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import React, { useEffect, useRef } from 'react';
import ReactDOM from 'react-dom';
interface ModalProps {
isOpen: boolean;
onClose: () => void;
title?: string;
children: React.ReactNode;
footer?: React.ReactNode;
size?: 'sm' | 'md' | 'lg';
closeOnClickOutside?: boolean;
}
const Modal: React.FC<ModalProps> = ({
isOpen,
onClose,
title,
children,
footer,
size = 'md',
closeOnClickOutside = true
}) => {
const modalRef = useRef<HTMLDivElement>(null);
// 处理ESC按键关闭模态框
useEffect(() => {
const handleEscKey = (event: KeyboardEvent) => {
if (event.key === 'Escape' && isOpen) {
onClose();
}
};
window.addEventListener('keydown', handleEscKey);
return () => {
window.removeEventListener('keydown', handleEscKey);
};
}, [isOpen, onClose]);
// 阻止点击模态框内部时传播到外部背景
const handleModalClick = (e: React.MouseEvent) => {
e.stopPropagation();
};
// 处理点击背景关闭模态框
const handleBackdropClick = (e: React.MouseEvent) => {
if (closeOnClickOutside && modalRef.current && !modalRef.current.contains(e.target as Node)) {
onClose();
}
};
// 防止模态框打开时页面滚动
useEffect(() => {
if (isOpen) {
document.body.style.overflow = 'hidden';
} else {
document.body.style.overflow = '';
}
return () => {
document.body.style.overflow = '';
};
}, [isOpen]);
// 获取模态框大小样式
const getSizeClass = () => {
switch (size) {
case 'sm':
return 'max-w-md';
case 'md':
return 'max-w-lg';
case 'lg':
return 'max-w-2xl';
default:
return 'max-w-lg';
}
};
if (!isOpen) return null;
// 使用React Portal将模态框渲染到DOM树的最顶层
return ReactDOM.createPortal(
<div
className={`ios-modal-backdrop open fixed inset-0 z-50 overflow-auto bg-black bg-opacity-40 flex items-center justify-center p-4`}
onClick={handleBackdropClick}
>
<div
ref={modalRef}
className={`ios-modal ${getSizeClass()} bg-white rounded-xl shadow-xl transform transition-all`}
onClick={handleModalClick}
>
{title && (
<div className="ios-modal-header px-6 py-4 border-b border-gray-200">
<h3 className="ios-modal-title text-lg font-semibold text-center">{title}</h3>
</div>
)}
<div className="ios-modal-body p-6 max-h-[70vh] overflow-auto">
{children}
</div>
{footer && (
<div className="ios-modal-footer border-t border-gray-200">
{footer}
</div>
)}
</div>
</div>,
document.body
);
};
// 预定义的模态框按钮布局
export const ModalFooter: React.FC<{
children: React.ReactNode;
className?: string;
}> = ({ children, className = '' }) => {
return (
<div className={`flex border-t border-gray-200 ${className}`}>
{children}
</div>
);
};
// 预定义的模态框按钮
export const ModalButton: React.FC<{
children: React.ReactNode;
onClick: () => void;
variant?: 'primary' | 'secondary' | 'danger';
className?: string;
}> = ({
children,
onClick,
variant = 'secondary',
className = ''
}) => {
const getVariantClass = () => {
switch (variant) {
case 'primary':
return 'text-blue-600 hover:bg-blue-50';
case 'secondary':
return 'text-gray-600 hover:bg-gray-50';
case 'danger':
return 'text-red-600 hover:bg-red-50';
default:
return 'text-gray-600 hover:bg-gray-50';
}
};
return (
<button
className={`
flex-1 py-3 px-5 text-center font-medium text-sm transition-colors duration-200
${getVariantClass()}
${className}
`}
onClick={onClick}
>
{children}
</button>
);
};
export default Modal; |