64ce860e2a
Patch mainly by sicking, but large parts also by Pike and peterv. Tracker is bug 185797. r=Pike/sicking rs=peterv. git-svn-id: svn://10.0.0.236/trunk@140310 18797224-902f-48f8-a5cc-f745e15eee43
74 lines
2.4 KiB
C++
74 lines
2.4 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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/*
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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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ExprResult* SystemPropertyFunctionCall::evaluate(txIEvalContext* aContext)
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{
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ExprResult* result = nsnull;
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if (requireParams(1, 1, aContext)) {
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txListIterator iter(¶ms);
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Expr* param = (Expr*)iter.next();
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ExprResult* exprResult = param->evaluate(aContext);
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if (exprResult->getResultType() == ExprResult::STRING) {
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nsAutoString property;
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exprResult->stringValue(property);
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txExpandedName qname;
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nsresult rv = qname.init(property, mMappings, MB_TRUE);
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if (NS_SUCCEEDED(rv) &&
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qname.mNamespaceID == kNameSpaceID_XSLT) {
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if (qname.mLocalName == txXSLTAtoms::version) {
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result = new NumberResult(1.0);
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}
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else if (qname.mLocalName == txXSLTAtoms::vendor) {
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result = new StringResult(NS_LITERAL_STRING("Transformiix"));
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}
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else if (qname.mLocalName == txXSLTAtoms::vendorUrl) {
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result = new StringResult(NS_LITERAL_STRING("http://www.mozilla.org/projects/xslt/"));
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}
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}
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}
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else {
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NS_NAMED_LITERAL_STRING(err, "Invalid argument passed to system-property(), expecting String");
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aContext->receiveError(err, NS_ERROR_XPATH_INVALID_ARG);
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result = new StringResult(err);
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}
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}
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if (!result) {
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result = new StringResult();
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}
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return result;
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}
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nsresult 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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