1/*
2 * Copyright (C) 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#if ENABLE(SERVICE_WORKER)
29
30#include "Event.h"
31#include "ExtendableEventInit.h"
32#include <wtf/WeakPtr.h>
33
34namespace WebCore {
35
36class DOMPromise;
37
38class ExtendableEvent : public Event, public CanMakeWeakPtr<ExtendableEvent> {
39public:
40 static Ref<ExtendableEvent> create(const AtomicString& type, const ExtendableEventInit& initializer, IsTrusted isTrusted = IsTrusted::No)
41 {
42 return adoptRef(*new ExtendableEvent(type, initializer, isTrusted));
43 }
44
45 ~ExtendableEvent();
46
47 EventInterface eventInterface() const override { return ExtendableEventInterfaceType; }
48
49 ExceptionOr<void> waitUntil(Ref<DOMPromise>&&);
50 unsigned pendingPromiseCount() const { return m_pendingPromiseCount; }
51
52 WEBCORE_EXPORT void whenAllExtendLifetimePromisesAreSettled(WTF::Function<void(HashSet<Ref<DOMPromise>>&&)>&&);
53
54protected:
55 WEBCORE_EXPORT ExtendableEvent(const AtomicString&, const ExtendableEventInit&, IsTrusted);
56 ExtendableEvent(const AtomicString&, CanBubble, IsCancelable);
57
58 void addExtendLifetimePromise(Ref<DOMPromise>&&);
59
60private:
61 unsigned m_pendingPromiseCount { 0 };
62 HashSet<Ref<DOMPromise>> m_extendLifetimePromises;
63 WTF::Function<void(HashSet<Ref<DOMPromise>>&&)> m_whenAllExtendLifetimePromisesAreSettledHandler;
64};
65
66} // namespace WebCore
67
68#endif // ENABLE(SERVICE_WORKER)
69