141 lines
4.6 KiB
C++
141 lines
4.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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* Novell, Inc.
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* Portions created by the Initial Developer are Copyright (C) 2005
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Allan Beaufour <abeaufour@novell.com>
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* Alexander Surkov <surkov.alexander@gmail.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 __NSXFORMSACCESSORS_H__
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#define __NSXFORMSACCESSORS_H__
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#include "nsCOMPtr.h"
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#include "nsIClassInfo.h"
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#include "nsIXFormsAccessors.h"
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#include "nsIDelegateInternal.h"
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#include "nsIModelElementPrivate.h"
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/**
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* Abstract class for nsIXFormsAccessors objects. nsXFormsAccessorsBase isn't
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* meant to be instantiated, but instead a user should instantiate
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* nsXFormsAccessors or nsXFormsControlAccessors.
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*/
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class nsXFormsAccessorsBase : public nsIXFormsAccessors,
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public nsIClassInfo
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSICLASSINFO
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NS_DECL_NSIXFORMSACCESSORS
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protected:
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// The next methods should be implemented by successors. Methods are used
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// to get xforms model and instance node that are both needed to make possible
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// implementation of nsIXFormsAccessors interface by this class.
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virtual nsresult GetModel(nsIModelElementPrivate **aModel) = 0;
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virtual nsresult GetInstanceNode(nsIDOMNode **aInstanceNode) = 0;
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/**
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* Checks the status of the model item properties
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*
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* @param aState The state to check
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* @para aStateVal The returned state
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*/
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virtual nsresult GetState(PRInt32 aState, PRBool *aStateVal);
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};
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/**
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* Implementation of the nsIXFormsAccessors object for instance node.
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*/
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class nsXFormsAccessors : public nsXFormsAccessorsBase
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{
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public:
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nsXFormsAccessors(nsIModelElementPrivate *aModel, nsIDOMNode *aInstanceNode);
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protected:
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virtual nsresult GetModel(nsIModelElementPrivate **aModel);
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virtual nsresult GetInstanceNode(nsIDOMNode **aInstanceNode);
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private:
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/* The model */
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nsCOMPtr<nsIModelElementPrivate> mModel;
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/* The instance node */
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nsCOMPtr<nsIDOMNode> mInstanceNode;
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};
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/**
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* Implementation of the nsIXFormsAccessors object for nsIXFormsDelegate
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* controls.
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*
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* Some nsIXFormsDelegate controls have a value even if they are not bound to
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* instance node (like xforms:label and xforms:output). nsXFormsControlAccessors
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* object redirects getValue()/setValue() calls to nsIXFormsDelegate control.
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*/
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class nsXFormsControlAccessors : public nsXFormsAccessorsBase
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{
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public:
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nsXFormsControlAccessors(nsIDelegateInternal *aControl,
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nsIDOMElement *aElement);
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// nsIXFormsAccessors
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NS_IMETHOD GetValue(nsAString &aValue);
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NS_IMETHOD SetValue(const nsAString &aValue);
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/**
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* Called by the owning delegate when it itself is destroyed.
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*/
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void Destroy();
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protected:
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virtual nsresult GetModel(nsIModelElementPrivate **aModel);
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virtual nsresult GetInstanceNode(nsIDOMNode **aInstanceNode);
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virtual nsresult GetState(PRInt32 aState, PRBool *aStateVal);
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/* The DOM element for xforms control the accessor is bound to. */
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nsIDOMElement *mElement;
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private:
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/* The XTF element for xforms control the accessor is bound to. */
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nsIDelegateInternal *mDelegate;
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};
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#endif
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