ladybird/Userland/Libraries/LibWeb/DOM/AbortSignal.cpp
Andreas Kling 9176a0de99 LibWeb: Stop using Bindings::wrap() in a bunch of places
wrap() is now basically a no-op so we should stop using it everywhere
and eventually remove it. This patch removes uses of wrap() in
non-generated code.
2022-09-06 00:27:09 +02:00

85 lines
2.3 KiB
C++
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/DOM/AbortSignal.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/EventDispatcher.h>
#include <LibWeb/HTML/EventHandler.h>
namespace Web::DOM {
JS::NonnullGCPtr<AbortSignal> AbortSignal::create_with_global_object(HTML::Window& window)
{
return *window.heap().allocate<AbortSignal>(window.realm(), window);
}
AbortSignal::AbortSignal(HTML::Window& window)
: EventTarget(window.realm())
{
}
// https://dom.spec.whatwg.org/#abortsignal-add
void AbortSignal::add_abort_algorithm(Function<void()> abort_algorithm)
{
// 1. If signal is aborted, then return.
if (aborted())
return;
// 2. Append algorithm to signals abort algorithms.
m_abort_algorithms.append(move(abort_algorithm));
}
// https://dom.spec.whatwg.org/#abortsignal-signal-abort
void AbortSignal::signal_abort(JS::Value reason)
{
// 1. If signal is aborted, then return.
if (aborted())
return;
// 2. Set signals abort reason to reason if it is given; otherwise to a new "AbortError" DOMException.
if (!reason.is_undefined())
m_abort_reason = reason;
else
m_abort_reason = AbortError::create(global_object(), "Aborted without reason").ptr();
// 3. For each algorithm in signals abort algorithms: run algorithm.
for (auto& algorithm : m_abort_algorithms)
algorithm();
// 4. Empty signals abort algorithms.
m_abort_algorithms.clear();
// 5. Fire an event named abort at signal.
dispatch_event(*Event::create(global_object(), HTML::EventNames::abort));
}
void AbortSignal::set_onabort(Bindings::CallbackType* event_handler)
{
set_event_handler_attribute(HTML::EventNames::abort, event_handler);
}
Bindings::CallbackType* AbortSignal::onabort()
{
return event_handler_attribute(HTML::EventNames::abort);
}
// https://dom.spec.whatwg.org/#dom-abortsignal-throwifaborted
JS::ThrowCompletionOr<void> AbortSignal::throw_if_aborted() const
{
// The throwIfAborted() method steps are to throw thiss abort reason, if this is aborted.
if (!aborted())
return {};
return JS::throw_completion(m_abort_reason);
}
void AbortSignal::visit_edges(JS::Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_abort_reason);
}
}