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import React from 'react';
import PropTypes from 'react-peek/prop-types';
import { lucidClassNames } from '../../util/style-helpers';
import {
findTypes,
omitProps,
StandardProps,
} from '../../util/component-types';
import { buildModernHybridComponent } from '../../util/state-management';
import ChevronIcon from '../Icon/ChevronIcon/ChevronIcon';
import Collapsible from '../Collapsible/Collapsible';
import * as reducers from './Expander.reducers';
import Button from '../Button/Button';
const cx = lucidClassNames.bind('&-Expander');
const { any, bool, func, node, object, oneOf, string } = PropTypes;
interface IExpanderLabelProps extends StandardProps {
description?: string;
}
interface IExpanderAdditionalLabelProps extends StandardProps {
description?: string;
}
const Label = (_props: IExpanderLabelProps): null => null;
Label.displayName = 'Expander.Label';
Label.peek = {
description: `
Renders a \`<span>\` to be shown next to the expander icon.
`,
};
Label.propName = 'Label';
Label.propTypes = {
children: node`
Used to identify the purpose of this switch to the user -- can be any
renderable content.
`,
};
const AdditionalLabelContent = (_props: IExpanderAdditionalLabelProps): null =>
null;
AdditionalLabelContent.displayName = 'Expander.AdditionalLabelContent';
AdditionalLabelContent.peek = {
description: `
Renders a \`<span>\` to be shown next to the expander label.
`,
};
AdditionalLabelContent.propName = 'AdditionalLabelContent';
AdditionalLabelContent.propTypes = {
children: node`
Used to display additional information or/and actions next to expander label.
`,
};
export interface IExpanderProps
extends StandardProps,
React.DetailedHTMLProps<
React.HTMLAttributes<HTMLDivElement>,
HTMLDivElement
> {
/**
* Indicates that the component is in the "expanded" state when true and in
* the "unexpanded" state when false.
* */
isExpanded: boolean;
/**
* Called when the user clicks on the component's header.
* */
onToggle: (
isExpanded: boolean,
{ event, props }: { event: React.MouseEvent; props: IExpanderProps }
) => void;
/** Passed through to the root element. */
style?: React.CSSProperties;
/** Child element whose children represents content to be shown next to the
* expander icon.
* */
Label?: React.ReactNode;
/** Child element whose children respresent content to be shown inside
* Expander.Label and to the right of it
* */
AdditionalLabelContent?: React.ReactNode;
/** Renders different variants of Expander. 'simple' is default.
* 'highlighted' is more prominant.
* */
kind: 'simple' | 'highlighted';
}
const defaultProps = {
isExpanded: false,
onToggle: _.noop,
kind: 'simple' as const,
};
export interface IExpanderState {
isExpanded: boolean;
}
class Expander extends React.Component<IExpanderProps, IExpanderState> {
static displayName = 'Expander';
static propTypes = {
children: node`
Expandable content.
`,
className: string`
Appended to the component-specific class names set on the root element.
`,
isExpanded: bool`
Indicates that the component is in the "expanded" state when true and in
the "unexpanded" state when false.
`,
onToggle: func`
Called when the user clicks on the component's header. Signature:
\`(isExpanded, { event, props }) => {}\`
`,
style: object`
Passed through to the root element.
`,
Label: any`
Child element whose children represents content to be shown next to the
expander icon.
`,
AdditionalLabelContent: node`
Child element whose children respresent content to be shown inside
Expander.Label and to the right of it
`,
kind: oneOf(['simple', 'highlighted'])`
Renders different variants of Expander. 'simple' is default.
'highlighted' is more prominant.
`,
};
static defaultProps = defaultProps;
static reducers = reducers;
static Label = Label;
static AdditionalLabelContent = AdditionalLabelContent;
static peek = {
description: `
This is a container that provides a toggle that controls when the
content is shown.
`,
categories: ['layout'],
madeFrom: ['ChevronIcon'],
};
handleToggle = (event: React.MouseEvent): void => {
this.props.onToggle(!this.props.isExpanded, {
event,
props: this.props,
});
};
render(): React.ReactNode {
const {
children,
className,
isExpanded,
style,
kind,
...passThroughs
} = this.props;
const labelChildProp = _.first(
_.map(findTypes(this.props, Expander.Label), 'props')
);
const additionalLabelContentChildProp = _.first(
_.map(findTypes(this.props, Expander.AdditionalLabelContent), 'props')
);
return (
<div
{...omitProps(passThroughs, undefined, _.keys(Expander.propTypes))}
className={cx(
'&',
{
'&-is-expanded': isExpanded,
'&-kind-highlighted': kind === 'highlighted',
},
className
)}
style={style}
>
<header className={cx('&-header')}>
<div className={cx('&-header-toggle')} onClick={this.handleToggle}>
<Button
className={cx('&-icon')}
kind='invisible'
hasOnlyIcon={true}
>
<ChevronIcon direction={isExpanded ? 'up' : 'down'} />
</Button>
{labelChildProp && (
<span className={cx('&-text')}>{labelChildProp.children}</span>
)}
</div>
{additionalLabelContentChildProp && (
<div className={cx('&-additional-content')}>
{additionalLabelContentChildProp.children}
</div>
)}
</header>
<Collapsible
isExpanded={isExpanded}
rootType='section'
className={cx('&-content')}
>
{children}
</Collapsible>
</div>
);
}
}
export default buildModernHybridComponent<
IExpanderProps,
IExpanderState,
typeof Expander
>(Expander, { reducers });
export { Expander as ExpanderDumb };
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