f952db1a1f
This paves the way for the rejectionhandled and unhandledrejection events. It's also used by core-js (in browsers, at least) to check whether Promise needs to be polyfilled, so adding it should allow more websites to leverage LibJS's native Promise implementation :^)
52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright (c) 2021, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibJS/Runtime/Promise.h>
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#include <LibJS/Runtime/Value.h>
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#include <LibWeb/DOM/Event.h>
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namespace Web::HTML {
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struct PromiseRejectionEventInit : public DOM::EventInit {
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JS::Handle<JS::Promise> promise;
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JS::Value reason;
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};
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class PromiseRejectionEvent : public DOM::Event {
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public:
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using WrapperType = Bindings::PromiseRejectionEventWrapper;
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static NonnullRefPtr<PromiseRejectionEvent> create(FlyString const& event_name, PromiseRejectionEventInit const& event_init = {})
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{
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return adopt_ref(*new PromiseRejectionEvent(event_name, event_init));
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}
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static NonnullRefPtr<PromiseRejectionEvent> create_with_global_object(Bindings::WindowObject&, FlyString const& event_name, PromiseRejectionEventInit const& event_init)
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{
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return PromiseRejectionEvent::create(event_name, event_init);
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}
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virtual ~PromiseRejectionEvent() override = default;
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// Needs to return a pointer for the generated JS bindings to work.
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JS::Promise const* promise() const { return m_promise.cell(); }
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JS::Value reason() const { return m_reason; }
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protected:
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PromiseRejectionEvent(FlyString const& event_name, PromiseRejectionEventInit const& event_init)
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: DOM::Event(event_name, event_init)
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, m_promise(event_init.promise)
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, m_reason(event_init.reason)
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{
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}
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JS::Handle<JS::Promise> m_promise;
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// FIXME: Protect this from GC! Currently we have no handle for arbitrary JS::Value.
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JS::Value m_reason;
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};
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}
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