blob: e544e31fd74e6384a6d82dd5b3c7ea830c746671 [file] [log] [blame]
// Copyright 2019 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef COBALT_DOM_ABORT_SIGNAL_H_
#define COBALT_DOM_ABORT_SIGNAL_H_
#include <vector>
#include "cobalt/base/tokens.h"
#include "cobalt/dom/event_target.h"
#include "cobalt/script/environment_settings.h"
namespace cobalt {
namespace dom {
// This represents the DOM AbortSignal object.
// https://dom.spec.whatwg.org/#interface-AbortSignal
class AbortSignal : public EventTarget {
public:
explicit AbortSignal(script::EnvironmentSettings* settings)
: EventTarget(settings) {}
// Web API: AbortSignal
bool aborted() const { return aborted_; }
const EventListenerScriptValue* onabort() const {
return GetAttributeEventListener(base::Tokens::abort());
}
void set_onabort(const EventListenerScriptValue& event_listener) {
SetAttributeEventListener(base::Tokens::abort(), event_listener);
}
// https://dom.spec.whatwg.org/#abortsignal-follow
void Follow(const scoped_refptr<AbortSignal>& parent_signal);
// Run the abort algorithms then trigger the abort event.
// https://dom.spec.whatwg.org/#abortsignal-signal-abort
void SignalAbort();
DEFINE_WRAPPABLE_TYPE(AbortSignal);
void TraceMembers(script::Tracer* tracer) override;
private:
// Keep track of the signals following this abort signal. These will be
// traced to keep them alive and also signalled when this is signalled.
std::vector<scoped_refptr<AbortSignal>> following_signals_;
bool aborted_ = false;
DISALLOW_COPY_AND_ASSIGN(AbortSignal);
};
} // namespace dom
} // namespace cobalt
#endif // COBALT_DOM_ABORT_SIGNAL_H_