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lightning-sunbird  0.9+nobinonly
nsXFormsMediatypeElement.cpp
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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  * Alexander Surkov.
00019  * Portions created by the Initial Developer are Copyright (C) 2006
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *  Alexander Surkov <surkov.alexander@gmail.com> (original author)
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 
00043 #include "nsXFormsDelegateStub.h"
00044 #include "nsIDOM3Node.h"
00045 
00046 class nsXFormsMediatypeElement : public nsXFormsDelegateStub
00047 {
00048 public:
00049   // nsIXFormsDelegate
00050   NS_IMETHOD GetValue(nsAString& aValue);
00051 
00052   nsXFormsMediatypeElement();
00053 
00054 #ifdef DEBUG_smaug
00055   virtual const char* Name() { return "mediatype"; }
00056 #endif
00057 };
00058 
00059 nsXFormsMediatypeElement::nsXFormsMediatypeElement():
00060   nsXFormsDelegateStub(NS_LITERAL_STRING("mediatype"))
00061 {
00062 }
00063 
00064 NS_IMETHODIMP
00065 nsXFormsMediatypeElement::GetValue(nsAString& aValue)
00066 {
00067   // The order of precedence for determining the mediatype is:
00068   //   single node binding, inline text
00069 
00070   nsXFormsDelegateStub::GetValue(aValue);
00071   if (aValue.IsVoid()) {
00072     NS_ENSURE_STATE(mElement);
00073 
00074     nsCOMPtr<nsIDOM3Node> inner(do_QueryInterface(mElement));
00075     if (inner) {
00076       inner->GetTextContent(aValue);
00077     }
00078   }
00079 
00080   return NS_OK;
00081 }
00082 
00083 NS_HIDDEN_(nsresult)
00084 NS_NewXFormsMediatypeElement(nsIXTFElement **aResult)
00085 {
00086   *aResult = new nsXFormsMediatypeElement();
00087   if (!*aResult)
00088     return NS_ERROR_OUT_OF_MEMORY;
00089 
00090   NS_ADDREF(*aResult);
00091   return NS_OK;
00092 }
00093