зеркало из https://github.com/mozilla/gecko-dev.git
80 строки
2.5 KiB
C++
80 строки
2.5 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 "FetchObserver.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/EventBinding.h"
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namespace mozilla::dom {
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NS_IMPL_CYCLE_COLLECTION_CLASS(FetchObserver)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(FetchObserver,
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DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(FetchObserver,
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DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FetchObserver)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_ADDREF_INHERITED(FetchObserver, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(FetchObserver, DOMEventTargetHelper)
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FetchObserver::FetchObserver(nsIGlobalObject* aGlobal,
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AbortSignalImpl* aSignalImpl)
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: DOMEventTargetHelper(aGlobal), mState(FetchState::Requesting) {
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if (aSignalImpl) {
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Follow(aSignalImpl);
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}
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}
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JSObject* FetchObserver::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return FetchObserver_Binding::Wrap(aCx, this, aGivenProto);
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}
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FetchState FetchObserver::State() const { return mState; }
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void FetchObserver::RunAbortAlgorithm() { SetState(FetchState::Aborted); }
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void FetchObserver::SetState(FetchState aState) {
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MOZ_ASSERT(mState < aState);
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if (mState == FetchState::Aborted || mState == FetchState::Errored ||
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mState == FetchState::Complete) {
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// We are already in a final state.
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return;
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}
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// We cannot pass from Requesting to Complete directly.
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if (mState == FetchState::Requesting && aState == FetchState::Complete) {
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SetState(FetchState::Responding);
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}
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mState = aState;
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if (mState == FetchState::Aborted || mState == FetchState::Errored ||
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mState == FetchState::Complete) {
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Unfollow();
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}
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EventInit init;
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init.mBubbles = false;
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init.mCancelable = false;
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// TODO which kind of event should we dispatch here?
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RefPtr<Event> event = Event::Constructor(this, u"statechange"_ns, init);
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event->SetTrusted(true);
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DispatchEvent(*event);
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}
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} // namespace mozilla::dom
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