@arcgis/core/core/support/UpdatingHandles.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 s}from"../../chunks/tslib.es6.js";import e from"../Accessor.js";import{makeHandle as t}from"../handleUtils.js";import{watch as i,when as n,on as d,sync as a}from"../reactiveUtils.js";import{schedule as r}from"../scheduling.js";import{property as o}from"../accessorSupport/decorators/property.js";import{subclass as l}from"../accessorSupport/decorators/subclass.js";let h=class extends e{constructor(){super(...arguments),this.updating=!1,this._handleId=0,this._scheduleHandleId=0,this._pendingPromises=new Set}destroy(){this.removeAll()}add(s,e,t={}){return this._installWatch(s,e,t,i)}addWhen(s,e,t={}){return this._installWatch(s,e,t,n)}addOnCollectionChange(s,e,{initial:i=!1,final:n=!1}={}){const r=++this._handleId;return this.addHandles([d(s,"after-changes",this._createSyncUpdatingCallback(),a),d(s,"change",e,{onListenerAdd:i?s=>e({added:s.toArray(),removed:[]}):void 0,onListenerRemove:n?s=>e({added:[],removed:s.toArray()}):void 0})],r),t((()=>this.removeHandles(r)))}addPromise(s){if(null==s)return s;const e=++this._handleId;this.addHandles(t((()=>{this._pendingPromises.delete(s)&&(0!==this._pendingPromises.size||this.hasHandles(c)||this._set("updating",!1))})),e),this._pendingPromises.add(s),this._set("updating",!0);const i=()=>this.removeHandles(e);return s.then(i,i),s}removeAll(){this._pendingPromises.clear(),this.removeAllHandles(),this._set("updating",!1)}_installWatch(s,e,i={},n){const d=++this._handleId;i.sync||this._installSyncUpdatingWatch(s,d);const a=n(s,e,i);return this.addHandles(a,d),t((()=>this.removeHandles(d)))}_installSyncUpdatingWatch(s,e){const t=this._createSyncUpdatingCallback(),n=i(s,t,{sync:!0,equals:()=>!1});return this.addHandles(n,e),n}_createSyncUpdatingCallback(){return()=>{this.removeHandles(c),++this._scheduleHandleId;const s=this._scheduleHandleId;this._get("updating")||this._set("updating",!0),this.addHandles(r((()=>{s===this._scheduleHandleId&&(this._set("updating",this._pendingPromises.size>0),this.removeHandles(c))})),c)}}};s([o({readOnly:!0})],h.prototype,"updating",void 0),h=s([l("esri.core.support.UpdatingHandles")],h);const c=-42;export{h as UpdatingHandles};