bigdatascreen/public/archive/static/js/jsm/node-editor/scene/PointsEditor.js

import { LabelElement } from '../../libs/flow.module.js';
import { Object3DEditor } from './Object3DEditor.js';
import { Points } from 'three';

export class PointsEditor extends Object3DEditor {

	constructor( points = null ) {

		if ( points === null ) {

			points = new Points();

		}

		super( points, 'Points' );

		this.material = null;

		this.defaultMaterial = null;

		this._initMaterial();

		this.updateDefault();
		this.restoreDefault();
		this.update();

	}

	get points() {

		return this.value;

	}

	_initMaterial() {

		const materialElement = new LabelElement( 'Material' ).setInputColor( 'forestgreen' ).setInput( 1 );

		materialElement.onValid( ( source, target, stage ) => {

			const object = target.getObject();

			if ( object && object.isMaterial !== true ) {

				if ( stage === 'dragged' ) {

					const name = target.node.getName();

					this.editor.tips.error( `"${name}" is not a Material.` );

				}

				return false;

			}

		} ).onConnect( () => {

			this.material = materialElement.getLinkedObject() || this.defaultMaterial;

			this.update();

		} );

		this.add( materialElement );

	}

	update() {

		super.update();

		const points = this.points;

		if ( points ) {

			points.material = this.material || this.defaultMaterial;

		}

	}

	updateDefault() {

		super.updateDefault();

		this.defaultMaterial = this.points.material;

	}

	restoreDefault() {

		super.restoreDefault();

		this.points.material = this.defaultMaterial;

	}

}