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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 #include "core/dom/ActiveDOMObject.h" | |
| 28 | |
| 29 #include "core/dom/ExecutionContext.h" | |
| 30 #include "platform/InstanceCounters.h" | |
| 31 | |
| 32 namespace blink { | |
| 33 | |
| 34 ActiveDOMObject::ActiveDOMObject(ExecutionContext* executionContext) | |
| 35 : ContextLifecycleObserver(executionContext, ActiveDOMObjectType) | |
| 36 #if DCHECK_IS_ON() | |
| 37 , | |
| 38 m_suspendIfNeededCalled(false) | |
| 39 #endif | |
| 40 { | |
| 41 DCHECK(!executionContext || executionContext->isContextThread()); | |
| 42 InstanceCounters::incrementCounter(InstanceCounters::ActiveDOMObjectCounter); | |
| 43 } | |
| 44 | |
| 45 ActiveDOMObject::~ActiveDOMObject() { | |
| 46 InstanceCounters::decrementCounter(InstanceCounters::ActiveDOMObjectCounter); | |
| 47 | |
| 48 #if DCHECK_IS_ON() | |
| 49 DCHECK(m_suspendIfNeededCalled); | |
| 50 #endif | |
| 51 } | |
| 52 | |
| 53 void ActiveDOMObject::suspendIfNeeded() { | |
| 54 #if DCHECK_IS_ON() | |
| 55 DCHECK(!m_suspendIfNeededCalled); | |
| 56 m_suspendIfNeededCalled = true; | |
| 57 #endif | |
| 58 if (ExecutionContext* context = getExecutionContext()) | |
| 59 context->suspendActiveDOMObjectIfNeeded(this); | |
| 60 } | |
| 61 | |
| 62 void ActiveDOMObject::suspend() {} | |
| 63 | |
| 64 void ActiveDOMObject::resume() {} | |
| 65 | |
| 66 void ActiveDOMObject::didMoveToNewExecutionContext(ExecutionContext* context) { | |
| 67 setContext(context); | |
| 68 | |
| 69 if (context->isContextDestroyed()) { | |
| 70 contextDestroyed(); | |
| 71 return; | |
| 72 } | |
| 73 | |
| 74 if (context->activeDOMObjectsAreSuspended()) { | |
| 75 suspend(); | |
| 76 return; | |
| 77 } | |
| 78 | |
| 79 resume(); | |
| 80 } | |
| 81 | |
| 82 } // namespace blink | |
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Chromium Code Reviews
Issue 2567913002:
Rename ActiveDOMObject to SuspendableObject (Closed)
