1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
import 'mapbox-gl/dist/mapbox-gl.css';
import './switcher/switcher.css';
import mapboxgl from 'mapbox-gl';
import { SwitcherControl } from './switcher/switcher';
import React, { useRef, useLayoutEffect, useEffect, useState } from 'react';
import { deviceCategories } from '../common/deviceCategories';
import { loadIcon, loadImage } from './mapUtil';
import { styleCarto, styleMapbox, styleOsm } from './mapStyles';
import t from '../common/localization';
import { useAttributePreference } from '../common/preferences';
const element = document.createElement('div');
element.style.width = '100%';
element.style.height = '100%';
export const map = new mapboxgl.Map({
container: element,
style: styleOsm(),
});
let ready = false;
const readyListeners = new Set();
const addReadyListener = listener => {
readyListeners.add(listener);
listener(ready);
};
const removeReadyListener = listener => {
readyListeners.delete(listener);
};
const updateReadyValue = value => {
ready = value;
readyListeners.forEach(listener => listener(value));
};
const onIdle = function () {
const zoom = Math.round(map.getZoom())
if (zoom !== map.getZoom()) {
map.zoomTo(zoom)
}
};
const isRasterMap = map => Object.values(map.getStyle().sources).some(e => e.type === 'raster');
const setAllowedZoomLevels = map => {
if(isRasterMap(map)) {
map.scrollZoom.setWheelZoomRate(1);
map.on('idle', onIdle);
} else {
map.scrollZoom.setWheelZoomRate(1/450);
map.off('idle', onIdle);
}
};
const initMap = async () => {
setAllowedZoomLevels(map);
const background = await loadImage('images/background.svg');
await Promise.all(deviceCategories.map(async category => {
if (!map.hasImage(category)) {
const imageData = await loadIcon(category, background, `images/icon/${category}.svg`);
map.addImage(category, imageData, { pixelRatio: window.devicePixelRatio });
}
}));
updateReadyValue(true);
};
map.on('load', initMap);
map.addControl(new mapboxgl.NavigationControl({
showCompass: false,
}));
map.addControl(new SwitcherControl(
[
{ title: t('mapOsm'), uri: styleOsm() },
{ title: t('mapCarto'), uri: styleCarto() },
{ title: t('mapMapboxStreets'), uri: styleMapbox('streets-v11') },
{ title: t('mapMapboxOutdoors'), uri: styleMapbox('outdoors-v11') },
{ title: t('mapMapboxSatellite'), uri: styleMapbox('satellite-v9') },
],
t('mapOsm'),
() => updateReadyValue(false),
() => {
const waiting = () => {
if (!map.loaded()) {
setTimeout(waiting, 100);
} else {
initMap();
}
};
waiting();
},
));
const Map = ({ children }) => {
const containerEl = useRef(null);
const [mapReady, setMapReady] = useState(false);
const mapboxAccessToken = useAttributePreference('mapboxAccessToken');
useEffect(() => {
mapboxgl.accessToken = mapboxAccessToken;
}, [mapboxAccessToken]);
useEffect(() => {
const listener = ready => setMapReady(ready);
addReadyListener(listener);
return () => {
removeReadyListener(listener);
};
}, []);
useLayoutEffect(() => {
const currentEl = containerEl.current;
currentEl.appendChild(element);
if (map) {
map.resize();
}
return () => {
currentEl.removeChild(element);
};
}, [containerEl]);
return (
<div style={{ width: '100%', height: '100%' }} ref={containerEl}>
{mapReady && children}
</div>
);
};
export default Map;
|
