зеркало из https://github.com/mozilla/gecko-dev.git
131 строка
3.8 KiB
C++
131 строка
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ServiceWorker.h"
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#include "nsPIDOMWindow.h"
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#include "ServiceWorkerClient.h"
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#include "ServiceWorkerManager.h"
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#include "SharedWorker.h"
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#include "WorkerPrivate.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/ServiceWorkerGlobalScopeBinding.h"
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#ifdef XP_WIN
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#undef PostMessage
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#endif
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using mozilla::ErrorResult;
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using namespace mozilla::dom;
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namespace mozilla {
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namespace dom {
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namespace workers {
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bool
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ServiceWorkerVisible(JSContext* aCx, JSObject* aObj)
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{
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if (NS_IsMainThread()) {
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return Preferences::GetBool("dom.serviceWorkers.enabled", false);
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}
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ServiceWorkerGlobalScope* scope = nullptr;
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nsresult rv = UnwrapObject<prototypes::id::ServiceWorkerGlobalScope_workers,
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mozilla::dom::ServiceWorkerGlobalScopeBinding_workers::NativeType>(aObj, scope);
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return NS_SUCCEEDED(rv);
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}
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ServiceWorker::ServiceWorker(nsPIDOMWindow* aWindow,
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ServiceWorkerInfo* aInfo,
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SharedWorker* aSharedWorker)
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: DOMEventTargetHelper(aWindow),
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mInfo(aInfo),
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mSharedWorker(aSharedWorker)
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(aInfo);
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MOZ_ASSERT(mSharedWorker);
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// This will update our state too.
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mInfo->AppendWorker(this);
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}
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ServiceWorker::~ServiceWorker()
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{
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AssertIsOnMainThread();
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mInfo->RemoveWorker(this);
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}
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NS_IMPL_ADDREF_INHERITED(ServiceWorker, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(ServiceWorker, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ServiceWorker)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_INHERITED(ServiceWorker, DOMEventTargetHelper,
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mSharedWorker)
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JSObject*
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ServiceWorker::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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AssertIsOnMainThread();
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return ServiceWorkerBinding::Wrap(aCx, this, aGivenProto);
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}
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void
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ServiceWorker::GetScriptURL(nsString& aURL) const
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{
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CopyUTF8toUTF16(mInfo->ScriptSpec(), aURL);
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}
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void
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ServiceWorker::PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage,
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const Optional<Sequence<JS::Value>>& aTransferable,
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ErrorResult& aRv)
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{
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WorkerPrivate* workerPrivate = GetWorkerPrivate();
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MOZ_ASSERT(workerPrivate);
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if (State() == ServiceWorkerState::Redundant) {
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aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
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return;
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}
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nsCOMPtr<nsPIDOMWindow> window = do_QueryInterface(GetParentObject());
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nsCOMPtr<nsIDocument> doc = window->GetExtantDoc();
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nsAutoPtr<ServiceWorkerClientInfo> clientInfo(new ServiceWorkerClientInfo(doc));
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workerPrivate->PostMessageToServiceWorker(aCx, aMessage, aTransferable,
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clientInfo, aRv);
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}
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WorkerPrivate*
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ServiceWorker::GetWorkerPrivate() const
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{
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// At some point in the future, this may be optimized to terminate a worker
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// that hasn't been used in a certain amount of time or when there is memory
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// pressure or similar.
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MOZ_ASSERT(mSharedWorker);
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return mSharedWorker->GetWorkerPrivate();
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}
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void
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ServiceWorker::QueueStateChangeEvent(ServiceWorkerState aState)
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{
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nsCOMPtr<nsIRunnable> r =
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NS_NewRunnableMethodWithArg<ServiceWorkerState>(this,
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&ServiceWorker::DispatchStateChange,
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aState);
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MOZ_ALWAYS_TRUE(NS_SUCCEEDED(NS_DispatchToMainThread(r)));
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}
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} // namespace workers
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} // namespace dom
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} // namespace mozilla
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