/
RelationControl.js
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/
RelationControl.js
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import React from 'react';
import PropTypes from 'prop-types';
import ImmutablePropTypes from 'react-immutable-proptypes';
import { components } from 'react-select';
import AsyncSelect from 'react-select/async';
import { debounce, find, get, isEmpty, last, uniqBy } from 'lodash';
import { fromJS, List, Map } from 'immutable';
import { reactSelectStyles } from 'decap-cms-ui-default';
import { stringTemplate, validations } from 'decap-cms-lib-widgets';
import { FixedSizeList } from 'react-window';
import {
DndContext,
MouseSensor,
TouchSensor,
closestCenter,
useSensor,
useSensors,
} from '@dnd-kit/core';
import { SortableContext, horizontalListSortingStrategy, useSortable } from '@dnd-kit/sortable';
import { restrictToParentElement } from '@dnd-kit/modifiers';
import { CSS } from '@dnd-kit/utilities';
import { v4 as uuid } from 'uuid';
function arrayMove(array, from, to) {
const slicedArray = array.slice();
slicedArray.splice(to < 0 ? array.length + to : to, 0, slicedArray.splice(from, 1)[0]);
return slicedArray;
}
function MultiValue(props) {
const { setNodeRef, transform, transition } = useSortable({
id: props.data.data.id,
});
function onMouseDown(e) {
e.preventDefault();
e.stopPropagation();
}
const style = {
transform: CSS.Transform.toString(transform),
transition,
};
const innerProps = { ...props.innerProps, onMouseDown };
return (
<div ref={setNodeRef} style={style}>
<components.MultiValue {...props} innerProps={innerProps} />
</div>
);
}
function MultiValueLabel(props) {
const { attributes, listeners } = useSortable({
id: props.data.data.id,
});
return (
<div {...attributes} {...listeners}>
<components.MultiValueLabel {...props} />
</div>
);
}
function SortableSelect(props) {
const { distance, value, onSortEnd, isMulti } = props;
if (!isMulti) {
return <AsyncSelect {...props} />;
}
const keys = Array.isArray(value) ? value.map(({ data }) => data.id) : [];
const activationConstraint = { distance };
const sensors = useSensors(
useSensor(MouseSensor, { activationConstraint }),
useSensor(TouchSensor, { activationConstraint }),
);
function handleSortEnd({ active, over }) {
onSortEnd({
oldIndex: keys.indexOf(active.id),
newIndex: keys.indexOf(over.id),
});
}
return (
<DndContext
modifiers={[restrictToParentElement]}
collisionDetection={closestCenter}
sensors={sensors}
onDragEnd={handleSortEnd}
>
<SortableContext items={keys} strategy={horizontalListSortingStrategy}>
<AsyncSelect {...props} />
</SortableContext>
</DndContext>
);
}
function Option({ index, style, data }) {
return <div style={style}>{data.options[index]}</div>;
}
function MenuList(props) {
if (props.isLoading || props.options.length <= 0 || !Array.isArray(props.children)) {
return props.children;
}
const rows = props.children;
const itemSize = 30;
return (
<FixedSizeList
style={{ width: '100%' }}
width={300}
height={Math.min(300, rows.length * itemSize + itemSize / 3)}
itemCount={rows.length}
itemSize={itemSize}
itemData={{ options: rows }}
>
{Option}
</FixedSizeList>
);
}
function optionToString(option) {
return option && option.value ? option.value : '';
}
function convertToOption(raw) {
if (typeof raw === 'string') {
return { label: raw, value: raw };
}
return Map.isMap(raw) ? raw.toJS() : raw;
}
function getSelectedOptions(value) {
const selectedOptions = List.isList(value) ? value.toJS() : value;
if (!selectedOptions || !Array.isArray(selectedOptions)) {
return null;
}
return selectedOptions;
}
function uniqOptions(initial, current) {
return uniqBy(initial.concat(current), o => o.value);
}
function getFieldArray(field) {
if (!field) {
return [];
}
return List.isList(field) ? field.toJS() : [field];
}
function getSelectedValue({ value, options, isMultiple }) {
if (isMultiple) {
const selectedOptions = getSelectedOptions(value);
if (selectedOptions === null) {
return null;
}
const selected = selectedOptions
.map(i => options.find(o => o.value === (i.value || i)))
.filter(Boolean)
.map(convertToSortableOption);
return selected;
} else {
return find(options, ['value', value]) || null;
}
}
function convertToSortableOption(raw) {
const option = convertToOption(raw);
return {
...option,
data: {
...option.data,
id: uuid(),
},
};
}
export default class RelationControl extends React.Component {
mounted = false;
state = {
initialOptions: [],
};
static propTypes = {
onChange: PropTypes.func.isRequired,
forID: PropTypes.string.isRequired,
value: PropTypes.node,
field: ImmutablePropTypes.map,
query: PropTypes.func.isRequired,
queryHits: PropTypes.array,
classNameWrapper: PropTypes.string.isRequired,
setActiveStyle: PropTypes.func.isRequired,
setInactiveStyle: PropTypes.func.isRequired,
locale: PropTypes.string,
};
isValid = () => {
const { field, value, t } = this.props;
const min = field.get('min');
const max = field.get('max');
if (!this.isMultiple()) {
return { error: false };
}
const error = validations.validateMinMax(
t,
field.get('label', field.get('name')),
value,
min,
max,
);
return error ? { error } : { error: false };
};
shouldComponentUpdate(nextProps) {
return (
this.props.value !== nextProps.value ||
this.props.hasActiveStyle !== nextProps.hasActiveStyle ||
this.props.queryHits !== nextProps.queryHits
);
}
async componentDidMount() {
this.mounted = true;
// if the field has a previous value perform an initial search based on the value field
// this is required since each search is limited by optionsLength so the selected value
// might not show up on the search
const { forID, field, value, query, onChange } = this.props;
const collection = field.get('collection');
const file = field.get('file');
const initialSearchValues = value && (this.isMultiple() ? getSelectedOptions(value) : [value]);
if (initialSearchValues && initialSearchValues.length > 0) {
const metadata = {};
const searchFieldsArray = getFieldArray(field.get('search_fields'));
const { payload } = await query(forID, collection, searchFieldsArray, '', file);
const hits = payload.hits || [];
const options = this.parseHitOptions(hits);
const initialOptions = initialSearchValues
.map(v => {
const selectedOption = options.find(o => o.value === v);
metadata[v] = selectedOption?.data;
return selectedOption;
})
.filter(Boolean);
const filteredValue = initialOptions.map(option => option.value);
this.mounted && this.setState({ initialOptions });
//set metadata
this.mounted &&
onChange(
filteredValue.length === 1 && !this.isMultiple()
? filteredValue[0]
: fromJS(filteredValue),
{
[field.get('name')]: {
[field.get('collection')]: metadata,
},
},
);
}
}
componentWillUnmount() {
this.mounted = false;
}
onSortEnd =
options =>
({ oldIndex, newIndex }) => {
const { onChange, field } = this.props;
const value = options.map(optionToString);
const newValue = arrayMove(value, oldIndex, newIndex);
const metadata =
(!isEmpty(options) && {
[field.get('name')]: {
[field.get('collection')]: {
[last(newValue)]: last(options).data,
},
},
}) ||
{};
onChange(fromJS(newValue), metadata);
};
handleChange = selectedOption => {
const { onChange, field } = this.props;
if (this.isMultiple()) {
const options = selectedOption;
this.setState({ initialOptions: options.filter(Boolean) });
const value = options.map(optionToString);
const metadata =
(!isEmpty(options) && {
[field.get('name')]: {
[field.get('collection')]: {
[last(value)]: last(options).data,
},
},
}) ||
{};
onChange(fromJS(value), metadata);
} else {
this.setState({ initialOptions: [selectedOption].filter(Boolean) });
const value = optionToString(selectedOption);
const metadata = selectedOption && {
[field.get('name')]: {
[field.get('collection')]: { [value]: selectedOption.data },
},
};
onChange(value, metadata);
}
};
parseNestedFields = (hit, field) => {
const { locale } = this.props;
const hitData =
locale != null && hit.i18n != null && hit.i18n[locale] != null
? hit.i18n[locale].data
: hit.data;
const templateVars = stringTemplate.extractTemplateVars(field);
// return non template fields as is
if (templateVars.length <= 0) {
return get(hitData, field);
}
const data = stringTemplate.addFileTemplateFields(hit.path, fromJS(hitData));
const value = stringTemplate.compileStringTemplate(field, null, hit.slug, data);
return value;
};
isMultiple() {
return this.props.field.get('multiple', false);
}
parseHitOptions = hits => {
const { field } = this.props;
const valueField = field.get('value_field');
const displayField = field.get('display_fields') || List([field.get('value_field')]);
const filters = getFieldArray(field.get('filters'));
const options = hits.reduce((acc, hit) => {
if (
filters.every(filter => {
// check if the value for the (nested) filter field is in the filter values
const fieldKeys = filter.field.split('.');
let value = hit.data;
for (let i = 0; i < fieldKeys.length; i++) {
if (Object.prototype.hasOwnProperty.call(value, fieldKeys[i])) {
value = value[fieldKeys[i]];
} else {
return false;
}
}
return filter.values.includes(value);
})
) {
const valuesPaths = stringTemplate.expandPath({ data: hit.data, path: valueField });
for (let i = 0; i < valuesPaths.length; i++) {
const label = displayField
.toJS()
.map(key => {
const displayPaths = stringTemplate.expandPath({ data: hit.data, path: key });
return this.parseNestedFields(hit, displayPaths[i] || displayPaths[0]);
})
.join(' ');
const value = this.parseNestedFields(hit, valuesPaths[i]);
acc.push({ data: hit.data, value, label });
}
}
return acc;
}, []);
return options;
};
loadOptions = debounce((term, callback) => {
const { field, query, forID } = this.props;
const collection = field.get('collection');
const optionsLength = field.get('options_length') || 20;
const searchFieldsArray = getFieldArray(field.get('search_fields'));
const file = field.get('file');
query(forID, collection, searchFieldsArray, term, file).then(({ payload }) => {
const hits = payload.hits || [];
const options = this.parseHitOptions(hits);
const uniq = uniqOptions(this.state.initialOptions, options).slice(0, optionsLength);
callback(uniq);
});
}, 500);
render() {
const { value, field, forID, classNameWrapper, setActiveStyle, setInactiveStyle, queryHits } =
this.props;
const isMultiple = this.isMultiple();
const isClearable = !field.get('required', true) || isMultiple;
const queryOptions = this.parseHitOptions(queryHits);
const options = uniqOptions(this.state.initialOptions, queryOptions);
const selectedValue = getSelectedValue({
options,
value,
isMultiple,
});
return (
<SortableSelect
useDragHandle
onSortEnd={this.onSortEnd(selectedValue)}
distance={4}
// react-select props:
components={{ MenuList, MultiValue, MultiValueLabel }}
value={selectedValue}
inputId={forID}
cacheOptions
defaultOptions
loadOptions={this.loadOptions}
onChange={this.handleChange}
className={classNameWrapper}
onFocus={setActiveStyle}
onBlur={setInactiveStyle}
styles={reactSelectStyles}
isMulti={isMultiple}
isClearable={isClearable}
placeholder=""
/>
);
}
}