zarm-web/lib/utils/events.js

基于 React 的桌面端UI库

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _default = {
  on: function on(el, type, callback) {
    if (el.addEventListener) {
      el.addEventListener(type, callback, {
        passive: false
      });
    } else {
      el.attachEvent("on ".concat(type), function () {
        callback.call(el);
      });
    }
  },
  off: function off(el, type, callback) {
    if (el.removeEventListener) {
      el.removeEventListener(type, callback, {
        passive: false
      });
    } else {
      el.detachEvent("off ".concat(type), callback);
    }
  },
  once: function once(el, type, callback) {
    var typeArray = type.split(' ');

    var recursiveFunction = function recursiveFunction(e) {
      e.target.removeEventListener(e.type, recursiveFunction, {
        passive: false
      });
      return callback(e);
    };

    for (var i = typeArray.length - 1; i >= 0; i -= 1) {
      this.on(el, typeArray[i], recursiveFunction);
    }
  }
};
exports.default = _default;