1/*
2 * Copyright (C) 2011-2013 University of Washington. All rights reserved.
3 * Copyright (C) 2014 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1.  Redistributions of source code must retain the above copyright
10 *     notice, this list of conditions and the following disclaimer.
11 * 2.  Redistributions in binary form must reproduce the above copyright
12 *     notice, this list of conditions and the following disclaimer in the
13 *     documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
16 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
17 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
18 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef EventLoopInput_h
29#define EventLoopInput_h
30
31#if ENABLE(WEB_REPLAY)
32
33#include <replay/NondeterministicInput.h>
34#include <wtf/CurrentTime.h>
35
36namespace JSC {
37class InputCursor;
38};
39
40namespace WebCore {
41
42class ReplayController;
43
44// This is an RAII helper used during capturing which sets a flag on the input cursor
45// to track the dynamic extent of a captured event loop input. This extent approximates
46// the interval in which EventLoopInputDispatcher::dispatching() is true.
47class EventLoopInputExtent {
48    WTF_MAKE_NONCOPYABLE(EventLoopInputExtent);
49public:
50    EventLoopInputExtent(JSC::InputCursor&);
51    ~EventLoopInputExtent();
52private:
53    JSC::InputCursor& m_cursor;
54};
55
56class EventLoopInputBase : public NondeterministicInputBase {
57public:
58    EventLoopInputBase()
59        : m_timestamp(monotonicallyIncreasingTime())
60    {
61    }
62
63    virtual ~EventLoopInputBase() { }
64    virtual InputQueue queue() const override final { return InputQueue::EventLoopInput; }
65
66    virtual void dispatch(ReplayController&) = 0;
67
68    double timestamp() const { return m_timestamp; }
69    void setTimestamp(double timestamp) { m_timestamp = timestamp; }
70protected:
71    double m_timestamp;
72};
73
74template <typename InputType>
75class EventLoopInput : public EventLoopInputBase {
76    virtual const AtomicString& type() const override final
77    {
78        return InputTraits<InputType>::type();
79    }
80};
81
82} // namespace WebCore
83
84#endif // ENABLE(WEB_REPLAY)
85
86#endif // EventLoopInput_h
87