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1 /* | 1 /* |
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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49 | 49 |
50 virtual ~DOMTimer(); | 50 virtual ~DOMTimer(); |
51 | 51 |
52 // ActiveDOMObject | 52 // ActiveDOMObject |
53 virtual void stop() override; | 53 virtual void stop() override; |
54 | 54 |
55 // The following are essentially constants. All intervals are in seconds. | 55 // The following are essentially constants. All intervals are in seconds. |
56 static double hiddenPageAlignmentInterval(); | 56 static double hiddenPageAlignmentInterval(); |
57 static double visiblePageAlignmentInterval(); | 57 static double visiblePageAlignmentInterval(); |
58 | 58 |
| 59 // Eager finalization is needed to promptly stop this Timer object. |
| 60 // Otherwise timer events might fire at an object that's slated for destruct
ion |
| 61 // (when lazily swept), but some of its members (m_action) may already have |
| 62 // been finalized & must not be accessed. |
| 63 EAGERLY_FINALIZE(); |
59 DECLARE_VIRTUAL_TRACE(); | 64 DECLARE_VIRTUAL_TRACE(); |
60 | 65 |
61 void dispose(); | 66 void disposeTimer(); |
62 | 67 |
63 private: | 68 private: |
64 friend class DOMTimerCoordinator; // For create(). | 69 friend class DOMTimerCoordinator; // For create(). |
65 | 70 |
66 static PassRefPtrWillBeRawPtr<DOMTimer> create(ExecutionContext* context, Pa
ssOwnPtrWillBeRawPtr<ScheduledAction> action, int timeout, bool singleShot, int
timeoutID) | 71 static PassRefPtrWillBeRawPtr<DOMTimer> create(ExecutionContext* context, Pa
ssOwnPtrWillBeRawPtr<ScheduledAction> action, int timeout, bool singleShot, int
timeoutID) |
67 { | 72 { |
68 return adoptRefWillBeNoop(new DOMTimer(context, action, timeout, singleS
hot, timeoutID)); | 73 return adoptRefWillBeNoop(new DOMTimer(context, action, timeout, singleS
hot, timeoutID)); |
69 } | 74 } |
70 | 75 |
71 DOMTimer(ExecutionContext*, PassOwnPtrWillBeRawPtr<ScheduledAction>, int int
erval, bool singleShot, int timeoutID); | 76 DOMTimer(ExecutionContext*, PassOwnPtrWillBeRawPtr<ScheduledAction>, int int
erval, bool singleShot, int timeoutID); |
72 virtual void fired() override; | 77 virtual void fired() override; |
73 | 78 |
74 // Retuns timer fire time rounded to the next multiple of timer alignment in
terval. | 79 // Retuns timer fire time rounded to the next multiple of timer alignment in
terval. |
75 virtual double alignedFireTime(double) const override; | 80 virtual double alignedFireTime(double) const override; |
76 | 81 |
77 int m_timeoutID; | 82 int m_timeoutID; |
78 int m_nestingLevel; | 83 int m_nestingLevel; |
79 OwnPtrWillBeMember<ScheduledAction> m_action; | 84 OwnPtrWillBeMember<ScheduledAction> m_action; |
80 RefPtr<UserGestureToken> m_userGestureToken; | 85 RefPtr<UserGestureToken> m_userGestureToken; |
81 }; | 86 }; |
82 | 87 |
83 } // namespace blink | 88 } // namespace blink |
84 | 89 |
85 #endif // DOMTimer_h | 90 #endif // DOMTimer_h |
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