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import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { observer } from 'mobx-react';
import { Field } from 'mobx-react-form';
import classnames from 'classnames';
@observer
class Select extends Component {
static propTypes = {
field: PropTypes.instanceOf(Field).isRequired,
className: PropTypes.string,
showLabel: PropTypes.bool,
disabled: PropTypes.bool,
multiple: PropTypes.bool,
};
static defaultProps = {
className: null,
showLabel: true,
disabled: false,
multiple: false,
};
constructor(props) {
super(props);
this.element = React.createRef();
}
multipleChange() {
const element = this.element.current;
const result = [];
const options = element && element.options;
for (const option of options) {
if (option.selected) {
result.push(option.value || option.text);
}
}
const { field } = this.props;
field.value = result;
}
render() {
const { field, className, showLabel, disabled, multiple } = this.props;
let selected = field.value;
if (multiple) {
if (typeof field.value === 'string' && field.value.substr(0, 1) === '[') {
// Value is JSON encoded
selected = JSON.parse(field.value);
} else if (typeof field.value === 'object') {
selected = field.value;
} else {
selected = [field.value];
}
}
return (
<div
className={classnames({
'franz-form__field': true,
'has-error': field.error,
'is-disabled': disabled,
[`${className}`]: className,
})}
>
{field.label && showLabel && (
<label className="franz-form__label" htmlFor={field.name}>
{field.label}
</label>
)}
<select
onChange={multiple ? e => this.multipleChange(e) : field.onChange}
id={field.id}
defaultValue={selected}
className="franz-form__select"
disabled={field.disabled || disabled}
multiple={multiple}
ref={this.element}
>
{field.options.map(type => (
<option
key={type.value}
value={type.value}
disabled={type.disabled}
>
{type.label}
</option>
))}
</select>
{field.error && <div className="franz-form__error">{field.error}</div>}
</div>
);
}
}
export default Select;
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