Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #ifndef __TX_XPATH_SET_CONTEXT
       7             : #define __TX_XPATH_SET_CONTEXT
       8             : 
       9             : #include "txIXPathContext.h"
      10             : #include "txNodeSet.h"
      11             : #include "nsAutoPtr.h"
      12             : 
      13           0 : class txNodeSetContext : public txIEvalContext
      14             : {
      15             : public:
      16           0 :     txNodeSetContext(txNodeSet* aContextNodeSet, txIMatchContext* aContext)
      17           0 :         : mContextSet(aContextNodeSet), mPosition(0), mInner(aContext)
      18             :     {
      19           0 :     }
      20             : 
      21             :     // Iteration over the given NodeSet
      22           0 :     bool hasNext()
      23             :     {
      24           0 :         return mPosition < size();
      25             :     }
      26           0 :     void next()
      27             :     {
      28           0 :         NS_ASSERTION(mPosition < size(), "Out of bounds.");
      29           0 :         mPosition++;
      30           0 :     }
      31           0 :     void setPosition(uint32_t aPosition)
      32             :     {
      33           0 :         NS_ASSERTION(aPosition > 0 &&
      34             :                      aPosition <= size(), "Out of bounds.");
      35           0 :         mPosition = aPosition;
      36           0 :     }
      37             : 
      38             :     TX_DECL_EVAL_CONTEXT;
      39             : 
      40             : protected:
      41             :     RefPtr<txNodeSet> mContextSet;
      42             :     uint32_t mPosition;
      43             :     txIMatchContext* mInner;
      44             : };
      45             : 
      46             : #endif // __TX_XPATH_SET_CONTEXT