зеркало из https://github.com/mozilla/gecko-dev.git
127 строки
2.6 KiB
C++
127 строки
2.6 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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#include "FetchController.h"
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#include "FetchSignal.h"
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#include "mozilla/dom/FetchControllerBinding.h"
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namespace mozilla {
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namespace dom {
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(FetchController, mGlobal, mSignal,
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mFollowingSignal)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(FetchController)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(FetchController)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FetchController)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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/* static */ bool
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FetchController::IsEnabled(JSContext* aCx, JSObject* aGlobal)
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{
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if (NS_IsMainThread()) {
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return Preferences::GetBool("dom.fetchController.enabled", false);
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}
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using namespace workers;
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// Otherwise, check the pref via the WorkerPrivate
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WorkerPrivate* workerPrivate = GetWorkerPrivateFromContext(aCx);
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if (!workerPrivate) {
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return false;
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}
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return workerPrivate->FetchControllerEnabled();
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}
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/* static */ already_AddRefed<FetchController>
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FetchController::Constructor(const GlobalObject& aGlobal, ErrorResult& aRv)
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{
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nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
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if (!global) {
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aRv.Throw(NS_ERROR_FAILURE);
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return nullptr;
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}
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RefPtr<FetchController> fetchController = new FetchController(global);
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return fetchController.forget();
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}
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FetchController::FetchController(nsIGlobalObject* aGlobal)
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: mGlobal(aGlobal)
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, mAborted(false)
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{}
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JSObject*
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FetchController::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return FetchControllerBinding::Wrap(aCx, this, aGivenProto);
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}
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nsIGlobalObject*
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FetchController::GetParentObject() const
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{
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return mGlobal;
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}
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FetchSignal*
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FetchController::Signal()
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{
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if (!mSignal) {
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mSignal = new FetchSignal(this, mAborted);
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}
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return mSignal;
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}
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void
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FetchController::Abort()
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{
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if (mAborted) {
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return;
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}
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mAborted = true;
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if (mSignal) {
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mSignal->Abort();
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}
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}
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void
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FetchController::Follow(FetchSignal& aSignal)
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{
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FetchSignal::Follower::Follow(&aSignal);
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}
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void
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FetchController::Unfollow(FetchSignal& aSignal)
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{
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if (mFollowingSignal != &aSignal) {
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return;
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}
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FetchSignal::Follower::Unfollow();
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}
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FetchSignal*
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FetchController::Following() const
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{
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return mFollowingSignal;
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}
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void
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FetchController::Aborted()
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{
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Abort();
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}
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} // dom namespace
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} // mozilla namespace
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