@sphereon/ssi-sdk-web3.headless-provider/dist/event-emitter.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.EventEmitter = void 0;
class EventEmitter {
    constructor() {
        this.listeners = Object.create(null);
    }
    emit(eventName, ...args) {
        var _a;
        (_a = this.listeners[eventName]) === null || _a === void 0 ? void 0 : _a.forEach((listener) => {
            listener(...args);
        });
        return true;
    }
    on(eventName, listener) {
        var _a, _b;
        var _c;
        (_a = (_c = this.listeners)[eventName]) !== null && _a !== void 0 ? _a : (_c[eventName] = []);
        (_b = this.listeners[eventName]) === null || _b === void 0 ? void 0 : _b.push(listener);
        return this;
    }
    off(eventName, listener) {
        var _a;
        const listeners = (_a = this.listeners[eventName]) !== null && _a !== void 0 ? _a : [];
        // eslint-disable-next-line @typescript-eslint/ban-ts-comment
        // @ts-ignore
        for (const [i, listener_] of listeners.entries()) {
            if (listener === listener_) {
                listeners.splice(i, 1);
                break;
            }
        }
        return this;
    }
    once(eventName, listener) {
        const cb = (...args) => {
            this.off(eventName, cb);
            listener(...args);
        };
        return this.on(eventName, cb);
    }
}
exports.EventEmitter = EventEmitter;
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