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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):
* Brian Ryner <bryner@brianryner.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 nsXFormsInstanceElement_h_
#define nsXFormsInstanceElement_h_
#include "nsXFormsStubElement.h"
#include "nsIDOMDocument.h"
#include "nsCOMArray.h"
#include "nsCOMPtr.h"
#include "nsIModelElementPrivate.h"
#include "nsIInstanceElementPrivate.h"
#include "nsIRequestObserver.h"
#include "nsIStreamListener.h"
#include "nsIChannelEventSink.h"
#include "nsIInterfaceRequestor.h"
#include "nsIXFormsContextInfo.h"
class nsIDocument;
class nsIDOMElement;
/**
* Implementation of the XForms \<instance\> element.
* It creates an instance document by either cloning the inline instance data
* or loading an external xml document given by the src attribute.
*/
class nsXFormsInstanceElement : public nsXFormsStubElement,
public nsIInstanceElementPrivate,
public nsIStreamListener,
public nsIChannelEventSink,
public nsIInterfaceRequestor
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIREQUESTOBSERVER
NS_DECL_NSIXFORMSNSINSTANCEELEMENT
NS_DECL_NSIINSTANCEELEMENTPRIVATE
NS_DECL_NSISTREAMLISTENER
NS_DECL_NSICHANNELEVENTSINK
NS_DECL_NSIINTERFACEREQUESTOR
// nsIXTFGenericElement overrides
NS_IMETHOD OnDestroyed();
NS_IMETHOD AttributeSet(nsIAtom *aName, const nsAString &aNewValue);
NS_IMETHOD AttributeRemoved(nsIAtom *aName);
NS_IMETHOD WillChangeParent(nsIDOMElement *aNewParent);
NS_IMETHOD ParentChanged(nsIDOMElement *aNewParent);
NS_IMETHOD OnCreated(nsIXTFGenericElementWrapper *aWrapper);
nsXFormsInstanceElement() NS_HIDDEN;
private:
NS_HIDDEN_(nsresult) CloneInlineInstance(nsIDOMNode *aChild);
NS_HIDDEN_(void) LoadExternalInstance(const nsAString &aSrc);
NS_HIDDEN_(nsresult) CreateInstanceDocument(const nsAString &aQualifiedName);
NS_HIDDEN_(already_AddRefed<nsIModelElementPrivate>) GetModel();
NS_HIDDEN_(nsresult) GetFirstChildElement(nsIDOMNode **aChild);
/**
* Replace principal for document to be the same as for the owning document.
*
* WARNING: This could lead to a security breach, and should be used with
* extreme care!
*
* @see https://bugzilla.mozilla.org/show_bug.cgi?id=338451
*
* @param aDoc The document to replace principal for
*/
nsresult ReplacePrincipal(nsIDocument *aDoc);
nsCOMPtr<nsIDOMDocument> mDocument;
nsCOMPtr<nsIDOMDocument> mOriginalDocument;
nsIDOMElement *mElement;
nsCOMPtr<nsIStreamListener> mListener;
PRBool mInitialized;
PRBool mLazy;
nsCOMPtr<nsIChannel> mChannel;
// Context Info for events.
nsCOMArray<nsIXFormsContextInfo> mContextInfo;
};
NS_HIDDEN_(nsresult)
NS_NewXFormsInstanceElement(nsIXTFElement **aResult);
#endif
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