LCOV - app.info - content/xslt/src/xslt/txDocumentFunctionCall.cpp

LCOV - code coverage report
| Current view: | directory - content/xslt/src/xslt - txDocumentFunctionCall.cpp (source / functions) |  | Found | Hit | Coverage |
| Test: | app.info | Lines: | 70 | 0 | 0.0 %
| Date: | 2012-06-02 | Functions: | 6 | 0 | 0.0 %

           1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
           2                 : /* ***** BEGIN LICENSE BLOCK *****
           3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
           4                 :  *
           5                 :  * The contents of this file are subject to the Mozilla Public License Version
           6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
           7                 :  * the License. You may obtain a copy of the License at
           8                 :  * http://www.mozilla.org/MPL/
           9                 :  *
          10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
          11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
          12                 :  * for the specific language governing rights and limitations under the
          13                 :  * License.
          14                 :  *
          15                 :  * The Original Code is TransforMiiX XSLT processor code.
          16                 :  *
          17                 :  * The Initial Developer of the Original Code is
          18                 :  * The MITRE Corporation.
          19                 :  * Portions created by the Initial Developer are Copyright (C) 1999
          20                 :  * the Initial Developer. All Rights Reserved.
          21                 :  *
          22                 :  * Contributor(s):
          23                 :  *   Olivier Gerardin <ogerardin@vo.lu> (Original Author)
          24                 :  *
          25                 :  * Alternatively, the contents of this file may be used under the terms of
          26                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
          27                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
          28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
          29                 :  * of those above. If you wish to allow use of your version of this file only
          30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
          31                 :  * use your version of this file under the terms of the MPL, indicate your
          32                 :  * decision by deleting the provisions above and replace them with the notice
          33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
          34                 :  * the provisions above, a recipient may use your version of this file under
          35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
          36                 :  *
          37                 :  * ***** END LICENSE BLOCK ***** */
          38                 :
          39                 : /*
          40                 :  * DocumentFunctionCall
          41                 :  * A representation of the XSLT additional function: document()
          42                 :  */
          43                 :
          44                 : #include "nsGkAtoms.h"
          45                 : #include "txIXPathContext.h"
          46                 : #include "txXSLTFunctions.h"
          47                 : #include "txExecutionState.h"
          48                 : #include "txURIUtils.h"
          49                 :
          50                 : /*
          51                 :  * Creates a new DocumentFunctionCall.
          52                 :  */
          53               0 : DocumentFunctionCall::DocumentFunctionCall(const nsAString& aBaseURI)
          54               0 :     : mBaseURI(aBaseURI)
          55                 : {
          56               0 : }
          57                 :
          58                 : static void
          59               0 : retrieveNode(txExecutionState* aExecutionState, const nsAString& aUri,
          60                 :              const nsAString& aBaseUri, txNodeSet* aNodeSet)
          61                 : {
          62               0 :     nsAutoString absUrl;
          63               0 :     URIUtils::resolveHref(aUri, aBaseUri, absUrl);
          64                 :
          65               0 :     PRInt32 hash = absUrl.RFindChar(PRUnichar('#'));
          66                 :     PRUint32 urlEnd, fragStart, fragEnd;
          67               0 :     if (hash == kNotFound) {
          68               0 :         urlEnd = absUrl.Length();
          69               0 :         fragStart = 0;
          70               0 :         fragEnd = 0;
          71                 :     }
          72                 :     else {
          73               0 :         urlEnd = hash;
          74               0 :         fragStart = hash + 1;
          75               0 :         fragEnd = absUrl.Length();
          76                 :     }
          77                 :
          78               0 :     nsDependentSubstring docUrl(absUrl, 0, urlEnd);
          79               0 :     nsDependentSubstring frag(absUrl, fragStart, fragEnd);
          80                 :
          81               0 :     const txXPathNode* loadNode = aExecutionState->retrieveDocument(docUrl);
          82               0 :     if (loadNode) {
          83               0 :         if (frag.IsEmpty()) {
          84               0 :             aNodeSet->add(*loadNode);
          85                 :         }
          86                 :         else {
          87               0 :             txXPathTreeWalker walker(*loadNode);
          88               0 :             if (walker.moveToElementById(frag)) {
          89               0 :                 aNodeSet->add(walker.getCurrentPosition());
          90                 :             }
          91                 :         }
          92                 :     }
          93               0 : }
          94                 :
          95                 : /*
          96                 :  * Evaluates this Expr based on the given context node and processor state
          97                 :  * NOTE: the implementation is incomplete since it does not make use of the
          98                 :  * second argument (base URI)
          99                 :  * @param context the context node for evaluation of this Expr
         100                 :  * @return the result of the evaluation
         101                 :  */
         102                 : nsresult
         103               0 : DocumentFunctionCall::evaluate(txIEvalContext* aContext,
         104                 :                                txAExprResult** aResult)
         105                 : {
         106               0 :     *aResult = nsnull;
         107                 :     txExecutionState* es =
         108               0 :         static_cast<txExecutionState*>(aContext->getPrivateContext());
         109                 :
         110               0 :     nsRefPtr<txNodeSet> nodeSet;
         111               0 :     nsresult rv = aContext->recycler()->getNodeSet(getter_AddRefs(nodeSet));
         112               0 :     NS_ENSURE_SUCCESS(rv, rv);
         113                 :
         114                 :     // document(object, node-set?)
         115               0 :     if (!requireParams(1, 2, aContext)) {
         116               0 :         return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
         117                 :     }
         118                 :
         119               0 :     nsRefPtr<txAExprResult> exprResult1;
         120               0 :     rv = mParams[0]->evaluate(aContext, getter_AddRefs(exprResult1));
         121               0 :     NS_ENSURE_SUCCESS(rv, rv);
         122                 :
         123               0 :     nsAutoString baseURI;
         124               0 :     bool baseURISet = false;
         125                 :
         126               0 :     if (mParams.Length() == 2) {
         127                 :         // We have 2 arguments, get baseURI from the first node
         128                 :         // in the resulting nodeset
         129               0 :         nsRefPtr<txNodeSet> nodeSet2;
         130               0 :         rv = evaluateToNodeSet(mParams[1],
         131               0 :                                aContext, getter_AddRefs(nodeSet2));
         132               0 :         NS_ENSURE_SUCCESS(rv, rv);
         133                 :
         134                 :         // Make this true, even if nodeSet2 is empty. For relative URLs,
         135                 :         // we'll fail to load the document with an empty base URI, and for
         136                 :         // absolute URLs, the base URI doesn't matter
         137               0 :         baseURISet = true;
         138                 :
         139               0 :         if (!nodeSet2->isEmpty()) {
         140               0 :             txXPathNodeUtils::getBaseURI(nodeSet2->get(0), baseURI);
         141                 :         }
         142                 :     }
         143                 :
         144               0 :     if (exprResult1->getResultType() == txAExprResult::NODESET) {
         145                 :         // The first argument is a NodeSet, iterate on its nodes
         146                 :         txNodeSet* nodeSet1 = static_cast<txNodeSet*>
         147                 :                                          (static_cast<txAExprResult*>
         148               0 :                                                      (exprResult1));
         149                 :         PRInt32 i;
         150               0 :         for (i = 0; i < nodeSet1->size(); ++i) {
         151               0 :             const txXPathNode& node = nodeSet1->get(i);
         152               0 :             nsAutoString uriStr;
         153               0 :             txXPathNodeUtils::appendNodeValue(node, uriStr);
         154               0 :             if (!baseURISet) {
         155                 :                 // if the second argument wasn't specified, use
         156                 :                 // the baseUri of node itself
         157               0 :                 txXPathNodeUtils::getBaseURI(node, baseURI);
         158                 :             }
         159               0 :             retrieveNode(es, uriStr, baseURI, nodeSet);
         160                 :         }
         161                 :
         162               0 :         NS_ADDREF(*aResult = nodeSet);
         163                 :
         164               0 :         return NS_OK;
         165                 :     }
         166                 :
         167                 :     // The first argument is not a NodeSet
         168               0 :     nsAutoString uriStr;
         169               0 :     exprResult1->stringValue(uriStr);
         170               0 :     const nsAString* base = baseURISet ? &baseURI : &mBaseURI;
         171               0 :     retrieveNode(es, uriStr, *base, nodeSet);
         172                 :
         173               0 :     NS_ADDREF(*aResult = nodeSet);
         174                 :
         175               0 :     return NS_OK;
         176                 : }
         177                 :
         178                 : Expr::ResultType
         179               0 : DocumentFunctionCall::getReturnType()
         180                 : {
         181               0 :     return NODESET_RESULT;
         182                 : }
         183                 :
         184                 : bool
         185               0 : DocumentFunctionCall::isSensitiveTo(ContextSensitivity aContext)
         186                 : {
         187               0 :     return (aContext & PRIVATE_CONTEXT) || argsSensitiveTo(aContext);
         188                 : }
         189                 :
         190                 : #ifdef TX_TO_STRING
         191                 : nsresult
         192               0 : DocumentFunctionCall::getNameAtom(nsIAtom** aAtom)
         193                 : {
         194               0 :     *aAtom = nsGkAtoms::document;
         195               0 :     NS_ADDREF(*aAtom);
         196               0 :     return NS_OK;
         197                 : }
         198                 : #endif

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