Version 1.8 of gecko-sdk. Downloaded from here:...

gecko-sdk/idl/nsIWeakReference.idl

Index: gecko-sdk/idl/nsIWeakReference.idl
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--- gecko-sdk/idl/nsIWeakReference.idl	(revision 0)
+++ gecko-sdk/idl/nsIWeakReference.idl	(revision 0)
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+/* -*- Mode: IDL; 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 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):
+ *   Pierre Phaneuf <pp@ludusdesign.com>
+ *
+ * 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 ***** */
+
+#include "nsISupports.idl"
+
+
+/**
+ * An instance of |nsIWeakReference| is a proxy object that cooperates with
+ * its referent to give clients a non-owning, non-dangling reference.  Clients
+ * own the proxy, and should generally manage it with an |nsCOMPtr| (see the
+ * type |nsWeakPtr| for a |typedef| name that stands out) as they would any
+ * other XPCOM object.  The |QueryReferent| member function provides a
+ * (hopefully short-lived) owning reference on demand, through which clients
+ * can get useful access to the referent, while it still exists.
+ *
+ * @status FROZEN
+ * @version 1.0
+ * @see nsISupportsWeakReference
+ * @see nsWeakReference
+ * @see nsWeakPtr
+ */
+[scriptable, uuid(9188bc85-f92e-11d2-81ef-0060083a0bcf)]
+interface nsIWeakReference : nsISupports
+  {
+    /**
+     * |QueryReferent| queries the referent, if it exists, and like |QueryInterface|, produces
+     * an owning reference to the desired interface.  It is designed to look and act exactly
+     * like (a proxied) |QueryInterface|.  Don't hold on to the produced interface permanently;
+     * that would defeat the purpose of using a non-owning |nsIWeakReference| in the first place.
+     */
+    void QueryReferent( in nsIIDRef uuid, [iid_is(uuid), retval] out nsQIResult result );
+  };
+
+
+/**
+ * |nsISupportsWeakReference| is a factory interface which produces appropriate
+ * instances of |nsIWeakReference|.  Weak references in this scheme can only be
+ * produced for objects that implement this interface.
+ *
+ * @status FROZEN
+ * @version 1.0
+ * @see nsIWeakReference
+ * @see nsSupportsWeakReference
+ */
+[scriptable, uuid(9188bc86-f92e-11d2-81ef-0060083a0bcf)]
+interface nsISupportsWeakReference : nsISupports
+  {
+    /**
+     * |GetWeakReference| produces an appropriate instance of |nsIWeakReference|.
+     * As with all good XPCOM `getters', you own the resulting interface and should
+     * manage it with an |nsCOMPtr|.
+     *
+     * @see nsIWeakReference
+     * @see nsWeakPtr
+     * @see nsCOMPtr
+     */
+    nsIWeakReference GetWeakReference();
+  };
+
+
+%{C++
+#ifdef MOZILLA_INTERNAL_API
+#include "nsIWeakReferenceUtils.h"
+#endif
+%}
+
Property changes on: gecko-sdk\idl\nsIWeakReference.idl
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