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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "FetchController.h"
#include "FetchSignal.h"
#include "mozilla/dom/FetchControllerBinding.h"
#include "WorkerPrivate.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(FetchController, mGlobal, mSignal,
mFollowingSignal)
NS_IMPL_CYCLE_COLLECTING_ADDREF(FetchController)
NS_IMPL_CYCLE_COLLECTING_RELEASE(FetchController)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FetchController)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
/* static */ bool
FetchController::IsEnabled(JSContext* aCx, JSObject* aGlobal)
{
if (NS_IsMainThread()) {
return Preferences::GetBool("dom.fetchController.enabled", false);
}
using namespace workers;
// Otherwise, check the pref via the WorkerPrivate
WorkerPrivate* workerPrivate = GetWorkerPrivateFromContext(aCx);
if (!workerPrivate) {
return false;
}
return workerPrivate->FetchControllerEnabled();
}
/* static */ already_AddRefed<FetchController>
FetchController::Constructor(const GlobalObject& aGlobal, ErrorResult& aRv)
{
nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
if (!global) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<FetchController> fetchController = new FetchController(global);
return fetchController.forget();
}
FetchController::FetchController(nsIGlobalObject* aGlobal)
: mGlobal(aGlobal)
, mAborted(false)
{}
JSObject*
FetchController::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
{
return FetchControllerBinding::Wrap(aCx, this, aGivenProto);
}
nsIGlobalObject*
FetchController::GetParentObject() const
{
return mGlobal;
}
FetchSignal*
FetchController::Signal()
{
if (!mSignal) {
mSignal = new FetchSignal(this, mAborted);
}
return mSignal;
}
void
FetchController::Abort()
{
if (mAborted) {
return;
}
mAborted = true;
if (mSignal) {
mSignal->Abort();
}
}
void
FetchController::Follow(FetchSignal& aSignal)
{
FetchSignal::Follower::Follow(&aSignal);
}
void
FetchController::Unfollow(FetchSignal& aSignal)
{
if (mFollowingSignal != &aSignal) {
return;
}
FetchSignal::Follower::Unfollow();
}
FetchSignal*
FetchController::Following() const
{
return mFollowingSignal;
}
void
FetchController::Aborted()
{
Abort();
}
} // dom namespace
} // mozilla namespace
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