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_DataProperty.jsx
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_DataProperty.jsx
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import React from 'react'
import PropTypes from 'prop-types'
import {mdiFunctionVariant, mdiTableRowPlusAfter} from '@mdi/js';
import {latest} from '@mapbox/mapbox-gl-style-spec'
import InputButton from './InputButton'
import InputSpec from './InputSpec'
import InputNumber from './InputNumber'
import InputString from './InputString'
import InputSelect from './InputSelect'
import FieldDocLabel from './FieldDocLabel'
import Block from './Block'
import docUid from '../libs/document-uid'
import sortNumerically from '../libs/sort-numerically'
import {findDefaultFromSpec} from '../util/spec-helper';
import labelFromFieldName from './_labelFromFieldName'
import DeleteStopButton from './_DeleteStopButton'
function setStopRefs(props, state) {
// This is initialsed below only if required to improved performance.
let newRefs;
if(props.value && props.value.stops) {
props.value.stops.forEach((val, idx) => {
if(!state.refs.hasOwnProperty(idx)) {
if(!newRefs) {
newRefs = {...state};
}
newRefs[idx] = docUid("stop-");
}
})
}
return newRefs;
}
export default class DataProperty extends React.Component {
static propTypes = {
onChange: PropTypes.func,
onDeleteStop: PropTypes.func,
onAddStop: PropTypes.func,
onExpressionClick: PropTypes.func,
fieldName: PropTypes.string,
fieldType: PropTypes.string,
fieldSpec: PropTypes.object,
value: PropTypes.oneOfType([
PropTypes.object,
PropTypes.string,
PropTypes.number,
PropTypes.bool,
PropTypes.array
]),
errors: PropTypes.object,
}
state = {
refs: {}
}
componentDidMount() {
const newRefs = setStopRefs(this.props, this.state);
if(newRefs) {
this.setState({
refs: newRefs
})
}
}
static getDerivedStateFromProps(props, state) {
const newRefs = setStopRefs(props, state);
if(newRefs) {
return {
refs: newRefs
};
}
return null;
}
getFieldFunctionType(fieldSpec) {
if (fieldSpec.expression.interpolated) {
return "exponential"
}
if (fieldSpec.type === "number") {
return "interval"
}
return "categorical"
}
getDataFunctionTypes(fieldSpec) {
if (fieldSpec.expression.interpolated) {
return ["interpolate", "categorical", "interval", "exponential", "identity"]
}
else {
return ["categorical", "interval", "identity"]
}
}
// Order the stops altering the refs to reflect their new position.
orderStopsByZoom(stops) {
const mappedWithRef = stops
.map((stop, idx) => {
return {
ref: this.state.refs[idx],
data: stop
}
})
// Sort by zoom
.sort((a, b) => sortNumerically(a.data[0].zoom, b.data[0].zoom));
// Fetch the new position of the stops
const newRefs = {};
mappedWithRef
.forEach((stop, idx) =>{
newRefs[idx] = stop.ref;
})
this.setState({
refs: newRefs
});
return mappedWithRef.map((item) => item.data);
}
onChange = (fieldName, value) => {
if (value.type === "identity") {
value = {
type: value.type,
property: value.property,
};
}
else {
const stopValue = value.type === 'categorical' ? '' : 0;
value = {
property: "",
type: value.type,
// Default props if they don't already exist.
stops: [
[{zoom: 6, value: stopValue}, findDefaultFromSpec(this.props.fieldSpec)],
[{zoom: 10, value: stopValue}, findDefaultFromSpec(this.props.fieldSpec)]
],
...value,
}
}
this.props.onChange(fieldName, value);
}
changeStop(changeIdx, stopData, value) {
const stops = this.props.value.stops.slice(0)
// const changedStop = stopData.zoom === undefined ? stopData.value : stopData
stops[changeIdx] = [
{
...stopData,
zoom: (stopData.zoom === undefined) ? 0 : stopData.zoom,
},
value
];
const orderedStops = this.orderStopsByZoom(stops);
const changedValue = {
...this.props.value,
stops: orderedStops,
}
this.onChange(this.props.fieldName, changedValue)
}
changeBase(newValue) {
const changedValue = {
...this.props.value,
base: newValue
}
if (changedValue.base === undefined) {
delete changedValue["base"];
}
this.props.onChange(this.props.fieldName, changedValue)
}
changeDataType(propVal) {
if (propVal === "interpolate") {
this.props.onChangeToZoomFunction();
}
else {
this.onChange(this.props.fieldName, {
...this.props.value,
type: propVal,
});
}
}
changeDataProperty(propName, propVal) {
if (propVal) {
this.props.value[propName] = propVal
}
else {
delete this.props.value[propName]
}
this.onChange(this.props.fieldName, this.props.value)
}
render() {
const {fieldName, fieldType, errors} = this.props;
if (typeof this.props.value.type === "undefined") {
this.props.value.type = this.getFieldFunctionType(this.props.fieldSpec)
}
let dataFields;
if (this.props.value.stops) {
dataFields = this.props.value.stops.map((stop, idx) => {
const zoomLevel = typeof stop[0] === 'object' ? stop[0].zoom : undefined;
const key = this.state.refs[idx];
const dataLevel = typeof stop[0] === 'object' ? stop[0].value : stop[0];
const value = stop[1]
const deleteStopBtn = <DeleteStopButton onClick={this.props.onDeleteStop.bind(this, idx)} />
const dataProps = {
'aria-label': "Input value",
label: "Data value",
value: dataLevel,
onChange: newData => this.changeStop(idx, { zoom: zoomLevel, value: newData }, value)
}
let dataInput;
if(this.props.value.type === "categorical") {
dataInput = <InputString {...dataProps} />
}
else {
dataInput = <InputNumber {...dataProps} />
}
let zoomInput = null;
if(zoomLevel !== undefined) {
zoomInput = <div>
<InputNumber
aria-label="Zoom"
value={zoomLevel}
onChange={newZoom => this.changeStop(idx, {zoom: newZoom, value: dataLevel}, value)}
min={0}
max={22}
/>
</div>
}
const errorKeyStart = `${fieldType}.${fieldName}.stops[${idx}]`;
const foundErrors = Object.entries(errors).filter(([key, error]) => {
return key.startsWith(errorKeyStart);
});
const message = foundErrors.map(([key, error]) => {
return error.message;
}).join("");
const error = message ? {message} : undefined;
return <tr key={key}>
<td>
{zoomInput}
</td>
<td>
{dataInput}
</td>
<td>
<InputSpec
aria-label="Output value"
fieldName={this.props.fieldName}
fieldSpec={this.props.fieldSpec}
value={value}
onChange={(_, newValue) => this.changeStop(idx, {zoom: zoomLevel, value: dataLevel}, newValue)}
/>
</td>
<td>
{deleteStopBtn}
</td>
</tr>
})
}
return <div className="maputnik-data-spec-block">
<fieldset className="maputnik-data-spec-property">
<legend>{labelFromFieldName(this.props.fieldName)}</legend>
<div className="maputnik-data-fieldset-inner">
<Block
label={"Function"}
key="function"
>
<div className="maputnik-data-spec-property-input">
<InputSelect
value={this.props.value.type}
onChange={propVal => this.changeDataType(propVal)}
title={"Select a type of data scale (default is 'categorical')."}
options={this.getDataFunctionTypes(this.props.fieldSpec)}
/>
</div>
</Block>
{this.props.value.type !== "identity" &&
<Block
label={"Base"}
key="base"
>
<div className="maputnik-data-spec-property-input">
<InputSpec
fieldName={"base"}
fieldSpec={latest.function.base}
value={this.props.value.base}
onChange={(_, newValue) => this.changeBase(newValue)}
/>
</div>
</Block>
}
<Block
label={"Property"}
key="property"
>
<div className="maputnik-data-spec-property-input">
<InputString
value={this.props.value.property}
title={"Input a data property to base styles off of."}
onChange={propVal => this.changeDataProperty("property", propVal)}
/>
</div>
</Block>
{dataFields &&
<Block
label={"Default"}
key="default"
>
<InputSpec
fieldName={this.props.fieldName}
fieldSpec={this.props.fieldSpec}
value={this.props.value.default}
onChange={(_, propVal) => this.changeDataProperty("default", propVal)}
/>
</Block>
}
{dataFields &&
<div className="maputnik-function-stop">
<table className="maputnik-function-stop-table">
<caption>Stops</caption>
<thead>
<tr>
<th>Zoom</th>
<th>Input value</th>
<th rowSpan="2">Output value</th>
</tr>
</thead>
<tbody>
{dataFields}
</tbody>
</table>
</div>
}
<div className="maputnik-toolbox">
{dataFields &&
<InputButton
className="maputnik-add-stop"
onClick={this.props.onAddStop.bind(this)}
>
<svg style={{width:"14px", height:"14px", verticalAlign: "text-bottom"}} viewBox="0 0 24 24">
<path fill="currentColor" d={mdiTableRowPlusAfter} />
</svg> Add stop
</InputButton>
}
<InputButton
className="maputnik-add-stop"
onClick={this.props.onExpressionClick.bind(this)}
>
<svg style={{width:"14px", height:"14px", verticalAlign: "text-bottom"}} viewBox="0 0 24 24">
<path fill="currentColor" d={mdiFunctionVariant} />
</svg> Convert to expression
</InputButton>
</div>
</div>
</fieldset>
</div>
}
}