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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 "config.h"
     28 #include "ActiveDOMObject.h"
     29 
     30 #include "ScriptExecutionContext.h"
     31 #include "WorkerContext.h"
     32 #include "WorkerThread.h"
     33 
     34 namespace WebCore {
     35 
     36 ActiveDOMObject::ActiveDOMObject(ScriptExecutionContext* scriptExecutionContext, void* upcastPointer)
     37     : m_scriptExecutionContext(scriptExecutionContext)
     38     , m_pendingActivityCount(0)
     39 {
     40 #if ENABLE(WORKERS)
     41     ASSERT((m_scriptExecutionContext->isDocument() && isMainThread())
     42         || (m_scriptExecutionContext->isWorkerContext() && currentThread() == static_cast<WorkerContext*>(m_scriptExecutionContext)->thread()->threadID()));
     43 #endif
     44 
     45     m_scriptExecutionContext->createdActiveDOMObject(this, upcastPointer);
     46 }
     47 
     48 ActiveDOMObject::~ActiveDOMObject()
     49 {
     50     if (m_scriptExecutionContext) {
     51 #if ENABLE(WORKERS)
     52         ASSERT((m_scriptExecutionContext->isDocument() && isMainThread())
     53             || (m_scriptExecutionContext->isWorkerContext() && currentThread() == static_cast<WorkerContext*>(m_scriptExecutionContext)->thread()->threadID()));
     54 #endif
     55 
     56         m_scriptExecutionContext->destroyedActiveDOMObject(this);
     57     }
     58 }
     59 
     60 bool ActiveDOMObject::hasPendingActivity() const
     61 {
     62     return m_pendingActivityCount;
     63 }
     64 
     65 void ActiveDOMObject::contextDestroyed()
     66 {
     67     m_scriptExecutionContext = 0;
     68 }
     69 
     70 bool ActiveDOMObject::canSuspend() const
     71 {
     72     return false;
     73 }
     74 
     75 void ActiveDOMObject::suspend()
     76 {
     77 }
     78 
     79 void ActiveDOMObject::resume()
     80 {
     81 }
     82 
     83 void ActiveDOMObject::stop()
     84 {
     85 }
     86 
     87 } // namespace WebCore
     88