@gdjiami/jslib/EventEmitter.js

Jiami FrontEnd helpers and Services

import * as tslib_1 from "tslib";
/**
 * 简单事件订阅模式
 */
var EventEmitter = /** @class */ (function () {
    function EventEmitter() {
    }
    /**
     * 事件绑定
     * @param name 事件名
     * @param callback 执行回调
     */
    EventEmitter.prototype.addEventListener = function (name, callback) {
        var _this = this;
        if (EventEmitter.listeners[name]) {
            EventEmitter.listeners[name].push(callback);
        }
        else {
            EventEmitter.listeners[name] = [callback];
        }
        return function () { return _this.removeEventListener(name, callback); };
    };
    /**
     * 事件解绑
     * @param name 事件名
     * @param callback 执行回调
     */
    EventEmitter.prototype.removeEventListener = function (name, callback) {
        if (EventEmitter.listeners[name]) {
            var idx = EventEmitter.listeners[name].findIndex(function (i) { return i === callback; });
            if (idx !== -1) {
                EventEmitter.listeners[name].splice(idx, 1);
            }
        }
    };
    /**
     * 事件触发
     * @param name 事件名
     * @param args 执行回调时传入的参数
     */
    EventEmitter.prototype.emit = function (name) {
        var args = [];
        for (var _i = 1; _i < arguments.length; _i++) {
            args[_i - 1] = arguments[_i];
        }
        var list = EventEmitter.listeners[name];
        if (list) {
            list.forEach(function (callback) { return callback.apply(void 0, tslib_1.__spread(args)); });
        }
    };
    EventEmitter.listeners = {};
    return EventEmitter;
}());
export { EventEmitter };