@arcgis/core/widgets/BasemapToggle/BasemapToggleViewModel.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{_ as e}from"../../chunks/tslib.es6.js";import a from"../../core/Accessor.js";import{watch as t,initial as s,whenOnce as i}from"../../core/reactiveUtils.js";import{property as r}from"../../core/accessorSupport/decorators/property.js";import{cast as p}from"../../core/accessorSupport/decorators/cast.js";import"../../core/has.js";import"../../core/RandomLCG.js";import{subclass as o}from"../../core/accessorSupport/decorators/subclass.js";import{isLoaded as n,canProjectWithoutEngine as c,load as l}from"../../geometry/projection.js";import{equals as m}from"../../geometry/support/spatialReferenceUtils.js";import{basemapEnsureType as h,destroyCache as f}from"../../support/basemapEnsureType.js";import{findSpatialReference as d,getBasemapThumbnailUrl as u}from"../../support/basemapUtils.js";let g=class extends a{constructor(e){super(e),this._basemapCache={},this._loadingProjectionEngine=!1,this.nextBasemap=h("hybrid",this._basemapCache),this.view=null}initialize(){t((()=>this.nextBasemap),(e=>{e&&!e.loaded&&e.load().catch((()=>{}))}),s)}destroy(){this.view=null,f(this._basemapCache),this._basemapCache=null}get _nextBasemapSpatialReferenceTask(){return d(this.view,this.nextBasemap)}get _viewSpatialReferenceLocked(){const{view:e}=this;return!e||!("spatialReferenceLocked"in e)||e.spatialReferenceLocked}get activeBasemap(){return h(this.view?.map?.basemap??"topo-vector",this._basemapCache)}castNextBasemap(e){return h(e,this._basemapCache)}get state(){const{view:e}=this;if(!e?.ready)return"disabled";if(this._nextBasemapSpatialReferenceTask.updating)return"disabled";const{spatialReference:a}=this._nextBasemapSpatialReferenceTask;return this._viewSpatialReferenceLocked&&null!=a&&!e.spatialReference.equals(a)?"incompatible-next-basemap":this._loadingProjectionEngine?"loading":"ready"}async toggle(){const{activeBasemap:e,nextBasemap:a,state:t,view:s}=this;if(!s||"disabled"===t||"incompatible-next-basemap"===t)return;const r=this._viewSpatialReferenceLocked;if(!r){if(await i((()=>!this._nextBasemapSpatialReferenceTask.updating)),a!==this.nextBasemap||e!==this.activeBasemap)return;const{spatialReference:t}=this._nextBasemapSpatialReferenceTask;if(null==t||m(s.spatialReference,t)||n()||c(s.spatialReference,t)||(this._loadingProjectionEngine=!0,await l(),this._loadingProjectionEngine=!1),a!==this.nextBasemap||e!==this.activeBasemap)return}s.map.basemap=a,r||null==this._nextBasemapSpatialReferenceTask.spatialReference||m(s.spatialReference,this._nextBasemapSpatialReferenceTask.spatialReference)||(s.spatialReference=this._nextBasemapSpatialReferenceTask.spatialReference),this.nextBasemap=e}static getThumbnailUrl(e){return u(e)}};e([r()],g.prototype,"_loadingProjectionEngine",void 0),e([r({readOnly:!0})],g.prototype,"_nextBasemapSpatialReferenceTask",null),e([r({readOnly:!0})],g.prototype,"_viewSpatialReferenceLocked",null),e([r({readOnly:!0})],g.prototype,"activeBasemap",null),e([r()],g.prototype,"nextBasemap",void 0),e([p("nextBasemap")],g.prototype,"castNextBasemap",null),e([r({readOnly:!0})],g.prototype,"state",null),e([r()],g.prototype,"view",void 0),e([r()],g.prototype,"toggle",null),g=e([o("esri.widgets.BasemapToggle.BasemapToggleViewModel")],g);const B=g;export{B as default};