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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2004-2025 Apple Inc. All rights reserved.
* Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
* (C) 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
*
* 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 "EventTarget.h"
#include "Node.h"
namespace WebCore {
inline void EventTarget::ref()
{
auto* node = dynamicDowncast<Node>(*this);
if (node) [[likely]]
node->ref();
else
refEventTarget();
}
inline void EventTarget::deref()
{
auto* node = dynamicDowncast<Node>(*this);
if (node) [[likely]]
node->deref();
else
derefEventTarget();
}
inline bool EventTarget::hasEventListeners() const
{
auto* data = eventTargetData();
return data && !data->eventListenerMap.isEmpty();
}
inline bool EventTarget::hasEventListeners(const AtomString& eventType) const
{
auto* data = eventTargetData();
return data && data->eventListenerMap.contains(eventType);
}
inline bool EventTarget::hasCapturingEventListeners(const AtomString& eventType)
{
auto* data = eventTargetData();
return data && data->eventListenerMap.containsCapturing(eventType);
}
inline const EventTargetData* EventTarget::eventTargetData() const
{
if (hasEventTargetData())
return &weakPtrFactory().impl()->eventTargetData();
return nullptr;
}
inline EventTargetData* EventTarget::eventTargetData()
{
if (hasEventTargetData())
return &weakPtrFactory().impl()->eventTargetData();
return nullptr;
}
inline EventTargetData* EventTarget::eventTargetDataConcurrently()
{
bool flag = this->hasEventTargetData();
auto fencedFlag = Dependency::fence(flag);
if (flag)
return &fencedFlag.consume(this)->weakPtrFactory().impl()->eventTargetData();
return nullptr;
}
inline EventTargetData& EventTarget::ensureEventTargetData()
{
if (auto* data = eventTargetData())
return *data;
initializeWeakPtrFactory();
WTF::storeStoreFence();
setEventTargetFlag(EventTargetFlag::HasEventTargetData, true);
return weakPtrFactory().impl()->eventTargetData();
}
template<typename CallbackType>
inline void EventTarget::enumerateEventListenerTypes(NOESCAPE const CallbackType& callback) const
{
if (auto* data = eventTargetData())
data->eventListenerMap.enumerateEventListenerTypes(callback);
}
template<typename CallbackType>
inline bool EventTarget::containsMatchingEventListener(NOESCAPE const CallbackType& callback) const
{
if (auto* data = eventTargetData())
return data->eventListenerMap.containsMatchingEventListener(callback);
return false;
}
template<typename Visitor>
inline void EventTarget::visitJSEventListeners(Visitor& visitor)
{
if (auto* data = eventTargetDataConcurrently())
data->eventListenerMap.visitJSEventListeners(visitor);
}
} // namespace WebCore
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