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LibWeb: Add support for AbortSignal.reason

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This commit is contained in:
Luke Wilde 2021-12-10 20:05:12 +00:00 • committed by Idan Horowitz
parent 4dbda2d5b4
commit 64040c136e
6 changed files with 40 additions and 14 deletions
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25
Userland/Libraries/LibWeb/DOM/AbortSignal.cpp
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@ -5,6 +5,8 @@
*/
#include <LibWeb/Bindings/AbortSignalWrapper.h>
#include <LibWeb/Bindings/DOMExceptionWrapper.h>
#include <LibWeb/Bindings/Wrapper.h>
#include <LibWeb/DOM/AbortSignal.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/EventDispatcher.h>
@ -29,25 +31,35 @@ JS::Object* AbortSignal::create_wrapper(JS::GlobalObject& global_object)
// https://dom.spec.whatwg.org/#abortsignal-add
void AbortSignal::add_abort_algorithm(Function<void()> abort_algorithm)
{
if (m_aborted)
// 1. If signal is aborted, then return.
if (aborted())
return;
// 2. Append algorithm to signal’s abort algorithms.
m_abort_algorithms.append(move(abort_algorithm));
}
// https://dom.spec.whatwg.org/#abortsignal-signal-abort
void AbortSignal::signal_abort()
void AbortSignal::signal_abort(JS::Value reason)
{
if (m_aborted)
// 1. If signal is aborted, then return.
if (aborted())
return;
m_aborted = true;
// 2. Set signal’s 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 = wrap(wrapper()->global_object(), AbortError::create("Aborted without reason"));
// 3. For each algorithm in signal’s abort algorithms: run algorithm.
for (auto& algorithm : m_abort_algorithms)
algorithm();
// 4. Empty signal’s abort algorithms.
m_abort_algorithms.clear();
// 5. Fire an event named abort at signal.
dispatch_event(Event::create(HTML::EventNames::abort));
}
@ -61,4 +73,9 @@ HTML::EventHandler AbortSignal::onabort()
return event_handler_attribute(HTML::EventNames::abort);
}
void AbortSignal::visit_edges(JS::Cell::Visitor& visitor)
{
visitor.visit(m_abort_reason);
}
}