1 files changed, 140 insertions, 0 deletions
diff --git a/slideshow/source/inc/delayevent.hxx b/slideshow/source/inc/delayevent.hxx
new file mode 100644
index 000000000..631553915
--- /dev/null
+++ b/slideshow/source/inc/delayevent.hxx
@@ -0,0 +1,140 @@
+/* -*- 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_SLIDESHOW_SOURCE_INC_DELAYEVENT_HXX
+#define INCLUDED_SLIDESHOW_SOURCE_INC_DELAYEVENT_HXX
+
+#include "event.hxx"
+
+#include <functional>
+
+namespace slideshow::internal {
+
+/** Event, which delays the functor call the given amount of time
+ */
+class Delay : public Event
+{
+public:
+    typedef ::std::function<void ()> FunctorT;
+
+    template <typename FuncT>
+        Delay( FuncT const& func,
+               double nTimeout
+            ,  const OUString& rsDescription
+            ) : Event(rsDescription),
+            mnTimeout(nTimeout), maFunc(func), mbWasFired(false) {}
+
+    Delay( const std::function<void ()>& func,
+           double nTimeout
+        , const OUString& rsDescription
+        ) : Event(rsDescription),
+        mnTimeout(nTimeout),
+        maFunc(func),
+        mbWasFired(false) {}
+    Delay(const Delay&) = delete;
+    Delay& operator=(const Delay&) = delete;
+
+    // Event:
+    virtual bool fire() override;
+    virtual bool isCharged() const override;
+    virtual double getActivationTime( double nCurrentTime ) const override;
+    // Disposable:
+    virtual void dispose() override;
+
+private:
+    double const mnTimeout;
+    FunctorT maFunc;
+    bool mbWasFired;
+};
+
+#if OSL_DEBUG_LEVEL <= 1
+
+/** Generate delay event
+
+    @param func
+    Functor to call when the event fires.
+
+    @param nTimeout
+    Timeout in seconds, to wait until functor is called.
+
+    @return generated delay event
+*/
+template <typename FuncT>
+inline EventSharedPtr makeDelay_( FuncT const& func, double nTimeout, OUString const& rsDescription )
+{
+    return std::make_shared<Delay>( func, nTimeout, rsDescription );
+}
+
+/** Generate immediate event
+
+    @param func
+    Functor to call when the event fires.
+
+    @return generated immediate event.
+*/
+template <typename FuncT>
+inline EventSharedPtr makeEvent_( FuncT const& func, OUString const& rsDescription)
+{
+    return std::make_shared<Delay>( func, 0.0, rsDescription );
+}
+
+
+#define makeDelay(f, t, d) makeDelay_(f, t, d)
+#define makeEvent(f, d) makeEvent_(f, d)
+
+#else // OSL_DEBUG_LEVEL > 0
+
+class Delay_ : public Delay {
+public:
+    template <typename FuncT>
+    Delay_( FuncT const& func, double nTimeout,
+        char const* from_function, char const* from_file, int from_line,
+        const OUString& rsDescription)
+        : Delay(func, nTimeout, rsDescription),
+          FROM_FUNCTION(from_function),
+          FROM_FILE(from_file), FROM_LINE(from_line) {}
+
+    char const* const FROM_FUNCTION;
+    char const* const FROM_FILE;
+    int const FROM_LINE;
+};
+
+template <typename FuncT>
+inline EventSharedPtr makeDelay_(
+    FuncT const& func, double nTimeout,
+    char const* from_function, char const* from_file, int from_line,
+    const OUString& rsDescription)
+{
+    return EventSharedPtr( new Delay_( func, nTimeout,
+            from_function, from_file, from_line, rsDescription) );
+}
+
+#define makeDelay(f, t, d) makeDelay_(f, t,                   \
+        __func__, __FILE__, __LINE__,           \
+        d)
+#define makeEvent(f, d) makeDelay_(f, 0.0,                  \
+        __func__, __FILE__, __LINE__,         \
+        d)
+
+#endif // OSL_DEBUG_LEVEL <= 1
+
+} // namespace presentation::internal
+
+#endif // INCLUDED_SLIDESHOW_SOURCE_INC_DELAYEVENT_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */