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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /sd/source/ui/inc/tools/IdleDetection.hxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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 .
+ */
+
+#pragma once
+
+#include <o3tl/typed_flags_set.hxx>
+
+namespace vcl { class Window; }
+
+namespace sd::tools {
+ enum class IdleState {
+ /** When GetIdleState() returns this value, then the system is idle.
+ */
+ Idle = 0x0000,
+
+ /** There are system event pending.
+ */
+ SystemEventPending = 0x0001,
+
+ /** A full screen slide show is running and is active. In contrast
+ there may be a full screen show be running in an inactive window,
+ i.e. in the background.
+ */
+ FullScreenShowActive = 0x0002,
+
+ /** A slide show is running in a window.
+ */
+ WindowShowActive = 0x0004,
+
+ /** A window is being painted.
+ */
+ WindowPainting = 0x0008,
+ };
+} // end of namespace ::sd::tools
+namespace o3tl {
+ template<> struct typed_flags<::sd::tools::IdleState> : is_typed_flags<::sd::tools::IdleState, 0x0f> {};
+}
+
+namespace sd::tools {
+
+/** Detect whether the system is idle and some time consuming operation may
+ be carried out. This class distinguishes between different states of
+ idle-ness.
+*/
+class IdleDetection
+{
+public:
+ /** Determine whether the system is idle.
+ @param pWindow
+ When a valid Window pointer is given then it is checked
+ whether the window is currently being painting.
+ @return
+ This method either returns IdleState::Idle or a combination of
+ IdleStates values or-ed together that describe what the system
+ is currently doing so that the caller can decide what to do.
+ */
+ static IdleState GetIdleState (const vcl::Window* pWindow);
+
+private:
+ /** Check whether there are input events pending.
+ */
+ static IdleState CheckInputPending();
+
+ /** Check whether a slide show is running full screen or in a window.
+ */
+ static IdleState CheckSlideShowRunning();
+
+ static IdleState CheckWindowPainting (const vcl::Window& rWindow);
+};
+
+} // end of namespace ::sd::tools
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */