsINode::SetNodeValue(aNodeValue, rv); \
+
−    return rv.StealNSResult(); \
+
−  } \
+
−  NS_IMETHOD GetNodeType(uint16_t* aNodeType) __VA_ARGS__ override \
+
−  { \
+
−    *aNodeType = nsINode::NodeType(); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD GetParentNode(nsIDOMNode** aParentNode) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetParentNode(aParentNode); \
+
−  } \
+
−  NS_IMETHOD GetParentElement(nsIDOMElement** aParentElement) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetParentElement(aParentElement); \
+
−  } \
+
−  NS_IMETHOD GetChildNodes(nsIDOMNodeList** aChildNodes) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetChildNodes(aChildNodes); \
+
−  } \
+
−  NS_IMETHOD GetFirstChild(nsIDOMNode** aFirstChild) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetFirstChild(aFirstChild); \
+
−  } \
+
−  NS_IMETHOD GetLastChild(nsIDOMNode** aLastChild) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetLastChild(aLastChild); \
+
−  } \
+
−  NS_IMETHOD GetPreviousSibling(nsIDOMNode** aPreviousSibling) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetPreviousSibling(aPreviousSibling); \
+
−  } \
+
−  NS_IMETHOD GetNextSibling(nsIDOMNode** aNextSibling) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetNextSibling(aNextSibling); \
+
−  } \
+
−  NS_IMETHOD GetOwnerDocument(nsIDOMDocument** aOwnerDocument) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetOwnerDocument(aOwnerDocument); \
+
−  } \
+
−  NS_IMETHOD InsertBefore(nsIDOMNode* aNewChild, nsIDOMNode* aRefChild, nsIDOMNode** aResult) __VA_ARGS__ override \
+
−  { \
+
−    return ReplaceOrInsertBefore(false, aNewChild, aRefChild, aResult); \
+
−  } \
+
−  NS_IMETHOD ReplaceChild(nsIDOMNode* aNewChild, nsIDOMNode* aOldChild, nsIDOMNode** aResult) __VA_ARGS__ override \
+
−  { \
+
−    return ReplaceOrInsertBefore(true, aNewChild, aOldChild, aResult); \
+
−  } \
+
−  NS_IMETHOD RemoveChild(nsIDOMNode* aOldChild, nsIDOMNode** aResult) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::RemoveChild(aOldChild, aResult); \
+
−  } \
+
−  NS_IMETHOD AppendChild(nsIDOMNode* aNewChild, nsIDOMNode** aResult) __VA_ARGS__ override \
+
−  { \
+
−    return InsertBefore(aNewChild, nullptr, aResult); \
+
−  } \
+
−  NS_IMETHOD HasChildNodes(bool* aResult) __VA_ARGS__ override \
+
−  { \
+
−    *aResult = nsINode::HasChildNodes(); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD CloneNode(bool aDeep, uint8_t aArgc, nsIDOMNode** aResult) __VA_ARGS__ override \
+
−  { \
+
−    if (aArgc == 0) { \
+
−      aDeep = true; \
+
−    } \
+
−    mozilla::ErrorResult rv; \
+
−    nsCOMPtr<nsINode> clone = nsINode::CloneNode(aDeep, rv); \
+
−    if (rv.Failed()) { \
+
−      return rv.StealNSResult(); \
+
−    } \
+
−    *aResult = clone.forget().take()->AsDOMNode(); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD Normalize() __VA_ARGS__ override \
+
−  { \
+
−    nsINode::Normalize(); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD GetNamespaceURI(nsAString& aNamespaceURI) __VA_ARGS__ override \
+
−  { \
+
−    nsINode::GetNamespaceURI(aNamespaceURI); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD GetPrefix(nsAString& aPrefix) __VA_ARGS__ override \
+
−  { \
+
−    nsINode::GetPrefix(aPrefix); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD GetLocalName(nsAString& aLocalName) __VA_ARGS__ override \
+
−  { \
+
−    aLocalName = nsINode::LocalName(); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD UnusedPlaceholder(bool* aResult) __VA_ARGS__ override \
+
−  { \
+
−    *aResult = false; \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD GetDOMBaseURI(nsAString& aBaseURI) __VA_ARGS__ override \
+
−  { \
+
−    nsINode::GetBaseURI(aBaseURI); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD CompareDocumentPosition(nsIDOMNode* aOther, uint16_t* aResult) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::CompareDocumentPosition(aOther, aResult); \
+
−  } \
+
−  NS_IMETHOD GetTextContent(nsAString& aTextContent) __VA_ARGS__ override \
+
−  { \
+
−    mozilla::ErrorResult rv; \
+
−    nsINode::GetTextContent(aTextContent, rv); \
+
−    return rv.StealNSResult(); \
+
−  } \
+
−  NS_IMETHOD SetTextContent(const nsAString& aTextContent) __VA_ARGS__ override \
+
−  { \
+
−    mozilla::ErrorResult rv; \
+
−    nsINode::SetTextContent(aTextContent, rv); \
+
−    return rv.StealNSResult(); \
+
−  } \
+
−  NS_IMETHOD LookupPrefix(const nsAString& aNamespaceURI, nsAString& aResult) __VA_ARGS__ override \
+
−  { \
+
−    nsINode::LookupPrefix(aNamespaceURI, aResult); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD IsDefaultNamespace(const nsAString& aNamespaceURI, bool* aResult) __VA_ARGS__ override \
+
−  { \
+
−    *aResult = nsINode::IsDefaultNamespace(aNamespaceURI); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD LookupNamespaceURI(const nsAString& aPrefix, nsAString& aResult) __VA_ARGS__ override \
+
−  { \
+
−    nsINode::LookupNamespaceURI(aPrefix, aResult); \
+
−    return NS_OK; \
+
−  } \
+
−  NS_IMETHOD IsEqualNode(nsIDOMNode* aArg, bool* aResult) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::IsEqualNode(aArg, aResult); \
+
−  } \
+
−  NS_IMETHOD SetUserData(const nsAString& aKey, nsIVariant* aData, nsIVariant** aResult) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::SetUserData(aKey, aData, aResult); \
+
−  } \
+
−  NS_IMETHOD GetUserData(const nsAString& aKey, nsIVariant** aResult) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::GetUserData(aKey, aResult); \
+
−  } \
+
−  NS_IMETHOD Contains(nsIDOMNode* aOther, bool* aResult) __VA_ARGS__ override \
+
−  { \
+
−    return nsINode::Contains(aOther, aResult); \
+
−  }
+
−
+
−#define NS_FORWARD_NSIDOMNODE_TO_NSINODE \
+
−  NS_FORWARD_NSIDOMNODE_TO_NSINODE_HELPER(final)
+
−
+
−#define NS_FORWARD_NSIDOMNODE_TO_NSINODE_OVERRIDABLE \
+
−  NS_FORWARD_NSIDOMNODE_TO_NSINODE_HELPER()
+
−
+
−#endif /* nsINode_h___ */