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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+#ifndef __com_sun_star_util_XCloseListener_idl__
+#define __com_sun_star_util_XCloseListener_idl__
+
+#ifndef __com_sun_star_util_CloseVetoException_idl__
+#include <com/sun/star/util/CloseVetoException.idl>
+#endif
+
+#ifndef __com_sun_star_lang_XEventListener_idl__
+#include <com/sun/star/lang/XEventListener.idl>
+#endif
+
+#ifndef __com_sun_star_lang_EventObject_idl__
+#include <com/sun/star/lang/EventObject.idl>
+#endif
+
+//=============================================================================
+
+ 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 <type>XCloseBroadcaster</type>
+ if somewhere tries to close it by calling <member>XCloseable::close()</member>.
+ Listener can:
+ <ul>
+ <li>break that by throwing <type>CloseVetoException</type></li>
+ <li>or accept that by deregister himself at this broadcaster.</li>
+ </ul>
+ </p>
+
+ <p>
+ If an event <method scope="com::sun::star::lang">XEventListener::disposing</method>
+ occured, nobody called <method>XCloseable::close</method> 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 <member>XCloseListener::notifyClosing()</member>.
+ Listener has the chance to break that by throwing a <type>CloseVetoException</type>.
+ This exception must be passed to the original caller of <member>XCloseable::close()</member>
+ 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 <member>XCloseable::close()</member>
+ 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 normaly this must be done in <member>XCloseListener::notifyClosing()</member>.
+ </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 realy
+
+ <p>
+ Now the listened object is closed realy. Listener has to accept that;
+ should deregister himself and relaese all references to it.
+ It's not allowed nor possible to disagree with that by throwing any exception.
+ </p>
+
+ <p>
+ If the event <member scope="com::sun::star::lang">XEventListener::disposing()</member> occured 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