1 files changed, 83 insertions, 0 deletions
diff --git a/vcl/inc/win/saltimer.h b/vcl/inc/win/saltimer.h
new file mode 100644
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+++ b/vcl/inc/win/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 .
+ */
+
+#pragma once
+
+#include <saltimer.hxx>
+
+class WinSalTimer final : public SalTimer, protected VersionedEvent
+{
+    // for access to Impl* functions
+    friend LRESULT CALLBACK SalComWndProc( HWND, UINT nMsg, WPARAM wParam, LPARAM lParam, bool& rDef );
+    // for access to GetNextVersionedEvent
+    friend void CALLBACK SalTimerProc( PVOID data, BOOLEAN );
+    // for access to ImplHandleElapsedTimer
+    friend bool ImplSalYield( bool bWait, bool bHandleAllCurrentEvents );
+
+    /**
+     * Identifier for our SetTimer based timer
+     */
+    static constexpr UINT_PTR m_aWmTimerId = 0xdeadbeef;
+
+    HANDLE       m_nTimerId;          ///< Windows timer id
+    bool         m_bDirectTimeout;    ///< timeout can be processed directly
+    bool         m_bForceRealTimer;   ///< enforce using a real timer for 0ms
+    bool         m_bSetTimerRunning;  ///< true, if a SetTimer is running
+
+    void ImplStart( sal_uInt64 nMS );
+    void ImplStop();
+    void ImplHandleTimerEvent( WPARAM aWPARAM );
+    void ImplHandleElapsedTimer();
+    void ImplHandle_WM_TIMER( WPARAM aWPARAM );
+
+public:
+    WinSalTimer();
+    virtual ~WinSalTimer() override;
+
+    virtual void Start(sal_uInt64 nMS) override;
+    virtual void Stop() override;
+
+    inline bool IsDirectTimeout() const;
+    inline bool HasTimerElapsed() const;
+
+    /**
+     * Enforces the usage of a real timer instead of the message queue
+     *
+     * Needed for Window resize processing, as this starts a modal event loop.
+     */
+    void SetForceRealTimer( bool bVal );
+    inline bool GetForceRealTimer() const;
+};
+
+inline bool WinSalTimer::IsDirectTimeout() const
+{
+    return m_bDirectTimeout;
+}
+
+inline bool WinSalTimer::HasTimerElapsed() const
+{
+    return m_bDirectTimeout || ExistsValidEvent();
+}
+
+inline bool WinSalTimer::GetForceRealTimer() const
+{
+    return m_bForceRealTimer;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */