| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "ServiceWorker.h" |
| |
| #include "bindings/v8/ExceptionState.h" |
| #include "bindings/v8/ScriptPromiseResolverWithContext.h" |
| #include "bindings/v8/ScriptState.h" |
| #include "core/dom/MessagePort.h" |
| #include "modules/EventTargetModules.h" |
| #include "platform/NotImplemented.h" |
| #include "public/platform/WebMessagePortChannel.h" |
| #include "public/platform/WebServiceWorkerState.h" |
| #include "public/platform/WebString.h" |
| #include <v8.h> |
| |
| namespace WebCore { |
| |
| class ServiceWorker::ThenFunction FINAL : public ScriptFunction { |
| public: |
| static PassOwnPtr<ScriptFunction> create(PassRefPtr<ServiceWorker> observer) |
| { |
| ExecutionContext* executionContext = observer->executionContext(); |
| return adoptPtr(new ThenFunction(toIsolate(executionContext), observer)); |
| } |
| private: |
| ThenFunction(v8::Isolate* isolate, PassRefPtr<ServiceWorker> observer) |
| : ScriptFunction(isolate) |
| , m_observer(observer) |
| { |
| } |
| |
| virtual ScriptValue call(ScriptValue value) OVERRIDE |
| { |
| m_observer->onPromiseResolved(); |
| return value; |
| } |
| |
| RefPtr<ServiceWorker> m_observer; |
| }; |
| |
| const AtomicString& ServiceWorker::interfaceName() const |
| { |
| return EventTargetNames::ServiceWorker; |
| } |
| |
| void ServiceWorker::postMessage(PassRefPtr<SerializedScriptValue> message, const MessagePortArray* ports, ExceptionState& exceptionState) |
| { |
| // Disentangle the port in preparation for sending it to the remote context. |
| OwnPtr<MessagePortChannelArray> channels = MessagePort::disentanglePorts(ports, exceptionState); |
| if (exceptionState.hadException()) |
| return; |
| |
| blink::WebString messageString = message->toWireString(); |
| OwnPtr<blink::WebMessagePortChannelArray> webChannels = MessagePort::toWebMessagePortChannelArray(channels.release()); |
| m_outerWorker->postMessage(messageString, webChannels.leakPtr()); |
| } |
| |
| bool ServiceWorker::isReady() |
| { |
| return m_proxyState == Ready; |
| } |
| |
| void ServiceWorker::dispatchStateChangeEvent() |
| { |
| ASSERT(isReady()); |
| this->dispatchEvent(Event::create(EventTypeNames::statechange)); |
| } |
| |
| String ServiceWorker::scope() const |
| { |
| return m_outerWorker->scope().string(); |
| } |
| |
| String ServiceWorker::url() const |
| { |
| return m_outerWorker->url().string(); |
| } |
| |
| const AtomicString& ServiceWorker::state() const |
| { |
| DEFINE_STATIC_LOCAL(AtomicString, unknown, ("unknown", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(AtomicString, parsed, ("parsed", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(AtomicString, installing, ("installing", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(AtomicString, installed, ("installed", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(AtomicString, activating, ("activating", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(AtomicString, active, ("active", AtomicString::ConstructFromLiteral)); |
| DEFINE_STATIC_LOCAL(AtomicString, deactivated, ("deactivated", AtomicString::ConstructFromLiteral)); |
| |
| switch (m_outerWorker->state()) { |
| case blink::WebServiceWorkerStateUnknown: |
| // The web platform should never see this internal state |
| ASSERT_NOT_REACHED(); |
| return unknown; |
| case blink::WebServiceWorkerStateParsed: |
| return parsed; |
| case blink::WebServiceWorkerStateInstalling: |
| return installing; |
| case blink::WebServiceWorkerStateInstalled: |
| return installed; |
| case blink::WebServiceWorkerStateActivating: |
| return activating; |
| case blink::WebServiceWorkerStateActive: |
| return active; |
| case blink::WebServiceWorkerStateDeactivated: |
| return deactivated; |
| default: |
| ASSERT_NOT_REACHED(); |
| return nullAtom; |
| } |
| } |
| |
| PassRefPtr<ServiceWorker> ServiceWorker::from(ExecutionContext* executionContext, WebType* worker) |
| { |
| if (!worker) |
| return PassRefPtr<ServiceWorker>(); |
| |
| blink::WebServiceWorkerProxy* proxy = worker->proxy(); |
| ServiceWorker* existingServiceWorker = proxy ? proxy->unwrap() : 0; |
| if (existingServiceWorker) { |
| ASSERT(existingServiceWorker->executionContext() == executionContext); |
| return existingServiceWorker; |
| } |
| |
| return create(executionContext, adoptPtr(worker)); |
| } |
| |
| PassRefPtr<ServiceWorker> ServiceWorker::from(ScriptPromiseResolverWithContext* resolver, WebType* worker) |
| { |
| RefPtr<ServiceWorker> serviceWorker = ServiceWorker::from(resolver->scriptState()->executionContext(), worker); |
| ScriptState::Scope scope(resolver->scriptState()); |
| serviceWorker->waitOnPromise(resolver->promise()); |
| return serviceWorker; |
| } |
| |
| void ServiceWorker::setProxyState(ProxyState state) |
| { |
| if (m_proxyState == state) |
| return; |
| switch (m_proxyState) { |
| case Initial: |
| ASSERT(state == RegisterPromisePending || state == ContextStopped); |
| break; |
| case RegisterPromisePending: |
| ASSERT(state == Ready || state == ContextStopped); |
| break; |
| case Ready: |
| ASSERT(state == ContextStopped); |
| break; |
| case ContextStopped: |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| |
| ProxyState oldState = m_proxyState; |
| m_proxyState = state; |
| if (oldState == Ready || state == Ready) |
| m_outerWorker->proxyReadyChanged(); |
| } |
| |
| void ServiceWorker::onPromiseResolved() |
| { |
| if (m_proxyState == ContextStopped) |
| return; |
| setProxyState(Ready); |
| } |
| |
| void ServiceWorker::waitOnPromise(ScriptPromise promise) |
| { |
| if (promise.isEmpty()) { |
| // The document was detached during registration. The state doesn't really |
| // matter since this ServiceWorker will immediately die. |
| setProxyState(ContextStopped); |
| return; |
| } |
| setProxyState(RegisterPromisePending); |
| promise.then(ThenFunction::create(this)); |
| } |
| |
| bool ServiceWorker::hasPendingActivity() const |
| { |
| if (AbstractWorker::hasPendingActivity()) |
| return true; |
| if (m_proxyState == ContextStopped) |
| return false; |
| return m_outerWorker->state() != blink::WebServiceWorkerStateDeactivated; |
| } |
| |
| void ServiceWorker::stop() |
| { |
| setProxyState(ContextStopped); |
| } |
| |
| PassRefPtr<ServiceWorker> ServiceWorker::create(ExecutionContext* executionContext, PassOwnPtr<blink::WebServiceWorker> outerWorker) |
| { |
| RefPtr<ServiceWorker> worker = adoptRef(new ServiceWorker(executionContext, outerWorker)); |
| worker->suspendIfNeeded(); |
| return worker.release(); |
| } |
| |
| ServiceWorker::ServiceWorker(ExecutionContext* executionContext, PassOwnPtr<blink::WebServiceWorker> worker) |
| : AbstractWorker(executionContext) |
| , WebServiceWorkerProxy(this) |
| , m_outerWorker(worker) |
| , m_proxyState(Initial) |
| { |
| ScriptWrappable::init(this); |
| ASSERT(m_outerWorker); |
| m_outerWorker->setProxy(this); |
| } |
| |
| } // namespace WebCore |