Files
cunkebao_v3/nkebao/src/components/ui/dropdown-menu.tsx

109 lines
3.0 KiB
TypeScript

import React, { useState, useRef, useEffect } from 'react';
interface DropdownMenuProps {
children: React.ReactNode;
}
export function DropdownMenu({ children }: DropdownMenuProps) {
return <>{children}</>;
}
interface DropdownMenuTriggerProps {
children: React.ReactNode;
asChild?: boolean;
}
export function DropdownMenuTrigger({ children }: DropdownMenuTriggerProps) {
return <>{children}</>;
}
interface DropdownMenuContentProps {
children: React.ReactNode;
align?: 'start' | 'center' | 'end';
}
export function DropdownMenuContent({ children, align = 'end' }: DropdownMenuContentProps) {
const [isOpen, setIsOpen] = useState(false);
const triggerRef = useRef<HTMLDivElement>(null);
const contentRef = useRef<HTMLDivElement>(null);
useEffect(() => {
const trigger = triggerRef.current;
if (!trigger) return;
const handleClick = () => setIsOpen(!isOpen);
trigger.addEventListener('click', handleClick);
return () => {
trigger.removeEventListener('click', handleClick);
};
}, [isOpen]);
useEffect(() => {
const handleClickOutside = (event: MouseEvent) => {
if (
contentRef.current &&
!contentRef.current.contains(event.target as Node) &&
triggerRef.current &&
!triggerRef.current.contains(event.target as Node)
) {
setIsOpen(false);
}
};
document.addEventListener('mousedown', handleClickOutside);
return () => {
document.removeEventListener('mousedown', handleClickOutside);
};
}, []);
return (
<div className="relative">
<div ref={triggerRef}>
{React.Children.map(children, (child) => {
if (React.isValidElement(child)) {
return React.cloneElement(child, {
...child.props,
children: (
<>
{child.props.children}
{isOpen && (
<div
ref={contentRef}
className={`absolute z-50 mt-2 min-w-[8rem] overflow-hidden rounded-md border bg-white p-1 shadow-md ${
align === 'start' ? 'left-0' : align === 'center' ? 'left-1/2 transform -translate-x-1/2' : 'right-0'
}`}
>
{children}
</div>
)}
</>
)
});
}
return child;
})}
</div>
</div>
);
}
interface DropdownMenuItemProps {
children: React.ReactNode;
onClick?: () => void;
disabled?: boolean;
}
export function DropdownMenuItem({ children, onClick, disabled = false }: DropdownMenuItemProps) {
return (
<button
className={`relative flex w-full cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none transition-colors hover:bg-gray-100 focus:bg-gray-100 disabled:pointer-events-none disabled:opacity-50 ${
disabled ? 'cursor-not-allowed opacity-50' : ''
}`}
onClick={onClick}
disabled={disabled}
>
{children}
</button>
);
}