1/*
2 * Copyright (C) 2008-2017 Apple Inc. All Rights Reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "JSEventTarget.h"
28
29#include "DOMWindow.h"
30#include "EventTarget.h"
31#include "EventTargetHeaders.h"
32#include "EventTargetInterfaces.h"
33#include "JSDOMWindow.h"
34#include "JSEventListener.h"
35#include "JSWindowProxy.h"
36#include "JSWorkerGlobalScope.h"
37#include "OffscreenCanvas.h"
38#include "WorkerGlobalScope.h"
39
40namespace WebCore {
41using namespace JSC;
42
43EventTarget* JSEventTarget::toWrapped(VM& vm, JSValue value)
44{
45 if (value.inherits<JSWindowProxy>(vm))
46 return &jsCast<JSWindowProxy*>(asObject(value))->wrapped();
47 if (value.inherits<JSDOMWindow>(vm))
48 return &jsCast<JSDOMWindow*>(asObject(value))->wrapped();
49 if (value.inherits<JSWorkerGlobalScope>(vm))
50 return &jsCast<JSWorkerGlobalScope*>(asObject(value))->wrapped();
51 if (value.inherits<JSEventTarget>(vm))
52 return &jsCast<JSEventTarget*>(asObject(value))->wrapped();
53 return nullptr;
54}
55
56std::unique_ptr<JSEventTargetWrapper> jsEventTargetCast(VM& vm, JSValue thisValue)
57{
58 if (auto* target = jsDynamicCast<JSEventTarget*>(vm, thisValue))
59 return std::make_unique<JSEventTargetWrapper>(target->wrapped(), *target);
60 if (auto* window = toJSDOMWindow(vm, thisValue))
61 return std::make_unique<JSEventTargetWrapper>(window->wrapped(), *window);
62 if (auto* scope = toJSWorkerGlobalScope(vm, thisValue))
63 return std::make_unique<JSEventTargetWrapper>(scope->wrapped(), *scope);
64 return nullptr;
65}
66
67void JSEventTarget::visitAdditionalChildren(SlotVisitor& visitor)
68{
69 wrapped().visitJSEventListeners(visitor);
70}
71
72} // namespace WebCore
73