react-jsonschema-form-field-geolocation

Geolocation field for react-jsonschema-form

See demo at https://bopen.github.io/react-jsonschema-form-field-geolocation.

Install

npm install --save react-jsonschema-form-field-geolocation

You also need to install a bunch on peer dependencies:

• ol (OpenLayers)
• ol-geocoder
• styled-components

Plus: you must include required CSS from both ol and ol-geocoder packages:

import 'ol/ol.css'
import 'ol-geocoder/dist/ol-geocoder.min.css'

Usage

Integrating in the Form

Adding new fields to the default JSON schema set requires to use the fields prop:

import React, { Component } from 'react'
import Form from 'react-jsonschema-form';
import GeolocationField from 'react-jsonschema-form-field-geolocation';

const schema = {
  title: 'Geolocation example',
  type: 'object',
  properties: {
    position: {
      type: 'object',
      title: 'Position',
      required: ['lat', 'lng'],
      properties: {
        lat: { type: 'number', title: 'Latitude' },
        lng: { type: 'number', title: 'Longitude' }
      }
    }
  }
};

const uiSchema = {
  position: {
    'ui:field': 'geolocation',
    zoom: 7,
    defaultLocation: {
      lat: 51.50853,
      lng: -0.076132
    }
  }
};

class App extends Component {
  render () {
    return (
      <Form
        fields={{geolocation: GeolocationField}}
        schema={schema}
        uiSchema={uiSchema}
      />
    )
  }
}

If you are already importing 3rd party fields, remember to merge them in a single prop:

import otherFields from "other-fields";
import geofields from 'react-jsonschema-form-field-geolocation';

let fields = Object.assign({}, geofields, otherFields);

See "Custom field components" documentation for more.

Customization

By providing the (optional) uiSchema prop you can customize the widget:

• zoom - the default zoom to start from (default is 4)

• defaultLocation - a lat/lng object used for the default map location. This is not required if you provide a form value using the standard formData object, but you should provide a default map location to display.

• height - the map height. Setting an height is required by OpenLayers (with this props, or by CSS)

• geocoder settings passed to the ol-geocoder instance. Default value (see documentation for options defails):

• showTitle - default to true. Display the field title; default value is commonly OK, but you could like to disable it when using custom field template

    {
      provider: 'osm',
      placeholder: 'Search for ...',
      targetType: 'glass-button',
      limit: 5,
      keepOpen: false,
      autoComplete: true,
      autoCompleteMinLength: 4,
      preventDefault: true,
    }

License

MIT © bopen