f29f525c77
- 37개 파일 IP → zioinfo.co.kr 치환 (소스/매뉴얼/설정/하네스) - Manager DrConsole/NetworkConsole/CsapConsole 빌드 + /var/www/manager/ 배포 - 테스트: Manager HTTP 200, ITSM 신규 API 7개 전체 200 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
107 lines
3.3 KiB
TypeScript
107 lines
3.3 KiB
TypeScript
import invariant from 'invariant';
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import { NativeEventEmitter, Platform } from 'react-native';
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const nativeEmitterSubscriptionKey = '@@nativeEmitterSubscription@@';
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type NativeModule = {
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__expo_module_name__?: string;
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startObserving?: () => void;
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stopObserving?: () => void;
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// Erase these types as they would conflict with the new NativeModule type.
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// This EventEmitter is deprecated anyway.
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addListener?: any;
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removeListeners?: any;
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};
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// @needsAudit
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export type Subscription = {
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/**
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* A method to unsubscribe the listener.
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*/
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remove: () => void;
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};
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export class EventEmitter {
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_listenerCount = 0;
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// @ts-expect-error
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_nativeModule: NativeModule;
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// @ts-expect-error
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_eventEmitter: NativeEventEmitter;
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constructor(nativeModule: NativeModule) {
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// If the native module is a new module, just return it back as it's already an event emitter.
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// This is for backwards compatibility until we stop using this legacy class in other packages.
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if (nativeModule.__expo_module_name__) {
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// @ts-expect-error
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return nativeModule;
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}
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this._nativeModule = nativeModule;
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this._eventEmitter = new NativeEventEmitter(nativeModule as any);
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}
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addListener<T>(eventName: string, listener: (event: T) => void): Subscription {
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if (!this._listenerCount && Platform.OS !== 'ios' && this._nativeModule.startObserving) {
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this._nativeModule.startObserving();
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}
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this._listenerCount++;
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const nativeEmitterSubscription = this._eventEmitter.addListener(eventName, listener);
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const subscription = {
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[nativeEmitterSubscriptionKey]: nativeEmitterSubscription,
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remove: () => {
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this.removeSubscription(subscription);
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},
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};
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return subscription;
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}
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removeAllListeners(eventName: string): void {
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// @ts-ignore: the EventEmitter interface has been changed in react-native@0.64.0
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const removedListenerCount = this._eventEmitter.listenerCount
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? // @ts-ignore: this is available since 0.64
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this._eventEmitter.listenerCount(eventName)
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: // @ts-ignore: this is available in older versions
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this._eventEmitter.listeners(eventName).length;
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this._eventEmitter.removeAllListeners(eventName);
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this._listenerCount -= removedListenerCount;
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invariant(
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this._listenerCount >= 0,
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`EventEmitter must have a non-negative number of listeners`
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);
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if (!this._listenerCount && Platform.OS !== 'ios' && this._nativeModule.stopObserving) {
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this._nativeModule.stopObserving();
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}
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}
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removeSubscription(subscription: Subscription): void {
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const nativeEmitterSubscription = subscription[nativeEmitterSubscriptionKey];
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if (!nativeEmitterSubscription) {
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return;
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}
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if ('remove' in nativeEmitterSubscription) {
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nativeEmitterSubscription.remove();
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}
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this._listenerCount--;
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// Ensure that the emitter's internal state remains correct even if `removeSubscription` is
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// called again with the same subscription
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delete subscription[nativeEmitterSubscriptionKey];
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// Release closed-over references to the emitter
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subscription.remove = () => {};
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if (!this._listenerCount && Platform.OS !== 'ios' && this._nativeModule.stopObserving) {
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this._nativeModule.stopObserving();
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}
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}
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emit(eventName: string, ...params: any[]): void {
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this._eventEmitter.emit(eventName, ...params);
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}
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}
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