rlayers/dist/style/RBaseStyle.js

React Components for OpenLayers

import React from 'react';
import { RContext } from '../context';
import debug from '../debug';
/**
 * An abstract class used as base for all Style components, not meant to be used directly
 */
export default class RBaseStyle extends React.PureComponent {
    constructor(props, context) {
        super(props, context);
        if (!this.context)
            throw new Error('A style property must be part of a style');
        this.ol = this.create(props);
    }
    /* istanbul ignore next */
    create(props) {
        throw new Error('RBaseStyle is an abstract class');
    }
    refresh(prevProps) {
        debug('refreshStyle', this);
        if (!prevProps)
            return;
        for (const p of this.classProps) {
            const m = p.charAt(0).toUpperCase() + p.substring(1);
            if ((prevProps && prevProps[p]) !== this.props[p]) {
                if (this.ol['set' + m]) {
                    this.ol['set' + m](this.props[p]);
                }
                else {
                    // eslint-disable-next-line no-console
                    console.error(`Underlying OpenLayers object does not support updating of ${p} after object creation. ` +
                        'If you are using an anonymous constant array or object, ' +
                        'consider assigning its value to a constant and then passing the constant or ' +
                        'use React.useMemo() to avoid this warning and improve performance.');
                }
            }
        }
    }
    /* istanbul ignore next */
    set(ol) {
        return;
    }
    componentDidMount() {
        this.set(this.ol);
    }
    componentDidUpdate(prevProps, prevState, snapshot) {
        if (prevProps !== this.props)
            this.refresh(prevProps);
    }
    componentWillUnmount() {
        this.set(null);
    }
    render() {
        return null;
    }
}
RBaseStyle.contextType = RContext;
RBaseStyle.classProps = [];
//# sourceMappingURL=RBaseStyle.js.map