/* -*- 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/. */

/*

 * Implementation of DOM Core's Attr node.

 */

#ifndef mozilla_dom_Attr_h

#define mozilla_dom_Attr_h

#include "mozilla/Attributes.h"

#include "nsINode.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 nsINode

{

  virtual ~Attr() {}

public:

  Attr(nsDOMAttributeMap* aAttrMap,

       already_AddRefed<dom::NodeInfo>&& aNodeInfo,

       const nsAString& aValue);

  NS_DECL_CYCLE_COLLECTING_ISUPPORTS

  NS_IMPL_FROMNODE_HELPER(Attr, IsAttr())

  // 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;

  void ConstructUbiNode(void* storage) override;

  nsDOMAttributeMap* GetMap()

  {

    return mAttrMap;

  }

  void SetMap(nsDOMAttributeMap *aMap);

  Element* GetElement() const;

  /**

   * Called when our ownerElement is moved into a new document.

   * Updates the nodeinfo of this node.

   */

  nsresult SetOwnerDocument(nsIDocument* aDocument);

  // nsINode interface

  virtual bool IsNodeOfType(uint32_t aFlags) const override;

  virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;

  virtual already_AddRefed<nsIURI> GetBaseURI(bool aTryUseXHRDocBaseURI = false) const override;

  static void Initialize();

  static void Shutdown();

  NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS(Attr)

  // 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);

protected:

  virtual Element* GetNameSpaceElement() override

  {

    return GetElement();

  }

  static bool sInitialized;

private:

  RefPtr<nsDOMAttributeMap> mAttrMap;

  nsString mValue;

};

} // namespace dom

} // namespace mozilla

#endif /* mozilla_dom_Attr_h */