inDeepTreeWalker.h

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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/. */

#ifndef __inDeepTreeWalker_h___

#define __inDeepTreeWalker_h___

#include "inIDeepTreeWalker.h"

#include "nsCOMPtr.h"

#include "nsINode.h"

#include "nsTArray.h"

class nsINodeList;

class inDeepTreeWalker final : public inIDeepTreeWalker {

 public:

  NS_DECL_ISUPPORTS

  NS_DECL_INIDEEPTREEWALKER

  inDeepTreeWalker();

  using ChildList = AutoTArray<RefPtr<nsINode>, 8>;

  void GetChildren(nsINode& aParent, ChildList&);

 protected:

  virtual ~inDeepTreeWalker();

  already_AddRefed<nsINode> GetParent();

  nsresult EdgeChild(nsINode** _retval, bool aReverse);

  bool mShowAnonymousContent = false;

  bool mShowSubDocuments = false;

  bool mShowDocumentsAsNodes = false;

  // The root node. previousNode and parentNode will return

  // null from here.

  nsCOMPtr<nsINode> mRoot;

  nsCOMPtr<nsINode> mCurrentNode;

  // We cache the siblings of mCurrentNode as a list of nodes.

  // Notes: normally siblings are all the children of the parent

  // of mCurrentNode (that are interesting for use for the walk)

  // and mCurrentIndex is the index of mCurrentNode in that list

  ChildList mSiblings;

  // Index of mCurrentNode in the mSiblings list.

  int32_t mCurrentIndex = -1;

};

// {BFCB82C2-5611-4318-90D6-BAF4A7864252}

#define IN_DEEPTREEWALKER_CID                        \

  {                                                  \

    0xbfcb82c2, 0x5611, 0x4318, {                    \

      0x90, 0xd6, 0xba, 0xf4, 0xa7, 0x86, 0x42, 0x52 \

    }                                                \

#endif  // __inDeepTreeWalker_h___