gecko-dev/dom/workers/SharedWorker.h
2018-04-05 13:42:41 -04:00

107 lines
2.4 KiB
C++

/* -*- 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/. */
#ifndef mozilla_dom_workers_sharedworker_h__
#define mozilla_dom_workers_sharedworker_h__
#include "WorkerCommon.h"
#include "mozilla/dom/BindingDeclarations.h"
#include "mozilla/DOMEventTargetHelper.h"
#ifdef XP_WIN
#undef PostMessage
#endif
class nsPIDOMWindowInner;
namespace mozilla {
class EventChainPreVisitor;
namespace dom {
class MessagePort;
class StringOrWorkerOptions;
class WorkerPrivate;
class Event;
namespace workerinternals {
class RuntimeService;
}
class SharedWorker final : public DOMEventTargetHelper
{
friend class workerinternals::RuntimeService;
typedef mozilla::ErrorResult ErrorResult;
typedef mozilla::dom::GlobalObject GlobalObject;
RefPtr<WorkerPrivate> mWorkerPrivate;
RefPtr<MessagePort> mMessagePort;
nsTArray<RefPtr<Event>> mFrozenEvents;
bool mFrozen;
public:
static already_AddRefed<SharedWorker>
Constructor(const GlobalObject& aGlobal, const nsAString& aScriptURL,
const StringOrWorkerOptions& aOptions, ErrorResult& aRv);
MessagePort*
Port();
bool
IsFrozen() const
{
return mFrozen;
}
void
Freeze();
void
Thaw();
void
QueueEvent(Event* aEvent);
void
Close();
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SharedWorker, DOMEventTargetHelper)
IMPL_EVENT_HANDLER(error)
virtual JSObject*
WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
void GetEventTargetParent(EventChainPreVisitor& aVisitor) override;
WorkerPrivate*
GetWorkerPrivate() const
{
return mWorkerPrivate;
}
private:
// This class can only be created from the RuntimeService.
SharedWorker(nsPIDOMWindowInner* aWindow,
WorkerPrivate* aWorkerPrivate,
MessagePort* aMessagePort);
// This class is reference-counted and will be destroyed from Release().
~SharedWorker();
// Only called by MessagePort.
void
PostMessage(JSContext* aCx, JS::Handle<JS::Value> aMessage,
const Sequence<JSObject*>& aTransferable, ErrorResult& aRv);
};
} // dom namespace
} // mozilla namespace
#endif // mozilla_dom_workers_sharedworker_h__