taro-hooks/es/useEvent/index.js

为 Taro 而设计的 Hooks Library

import { eventCenter } from '@tarojs/taro';
import { generateGeneralFail } from '../utils/tool';
import { isSafeEvent, prefixClsEvent, generateCheck } from './utils';
function useEvent(namespace) {
  var set = function set(eventName) {
    for (var _len = arguments.length, handlers = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
      handlers[_key - 1] = arguments[_key];
    }
    if (generateCheck(eventName, handlers)) {
      handlers.forEach(function (handler) {
        eventCenter.on(prefixClsEvent(namespace, eventName), handler);
      });
    }
  };
  var setOnce = function setOnce(eventName) {
    for (var _len2 = arguments.length, handlers = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
      handlers[_key2 - 1] = arguments[_key2];
    }
    if (generateCheck(eventName, handlers)) {
      handlers.forEach(function (handler) {
        eventCenter.once(prefixClsEvent(namespace, eventName), handler);
      });
    }
  };
  var off = function off(eventName) {
    if (!isSafeEvent(eventName)) {
      generateGeneralFail('EVENT CHANEL', eventName + " is not valid");
      return;
    }
    for (var _len3 = arguments.length, handlers = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
      handlers[_key3 - 1] = arguments[_key3];
    }
    if (!(handlers != null && handlers.length)) {
      eventCenter.off(prefixClsEvent(namespace, eventName));
    } else {
      handlers.forEach(function (handler) {
        eventCenter.off(prefixClsEvent(namespace, eventName), handler);
      });
    }
  };
  var clear = function clear() {
    eventCenter.off();
  };
  var trigger = function trigger(eventName) {
    if (!isSafeEvent(eventName)) {
      generateGeneralFail('EVENT CHANEL', eventName + " is not valid");
      return;
    }
    for (var _len4 = arguments.length, params = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
      params[_key4 - 1] = arguments[_key4];
    }
    eventCenter.trigger.apply(eventCenter, [prefixClsEvent(namespace, eventName)].concat(params));
  };
  return {
    set: set,
    setOnce: setOnce,
    off: off,
    clear: clear,
    trigger: trigger
  };
}
export default useEvent;