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lightning-sunbird  0.9+nobinonly
nsXFormsInstanceElement.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is Mozilla XForms support.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * IBM Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 2004
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *  Brian Ryner <bryner@brianryner.com>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #ifndef nsXFormsInstanceElement_h_
00040 #define nsXFormsInstanceElement_h_
00041 
00042 #include "nsXFormsStubElement.h"
00043 #include "nsIDOMDocument.h"
00044 #include "nsCOMArray.h"
00045 #include "nsCOMPtr.h"
00046 #include "nsIModelElementPrivate.h"
00047 #include "nsIInstanceElementPrivate.h"
00048 #include "nsIRequestObserver.h"
00049 #include "nsIStreamListener.h"
00050 #include "nsIChannelEventSink.h"
00051 #include "nsIInterfaceRequestor.h"
00052 #include "nsIXFormsContextInfo.h"
00053 
00054 class nsIDocument;
00055 class nsIDOMElement;
00056 
00063 class nsXFormsInstanceElement : public nsXFormsStubElement,
00064                                 public nsIInstanceElementPrivate,
00065                                 public nsIStreamListener,
00066                                 public nsIChannelEventSink,
00067                                 public nsIInterfaceRequestor
00068 {
00069 public:
00070   NS_DECL_ISUPPORTS_INHERITED
00071   NS_DECL_NSIREQUESTOBSERVER
00072   NS_DECL_NSIXFORMSNSINSTANCEELEMENT
00073   NS_DECL_NSIINSTANCEELEMENTPRIVATE
00074   NS_DECL_NSISTREAMLISTENER
00075   NS_DECL_NSICHANNELEVENTSINK
00076   NS_DECL_NSIINTERFACEREQUESTOR
00077 
00078   // nsIXTFGenericElement overrides
00079   NS_IMETHOD OnDestroyed();
00080   NS_IMETHOD AttributeSet(nsIAtom *aName, const nsAString &aNewValue);
00081   NS_IMETHOD AttributeRemoved(nsIAtom *aName);
00082   NS_IMETHOD WillChangeParent(nsIDOMElement *aNewParent);
00083   NS_IMETHOD ParentChanged(nsIDOMElement *aNewParent);
00084   NS_IMETHOD OnCreated(nsIXTFGenericElementWrapper *aWrapper);
00085 
00086   nsXFormsInstanceElement() NS_HIDDEN;
00087 
00088 private:
00089   NS_HIDDEN_(nsresult) CloneInlineInstance(nsIDOMNode *aChild);
00090   NS_HIDDEN_(void) LoadExternalInstance(const nsAString &aSrc);
00091   NS_HIDDEN_(nsresult) CreateInstanceDocument(const nsAString &aQualifiedName);
00092   NS_HIDDEN_(already_AddRefed<nsIModelElementPrivate>) GetModel();
00093   NS_HIDDEN_(nsresult) GetFirstChildElement(nsIDOMNode **aChild);
00094 
00105   nsresult ReplacePrincipal(nsIDocument *aDoc);
00106 
00107   nsCOMPtr<nsIDOMDocument>    mDocument;
00108   nsCOMPtr<nsIDOMDocument>    mOriginalDocument;
00109   nsIDOMElement              *mElement;
00110   nsCOMPtr<nsIStreamListener> mListener;
00111   PRBool                      mInitialized;
00112   PRBool                      mLazy;
00113   nsCOMPtr<nsIChannel>        mChannel;
00114   // Context Info for events.
00115   nsCOMArray<nsIXFormsContextInfo> mContextInfo;
00116 };
00117 
00118 NS_HIDDEN_(nsresult)
00119 NS_NewXFormsInstanceElement(nsIXTFElement **aResult);
00120 
00121 #endif