@arcgis/core/views/overlay/ViewOverlay.js

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

/* COPYRIGHT Esri - https://js.arcgis.com/5.0.19/LICENSE.txt */
import{__decorate as t}from"tslib";import e from"../../core/Accessor.js";import o from"../../core/Collection.js";import{property as r,subclass as i}from"../../core/accessorSupport/decorators.js";import{UpdatingHandles as s}from"../../core/support/UpdatingHandles.js";import"../../libs/maquette/projection.js";import{createProjector as n}from"../../libs/maquette/projector.js";let a=class extends e{constructor(){super(...arguments),this.items=new o,this._watchUpdatingTracking=new s,this._callbacks=new Map,this._projector=n(),this._hiddenProjector=n()}get needsRender(){return this.items.length>0}get updating(){return this._watchUpdatingTracking?.updating??!1}initialize(){const t=document.createElement("div");t.className="esri-overlay-surface",this._set("surface",t),this._hiddenSurface=document.createElement("div"),this._hiddenSurface.setAttribute("style","visibility: hidden;"),t.appendChild(this._hiddenSurface),this._watchUpdatingTracking.addOnCollectionChange(()=>this.items,t=>{for(const e of t.added){const t=()=>e.render();this._callbacks.set(e,t),this._projector.append(this.surface,t)}for(const e of t.removed){const t=this._projector.detach(this._callbacks.get(e));this.surface.removeChild(t.domNode),this._callbacks.delete(e)}})}addItem(t){this.items.add(t)}removeItem(t){this.items.remove(t)}destroy(){this.items.removeAll(),this._callbacks.forEach(t=>this._projector.detach(t)),this._callbacks=null,this._projector=null,this._watchUpdatingTracking.destroy()}render(){this._projector.renderNow()}computeBoundingRect(t){const e=this._hiddenSurface,o=this._hiddenProjector;let r;const i=()=>(r=t.render(),r);o.append(e,i),o.renderNow();const s={left:0,top:0,right:0,bottom:0};if(r?.domNode){const t=r.domNode.getBoundingClientRect();s.left=t.left,s.top=t.top,s.right=t.right,s.bottom=t.bottom}for(o.detach(i);e.firstChild;)e.removeChild(e.firstChild);return s}overlaps(t,e){const o=this.computeBoundingRect(t),r=this.computeBoundingRect(e);return Math.max(o.left,r.left)<=Math.min(o.right,r.right)&&Math.max(o.top,r.top)<=Math.min(o.bottom,r.bottom)}get hasVisibleItems(){return this.items.some(t=>t.visible)}async prepare(){await document.fonts.load(this._fontString()).catch(()=>{})}renderCanvas(t,e){const o=!!e?.disableDecorations;if(!this.items.some(t=>t.visible&&!(o&&t.isDecoration)))return;const r=t.getContext("2d");r.save(),r.font=this._fontString(),this.items.forEach(t=>{o&&t.isDecoration||(r.save(),t.renderCanvas(r),r.restore())}),r.restore()}_fontString(){return`10px ${getComputedStyle(this.surface).fontFamily}`}};t([r({readOnly:!0})],a.prototype,"surface",void 0),t([r({readOnly:!0})],a.prototype,"items",void 0),t([r({readOnly:!0})],a.prototype,"needsRender",null),t([r({readOnly:!0})],a.prototype,"_watchUpdatingTracking",void 0),t([r({readOnly:!0})],a.prototype,"updating",null),a=t([i("esri.views.overlay.ViewOverlay")],a);const c=a;export{c as default};