Attr.h - mozsearch

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/* -*- 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 "nsDOMAttributeMap.h"

#include "nsINode.h"

#include "nsString.h"

#include "nsCOMPtr.h"

#include "nsCycleCollectionParticipant.h"

#include "nsStubMutationObserver.h"

namespace mozilla {

class EventChainPreVisitor;

namespace dom {

class Document;

// 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() = default;

 public:

  Attr(nsDOMAttributeMap* aAttrMap, already_AddRefed<dom::NodeInfo>&& aNodeInfo,

       const nsAString& aValue);

  NS_DECL_ISUPPORTS_INHERITED

  NS_IMETHOD_(void) DeleteCycleCollectable(void) final;

  NS_DECL_DOMARENA_DESTROY

  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(Document* aDocument);

  // nsINode interface

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

  nsIURI* GetBaseURI(bool aTryUseXHRDocBaseURI = false) const override;

  static void Initialize();

  static void Shutdown();

  NS_DECL_CYCLE_COLLECTION_SKIPPABLE_WRAPPERCACHE_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();

 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 */