audio2wave/lib/utils/Emitor/index.js

draw wave in canvas from audio element source

import { MutiMap } from '../Map/index';
var Emitor = /** @class */ (function () {
    function Emitor() {
        this.map = new MutiMap();
    }
    Emitor.prototype.addListener = function (eventName, listener) {
        this.map.add(eventName, listener);
    };
    Emitor.prototype.removeListener = function (eventName, listener) {
        this.map.deleteItem(eventName, listener);
    };
    Emitor.prototype.emit = function (eventName) {
        var args = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            args[_i - 1] = arguments[_i];
        }
        var listeners = this.map.get(eventName);
        try {
            listeners.forEach(function (listener) {
                listener.apply(void 0, args);
            });
        }
        catch (e) {
            console.error(e);
        }
    };
    return Emitor;
}());
export { Emitor };
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