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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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45 public: | 45 public: |
46 // Creates a new timer owned by the ExecutionContext, starts it and returns
its ID. | 46 // Creates a new timer owned by the ExecutionContext, starts it and returns
its ID. |
47 static int install(ExecutionContext*, PassOwnPtrWillBeRawPtr<ScheduledAction
>, int timeout, bool singleShot); | 47 static int install(ExecutionContext*, PassOwnPtrWillBeRawPtr<ScheduledAction
>, int timeout, bool singleShot); |
48 static void removeByID(ExecutionContext*, int timeoutID); | 48 static void removeByID(ExecutionContext*, int timeoutID); |
49 | 49 |
50 ~DOMTimer() override; | 50 ~DOMTimer() override; |
51 | 51 |
52 // ActiveDOMObject | 52 // ActiveDOMObject |
53 void stop() override; | 53 void stop() override; |
54 | 54 |
55 // The following are essentially constants. All intervals are in seconds. | |
56 static double hiddenPageAlignmentInterval(); | |
57 static double visiblePageAlignmentInterval(); | |
58 | |
59 // Eager finalization is needed to promptly stop this Timer object. | 55 // 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 | 56 // 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 | 57 // (when lazily swept), but some of its members (m_action) may already have |
62 // been finalized & must not be accessed. | 58 // been finalized & must not be accessed. |
63 EAGERLY_FINALIZE(); | 59 EAGERLY_FINALIZE(); |
64 DECLARE_VIRTUAL_TRACE(); | 60 DECLARE_VIRTUAL_TRACE(); |
65 | 61 |
66 void disposeTimer(); | 62 void disposeTimer(); |
67 | 63 |
68 private: | 64 private: |
69 friend class DOMTimerCoordinator; // For create(). | 65 friend class DOMTimerCoordinator; // For create(). |
70 | 66 |
71 static PassRefPtrWillBeRawPtr<DOMTimer> create(ExecutionContext* context, Pa
ssOwnPtrWillBeRawPtr<ScheduledAction> action, int timeout, bool singleShot, int
timeoutID) | 67 static PassRefPtrWillBeRawPtr<DOMTimer> create(ExecutionContext* context, Pa
ssOwnPtrWillBeRawPtr<ScheduledAction> action, int timeout, bool singleShot, int
timeoutID) |
72 { | 68 { |
73 return adoptRefWillBeNoop(new DOMTimer(context, action, timeout, singleS
hot, timeoutID)); | 69 return adoptRefWillBeNoop(new DOMTimer(context, action, timeout, singleS
hot, timeoutID)); |
74 } | 70 } |
75 | 71 |
76 DOMTimer(ExecutionContext*, PassOwnPtrWillBeRawPtr<ScheduledAction>, int int
erval, bool singleShot, int timeoutID); | 72 DOMTimer(ExecutionContext*, PassOwnPtrWillBeRawPtr<ScheduledAction>, int int
erval, bool singleShot, int timeoutID); |
77 void fired() override; | 73 void fired() override; |
78 | 74 |
79 // Retuns timer fire time rounded to the next multiple of timer alignment in
terval. | |
80 double alignedFireTime(double) const override; | |
81 | |
82 WebTaskRunner* timerTaskRunner() override; | 75 WebTaskRunner* timerTaskRunner() override; |
83 | 76 |
84 int m_timeoutID; | 77 int m_timeoutID; |
85 int m_nestingLevel; | 78 int m_nestingLevel; |
86 OwnPtrWillBeMember<ScheduledAction> m_action; | 79 OwnPtrWillBeMember<ScheduledAction> m_action; |
87 RefPtr<UserGestureToken> m_userGestureToken; | 80 RefPtr<UserGestureToken> m_userGestureToken; |
88 }; | 81 }; |
89 | 82 |
90 } // namespace blink | 83 } // namespace blink |
91 | 84 |
92 #endif // DOMTimer_h | 85 #endif // DOMTimer_h |
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