1/*
2 * Copyright (C) 2009 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1.  Redistributions of source code must retain the above copyright
9 *     notice, this list of conditions and the following disclaimer.
10 * 2.  Redistributions in binary form must reproduce the above copyright
11 *     notice, this list of conditions and the following disclaimer in the
12 *     documentation and/or other materials provided with the distribution.
13 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 *     its contributors may be used to endorse or promote products derived
15 *     from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef RunLoopTimer_h
30#define RunLoopTimer_h
31
32#include "SchedulePair.h"
33#include <wtf/Noncopyable.h>
34#include <wtf/RetainPtr.h>
35
36namespace WebCore {
37
38// Time intervals are all in seconds.
39
40class RunLoopTimerBase : public Noncopyable {
41public:
42    virtual ~RunLoopTimerBase();
43
44    void schedule(const SchedulePair*);
45    void schedule(const SchedulePairHashSet&);
46
47    void start(double nextFireInterval, double repeatInterval);
48
49    void startRepeating(double repeatInterval) { start(repeatInterval, repeatInterval); }
50    void startOneShot(double interval) { start(interval, 0); }
51
52    void stop();
53    bool isActive() const;
54
55    virtual void fired() = 0;
56
57private:
58#if PLATFORM(CF)
59    RetainPtr<CFRunLoopTimerRef> m_timer;
60#endif
61};
62
63template <typename TimerFiredClass> class RunLoopTimer : public RunLoopTimerBase {
64public:
65    typedef void (TimerFiredClass::*TimerFiredFunction)(RunLoopTimer*);
66
67    RunLoopTimer(TimerFiredClass* o, TimerFiredFunction f)
68        : m_object(o), m_function(f) { }
69
70    virtual void fired() { (m_object->*m_function)(this); }
71
72private:
73    TimerFiredClass* m_object;
74    TimerFiredFunction m_function;
75};
76
77} // namespace WebCore
78
79#endif
80