mirror of
https://github.com/classilla/tenfourfox.git
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199 lines
4.8 KiB
C++
199 lines
4.8 KiB
C++
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/* -*- 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 "SharedWorker.h"
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#include "nsPIDOMWindow.h"
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#include "mozilla/EventDispatcher.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/dom/MessagePort.h"
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#include "mozilla/dom/SharedWorkerBinding.h"
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#include "nsContentUtils.h"
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#include "nsIClassInfoImpl.h"
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#include "nsIDOMEvent.h"
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#include "RuntimeService.h"
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#include "WorkerPrivate.h"
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using mozilla::dom::Optional;
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using mozilla::dom::Sequence;
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using namespace mozilla;
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USING_WORKERS_NAMESPACE
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SharedWorker::SharedWorker(nsPIDOMWindow* aWindow,
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WorkerPrivate* aWorkerPrivate,
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MessagePort* aMessagePort)
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: DOMEventTargetHelper(aWindow)
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, mWorkerPrivate(aWorkerPrivate)
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, mMessagePort(aMessagePort)
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, mFrozen(false)
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(aWorkerPrivate);
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MOZ_ASSERT(aMessagePort);
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}
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SharedWorker::~SharedWorker()
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{
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AssertIsOnMainThread();
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}
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// static
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already_AddRefed<SharedWorker>
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SharedWorker::Constructor(const GlobalObject& aGlobal, JSContext* aCx,
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const nsAString& aScriptURL,
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const mozilla::dom::Optional<nsAString>& aName,
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ErrorResult& aRv)
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{
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AssertIsOnMainThread();
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RuntimeService* rts = RuntimeService::GetOrCreateService();
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if (!rts) {
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aRv = NS_ERROR_NOT_AVAILABLE;
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return nullptr;
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}
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nsCString name;
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if (aName.WasPassed()) {
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name = NS_ConvertUTF16toUTF8(aName.Value());
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}
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RefPtr<SharedWorker> sharedWorker;
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nsresult rv = rts->CreateSharedWorker(aGlobal, aScriptURL, name,
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getter_AddRefs(sharedWorker));
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if (NS_FAILED(rv)) {
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aRv = rv;
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return nullptr;
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}
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return sharedWorker.forget();
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}
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MessagePort*
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SharedWorker::Port()
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{
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AssertIsOnMainThread();
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return mMessagePort;
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}
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void
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SharedWorker::Freeze()
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(!IsFrozen());
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mFrozen = true;
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}
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void
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SharedWorker::Thaw()
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(IsFrozen());
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mFrozen = false;
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if (!mFrozenEvents.IsEmpty()) {
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nsTArray<nsCOMPtr<nsIDOMEvent>> events;
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mFrozenEvents.SwapElements(events);
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for (uint32_t index = 0; index < events.Length(); index++) {
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nsCOMPtr<nsIDOMEvent>& event = events[index];
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MOZ_ASSERT(event);
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nsCOMPtr<nsIDOMEventTarget> target;
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if (NS_SUCCEEDED(event->GetTarget(getter_AddRefs(target)))) {
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bool ignored;
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if (NS_FAILED(target->DispatchEvent(event, &ignored))) {
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NS_WARNING("Failed to dispatch event!");
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}
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} else {
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NS_WARNING("Failed to get target!");
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}
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}
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}
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}
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void
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SharedWorker::QueueEvent(nsIDOMEvent* aEvent)
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{
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AssertIsOnMainThread();
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MOZ_ASSERT(aEvent);
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MOZ_ASSERT(IsFrozen());
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mFrozenEvents.AppendElement(aEvent);
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}
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void
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SharedWorker::Close()
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{
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AssertIsOnMainThread();
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if (mMessagePort) {
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mMessagePort->Close();
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}
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}
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void
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SharedWorker::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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AssertIsOnMainThread();
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MOZ_ASSERT(mWorkerPrivate);
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MOZ_ASSERT(mMessagePort);
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mMessagePort->PostMessage(aCx, aMessage, aTransferable, aRv);
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}
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NS_IMPL_ADDREF_INHERITED(SharedWorker, DOMEventTargetHelper)
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NS_IMPL_RELEASE_INHERITED(SharedWorker, DOMEventTargetHelper)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(SharedWorker)
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NS_INTERFACE_MAP_END_INHERITING(DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_CLASS(SharedWorker)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(SharedWorker,
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DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMessagePort)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFrozenEvents)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(SharedWorker,
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DOMEventTargetHelper)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mMessagePort)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mFrozenEvents)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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JSObject*
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SharedWorker::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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AssertIsOnMainThread();
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return SharedWorkerBinding::Wrap(aCx, this, aGivenProto);
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}
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nsresult
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SharedWorker::PreHandleEvent(EventChainPreVisitor& aVisitor)
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{
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AssertIsOnMainThread();
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nsIDOMEvent*& event = aVisitor.mDOMEvent;
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if (IsFrozen() && event) {
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QueueEvent(event);
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aVisitor.mCanHandle = false;
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aVisitor.mParentTarget = nullptr;
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return NS_OK;
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}
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return DOMEventTargetHelper::PreHandleEvent(aVisitor);
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}
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