mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 16:46:26 +00:00
240 lines
8.4 KiB
C++
240 lines
8.4 KiB
C++
/* -*- 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"
|
|
#include "nsIXFormsRepeatElement.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;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsXFormsUtilityService::GetRepeatIndex(nsIDOMNode *aRepeat, PRUint32 *aIndex)
|
|
{
|
|
NS_ASSERTION(aIndex, "no return buffer for index, we'll crash soon");
|
|
*aIndex = 0;
|
|
|
|
nsCOMPtr<nsIXFormsRepeatElement> repeatEle = do_QueryInterface(aRepeat);
|
|
|
|
///
|
|
/// @bug This should somehow end up in a NaN per the XForms 1.0 Errata (XXX)
|
|
return repeatEle ? repeatEle->GetIndex(aIndex) : NS_OK;
|
|
}
|