change the directory structurejarred/rename

1 files changed, 185 insertions, 0 deletions

diff --git a/src/bun.js/bindings/webcore/EventTarget.h b/src/bun.js/bindings/webcore/EventTarget.h
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index 000000000..b763393d7
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+++ b/src/bun.js/bindings/webcore/EventTarget.h
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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) 2004-2021 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 "EventListenerMap.h"
+#include "EventListenerOptions.h"
+#include "EventTargetInterfaces.h"
+#include "ExceptionOr.h"
+#include "ScriptWrappable.h"
+#include <memory>
+#include <variant>
+#include <wtf/Forward.h>
+// #include <wtf/IsoMalloc.h>
+
+#include <wtf/WeakPtr.h>
+
+#include "root.h"
+
+namespace JSC {
+class JSValue;
+class JSObject;
+}
+
+namespace WebCore {
+
+struct AddEventListenerOptions;
+class DOMWrapperWorld;
+class JSEventListener;
+
+struct EventTargetData {
+    WTF_MAKE_NONCOPYABLE(EventTargetData);
+    WTF_MAKE_FAST_ALLOCATED;
+
+public:
+    EventTargetData() = default;
+    EventListenerMap eventListenerMap;
+    bool isFiringEventListeners { false };
+};
+
+class EventTarget : public ScriptWrappable, public CanMakeWeakPtr<EventTarget> {
+    WTF_MAKE_ISO_ALLOCATED(EventTarget);
+
+public:
+    static Ref<EventTarget> create(ScriptExecutionContext&);
+
+    void ref() { refEventTarget(); }
+    void deref() { derefEventTarget(); }
+
+    virtual EventTargetInterface eventTargetInterface() const = 0;
+    virtual ScriptExecutionContext* scriptExecutionContext() const = 0;
+
+    WEBCORE_EXPORT virtual bool isNode() const;
+    WEBCORE_EXPORT virtual bool isPaymentRequest() const;
+
+    using AddEventListenerOptionsOrBoolean = std::variant<AddEventListenerOptions, bool>;
+    WEBCORE_EXPORT void addEventListenerForBindings(const AtomString& eventType, RefPtr<EventListener>&&, AddEventListenerOptionsOrBoolean&&);
+    using EventListenerOptionsOrBoolean = std::variant<EventListenerOptions, bool>;
+    WEBCORE_EXPORT void removeEventListenerForBindings(const AtomString& eventType, RefPtr<EventListener>&&, EventListenerOptionsOrBoolean&&);
+    WEBCORE_EXPORT ExceptionOr<bool> dispatchEventForBindings(Event&);
+
+    WEBCORE_EXPORT virtual bool addEventListener(const AtomString& eventType, Ref<EventListener>&&, const AddEventListenerOptions&);
+    WEBCORE_EXPORT virtual bool removeEventListener(const AtomString& eventType, EventListener&, const EventListenerOptions& = {});
+
+    WEBCORE_EXPORT virtual void removeAllEventListeners();
+    WEBCORE_EXPORT virtual void dispatchEvent(Event&);
+    WEBCORE_EXPORT virtual void uncaughtExceptionInEventHandler();
+
+    // Used for legacy "onevent" attributes.
+    template<typename JSMaybeErrorEventListener>
+    void setAttributeEventListener(const AtomString& eventType, JSC::JSValue listener, JSC::JSObject& jsEventTarget);
+    bool setAttributeEventListener(const AtomString& eventType, RefPtr<EventListener>&&, DOMWrapperWorld&);
+    JSEventListener* attributeEventListener(const AtomString& eventType, DOMWrapperWorld&);
+
+    bool hasEventListeners() const;
+    bool hasEventListeners(const AtomString& eventType) const;
+    bool hasCapturingEventListeners(const AtomString& eventType);
+    bool hasActiveEventListeners(const AtomString& eventType) const;
+
+    Vector<AtomString> eventTypes();
+    const EventListenerVector& eventListeners(const AtomString& eventType);
+
+    enum class EventInvokePhase { Capturing,
+        Bubbling };
+    void fireEventListeners(Event&, EventInvokePhase);
+    bool isFiringEventListeners() const;
+
+    template<typename Visitor> void visitJSEventListeners(Visitor&);
+    void invalidateJSEventListeners(JSC::JSObject*);
+
+    const EventTargetData* eventTargetData() const;
+
+protected:
+    WEBCORE_EXPORT virtual ~EventTarget();
+
+    virtual EventTargetData* eventTargetData() = 0;
+    virtual EventTargetData* eventTargetDataConcurrently() = 0;
+    virtual EventTargetData& ensureEventTargetData() = 0;
+
+    virtual void eventListenersDidChange() {}
+
+private:
+    virtual void refEventTarget() = 0;
+    virtual void derefEventTarget() = 0;
+
+    void innerInvokeEventListeners(Event&, EventListenerVector, EventInvokePhase);
+    void invalidateEventListenerRegions();
+};
+
+class EventTargetWithInlineData : public EventTarget {
+    WTF_MAKE_ISO_ALLOCATED_EXPORT(EventTargetWithInlineData, WEBCORE_EXPORT);
+
+protected:
+    EventTargetData* eventTargetData() final { return &m_eventTargetData; }
+    EventTargetData* eventTargetDataConcurrently() final { return &m_eventTargetData; }
+    EventTargetData& ensureEventTargetData() final { return m_eventTargetData; }
+
+private:
+    EventTargetData m_eventTargetData;
+};
+
+inline const EventTargetData* EventTarget::eventTargetData() const
+{
+    return const_cast<EventTarget*>(this)->eventTargetData();
+}
+
+inline bool EventTarget::isFiringEventListeners() const
+{
+    auto* data = eventTargetData();
+    return data && data->isFiringEventListeners;
+}
+
+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);
+}
+
+template<typename Visitor>
+void EventTarget::visitJSEventListeners(Visitor& visitor)
+{
+    if (auto* data = eventTargetDataConcurrently())
+        data->eventListenerMap.visitJSEventListeners(visitor);
+}
+
+} // namespace WebCore