GeoDistanceSlider

GeoDistanceSlider creates a location search based range slider UI component that is connected to a database field. It is used for distance based filtering.

Example uses:

• finding restaurants in walking distance from your location.
• discovering things to do near a landmark.

Usage

Basic Usage

<ReactiveBase
  mapLibraries={['places']} // required
>
    <GeoDistanceSlider
        componentId="locationUI"
        dataField="location"
        range={{
            start: 0,
            end: 20,
        }}
    />
</ReactiveBase>

Usage With All Props

<ReactiveBase
  mapLibraries={['places']} // required
>
    <GeoDistanceSlider
        componentId="GeoDistanceSensor"
        dataField="location"
        title="Geo Distance Slider"
        range={{
            start: 0,
            end: 20,
        }}
        rangeLabels={{
            start: '0 mi',
            end: '20 mi',
        }}
        defaultValue={{
            location: 'London, UK',
            distance: 12,
        }}
        countries={['uk']}
        placeholder="Select a distance range.."
        unit="mi"
        autoLocation={true}
        showFilter={true}
        filterLabel="Location"
        URLParams={false}
        onData={
        (prop) => {
            const {value, error} = prop;
            // do something
        }
        }    
    />
</ReactiveBase>    

Props

componentId

unique identifier of the component, can be referenced in other components' react prop.

dataField

data field to be connected to the component's UI view.

nestedField

use to set the nested mapping field that allows arrays of objects to be indexed in a way that they can be queried independently of each other. Applicable only when dataField is a part of nested type.

title

title of the component to be shown in the UI.

range

an object with start and end keys and corresponding numeric values denoting the minimum and maximum possible slider values.

rangeLabels

an object with start and end keys and corresponding String labels to show labels near the ends of the GeoDistanceSlider component.

defaultValue

pre-select the search query with location option and distance with distance option.

placeholder

set the placeholder to show in the location search box, useful when no option is defaultValue.

value

controls the current value of the component. It sets the location & distance (on mount and on update). Use this prop in conjunction with onChange function.

onChange

is a callback function which accepts component's current value as a parameter. It is called when you are using the value prop and the component's value changes. This prop is used to implement the controlled component behavior.

showIcon

whether to display a search or custom icon in the input box. Defaults to true.

iconPosition

sets the position of the search icon. Can be left or right. Defaults to right.

icon

displays a custom search icon instead of the default 🔍

unit

unit for distance measurement, uses mi (for miles) by default. Distance units can be specified from the following:

autoLocation

when enabled, preset the user's current location in the location search box. Defaults to true.

showFilter

show as filter when a value is selected in a global selected filters view. Defaults to true.

filterLabel

An optional label to display for the component in the global selected filters view. This is only applicable if showFilter is enabled. Default value used here is componentId.

URLParams

enable creating a URL query string parameter based on the selected location from the slider. This is useful for sharing URLs with the component state. Defaults to false.

countries

restricts predictions to specified country (ISO 3166-1 Alpha-2 country code, case insensitive). For example, 'us', 'in', or 'au'. You can provide an array of up to five country code strings.

serviceOptions

allows to add more options to AutoCompletionRequest, available from Google Places library

tooltipTrigger

trigger the tooltip according to the value specified. Can be hover, focus, always and none. Defaults to none.

renderTooltipData

customize the rendered tooltip content via a function which receives the tooltip content and expects a JSX or String back. For example:

renderTooltipData={data => (
    <h5 style={{
        color: 'red',
        textDecoration: 'underline'
    }}>
        {data}
    </h5>
)}

geocoder

give your own geocoder tool to mimic Google Map's one. Usefull if using ReactiveOpenStreetMap only and you want to search arround your positionned data. For example:

geocoder={{geocode: function (data, todo) {
    if (data.location) {
        todo([{formatted_address: data.location.lat + ',' + data.location.lng}],'OK');
    } else if (data.address) {
        const [tlat,tlng] = data.address.split(',');
        todo([{geometry: {location: {lat: () => tlat, lng: () => tlng}}}],'OK');
    } else {
        todo(null,'Not an address or a location');
    }
    }}

onData

gets triggered after data changes, which returns an object with these properties: value & error.

onData={
    (prop) => {
        const {value, error} = prop;
        // do something
    }
}

Demo

Styles

GeoDistanceSlider component supports innerClass prop with the following keys:

• title
• input
• list
• slider
• select
• count

Read more about it here.

Extending

GeoDistanceSlider component can be extended to

1. customize the look and feel with className, style,
2. update the underlying DB query with customQuery,
3. connect with external interfaces using beforeValueChange, onValueChange and onQueryChange.
4. specify how options should be filtered or updated using react prop.
5. add the following synthetic events to the underlying input element:
   • onBlur
   • onFocus
   • onKeyPress
   • onKeyDown
   • onKeyUp
   • autoFocus

<GeoDistanceSlider
  ...
  className="custom-class"
  style={{"paddingBottom": "10px"}}
  customQuery={
    function(location, distance, props) {
      return {
        // query in the format of Elasticsearch Query DSL
        geo_distance: {
          distance: distance + props.unit,
          location_dataField: location
        }
      }
    }
  }
  beforeValueChange={
    function(value) {
      // called before the value is set
      // returns a promise
      return new Promise((resolve, reject) => {
        // update state or component props
        resolve()
        // or reject()
      })
    }
  }
  onValueChange={
    function(value) {
      console.log("current value: ", value)
      // set the state
      // use the value with other js code
    }
  }
  onQueryChange={
    function(prevQuery, nextQuery) {
      // use the query with other js code
      console.log('prevQuery', prevQuery);
      console.log('nextQuery', nextQuery);
    }
  }
/>

className

CSS class to be injected on the component container.

style

CSS styles to be applied to the GeoDistanceSlider component.

customQuery

takes location, distance and props as parameters and returns the data query to be applied to the component, as defined in Elasticsearch Query DSL.
Note: customQuery is called on value changes in the GeoDistanceSlider component as long as the component is a part of react dependency of at least one other component.

beforeValueChange

is a callback function which accepts component's future value as a parameter and returns a promise. It is called every time before a component's value changes. The promise, if and when resolved, triggers the execution of the component's query and if rejected, kills the query execution. This method can act as a gatekeeper for query execution, since it only executes the query after the provided promise has been resolved.

onValueChange

is a callback function which accepts component's current value as a parameter. It is called every time the component's value changes. This prop is handy in cases where you want to generate a side-effect on value selection. For example: You want to show a pop-up modal with the valid discount coupon code when a user searches within a specific location area.

onQueryChange

is a callback function which accepts component's prevQuery and nextQuery as parameters. It is called everytime the component's query changes. This prop is handy in cases where you want to generate a side-effect whenever the component's query would change.

react

specify dependent components to reactively update GeoDistanceSlider's options. Read more about it here.

• key String one of and, or, not defines the combining clause.
  • and clause implies that the results will be filtered by matches from all of the associated component states.
  • or clause implies that the results will be filtered by matches from at least one of the associated component states.
  • not clause implies that the results will be filtered by an inverse match of the associated component states.
• value String or Array or Object
  • String is used for specifying a single component by its componentId.
  • Array is used for specifying multiple components by their componentId.
  • Object is used for nesting other key clauses.

Examples

GeoDistance Slider with all the default props