cione-comp-lib
Version:
`$ yarn add cione-comp-lib` 或者 `$ npm i cione-comp-lib -S`
66 lines (65 loc) • 2.17 kB
JavaScript
import { __exports as eventtarget } from "../../../../../_virtual/eventtarget.mjs";
(function(exports) {
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = void 0;
function _classCallCheck(instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
}
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor)
descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps)
_defineProperties(Constructor.prototype, protoProps);
if (staticProps)
_defineProperties(Constructor, staticProps);
return Constructor;
}
var EventTargetMixin = /* @__PURE__ */ function() {
function EventTargetMixin2() {
_classCallCheck(this, EventTargetMixin2);
this._listeners = /* @__PURE__ */ new Map();
}
_createClass(EventTargetMixin2, [{
key: "addEventListener",
value: function addEventListener(type, callback) {
if (!this._listeners.has(type)) {
this._listeners.set(type, /* @__PURE__ */ new Set());
}
this._listeners.get(type).add(callback);
}
}, {
key: "removeEventListener",
value: function removeEventListener(type, callback) {
if (this._listeners.has(type)) {
this._listeners.get(type)["delete"](callback);
}
}
}, {
key: "dispatchEvent",
value: function dispatchEvent(event) {
var _this = this;
if (!this._listeners.has(event.type)) {
return true;
}
this._listeners.get(event.type).forEach(function(callback) {
return callback.call(_this, event);
});
return !event.defaultPrevented;
}
}]);
return EventTargetMixin2;
}();
exports["default"] = EventTargetMixin;
})(eventtarget);