File size: 3,812 Bytes
1e92f2d | 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 | import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { LatLngPropType, BoundingBoxPropType } from './propTypes';
import GeoSearchContext from './GeoSearchContext';
class Provider extends Component {
static propTypes = {
google: PropTypes.object.isRequired,
hits: PropTypes.arrayOf(PropTypes.object).isRequired,
isRefineOnMapMove: PropTypes.bool.isRequired,
hasMapMoveSinceLastRefine: PropTypes.bool.isRequired,
isRefineEnable: PropTypes.bool.isRequired,
refine: PropTypes.func.isRequired,
toggleRefineOnMapMove: PropTypes.func.isRequired,
setMapMoveSinceLastRefine: PropTypes.func.isRequired,
children: PropTypes.func.isRequired,
position: LatLngPropType,
currentRefinement: BoundingBoxPropType,
};
isPendingRefine = false;
boundingBox = null;
previousBoundingBox = null;
refineWithInstance = (instance) => {
const { refine } = this.props;
const bounds = instance.getBounds();
refine({
northEast: bounds.getNorthEast().toJSON(),
southWest: bounds.getSouthWest().toJSON(),
});
};
mapValue = {
isRefineOnMapMove: this.props.isRefineOnMapMove,
hasMapMoveSinceLastRefine: this.props.hasMapMoveSinceLastRefine,
toggleRefineOnMapMove: this.props.toggleRefineOnMapMove,
setMapMoveSinceLastRefine: this.props.setMapMoveSinceLastRefine,
refineWithInstance: this.refineWithInstance,
};
getMapValue = () => {
const haveContextValuesChanges =
this.mapValue.isRefineOnMapMove !== this.props.isRefineOnMapMove ||
this.mapValue.hasMapMoveSinceLastRefine !==
this.props.hasMapMoveSinceLastRefine;
if (haveContextValuesChanges) {
this.mapValue = {
...this.mapValue,
isRefineOnMapMove: this.props.isRefineOnMapMove,
hasMapMoveSinceLastRefine: this.props.hasMapMoveSinceLastRefine,
};
}
return this.mapValue;
};
createBoundingBoxFromHits(hits) {
const { google } = this.props;
const latLngBounds = hits.reduce(
(acc, hit) => acc.extend(hit._geoloc),
new google.maps.LatLngBounds()
);
return {
northEast: latLngBounds.getNorthEast().toJSON(),
southWest: latLngBounds.getSouthWest().toJSON(),
};
}
onChange = () => {
const { isRefineOnMapMove, isRefineEnable, setMapMoveSinceLastRefine } =
this.props;
if (isRefineEnable) {
setMapMoveSinceLastRefine(true);
if (isRefineOnMapMove) {
this.isPendingRefine = true;
}
}
};
onIdle = ({ instance }) => {
if (this.isPendingRefine) {
this.isPendingRefine = false;
this.refineWithInstance(instance);
}
};
shouldUpdate = () => {
const { hasMapMoveSinceLastRefine } = this.props;
return !this.isPendingRefine && !hasMapMoveSinceLastRefine;
};
render() {
const { hits, currentRefinement, children } = this.props;
// We use this value for differentiate the padding to apply during
// fitBounds. When we don't have a currenRefinement (boundingBox)
// we let GoogleMaps compute the automatic padding. But when we
// provide the currentRefinement we explicitly set the padding
// to `0` otherwise the map will decrease the zoom on each refine.
const boundingBoxPadding = !currentRefinement ? undefined : 0;
const boundingBox =
!currentRefinement && Boolean(hits.length)
? this.createBoundingBoxFromHits(hits)
: currentRefinement;
return (
<GeoSearchContext.Provider value={this.getMapValue()}>
{children({
onChange: this.onChange,
onIdle: this.onIdle,
shouldUpdate: this.shouldUpdate,
boundingBox,
boundingBoxPadding,
})}
</GeoSearchContext.Provider>
);
}
}
export default Provider;
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