100 lines
4.4 KiB
C++
100 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla XForms support.
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*
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* The Initial Developer of the Original Code is
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* IBM Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2004
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Aaron Reed <aaronr@us.ibm.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsIXFormsXPathEvaluator_h
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#define nsIXFormsXPathEvaluator_h
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#include "nsISupports.h"
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/* For IDL files that don't want to include root IDL files. */
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#ifndef NS_NO_VTABLE
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#define NS_NO_VTABLE
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#endif
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class nsIDOMNode; /* forward declaration */
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class nsIDOMNSXPathExpression; /* forward declaration */
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/* starting interface: nsIXFormsXPathEvaluator */
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#define NS_XFORMS_XPATH_EVALUATOR_CONTRACTID "@mozilla.org/dom/xforms-xpath-evaluator;1"
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/* 4cdd884f-f949-4d82-bb78-b8edd9f1420c */
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#define TRANSFORMIIX_XFORMS_XPATH_EVALUATOR_CID \
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{ 0x4cdd884f, 0xf949, 0x4d82, \
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{0xbb, 0x78, 0xb8, 0xed, 0xd9, 0xf1, 0x42, 0x0c} }
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/* 61e5a446-73f7-432e-a2d6-d94d4a51aed8 */
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#define TRANSFORMIIX_XFORMS_XPATH_EVALUATOR_IID \
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{ 0x61e5a446, 0x73f7, 0x432e, \
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{0xa2, 0xd6, 0xd9, 0x4d, 0x4a, 0x51, 0xae, 0xd8} }
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/* Use this macro when declaring classes that implement this interface. */
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#define NS_DECL_NSIXFORMXPATHEVALUATOR \
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NS_IMETHOD CreateExpression(const nsAString & aExpression, nsIDOMNode *aResolverNode, nsIDOMNSXPathExpression **aResult); \
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NS_IMETHOD Evaluate(const nsAString & aExpression, nsIDOMNode *aContextNode, PRUint32 aContextPosition, PRUint32 aContextSize, nsIDOMNode *aResolverNode, PRUint16 aType, nsISupports *aInResult, nsISupports **aResult);
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/**
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* Private interface implemented by the nsXFormsXPathEvaluator in Transformiix
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* and will move to the XForms extension when XPath is made extensible. We
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* are using this interface instead of nsIDOMXPathEvaluator since we can
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* don't really need all of that overhead. For example, this interface uses
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* a resolver node from the xforms document rather than forcing XForms to
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* create a namespace resolver node prior to creating the expression or
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* running an evaluation.
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*/
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class NS_NO_VTABLE nsIXFormsXPathEvaluator : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(TRANSFORMIIX_XFORMS_XPATH_EVALUATOR_IID)
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/**
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* Function to create a nsIDOMNSXPathExpression from the provided expression
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* string. aResolverNode is the xforms node that the expression is
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* associated with.
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*/
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NS_IMETHOD CreateExpression(const nsAString & aExpression, nsIDOMNode *aResolverNode, nsIDOMNSXPathExpression **aResult) = 0;
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/**
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* Function to evaluate the given expression. aResolverNode is the xforms
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* node that the expression is associated with. The other parameters are as
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* required by DOM's XPathEvaluator.
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*/
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NS_IMETHOD Evaluate(const nsAString & aExpression, nsIDOMNode *aContextNode, PRUint32 aContextPosition, PRUint32 aContextSize, nsIDOMNode *aResolverNode, PRUint16 aType, nsISupports *aInResult, nsISupports **aResult) = 0;
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};
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#endif /* nsIXFormsXPathEvaluator_h */
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