Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 120 insertions, 0 deletions

diff --git a/offapi/com/sun/star/util/XCloseable.idl b/offapi/com/sun/star/util/XCloseable.idl
new file mode 100644
index 000000000..ad39183c8
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+++ b/offapi/com/sun/star/util/XCloseable.idl
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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_XCloseable_idl__
+#define __com_sun_star_util_XCloseable_idl__
+
+#include <com/sun/star/uno/XInterface.idl>
+#include <com/sun/star/util/XCloseBroadcaster.idl>
+
+
+module com {  module sun {  module star {  module util {
+
+/** makes it possible to release any objects in an ordered manner by using
+    a two-step mechanism
+
+    <p>
+    If an object should be terminated, it can be:<br>
+    <ul>
+        <li>disposed (if it supports com::sun::star::lang::XComponent::dispose())</li>
+        <li>closed   (if it supports XCloseable::close())</li>
+    </ul>
+    First version gives the object no chance to disagree with that (e.g. if a
+    process is still running and can't be canceled really). Last version
+    provides this possibility, but can't guarantee real termination of called object.
+    It depends from the environment of an object, if one or both mechanism are necessary.
+    </p>
+
+    <p>
+    Base interface XCloseBroadcaster makes it possible that any listener
+    which is interested on life time of listened object ...
+    <ul>
+        <li>can get a notification about closing of it</li>
+        <li>or can have a veto to break that.</li>
+    </ul>
+    </p>
+
+    @see com::sun::star::lang::XComponent::dispose()
+    @see XCloseBroadcaster
+    @see XCloseListener
+ */
+published interface XCloseable: XCloseBroadcaster
+{
+    /** try to close the object
+
+        <p>
+        Must definitely be called before com::sun::star::lang::XComponent::dispose().
+        But nobody can guarantee real closing of called object - because it can disagree with that if any
+        still running processes can't be canceled yet. It's not allowed to block this call till internal
+        operations will be finished here. They must be canceled or call must return immediately by throwing
+        the CloseVetoException.  Otherwise (if nothing exist to disagree) it must return normally.
+        </p>
+
+        <p>
+        Before any internal processes will be canceled, all registered XCloseListener
+        must be notified. Any of them can disagree with a CloseVetoException too.
+        It's forbidden to catch this exception inside the called close() method because the caller must
+        get this information!
+        </p>
+
+        <p>
+        If somewhere disagree with a CloseVetoException it will not clear who has to close the object again
+        after still running processes was finished. The parameter <var>DeliverOwnership</var> regulate that.
+        If it is set to `FALSE` the caller of the method close() will be the owner of this object in every case.
+        Then it's not allowed to call close() from any other place (may a registered XCloseListener).
+        If it is set to `TRUE` the caller gives up his ownership. If a XCloseListener throw the veto exception
+        he will be the new owner of the closing object. This information is passed to the listener by a parameter of
+        his notification method XCloseListener::queryClosing(). After his operations was finished
+        he MUST try to close it again. If the closing object itself disagree by an exception and the parameter
+        <var>DeliverOwnership</var> was set to `TRUE` the object will be his own owner with all consequences of that.
+        <br><strong>Note:</strong><br>
+        There is no way to get the ownership back if it was delivered!
+        </p>
+
+        <p>
+        If this method was already called on an object it should return without any reaction. Normally it's possible to throw
+        a com::sun::star::lang::DisposedException for already disposed or closed objects
+        (which represent a com::sun::star::uno::RuntimeException and can be thrown by every interface call),
+        but it shouldn't be used here. The veto exception should be the only way to indicates the result.
+        </p>
+
+        @param DeliverOwnership
+                `TRUE` delegates the ownership of this closing object to anyone which throw the CloseVetoException.
+                This new owner has to close the closing object again if his still running processes will be finished.
+                <br>
+                `FALSE` let the ownership at the original one which called the close() method. He must react for possible
+                CloseVetoExceptions and try it again at a later time. This can be useful for a generic UI handling.
+
+        @throws CloseVetoException
+            indicates that the closing object himself or any of his currently registered listener disagree with this close() request.
+
+        @see XCloseListener
+        @see CloseVetoException
+        @see com::sun::star::lang::XComponent::dispose()
+        @see com::sun::star::lang::DisposedException
+     */
+    void close( [in] boolean DeliverOwnership )
+            raises( CloseVetoException );
+};
+
+
+}; }; }; };
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */