зеркало из https://github.com/mozilla/gecko-dev.git
80 строки
2.8 KiB
C++
80 строки
2.8 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_workers_NetworkLoadHandler_h__
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#define mozilla_dom_workers_NetworkLoadHandler_h__
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#include "nsIStreamLoader.h"
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#include "mozilla/dom/WorkerLoadContext.h"
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#include "mozilla/dom/ScriptLoadHandler.h"
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#include "mozilla/dom/WorkerRef.h"
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namespace mozilla::dom::workerinternals::loader {
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class WorkerScriptLoader;
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/*
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* [DOMDOC] NetworkLoadHandler for Workers
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*
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* A LoadHandler is a ScriptLoader helper class that reacts to an
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* nsIStreamLoader's events for
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* loading JS scripts. It is primarily responsible for decoding the stream into
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* UTF8 or UTF16. Additionally, it takes care of any work that needs to follow
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* the completion of a stream. Every LoadHandler also manages additional tasks
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* for the type of load that it is doing.
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*
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* As part of worker loading we have an number of tasks that we need to take
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* care of after a successfully completed stream, including setting a final URI
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* on the WorkerPrivate if we have loaded a main script, or handling CSP issues.
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* These are handled in DataReceivedFromNetwork, and implement roughly the same
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* set of tasks as you will find in the CacheLoadhandler, which has a companion
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* method DataReceivedFromcache.
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*
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* In the worker context, the LoadHandler is run on the main thread, and all
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* work in this file ultimately is done by the main thread, including decoding.
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*
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*/
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class NetworkLoadHandler final : public nsIStreamLoaderObserver,
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public nsIRequestObserver {
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public:
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NS_DECL_ISUPPORTS
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NetworkLoadHandler(WorkerScriptLoader* aLoader,
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ThreadSafeRequestHandle* aRequestHandle);
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NS_IMETHOD
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OnStreamComplete(nsIStreamLoader* aLoader, nsISupports* aContext,
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nsresult aStatus, uint32_t aStringLen,
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const uint8_t* aString) override;
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nsresult DataReceivedFromNetwork(nsIStreamLoader* aLoader, nsresult aStatus,
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uint32_t aStringLen, const uint8_t* aString);
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NS_IMETHOD
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OnStartRequest(nsIRequest* aRequest) override;
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nsresult PrepareForRequest(nsIRequest* aRequest);
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NS_IMETHOD
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OnStopRequest(nsIRequest* aRequest, nsresult aStatusCode) override {
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// Nothing to do here!
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return NS_OK;
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}
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private:
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~NetworkLoadHandler() = default;
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RefPtr<WorkerScriptLoader> mLoader;
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UniquePtr<ScriptDecoder> mDecoder;
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RefPtr<ThreadSafeWorkerRef> mWorkerRef;
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RefPtr<ThreadSafeRequestHandle> mRequestHandle;
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};
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} // namespace mozilla::dom::workerinternals::loader
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#endif /* mozilla_dom_workers_NetworkLoadHandler_h__ */
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