80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/*
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* Copyright (C) 2006-2021 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#pragma once
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#include <wtf/RefCounted.h>
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#include <wtf/WeakPtr.h>
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namespace JSC {
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class AbstractSlotVisitor;
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class JSObject;
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class SlotVisitor;
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}
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namespace WebCore {
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class ScriptExecutionContext;
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class Event;
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class EventTarget;
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class EventListener : public RefCounted<EventListener>, public CanMakeWeakPtr<EventListener> {
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public:
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enum Type {
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JSEventListenerType,
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ImageEventListenerType,
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ObjCEventListenerType,
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CPPEventListenerType,
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ConditionEventListenerType,
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GObjectEventListenerType,
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NativeEventListenerType,
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SVGTRefTargetEventListenerType,
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};
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virtual ~EventListener() = default;
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virtual bool operator==(const EventListener&) const = 0;
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virtual void handleEvent(ScriptExecutionContext&, Event&) = 0;
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virtual bool wasCreatedFromMarkup() const { return false; }
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virtual void visitJSFunction(JSC::AbstractSlotVisitor&) { }
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virtual void visitJSFunction(JSC::SlotVisitor&) { }
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virtual bool isAttribute() const { return false; }
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Type type() const { return m_type; }
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#if ASSERT_ENABLED
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virtual void checkValidityForEventTarget(EventTarget&) { }
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#endif
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virtual JSC::JSObject* jsFunction() const { return nullptr; }
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virtual JSC::JSObject* wrapper() const { return nullptr; }
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protected:
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explicit EventListener(Type type)
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: m_type(type)
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{
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}
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private:
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Type m_type;
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};
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} // namespace WebCore
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