@doegis/core/views/3d/input/handlers/DragRotate.js

DOE GIS API

import{createScreenPointArray as t}from"../../../../core/screenUtils.js";import{RotateController as r}from"../../state/controllers/RotateController.js";export{PivotPoint}from"../../state/controllers/RotateController.js";import{InputHandler as e}from"../../../input/InputHandler.js";import{eventMatchesMousePointerAction as o}from"../../../input/handlers/support.js";class a extends e{constructor(t,r,e,o){super(!0),this._view=t,this.pointerAction=r,this._pivot=e,this.registerIncoming("drag",o,(t=>this._handleDrag(t)))}_handleDrag(e){const a=e.data;if(a.pointers.size>1)return;if(!o(e.data,this.pointerAction))return;const i=t(a.center.x,a.center.y);switch(a.action){case"start":this._cameraController&&(this._cameraController.end(),this._cameraController=null),this._cameraController=new r({view:this._view,pivot:this._pivot}),this._view.state.switchCameraController(this._cameraController),this._cameraController.begin(i);break;case"update":this._cameraController&&this._cameraController.update(i);break;case"end":this._cameraController&&(this._cameraController.end(),this._cameraController=null)}e.stopPropagation()}}export{a as DragRotate};