1 files changed, 79 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/ds/nsObserverList.h b/src/libs/xpcom18a4/xpcom/ds/nsObserverList.h
new file mode 100644
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--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/ds/nsObserverList.h
@@ -0,0 +1,79 @@
+/* -*- 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.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * 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 nsObserverList_h___
+#define nsObserverList_h___
+
+#include "nsIObserver.h"
+#include "nsIEnumerator.h"
+#include "nsISupportsArray.h"
+#include "nsISimpleEnumerator.h"
+
+class ObserverListEnumerator : public nsISimpleEnumerator
+{
+public:
+    // nsISupports interface
+    NS_DECL_ISUPPORTS
+    NS_DECL_NSISIMPLEENUMERATOR
+
+    ObserverListEnumerator(nsISupportsArray* aValueArray);
+
+private:
+    ~ObserverListEnumerator(void);
+
+protected:
+    nsISupportsArray* mValueArray;
+    PRInt32 mIndex;
+};
+
+class nsObserverList
+{
+public:
+  nsObserverList();
+  ~nsObserverList();
+
+  nsresult AddObserver(nsIObserver* anObserver, PRBool ownsWeak);
+  nsresult RemoveObserver(nsIObserver* anObserver);
+  nsresult GetObserverList(nsISimpleEnumerator** anEnumerator);
+     
+protected:
+  PRLock* mLock;
+  nsCOMPtr<nsISupportsArray>  mObserverList;
+};
+
+
+#endif /* nsObserverList_h___ */