@arcgis/core/widgets/Attribution/AttributionViewModel.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 t}from"../../chunks/tslib.es6.js";import e from"../../core/Accessor.js";import{result as i}from"../../core/asyncUtils.js";import r from"../../core/Collection.js";import{watch as s,on as o,when as n}from"../../core/reactiveUtils.js";import{property as a}from"../../core/accessorSupport/decorators/property.js";import"../../core/has.js";import"../../core/Logger.js";import"../../core/RandomLCG.js";import{subclass as c}from"../../core/accessorSupport/decorators/subclass.js";import l from"../../geometry/Extent.js";import h from"../../geometry/SpatialReference.js";import{extentContainsPoint as u}from"../../geometry/support/contains.js";import{geographicToWebMercator as d,project as m}from"../../geometry/support/webMercatorUtils.js";import{getLyr3DWasm as p}from"../../views/3d/layers/Lyr3DWasm.js";function f(t,e){return t&&"copyright"in t&&(!e||"function"==typeof t.originOf&&"user"===t.originOf("copyright"))}function y(t,e){return t.length!==e.length||t.some(((t,i)=>t.text!==e[i].text))}function b(t,e,i){if(!i||!e)return;t.find((t=>t.layerView===e&&t.text===i))||t.push({text:i,layerView:e})}function g(t){return"bing-maps"===t.type}const A=[];let _=class extends e{constructor(t){super(t),this._clear=()=>{this._fetchedAttributionData.clear(),this._pendingAttributions.clear(),this.removeHandles("suspension"),this.notifyChange("state")},this._pendingAttributions=new Set,this._fetchedAttributionData=new Map,this.items=new r,this.view=null,this._allLayerViewsChange=t=>{this.removeHandles("suspension"),this.removeHandles("visible-geometry-changed");const e=this.view?.allLayerViews;e&&(this.addHandles(e.map((t=>s((()=>[t.suspended,t.layer?.attributionVisible]),(()=>this._updateAttributionItems())))).toArray(),"suspension"),e.forEach((t=>{"esri.views.3d.layers.Tiles3DLayerView3D"===t.declaredClass&&this.addHandles(t.on("visible-geometry-changed",(()=>this._updateAttributionItems())),"visible-geometry-changed")}))),t?.removed&&t.removed.forEach((t=>{this._pendingAttributions.delete(t),this._fetchedAttributionData.delete(t)})),this._updateAttributionItems()},this.addHandles([o((()=>this.view?.allLayerViews),"change",(t=>this._allLayerViewsChange(t)),{onListenerAdd:()=>this._allLayerViewsChange(),onListenerRemove:this._clear}),n((()=>!0===this.view?.stationary),(()=>this._updateAttributionItems()))])}destroy(){this.view=null,this._fetchedAttributionData.clear(),this._pendingAttributions.clear(),this.items.removeAll()}get state(){return this.view?.ready?this._pendingAttributions.size>0?"loading":"ready":"disabled"}_updateAttributionItems(){const t=this.view,e=t?.allLayerViews;if(A.length=0,!t||!e)return void this._clear();e.forEach((e=>{if(e.suspended||!e.layer?.attributionVisible)return;const i=e.layer;if(f(i,"user"))return void b(A,e,i.copyright);if(i.hasAttributionData){if(this._fetchedAttributionData.has(e)){const r=this._fetchedAttributionData.get(e);return void(r?b(A,e,this._getDynamicAttribution(r,t,i)):f(i)&&b(A,e,i.copyright))}return void this._fetchAttributionData(e)}const r="portalItem"in i?i.portalItem?.accessInformation:void 0;b(A,e,r||i.copyright)}));const i=e.find((t=>"integrated-mesh-3dtiles"===t.layer?.type));if(this.view&&i){const t=p(this.view);if(t){const e=t.getAttributionText();for(let t=0;t<e.length;++t)b(A,i,e[t])}}y(this.items,A)&&(this.items.removeAll(),this.items.addMany(A)),A.length=0,this.notifyChange("state")}async _fetchAttributionData(t){if(this._pendingAttributions.has(t))return;this._pendingAttributions.add(t);const e=await i(t.layer.fetchAttributionData());if(this._pendingAttributions.has(t)){const i=e.ok?this._createContributionIndex(e.value,g(t.layer)):null;this._pendingAttributions.delete(t),this._fetchedAttributionData.set(t,i)}this._updateAttributionItems()}_createContributionIndex(t,e){const i=t.contributors,r={};if(!i)return r;for(let s=0;s<i.length;s++){const t=i[s],o=t.coverageAreas;if(!o)return;for(const i of o){const o=i.bbox,n=i.zoomMin-(e&&i.zoomMin?1:0),a=i.zoomMax-(e&&i.zoomMax?1:0),c=new l({xmin:o[1],ymin:o[0],xmax:o[3],ymax:o[2],spatialReference:h.WGS84}),u={extent:d(c),attribution:t.attribution||"",score:null!=i.score?i.score:100,id:s};for(let t=n;t<=a;t++)r[t]??=[],r[t].push(u)}}return r.maxKey=Math.max.apply(null,Object.keys(r)),r}_getDynamicAttribution(t,e,i){const{extent:r,scale:s}=e;let o=i.tileInfo?.scaleToZoom(s)??0;if(o=Math.min(t.maxKey??0,Math.round(o)),!r||null==o||o<=-1)return"";const n=t[o],a=m(r.center.clone().normalize(),h.WebMercator),c=new Set;return n?n.filter((t=>{const e=t.id,i=!c.has(e)&&a&&t.extent&&u(t.extent,a);return i&&c.add(e),i})).sort(((t,e)=>e.score-t.score||t.objectId-e.objectId)).map((t=>t.attribution)).join(", "):""}};t([a({readOnly:!0,type:r})],_.prototype,"items",void 0),t([a({readOnly:!0})],_.prototype,"state",null),t([a()],_.prototype,"view",void 0),_=t([c("esri.widgets.Attribution.AttributionViewModel")],_);const v=_;export{v as default};