44 lines
1.3 KiB
JavaScript
44 lines
1.3 KiB
JavaScript
/**
|
|
* Copyright (c) Meta Platforms, Inc. and affiliates.
|
|
*
|
|
* This source code is licensed under the MIT license found in the
|
|
* LICENSE file in the root directory of this source tree.
|
|
*
|
|
* @flow strict
|
|
* @format
|
|
*/
|
|
|
|
import type {IEventEmitter} from '../vendor/emitter/EventEmitter';
|
|
|
|
import {beginEvent, endEvent} from '../Performance/Systrace';
|
|
import EventEmitter from '../vendor/emitter/EventEmitter';
|
|
|
|
// FIXME: use typed events
|
|
type RCTDeviceEventDefinitions = $FlowFixMe;
|
|
|
|
/**
|
|
* Global EventEmitter used by the native platform to emit events to JavaScript.
|
|
* Events are identified by globally unique event names.
|
|
*
|
|
* NativeModules that emit events should instead subclass `NativeEventEmitter`.
|
|
*/
|
|
class RCTDeviceEventEmitter extends EventEmitter<RCTDeviceEventDefinitions> {
|
|
// Add systrace to RCTDeviceEventEmitter.emit method for debugging
|
|
emit<TEvent: $Keys<RCTDeviceEventDefinitions>>(
|
|
eventType: TEvent,
|
|
...args: RCTDeviceEventDefinitions[TEvent]
|
|
): void {
|
|
beginEvent(() => `RCTDeviceEventEmitter.emit#${eventType}`);
|
|
super.emit(eventType, ...args);
|
|
endEvent();
|
|
}
|
|
}
|
|
const instance = new RCTDeviceEventEmitter();
|
|
|
|
Object.defineProperty(global, '__rctDeviceEventEmitter', {
|
|
configurable: true,
|
|
value: instance,
|
|
});
|
|
|
|
export default (instance: IEventEmitter<RCTDeviceEventDefinitions>);
|