gecko-dev/dom/base/nsTextNode.h

/* -*- 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 nsTextNode_h
#define nsTextNode_h

/*
 * Implementation of DOM Core's nsIDOMText node.
 */

#include "mozilla/Attributes.h"
#include "mozilla/dom/Text.h"
#include "nsIDOMText.h"
#include "nsDebug.h"

class nsNodeInfoManager;

/**
 * Class used to implement DOM text nodes
 */
class nsTextNode : public mozilla::dom::Text,
                   public nsIDOMText
{
private:
  void Init()
  {
    MOZ_ASSERT(mNodeInfo->NodeType() == TEXT_NODE,
               "Bad NodeType in aNodeInfo");
  }

public:
  explicit nsTextNode(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
    : mozilla::dom::Text(aNodeInfo)
  {
    Init();
  }

  explicit nsTextNode(nsNodeInfoManager* aNodeInfoManager)
    : mozilla::dom::Text(aNodeInfoManager->GetTextNodeInfo())
  {
    Init();
  }

  // nsISupports
  NS_DECL_ISUPPORTS_INHERITED

  // nsIDOMCharacterData
  NS_FORWARD_NSIDOMCHARACTERDATA(nsGenericDOMDataNode::)
  using nsGenericDOMDataNode::SetData; // Prevent hiding overloaded virtual function.

  // nsIDOMText
  NS_FORWARD_NSIDOMTEXT(nsGenericDOMDataNode::)

  // nsINode
  virtual bool IsNodeOfType(uint32_t aFlags) const override;

  virtual nsGenericDOMDataNode* CloneDataNode(mozilla::dom::NodeInfo *aNodeInfo,
                                              bool aCloneText) const override;

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

  nsresult AppendTextForNormalize(const char16_t* aBuffer, uint32_t aLength,
                                  bool aNotify, nsIContent* aNextSibling);

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

  // Need to have a copy here because including nsDocument.h in this file will
  // fail to build on Windows.
  static bool IsShadowDOMEnabled(JSContext* aCx, JSObject* aObject);

#ifdef DEBUG
  virtual void List(FILE* out, int32_t aIndent) const override;
  virtual void DumpContent(FILE* out, int32_t aIndent, bool aDumpAll) const override;
#endif

protected:
  virtual ~nsTextNode();

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

#endif // nsTextNode_h