@arcgis/core/core/workers/WorkerFallback.js

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

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.8/LICENSE.txt */
import{nextTick as e}from"../nextTick.js";import s from"./RemoteClient.js";import{MessageType as r,receiveMessage as t}from"./utils.js";class n{constructor(){const e=document.createDocumentFragment();["addEventListener","dispatchEvent","removeEventListener"].forEach(s=>{this[s]=(...r)=>e[s](...r)})}}class a{constructor(){this._dispatcher=new n,this._workerPostMessage({type:r.HANDSHAKE})}terminate(){}get onmessage(){return this._onmessageHandler}set onmessage(e){this._onmessageHandler&&this.removeEventListener("message",this._onmessageHandler),this._onmessageHandler=e,e&&this.addEventListener("message",e)}get onmessageerror(){return this._onmessageerrorHandler}set onmessageerror(e){this._onmessageerrorHandler&&this.removeEventListener("messageerror",this._onmessageerrorHandler),this._onmessageerrorHandler=e,e&&this.addEventListener("messageerror",e)}get onerror(){return this._onerrorHandler}set onerror(e){this._onerrorHandler&&this.removeEventListener("error",this._onerrorHandler),this._onerrorHandler=e,e&&this.addEventListener("error",e)}postMessage(s){e(()=>{this._workerMessageHandler(new MessageEvent("message",{data:s}))})}dispatchEvent(e){return this._dispatcher.dispatchEvent(e)}addEventListener(e,s,r){this._dispatcher.addEventListener(e,s,r)}removeEventListener(e,s,r){this._dispatcher.removeEventListener(e,s,r)}_workerPostMessage(s){e(()=>{this.dispatchEvent(new MessageEvent("message",{data:s}))})}async _workerMessageHandler(e){const n=t(e);if(n&&n.type===r.OPEN){const{modulePath:e,jobId:t}=n;let a=await s.loadWorker(e);a||(a=await import(/* @vite-ignore */ /* webpackIgnore: true */e));const o=s.connect(a);this._workerPostMessage({type:r.OPENED,jobId:t,data:o})}}}export{a as default};