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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-15 05:54:39 +0000 |
commit | 267c6f2ac71f92999e969232431ba04678e7437e (patch) | |
tree | 358c9467650e1d0a1d7227a21dac2e3d08b622b2 /svl/source/notify/listener.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip |
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'svl/source/notify/listener.cxx')
-rw-r--r-- | svl/source/notify/listener.cxx | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/svl/source/notify/listener.cxx b/svl/source/notify/listener.cxx new file mode 100644 index 0000000000..6b1be0ca20 --- /dev/null +++ b/svl/source/notify/listener.cxx @@ -0,0 +1,89 @@ +/* -*- 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 . + */ + +#include <svl/listener.hxx> +#include <svl/broadcast.hxx> + +SvtListener::~SvtListener() COVERITY_NOEXCEPT_FALSE +{ + // Unregister itself from all broadcasters it's listening to. + EndListeningAll(); +} + +// registers at a specific SvtBroadcaster + +bool SvtListener::StartListening( SvtBroadcaster& rBroadcaster ) +{ + std::pair<BroadcastersType::const_iterator, bool> r = + maBroadcasters.insert(&rBroadcaster); + if (r.second) + { + // This is a new broadcaster. + rBroadcaster.Add(this); + } + return r.second; +} + +void SvtListener::EndListening( SvtBroadcaster& rBroadcaster ) +{ + BroadcastersType::const_iterator it = maBroadcasters.find(&rBroadcaster); + if (it == maBroadcasters.end()) + // Not listening to this broadcaster. + return; + maBroadcasters.erase(it); + + rBroadcaster.Remove(this); +} + +// called from the SvtBroadcaster destructor, used to avoid calling +// back into the broadcaster again +void SvtListener::BroadcasterDying( SvtBroadcaster& rBroadcaster ) +{ + BroadcastersType::const_iterator it = maBroadcasters.find(&rBroadcaster); + if (it != maBroadcasters.end()) + maBroadcasters.erase(it); +} + +void SvtListener::EndListeningAll() +{ + for (SvtBroadcaster* p : maBroadcasters) + { + SvtBroadcaster& rBC = *p; + rBC.Remove(this); + } + maBroadcasters.clear(); +} + + +void SvtListener::CopyAllBroadcasters( const SvtListener& r ) +{ + EndListeningAll(); + BroadcastersType aCopy(r.maBroadcasters); + maBroadcasters.swap(aCopy); + for (SvtBroadcaster* p : maBroadcasters) + { + p->Add(this); + } +} + +void SvtListener::Notify( const SfxHint& /*rHint*/ ) {} + +void SvtListener::Query( QueryBase& /*rQuery*/ ) const {} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |