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ArrayField.jsx
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ArrayField.jsx
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import PropTypes from 'prop-types';
import React from 'react';
import _ from 'lodash/fp';
import classNames from 'classnames';
import Scroll from 'react-scroll';
import { scrollToFirstError } from '../../../../platform/utilities/ui';
import { setArrayRecordTouched } from '../helpers';
import {
toIdSchema,
getDefaultFormState,
deepEquals
} from '@department-of-veterans-affairs/react-jsonschema-form/lib/utils';
import { errorSchemaIsValid } from '../validation';
const Element = Scroll.Element;
const scroller = Scroll.scroller;
/* Non-review growable table (array) field */
export default class ArrayField extends React.Component {
constructor(props) {
super(props);
// Throw an error if there’s no viewField (should be React component)
if (typeof this.props.uiSchema['ui:options'].viewField !== 'function') {
throw new Error(`No viewField found in uiSchema for ArrayField ${this.props.idSchema.$id}.`);
}
/*
* We’re keeping the editing state in local state because it’s easier to manage and
* doesn’t need to persist from page to page
*/
this.state = {
editing: props.formData ? props.formData.map(() => false) : [true]
};
this.onItemChange = this.onItemChange.bind(this);
this.handleAdd = this.handleAdd.bind(this);
this.handleEdit = this.handleEdit.bind(this);
this.handleUpdate = this.handleUpdate.bind(this);
this.handleRemove = this.handleRemove.bind(this);
this.scrollToTop = this.scrollToTop.bind(this);
this.scrollToRow = this.scrollToRow.bind(this);
}
// This fills in an empty item in the array if it has minItems set
// so that schema validation runs against the fields in the first item
// in the array. This shouldn’t be necessary, but there’s a fix in rjsf
// that has not been released yet
componentDidMount() {
const { schema, formData = [], registry } = this.props;
if (schema.minItems > 0 && formData.length === 0) {
this.props.onChange(Array(schema.minItems).fill(
getDefaultFormState(schema.additionalItems, undefined, registry.definitions)
));
}
}
shouldComponentUpdate(nextProps, nextState) {
return !deepEquals(this.props, nextProps) || nextState !== this.state;
}
onItemChange(indexToChange, value) {
const newItems = _.set(indexToChange, value, this.props.formData || []);
this.props.onChange(newItems);
}
getItemSchema(index) {
const schema = this.props.schema;
if (schema.items.length > index) {
return schema.items[index];
}
return schema.additionalItems;
}
scrollToTop() {
setTimeout(() => {
scroller.scrollTo(`topOfTable_${this.props.idSchema.$id}`, window.VetsGov.scroll || {
duration: 500,
delay: 0,
smooth: true,
offset: -60
});
}, 100);
}
scrollToRow(id) {
setTimeout(() => {
scroller.scrollTo(`table_${id}`, window.VetsGov.scroll || {
duration: 500,
delay: 0,
smooth: true,
offset: 0
});
}, 100);
}
/*
* Clicking edit on an item that’s not last and so is in view mode
*/
handleEdit(index, status = true) {
this.setState(_.set(['editing', index], status, this.state), () => {
this.scrollToRow(`${this.props.idSchema.$id}_${index}`);
});
}
/*
* Clicking Update on an item that’s not last and is in edit mode
*/
handleUpdate(index) {
if (errorSchemaIsValid(this.props.errorSchema[index])) {
this.setState(_.set(['editing', index], false, this.state), () => {
this.scrollToTop();
});
} else {
// Set all the fields for this item as touched, so we show errors
const touched = setArrayRecordTouched(this.props.idSchema.$id, index);
this.props.formContext.setTouched(touched, () => {
scrollToFirstError();
});
}
}
/*
* Clicking Add Another
*/
handleAdd() {
const lastIndex = this.props.formData.length - 1;
if (errorSchemaIsValid(this.props.errorSchema[lastIndex])) {
// When we add another, we want to change the editing state of the currently
// last item, but not ones above it
const newEditing = this.state.editing.map((val, index) => {
return (index + 1) === this.state.editing.length
? false
: val;
});
const editingState = this.props.uiSchema['ui:options'].reviewMode;
const newState = _.assign(this.state, {
editing: newEditing.concat(!!editingState)
});
this.setState(newState, () => {
const newFormData = this.props.formData.concat(getDefaultFormState(this.props.schema.additionalItems, undefined, this.props.registry.definitions) || {});
this.props.onChange(newFormData);
this.scrollToRow(`${this.props.idSchema.$id}_${lastIndex + 1}`);
});
} else {
const touched = setArrayRecordTouched(this.props.idSchema.$id, lastIndex);
this.props.formContext.setTouched(touched, () => {
scrollToFirstError();
});
}
}
/*
* Clicking Remove on an item in edit mode
*/
handleRemove(indexToRemove) {
const newItems = this.props.formData.filter((val, index) => index !== indexToRemove);
const newState = _.assign(this.state, {
editing: this.state.editing.filter((val, index) => index !== indexToRemove),
});
this.props.onChange(newItems);
this.setState(newState, () => {
this.scrollToTop();
});
}
render() {
const {
uiSchema,
errorSchema,
idSchema,
formData,
disabled,
readonly,
registry,
formContext,
onBlur,
schema
} = this.props;
const definitions = registry.definitions;
const { TitleField, SchemaField } = registry.fields;
const uiOptions = uiSchema['ui:options'] || {};
const ViewField = uiOptions.viewField;
const title = uiSchema['ui:title'] || schema.title;
const hideTitle = !!uiOptions.title;
const description = uiSchema['ui:description'];
const textDescription = typeof description === 'string' ? description : null;
const DescriptionField = typeof description === 'function'
? uiSchema['ui:description']
: null;
const isReviewMode = uiSchema['ui:options'].reviewMode;
const hasTitleOrDescription = (!!title && !hideTitle) || !!description;
// if we have form data, use that, otherwise use an array with a single default object
const items = (formData && formData.length)
? formData
: [getDefaultFormState(schema, undefined, registry.definitions)];
const containerClassNames = classNames({
'schemaform-field-container': true,
'schemaform-block': hasTitleOrDescription
});
return (
<div className={containerClassNames}>
{hasTitleOrDescription && <div className="schemaform-block-header">
{title && !hideTitle
? <TitleField
id={`${idSchema.$id}__title`}
title={title}
formContext={formContext}/> : null}
{textDescription && <p>{textDescription}</p>}
{DescriptionField && <DescriptionField options={uiSchema['ui:options']}/>}
{!textDescription && !DescriptionField && description}
</div>}
<div className="va-growable">
<Element name={`topOfTable_${idSchema.$id}`}/>
{items.map((item, index) => {
// This is largely copied from the default ArrayField
const itemSchema = this.getItemSchema(index);
const itemIdPrefix = `${idSchema.$id}_${index}`;
const itemIdSchema = toIdSchema(itemSchema, itemIdPrefix, definitions);
const isLast = items.length === (index + 1);
const isEditing = this.state.editing[index];
const notLastOrMultipleRows = !isLast || items.length > 1;
if (isReviewMode ? isEditing : isLast || isEditing) {
return (
<div key={index} className={notLastOrMultipleRows ? 'va-growable-background' : null}>
<Element name={`table_${itemIdPrefix}`}/>
<div className="row small-collapse">
<div className="small-12 columns va-growable-expanded">
{isLast && items.length > 1 && uiSchema['ui:options'].itemName
? <h5>New {uiSchema['ui:options'].itemName}</h5>
: null}
<div className="input-section">
<SchemaField key={index}
schema={itemSchema}
uiSchema={uiSchema.items}
errorSchema={errorSchema ? errorSchema[index] : undefined}
idSchema={itemIdSchema}
formData={item}
onChange={(value) => this.onItemChange(index, value)}
onBlur={onBlur}
registry={this.props.registry}
required={false}
disabled={disabled}
readonly={readonly}/>
</div>
{notLastOrMultipleRows &&
<div className="row small-collapse">
<div className="small-6 left columns">
{!isLast && <button className="float-left" onClick={() => this.handleUpdate(index)}>Update</button>}
</div>
<div className="small-6 right columns">
<button className="usa-button-secondary float-right" type="button" onClick={() => this.handleRemove(index)}>Remove</button>
</div>
</div>}
</div>
</div>
</div>
);
}
return (
<div key={index} className="va-growable-background">
<div className="row small-collapse">
<div className="small-9 columns">
<ViewField
formData={item}
onEdit={() => this.handleEdit(index)}/>
</div>
<div className="small-3 columns">
<button className="usa-button-secondary float-right" onClick={() => this.handleEdit(index)}>Edit</button>
</div>
</div>
</div>
);
})}
<button
type="button"
className={classNames(
'usa-button-secondary',
'va-growable-add-btn',
{
'usa-button-disabled': !this.props.formData
}
)}
disabled={!this.props.formData}
onClick={this.handleAdd}>
Add Another {uiOptions.itemName}
</button>
</div>
</div>
);
}
}
ArrayField.propTypes = {
schema: PropTypes.object.isRequired,
uiSchema: PropTypes.object,
errorSchema: PropTypes.object,
requiredSchema: PropTypes.object,
idSchema: PropTypes.object,
onChange: PropTypes.func.isRequired,
onBlur: PropTypes.func,
formData: PropTypes.array,
disabled: PropTypes.bool,
readonly: PropTypes.bool,
registry: PropTypes.shape({
widgets: PropTypes.objectOf(PropTypes.oneOfType([
PropTypes.func,
PropTypes.object,
])).isRequired,
fields: PropTypes.objectOf(PropTypes.func).isRequired,
definitions: PropTypes.object.isRequired,
formContext: PropTypes.object.isRequired,
})
};