@arcgis/core/core/reactiveUtils.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/4.32/esri/copyright.txt for details.
*/
import{createTask as n}from"./asyncUtils.js";import e from"./Collection.js";import{isEventedOrEventTarget as t,on as o}from"./events.js";import{handlesGroup as r,destroyHandle as s,makeHandle as i}from"./handleUtils.js";import{removeMaybe as c}from"./maybe.js";import{isAborted as u,createAbortError as l,onAbort as a,ignoreAbortErrors as f}from"./promiseUtils.js";import{watchTracked as m}from"./accessorSupport/watch.js";export{autorun}from"./accessorSupport/trackingUtils.js";function d(n,e,t={}){return y(n,e,t,L)}function p(n,e,t={}){return y(n,e,t,M)}function y(n,e,t={},o){let r=null;const s=t.once?(n,t)=>{o(n)&&(c(r),e(n,t))}:(n,t)=>{o(n)&&e(n,t)};if(r=m(n,s,t.sync,t.equals),t.initial){const e=n();s(e,e)}return r}function v(n,e,r,s={}){let u=null,l=null,a=null;function f(){u&&l&&(l.remove(),s.onListenerRemove?.(u),u=null,l=null)}function m(n){s.once&&s.once&&c(a),r(n)}const p=d(n,((n,r)=>{f(),t(n)&&(u=n,l=o(n,e,m),s.onListenerAdd?.(n))}),{sync:s.sync,initial:!0});return a=i((()=>{p.remove(),f()})),a}function j(n,e){return h(n,null,e)}function w(n,e){return h(n,M,e)}function h(n,e,t){if(u(t))return Promise.reject(l());const o=n();if(e?.(o))return Promise.resolve(o);let s=null;function i(){s=c(s)}return new Promise(((o,c)=>{s=r([a(t,(()=>{i(),c(l())})),y(n,(n=>{i(),o(n)}),{sync:!1,once:!0},e??L)])}))}function L(n){return!0}function M(n){return!!n}function U(n,e,t={}){let o=!1;const r=d(n,((n,t)=>{o||e(n,t)}),t);return{remove(){r.remove()},pause(){o=!0},resume(){o=!1}}}function g(n,t){const o=new e,r=v(n,"after-splice",(({added:n,start:e,deleteCount:r})=>{const s=o.splice(e,r);for(const t of s)t.remove();if(n?.length){const r=n.map(t);o.addMany(r,e)}}),{sync:!0,onListenerRemove:()=>o.drain((n=>n.remove())),onListenerAdd:n=>o.addMany(n.items.map(t))});return o.addHandles(r),o}function x(t,o){const r=new e,i=g(t,(e=>n((async n=>{const t=await o(e,n);if(u(n))throw t.remove(),l();return t})))),c=()=>null,a=async n=>{const e=await n.promise,t=i.indexOf(n);t<0||r.splice(t,1,e)};r.addMany(i.items.map(c));for(const n of i)f(a(n));const m=i.on("after-splice",(({added:n,start:e,deleteCount:t})=>{const o=r.splice(e,t);for(const r of o)r?.remove();if(n?.length){r.addMany(n.map(c),e);for(const e of n)f(a(e))}}));return r.addHandles([s(i),m]),r}const C={sync:!0},P={initial:!0},A={sync:!0,initial:!0};export{P as initial,g as mapCollection,x as mapCollectionAsync,v as on,j as once,U as pausable,C as sync,A as syncAndInitial,d as watch,p as when,w as whenOnce};