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YuruToot/app/javascript/mastodon/components/hover_card_controller.tsx
Eugen Rochko e89317d4c1
Add hover cards in web UI (#30754)
Co-authored-by: Renaud Chaput <renchap@gmail.com>
2024-06-26 19:33:38 +00:00

118 lines
3.3 KiB
TypeScript

import { useEffect, useRef, useState, useCallback } from 'react';
import { useLocation } from 'react-router-dom';
import Overlay from 'react-overlays/Overlay';
import type {
OffsetValue,
UsePopperOptions,
} from 'react-overlays/esm/usePopper';
import { useTimeout } from 'mastodon/../hooks/useTimeout';
import { HoverCardAccount } from 'mastodon/components/hover_card_account';
const offset = [-12, 4] as OffsetValue;
const enterDelay = 650;
const leaveDelay = 250;
const popperConfig = { strategy: 'fixed' } as UsePopperOptions;
const isHoverCardAnchor = (element: HTMLElement) =>
element.matches('[data-hover-card-account]');
export const HoverCardController: React.FC = () => {
const [open, setOpen] = useState(false);
const [accountId, setAccountId] = useState<string | undefined>();
const [anchor, setAnchor] = useState<HTMLElement | null>(null);
const cardRef = useRef<HTMLDivElement>(null);
const [setLeaveTimeout, cancelLeaveTimeout] = useTimeout();
const [setEnterTimeout, cancelEnterTimeout] = useTimeout();
const location = useLocation();
const handleAnchorMouseEnter = useCallback(
(e: MouseEvent) => {
const { target } = e;
if (target instanceof HTMLElement && isHoverCardAnchor(target)) {
cancelLeaveTimeout();
setEnterTimeout(() => {
target.setAttribute('aria-describedby', 'hover-card');
setAnchor(target);
setOpen(true);
setAccountId(
target.getAttribute('data-hover-card-account') ?? undefined,
);
}, enterDelay);
}
if (target === cardRef.current?.parentNode) {
cancelLeaveTimeout();
}
},
[cancelLeaveTimeout, setEnterTimeout, setOpen, setAccountId, setAnchor],
);
const handleAnchorMouseLeave = useCallback(
(e: MouseEvent) => {
if (e.target === anchor || e.target === cardRef.current?.parentNode) {
cancelEnterTimeout();
setLeaveTimeout(() => {
anchor?.removeAttribute('aria-describedby');
setOpen(false);
setAnchor(null);
}, leaveDelay);
}
},
[cancelEnterTimeout, setLeaveTimeout, setOpen, setAnchor, anchor],
);
const handleClose = useCallback(() => {
cancelEnterTimeout();
cancelLeaveTimeout();
setOpen(false);
setAnchor(null);
}, [cancelEnterTimeout, cancelLeaveTimeout, setOpen, setAnchor]);
useEffect(() => {
handleClose();
}, [handleClose, location]);
useEffect(() => {
document.body.addEventListener('mouseenter', handleAnchorMouseEnter, {
passive: true,
capture: true,
});
document.body.addEventListener('mouseleave', handleAnchorMouseLeave, {
passive: true,
capture: true,
});
return () => {
document.body.removeEventListener('mouseenter', handleAnchorMouseEnter);
document.body.removeEventListener('mouseleave', handleAnchorMouseLeave);
};
}, [handleAnchorMouseEnter, handleAnchorMouseLeave]);
if (!accountId) return null;
return (
<Overlay
rootClose
onHide={handleClose}
show={open}
target={anchor}
placement='bottom-start'
flip
offset={offset}
popperConfig={popperConfig}
>
{({ props }) => (
<div {...props} className='hover-card-controller'>
<HoverCardAccount accountId={accountId} ref={cardRef} />
</div>
)}
</Overlay>
);
};