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| 1 /* | 1 /* |
| 2 * Copyright (C) 2008, 2010 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2008, 2010 Apple Inc. All Rights Reserved. |
| 3 * Copyright (C) 2009 Google Inc. All Rights Reserved. | 3 * Copyright (C) 2009 Google Inc. All Rights Reserved. |
| 4 * | 4 * |
| 5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
| 6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
| 7 * are met: | 7 * are met: |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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| 44 | 44 |
| 45 namespace WebCore { | 45 namespace WebCore { |
| 46 | 46 |
| 47 inline Worker::Worker(ExecutionContext* context) | 47 inline Worker::Worker(ExecutionContext* context) |
| 48 : AbstractWorker(context) | 48 : AbstractWorker(context) |
| 49 , m_contextProxy(WorkerGlobalScopeProxy::create(this)) | 49 , m_contextProxy(WorkerGlobalScopeProxy::create(this)) |
| 50 { | 50 { |
| 51 ScriptWrappable::init(this); | 51 ScriptWrappable::init(this); |
| 52 } | 52 } |
| 53 | 53 |
| 54 PassRefPtr<Worker> Worker::create(ExecutionContext* context, const String& url,
ExceptionState& es) | 54 PassRefPtr<Worker> Worker::create(ExecutionContext* context, const String& url,
ExceptionState& exceptionState) |
| 55 { | 55 { |
| 56 ASSERT(isMainThread()); | 56 ASSERT(isMainThread()); |
| 57 UseCounter::count(toDocument(context)->domWindow(), UseCounter::WorkerStart)
; | 57 UseCounter::count(toDocument(context)->domWindow(), UseCounter::WorkerStart)
; |
| 58 | 58 |
| 59 RefPtr<Worker> worker = adoptRef(new Worker(context)); | 59 RefPtr<Worker> worker = adoptRef(new Worker(context)); |
| 60 | 60 |
| 61 worker->suspendIfNeeded(); | 61 worker->suspendIfNeeded(); |
| 62 | 62 |
| 63 KURL scriptURL = worker->resolveURL(url, es); | 63 KURL scriptURL = worker->resolveURL(url, exceptionState); |
| 64 if (scriptURL.isEmpty()) | 64 if (scriptURL.isEmpty()) |
| 65 return 0; | 65 return 0; |
| 66 | 66 |
| 67 // The worker context does not exist while loading, so we must ensure that t
he worker object is not collected, nor are its event listeners. | 67 // The worker context does not exist while loading, so we must ensure that t
he worker object is not collected, nor are its event listeners. |
| 68 worker->setPendingActivity(worker.get()); | 68 worker->setPendingActivity(worker.get()); |
| 69 | 69 |
| 70 worker->m_scriptLoader = WorkerScriptLoader::create(); | 70 worker->m_scriptLoader = WorkerScriptLoader::create(); |
| 71 worker->m_scriptLoader->loadAsynchronously(context, scriptURL, DenyCrossOrig
inRequests, worker.get()); | 71 worker->m_scriptLoader->loadAsynchronously(context, scriptURL, DenyCrossOrig
inRequests, worker.get()); |
| 72 | 72 |
| 73 return worker.release(); | 73 return worker.release(); |
| 74 } | 74 } |
| 75 | 75 |
| 76 Worker::~Worker() | 76 Worker::~Worker() |
| 77 { | 77 { |
| 78 ASSERT(isMainThread()); | 78 ASSERT(isMainThread()); |
| 79 ASSERT(executionContext()); // The context is protected by worker context pr
oxy, so it cannot be destroyed while a Worker exists. | 79 ASSERT(executionContext()); // The context is protected by worker context pr
oxy, so it cannot be destroyed while a Worker exists. |
| 80 m_contextProxy->workerObjectDestroyed(); | 80 m_contextProxy->workerObjectDestroyed(); |
| 81 } | 81 } |
| 82 | 82 |
| 83 const AtomicString& Worker::interfaceName() const | 83 const AtomicString& Worker::interfaceName() const |
| 84 { | 84 { |
| 85 return EventTargetNames::Worker; | 85 return EventTargetNames::Worker; |
| 86 } | 86 } |
| 87 | 87 |
| 88 void Worker::postMessage(PassRefPtr<SerializedScriptValue> message, const Messag
ePortArray* ports, ExceptionState& es) | 88 void Worker::postMessage(PassRefPtr<SerializedScriptValue> message, const Messag
ePortArray* ports, ExceptionState& exceptionState) |
| 89 { | 89 { |
| 90 // Disentangle the port in preparation for sending it to the remote context. | 90 // Disentangle the port in preparation for sending it to the remote context. |
| 91 OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(por
ts, es); | 91 OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(por
ts, exceptionState); |
| 92 if (es.hadException()) | 92 if (exceptionState.hadException()) |
| 93 return; | 93 return; |
| 94 m_contextProxy->postMessageToWorkerGlobalScope(message, channels.release()); | 94 m_contextProxy->postMessageToWorkerGlobalScope(message, channels.release()); |
| 95 } | 95 } |
| 96 | 96 |
| 97 void Worker::terminate() | 97 void Worker::terminate() |
| 98 { | 98 { |
| 99 m_contextProxy->terminateWorkerGlobalScope(); | 99 m_contextProxy->terminateWorkerGlobalScope(); |
| 100 } | 100 } |
| 101 | 101 |
| 102 void Worker::stop() | 102 void Worker::stop() |
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| 124 startMode = PauseWorkerGlobalScopeOnStart; | 124 startMode = PauseWorkerGlobalScopeOnStart; |
| 125 m_contextProxy->startWorkerGlobalScope(m_scriptLoader->url(), executionC
ontext()->userAgent(m_scriptLoader->url()), m_scriptLoader->script(), startMode)
; | 125 m_contextProxy->startWorkerGlobalScope(m_scriptLoader->url(), executionC
ontext()->userAgent(m_scriptLoader->url()), m_scriptLoader->script(), startMode)
; |
| 126 InspectorInstrumentation::scriptImported(executionContext(), m_scriptLoa
der->identifier(), m_scriptLoader->script()); | 126 InspectorInstrumentation::scriptImported(executionContext(), m_scriptLoa
der->identifier(), m_scriptLoader->script()); |
| 127 } | 127 } |
| 128 m_scriptLoader = nullptr; | 128 m_scriptLoader = nullptr; |
| 129 | 129 |
| 130 unsetPendingActivity(this); | 130 unsetPendingActivity(this); |
| 131 } | 131 } |
| 132 | 132 |
| 133 } // namespace WebCore | 133 } // namespace WebCore |
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