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diff --git a/vcl/inc/osx/saltimer.h b/vcl/inc/osx/saltimer.h
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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 INCLUDED_VCL_INC_OSX_SALTIMER_H
+#define INCLUDED_VCL_INC_OSX_SALTIMER_H
+
+#include <premac.h>
+#include <Cocoa/Cocoa.h>
+#include <postmac.h>
+
+#include <saltimer.hxx>
+
+/**
+ * if NO == bAtStart, then it has to be run in the main thread,
+ * e.g. via performSelectorOnMainThread!
+ **/
+void ImplNSAppPostEvent( short nEventId, BOOL bAtStart, int nUserData = 0 );
+
+class ReleasePoolHolder
+{
+ NSAutoreleasePool* mpPool;
+
+public:
+ ReleasePoolHolder() : mpPool( [[NSAutoreleasePool alloc] init] ) {}
+ ~ReleasePoolHolder() { [mpPool release]; }
+};
+
+class AquaSalTimer final : public SalTimer, protected VersionedEvent
+{
+ NSTimer *m_pRunningTimer;
+ bool m_bDirectTimeout; ///< timeout can be processed directly
+
+ void queueDispatchTimerEvent( bool bAtStart );
+ void callTimerCallback();
+
+public:
+ AquaSalTimer();
+ virtual ~AquaSalTimer() override;
+
+ void Start( sal_uInt64 nMS ) override;
+ void Stop() override;
+
+ void handleStartTimerEvent( NSEvent* pEvent );
+ bool handleDispatchTimerEvent( NSEvent* pEvent );
+ void handleTimerElapsed();
+ void handleWindowShouldClose();
+
+ bool IsTimerElapsed() const;
+ inline bool IsDirectTimeout() const;
+};
+
+inline bool AquaSalTimer::IsDirectTimeout() const
+{
+ return m_bDirectTimeout;
+}
+
+#endif // INCLUDED_VCL_INC_OSX_SALTIMER_H
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */