mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-06-08 05:27:14 +09:00
4010c4643a
This will be needed by Streams. To support this, we now store callbacks in a hash table, keyed by an ID. Callers may use that ID to remove the callback at a later point.
90 lines
3.6 KiB
C++
90 lines
3.6 KiB
C++
/*
|
|
* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
|
|
* Copyright (c) 2024, Tim Ledbetter <timledbetter@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/HashMap.h>
|
|
#include <AK/RefCounted.h>
|
|
#include <AK/Weakable.h>
|
|
#include <LibGC/Function.h>
|
|
#include <LibWeb/DOM/EventTarget.h>
|
|
#include <LibWeb/Forward.h>
|
|
#include <LibWeb/WebIDL/Types.h>
|
|
|
|
namespace Web::DOM {
|
|
|
|
// https://dom.spec.whatwg.org/#abortsignal
|
|
class AbortSignal final : public EventTarget {
|
|
WEB_PLATFORM_OBJECT(AbortSignal, EventTarget);
|
|
GC_DECLARE_ALLOCATOR(AbortSignal);
|
|
|
|
public:
|
|
static WebIDL::ExceptionOr<GC::Ref<AbortSignal>> construct_impl(JS::Realm&);
|
|
|
|
virtual ~AbortSignal() override = default;
|
|
|
|
using AbortAlgorithmID = u64;
|
|
Optional<AbortAlgorithmID> add_abort_algorithm(Function<void()>);
|
|
void remove_abort_algorithm(AbortAlgorithmID);
|
|
|
|
// https://dom.spec.whatwg.org/#dom-abortsignal-aborted
|
|
// An AbortSignal object is aborted when its abort reason is not undefined.
|
|
bool aborted() const { return !m_abort_reason.is_undefined(); }
|
|
|
|
void signal_abort(JS::Value reason);
|
|
|
|
void set_onabort(WebIDL::CallbackType*);
|
|
WebIDL::CallbackType* onabort();
|
|
|
|
// https://dom.spec.whatwg.org/#dom-abortsignal-reason
|
|
JS::Value reason() const { return m_abort_reason; }
|
|
void set_reason(JS::Value reason) { m_abort_reason = reason; }
|
|
|
|
JS::ThrowCompletionOr<void> throw_if_aborted() const;
|
|
|
|
static WebIDL::ExceptionOr<GC::Ref<AbortSignal>> abort(JS::VM&, JS::Value reason);
|
|
static WebIDL::ExceptionOr<GC::Ref<AbortSignal>> timeout(JS::VM&, Web::WebIDL::UnsignedLongLong milliseconds);
|
|
static WebIDL::ExceptionOr<GC::Ref<AbortSignal>> any(JS::VM&, Vector<GC::Root<AbortSignal>> const&);
|
|
|
|
static WebIDL::ExceptionOr<GC::Ref<AbortSignal>> create_dependent_abort_signal(JS::Realm&, Vector<GC::Root<AbortSignal>> const&);
|
|
|
|
private:
|
|
explicit AbortSignal(JS::Realm&);
|
|
|
|
virtual void initialize(JS::Realm&) override;
|
|
virtual void visit_edges(JS::Cell::Visitor&) override;
|
|
|
|
bool dependent() const { return m_dependent; }
|
|
void set_dependent(bool dependent) { m_dependent = dependent; }
|
|
|
|
Vector<GC::Ptr<AbortSignal>> source_signals() const { return m_source_signals; }
|
|
|
|
void append_source_signal(GC::Ptr<AbortSignal> source_signal) { m_source_signals.append(source_signal); }
|
|
void append_dependent_signal(GC::Ptr<AbortSignal> dependent_signal) { m_dependent_signals.append(dependent_signal); }
|
|
|
|
// https://dom.spec.whatwg.org/#abortsignal-abort-reason
|
|
// An AbortSignal object has an associated abort reason, which is a JavaScript value. It is undefined unless specified otherwise.
|
|
JS::Value m_abort_reason { JS::js_undefined() };
|
|
|
|
// https://dom.spec.whatwg.org/#abortsignal-abort-algorithms
|
|
OrderedHashMap<AbortAlgorithmID, GC::Ref<GC::Function<void()>>> m_abort_algorithms;
|
|
AbortAlgorithmID m_next_abort_algorithm_id { 0 };
|
|
|
|
// https://dom.spec.whatwg.org/#abortsignal-source-signals
|
|
// An AbortSignal object has associated source signals (a weak set of AbortSignal objects that the object is dependent on for its aborted state), which is initially empty.
|
|
Vector<GC::Ptr<AbortSignal>> m_source_signals;
|
|
|
|
// https://dom.spec.whatwg.org/#abortsignal-dependent-signals
|
|
// An AbortSignal object has associated dependent signals (a weak set of AbortSignal objects that are dependent on the object for their aborted state), which is initially empty.
|
|
Vector<GC::Ptr<AbortSignal>> m_dependent_signals;
|
|
|
|
// https://dom.spec.whatwg.org/#abortsignal-dependent
|
|
// An AbortSignal object has a dependent (a boolean), which is initially false.
|
|
bool m_dependent { false };
|
|
};
|
|
|
|
}
|