react-map-gl/examples/main/views/click-example.js
2017-04-17 10:40:00 -07:00

78 lines
2.4 KiB
JavaScript

// 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 React, {Component} from 'react';
import PropTypes from 'prop-types';
import MapGL, {autobind} from 'react-map-gl';
/* global window */
const windowAlert = window.alert;
const propTypes = {
width: PropTypes.number.isRequired,
height: PropTypes.number.isRequired
};
export default class ClickExample extends Component {
constructor(props) {
super(props);
this.state = {
viewport: {
latitude: 37.7736092599127,
longitude: -122.42312591099463,
zoom: 12.011557070552028,
startDragLngLat: null,
isDragging: false
}
};
autobind(this);
}
_onChangeViewport(viewport) {
this.setState({viewport});
}
_onClickFeatures(features) {
const placeNames = features
.filter(feature => feature.layer['source-layer'] === 'place_label')
.map(feature => feature.properties.name);
windowAlert(placeNames);
}
_onClick(coordinates, pos) {
windowAlert(`${coordinates}\n${JSON.stringify(pos)}`);
}
render() {
const viewport = {
...this.state.viewport,
...this.props
};
return (
<MapGL { ...viewport }
onChangeViewport={ this._onChangeViewport }
onClickFeatures={ this._onClickFeatures }
onClick={ this._onClick }/>
);
}
}
ClickExample.propTypes = propTypes;