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_SINGLENODE_CONTEXT
       7             : #define __TX_XPATH_SINGLENODE_CONTEXT
       8             : 
       9             : #include "mozilla/Attributes.h"
      10             : #include "txIXPathContext.h"
      11             : 
      12           0 : class txSingleNodeContext : public txIEvalContext
      13             : {
      14             : public:
      15           0 :     txSingleNodeContext(const txXPathNode& aContextNode,
      16             :                         txIMatchContext* aContext)
      17           0 :         : mNode(aContextNode),
      18           0 :           mInner(aContext)
      19             :     {
      20           0 :         NS_ASSERTION(aContext, "txIMatchContext must be given");
      21           0 :     }
      22             : 
      23           0 :     nsresult getVariable(int32_t aNamespace, nsIAtom* aLName,
      24             :                          txAExprResult*& aResult) override
      25             :     {
      26           0 :         NS_ASSERTION(mInner, "mInner is null!!!");
      27           0 :         return mInner->getVariable(aNamespace, aLName, aResult);
      28             :     }
      29             : 
      30           0 :     nsresult isStripSpaceAllowed(const txXPathNode& aNode,
      31             :                                  bool& aAllowed) override
      32             :     {
      33           0 :         NS_ASSERTION(mInner, "mInner is null!!!");
      34           0 :         return mInner->isStripSpaceAllowed(aNode, aAllowed);
      35             :     }
      36             : 
      37           0 :     void* getPrivateContext() override
      38             :     {
      39           0 :         NS_ASSERTION(mInner, "mInner is null!!!");
      40           0 :         return mInner->getPrivateContext();
      41             :     }
      42             : 
      43           0 :     txResultRecycler* recycler() override
      44             :     {
      45           0 :         NS_ASSERTION(mInner, "mInner is null!!!");
      46           0 :         return mInner->recycler();
      47             :     }
      48             : 
      49           0 :     void receiveError(const nsAString& aMsg, nsresult aRes) override
      50             :     {
      51           0 :         NS_ASSERTION(mInner, "mInner is null!!!");
      52             : #ifdef DEBUG
      53           0 :         nsAutoString error(NS_LITERAL_STRING("forwarded error: "));
      54           0 :         error.Append(aMsg);
      55           0 :         mInner->receiveError(error, aRes);
      56             : #else
      57             :         mInner->receiveError(aMsg, aRes);
      58             : #endif
      59           0 :     }
      60             : 
      61           0 :     const txXPathNode& getContextNode() override
      62             :     {
      63           0 :         return mNode;
      64             :     }
      65             : 
      66           0 :     uint32_t size() override
      67             :     {
      68           0 :         return 1;
      69             :     }
      70             : 
      71           0 :     uint32_t position() override
      72             :     {
      73           0 :         return 1;
      74             :     }
      75             : 
      76             : private:
      77             :     const txXPathNode& mNode;
      78             :     txIMatchContext* mInner;
      79             : };
      80             : 
      81             : #endif // __TX_XPATH_SINGLENODE_CONTEXT