LCOV - code coverage report
Current view: top level - dom/xslt/xslt - txDocumentFunctionCall.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 72 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 6 0.0 %
Legend: Lines: hit not hit

          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             : /*
       7             :  * DocumentFunctionCall
       8             :  * A representation of the XSLT additional function: document()
       9             :  */
      10             : 
      11             : #include "nsGkAtoms.h"
      12             : #include "txIXPathContext.h"
      13             : #include "txXSLTFunctions.h"
      14             : #include "txExecutionState.h"
      15             : #include "txURIUtils.h"
      16             : 
      17             : /*
      18             :  * Creates a new DocumentFunctionCall.
      19             :  */
      20           0 : DocumentFunctionCall::DocumentFunctionCall(const nsAString& aBaseURI)
      21           0 :     : mBaseURI(aBaseURI)
      22             : {
      23           0 : }
      24             : 
      25             : static void
      26           0 : retrieveNode(txExecutionState* aExecutionState, const nsAString& aUri,
      27             :              const nsAString& aBaseUri, txNodeSet* aNodeSet)
      28             : {
      29           0 :     nsAutoString absUrl;
      30           0 :     URIUtils::resolveHref(aUri, aBaseUri, absUrl);
      31             : 
      32           0 :     int32_t hash = absUrl.RFindChar(char16_t('#'));
      33             :     uint32_t urlEnd, fragStart, fragEnd;
      34           0 :     if (hash == kNotFound) {
      35           0 :         urlEnd = absUrl.Length();
      36           0 :         fragStart = 0;
      37           0 :         fragEnd = 0;
      38             :     }
      39             :     else {
      40           0 :         urlEnd = hash;
      41           0 :         fragStart = hash + 1;
      42           0 :         fragEnd = absUrl.Length();
      43             :     }
      44             : 
      45           0 :     nsDependentSubstring docUrl(absUrl, 0, urlEnd);
      46           0 :     nsDependentSubstring frag(absUrl, fragStart, fragEnd);
      47             : 
      48           0 :     const txXPathNode* loadNode = aExecutionState->retrieveDocument(docUrl);
      49           0 :     if (loadNode) {
      50           0 :         if (frag.IsEmpty()) {
      51           0 :             aNodeSet->add(*loadNode);
      52             :         }
      53             :         else {
      54           0 :             txXPathTreeWalker walker(*loadNode);
      55           0 :             if (walker.moveToElementById(frag)) {
      56           0 :                 aNodeSet->add(walker.getCurrentPosition());
      57             :             }
      58             :         }
      59             :     }
      60           0 : }
      61             : 
      62             : /*
      63             :  * Evaluates this Expr based on the given context node and processor state
      64             :  * NOTE: the implementation is incomplete since it does not make use of the
      65             :  * second argument (base URI)
      66             :  * @param context the context node for evaluation of this Expr
      67             :  * @return the result of the evaluation
      68             :  */
      69             : nsresult
      70           0 : DocumentFunctionCall::evaluate(txIEvalContext* aContext,
      71             :                                txAExprResult** aResult)
      72             : {
      73           0 :     *aResult = nullptr;
      74             :     txExecutionState* es =
      75           0 :         static_cast<txExecutionState*>(aContext->getPrivateContext());
      76             : 
      77           0 :     RefPtr<txNodeSet> nodeSet;
      78           0 :     nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodeSet));
      79           0 :     NS_ENSURE_SUCCESS(rv, rv);
      80             : 
      81             :     // document(object, node-set?)
      82           0 :     if (!requireParams(1, 2, aContext)) {
      83           0 :         return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
      84             :     }
      85             : 
      86           0 :     RefPtr<txAExprResult> exprResult1;
      87           0 :     rv = mParams[0]->evaluate(aContext, getter_AddRefs(exprResult1));
      88           0 :     NS_ENSURE_SUCCESS(rv, rv);
      89             : 
      90           0 :     nsAutoString baseURI;
      91           0 :     bool baseURISet = false;
      92             : 
      93           0 :     if (mParams.Length() == 2) {
      94             :         // We have 2 arguments, get baseURI from the first node
      95             :         // in the resulting nodeset
      96           0 :         RefPtr<txNodeSet> nodeSet2;
      97           0 :         rv = evaluateToNodeSet(mParams[1],
      98           0 :                                aContext, getter_AddRefs(nodeSet2));
      99           0 :         NS_ENSURE_SUCCESS(rv, rv);
     100             : 
     101             :         // Make this true, even if nodeSet2 is empty. For relative URLs,
     102             :         // we'll fail to load the document with an empty base URI, and for
     103             :         // absolute URLs, the base URI doesn't matter
     104           0 :         baseURISet = true;
     105             : 
     106           0 :         if (!nodeSet2->isEmpty()) {
     107           0 :             rv = txXPathNodeUtils::getBaseURI(nodeSet2->get(0), baseURI);
     108           0 :             NS_ENSURE_SUCCESS(rv, rv);
     109             :         }
     110             :     }
     111             : 
     112           0 :     if (exprResult1->getResultType() == txAExprResult::NODESET) {
     113             :         // The first argument is a NodeSet, iterate on its nodes
     114             :         txNodeSet* nodeSet1 = static_cast<txNodeSet*>
     115             :                                          (static_cast<txAExprResult*>
     116           0 :                                                      (exprResult1));
     117             :         int32_t i;
     118           0 :         for (i = 0; i < nodeSet1->size(); ++i) {
     119           0 :             const txXPathNode& node = nodeSet1->get(i);
     120           0 :             nsAutoString uriStr;
     121           0 :             txXPathNodeUtils::appendNodeValue(node, uriStr);
     122           0 :             if (!baseURISet) {
     123             :                 // if the second argument wasn't specified, use
     124             :                 // the baseUri of node itself
     125           0 :                 rv = txXPathNodeUtils::getBaseURI(node, baseURI);
     126           0 :                 NS_ENSURE_SUCCESS(rv, rv);
     127             :             }
     128           0 :             retrieveNode(es, uriStr, baseURI, nodeSet);
     129             :         }
     130             : 
     131           0 :         NS_ADDREF(*aResult = nodeSet);
     132             : 
     133           0 :         return NS_OK;
     134             :     }
     135             : 
     136             :     // The first argument is not a NodeSet
     137           0 :     nsAutoString uriStr;
     138           0 :     exprResult1->stringValue(uriStr);
     139           0 :     const nsAString* base = baseURISet ? &baseURI : &mBaseURI;
     140           0 :     retrieveNode(es, uriStr, *base, nodeSet);
     141             : 
     142           0 :     NS_ADDREF(*aResult = nodeSet);
     143             : 
     144           0 :     return NS_OK;
     145             : }
     146             : 
     147             : Expr::ResultType
     148           0 : DocumentFunctionCall::getReturnType()
     149             : {
     150           0 :     return NODESET_RESULT;
     151             : }
     152             : 
     153             : bool
     154           0 : DocumentFunctionCall::isSensitiveTo(ContextSensitivity aContext)
     155             : {
     156           0 :     return (aContext & PRIVATE_CONTEXT) || argsSensitiveTo(aContext);
     157             : }
     158             : 
     159             : #ifdef TX_TO_STRING
     160             : nsresult
     161           0 : DocumentFunctionCall::getNameAtom(nsIAtom** aAtom)
     162             : {
     163           0 :     *aAtom = nsGkAtoms::document;
     164           0 :     NS_ADDREF(*aAtom);
     165           0 :     return NS_OK;
     166             : }
     167             : #endif

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