81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
#include "txIXPathContext.h"
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#include "txAtoms.h"
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#include "XMLUtils.h"
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#include "XSLTFunctions.h"
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#include "ExprResult.h"
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#include "txNamespaceMap.h"
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/*
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Implementation of XSLT 1.0 extension function: system-property
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*/
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/**
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* Creates a new system-property function call
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* aNode is the Element in the stylesheet containing the
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* Expr and is used for namespaceID resolution
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**/
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SystemPropertyFunctionCall::SystemPropertyFunctionCall(txNamespaceMap* aMappings)
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: mMappings(aMappings)
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{
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}
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/**
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* Evaluates this Expr based on the given context node and processor state
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* @param context the context node for evaluation of this Expr
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* @param cs the ContextState containing the stack information needed
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* for evaluation
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* @return the result of the evaluation
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* @see FunctionCall.h
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**/
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nsresult
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SystemPropertyFunctionCall::evaluate(txIEvalContext* aContext,
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txAExprResult** aResult)
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{
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*aResult = nsnull;
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if (!requireParams(1, 1, aContext)) {
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return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
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}
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txListIterator iter(¶ms);
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Expr* param = (Expr*)iter.next();
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nsRefPtr<txAExprResult> exprResult;
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nsresult rv = param->evaluate(aContext, getter_AddRefs(exprResult));
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NS_ENSURE_SUCCESS(rv, rv);
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nsAutoString property;
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exprResult->stringValue(property);
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txExpandedName qname;
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rv = qname.init(property, mMappings, MB_TRUE);
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NS_ENSURE_SUCCESS(rv, rv);
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if (qname.mNamespaceID == kNameSpaceID_XSLT) {
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if (qname.mLocalName == txXSLTAtoms::version) {
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return aContext->recycler()->getNumberResult(1.0, aResult);
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}
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if (qname.mLocalName == txXSLTAtoms::vendor) {
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return aContext->recycler()->getStringResult(
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NS_LITERAL_STRING("Transformiix"), aResult);
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}
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if (qname.mLocalName == txXSLTAtoms::vendorUrl) {
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return aContext->recycler()->getStringResult(
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NS_LITERAL_STRING("http://www.mozilla.org/projects/xslt/"),
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aResult);
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}
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}
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aContext->recycler()->getEmptyStringResult(aResult);
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return NS_OK;
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}
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#ifdef TX_TO_STRING
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nsresult
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SystemPropertyFunctionCall::getNameAtom(nsIAtom** aAtom)
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{
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*aAtom = txXSLTAtoms::systemProperty;
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NS_ADDREF(*aAtom);
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return NS_OK;
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}
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#endif
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