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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef __com_sun_star_util_XCloseListener_idl__
+#define __com_sun_star_util_XCloseListener_idl__
+
+#include <com/sun/star/util/CloseVetoException.idl>
+#include <com/sun/star/lang/XEventListener.idl>
+#include <com/sun/star/lang/EventObject.idl>
+
+
+ module com { module sun { module star { module util {
+
+/** makes it possible to receive events when an object
+ is called for closing
+
+ <p>
+ Such close events are broadcasted by a XCloseBroadcaster
+ if somewhere tries to close it by calling XCloseable::close().
+ Listener can:
+ <ul>
+ <li>break that by throwing CloseVetoException</li>
+ <li>or accept that by deregister himself at this broadcaster.</li>
+ </ul>
+ </p>
+
+ <p>
+ If an event com::sun::star::lang::XEventListener::disposing()
+ occurred, nobody called XCloseable::close() on listened object before.
+ Then it's not allowed to break this request - it must be accepted!
+ </p>
+
+ @see XCloseable
+ @see XCloseBroadcaster
+ */
+published interface XCloseListener: com::sun::star::lang::XEventListener
+{
+ /** is called when somewhere tries to close listened object
+
+ <p>
+ Is called before XCloseListener::notifyClosing().
+ Listener has the chance to break that by throwing a CloseVetoException.
+ This exception must be passed to the original caller of XCloseable::close()
+ without any interaction.
+ </p>
+
+ <p>
+ The parameter <var>GetsOwnership</var> regulate who has to try to close the listened object
+ again, if this listener disagree with the request by throwing the exception.
+ If it's set to `FALSE` the original caller of XCloseable::close()
+ will be the owner in every case. It's not allowed to call close() from this listener then.
+ If it's set to `TRUE` this listener will be the new owner if he throw the exception,
+ otherwise not! If his still running processes will be finished he must call close() on
+ listened object again then.
+ </p>
+
+ <p>
+ If this listener doesn't disagree with th close request it depends from his internal
+ implementation if he deregister himself at the listened object.
+ But normally this must be done in XCloseListener::notifyClosing().
+ </p>
+
+ @param Source
+ describes the source of the event (must be the listened object)
+
+ @param GetsOwnership
+ `TRUE` pass the ownership to this listener, if he throw the veto exception
+ (otherwise this parameter must be ignored!)
+ <br>
+ `FALSE` forbids to grab the ownership for the listened close object and call
+ close() on that any time.
+
+ @throws CloseVetoException
+ if listener disagree with the close request on listened object he must throw this exception
+ */
+ void queryClosing(
+ [in] com::sun::star::lang::EventObject Source,
+ [in] boolean GetsOwnership )
+ raises( CloseVetoException );
+
+ /** is called when the listened object is closed really
+
+ <p>
+ Now the listened object is closed really. Listener has to accept that;
+ should deregister himself and release all references to it.
+ It's not allowed nor possible to disagree with that by throwing any exception.
+ </p>
+
+ <p>
+ If the event com::sun::star::lang::XEventListener::disposing() occurred before
+ it must be accepted too. There exist no chance for a disagreement any more.
+ </p>
+
+ @param Source
+ describes the source of the event (must be the listened object)
+ */
+ void notifyClosing( [in] com::sun::star::lang::EventObject Source );
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */