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xforms bug 258472 - Add the XPath functions needed for XForms, r=sicking,sr=peterv

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doronr%us.ibm.com 2005-01-27 23:09:54 +00:00
parent c4d30bcb1a
commit 38e86f26fd
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506
extensions/transformiix/source/xpath/XFormsFunctionCall.cpp Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* XFormsFunctionCall
* A representation of the XPath NodeSet funtions
*/
#include "FunctionLib.h"
#include "nsAutoPtr.h"
#include "txNodeSet.h"
#include "txAtoms.h"
#include "txIXPathContext.h"
#include "txTokenizer.h"
#include "XFormsFunctions.h"
#include <math.h>
#include "nsIDOMDocument.h"
#include "nsIDOMDocumentEvent.h"
#include "nsIDOMEvent.h"
#include "nsIDOMEventTarget.h"
#include "nsIDOMElement.h"
#include "nsIXFormsUtilityService.h"
#include "nsServiceManagerUtils.h" // needed for do_GetService?
#include "prprf.h"
/*
* Creates a XFormsFunctionCall of the given type
*/
XFormsFunctionCall::XFormsFunctionCall(XFormsFunctions aType, nsIDOMNode *aResolverNode)
: mType(aType)
, mResolverNode(aResolverNode)
{
}
/*
* Evaluates this Expr based on the given context node and processor state
* @param context the context node for evaluation of this Expr
* @param ps the ContextState containing the stack information needed
* for evaluation
* @return the result of the evaluation
*/
nsresult
XFormsFunctionCall::evaluate(txIEvalContext* aContext, txAExprResult** aResult)
{
*aResult = nsnull;
nsresult rv = NS_OK;
txListIterator iter(&params);
switch (mType) {
case AVG:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
nsRefPtr<txNodeSet> nodes;
nsresult rv = evaluateToNodeSet((Expr*)iter.next(), aContext,
getter_AddRefs(nodes));
NS_ENSURE_SUCCESS(rv, rv);
double res = 0;
PRInt32 i;
for (i = 0; i < nodes->size(); ++i) {
nsAutoString resultStr;
txXPathNodeUtils::appendNodeValue(nodes->get(i), resultStr);
res += Double::toDouble(resultStr);
}
if (i > 0) {
res = (res/i);
}
else {
res = Double::NaN;
}
return aContext->recycler()->getNumberResult(res, aResult);
}
case BOOLEANFROMSTRING:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
PRInt32 retvalue = -1;
nsAutoString booleanValue;
evaluateToString((Expr*)iter.next(), aContext, booleanValue);
aContext->recycler()->getBoolResult(
booleanValue.EqualsLiteral("1") ||
booleanValue.LowerCaseEqualsLiteral("true"),
aResult);
return NS_OK;
}
case COUNTNONEMPTY:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
nsRefPtr<txNodeSet> nodes;
nsresult rv = evaluateToNodeSet((Expr*)iter.next(), aContext,
getter_AddRefs(nodes));
NS_ENSURE_SUCCESS(rv, rv);
double res = 0, test = 0;
PRInt32 i, count=0;
for (i = 0; i < nodes->size(); ++i) {
nsAutoString resultStr;
txXPathNodeUtils::appendNodeValue(nodes->get(i), resultStr);
if (!resultStr.IsEmpty()) {
count++;
}
}
return aContext->recycler()->getNumberResult(count, aResult);
}
case DAYSFROMDATE:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
return NS_ERROR_NOT_IMPLEMENTED;
}
case IF:
{
if (!requireParams(3, 3, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
PRBool test;
nsAutoString valueToReturn;
test = evaluateToBoolean((Expr*)iter.next(), aContext);
// grab 'true' value to return
Expr *getvalue = (Expr*)iter.next();
if (!test) {
// grab 'false' value to return
getvalue = (Expr*)iter.next();
}
evaluateToString(getvalue, aContext, valueToReturn);
return aContext->recycler()->getStringResult(valueToReturn, aResult);
}
case INDEX:
{
// Given an element's id as the parameter, need to query the element and
// make sure that it is a xforms:repeat node. Given that, must query
// its index.
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
return NS_ERROR_NOT_IMPLEMENTED;
}
case INSTANCE:
{
nsresult rv;
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
nsRefPtr<txNodeSet> resultSet;
rv = aContext->recycler()->getNodeSet(getter_AddRefs(resultSet));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoString instanceId;
evaluateToString((Expr*)iter.next(), aContext, instanceId);
// here document is the XForms document
nsCOMPtr<nsIDOMDocument> document;
rv = mResolverNode->GetOwnerDocument(getter_AddRefs(document));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(document, NS_ERROR_NULL_POINTER);
nsCOMPtr<nsIDOMElement> instEle;
rv = document->GetElementById(instanceId, getter_AddRefs(instEle));
PRBool foundInstance = PR_FALSE;
nsAutoString localname, namespaceURI;
if (instEle) {
instEle->GetLocalName(localname);
instEle->GetNamespaceURI(namespaceURI);
if (localname.EqualsLiteral("instance") &&
namespaceURI.EqualsLiteral(NS_NAMESPACE_XFORMS)) {
foundInstance = PR_TRUE;
}
}
if (!foundInstance) {
// We didn't find an instance element with the given id. Return the
// empty result set.
*aResult = resultSet;
NS_ADDREF(*aResult);
return NS_OK;
}
// Make sure that this element is contained in the same
// model as the context node of the expression as per
// the XForms 1.0 spec.
// first step is to get the contextNode passed in to
// the evaluation
nsCOMPtr<nsIDOMNode> xfContextNode;
rv = txXPathNativeNode::getNode(aContext->getContextNode(),
getter_AddRefs(xfContextNode));
NS_ENSURE_SUCCESS(rv, rv);
// now see if the node we found (instEle) and the
// context node for the evaluation (xfContextNode) link
// back to the same model.
nsCOMPtr<nsIXFormsUtilityService>xformsService =
do_GetService("@mozilla.org/xforms-utility-service;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMNode> instNode, modelInstance;
instNode = do_QueryInterface(instEle);
rv = xformsService->GetModelFromNode(instNode,
getter_AddRefs(modelInstance));
NS_ENSURE_SUCCESS(rv, rv);
PRBool modelContainsNode = PR_FALSE;
rv = xformsService->IsNodeAssocWithModel(xfContextNode,
modelInstance,
&modelContainsNode);
NS_ENSURE_SUCCESS(rv, rv);
if (modelContainsNode) {
// ok, we've found an instance node with the proper id
// that fulfills the requirement of being from the
// same model as the context node. Now we need to
// return a 'node-set containing just the root
// element node of the referenced instance data'.
// Wonderful.
nsCOMPtr<nsIDOMNode> instanceRoot;
rv = xformsService->GetInstanceDocumentRoot(
instanceId,
modelInstance,
getter_AddRefs(instanceRoot));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(instanceRoot, NS_ERROR_NULL_POINTER);
nsAutoPtr<txXPathNode> txNode(txXPathNativeNode::createXPathNode(instanceRoot));
if (txNode) {
resultSet->add(*txNode);
}
}
// XXX where we need to do the work
// if (walker.moveToElementById(instanceId)) {
// resultSet->add(walker.getCurrentPosition());
// }
*aResult = resultSet;
NS_ADDREF(*aResult);
return NS_OK;
}
case MAX:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
nsRefPtr<txNodeSet> nodes;
nsresult rv = evaluateToNodeSet((Expr*)iter.next(), aContext,
getter_AddRefs(nodes));
NS_ENSURE_SUCCESS(rv, rv);
double res = Double::NaN;
PRInt32 i;
for (i = 0; i < nodes->size(); ++i) {
double test;
nsAutoString resultStr;
txXPathNodeUtils::appendNodeValue(nodes->get(i), resultStr);
test = Double::toDouble(resultStr);
if (Double::isNaN(test)) {
res = Double::NaN;
break;
}
if (test > res || i == 0) {
res = test;
}
}
return aContext->recycler()->getNumberResult(res, aResult);
}
case MIN:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
nsRefPtr<txNodeSet> nodes;
nsresult rv = evaluateToNodeSet((Expr*)iter.next(), aContext,
getter_AddRefs(nodes));
NS_ENSURE_SUCCESS(rv, rv);
double res = Double::NaN;
PRInt32 i;
for (i = 0; i < nodes->size(); ++i) {
double test;
nsAutoString resultStr;
txXPathNodeUtils::appendNodeValue(nodes->get(i), resultStr);
test = Double::toDouble(resultStr);
if (Double::isNaN(test)) {
res = Double::NaN;
break;
}
if ((test < res) || (i==0)) {
res = test;
}
}
return aContext->recycler()->getNumberResult(res, aResult);
}
case MONTHS:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
return NS_ERROR_NOT_IMPLEMENTED;
}
case NOW:
{
if (!requireParams(0, 0, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
PRExplodedTime time;
char ctime[60];
PR_ExplodeTime(PR_Now(), PR_LocalTimeParameters, &time);
int gmtoffsethour = time.tm_params.tp_gmt_offset < 0 ?
-1*time.tm_params.tp_gmt_offset / 3600 :
time.tm_params.tp_gmt_offset / 3600;
int remainder = time.tm_params.tp_gmt_offset%3600;
int gmtoffsetminute = remainder ? remainder/60 : 00;
char zone_location[40];
const int zoneBufSize = sizeof(zone_location);
PR_snprintf(zone_location, zoneBufSize, "%c%02d:%02d\0",
time.tm_params.tp_gmt_offset < 0 ? '-' : '+',
gmtoffsethour, gmtoffsetminute);
PR_FormatTime(ctime, sizeof(ctime), "%Y-%m-%dT%H:%M:%S\0", &time);
nsString sTime = NS_ConvertASCIItoUTF16(ctime) + NS_ConvertASCIItoUTF16(zone_location);
return aContext->recycler()->getStringResult(sTime, aResult);
}
case PROPERTY:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
nsAutoString property;
evaluateToString((Expr*)iter.next(), aContext, property);
// This function can handle "version" and "conformance-level"
// which is all that the XForms 1.0 spec is worried about
if (property.Equals(NS_LITERAL_STRING("version")))
property.Assign(NS_LITERAL_STRING("1.0"));
else if (property.Equals(NS_LITERAL_STRING("conformance-level")))
property.Assign(NS_LITERAL_STRING("basic"));
return aContext->recycler()->getStringResult(property, aResult);
}
case SECONDS:
{
double dbl=0;
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
return NS_ERROR_NOT_IMPLEMENTED;
}
case SECONDSFROMDATETIME:
{
if (!requireParams(1, 1, aContext))
return NS_ERROR_XPATH_BAD_ARGUMENT_COUNT;
return NS_ERROR_NOT_IMPLEMENTED;
}
} /* switch() */
aContext->receiveError(NS_LITERAL_STRING("Internal error"),
NS_ERROR_UNEXPECTED);
return NS_ERROR_UNEXPECTED;
}
#ifdef TX_TO_STRING
nsresult
XFormsFunctionCall::getNameAtom(nsIAtom** aAtom)
{
switch (mType) {
case AVG:
{
*aAtom = txXPathAtoms::avg;
break;
}
case BOOLEANFROMSTRING:
{
*aAtom = txXPathAtoms::booleanFromString;
break;
}
case COUNTNONEMPTY:
{
*aAtom = txXPathAtoms::countNonEmpty;
break;
}
case DAYSFROMDATE:
{
*aAtom = txXPathAtoms::daysFromDate;
break;
}
case IF:
{
*aAtom = txXPathAtoms::ifFunc;
break;
}
case INDEX:
{
*aAtom = txXPathAtoms::index;
break;
}
case INSTANCE:
{
*aAtom = txXPathAtoms::instance;
break;
}
case MAX:
{
*aAtom = txXPathAtoms::max;
break;
}
case MIN:
{
*aAtom = txXPathAtoms::min;
break;
}
case MONTHS:
{
*aAtom = txXPathAtoms::months;
break;
}
case NOW:
{
*aAtom = txXPathAtoms::now;
break;
}
case PROPERTY:
{
*aAtom = txXPathAtoms::property;
break;
}
case SECONDS:
{
*aAtom = txXPathAtoms::seconds;
break;
}
case SECONDSFROMDATETIME:
{
*aAtom = txXPathAtoms::secondsFromDateTime;
break;
}
default:
{
*aAtom = 0;
return NS_ERROR_FAILURE;
}
}
NS_ADDREF(*aAtom);
return NS_OK;
}
#endif

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extensions/transformiix/source/xpath/XFormsFunctions.h Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef TRANSFRMX_XFORMS_FUNCTIONS_H
#define TRANSFRMX_XFORMS_FUNCTIONS_H
#include "Expr.h"
#include "nsIDOMNode.h"
#define NS_NAMESPACE_XFORMS "http://www.w3.org/2002/xforms"
#define NS_NAMESPACE_SCHEMA "http://www.w3.org/1999/XMLSchema"
/*
* Represents the XPath XForms Function Calls
*/
class XFormsFunctionCall : public FunctionCall {
public:
enum XFormsFunctions {
AVG, // avg()
BOOLEANFROMSTRING, // boolean-from-string()
COUNTNONEMPTY, // count-non-empty()
DAYSFROMDATE, // days-from-date()
IF, // if()
INDEX, // index()
INSTANCE, // instance()
MAX, // max()
MIN, // min()
MONTHS, // months()
NOW, // now()
PROPERTY, // property()
SECONDS, // seconds()
SECONDSFROMDATETIME // seconds-from-dateTime()
};
/*
* Creates a Number function of the given type
*/
XFormsFunctionCall(XFormsFunctions aType, nsIDOMNode *resolverNode=nsnull);
TX_DECL_FUNCTION;
private:
XFormsFunctions mType;
nsCOMPtr<nsIDOMNode> mResolverNode;
};
#endif

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extensions/transformiix/source/xpath/nsIXFormsUtilityService.h Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIXFormsUtilityService_h
#define nsIXFormsUtilityService_h
#include "nsISupports.h"
/* For IDL files that don't want to include root IDL files. */
#ifndef NS_NO_VTABLE
#define NS_NO_VTABLE
#endif
class nsIDOMNode; /* forward declaration */
class nsIXFormsModelElement; /* forward declaration */
/* starting interface: nsIXFormsUtilityService */
#define NS_IXFORMSUTILITYSERVICE_IID_STR "4a744a59-8771-4065-959d-b8de3dad81da"
#define NS_IXFORMSUTILITYSERVICE_IID \
{0x4a744a59, 0x8771, 0x4065, \
{ 0x95, 0x9d, 0xb8, 0xde, 0x3d, 0xad, 0x81, 0xda }}
#define NS_XFORMS_UTILITY_CONTRACTID "@mozilla.org/xforms-utility-service;1"
/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSIXFORMSUTILITYSERVICE \
NS_IMETHOD GetModelFromNode(nsIDOMNode *node, nsIDOMNode **_retval); \
NS_IMETHOD IsNodeAssocWithModel(nsIDOMNode *aNode, nsIDOMNode *aModel, PRBool *_retval); \
NS_IMETHOD GetInstanceDocumentRoot(const nsAString & aID, nsIDOMNode *aModelNode, nsIDOMNode **_retval); \
NS_IMETHOD ValidateString(const nsAString & aValue, const nsAString & aType, const nsAString & aNamespace, PRBool *_retval);
/**
* Private interface implemented by the nsXFormsUtilityService in XForms extension.
* Defining it here to prevent XPath requiring XForms extension.
*/
class NS_NO_VTABLE nsIXFormsUtilityService : public nsISupports {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_IXFORMSUTILITYSERVICE_IID)
/**
* Function to get the corresponding model element from a xforms node or
* a xforms instance data node.
*/
/* nsIDOMNode getModelFromNode (in nsIDOMNode node); */
NS_IMETHOD GetModelFromNode(nsIDOMNode *node, nsIDOMNode **_retval) = 0;
/**
* Function to see if the given node is associated with the given model.
* Right now this function is only called by XPath in the case of the
* instance() function.
* The provided node can be an instance node from an instance
* document and thus be associated to the model in that way (model elements
* contain instance elements). Otherwise the node will be an XForms element
* that was used as the context node of the XPath expression (i.e the
* XForms control has an attribute that contains an XPath expression).
* Form controls are associated with model elements either explicitly through
* single-node binding or implicitly (if model cannot by calculated, it
* will use the first model element encountered in the document). The model
* can also be inherited from a containing element like xforms:group or
* xforms:repeat.
*/
/* PRBool isNodeAssocWithModel (in nsIDOMNode aNode, in nsIDOMNode aModel); */
NS_IMETHOD IsNodeAssocWithModel(nsIDOMNode *aNode, nsIDOMNode *aModel, PRBool *_retval) = 0;
/**
* Function to get the instance document root for the instance element with
* the given id. The instance element must be associated with the given
* model.
*/
/* nsIDOMNode getInstanceDocumentRoot (in DOMString aID, in nsIDOMNode aModelNode); */
NS_IMETHOD GetInstanceDocumentRoot(const nsAString & aID, nsIDOMNode *aModelNode, nsIDOMNode **_retval) = 0;
/**
* Function to ensure that aValue is of the schema type aType. Will basically
* be a forwarder to the nsISchemaValidator function of the same name.
*/
/* boolean validateString (in AString aValue, in AString aType, in AString aNamespace); */
NS_IMETHOD ValidateString(const nsAString & aValue, const nsAString & aType, const nsAString & aNamespace, PRBool *_retval) = 0;
};
#define NS_ERROR_XFORMS_CALCUATION_EXCEPTION \
NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_GENERAL, 3001)
#endif /* nsIXFormsUtilityService_h */

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extensions/transformiix/source/xpath/nsIXFormsXPathEvaluator.h Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIXFormsXPathEvaluator_h
#define nsIXFormsXPathEvaluator_h
#include "nsISupports.h"
/* For IDL files that don't want to include root IDL files. */
#ifndef NS_NO_VTABLE
#define NS_NO_VTABLE
#endif
class nsIDOMNode; /* forward declaration */
class nsIDOMXPathExpression; /* forward declaration */
/* starting interface: nsIXFormsXPathEvaluator */
#define NS_XFORMS_XPATH_EVALUATOR_CONTRACTID "@mozilla.org/dom/xforms-xpath-evaluator;1"
/* a7e127c6-31ff-40b4-8780-15d6938b33d3 */
#define TRANSFORMIIX_XFORMS_XPATH_EVALUATOR_CID \
{ 0xa7e127c6, 0x31ff, 0x40b4, { 0x87, 0x80, 0x15, 0xd6, 0x93, 0x8b, 0x33, 0xd3 } }
/* 60050a4a-4c99-4bad-8c47-3b9b96caf2b4 */
#define TRANSFORMIIX_XFORMS_XPATH_EVALUATOR_IID \
{ 0x60050a4a, 0x4c99, 0x4bad, { 0x8c, 0x47, 0x3b, 0x9b, 0x96, 0xca, 0xf2, 0xb4 } }
/* Use this macro when declaring classes that implement this interface. */
#define NS_DECL_NSIXFORMXPATHEVALUATOR \
NS_IMETHOD CreateExpression(const nsAString & aExpression, nsIDOMNode *aResolverNode,nsIDOMXPathExpression **aResult); \
NS_IMETHOD Evaluate(const nsAString & aExpression, nsIDOMNode *aContextNode, nsIDOMNode *aResolverNode, PRUint16 aType, nsISupports *aInResult, nsISupports **aResult);
/**
* Private interface implemented by the nsXFormsXPathEvaluator in Transformiix
* and will move to the XForms extension when XPath is made extensible. We
* are using this interface instead of nsIDOMXPathEvaluator since we can
* don't really need all of that overhead. For example, this interface uses
* a resolver node from the xforms document rather than forcing XForms to
* create a namespace resolver node prior to creating the expression or
* running an evaluation.
*/
class NS_NO_VTABLE nsIXFormsXPathEvaluator : public nsISupports {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(TRANSFORMIIX_XFORMS_XPATH_EVALUATOR_IID)
/**
* Function to create a nsIDOMXPathExpression from the provided expression
* string. aResolverNode is the xforms node that the expression is
* associated with.
*/
NS_IMETHOD CreateExpression(const nsAString & aExpression, nsIDOMNode *aResolverNode, nsIDOMXPathExpression **aResult) = 0;
/**
* Function to evaluate the given expression. aResolverNode is the xforms
* node that the expression is associated with. The other parameters are as
* required by DOM's XPathEvaluator.
*/
NS_IMETHOD Evaluate(const nsAString & aExpression, nsIDOMNode *aContextNode, nsIDOMNode *aResolverNode, PRUint16 aType, nsISupports *aInResult, nsISupports **aResult) = 0;
};
#endif /* nsIXFormsXPathEvaluator_h */

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsXFormsXPathEvaluator.h"
#include "nsCOMPtr.h"
#include "nsIAtom.h"
#include "nsIDOMClassInfo.h"
#include "nsXPathException.h"
#include "nsXPathExpression.h"
#include "nsXPathNSResolver.h"
#include "nsXPathResult.h"
#include "nsContentCID.h"
#include "Expr.h"
#include "ExprParser.h"
#include "nsDOMError.h"
#include "txURIUtils.h"
#include "nsIDocument.h"
#include "nsIDOMDocument.h"
#include "nsDOMString.h"
#include "nsINameSpaceManager.h"
#include "txError.h"
#include "txAtoms.h"
#include "XFormsFunctions.h"
#include "nsIDOM3Node.h"
extern nsINameSpaceManager* gTxNameSpaceManager;
NS_IMPL_ADDREF(nsXFormsXPathEvaluator)
NS_IMPL_RELEASE(nsXFormsXPathEvaluator)
NS_INTERFACE_MAP_BEGIN(nsXFormsXPathEvaluator)
NS_INTERFACE_MAP_ENTRY(nsIXFormsXPathEvaluator)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXFormsXPathEvaluator)
NS_INTERFACE_MAP_END
nsXFormsXPathEvaluator::nsXFormsXPathEvaluator()
{
}
nsXFormsXPathEvaluator::~nsXFormsXPathEvaluator()
{
}
NS_IMETHODIMP
nsXFormsXPathEvaluator::CreateExpression(const nsAString & aExpression,
nsIDOMNode *aResolverNode,
nsIDOMXPathExpression **aResult)
{
nsresult rv = NS_OK;
if (!mRecycler) {
nsRefPtr<txResultRecycler> recycler = new txResultRecycler;
NS_ENSURE_TRUE(recycler, NS_ERROR_OUT_OF_MEMORY);
rv = recycler->init();
NS_ENSURE_SUCCESS(rv, rv);
mRecycler = recycler;
}
XFormsParseContextImpl pContext(aResolverNode);
nsAutoPtr<Expr> expression;
rv = txExprParser::createExpr(PromiseFlatString(aExpression), &pContext,
getter_Transfers(expression));
if (NS_FAILED(rv)) {
if (rv == NS_ERROR_DOM_NAMESPACE_ERR) {
return NS_ERROR_DOM_NAMESPACE_ERR;
}
return NS_ERROR_DOM_INVALID_EXPRESSION_ERR;
}
*aResult = new nsXPathExpression(expression, mRecycler);
if (!*aResult) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aResult);
return NS_OK;
}
NS_IMETHODIMP
nsXFormsXPathEvaluator::Evaluate(const nsAString & aExpression,
nsIDOMNode *aContextNode,
nsIDOMNode *aResolverNode,
PRUint16 aType,
nsISupports *aInResult,
nsISupports **aResult)
{
// XXX Need to check document of aContextNode if created by
// QI'ing a document.
nsCOMPtr<nsIDOMXPathExpression> expression;
nsresult rv = CreateExpression(aExpression, aResolverNode,
getter_AddRefs(expression));
NS_ENSURE_SUCCESS(rv, rv);
return expression->Evaluate(aContextNode, aType, aInResult, aResult);
}
/*
* Implementation of txIParseContext private to nsXFormsXPathEvaluator
* XFormsParseContextImpl bases on a nsIDOMXPathNSResolver
*/
nsresult nsXFormsXPathEvaluator::XFormsParseContextImpl::resolveNamespacePrefix
(nsIAtom* aPrefix, PRInt32& aID)
{
aID = kNameSpaceID_Unknown;
if (!mResolverNode) {
return NS_ERROR_DOM_NAMESPACE_ERR;
}
nsAutoString prefix;
if (aPrefix) {
aPrefix->ToString(prefix);
}
nsVoidableString ns;
nsresult rv;
// begin - taken directly from nsXPathNSResolver::LookupNamespaceURI
if (prefix.EqualsLiteral("xml")) {
ns.AssignLiteral("http://www.w3.org/XML/1998/namespace");
rv = NS_OK;
}
else {
nsCOMPtr<nsIDOM3Node> dom3Node = do_QueryInterface(mResolverNode);
NS_ASSERTION(dom3Node, "Need a node to resolve namespaces.");
if( dom3Node ) {
rv = dom3Node->LookupNamespaceURI(prefix, ns);
}
else {
SetDOMStringToNull(ns);
rv = NS_OK;
}
}
// end - taken directly from nsXPathNSResolver::LookupNamespaceURI
NS_ENSURE_SUCCESS(rv, rv);
if (DOMStringIsNull(ns)) {
return NS_ERROR_DOM_NAMESPACE_ERR;
}
if (ns.IsEmpty()) {
aID = kNameSpaceID_None;
return NS_OK;
}
// get the namespaceID for the URI
return gTxNameSpaceManager->RegisterNameSpace(ns, aID);
}
nsresult
nsXFormsXPathEvaluator::XFormsParseContextImpl::resolveFunctionCall(
nsIAtom* aName,
PRInt32 aNamespaceID,
FunctionCall*& aFnCall)
{
if (aNamespaceID == kNameSpaceID_None) {
PRBool isOutOfMem = PR_TRUE;
if (aName == txXPathAtoms::avg) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::AVG);
}
else if (aName == txXPathAtoms::booleanFromString) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::BOOLEANFROMSTRING);
}
else if (aName == txXPathAtoms::countNonEmpty) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::COUNTNONEMPTY);
}
else if (aName == txXPathAtoms::daysFromDate) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::DAYSFROMDATE);
}
else if (aName == txXPathAtoms::ifFunc) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::IF);
}
else if (aName == txXPathAtoms::index) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::INDEX);
}
else if (aName == txXPathAtoms::instance) {
NS_ENSURE_TRUE(mResolverNode, NS_ERROR_FAILURE);
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::INSTANCE,
mResolverNode);
}
else if (aName == txXPathAtoms::max) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::MAX);
}
else if (aName == txXPathAtoms::min) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::MIN);
}
else if (aName == txXPathAtoms::months) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::MONTHS);
}
else if (aName == txXPathAtoms::now) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::NOW);
}
else if (aName == txXPathAtoms::property) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::PROPERTY);
}
else if (aName == txXPathAtoms::seconds) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::SECONDS);
}
else if (aName == txXPathAtoms::secondsFromDateTime) {
aFnCall = new XFormsFunctionCall(XFormsFunctionCall::SECONDSFROMDATETIME);
}
else {
// didn't find functioncall here, aFnCall should be null
isOutOfMem = PR_FALSE;
}
if (aFnCall)
{
return NS_OK;
}
else if (isOutOfMem) {
NS_ERROR("XPath FunctionLib failed on out-of-memory");
return NS_ERROR_OUT_OF_MEMORY;
}
}
return NS_ERROR_XPATH_UNKNOWN_FUNCTION;
}
PRBool nsXFormsXPathEvaluator::XFormsParseContextImpl::caseInsensitiveNameTests()
{
// This will always be false since this handles XForms, which is XML-based,
// so case sensitive.
return PR_FALSE;
}
PRBool nsXFormsXPathEvaluator::XFormsParseContextImpl::fcp()
{
return PR_FALSE;
}
void
nsXFormsXPathEvaluator::XFormsParseContextImpl::SetErrorOffset(PRUint32 aOffset)
{
}

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsXFormsXPathEvaluator_h__
#define nsXFormsXPathEvaluator_h__
#include "nsIXFormsXPathEvaluator.h"
#include "txIXPathContext.h"
#include "nsIXPathEvaluatorInternal.h"
#include "nsIWeakReference.h"
#include "nsAutoPtr.h"
#include "txResultRecycler.h"
class nsIDOMDocument;
class nsIDOMXPathExpression;
/**
* A class for evaluating an XPath expression string
*/
class nsXFormsXPathEvaluator : public nsIXFormsXPathEvaluator
{
public:
nsXFormsXPathEvaluator();
virtual ~nsXFormsXPathEvaluator();
// nsISupports interface
NS_DECL_ISUPPORTS
// nsIXFormsXPathEvaluator interface
NS_DECL_NSIXFORMXPATHEVALUATOR
private:
// txIParseContext implementation
class XFormsParseContextImpl : public txIParseContext
{
public:
XFormsParseContextImpl(nsIDOMNode* aResolverNode)
: mResolverNode(aResolverNode), mLastError(NS_OK)
{
}
~XFormsParseContextImpl()
{
}
nsresult getError()
{
return mLastError;
}
nsresult resolveNamespacePrefix(nsIAtom* aPrefix, PRInt32& aID);
nsresult resolveFunctionCall(nsIAtom* aName, PRInt32 aID,
FunctionCall*& aFunction);
PRBool caseInsensitiveNameTests();
PRBool fcp();
void SetErrorOffset(PRUint32 aOffset);
private:
nsIDOMNode* mResolverNode;
nsresult mLastError;
};
nsRefPtr<txResultRecycler> mRecycler;
};
#endif

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsXFormsUtilityService.h"
#include "nsXFormsUtils.h"
#include "nsIXTFElement.h"
#include "nsIDOMNode.h"
#include "nsIDOMElement.h"
#include "nsString.h"
#include "nsIDOMDocument.h"
#include "nsIXFormsModelElement.h"
#include "nsIDOMNodeList.h"
#include "nsIInstanceElementPrivate.h"
NS_IMPL_ISUPPORTS1(nsXFormsUtilityService, nsIXFormsUtilityService)
NS_IMETHODIMP
nsXFormsUtilityService::GetModelFromNode(nsIDOMNode *aNode,
nsIDOMNode **aModel)
{
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aNode);
NS_ASSERTION(aModel, "no return buffer, we'll crash soon");
*aModel = nsnull;
nsAutoString namespaceURI;
aNode->GetNamespaceURI(namespaceURI);
// If the node is in the XForms namespace and XTF based, then it should
// be able to be handled by GetModel. Otherwise it is probably an instance
// node in a instance document.
if (!namespaceURI.EqualsLiteral(NS_NAMESPACE_XFORMS)) {
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIModelElementPrivate> modelPriv = nsXFormsUtils::GetModel(element);
nsCOMPtr<nsIDOMNode> modelElement = do_QueryInterface(modelPriv);
if( modelElement ) {
NS_IF_ADDREF(*aModel = modelElement);
}
// No model found
NS_ENSURE_TRUE(*aModel, NS_ERROR_FAILURE);
return NS_OK;
}
/**
* Function to see if the given node is associated with the given model.
* Right now this function is only called by XPath in the case of the
* instance() function.
* The provided node can be an instance node from an instance
* document and thus be associated to the model in that way (model elements
* contain instance elements). Otherwise the node will be an XForms element
* that was used as the context node of the XPath expression (i.e the
* XForms control has an attribute that contains an XPath expression).
* Form controls are associated with model elements either explicitly through
* single-node binding or implicitly (if model cannot by calculated, it
* will use the first model element encountered in the document). The model
* can also be inherited from a containing element like xforms:group or
* xforms:repeat.
*/
NS_IMETHODIMP
nsXFormsUtilityService::IsNodeAssocWithModel( nsIDOMNode *aNode,
nsIDOMNode *aModel,
PRBool *aModelAssocWithNode)
{
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aNode);
nsAutoString namespaceURI;
aNode->GetNamespaceURI(namespaceURI);
// If the node is in the XForms namespace and XTF based, then it should
// be able to be handled by GetModel. Otherwise it is probably an instance
// node in a instance document.
if (namespaceURI.EqualsLiteral(NS_NAMESPACE_XFORMS)) {
nsCOMPtr<nsIModelElementPrivate> modelPriv = nsXFormsUtils::GetModel(element);
nsCOMPtr<nsIDOMNode> modelNode = do_QueryInterface(modelPriv);
if (modelNode && (modelNode == aModel)) {
*aModelAssocWithNode = PR_TRUE;
}
else {
*aModelAssocWithNode = PR_FALSE;
}
}
else {
// We are assuming that if the node coming in isn't a proper XForms element,
// then it is an instance element in an instance doc. Now we just have
// to determine if the given model contains this instance document.
nsCOMPtr<nsIDOMDocument> document;
aNode->GetOwnerDocument(getter_AddRefs(document));
*aModelAssocWithNode = PR_FALSE;
// Guess that we'd better make sure that it is a model
nsCOMPtr<nsIXFormsModelElement> modelEle = do_QueryInterface(aModel);
if (modelEle) {
// OK, we know that this is a model element. So now we have to go
// instance element by instance element and find the associated
// document. If it is equal to the document that contains aNode,
// then aNode is associated with this aModel element and we can return
// true.
nsCOMPtr<nsIDOMNodeList> children;
aModel->GetChildNodes(getter_AddRefs(children));
if (!children)
return NS_OK;
PRUint32 childCount = 0;
children->GetLength(&childCount);
nsCOMPtr<nsIDOMNode> node;
nsCOMPtr<nsIInstanceElementPrivate> instElement;
nsCOMPtr<nsIDOMDocument> instDocument;
for (PRUint32 i = 0; i < childCount; ++i) {
children->Item(i, getter_AddRefs(node));
NS_ASSERTION(node, "incorrect NodeList length?");
instElement = do_QueryInterface(node);
if (!instElement)
continue;
instElement->GetDocument(getter_AddRefs(instDocument));
if (instDocument) {
if (instDocument == document) {
*aModelAssocWithNode = PR_TRUE;
break;
}
}
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsXFormsUtilityService::GetInstanceDocumentRoot(const nsAString& aID,
nsIDOMNode *aModelNode,
nsIDOMNode **aInstanceRoot)
{
nsresult rv = NS_ERROR_FAILURE;
NS_ASSERTION(aInstanceRoot, "no return buffer, we'll crash soon");
*aInstanceRoot = nsnull;
if (aID.IsEmpty()) {
return rv;
}
nsCOMPtr<nsIXFormsModelElement> modelElement = do_QueryInterface(aModelNode);
nsCOMPtr<nsIDOMDocument> doc;
rv = modelElement->GetInstanceDocument(aID, getter_AddRefs(doc));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMElement> element;
rv = doc->GetDocumentElement(getter_AddRefs(element));
NS_ENSURE_SUCCESS(rv, rv);
if (element) {
NS_IF_ADDREF(*aInstanceRoot = element);
}
return rv;
}
/* Gotta do this via the service since we don't want transformiix to require
* any of the new extensions, like schema-validation
*/
NS_IMETHODIMP
nsXFormsUtilityService::ValidateString(const nsAString & aValue,
const nsAString & aType,
const nsAString & aNamespace,
PRBool *aResult)
{
// XXX TODO This function needs to call the XForms validator layer from
// bug 274083 when it goes into the build.
#if 0
nsresult rv = NS_ERROR_FAILURE;
nsXFormsSchemaValidator *validator = new nsXFormsSchemaValidator();
*aResult = validator->ValidateString(aValue, aType, aNamespace);
return rv;
#endif
return NS_ERROR_NOT_IMPLEMENTED;
}

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 Mozilla XForms support.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Aaron Reed <aaronr@us.ibm.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsIXFormsUtilityService.h"
class nsXFormsUtilityService : public nsIXFormsUtilityService
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIXFORMSUTILITYSERVICE
};