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| 1 /* | |
| 2 * Copyright (C) 2008 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 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 * | |
| 25 */ | |
| 26 | |
| 27 #ifndef ActiveDOMObject_h | |
| 28 #define ActiveDOMObject_h | |
| 29 | |
| 30 #include "core/CoreExport.h" | |
| 31 #include "core/dom/ContextLifecycleObserver.h" | |
| 32 #include "wtf/Assertions.h" | |
| 33 | |
| 34 namespace blink { | |
| 35 | |
| 36 class CORE_EXPORT ActiveDOMObject : public ContextLifecycleObserver { | |
| 37 public: | |
| 38 ActiveDOMObject(ExecutionContext*); | |
| 39 | |
| 40 // suspendIfNeeded() should be called exactly once after object construction | |
| 41 // to synchronize the suspend state with that in ExecutionContext. | |
| 42 void suspendIfNeeded(); | |
| 43 #if DCHECK_IS_ON() | |
| 44 bool suspendIfNeededCalled() const { return m_suspendIfNeededCalled; } | |
| 45 #endif | |
| 46 | |
| 47 // These methods have an empty default implementation so that subclasses | |
| 48 // which don't need special treatment can skip implementation. | |
| 49 virtual void suspend(); | |
| 50 virtual void resume(); | |
| 51 | |
| 52 void didMoveToNewExecutionContext(ExecutionContext*); | |
| 53 | |
| 54 protected: | |
| 55 virtual ~ActiveDOMObject(); | |
| 56 | |
| 57 private: | |
| 58 #if DCHECK_IS_ON() | |
| 59 bool m_suspendIfNeededCalled; | |
| 60 #endif | |
| 61 }; | |
| 62 | |
| 63 } // namespace blink | |
| 64 | |
| 65 #endif // ActiveDOMObject_h | |
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Chromium Code Reviews
Issue 2567913002:
Rename ActiveDOMObject to SuspendableObject (Closed)
