@novo-learning/novo-sdk/dist/clients/speech-api/event-bus.js

SDK for the Novolanguage Speech Analysis API

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.EventBus = void 0;
class EventBus {
    constructor(parent, identifier) {
        this.parent = parent;
        this.identifier = identifier;
        this.listeners = {};
    }
    channel(identifier) {
        return new EventBus(this, identifier);
    }
    root() {
        let eb = this.parent;
        if (eb === undefined) {
            return this;
        }
        while (eb.parent) {
            eb = eb.parent;
        }
        return eb;
    }
    addEventListener(event, callbackFn) {
        this.listeners[event] = (this.listeners[event] || []).concat(callbackFn);
    }
    removeEventListener(event, callbackFn) {
        if (!callbackFn) {
            this.listeners[event] = [];
        }
        else {
            const index = (this.listeners[event] || []).findIndex((fn) => fn === callbackFn);
            if (index > -1) {
                this.listeners[event].splice(index, 1);
            }
        }
    }
    dispatch(event, data, broadcast) {
        (this.listeners[event] || []).forEach((callbackFn) => callbackFn(data));
        if (broadcast !== false && this.parent) {
            this.parent.dispatch.apply(this.parent, [event, data, broadcast]);
        }
    }
}
exports.EventBus = EventBus;
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