Index: gecko-sdk/include/nsIInterfaceRequestorUtils.h |
=================================================================== |
--- gecko-sdk/include/nsIInterfaceRequestorUtils.h (revision 0) |
+++ gecko-sdk/include/nsIInterfaceRequestorUtils.h (revision 0) |
@@ -0,0 +1,83 @@ |
+/* -*- Mode: IDL; tab-width: 4; 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 the Mozilla browser. |
+ * |
+ * The Initial Developer of the Original Code is |
+ * Netscape Communications, Inc. |
+ * Portions created by the Initial Developer are Copyright (C) 1999 |
+ * the Initial Developer. All Rights Reserved. |
+ * |
+ * Contributor(s): |
+ * |
+ * Alternatively, the contents of this file may be used under the terms of |
+ * either of 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 __nsInterfaceRequestorUtils_h |
+#define __nsInterfaceRequestorUtils_h |
+ |
+#include "nsCOMPtr.h" |
+ |
+// a type-safe shortcut for calling the |GetInterface()| member function |
+// T must inherit from nsIInterfaceRequestor, but the cast may be ambiguous. |
+template <class T, class DestinationType> |
+inline |
+nsresult |
+CallGetInterface( T* aSource, DestinationType** aDestination ) |
+ { |
+ NS_PRECONDITION(aSource, "null parameter"); |
+ NS_PRECONDITION(aDestination, "null parameter"); |
+ |
+ return aSource->GetInterface(NS_GET_IID(DestinationType), |
+ NS_REINTERPRET_CAST(void**, aDestination)); |
+ } |
+ |
+class NS_COM_GLUE nsGetInterface : public nsCOMPtr_helper |
+ { |
+ public: |
+ nsGetInterface( nsISupports* aSource, nsresult* error ) |
+ : mSource(aSource), |
+ mErrorPtr(error) |
+ { |
+ // nothing else to do here |
+ } |
+ |
+ virtual nsresult NS_FASTCALL operator()( const nsIID&, void** ) const; |
+ |
+ private: |
+ nsISupports* mSource; |
+ nsresult* mErrorPtr; |
+ }; |
+ |
+inline |
+const nsGetInterface |
+do_GetInterface( nsISupports* aSource, nsresult* error = 0 ) |
+ { |
+ return nsGetInterface(aSource, error); |
+ } |
+ |
+#endif // __nsInterfaceRequestorUtils_h |
+ |
Property changes on: gecko-sdk\include\nsIInterfaceRequestorUtils.h |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |