@arcgis/core/views/2d/FrameTask.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{isPromiseLike as e}from"../../core/promiseUtils.js";import{when as t,watch as a}from"../../core/reactiveUtils.js";import{addFrameTask as s}from"../../core/scheduling.js";import i from"./PaddedViewState.js";import{RenderState as r}from"../support/RenderState.js";import{newScheduler as d}from"../support/Scheduler.js";class h{constructor(a){this.view=a,this._stationaryHandle=null,this._frameTaskHandle=null,this._updateParameters=null,this._updateRequested=!1,this._scheduler=d(),this._schedulerHandle=t((()=>this._scheduler.updating),(()=>this.requestFrame())),this.stationary=!0,this.prepare=()=>{this._updateParameters&&(this._updateParameters.state=this.view.state,this._updateParameters.stationary=this.view.stationary,this._updateParameters.pixelRatio=window.devicePixelRatio,this._updateParameters.renderingOptions=this.view.renderingOptions,this._updateParameters.targetState.copy(this.view.state),null==this.view.animation?.target||e(this.view.animation.target)||(this._updateParameters.targetState.viewpoint=this.view.animation.target))},this.update=e=>{if(this._updateRequested=!1,this.view?.destroyed)return;const{allLayerViews:t,graphicsView:a,labelManager:s,state:{id:i}}=this.view;t?.forEach(this._updateLayerView,this),null!=s&&(s.lastUpdateId!==i&&(s.viewChange(),s.lastUpdateId=i),s.updateRequested&&s.processUpdate(this._updateParameters)),null!=a&&(a.lastUpdateId!==i&&(a.viewChange(),a.lastUpdateId=i),a.updateRequested&&a.processUpdate(this._updateParameters)),this.view.graphicsTileStore?.setViewState(this._updateParameters.state),this.view.animation?this._scheduler.state=r.ANIMATING:this.view.interacting?this._scheduler.state=r.INTERACTING:this._scheduler.state=r.IDLE;this._scheduler.frame(e)||this._updateRequested||this._scheduler.state!==r.IDLE||this._frameTaskHandle?.pause()}}destroy(){this.stop(),this._schedulerHandle.remove(),this._scheduler.destroy()}get scheduler(){return this._scheduler}start(){if(this._frameTaskHandle)return;const e=this.view;this.stationary=e.stationary,this._updateParameters={state:e.state,targetState:new i,pixelRatio:window.devicePixelRatio,stationary:this.stationary,renderingOptions:e.renderingOptions},this._stationaryHandle=a((()=>e.stationary),(e=>{this.stationary=e,this.requestFrame()})),this._frameTaskHandle=s(this),this.requestUpdate()}stop(){this._frameTaskHandle&&(this._updateRequested=!1,this._stationaryHandle?.remove(),this._frameTaskHandle.remove(),this._updateParameters=this._stationaryHandle=this._frameTaskHandle=null,this.stationary=!0)}requestUpdate(){this._updateRequested||(this._updateRequested=!0,this.requestFrame())}requestFrame(){this._frameTaskHandle&&this._frameTaskHandle.resume()}_updateLayerView(e){if(!e.attached)return void this.requestUpdate();const t=this.view.state,a=e.lastUpdateId;null!=a&&(this.stationary||e.moving)||(e.moving=!0),a!==t.id&&e.viewChange(),this.stationary&&e.moving&&(e.moving=!1,e.moveEnd()),e.lastUpdateId=t.id,e.updateRequested&&e.processUpdate(this._updateParameters),"layerViews"in e&&e.layerViews?.forEach(this._updateLayerView,this)}}export{h as default};