peterv%netscape.com 6aaceba52a Fix for bug 92377 (Build failure: dom/src/base/nsDOMClassInfo.cpp depends on extensions/xmlextras). r=shaver, sr=jst, a=asa.
git-svn-id: svn://10.0.0.236/trunk@115694 18797224-902f-48f8-a5cc-f745e15eee43
2002-03-04 02:25:08 +00:00

2516 lines
89 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is TransforMiiX XSLT processor.
*
* The Initial Developer of the Original Code is The MITRE Corporation.
* Portions created by MITRE are Copyright (C) 1999 The MITRE Corporation.
*
* Portions created by Keith Visco as a Non MITRE employee,
* (C) 1999, 2000 Keith Visco. All Rights Reserved.
*
* Contributor(s):
* Keith Visco, kvisco@ziplink.net
* -- original author.
*
* Bob Miller, kbob@oblix.com
* -- plugged core leak.
*
* Pierre Phaneuf, pp@ludusdesign.com
* -- fixed some XPCOM usage.
*
* Marina Mechtcheriakova, mmarina@mindspring.com
* -- Added call to recurisvely attribute-set processing on
* xsl:attribute-set itself
* -- Added call to handle attribute-set processing for xsl:copy
*
* Nathan Pride, npride@wavo.com
* -- fixed a document base issue
*
* Olivier Gerardin
* -- Changed behavior of passing parameters to templates
*
*/
#include "XSLTProcessor.h"
#include "Names.h"
#include "XMLParser.h"
#include "VariableBinding.h"
#include "XMLUtils.h"
#include "XMLDOMUtils.h"
#include "txNodeSorter.h"
#include "Numbering.h"
#include "Tokenizer.h"
#include "URIUtils.h"
#include "txAtoms.h"
#include "txRtfHandler.h"
#ifndef TX_EXE
#include "nsIObserverService.h"
#include "nsIURL.h"
#include "nsIServiceManager.h"
#include "nsIIOService.h"
#include "nsILoadGroup.h"
#include "nsIChannel.h"
#include "nsNetCID.h"
#include "nsIDOMClassInfo.h"
#include "nsIConsoleService.h"
#include "nsIScriptLoader.h"
#else
#include "TxLog.h"
#include "txHTMLOutput.h"
#include "txTextOutput.h"
#include "txXMLOutput.h"
#endif
//-----------------------------------/
//- Implementation of XSLTProcessor -/
//-----------------------------------/
/**
* XSLTProcessor is a class for Processing XSL stylesheets
**/
/**
* A warning message used by all templates that do not allow non character
* data to be generated
**/
const String XSLTProcessor::NON_TEXT_TEMPLATE_WARNING =
"templates for the following element are not allowed to generate non character data: ";
/*
* Implement static variables for atomservice and dom.
*/
#ifdef TX_EXE
TX_IMPL_ATOM_STATICS;
TX_IMPL_DOM_STATICS;
#endif
/**
* Creates a new XSLTProcessor
**/
XSLTProcessor::XSLTProcessor() : mOutputHandler(0),
mResultHandler(0)
{
#ifndef TX_EXE
NS_INIT_ISUPPORTS();
#endif
xslVersion.append("1.0");
appName.append("TransforMiiX");
appVersion.append("1.0 [beta v20010123]");
//-- create XSL element types
xslTypes.setObjectDeletion(MB_TRUE);
xslTypes.put(APPLY_IMPORTS, new XSLType(XSLType::APPLY_IMPORTS));
xslTypes.put(APPLY_TEMPLATES, new XSLType(XSLType::APPLY_TEMPLATES));
xslTypes.put(ATTRIBUTE, new XSLType(XSLType::ATTRIBUTE));
xslTypes.put(ATTRIBUTE_SET, new XSLType(XSLType::ATTRIBUTE_SET));
xslTypes.put(CALL_TEMPLATE, new XSLType(XSLType::CALL_TEMPLATE));
xslTypes.put(CHOOSE, new XSLType(XSLType::CHOOSE));
xslTypes.put(COMMENT, new XSLType(XSLType::COMMENT));
xslTypes.put(COPY, new XSLType(XSLType::COPY));
xslTypes.put(COPY_OF, new XSLType(XSLType::COPY_OF));
xslTypes.put(DECIMAL_FORMAT, new XSLType(XSLType::DECIMAL_FORMAT));
xslTypes.put(ELEMENT, new XSLType(XSLType::ELEMENT));
xslTypes.put(FOR_EACH, new XSLType(XSLType::FOR_EACH));
xslTypes.put(IF, new XSLType(XSLType::IF));
xslTypes.put(IMPORT, new XSLType(XSLType::IMPORT));
xslTypes.put(INCLUDE, new XSLType(XSLType::INCLUDE));
xslTypes.put(KEY, new XSLType(XSLType::KEY));
xslTypes.put(MESSAGE, new XSLType(XSLType::MESSAGE));
xslTypes.put(NUMBER, new XSLType(XSLType::NUMBER));
xslTypes.put(OTHERWISE, new XSLType(XSLType::OTHERWISE));
xslTypes.put(OUTPUT, new XSLType(XSLType::OUTPUT));
xslTypes.put(PARAM, new XSLType(XSLType::PARAM));
xslTypes.put(PROC_INST, new XSLType(XSLType::PROC_INST));
xslTypes.put(PRESERVE_SPACE, new XSLType(XSLType::PRESERVE_SPACE));
xslTypes.put(STRIP_SPACE, new XSLType(XSLType::STRIP_SPACE));
xslTypes.put(SORT, new XSLType(XSLType::SORT));
xslTypes.put(TEMPLATE, new XSLType(XSLType::TEMPLATE));
xslTypes.put(TEXT, new XSLType(XSLType::TEXT));
xslTypes.put(VALUE_OF, new XSLType(XSLType::VALUE_OF));
xslTypes.put(VARIABLE, new XSLType(XSLType::VARIABLE));
xslTypes.put(WHEN, new XSLType(XSLType::WHEN));
xslTypes.put(WITH_PARAM, new XSLType(XSLType::WITH_PARAM));
// Create default expressions
ExprParser parser;
String node("node()");
mNodeExpr = parser.createExpr(node);
} //-- XSLTProcessor
/**
* Default destructor
**/
XSLTProcessor::~XSLTProcessor()
{
delete mOutputHandler;
delete mNodeExpr;
}
#ifndef TX_EXE
// XXX START
// XXX Mozilla module only code. This should move to txMozillaXSLTProcessor
// XXX
NS_IMPL_ADDREF(XSLTProcessor)
NS_IMPL_RELEASE(XSLTProcessor)
NS_INTERFACE_MAP_BEGIN(XSLTProcessor)
NS_INTERFACE_MAP_ENTRY(nsIDocumentTransformer)
NS_INTERFACE_MAP_ENTRY(nsIScriptLoaderObserver)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDocumentTransformer)
NS_INTERFACE_MAP_ENTRY_EXTERNAL_DOM_CLASSINFO(XSLTProcessor)
NS_INTERFACE_MAP_END
// XXX
// XXX Mozilla module only code. This should move to txMozillaXSLTProcessor
// XXX END
#else
/*
* Initialize atom tables.
*/
MBool txInit()
{
if (!txNamespaceManager::init())
return MB_FALSE;
if (!txHTMLAtoms::init())
return MB_FALSE;
if (!txXMLAtoms::init())
return MB_FALSE;
if (!txXPathAtoms::init())
return MB_FALSE;
return txXSLTAtoms::init();
}
/*
* To be called when done with transformiix.
*
* Free atom table, namespace manager.
*/
MBool txShutdown()
{
txNamespaceManager::shutdown();
txHTMLAtoms::shutdown();
txXMLAtoms::shutdown();
txXPathAtoms::shutdown();
txXSLTAtoms::shutdown();
return MB_TRUE;
}
#endif
/**
* Registers the given ErrorObserver with this ProcessorState
**/
void XSLTProcessor::addErrorObserver(ErrorObserver& errorObserver) {
errorObservers.add(&errorObserver);
} //-- addErrorObserver
String& XSLTProcessor::getAppName() {
return appName;
} //-- getAppName
String& XSLTProcessor::getAppVersion() {
return appVersion;
} //-- getAppVersion
#ifdef TX_EXE
// XXX START
// XXX Standalone only code. This should move to txStandaloneXSLTProcessor
// XXX
/**
* Parses all XML Stylesheet PIs associated with the
* given XML document. If any stylesheet PIs are found with
* type="text/xsl" the href psuedo attribute value will be
* added to the given href argument. If multiple text/xsl stylesheet PIs
* are found, the one closest to the end of the document is used.
**/
void XSLTProcessor::getHrefFromStylesheetPI(Document& xmlDocument, String& href) {
Node* node = xmlDocument.getFirstChild();
String type;
String tmpHref;
while (node) {
if ( node->getNodeType() == Node::PROCESSING_INSTRUCTION_NODE ) {
String target = ((ProcessingInstruction*)node)->getTarget();
if ( STYLESHEET_PI.isEqual(target) ||
STYLESHEET_PI_OLD.isEqual(target) ) {
String data = ((ProcessingInstruction*)node)->getData();
type.clear();
tmpHref.clear();
parseStylesheetPI(data, type, tmpHref);
if ( XSL_MIME_TYPE.isEqual(type) ) {
href.clear();
URIUtils::resolveHref(tmpHref, node->getBaseURI(), href);
}
}
}
node = node->getNextSibling();
}
} //-- getHrefFromStylesheetPI
/**
* Parses the contents of data, and returns the type and href psuedo attributes
**/
void XSLTProcessor::parseStylesheetPI(String& data, String& type, String& href) {
PRInt32 size = data.length();
NamedMap bufferMap;
bufferMap.put("type", &type);
bufferMap.put("href", &href);
int ccount = 0;
MBool inLiteral = MB_FALSE;
UNICODE_CHAR matchQuote = '"';
String sink;
String* buffer = &sink;
for (ccount = 0; ccount < size; ccount++) {
UNICODE_CHAR ch = data.charAt(ccount);
switch ( ch ) {
case ' ' :
if ( inLiteral ) {
buffer->append(ch);
}
break;
case '=':
if ( inLiteral ) buffer->append(ch);
else if (!buffer->isEmpty()) {
buffer = (String*)bufferMap.get(*buffer);
if ( !buffer ) {
sink.clear();
buffer = &sink;
}
}
break;
case '"' :
case '\'':
if (inLiteral) {
if ( matchQuote == ch ) {
inLiteral = MB_FALSE;
sink.clear();
buffer = &sink;
}
else buffer->append(ch);
}
else {
inLiteral = MB_TRUE;
matchQuote = ch;
}
break;
default:
buffer->append(ch);
break;
}
}
} //-- parseStylesheetPI
/**
* Processes the given XML Document, the XSL stylesheet
* will be retrieved from the XML Stylesheet Processing instruction,
* otherwise an empty document will be returned.
* @param xmlDocument the XML document to process
* @param documentBase the document base of the XML document, for
* resolving relative URIs
* @return the result tree.
**/
Document* XSLTProcessor::process(Document& xmlDocument) {
//-- look for Stylesheet PI
Document xslDocument; //-- empty for now
return process(xmlDocument, xslDocument);
} //-- process
/**
* Reads an XML Document from the given XML input stream, and
* processes the document using the XSL document derived from
* the given XSL input stream.
* @return the result tree.
**/
Document* XSLTProcessor::process
(istream& xmlInput, String& xmlFilename,
istream& xslInput, String& xslFilename) {
//-- read in XML Document
XMLParser xmlParser;
Document* xmlDoc = xmlParser.parse(xmlInput, xmlFilename);
if (!xmlDoc) {
String err("error reading XML document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
return 0;
}
//-- Read in XSL document
Document* xslDoc = xmlParser.parse(xslInput, xslFilename);
if (!xslDoc) {
String err("error reading XSL stylesheet document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
delete xmlDoc;
return 0;
}
Document* result = process(*xmlDoc, *xslDoc);
delete xmlDoc;
delete xslDoc;
return result;
} //-- process
/**
* Reads an XML document from the given XML input stream. The
* XML document is processed using the associated XSL document
* retrieved from the XML document's Stylesheet Processing Instruction,
* otherwise an empty document will be returned.
* @param xmlDocument the XML document to process
* @param documentBase the document base of the XML document, for
* resolving relative URIs
* @return the result tree.
**/
Document* XSLTProcessor::process(istream& xmlInput, String& xmlFilename) {
//-- read in XML Document
XMLParser xmlParser;
Document* xmlDoc = xmlParser.parse(xmlInput, xmlFilename);
if (!xmlDoc) {
String err("error reading XML document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
return 0;
}
//-- Read in XSL document
String href;
String errMsg;
getHrefFromStylesheetPI(*xmlDoc, href);
istream* xslInput = URIUtils::getInputStream(href,errMsg);
Document* xslDoc = 0;
if ( xslInput ) {
xslDoc = xmlParser.parse(*xslInput, href);
delete xslInput;
}
if (!xslDoc) {
String err("error reading XSL stylesheet document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
delete xmlDoc;
return 0;
}
Document* result = process(*xmlDoc, *xslDoc);
delete xmlDoc;
delete xslDoc;
return result;
} //-- process
// XXX
// XXX Standalone only code. This should move to txStandaloneXSLTProcessor
// XXX END
#endif
/**
* Processes the Top level elements for an XSL stylesheet
**/
void XSLTProcessor::processStylesheet(Document* aSource,
Document* aStylesheet,
ListIterator* aImportFrame,
ProcessorState* aPs)
{
NS_ASSERTION(aStylesheet, "processTopLevel called without stylesheet");
if (!aStylesheet || !aStylesheet->getDocumentElement())
return;
Element* elem = aStylesheet->getDocumentElement();
txAtom* localName;
PRInt32 namespaceID = elem->getNamespaceID();
elem->getLocalName(&localName);
if (((localName == txXSLTAtoms::stylesheet) ||
(localName == txXSLTAtoms::transform)) &&
(namespaceID == kNameSpaceID_XSLT)) {
processTopLevel(aSource, elem, aImportFrame, aPs);
}
else {
NS_ASSERTION(aImportFrame->current(), "no current importframe");
if (!aImportFrame->current()) {
TX_IF_RELEASE_ATOM(localName);
return;
}
aPs->addLREStylesheet(aStylesheet,
(ProcessorState::ImportFrame*)aImportFrame->current());
}
TX_IF_RELEASE_ATOM(localName);
}
/**
* Processes the Top level elements for an XSL stylesheet
**/
void XSLTProcessor::processTopLevel(Document* aSource,
Element* aStylesheet,
ListIterator* importFrame,
ProcessorState* aPs)
{
// Index templates and process top level xsl elements
NS_ASSERTION(aStylesheet, "processTopLevel called without stylesheet element");
if (!aStylesheet)
return;
ProcessorState::ImportFrame* currentFrame =
(ProcessorState::ImportFrame*)importFrame->current();
NS_ASSERTION(currentFrame,
"processTopLevel called with no current importframe");
if (!currentFrame)
return;
NS_ASSERTION(aSource, "processTopLevel called without source document");
MBool importsDone = MB_FALSE;
Node* node = aStylesheet->getFirstChild();
while (node && !importsDone) {
if (node->getNodeType() == Node::ELEMENT_NODE) {
Element* element = (Element*)node;
switch (getElementType(element, aPs)) {
case XSLType::IMPORT :
{
String hrefAttr, href;
element->getAttr(txXSLTAtoms::href, kNameSpaceID_None,
hrefAttr);
URIUtils::resolveHref(hrefAttr, element->getBaseURI(),
href);
// Create a new ImportFrame with correct firstNotImported
ProcessorState::ImportFrame *nextFrame, *newFrame;
nextFrame =
(ProcessorState::ImportFrame*)importFrame->next();
newFrame = new ProcessorState::ImportFrame(nextFrame);
if (!newFrame) {
// XXX ErrorReport: out of memory
break;
}
// Insert frame and process stylesheet
importFrame->addBefore(newFrame);
importFrame->previous();
processInclude(href, aSource, importFrame, aPs);
// Restore iterator to initial position
importFrame->previous();
break;
}
default:
importsDone = MB_TRUE;
break;
}
}
if (!importsDone)
node = node->getNextSibling();
}
while (node) {
if (node->getNodeType() == Node::ELEMENT_NODE) {
Element* element = (Element*)node;
switch (getElementType(element, aPs)) {
case XSLType::ATTRIBUTE_SET:
aPs->addAttributeSet(element, currentFrame);
break;
case XSLType::DECIMAL_FORMAT :
{
if (!aPs->addDecimalFormat(element)) {
// Add error to ErrorObserver
String fName;
element->getAttr(txXSLTAtoms::name, kNameSpaceID_None,
fName);
String err("unable to add ");
if (fName.isEmpty())
err.append("default");
else {
err.append("\"");
err.append(fName);
err.append("\"");
}
err.append(" decimal format for xsl:decimal-format");
notifyError(err);
}
break;
}
case XSLType::PARAM :
{
String name;
element->getAttr(txXSLTAtoms::name, kNameSpaceID_None,
name);
if (name.isEmpty()) {
notifyError("missing required name attribute for xsl:param");
break;
}
ExprResult* exprResult
= processVariable(aSource, element, aPs);
bindVariable(name, exprResult, MB_TRUE, aPs);
break;
}
case XSLType::IMPORT :
{
notifyError("xsl:import only allowed at top of stylesheet");
break;
}
case XSLType::INCLUDE :
{
String hrefAttr, href;
element->getAttr(txXSLTAtoms::href, kNameSpaceID_None,
hrefAttr);
URIUtils::resolveHref(hrefAttr, element->getBaseURI(),
href);
processInclude(href, aSource, importFrame, aPs);
break;
}
case XSLType::KEY :
{
if (!aPs->addKey(element)) {
String name;
element->getAttr(txXSLTAtoms::name, kNameSpaceID_None,
name);
String err("error adding key '");
err.append(name);
err.append("'");
notifyError(err);
}
break;
}
case XSLType::OUTPUT :
{
txOutputFormat& format = currentFrame->mOutputFormat;
String attValue;
if (element->getAttr(txXSLTAtoms::method, kNameSpaceID_None,
attValue)) {
if (attValue.isEqual("html"))
format.mMethod = eHTMLOutput;
else if (attValue.isEqual("text"))
format.mMethod = eTextOutput;
else
format.mMethod = eXMLOutput;
}
if (element->getAttr(txXSLTAtoms::version, kNameSpaceID_None,
attValue))
format.mVersion = attValue;
if (element->getAttr(txXSLTAtoms::encoding, kNameSpaceID_None,
attValue))
format.mEncoding = attValue;
if (element->getAttr(txXSLTAtoms::omitXmlDeclaration,
kNameSpaceID_None, attValue))
format.mOmitXMLDeclaration = attValue.isEqual(YES_VALUE) ? eTrue : eFalse;
if (element->getAttr(txXSLTAtoms::standalone, kNameSpaceID_None,
attValue))
format.mStandalone = attValue.isEqual(YES_VALUE) ? eTrue : eFalse;
if (element->getAttr(txXSLTAtoms::doctypePublic,
kNameSpaceID_None, attValue))
format.mPublicId = attValue;
if (element->getAttr(txXSLTAtoms::doctypeSystem,
kNameSpaceID_None, attValue))
format.mSystemId = attValue;
if (element->getAttr(txXSLTAtoms::cdataSectionElements,
kNameSpaceID_None, attValue)) {
txTokenizer tokens(attValue);
String token;
while (tokens.hasMoreTokens()) {
tokens.nextToken(token);
if (!XMLUtils::isValidQName(token))
break;
String namePart;
XMLUtils::getPrefix(token, namePart);
txAtom* nameAtom = TX_GET_ATOM(namePart);
PRInt32 nsID = element->lookupNamespaceID(nameAtom);
TX_IF_RELEASE_ATOM(nameAtom);
if (nsID == kNameSpaceID_Unknown)
// XXX ErrorReport: unknown prefix
break;
XMLUtils::getLocalPart(token, namePart);
nameAtom = TX_GET_ATOM(namePart);
if (!nameAtom)
// XXX ErrorReport: out of memory
break;
txExpandedName* qname = new txExpandedName(nsID, nameAtom);
TX_RELEASE_ATOM(nameAtom);
if (!qname)
// XXX ErrorReport: out of memory
break;
format.mCDATASectionElements.add(qname);
}
}
if (element->getAttr(txXSLTAtoms::indent, kNameSpaceID_None,
attValue))
format.mIndent = attValue.isEqual(YES_VALUE) ? eTrue : eFalse;
if (element->getAttr(txXSLTAtoms::mediaType, kNameSpaceID_None,
attValue))
format.mMediaType = attValue;
break;
}
case XSLType::TEMPLATE :
aPs->addTemplate(element, currentFrame);
break;
case XSLType::VARIABLE :
{
String name;
element->getAttr(txXSLTAtoms::name, kNameSpaceID_None,
name);
if (name.isEmpty()) {
notifyError("missing required name attribute for xsl:variable");
break;
}
ExprResult* exprResult = processVariable(aSource, element, aPs);
bindVariable(name, exprResult, MB_FALSE, aPs);
break;
}
case XSLType::PRESERVE_SPACE :
{
String elements;
if (!element->getAttr(txXSLTAtoms::elements,
kNameSpaceID_None, elements)) {
//-- add error to ErrorObserver
String err("missing required 'elements' attribute for ");
err.append("xsl:preserve-space");
notifyError(err);
}
else {
aPs->shouldStripSpace(elements,
MB_FALSE,
currentFrame);
}
break;
}
case XSLType::STRIP_SPACE :
{
String elements;
if (!element->getAttr(txXSLTAtoms::elements,
kNameSpaceID_None, elements)) {
//-- add error to ErrorObserver
String err("missing required 'elements' attribute for ");
err.append("xsl:strip-space");
notifyError(err);
}
else {
aPs->shouldStripSpace(elements,
MB_TRUE,
currentFrame);
}
break;
}
default:
{
// unknown
break;
}
}
}
node = node->getNextSibling();
}
}
/*
* Processes an include or import stylesheet
* @param aHref URI of stylesheet to process
* @param aSource source document
* @param aImportFrame current importFrame iterator
* @param aPs current ProcessorState
*/
void XSLTProcessor::processInclude(String& aHref,
Document* aSource,
ListIterator* aImportFrame,
ProcessorState* aPs)
{
// make sure the include isn't included yet
StackIterator* iter = aPs->getEnteredStylesheets()->iterator();
if (!iter) {
// XXX report out of memory
return;
}
while (iter->hasNext()) {
if (((String*)iter->next())->isEqual(aHref)) {
String err("Stylesheet includes itself. URI: ");
err.append(aHref);
notifyError(err);
delete iter;
return;
}
}
aPs->getEnteredStylesheets()->push(&aHref);
delete iter;
// Load XSL document
Node* stylesheet = aPs->retrieveDocument(aHref, NULL_STRING);
if (!stylesheet) {
String err("Unable to load included stylesheet ");
err.append(aHref);
notifyError(err);
aPs->getEnteredStylesheets()->pop();
return;
}
switch(stylesheet->getNodeType()) {
case Node::DOCUMENT_NODE :
processStylesheet(aSource,
(Document*)stylesheet,
aImportFrame,
aPs);
break;
case Node::ELEMENT_NODE :
processTopLevel(aSource, (Element*)stylesheet, aImportFrame, aPs);
break;
default:
// This should never happen
String err("Unsupported fragment identifier");
notifyError(err);
break;
}
aPs->getEnteredStylesheets()->pop();
}
#ifdef TX_EXE
// XXX START
// XXX Standalone only code. This should move to txStandaloneXSLTProcessor
// XXX
/*
* Processes the given XML Document using the given XSL document
* and returns the result tree
*/
Document* XSLTProcessor::process(Document& xmlDocument,
Document& xslDocument)
{
Document* result = new Document();
if (!result)
// XXX ErrorReport: out of memory
return 0;
/* XXX Disabled for now, need to implement a handler
that creates a result tree.
// Start of block to ensure the destruction of the ProcessorState
// before the destruction of the result document.
{
// Create a new ProcessorState
ProcessorState ps(&aXMLDocument, &aXSLTDocument, &result);
// Add error observers
txListIterator iter(&errorObservers);
while (iter.hasNext())
ps.addErrorObserver(*(ErrorObserver*)iter.next());
NodeSet nodeSet(&aXMLDocument);
ps.pushCurrentNode(&aXMLDocument);
ps.getNodeSetStack()->push(&nodeSet);
// Index templates and process top level xsl elements
txListIterator importFrame(ps.getImportFrames());
importFrame.addAfter(new ProcessorState::ImportFrame(0));
if (!importFrame.next()) {
delete result;
// XXX ErrorReport: out of memory
return 0;
}
processStylesheet(&aXMLDocument, &aXSLTDocument, &importFrame, &ps);
initializeHandlers(&ps);
// XXX Set the result document on the handler
// Process root of XML source document
startTransform(&aXMLDocument, &ps);
}
// End of block to ensure the destruction of the ProcessorState
// before the destruction of the result document.
XXX End of disabled section */
// Return result Document
return result;
}
/*
* Processes the given XML Document using the given XSL document
* and prints the results to the given ostream argument
*/
void XSLTProcessor::process(Document& aXMLDocument,
Node& aStylesheet,
ostream& aOut)
{
// Need a result document for creating result tree fragments.
Document result;
// Start of block to ensure the destruction of the ProcessorState
// before the destruction of the result document.
{
// Create a new ProcessorState
Document* stylesheetDoc = 0;
Element* stylesheetElem = 0;
if (aStylesheet.getNodeType() == Node::DOCUMENT_NODE) {
stylesheetDoc = (Document*)&aStylesheet;
}
else {
stylesheetElem = (Element*)&aStylesheet;
stylesheetDoc = aStylesheet.getOwnerDocument();
}
ProcessorState ps(&aXMLDocument, stylesheetDoc, &result);
// Add error observers
txListIterator iter(&errorObservers);
while (iter.hasNext())
ps.addErrorObserver(*(ErrorObserver*)iter.next());
NodeSet nodeSet(&aXMLDocument);
ps.pushCurrentNode(&aXMLDocument);
ps.getNodeSetStack()->push(&nodeSet);
// Index templates and process top level xsl elements
txListIterator importFrame(ps.getImportFrames());
importFrame.addAfter(new ProcessorState::ImportFrame(0));
if (!importFrame.next())
// XXX ErrorReport: out of memory
return;
if (stylesheetElem)
processTopLevel(&aXMLDocument, stylesheetElem, &importFrame, &ps);
else
processStylesheet(&aXMLDocument, stylesheetDoc, &importFrame, &ps);
initializeHandlers(&ps);
if (mOutputHandler)
mOutputHandler->setOutputStream(&aOut);
// Process root of XML source document
startTransform(&aXMLDocument, &ps);
}
// End of block to ensure the destruction of the ProcessorState
// before the destruction of the result document.
}
/**
* Reads an XML Document from the given XML input stream.
* The XSL Stylesheet is obtained from the XML Documents stylesheet PI.
* If no Stylesheet is found, an empty document will be the result;
* otherwise the XML Document is processed using the stylesheet.
* The result tree is printed to the given ostream argument,
* will not close the ostream argument
**/
void XSLTProcessor::process
(istream& xmlInput, String& xmlFilename, ostream& out)
{
XMLParser xmlParser;
Document* xmlDoc = xmlParser.parse(xmlInput, xmlFilename);
if (!xmlDoc) {
String err("error reading XML document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
return;
}
//-- Read in XSL document
String href;
String errMsg;
getHrefFromStylesheetPI(*xmlDoc, href);
istream* xslInput = URIUtils::getInputStream(href,errMsg);
Document* xslDoc = 0;
if ( xslInput ) {
xslDoc = xmlParser.parse(*xslInput, href);
delete xslInput;
}
if (!xslDoc) {
String err("error reading XSL stylesheet document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
delete xmlDoc;
return;
}
Node* stylesheet;
String frag;
URIUtils::getFragmentIdentifier(href, frag);
if (!frag.isEmpty()) {
stylesheet = xslDoc->getElementById(frag);
if (!stylesheet) {
String err("unable to get fragment");
notifyError(err, ErrorObserver::FATAL);
delete xmlDoc;
delete xslDoc;
return;
}
}
else {
stylesheet = xslDoc;
}
process(*xmlDoc, *stylesheet, out);
delete xmlDoc;
delete xslDoc;
} //-- process
/**
* Reads an XML Document from the given XML input stream, and
* processes the document using the XSL document derived from
* the given XSL input stream.
* The result tree is printed to the given ostream argument,
* will not close the ostream argument
**/
void XSLTProcessor::process
(istream& xmlInput, String& xmlFilename,
istream& xslInput, String& xslFilename,
ostream& out)
{
//-- read in XML Document
XMLParser xmlParser;
Document* xmlDoc = xmlParser.parse(xmlInput, xmlFilename);
if (!xmlDoc) {
String err("error reading XML document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
return;
}
//-- read in XSL Document
Document* xslDoc = xmlParser.parse(xslInput, xslFilename);
if (!xslDoc) {
String err("error reading XSL stylesheet document: ");
err.append(xmlParser.getErrorString());
notifyError(err, ErrorObserver::FATAL);
delete xmlDoc;
return;
}
process(*xmlDoc, *xslDoc, out);
delete xmlDoc;
delete xslDoc;
} //-- process
// XXX
// XXX Standalone only code. This should move to txStandaloneXSLTProcessor
// XXX END
#endif // ifdef TX_EXE
//-------------------/
//- Private Methods -/
//-------------------/
void XSLTProcessor::bindVariable
(String& name, ExprResult* value, MBool allowShadowing, ProcessorState* ps)
{
NamedMap* varSet = (NamedMap*)ps->getVariableSetStack()->peek();
//-- check for duplicate variable names
VariableBinding* current = (VariableBinding*) varSet->get(name);
VariableBinding* binding = 0;
if (current) {
binding = current;
if (current->isShadowingAllowed() ) {
current->setShadowValue(value);
}
else {
//-- error cannot rebind variables
String err("cannot rebind variables: ");
err.append(name);
err.append(" already exists in this scope.");
notifyError(err);
}
}
else {
binding = new VariableBinding(name, value);
varSet->put((const String&)name, binding);
}
if ( allowShadowing ) binding->allowShadowing();
else binding->disallowShadowing();
} //-- bindVariable
/**
* Returns the type of Element represented by the given name
* @return the XSLType represented by the given element name
**/
short XSLTProcessor::getElementType(Element* aElement, ProcessorState* aPs)
{
PRInt32 nsID = aElement->getNamespaceID();
if (nsID != kNameSpaceID_XSLT)
return XSLType::LITERAL;
txAtom* nodeName;
if (!aElement->getLocalName(&nodeName) || !nodeName)
return 0;
String name;
TX_GET_ATOM_STRING(nodeName, name);
TX_RELEASE_ATOM(nodeName);
XSLType* xslType = (XSLType*)xslTypes.get(name);
if (!xslType)
// ErrorReport: unknown element in the XSLT namespace
return 0;
return xslType->type;
}
/**
* Notifies all registered ErrorObservers of the given error
**/
void XSLTProcessor::notifyError(const char* errorMessage) {
String err(errorMessage);
notifyError(err, ErrorObserver::NORMAL);
} //-- notifyError
/**
* Notifies all registered ErrorObservers of the given error
**/
void XSLTProcessor::notifyError(String& errorMessage) {
notifyError(errorMessage, ErrorObserver::NORMAL);
} //-- notifyError
/**
* Notifies all registered ErrorObservers of the given error
**/
void XSLTProcessor::notifyError(String& errorMessage, ErrorObserver::ErrorLevel level) {
ListIterator* iter = errorObservers.iterator();
//-- send fatal errors to default observer if no error obersvers
//-- have been registered
if ((!iter->hasNext()) && (level == ErrorObserver::FATAL)) {
fatalObserver.recieveError(errorMessage, level);
}
while ( iter->hasNext() ) {
ErrorObserver* observer = (ErrorObserver*)iter->next();
observer->recieveError(errorMessage, level);
}
delete iter;
} //-- notifyError
void XSLTProcessor::process(Node* node,
const String& mode,
ProcessorState* ps) {
if (!node)
return;
ProcessorState::ImportFrame *frame;
Node* xslTemplate = ps->findTemplate(node, mode, &frame);
processMatchedTemplate(xslTemplate, node, 0, NULL_STRING, frame, ps);
} //-- process
void XSLTProcessor::processAction(Node* aNode,
Node* aXSLTAction,
ProcessorState* aPs)
{
NS_ASSERTION(aXSLTAction, "We need an action to process.");
if (!aXSLTAction)
return;
Document* resultDoc = aPs->getResultDocument();
short nodeType = aXSLTAction->getNodeType();
// Handle text nodes
if (nodeType == Node::TEXT_NODE ||
nodeType == Node::CDATA_SECTION_NODE) {
const String& textValue = aXSLTAction->getNodeValue();
if (!aPs->isXSLStripSpaceAllowed(aXSLTAction) ||
!XMLUtils::shouldStripTextnode(textValue)) {
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->characters(textValue);
}
return;
}
// Handle element nodes
if (nodeType == Node::ELEMENT_NODE) {
Expr* expr = 0;
Element* actionElement = (Element*)aXSLTAction;
switch (getElementType(actionElement, aPs)) {
// xsl:apply-imports
case XSLType::APPLY_IMPORTS:
{
ProcessorState::TemplateRule* curr;
Node* xslTemplate;
ProcessorState::ImportFrame *frame;
curr = aPs->getCurrentTemplateRule();
if (!curr) {
String err("apply-imports not allowed here");
aPs->recieveError(err);
break;
}
xslTemplate = aPs->findTemplate(aNode, *curr->mMode,
curr->mFrame, &frame);
processMatchedTemplate(xslTemplate, aNode, curr->mParams,
*curr->mMode, frame, aPs);
break;
}
// xsl:apply-templates
case XSLType::APPLY_TEMPLATES:
{
if (actionElement->hasAttr(txXSLTAtoms::select,
kNameSpaceID_None))
expr = aPs->getExpr(actionElement,
ProcessorState::SelectAttr);
else
expr = mNodeExpr;
if (!expr)
break;
ExprResult* exprResult = expr->evaluate(aNode, aPs);
if (!exprResult)
break;
if (exprResult->getResultType() == ExprResult::NODESET) {
NodeSet* nodeSet = (NodeSet*)exprResult;
//-- push nodeSet onto context stack
aPs->getNodeSetStack()->push(nodeSet);
// Look for xsl:sort elements
txNodeSorter sorter(aPs);
Node* child = actionElement->getFirstChild();
while (child) {
if ((child->getNodeType() == Node::ELEMENT_NODE) &&
(getElementType((Element*)child, aPs) == XSLType::SORT)) {
sorter.addSortElement((Element*)child, aNode);
}
child = child->getNextSibling();
}
sorter.sortNodeSet(nodeSet);
// Process xsl:with-param elements
NamedMap* actualParams = processParameters(actionElement, aNode, aPs);
String mode;
actionElement->getAttr(txXSLTAtoms::mode,
kNameSpaceID_None, mode);
for (int i = 0; i < nodeSet->size(); i++) {
ProcessorState::ImportFrame *frame;
Node* currNode = nodeSet->get(i);
Node* xslTemplate;
xslTemplate = aPs->findTemplate(currNode, mode, &frame);
processMatchedTemplate(xslTemplate, currNode,
actualParams, mode, frame, aPs);
}
//-- remove nodeSet from context stack
aPs->getNodeSetStack()->pop();
delete actualParams;
}
else {
notifyError("error processing apply-templates");
}
//-- clean up
delete exprResult;
break;
}
// xsl:attribute
case XSLType::ATTRIBUTE:
{
String nameAttr;
if (!actionElement->getAttr(txXSLTAtoms::name,
kNameSpaceID_None, nameAttr)) {
notifyError("missing required name attribute for xsl:attribute");
break;
}
// Process name as an AttributeValueTemplate
String name;
aPs->processAttrValueTemplate(nameAttr, aNode, name);
// Check name validity (must be valid QName and not xmlns)
if (!XMLUtils::isValidQName(name)) {
String err("error processing xsl:attribute, ");
err.append(name);
err.append(" is not a valid QName.");
notifyError(err);
break;
}
txAtom* nameAtom = TX_GET_ATOM(name);
if (nameAtom == txXMLAtoms::xmlns) {
TX_RELEASE_ATOM(nameAtom);
String err("error processing xsl:attribute, name is xmlns.");
notifyError(err);
break;
}
TX_IF_RELEASE_ATOM(nameAtom);
// Determine namespace URI from the namespace attribute or
// from the prefix of the name (using the xslt action element).
String resultNs;
PRInt32 resultNsID = kNameSpaceID_None;
if (actionElement->getAttr(txXSLTAtoms::_namespace, kNameSpaceID_None,
resultNs)) {
String nsURI;
aPs->processAttrValueTemplate(resultNs, aNode, nsURI);
resultNsID = resultDoc->namespaceURIToID(nsURI);
}
else {
String prefix;
XMLUtils::getPrefix(name, prefix);
txAtom* prefixAtom = TX_GET_ATOM(prefix);
if (prefixAtom != txXMLAtoms::_empty) {
if (prefixAtom != txXMLAtoms::xmlns)
resultNsID = actionElement->lookupNamespaceID(prefixAtom);
else
// Cut xmlns: (6 characters)
name.deleteChars(0, 6);
}
TX_IF_RELEASE_ATOM(prefixAtom);
}
// XXX Should verify that this is correct behaviour. Signal error too?
if (resultNsID == kNameSpaceID_Unknown)
break;
// Compute value
String value;
processChildrenAsValue(aNode, actionElement, aPs, MB_TRUE, value);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->attribute(name, resultNsID, value);
break;
}
// call-template
case XSLType::CALL_TEMPLATE:
{
String templateName;
if (actionElement->getAttr(txXSLTAtoms::name,
kNameSpaceID_None, templateName)) {
Element* xslTemplate = aPs->getNamedTemplate(templateName);
if ( xslTemplate ) {
NamedMap* actualParams = processParameters(actionElement, aNode, aPs);
processTemplate(aNode, xslTemplate, aPs, actualParams);
delete actualParams;
}
}
else {
notifyError("missing required name attribute for xsl:call-template");
}
break;
}
// xsl:choose
case XSLType::CHOOSE:
{
Node* tmp = actionElement->getFirstChild();
MBool caseFound = MB_FALSE;
Element* xslTemplate;
while (!caseFound && tmp) {
if (tmp->getNodeType() == Node::ELEMENT_NODE) {
xslTemplate = (Element*)tmp;
switch (getElementType(xslTemplate, aPs)) {
case XSLType::WHEN :
{
expr = aPs->getExpr(xslTemplate,
ProcessorState::TestAttr);
if (!expr)
break;
ExprResult* result = expr->evaluate(aNode, aPs);
if (result && result->booleanValue()) {
processChildren(aNode, xslTemplate, aPs);
caseFound = MB_TRUE;
}
delete result;
break;
}
case XSLType::OTHERWISE:
processChildren(aNode, xslTemplate, aPs);
caseFound = MB_TRUE;
break;
default: //-- invalid xsl:choose child
break;
}
}
tmp = tmp->getNextSibling();
} //-- end for-each child of xsl:choose
break;
}
// xsl:comment
case XSLType::COMMENT:
{
String value;
processChildrenAsValue(aNode, actionElement, aPs, MB_TRUE, value);
PRInt32 pos = 0;
PRInt32 length = value.length();
while ((pos = value.indexOf('-', pos)) != NOT_FOUND) {
++pos;
if ((pos == length) || (value.charAt(pos) == '-'))
value.insert(pos++, ' ');
}
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->comment(value);
break;
}
// xsl:copy
case XSLType::COPY:
{
xslCopy(aNode, actionElement, aPs);
break;
}
// xsl:copy-of
case XSLType::COPY_OF:
{
expr = aPs->getExpr(actionElement, ProcessorState::SelectAttr);
if (!expr)
break;
ExprResult* exprResult = expr->evaluate(aNode, aPs);
xslCopyOf(exprResult, aPs);
delete exprResult;
break;
}
// xsl:element
case XSLType::ELEMENT:
{
String nameAttr;
if (!actionElement->getAttr(txXSLTAtoms::name,
kNameSpaceID_None, nameAttr)) {
notifyError("missing required name attribute for xsl:element");
break;
}
// Process name as an AttributeValueTemplate
String name;
aPs->processAttrValueTemplate(nameAttr, aNode, name);
// Check name validity (must be valid QName and not xmlns)
if (!XMLUtils::isValidQName(name)) {
String err("error processing xsl:element, '");
err.append(name);
err.append("' is not a valid QName.");
notifyError(err);
// XXX We should processChildren without creating attributes or
// namespace nodes.
break;
}
// Determine namespace URI from the namespace attribute or
// from the prefix of the name (using the xslt action element).
String resultNs;
PRInt32 resultNsID;
if (actionElement->getAttr(txXSLTAtoms::_namespace, kNameSpaceID_None, resultNs)) {
String nsURI;
aPs->processAttrValueTemplate(resultNs, aNode, nsURI);
if (nsURI.isEmpty())
resultNsID = kNameSpaceID_None;
else
resultNsID = resultDoc->namespaceURIToID(nsURI);
}
else {
String prefix;
XMLUtils::getPrefix(name, prefix);
txAtom* prefixAtom = TX_GET_ATOM(prefix);
resultNsID = actionElement->lookupNamespaceID(prefixAtom);
TX_IF_RELEASE_ATOM(prefixAtom);
}
if (resultNsID == kNameSpaceID_Unknown) {
String err("error processing xsl:element, can't resolve prefix on'");
err.append(name);
err.append("'.");
notifyError(err);
// XXX We should processChildren without creating attributes or
// namespace nodes.
break;
}
startElement(aPs, name, resultNsID);
processAttributeSets(actionElement, aNode, aPs);
processChildren(aNode, actionElement, aPs);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->endElement(name, resultNsID);
break;
}
// xsl:for-each
case XSLType::FOR_EACH:
{
expr = aPs->getExpr(actionElement, ProcessorState::SelectAttr);
if (!expr)
break;
ExprResult* exprResult = expr->evaluate(aNode, aPs);
if (!exprResult)
break;
if (exprResult->getResultType() == ExprResult::NODESET) {
NodeSet* nodeSet = (NodeSet*)exprResult;
//-- push nodeSet onto context stack
aPs->getNodeSetStack()->push(nodeSet);
// Look for xsl:sort elements
txNodeSorter sorter(aPs);
Node* child = actionElement->getFirstChild();
while (child) {
int nodeType = child->getNodeType();
if (nodeType == Node::ELEMENT_NODE) {
if (getElementType((Element*)child, aPs) == XSLType::SORT) {
sorter.addSortElement((Element*)child, aNode);
}
else {
// xsl:sort must occur first
break;
}
}
else if ((nodeType == Node::TEXT_NODE ||
nodeType == Node::CDATA_SECTION_NODE) &&
!XMLUtils::isWhitespace(child->getNodeValue())) {
break;
}
child = child->getNextSibling();
}
sorter.sortNodeSet(nodeSet);
// Set current template to null
ProcessorState::TemplateRule *oldTemplate;
oldTemplate = aPs->getCurrentTemplateRule();
aPs->setCurrentTemplateRule(0);
for (int i = 0; i < nodeSet->size(); i++) {
Node* currNode = nodeSet->get(i);
aPs->pushCurrentNode(currNode);
processChildren(currNode, actionElement, aPs);
aPs->popCurrentNode();
}
aPs->setCurrentTemplateRule(oldTemplate);
// Remove nodeSet from context stack
aPs->getNodeSetStack()->pop();
}
else {
notifyError("error processing for-each");
}
//-- clean up exprResult
delete exprResult;
break;
}
// xsl:if
case XSLType::IF:
{
expr = aPs->getExpr(actionElement, ProcessorState::TestAttr);
if (!expr)
break;
ExprResult* exprResult = expr->evaluate(aNode, aPs);
if (!exprResult)
break;
if ( exprResult->booleanValue() ) {
processChildren(aNode, actionElement, aPs);
}
delete exprResult;
break;
}
// xsl:message
case XSLType::MESSAGE:
{
String message;
processChildrenAsValue(aNode, actionElement, aPs, MB_FALSE, message);
// We should add a MessageObserver class
#ifdef TX_EXE
cout << "xsl:message - "<< message << endl;
#else
nsresult rv;
nsCOMPtr<nsIConsoleService> consoleSvc =
do_GetService("@mozilla.org/consoleservice;1", &rv);
NS_ASSERTION(NS_SUCCEEDED(rv), "xsl:message couldn't get console service");
if (consoleSvc) {
nsAutoString logString(NS_LITERAL_STRING("xsl:message - "));
logString.Append(message.getConstNSString());
rv = consoleSvc->LogStringMessage(logString.get());
NS_ASSERTION(NS_SUCCEEDED(rv), "xsl:message couldn't log");
}
#endif
break;
}
// xsl:number
case XSLType::NUMBER:
{
String result;
Numbering::doNumbering(actionElement, result, aNode, aPs);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->characters(result);
break;
}
// xsl:param
case XSLType::PARAM:
{
// Ignore in this loop (already processed)
break;
}
// xsl:processing-instruction
case XSLType::PROC_INST:
{
String nameAttr;
if (!actionElement->getAttr(txXSLTAtoms::name,
kNameSpaceID_None, nameAttr)) {
String err("missing required name attribute for xsl:");
err.append(PROC_INST);
notifyError(err);
break;
}
// Process name as an AttributeValueTemplate
String name;
aPs->processAttrValueTemplate(nameAttr, aNode, name);
// Check name validity (must be valid NCName and a PITarget)
// XXX Need to check for NCName and PITarget
if (!XMLUtils::isValidQName(name)) {
String err("error processing xsl:");
err.append(PROC_INST);
err.append(", '");
err.append(name);
err.append("' is not a valid QName.");
notifyError(err);
}
// Compute value
String value;
processChildrenAsValue(aNode, actionElement, aPs, MB_TRUE, value);
XMLUtils::normalizePIValue(value);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->processingInstruction(name, value);
break;
}
// xsl:sort
case XSLType::SORT:
{
// Ignore in this loop
break;
}
// xsl:text
case XSLType::TEXT:
{
String data;
XMLDOMUtils::getNodeValue(actionElement, data);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
#ifdef TX_EXE
String aValue;
if ((mResultHandler == mOutputHandler) &&
actionElement->getAttr(txXSLTAtoms::disableOutputEscaping,
kNameSpaceID_None, aValue) &&
aValue.isEqual(YES_VALUE))
mOutputHandler->charactersNoOutputEscaping(data);
else
mResultHandler->characters(data);
#else
mResultHandler->characters(data);
#endif
break;
}
//-- xsl:value-of
case XSLType::VALUE_OF :
{
expr = aPs->getExpr(actionElement, ProcessorState::SelectAttr);
if (!expr)
break;
ExprResult* exprResult = expr->evaluate(aNode, aPs);
String value;
if (!exprResult) {
notifyError("null ExprResult");
break;
}
exprResult->stringValue(value);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
#ifdef TX_EXE
String aValue;
if ((mResultHandler == mOutputHandler) &&
actionElement->getAttr(txXSLTAtoms::disableOutputEscaping,
kNameSpaceID_None, aValue) &&
aValue.isEqual(YES_VALUE))
mOutputHandler->charactersNoOutputEscaping(value);
else
mResultHandler->characters(value);
#else
mResultHandler->characters(value);
#endif
delete exprResult;
break;
}
// xsl:variable
case XSLType::VARIABLE:
{
String name;
if (!actionElement->getAttr(txXSLTAtoms::name,
kNameSpaceID_None, name)) {
notifyError("missing required name attribute for xsl:variable");
break;
}
ExprResult* exprResult = processVariable(aNode, actionElement, aPs);
bindVariable(name, exprResult, MB_FALSE, aPs);
break;
}
// Literal result element
default:
{
// XXX TODO Check for excluded namespaces and aliased namespaces (element and attributes)
PRInt32 nsID = aXSLTAction->getNamespaceID();
const String& nodeName = aXSLTAction->getNodeName();
startElement(aPs, nodeName, nsID);
processAttributeSets(actionElement, aNode, aPs);
// Handle attributes
NamedNodeMap* atts = actionElement->getAttributes();
if (atts) {
// Process all non XSLT attributes
PRUint32 i;
for (i = 0; i < atts->getLength(); ++i) {
Attr* attr = (Attr*)atts->item(i);
if (attr->getNamespaceID() == kNameSpaceID_XSLT)
continue;
// Process Attribute Value Templates
String value;
aPs->processAttrValueTemplate(attr->getValue(), aNode, value);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->attribute(attr->getName(), attr->getNamespaceID(), value);
}
}
// Process children
processChildren(aNode, actionElement, aPs);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->endElement(nodeName, nsID);
break;
}
}
}
}
/**
* Processes the attribute sets specified in the use-attribute-sets attribute
* of the element specified in aElement
**/
void XSLTProcessor::processAttributeSets(Element* aElement, Node* aNode, ProcessorState* aPs)
{
String names;
PRInt32 namespaceID;
if (aElement->getNamespaceID() == kNameSpaceID_XSLT)
namespaceID = kNameSpaceID_None;
else
namespaceID = kNameSpaceID_XSLT;
if (!aElement->getAttr(txXSLTAtoms::useAttributeSets, namespaceID, names) || names.isEmpty())
return;
// Split names
txTokenizer tokenizer(names);
String name;
while (tokenizer.hasMoreTokens()) {
tokenizer.nextToken(name);
StackIterator *attributeSets = mAttributeSetStack.iterator();
NS_ASSERTION(attributeSets, "Out of memory");
if (!attributeSets)
return;
while (attributeSets->hasNext()) {
String* test = (String*)attributeSets->next();
if (test->isEqual(name))
return;
}
delete attributeSets;
NodeSet* attSet = aPs->getAttributeSet(name);
if (attSet) {
int i;
//-- issue: we still need to handle the following fix cleaner, since
//-- attribute sets are merged, a different parent could exist
//-- for different xsl:attribute nodes. I will probably create
//-- an AttributeSet object, which will handle this case better. - Keith V.
if (attSet->size() > 0) {
mAttributeSetStack.push(&name);
Element* parent = (Element*) attSet->get(0)->getXPathParent();
processAttributeSets(parent, aNode, aPs);
mAttributeSetStack.pop();
}
for (i = 0; i < attSet->size(); i++)
processAction(aNode, attSet->get(i), aPs);
delete attSet;
}
}
} //-- processAttributeSets
/**
* Processes the xsl:with-param child elements of the given xsl action.
* A VariableBinding is created for each actual parameter, and
* added to the result NamedMap. At this point, we do not care
* whether the actual parameter matches a formal parameter of the template
* or not.
* @param xslAction the action node that takes parameters (xsl:call-template
* or xsl:apply-templates
* @param context the current context node
* @ps the current ProcessorState
* @return a NamedMap of variable bindings
**/
NamedMap* XSLTProcessor::processParameters(Element* xslAction, Node* context, ProcessorState* ps)
{
NamedMap* params = new NamedMap();
if (!xslAction || !params)
return params;
params->setObjectDeletion(MB_TRUE);
//-- handle xsl:with-param elements
Node* tmpNode = xslAction->getFirstChild();
while (tmpNode) {
int nodeType = tmpNode->getNodeType();
if ( nodeType == Node::ELEMENT_NODE ) {
Element* action = (Element*)tmpNode;
short xslType = getElementType(action, ps);
if ( xslType == XSLType::WITH_PARAM ) {
String name;
if (!action->getAttr(txXSLTAtoms::name,
kNameSpaceID_None, name)) {
notifyError("missing required name attribute for xsl:with-param");
}
else {
ExprResult* exprResult = processVariable(context, action, ps);
if (params->get(name)) {
//-- error cannot rebind parameters
String err("value for parameter '");
err.append(name);
err.append("' specified more than once.");
notifyError(err);
}
else {
VariableBinding* binding = new VariableBinding(name, exprResult);
params->put((const String&)name, binding);
}
}
}
}
tmpNode = tmpNode->getNextSibling();
}
return params;
} //-- processParameters
/**
* Processes the children of the specified element using the given context node
* and ProcessorState
* @param node the context node
* @param xslElement the template to be processed. Must be != NULL
* @param ps the current ProcessorState
**/
void XSLTProcessor::processChildren(Node* node, Element* xslElement, ProcessorState* ps) {
NS_ASSERTION(xslElement,"xslElement is NULL in call to XSLTProcessor::processChildren!");
Stack* bindings = ps->getVariableSetStack();
NamedMap localBindings;
localBindings.setObjectDeletion(MB_TRUE);
bindings->push(&localBindings);
Node* child = xslElement->getFirstChild();
while (child) {
processAction(node, child, ps);
child = child->getNextSibling();
}
bindings->pop();
} //-- processChildren
void
XSLTProcessor::processChildrenAsValue(Node* aNode,
Element* aElement,
ProcessorState* aPs,
MBool aOnlyText,
String& aValue)
{
txXMLEventHandler* previousHandler = mResultHandler;
txTextHandler valueHandler(aValue, aOnlyText);
mResultHandler = &valueHandler;
processChildren(aNode, aElement, aPs);
mResultHandler = previousHandler;
}
/**
* Processes the specified template using the given context, ProcessorState, and actual
* parameters.
* @param xslTemplate the template to be processed
* @ps the current ProcessorState
* @param params a NamedMap of variable bindings that contain the actual parameters for
* the template. Parameters that do not match a formal parameter of the template (i.e.
* there is no corresponding xsl:param in the template definition) will be discarded.
**/
void XSLTProcessor::processTemplate(Node* node, Node* xslTemplate, ProcessorState* ps, NamedMap* params) {
NS_ASSERTION(xslTemplate, "xslTemplate is NULL in call to XSLTProcessor::processTemplate!");
Stack* bindings = ps->getVariableSetStack();
NamedMap localBindings;
localBindings.setObjectDeletion(MB_TRUE);
bindings->push(&localBindings);
processTemplateParams(xslTemplate, node, ps, params);
Node* tmp = xslTemplate->getFirstChild();
while (tmp) {
processAction(node,tmp,ps);
tmp = tmp->getNextSibling();
}
if (params) {
StringList* keys = params->keys();
if (keys) {
StringListIterator keyIter(keys);
String* key;
while((key = keyIter.next())) {
VariableBinding *var, *param;
var = (VariableBinding*)localBindings.get(*key);
param = (VariableBinding*)params->get(*key);
if (var && var->getValue() == param->getValue()) {
// Don't delete the contained ExprResult since it's
// not ours
var->setValue(0);
}
}
}
else {
// out of memory so we can't get the keys
// don't delete any variables since it's better we leak then
// crash
localBindings.setObjectDeletion(MB_FALSE);
}
delete keys;
}
bindings->pop();
} //-- processTemplate
void XSLTProcessor::processMatchedTemplate(Node* aXslTemplate,
Node* aNode,
NamedMap* aParams,
const String& aMode,
ProcessorState::ImportFrame* aFrame,
ProcessorState* aPs)
{
if (aXslTemplate) {
ProcessorState::TemplateRule *oldTemplate, newTemplate;
oldTemplate = aPs->getCurrentTemplateRule();
newTemplate.mFrame = aFrame;
newTemplate.mMode = &aMode;
newTemplate.mParams = aParams;
aPs->setCurrentTemplateRule(&newTemplate);
aPs->pushCurrentNode(aNode);
processTemplate(aNode, aXslTemplate, aPs, aParams);
aPs->popCurrentNode();
aPs->setCurrentTemplateRule(oldTemplate);
}
else {
processDefaultTemplate(aNode, aPs, aMode);
}
}
/**
* Invokes the default template for the specified node
* @param node context node
* @param ps current ProcessorState
* @param mode template mode
**/
void XSLTProcessor::processDefaultTemplate(Node* node,
ProcessorState* ps,
const String& mode)
{
NS_ASSERTION(node, "context node is NULL in call to XSLTProcessor::processTemplate!");
switch(node->getNodeType())
{
case Node::ELEMENT_NODE :
case Node::DOCUMENT_NODE :
{
if (!mNodeExpr)
break;
ExprResult* exprResult = mNodeExpr->evaluate(node, ps);
if (!exprResult ||
exprResult->getResultType() != ExprResult::NODESET) {
notifyError("None-nodeset returned while processing default template");
delete exprResult;
return;
}
NodeSet* nodeSet = (NodeSet*)exprResult;
//-- push nodeSet onto context stack
ps->getNodeSetStack()->push(nodeSet);
for (int i = 0; i < nodeSet->size(); i++) {
Node* currNode = nodeSet->get(i);
ProcessorState::ImportFrame *frame;
Node* xslTemplate = ps->findTemplate(currNode, mode, &frame);
processMatchedTemplate(xslTemplate, currNode, 0, mode, frame,
ps);
}
//-- remove nodeSet from context stack
ps->getNodeSetStack()->pop();
delete exprResult;
break;
}
case Node::ATTRIBUTE_NODE :
case Node::TEXT_NODE :
case Node::CDATA_SECTION_NODE :
{
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->characters(node->getNodeValue());
break;
}
default:
// on all other nodetypes (including namespace nodes)
// we do nothing
break;
}
} //-- processDefaultTemplate
/**
* Builds the initial bindings for the template. Formal parameters (xsl:param) that
* have a corresponding binding in actualParams are bound to the actual parameter value,
* otherwise to their default value. Actual parameters that do not match any formal
* parameter are discarded.
* @param xslTemplate the template node
* @param context the current context node
* @param ps the current ProcessorState
* @param actualParams a NamedMap of variable bindings that contains the actual parameters
**/
void XSLTProcessor::processTemplateParams
(Node* xslTemplate, Node* context, ProcessorState* ps, NamedMap* actualParams)
{
if ( xslTemplate ) {
Node* tmpNode = xslTemplate->getFirstChild();
//-- handle params
while (tmpNode) {
int nodeType = tmpNode->getNodeType();
if ( nodeType == Node::ELEMENT_NODE ) {
Element* action = (Element*)tmpNode;
short xslType = getElementType(action, ps);
if ( xslType == XSLType::PARAM ) {
String name;
if (!action->getAttr(txXSLTAtoms::name,
kNameSpaceID_None, name)) {
notifyError("missing required name attribute for xsl:param");
}
else {
VariableBinding* binding = 0;
if (actualParams) {
binding = (VariableBinding*) actualParams->get((const String&)name);
}
if (binding) {
// the formal parameter has a corresponding actual parameter, use it
ExprResult* exprResult = binding->getValue();
bindVariable(name, exprResult, MB_FALSE, ps);
}
else {
// no actual param, use default
ExprResult* exprResult = processVariable(context, action, ps);
bindVariable(name, exprResult, MB_FALSE, ps);
}
}
}
else break;
}
else if (nodeType == Node::TEXT_NODE ||
nodeType == Node::CDATA_SECTION_NODE) {
if (!XMLUtils::isWhitespace(tmpNode->getNodeValue()))
break;
}
tmpNode = tmpNode->getNextSibling();
}
}
} //-- processTemplateParams
/**
* processes the xslVariable parameter as an xsl:variable using the given context,
* and ProcessorState.
* If the xslTemplate contains an "expr" attribute, the attribute is evaluated
* as an Expression and the ExprResult is returned. Otherwise the xslVariable is
* is processed as a template, and it's result is converted into an ExprResult
* @return an ExprResult
**/
ExprResult* XSLTProcessor::processVariable
(Node* node, Element* xslVariable, ProcessorState* ps)
{
if ( !xslVariable ) {
return new StringResult("unable to process variable");
}
//-- check for select attribute
if (xslVariable->hasAttr(txXSLTAtoms::select, kNameSpaceID_None)) {
Expr* expr = ps->getExpr(xslVariable, ProcessorState::SelectAttr);
if (!expr)
return new StringResult("unable to process variable");
return expr->evaluate(node, ps);
}
else if (xslVariable->hasChildNodes()) {
txResultTreeFragment* rtf = new txResultTreeFragment();
if (!rtf)
// XXX ErrorReport: Out of memory
return 0;
txXMLEventHandler* previousHandler = mResultHandler;
txRtfHandler rtfHandler(ps->getResultDocument(), rtf);
mResultHandler = &rtfHandler;
processChildren(node, xslVariable, ps);
//NS_ASSERTION(previousHandler, "Setting mResultHandler to NULL!");
mResultHandler = previousHandler;
return rtf;
}
else {
return new StringResult("");
}
} //-- processVariable
void XSLTProcessor::startTransform(Node* aNode, ProcessorState* aPs)
{
mHaveDocumentElement = MB_FALSE;
mOutputHandler->startDocument();
process(aNode, NULL_STRING, aPs);
mOutputHandler->endDocument();
}
MBool XSLTProcessor::initializeHandlers(ProcessorState* aPs)
{
txListIterator frameIter(aPs->getImportFrames());
ProcessorState::ImportFrame* frame;
txOutputFormat* outputFormat = aPs->getOutputFormat();
while ((frame = (ProcessorState::ImportFrame*)frameIter.next()))
outputFormat->merge(frame->mOutputFormat);
delete mOutputHandler;
#ifdef TX_EXE
switch (outputFormat->mMethod) {
case eMethodNotSet:
case eXMLOutput:
{
mOutputHandler = new txXMLOutput();
break;
}
case eHTMLOutput:
{
mOutputHandler = new txHTMLOutput();
break;
}
case eTextOutput:
{
mOutputHandler = new txTextOutput();
break;
}
}
#else
switch (outputFormat->mMethod) {
case eMethodNotSet:
case eXMLOutput:
case eHTMLOutput:
{
mOutputHandler = new txMozillaXMLOutput();
break;
}
case eTextOutput:
{
mOutputHandler = new txMozillaTextOutput();
break;
}
}
#endif
mResultHandler = mOutputHandler;
if (!mOutputHandler)
return MB_FALSE;
mOutputHandler->setOutputFormat(outputFormat);
return MB_TRUE;
}
/**
* Performs the xsl:copy action as specified in the XSLT specification
*/
void XSLTProcessor::xslCopy(Node* aNode, Element* aAction, ProcessorState* aPs)
{
if (!aNode)
return;
switch (aNode->getNodeType()) {
case Node::DOCUMENT_NODE:
{
// Just process children
processChildren(aNode, aAction, aPs);
break;
}
case Node::ELEMENT_NODE:
{
Element* element = (Element*)aNode;
String nodeName = element->getNodeName();
PRInt32 nsID = element->getNamespaceID();
startElement(aPs, nodeName, nsID);
// XXX copy namespace attributes once we have them
processAttributeSets(aAction, aNode, aPs);
processChildren(aNode, aAction, aPs);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->endElement(nodeName, nsID);
break;
}
default:
{
copyNode(aNode, aPs);
}
}
}
/**
* Performs the xsl:copy-of action as specified in the XSLT specification
*/
void XSLTProcessor::xslCopyOf(ExprResult* aExprResult, ProcessorState* aPs)
{
if (!aExprResult)
return;
switch (aExprResult->getResultType()) {
case ExprResult::NODESET:
{
NodeSet* nodes = (NodeSet*)aExprResult;
int i;
for (i = 0; i < nodes->size(); i++) {
Node* node = nodes->get(i);
copyNode(node, aPs);
}
break;
}
default:
{
String value;
aExprResult->stringValue(value);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->characters(value);
}
}
}
/**
* Copy a node. For document nodes and document fragments, copy the children.
*/
void XSLTProcessor::copyNode(Node* aNode, ProcessorState* aPs)
{
if (!aNode)
return;
switch (aNode->getNodeType()) {
case Node::ATTRIBUTE_NODE:
{
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->attribute(aNode->getNodeName(), aNode->getNamespaceID(),
aNode->getNodeValue());
break;
}
case Node::COMMENT_NODE:
{
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->comment(((Comment*)aNode)->getData());
break;
}
case Node::DOCUMENT_NODE:
case Node::DOCUMENT_FRAGMENT_NODE:
{
// Copy children
Node* child = aNode->getFirstChild();
while (child) {
copyNode(child, aPs);
child = child->getNextSibling();
}
break;
}
case Node::ELEMENT_NODE:
{
Element* element = (Element*)aNode;
const String& name = element->getNodeName();
PRInt32 nsID = element->getNamespaceID();
startElement(aPs, name, nsID);
// Copy attributes
NamedNodeMap* attList = element->getAttributes();
if (attList) {
PRUint32 i = 0;
for (i = 0; i < attList->getLength(); i++) {
Attr* attr = (Attr*)attList->item(i);
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->attribute(attr->getName(), attr->getNamespaceID(),
attr->getValue());
}
}
// Copy children
Node* child = element->getFirstChild();
while (child) {
copyNode(child, aPs);
child = child->getNextSibling();
}
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->endElement(name, nsID);
break;
}
case Node::PROCESSING_INSTRUCTION_NODE:
{
ProcessingInstruction* pi = (ProcessingInstruction*)aNode;
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->processingInstruction(pi->getTarget(), pi->getData());
break;
}
case Node::TEXT_NODE:
case Node::CDATA_SECTION_NODE:
{
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->characters(((CharacterData*)aNode)->getData());
break;
}
}
}
void
XSLTProcessor::startElement(ProcessorState* aPs, const String& aName, const PRInt32 aNsID)
{
if (!mHaveDocumentElement && (mResultHandler == mOutputHandler)) {
txOutputFormat* format = aPs->getOutputFormat();
// XXX Should check for whitespace-only sibling text nodes
if ((format->mMethod == eMethodNotSet)
&& (aNsID == kNameSpaceID_None)
&& aName.isEqualIgnoreCase("html")) {
// Switch to html output mode according to the XSLT spec.
format->mMethod = eHTMLOutput;
#ifdef TX_EXE
ostream* out;
mOutputHandler->getOutputStream(&out);
delete mOutputHandler;
mOutputHandler = new txHTMLOutput();
NS_ASSERTION(mOutputHandler, "Setting mResultHandler to NULL!");
mOutputHandler->setOutputStream(out);
mResultHandler = mOutputHandler;
#endif
mOutputHandler->setOutputFormat(format);
}
mHaveDocumentElement = MB_TRUE;
}
NS_ASSERTION(mResultHandler, "mResultHandler must not be NULL!");
mResultHandler->startElement(aName, aNsID);
}
#ifndef TX_EXE
// XXX START
// XXX Mozilla module only code. This should move to txMozillaXSLTProcessor
// XXX
NS_IMETHODIMP
XSLTProcessor::TransformDocument(nsIDOMNode* aSourceDOM,
nsIDOMNode* aStyleDOM,
nsIDOMDocument* aOutputDoc,
nsIObserver* aObserver)
{
// We need source and result documents but no stylesheet.
NS_ENSURE_ARG(aSourceDOM);
NS_ENSURE_ARG(aOutputDoc);
// Create wrapper for the source document.
nsCOMPtr<nsIDOMDocument> sourceDOMDocument;
aSourceDOM->GetOwnerDocument(getter_AddRefs(sourceDOMDocument));
if (!sourceDOMDocument)
sourceDOMDocument = do_QueryInterface(aSourceDOM);
NS_ENSURE_TRUE(sourceDOMDocument, NS_ERROR_FAILURE);
Document sourceDocument(sourceDOMDocument);
Node* sourceNode = sourceDocument.createWrapper(aSourceDOM);
NS_ENSURE_TRUE(sourceNode, NS_ERROR_FAILURE);
// Create wrapper for the style document.
nsCOMPtr<nsIDOMDocument> styleDOMDocument;
aStyleDOM->GetOwnerDocument(getter_AddRefs(styleDOMDocument));
if (!styleDOMDocument)
styleDOMDocument = do_QueryInterface(aStyleDOM);
Document xslDocument(styleDOMDocument);
// Create wrapper for the output document.
mDocument = do_QueryInterface(aOutputDoc);
NS_ENSURE_TRUE(mDocument, NS_ERROR_FAILURE);
Document resultDocument(aOutputDoc);
// Reset the output document.
nsCOMPtr<nsILoadGroup> loadGroup;
nsCOMPtr<nsIChannel> channel;
nsCOMPtr<nsIDocument> inputDocument = do_QueryInterface(sourceDOMDocument);
if (inputDocument) {
inputDocument->GetDocumentLoadGroup(getter_AddRefs(loadGroup));
nsCOMPtr<nsIIOService> serv(do_GetService(NS_IOSERVICE_CONTRACTID));
if (serv) {
// Create a temporary channel to get nsIDocument->Reset to
// do the right thing. We want the output document to get
// much of the input document's characteristics.
nsCOMPtr<nsIURI> docURL;
inputDocument->GetDocumentURL(getter_AddRefs(docURL));
serv->NewChannelFromURI(docURL, getter_AddRefs(channel));
}
}
mDocument->Reset(channel, loadGroup);
// Start of block to ensure the destruction of the ProcessorState
// before the destruction of the documents.
{
// Create a new ProcessorState
ProcessorState ps(&sourceDocument, &xslDocument, &resultDocument);
// XXX Need to add error observers
// Set current node and nodeset.
NodeSet nodeSet(&sourceDocument);
ps.pushCurrentNode(&sourceDocument);
ps.getNodeSetStack()->push(&nodeSet);
// Index templates and process top level xsl elements
ListIterator importFrame(ps.getImportFrames());
importFrame.addAfter(new ProcessorState::ImportFrame(0));
if (!importFrame.next())
return NS_ERROR_OUT_OF_MEMORY;
nsCOMPtr<nsIDOMDocument> styleDoc = do_QueryInterface(aStyleDOM);
if (styleDoc) {
processStylesheet(&sourceDocument, &xslDocument, &importFrame,
&ps);
}
else {
nsCOMPtr<nsIDOMElement> styleElem = do_QueryInterface(aStyleDOM);
NS_ENSURE_TRUE(styleElem, NS_ERROR_FAILURE);
Element* element = xslDocument.createElement(styleElem);
NS_ENSURE_TRUE(element, NS_ERROR_OUT_OF_MEMORY);
processTopLevel(&sourceDocument, element, &importFrame, &ps);
}
initializeHandlers(&ps);
if (mOutputHandler) {
mOutputHandler->setOutputDocument(aOutputDoc);
if (!aObserver)
// Don't load stylesheets, we can't notify the caller when
// they're loaded.
mOutputHandler->disableStylesheetLoad();
}
// Get the script loader of the result document.
nsCOMPtr<nsIScriptLoader> loader;
mDocument->GetScriptLoader(getter_AddRefs(loader));
if (loader) {
if (aObserver)
loader->AddObserver(this);
else
// Don't load scripts, we can't notify the caller when they're loaded.
loader->Suspend();
}
// Process root of XML source document
startTransform(sourceNode, &ps);
}
// End of block to ensure the destruction of the ProcessorState
// before the destruction of the documents.
mObserver = aObserver;
SignalTransformEnd();
return NS_OK;
}
NS_IMETHODIMP
XSLTProcessor::ScriptAvailable(nsresult aResult,
nsIDOMHTMLScriptElement *aElement,
PRBool aIsInline,
PRBool aWasPending,
nsIURI *aURI,
PRInt32 aLineNo,
const nsAString& aScript)
{
if (NS_FAILED(aResult) && mOutputHandler) {
mOutputHandler->removeScriptElement(aElement);
SignalTransformEnd();
}
return NS_OK;
}
NS_IMETHODIMP
XSLTProcessor::ScriptEvaluated(nsresult aResult,
nsIDOMHTMLScriptElement *aElement,
PRBool aIsInline,
PRBool aWasPending)
{
if (mOutputHandler) {
mOutputHandler->removeScriptElement(aElement);
SignalTransformEnd();
}
return NS_OK;
}
void
XSLTProcessor::SignalTransformEnd()
{
if (!mObserver)
return;
if (!mOutputHandler || !mOutputHandler->isDone())
return;
nsCOMPtr<nsIScriptLoader> loader;
mDocument->GetScriptLoader(getter_AddRefs(loader));
if (loader)
loader->RemoveObserver(this);
mDocument = nsnull;
nsresult rv;
nsCOMPtr<nsIObserverService> anObserverService = do_GetService("@mozilla.org/observer-service;1", &rv);
if (NS_SUCCEEDED(rv)) {
nsCOMPtr<nsIContent> rootContent;
mOutputHandler->getRootContent(getter_AddRefs(rootContent));
anObserverService->AddObserver(mObserver, "xslt-done", PR_TRUE);
anObserverService->NotifyObservers(rootContent, "xslt-done", nsnull);
}
mObserver = nsnull;
}
// XXX
// XXX Mozilla module only code. This should move to txMozillaXSLTProcessor
// XXX END
#endif
XSLType::XSLType() {
this->type = LITERAL;
} //-- XSLType
XSLType::XSLType(const XSLType& xslType) {
this->type = xslType.type;
} //-- XSLType
XSLType::XSLType(short type) {
this->type = type;
} //-- XSLType