chuckya/app/javascript/mastodon/features/compose/components/privacy_dropdown_menu.jsx

128 lines
3.9 KiB
JavaScript

import PropTypes from 'prop-types';
import { useCallback, useEffect, useRef, useState } from 'react';
import classNames from 'classnames';
import { supportsPassiveEvents } from 'detect-passive-events';
import InfoIcon from '@/material-icons/400-24px/info.svg?react';
import { Icon } from 'mastodon/components/icon';
const listenerOptions = supportsPassiveEvents ? { passive: true, capture: true } : true;
export const PrivacyDropdownMenu = ({ style, items, value, onClose, onChange }) => {
const nodeRef = useRef(null);
const focusedItemRef = useRef(null);
const [currentValue, setCurrentValue] = useState(value);
const handleDocumentClick = useCallback((e) => {
if (nodeRef.current && !nodeRef.current.contains(e.target)) {
onClose();
e.stopPropagation();
}
}, [nodeRef, onClose]);
const handleClick = useCallback((e) => {
const value = e.currentTarget.getAttribute('data-index');
e.preventDefault();
onClose();
onChange(value);
}, [onClose, onChange]);
const handleKeyDown = useCallback((e) => {
const value = e.currentTarget.getAttribute('data-index');
const index = items.findIndex(item => (item.value === value));
let element = null;
switch (e.key) {
case 'Escape':
onClose();
break;
case ' ':
case 'Enter':
handleClick(e);
break;
case 'ArrowDown':
element = nodeRef.current.childNodes[index + 1] || nodeRef.current.firstChild;
break;
case 'ArrowUp':
element = nodeRef.current.childNodes[index - 1] || nodeRef.current.lastChild;
break;
case 'Tab':
if (e.shiftKey) {
element = nodeRef.current.childNodes[index + 1] || nodeRef.current.firstChild;
} else {
element = nodeRef.current.childNodes[index - 1] || nodeRef.current.lastChild;
}
break;
case 'Home':
element = nodeRef.current.firstChild;
break;
case 'End':
element = nodeRef.current.lastChild;
break;
}
if (element) {
element.focus();
setCurrentValue(element.getAttribute('data-index'));
e.preventDefault();
e.stopPropagation();
}
}, [nodeRef, items, onClose, handleClick, setCurrentValue]);
useEffect(() => {
document.addEventListener('click', handleDocumentClick, { capture: true });
document.addEventListener('touchend', handleDocumentClick, listenerOptions);
focusedItemRef.current?.focus({ preventScroll: true });
return () => {
document.removeEventListener('click', handleDocumentClick, { capture: true });
document.removeEventListener('touchend', handleDocumentClick, listenerOptions);
};
}, [handleDocumentClick]);
return (
<ul style={{ ...style }} role='listbox' ref={nodeRef}>
{items.map(item => (
<li
role='option'
tabIndex={0}
key={item.value}
data-index={item.value}
onKeyDown={handleKeyDown}
onClick={handleClick}
className={classNames('privacy-dropdown__option', { active: item.value === currentValue })}
aria-selected={item.value === currentValue}
ref={item.value === currentValue ? focusedItemRef : null}
>
<div className='privacy-dropdown__option__icon'>
<Icon id={item.icon} icon={item.iconComponent} />
</div>
<div className='privacy-dropdown__option__content'>
<strong>{item.text}</strong>
{item.meta}
</div>
{item.extra && (
<div className='privacy-dropdown__option__additional' title={item.extra}>
<Icon id='info-circle' icon={InfoIcon} />
</div>
)}
</li>
))}
</ul>
);
};
PrivacyDropdownMenu.propTypes = {
style: PropTypes.object,
items: PropTypes.array.isRequired,
value: PropTypes.string.isRequired,
onClose: PropTypes.func.isRequired,
onChange: PropTypes.func.isRequired,
};