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Bug 281987 - Finish out XPath extension functions. Patch by aaronr, r=sicking sr=tor a=mkaply

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doronr%us.ibm.com 2005-08-04 21:15:37 +00:00
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Коммит 7ec7a492ed
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532
extensions/transformiix/source/xpath/XFormsFunctionCall.cpp
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@ -1,532 +0,0 @@
/* -*- 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;
nsAutoString indexId;
evaluateToString((Expr*)iter.next(), aContext, indexId);
// 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);
// indexId should be the id of a nsIXFormsRepeatElement
nsCOMPtr<nsIDOMElement> repeatEle;
rv = document->GetElementById(indexId, getter_AddRefs(repeatEle));
NS_ENSURE_SUCCESS(rv, rv);
// now get the index value from the xforms:repeat. Need to use the
// service to do this work so that we don't have dependencies in
// transformiix on XForms.
nsCOMPtr<nsIXFormsUtilityService>xformsService =
do_GetService("@mozilla.org/xforms-utility-service;1", &rv);
NS_ENSURE_SUCCESS(rv, rv);
PRUint32 index;
rv = xformsService->GetRepeatIndex(repeatEle, &index);
NS_ENSURE_SUCCESS(rv, rv);
return aContext->recycler()->getNumberResult(index, aResult);
}
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

131
extensions/transformiix/source/xpath/nsIXFormsUtilityService.h
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@ -1,131 +0,0 @@
/* -*- 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); \
NS_IMETHOD GetRepeatIndex(nsIDOMNode *aRepeat, PRUint32 *aIndex);
/**
* 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;
/**
* Function to retrieve the index from the given repeat element.
*/
/* unsigned long getRepeatIndex (in nsIDOMNode aRepeat); */
NS_IMETHOD GetRepeatIndex(nsIDOMNode *aRepeat, PRUint32 *aIndex) = 0;
};
#define NS_ERROR_XFORMS_CALCUATION_EXCEPTION \
NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_GENERAL, 3001)
#endif /* nsIXFormsUtilityService_h */

246
extensions/xforms/nsXFormsUtilityService.cpp
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@ -36,6 +36,7 @@
*
* ***** END LICENSE BLOCK ***** */
#include "nsIServiceManager.h"
#include "nsXFormsUtilityService.h"
#include "nsXFormsUtils.h"
#include "nsIXTFElement.h"
@ -47,12 +48,22 @@
#include "nsIDOMNodeList.h"
#include "nsIInstanceElementPrivate.h"
#include "nsIXFormsRepeatElement.h"
#include "nsISchemaValidator.h"
#include "nsISchemaDuration.h"
#include "nsXFormsSchemaValidator.h"
#include "prdtoa.h"
NS_IMPL_ISUPPORTS1(nsXFormsUtilityService, nsIXFormsUtilityService)
/* I don't know why Doron didn't put this in the .idl so that it could be added
* to the generated .h file. Put it here for now
*/
#define NS_SCHEMAVALIDATOR_CONTRACTID "@mozilla.org/schemavalidator;1"
NS_IMETHODIMP
nsXFormsUtilityService::GetModelFromNode(nsIDOMNode *aNode,
nsIDOMNode **aModel)
nsIDOMNode **aModel)
{
nsCOMPtr<nsIDOMElement> element = do_QueryInterface(aNode);
NS_ASSERTION(aModel, "no return buffer, we'll crash soon");
@ -163,8 +174,8 @@ nsXFormsUtilityService::IsNodeAssocWithModel( nsIDOMNode *aNode,
NS_IMETHODIMP
nsXFormsUtilityService::GetInstanceDocumentRoot(const nsAString& aID,
nsIDOMNode *aModelNode,
nsIDOMNode **aInstanceRoot)
nsIDOMNode *aModelNode,
nsIDOMNode **aInstanceRoot)
{
nsresult rv = NS_ERROR_FAILURE;
NS_ASSERTION(aInstanceRoot, "no return buffer, we'll crash soon");
@ -195,22 +206,20 @@ nsXFormsUtilityService::GetInstanceDocumentRoot(const nsAString& aID,
*/
NS_IMETHODIMP
nsXFormsUtilityService::ValidateString(const nsAString & aValue,
const nsAString & aType,
const nsAString & aNamespace,
PRBool *aResult)
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.
NS_ASSERTION(aResult, "no return buffer for result so we'll crash soon");
*aResult = PR_FALSE;
#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;
if (validator) {
*aResult = validator->ValidateString(aValue, aType, aNamespace);
delete validator;
}
return *aResult ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
@ -225,3 +234,210 @@ nsXFormsUtilityService::GetRepeatIndex(nsIDOMNode *aRepeat, PRUint32 *aIndex)
/// @bug This should somehow end up in a NaN per the XForms 1.0 Errata (XXX)
return repeatEle ? repeatEle->GetIndex(aIndex) : NS_OK;
}
NS_IMETHODIMP
nsXFormsUtilityService::GetMonths(const nsAString & aValue,
PRInt32 * aMonths)
{
NS_ASSERTION(aMonths, "no return buffer for months, we'll crash soon");
*aMonths = 0;
nsCOMPtr<nsISchemaDuration> duration;
nsCOMPtr<nsISchemaValidator> schemaValidator =
do_GetService(NS_SCHEMAVALIDATOR_CONTRACTID);
NS_ENSURE_TRUE(schemaValidator, NS_ERROR_FAILURE);
nsresult rv = schemaValidator->ValidateBuiltinTypeDuration(aValue,
getter_AddRefs(duration));
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 sumMonths;
PRUint32 years;
PRUint32 months;
duration->GetYears(&years);
duration->GetMonths(&months);
sumMonths = months + years*12;
PRBool negative;
duration->GetNegative(&negative);
if (negative) {
// according to the spec, "the sign of the result will match the sign
// of the duration"
sumMonths *= -1;
}
*aMonths = sumMonths;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsUtilityService::GetSeconds(const nsAString & aValue,
double * aSeconds)
{
nsCOMPtr<nsISchemaDuration> duration;
nsCOMPtr<nsISchemaValidator> schemaValidator =
do_GetService(NS_SCHEMAVALIDATOR_CONTRACTID);
NS_ENSURE_TRUE(schemaValidator, NS_ERROR_FAILURE);
nsresult rv = schemaValidator->ValidateBuiltinTypeDuration(aValue,
getter_AddRefs(duration));
NS_ENSURE_SUCCESS(rv, rv);
double sumSeconds;
PRUint32 days;
PRUint32 hours;
PRUint32 minutes;
PRUint32 seconds;
double fractSecs;
duration->GetDays(&days);
duration->GetHours(&hours);
duration->GetMinutes(&minutes);
duration->GetSeconds(&seconds);
duration->GetFractionSeconds(&fractSecs);
sumSeconds = seconds + minutes*60 + hours*3600 + days*24*3600 + fractSecs;
PRBool negative;
duration->GetNegative(&negative);
if (negative) {
// according to the spec, "the sign of the result will match the sign
// of the duration"
sumSeconds *= -1;
}
*aSeconds = sumSeconds;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsUtilityService::GetSecondsFromDateTime(const nsAString & aValue,
double * aSeconds)
{
PRTime dateTime;
nsCOMPtr<nsISchemaValidator> schemaValidator =
do_GetService(NS_SCHEMAVALIDATOR_CONTRACTID);
NS_ENSURE_TRUE(schemaValidator, NS_ERROR_FAILURE);
nsresult rv = schemaValidator->ValidateBuiltinTypeDateTime(aValue, &dateTime);
NS_ENSURE_SUCCESS(rv, rv);
PRTime secs64 = dateTime, remain64;
PRInt64 usecPerSec;
PRInt32 secs32, remain32;
// convert from PRTime (microseconds from epoch) to seconds.
LL_I2L(usecPerSec, PR_USEC_PER_SEC);
LL_MOD(remain64, secs64, usecPerSec); /* remainder after conversion */
LL_DIV(secs64, secs64, usecPerSec); /* Conversion in whole seconds */
// convert whole seconds and remainder to PRInt32
LL_L2I(secs32, secs64);
LL_L2I(remain32, remain64);
// ready the result to send back to transformiix land now in case there are
// no fractional seconds or we end up having a problem parsing them out. If
// we do, we'll just ignore the fractional seconds.
double totalSeconds = secs32;
*aSeconds = totalSeconds;
// We're not getting fractional seconds back in the PRTime we get from
// the schemaValidator. We'll have to figure out the fractions from
// the original value. Since ValidateBuiltinTypeDateTime returned
// successful for us to get this far, we know that the value is in
// the proper format.
int findFractionalSeconds = aValue.FindChar('.');
if (findFractionalSeconds < 0) {
// no fractions of seconds, so we are good to go as we are
return NS_OK;
}
const nsAString& fraction = Substring(aValue, findFractionalSeconds+1,
aValue.Length());
PRBool done = PR_FALSE;
PRUnichar currentChar;
nsCAutoString fractionResult;
nsAString::const_iterator start, end, buffStart;
fraction.BeginReading(start);
fraction.BeginReading(buffStart);
fraction.EndReading(end);
while ((start != end) && !done) {
currentChar = *start++;
// Time is usually terminated with Z or followed by a time zone
// (i.e. -05:00). Time can also be terminated by the end of the string, so
// test for that as well. All of this specified at:
// http://www.w3.org/TR/xmlschema-2/#dateTime
if ((currentChar == 'Z') || (currentChar == '+') || (currentChar == '-') ||
(start == end)) {
fractionResult.AssignLiteral("0.");
AppendUTF16toUTF8(Substring(buffStart.get(), start.get()-1),
fractionResult);
} else if ((currentChar > '9') || (currentChar < '0')) {
// has to be a numerical character or else abort. This should have been
// caught by the schemavalidator, but it is worth double checking.
done = PR_TRUE;
}
}
if (fractionResult.IsEmpty()) {
// couldn't successfully parse the fractional seconds, so we'll just return
// without them.
return NS_OK;
}
// convert the result string that we have to a double and add it to the total
totalSeconds += PR_strtod(fractionResult.get(), nsnull);
*aSeconds = totalSeconds;
return NS_OK;
}
NS_IMETHODIMP
nsXFormsUtilityService::GetDaysFromDateTime(const nsAString & aValue,
PRInt32 * aDays)
{
NS_ASSERTION(aDays, "no return buffer for days, we'll crash soon");
*aDays = 0;
PRTime date;
nsCOMPtr<nsISchemaValidator> schemaValidator =
do_GetService(NS_SCHEMAVALIDATOR_CONTRACTID);
NS_ENSURE_TRUE(schemaValidator, NS_ERROR_FAILURE);
// aValue could be a xsd:date or a xsd:dateTime. If it is a dateTime, we
// should ignore the hours, minutes, and seconds according to 7.10.2 in
// the spec. So search for such things now. If they are there, strip 'em.
int findTime = aValue.FindChar('T');
nsAutoString dateString;
dateString.Assign(aValue);
if (findTime >= 0) {
dateString.Assign(Substring(dateString, 0, findTime));
}
nsresult rv = schemaValidator->ValidateBuiltinTypeDate(dateString, &date);
NS_ENSURE_SUCCESS(rv, rv);
PRTime secs64 = date;
PRInt64 usecPerSec;
PRInt32 secs32;
// convert from PRTime (microseconds from epoch) to seconds. Shouldn't
// have to worry about remainders since input is a date. Smallest value
// is in whole days.
LL_I2L(usecPerSec, PR_USEC_PER_SEC);
LL_DIV(secs64, secs64, usecPerSec);
// convert whole seconds to PRInt32
LL_L2I(secs32, secs64);
// convert whole seconds to days. 86400 seconds in a day.
*aDays = secs32/86400;
return NS_OK;
}