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/*
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ActiveDOMObject.h"
#include "BroadcastChannelIdentifier.h"
#include "ClientOrigin.h"
#include "EventTarget.h"
#include "ExceptionOr.h"
#include <wtf/Forward.h>
#include <wtf/RefCounted.h>
namespace JSC {
class JSGlobalObject;
class JSValue;
}
namespace WebCore {
class SerializedScriptValue;
class BroadcastChannel : public ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr<BroadcastChannel>, public EventTarget, public ActiveDOMObject {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(BroadcastChannel);
public:
static Ref<BroadcastChannel> create(ScriptExecutionContext& context, const String& name)
{
auto channel = adoptRef(*new BroadcastChannel(context, name));
channel->suspendIfNeeded();
return channel;
}
~BroadcastChannel();
// ActiveDOMObject.
void ref() const final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::ref(); }
void deref() const final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::deref(); }
BroadcastChannelIdentifier identifier() const;
String name() const;
ExceptionOr<void> postMessage(JSC::JSGlobalObject&, JSC::JSValue message);
void close();
WEBCORE_EXPORT static void dispatchMessageTo(BroadcastChannelIdentifier, Ref<SerializedScriptValue>&&, CompletionHandler<void()>&&);
private:
BroadcastChannel(ScriptExecutionContext&, const String& name);
void dispatchMessage(Ref<SerializedScriptValue>&&);
bool isEligibleForMessaging() const;
// EventTarget
enum EventTargetInterfaceType eventTargetInterface() const final { return EventTargetInterfaceType::BroadcastChannel; }
ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
void refEventTarget() final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::ref(); }
void derefEventTarget() final { ThreadSafeRefCountedAndCanMakeThreadSafeWeakPtr::deref(); }
void eventListenersDidChange() final;
// ActiveDOMObject.
bool virtualHasPendingActivity() const final;
void stop() final { close(); }
class MainThreadBridge;
Ref<MainThreadBridge> protectedMainThreadBridge() const;
Ref<MainThreadBridge> m_mainThreadBridge;
bool m_isClosed { false };
bool m_hasRelevantEventListener { false };
};
} // namespace WebCore
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