@arcgis/core/core/Evented.js

ArcGIS Maps SDK for JavaScript: A complete 2D and 3D mapping and data visualization API

/*
All material copyright ESRI, All Rights Reserved, unless otherwise specified.
See https://js.arcgis.com/4.33/esri/copyright.txt for details.
*/
import{_ as e}from"../chunks/tslib.es6.js";import t from"./Accessor.js";import{handlesGroup as r,makeHandle as s}from"./handleUtils.js";import{subclass as n}from"./accessorSupport/decorators/subclass.js";class i{constructor(){this._emitter=new i.EventEmitter(this)}emit(e,t){return this._emitter.emit(e,t)}on(e,t){return this._emitter.on(e,t)}once(e,t){return this._emitter.once(e,t)}hasEventListener(e){return this._emitter.hasEventListener(e)}}!function(o){class c{constructor(e=null){this._target=e,this._listenersMap=null}clear(){this._listenersMap?.clear(),this._listenersMap=null}destroy(){this.clear()}emit(e,t){let r=this._listenersMap?.get(e);if(!r)return!1;const s=this._target||this;let n=!1;for(const i of r.slice()){const e="deref"in i?i.deref():i;e?e?.call(s,t):n=!0}return n&&(r=r.filter((e=>!("deref"in e)||null!=e.deref())),this._listenersMap.set(e,r)),r.length>0}on(e,t){if(Array.isArray(e)){const s=e.map((e=>this.on(e,t)));return r(s)}if(e.includes(","))throw new TypeError("Evented.on() with a comma delimited string of event types is not supported");this._listenersMap??=new Map;const n=this._listenersMap.get(e)||[];return n.push(t),this._listenersMap.set(e,n),s((()=>{const r=this._listenersMap?.get(e),s=r?.indexOf(t)??-1;s>=0&&r.splice(s,1)}))}once(e,t){const r=this.on(e,(e=>{r.remove();const s="deref"in t?t.deref():t;s?.call(null,e)}));return r}hasEventListener(e){const t=this._listenersMap?.get(e);return null!=t&&t.length>0}}o.EventEmitter=c,o.EventedMixin=t=>{let r=class extends t{constructor(){super(...arguments),this._emitter=new c}destroy(){this._emitter.clear()}emit(e,t){return this._emitter.emit(e,t)}on(e,t){return this._emitter.on(e,t)}once(e,t){return this._emitter.once(e,t)}hasEventListener(e){return this._emitter.hasEventListener(e)}};return r=e([n("esri.core.Evented")],r),r};let l=class extends t{constructor(){super(...arguments),this._emitter=new i.EventEmitter(this)}destroy(){this._emitter.clear()}emit(e,t){return this._emitter.emit(e,t)}on(e,t){return this._emitter.on(e,t)}once(e,t){return this._emitter.once(e,t)}hasEventListener(e){return this._emitter.hasEventListener(e)}};l=e([n("esri.core.Evented.EventedAccessor")],l),o.EventedAccessor=l}(i||(i={}));const o=i;export{o as default};