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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_SDEXT_SOURCE_PRESENTER_PRESENTERTIMER_HXX
#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERTIMER_HXX
#include <com/sun/star/awt/XCallback.hpp>
#include <com/sun/star/awt/XRequestCallback.hpp>
#include <cppuhelper/basemutex.hxx>
#include <cppuhelper/compbase.hxx>
#include <osl/mutex.hxx>
#include <osl/time.h>
#include <rtl/ref.hxx>
#include <sal/types.h>
#include <functional>
#include <memory>
#include <vector>
namespace com::sun::star::uno { class XComponentContext; }
namespace sdext::presenter {
/** The timer allows tasks to be scheduled for execution at a specified time
in the future.
*/
class PresenterTimer
{
public:
/** A task is called with the current time.
*/
typedef ::std::function<void (const TimeValue&)> Task;
static const sal_Int32 NotAValidTaskId = 0;
/** Schedule a task to be executed repeatedly. The task is executed the
first time after nFirst nano-seconds (1000000000 corresponds to one
second). After that task is executed in intervals that are
nInterval ns long until CancelTask is called.
*/
static sal_Int32 ScheduleRepeatedTask (
const css::uno::Reference<css::uno::XComponentContext>& xContext,
const Task& rTask,
const sal_Int64 nFirst,
const sal_Int64 nInterval);
static void CancelTask (const sal_Int32 nTaskId);
};
typedef cppu::WeakComponentImplHelper<
css::awt::XCallback
> PresenterClockTimerInterfaceBase;
/** A timer that calls its listeners, typically clocks, every second to
update their current time value.
*/
class PresenterClockTimer
: protected ::cppu::BaseMutex,
public PresenterClockTimerInterfaceBase
{
public:
class Listener {
public:
virtual void TimeHasChanged (const oslDateTime& rCurrentTime) = 0;
protected:
~Listener() {}
};
typedef std::shared_ptr<Listener> SharedListener;
static ::rtl::Reference<PresenterClockTimer> Instance (
const css::uno::Reference<css::uno::XComponentContext>& rxContext);
void AddListener (const SharedListener& rListener);
void RemoveListener (const SharedListener& rListener);
static oslDateTime GetCurrentTime();
// XCallback
virtual void SAL_CALL notify (const css::uno::Any& rUserData) override;
private:
static ::rtl::Reference<PresenterClockTimer> mpInstance;
::osl::Mutex maMutex;
typedef ::std::vector<SharedListener> ListenerContainer;
ListenerContainer maListeners;
oslDateTime maDateTime;
sal_Int32 mnTimerTaskId;
bool mbIsCallbackPending;
css::uno::Reference<css::awt::XRequestCallback> mxRequestCallback;
const css::uno::Reference<css::uno::XComponentContext> m_xContext;
PresenterClockTimer (
const css::uno::Reference<css::uno::XComponentContext>& rxContext);
virtual ~PresenterClockTimer() override;
void CheckCurrentTime (const TimeValue& rCurrentTime);
};
} // end of namespace ::sdext::presenter
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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