@globalfishingwatch/react-map-gl/src/overlays/svg-overlay.js

A React wrapper for MapboxGL-js and overlay API.

// @flow

// Copyright (c) 2015 Uber Technologies, Inc.

// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

import * as React from 'react';
import PropTypes from 'prop-types';
import useMapControl, {mapControlPropTypes} from '../components/use-map-control';

import type {MapControlProps} from '../components/use-map-control';

const propTypes = Object.assign({}, mapControlPropTypes, {
  redraw: PropTypes.func.isRequired,
  style: PropTypes.object
});

const defaultProps = {
  captureScroll: false,
  captureDrag: false,
  captureClick: false,
  captureDoubleClick: false,
  capturePointerMove: false
};

export type SVGOverlayProps = MapControlProps & {
  redraw: Function,
  style?: Object
};

function SVGOverlay(props: SVGOverlayProps) {
  const {context, containerRef} = useMapControl(props);
  const {viewport, isDragging} = context;
  const style = {
    position: 'absolute',
    left: 0,
    top: 0,
    ...props.style
  };

  return (
    // $FlowFixMe
    <svg width={viewport.width} height={viewport.height} ref={containerRef} style={style}>
      {props.redraw({
        width: viewport.width,
        height: viewport.height,
        isDragging,
        project: viewport.project,
        unproject: viewport.unproject
      })}
    </svg>
  );
}

SVGOverlay.propTypes = propTypes;
SVGOverlay.defaultProps = defaultProps;

export default SVGOverlay;