113 lines
2.5 KiB
Plaintext
113 lines
2.5 KiB
Plaintext
import React from 'react';
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import PropTypes from 'prop-types';
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import classNames from 'classnames';
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import withStyles from '../styles/withStyles';
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export const styles = theme => ({
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root: {
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color: theme.palette.text.secondary,
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fontFamily: theme.typography.fontFamily,
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fontSize: theme.typography.pxToRem(12),
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textAlign: 'left',
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marginTop: theme.spacing.unit,
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lineHeight: '1em',
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minHeight: '1em',
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margin: 0,
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},
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dense: {
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marginTop: theme.spacing.unit / 2,
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},
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error: {
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color: theme.palette.error.main,
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},
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disabled: {
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color: theme.palette.text.disabled,
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},
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});
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function FormHelperText(props, context) {
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const {
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classes,
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className: classNameProp,
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disabled: disabledProp,
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error: errorProp,
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margin: marginProp,
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component: Component,
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...other
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} = props;
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const { muiFormControl } = context;
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let disabled = disabledProp;
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let error = errorProp;
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let margin = marginProp;
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if (muiFormControl) {
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if (typeof disabled === 'undefined') {
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disabled = muiFormControl.disabled;
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}
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if (typeof error === 'undefined') {
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error = muiFormControl.error;
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}
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if (typeof margin === 'undefined') {
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margin = muiFormControl.margin;
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}
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}
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const className = classNames(
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classes.root,
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{
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[classes.disabled]: disabled,
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[classes.error]: error,
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[classes.dense]: margin === 'dense',
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},
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classNameProp,
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);
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return <Component className={className} {...other} />;
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}
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FormHelperText.propTypes = {
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/**
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* The content of the component.
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*/
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children: PropTypes.node,
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/**
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* Useful to extend the style applied to components.
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*/
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classes: PropTypes.object.isRequired,
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/**
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* @ignore
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*/
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className: PropTypes.string,
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/**
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* The component used for the root node.
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* Either a string to use a DOM element or a component.
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*/
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component: PropTypes.oneOfType([PropTypes.string, PropTypes.func]),
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/**
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* If `true`, the helper text should be displayed in a disabled state.
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*/
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disabled: PropTypes.bool,
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/**
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* If `true`, helper text should be displayed in an error state.
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*/
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error: PropTypes.bool,
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/**
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* If `dense`, will adjust vertical spacing. This is normally obtained via context from
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* FormControl.
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*/
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margin: PropTypes.oneOf(['dense']),
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};
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FormHelperText.defaultProps = {
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component: 'p',
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};
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FormHelperText.contextTypes = {
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muiFormControl: PropTypes.object,
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};
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export default withStyles(styles, { name: 'MuiFormHelperText' })(FormHelperText);
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