55 lines
1.5 KiB
JavaScript
55 lines
1.5 KiB
JavaScript
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.EventEmitter = void 0;
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const mitt_1 = __importDefault(require("./mitt"));
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class EventEmitter {
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emitter;
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eventsMap = new Map();
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constructor() {
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this.emitter = (0, mitt_1.default)(this.eventsMap);
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}
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on(event, handler) {
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this.emitter.on(event, handler);
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return this;
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}
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off(event, handler) {
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this.emitter.off(event, handler);
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return this;
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}
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addListener(event, handler) {
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this.on(event, handler);
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return this;
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}
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emit(event, eventData) {
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this.emitter.emit(event, eventData);
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return this.eventListenersCount(event) > 0;
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}
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once(event, handler) {
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const onceHandler = (eventData) => {
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handler(eventData);
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this.off(event, onceHandler);
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};
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return this.on(event, onceHandler);
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}
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listenerCount(event) {
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return this.eventListenersCount(event);
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}
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removeAllListeners(event) {
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if (event) {
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this.eventsMap.delete(event);
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}
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else {
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this.eventsMap.clear();
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}
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return this;
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}
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eventListenersCount(event) {
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var _a;
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return ((_a = this.eventsMap.get(event)) === null || _a === void 0 ? void 0 : _a.length) || 0;
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}
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}
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exports.EventEmitter = EventEmitter;
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