mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 00:25:27 +00:00
115 lines
2.9 KiB
C++
115 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* 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_MessagePort_h
|
|
#define mozilla_dom_MessagePort_h
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/DOMEventTargetHelper.h"
|
|
|
|
class nsPIDOMWindow;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
|
|
class DispatchEventRunnable;
|
|
class PostMessageRunnable;
|
|
|
|
class MessagePortBase : public DOMEventTargetHelper
|
|
{
|
|
protected:
|
|
explicit MessagePortBase(nsPIDOMWindow* aWindow);
|
|
MessagePortBase();
|
|
|
|
public:
|
|
|
|
virtual void
|
|
PostMessageMoz(JSContext* aCx, JS::Handle<JS::Value> aMessage,
|
|
const Optional<Sequence<JS::Value>>& aTransferable,
|
|
ErrorResult& aRv) = 0;
|
|
|
|
virtual void
|
|
Start() = 0;
|
|
|
|
virtual void
|
|
Close() = 0;
|
|
|
|
// The 'message' event handler has to call |Start()| method, so we
|
|
// cannot use IMPL_EVENT_HANDLER macro here.
|
|
virtual EventHandlerNonNull*
|
|
GetOnmessage() = 0;
|
|
|
|
virtual void
|
|
SetOnmessage(EventHandlerNonNull* aCallback) = 0;
|
|
|
|
// Duplicate this message port. This method is used by the Structured Clone
|
|
// Algorithm and makes the new MessagePort active with the entangled
|
|
// MessagePort of this object.
|
|
virtual already_AddRefed<MessagePortBase>
|
|
Clone() = 0;
|
|
};
|
|
|
|
class MessagePort MOZ_FINAL : public MessagePortBase
|
|
{
|
|
friend class DispatchEventRunnable;
|
|
friend class PostMessageRunnable;
|
|
|
|
public:
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MessagePort,
|
|
DOMEventTargetHelper)
|
|
|
|
explicit MessagePort(nsPIDOMWindow* aWindow);
|
|
|
|
virtual JSObject*
|
|
WrapObject(JSContext* aCx) MOZ_OVERRIDE;
|
|
|
|
virtual void
|
|
PostMessageMoz(JSContext* aCx, JS::Handle<JS::Value> aMessage,
|
|
const Optional<Sequence<JS::Value>>& aTransferable,
|
|
ErrorResult& aRv) MOZ_OVERRIDE;
|
|
|
|
virtual void
|
|
Start() MOZ_OVERRIDE;
|
|
|
|
virtual void
|
|
Close() MOZ_OVERRIDE;
|
|
|
|
virtual EventHandlerNonNull*
|
|
GetOnmessage() MOZ_OVERRIDE;
|
|
|
|
virtual void
|
|
SetOnmessage(EventHandlerNonNull* aCallback) MOZ_OVERRIDE;
|
|
|
|
// Non WebIDL methods
|
|
|
|
// This method entangles this MessagePort with another one.
|
|
// If it is already entangled, it's disentangled first and enatangle to the
|
|
// new one.
|
|
void
|
|
Entangle(MessagePort* aMessagePort);
|
|
|
|
virtual already_AddRefed<MessagePortBase>
|
|
Clone() MOZ_OVERRIDE;
|
|
|
|
private:
|
|
~MessagePort();
|
|
|
|
// Dispatch events from the Message Queue using a nsRunnable.
|
|
void Dispatch();
|
|
|
|
nsRefPtr<DispatchEventRunnable> mDispatchRunnable;
|
|
|
|
nsRefPtr<MessagePort> mEntangledPort;
|
|
|
|
nsTArray<nsRefPtr<PostMessageRunnable> > mMessageQueue;
|
|
bool mMessageQueueEnabled;
|
|
};
|
|
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_dom_MessagePort_h
|