txNodeSetContext.h

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* 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 __TX_XPATH_SET_CONTEXT

#define __TX_XPATH_SET_CONTEXT

#include "txIXPathContext.h"

#include "txNodeSet.h"

class txNodeSetContext : public txIEvalContext {

 public:

  txNodeSetContext(txNodeSet* aContextNodeSet, txIMatchContext* aContext)

      : mContextSet(aContextNodeSet), mPosition(0), mInner(aContext) {}

  // Iteration over the given NodeSet

  bool hasNext() { return mPosition < size(); }

  void next() {

    NS_ASSERTION(mPosition < size(), "Out of bounds.");

    mPosition++;

  void setPosition(uint32_t aPosition) {

    NS_ASSERTION(aPosition > 0 && aPosition <= size(), "Out of bounds.");

    mPosition = aPosition;

  TX_DECL_EVAL_CONTEXT;

 protected:

  RefPtr<txNodeSet> mContextSet;

  uint32_t mPosition;

  txIMatchContext* mInner;

};

#endif  // __TX_XPATH_SET_CONTEXT