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// Licensed under BSD 3-Clause - see LICENSE.txt or git.io/sfdc-license
import React, { useEffect, useMemo, useState } from 'react';
import classNames from 'classnames';
import PropTypes from 'prop-types';
const PT = PropTypes;
const TabContent = (props) => {
const { current, flavor, id, children, ...rest } = props;
const classNameComputed = classNames(
classNames(`slds-tabs_${flavor}__content`, {
'slds-show': current,
'slds-hide': !current
})
);
return (
<div
{...rest}
className={classNameComputed}
role="tabpanel"
aria-labelledby={`${id}__item`}
>
{children}
</div>
);
};
TabContent.propTypes = {
current: PT.bool,
flavor: PT.oneOf(['scoped', 'default', 'path'])
};
TabContent.defaultProps = { current: true };
const TabItem = (props) => {
const {
className,
id,
current,
flavor,
content,
leftIcon,
rightIcon,
title,
onSelect,
...rest
} = props;
const classNameComputed = classNames(
className,
classNames(`slds-tabs_${flavor}__item`, {
'slds-is-active': current
})
);
const tabIndex = current ? 0 : -1;
const handleActivate = (e) => {
if (e) e.preventDefault();
if (onSelect) onSelect();
};
const renderCustom = (ti) =>
React.cloneElement(content, {
tabIndex: ti,
className: `slds-tabs_${flavor}__link`,
'aria-selected': current,
'aria-controls': props['aria-controls'] || id,
onClick: handleActivate,
onKeyDown: (e) => {
if (e.key === 'Enter' || e.key === ' ') handleActivate(e);
}
});
const renderDefault = (ti) => (
<a
className={`slds-tabs_${flavor}__link`}
href="#"
role="tab"
tabIndex={ti}
aria-selected={current}
aria-controls={id}
id={`${id}__item`}
onClick={handleActivate}
onKeyDown={(e) => {
if (e.key === 'Enter' || e.key === ' ') handleActivate(e);
}}
>
{leftIcon && <span className="slds-tabs__left-icon">{leftIcon}</span>}
{title}
{rightIcon && (
<span className="slds-tabs__right-icon">{rightIcon}</span>
)}
</a>
);
return (
<li className={classNameComputed} {...rest} role="presentation">
{content ? renderCustom(tabIndex) : renderDefault(tabIndex)}
</li>
);
};
TabItem.propTypes = {
title: PT.string,
content: PT.node,
flavor: PT.oneOf(['scoped', 'default', 'path'])
};
const Tabs = (props) => {
const {
flavor,
panel,
size,
isCard,
selectedIndex,
withHeader,
showHeader,
children,
onTabChange,
...rest
} = props;
const [currentTab, setCurrentTab] = useState(selectedIndex);
// Keep internal state in sync if selectedIndex prop changes
useEffect(() => {
setCurrentTab(selectedIndex);
}, [selectedIndex]);
const composedClassName = classNames(`slds-tabs_${flavor}`, {
'slds-tabs_medium': size === 'medium',
'slds-tabs_large': size === 'large',
'slds-tabs_card': isCard
});
const tabs = useMemo(
() =>
React.Children.map(children, (c, i) =>
React.cloneElement(c, {
current: currentTab === i,
flavor,
onSelect: () => {
setCurrentTab(i);
if (onTabChange) onTabChange(i);
}
})
),
[children, currentTab, flavor]
);
const currentPanel = useMemo(
() =>
React.Children.map(children, (c, i) => {
if (c.props.children?.type === TabContent) {
return React.cloneElement(c.props.children, {
id: c.props.id,
current: currentTab === i,
flavor
});
}
return (
<TabContent current={currentTab === i} id={c.props.id} flavor={flavor}>
{c.props.children}
</TabContent>
);
}),
[children, currentTab, flavor]
);
return (
<div {...rest} className={composedClassName}>
{withHeader
? showHeader
? (
<div role="heading" aria-level="2" className="slds-tabs_default__header">
This is a sample header for tabs
</div>
)
: (
<div
role="heading"
aria-level="2"
className="slds-tabs_default__header slds-assistive-text"
>
This is a sample invisible header for tabs
</div>
)
: null}
<ul className={`slds-tabs_${flavor}__nav`} role="tablist">
{tabs}
</ul>
{panel || currentPanel}
</div>
);
};
Tabs.propTypes = {
selectedIndex: PT.number,
flavor: PT.oneOf(['scoped', 'default', 'path']),
size: PT.oneOf(['medium', 'large']),
isCard: PT.bool,
showHeader: PT.bool,
withHeader: PT.bool
};
Tabs.defaultProps = {
selectedIndex: 0,
flavor: 'default',
withHeader: false,
showHeader: false
};
export {TabItem};
export default Tabs;
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