author Dylan Roeh <>
Tue, 28 Aug 2018 11:35:46 -0500
changeset 481113 31683bdf39d7bcacf8d9bf265fc2365024473fbe
parent 479698 3395984ed40ce4a53e1621fcbeda606ea2c5cb62
child 484189 b3901250891c015fd3506d1f6f96843c58f42d3a
permissions -rw-r--r--
Bug 1485178 - Only migrate sharedprefs when in Fennec. r=snorp a=ritu

/* -*- 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 */

 * Implementation of DOM Core's Attr node.

#ifndef mozilla_dom_Attr_h
#define mozilla_dom_Attr_h

#include "mozilla/Attributes.h"
#include "nsIAttribute.h"
#include "nsString.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
#include "nsStubMutationObserver.h"

class nsIDocument;

namespace mozilla {
class EventChainPreVisitor;
namespace dom {

// Attribute helper class used to wrap up an attribute with a dom
// object that implements the DOM Attr interface.
class Attr final : public nsIAttribute
  virtual ~Attr() {}

  Attr(nsDOMAttributeMap* aAttrMap,
       already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
       const nsAString& aValue);



  // nsINode interface
  virtual void GetTextContentInternal(nsAString& aTextContent,
                                      OOMReporter& aError) override;
  virtual void SetTextContentInternal(const nsAString& aTextContent,
                                      nsIPrincipal* aSubjectPrincipal,
                                      ErrorResult& aError) override;
  virtual void GetNodeValueInternal(nsAString& aNodeValue) override;
  virtual void SetNodeValueInternal(const nsAString& aNodeValue,
                                    ErrorResult& aError) override;

  void GetEventTargetParent(EventChainPreVisitor& aVisitor) override;

  // nsIAttribute interface
  void SetMap(nsDOMAttributeMap *aMap) override;
  Element* GetElement() const;
  nsresult SetOwnerDocument(nsIDocument* aDocument) override;

  // nsINode interface
  virtual bool IsNodeOfType(uint32_t aFlags) const override;
  virtual uint32_t GetChildCount() const override;
  virtual nsIContent *GetChildAt_Deprecated(uint32_t aIndex) const override;
  virtual int32_t ComputeIndexOf(const nsINode* aPossibleChild) const override;
  virtual nsresult InsertChildBefore(nsIContent* aKid, nsIContent* aBeforeThis,
                                     bool aNotify) override;
  virtual void RemoveChildNode(nsIContent* aKid, bool aNotify) override;
  virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
                         bool aPreallocateChildren) const override;
  virtual already_AddRefed<nsIURI> GetBaseURI(bool aTryUseXHRDocBaseURI = false) const override;

  static void Initialize();
  static void Shutdown();


  // WebIDL
  virtual JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;

  void GetName(nsAString& aName);
  void GetValue(nsAString& aValue);

  void SetValue(const nsAString& aValue, nsIPrincipal* aTriggeringPrincipal, ErrorResult& aRv);
  void SetValue(const nsAString& aValue, ErrorResult& aRv);

  bool Specified() const;

  // XPCOM GetNamespaceURI() is OK
  // XPCOM GetPrefix() is OK
  // XPCOM GetLocalName() is OK

  Element* GetOwnerElement(ErrorResult& aRv);

  virtual Element* GetNameSpaceElement() override
    return GetElement();

  static bool sInitialized;

  nsString mValue;

} // namespace dom
} // namespace mozilla

#endif /* mozilla_dom_Attr_h */