зеркало из https://github.com/mozilla/gecko-dev.git
69 строки
2.2 KiB
C++
69 строки
2.2 KiB
C++
/* -*- 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();
|
|
|
|
nsresult SetCurrentNode(nsINode* aCurrentNode, nsINodeList* aSiblings);
|
|
|
|
protected:
|
|
virtual ~inDeepTreeWalker();
|
|
|
|
already_AddRefed<nsINode> GetParent();
|
|
nsresult EdgeChild(nsINode** _retval, bool aReverse);
|
|
|
|
bool mShowAnonymousContent;
|
|
bool mShowSubDocuments;
|
|
bool mShowDocumentsAsNodes;
|
|
|
|
// 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
|
|
// But if mCurrentNode is a (sub) document then instead of
|
|
// storing a list that has only one element (the document)
|
|
// and setting mCurrentIndex to null, we set mSibilings to null.
|
|
// The reason for this is purely technical, since nsINodeList is
|
|
// nsIContent based hence we cannot use it to store a document node.
|
|
nsCOMPtr<nsINodeList> mSiblings;
|
|
|
|
// Index of mCurrentNode in the mSiblings list.
|
|
int32_t mCurrentIndex;
|
|
|
|
// Currently unused. Should be a filter for nodes.
|
|
uint32_t mWhatToShow;
|
|
};
|
|
|
|
// {BFCB82C2-5611-4318-90D6-BAF4A7864252}
|
|
#define IN_DEEPTREEWALKER_CID \
|
|
{ \
|
|
0xbfcb82c2, 0x5611, 0x4318, { \
|
|
0x90, 0xd6, 0xba, 0xf4, 0xa7, 0x86, 0x42, 0x52 \
|
|
} \
|
|
}
|
|
|
|
#endif // __inDeepTreeWalker_h___
|