1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
* Copyright (C) 2017-2022 Apple Inc. All rights reserved.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS 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 "ContextDestructionObserver.h"
#include "EventTarget.h"
// #include "JSDOMPromiseDeferred.h"
#include "JSValueInWrappedObject.h"
#include <wtf/Function.h>
#include <wtf/Ref.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class AbortAlgorithm;
class ScriptExecutionContext;
class AbortSignal final : public RefCounted<AbortSignal>, public EventTargetWithInlineData, private ContextDestructionObserver {
WTF_MAKE_ISO_ALLOCATED_EXPORT(AbortSignal, WEBCORE_EXPORT);
public:
static Ref<AbortSignal> create(ScriptExecutionContext*);
WEBCORE_EXPORT ~AbortSignal();
using NativeCallbackTuple = std::tuple<void*, void (*)(void*, JSC::EncodedJSValue)>;
static Ref<AbortSignal> abort(JSDOMGlobalObject&, ScriptExecutionContext&, JSC::JSValue reason);
static Ref<AbortSignal> timeout(ScriptExecutionContext&, uint64_t milliseconds);
static bool whenSignalAborted(AbortSignal&, Ref<AbortAlgorithm>&&);
void signalAbort(JSC::JSValue reason);
void signalFollow(AbortSignal&);
bool aborted() const { return m_aborted; }
JSValue reason() const { return m_reason.get(); }
bool hasActiveTimeoutTimer() const { return m_hasActiveTimeoutTimer; }
bool hasAbortEventListener() const { return m_hasAbortEventListener; }
using RefCounted::deref;
using RefCounted::ref;
using Algorithm = Function<void(JSValue)>;
void addAlgorithm(Algorithm&& algorithm) { m_algorithms.append(WTFMove(algorithm)); }
void cleanNativeBindings(void* ref);
void addNativeCallback(NativeCallbackTuple callback) { m_native_callbacks.append(callback); }
bool isFollowingSignal() const { return !!m_followingSignal; }
void throwIfAborted(JSC::JSGlobalObject&);
private:
enum class Aborted : bool { No,
Yes };
explicit AbortSignal(ScriptExecutionContext*, Aborted = Aborted::No, JSC::JSValue reason = JSC::jsUndefined());
void setHasActiveTimeoutTimer(bool hasActiveTimeoutTimer) { m_hasActiveTimeoutTimer = hasActiveTimeoutTimer; }
// EventTarget.
EventTargetInterface eventTargetInterface() const final { return AbortSignalEventTargetInterfaceType; }
ScriptExecutionContext* scriptExecutionContext() const final { return ContextDestructionObserver::scriptExecutionContext(); }
void refEventTarget() final { ref(); }
void derefEventTarget() final { deref(); }
void eventListenersDidChange() final;
bool m_aborted { false };
Vector<Algorithm, 2> m_algorithms;
Vector<NativeCallbackTuple, 2> m_native_callbacks;
WeakPtr<AbortSignal> m_followingSignal;
JSC::Strong<JSC::Unknown> m_reason;
bool m_hasActiveTimeoutTimer { false };
bool m_hasAbortEventListener { false };
};
}
|
