NextJS开发：shadcn/ui中Button组件扩展增加图标

shadcn/ui组件比较灵活，但是功能相比ant之类组件还是缺少太多功能，本文为shadcn/ui为button组件增加图标，加载中动画等效果。

1. 安装Lucide

npm install lucide
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2. Lucide组件

import { cn } from '@/lib/utils';
import { icons } from 'lucide-react';

const LcIcon = ({ name, color, size, className }: { name: string, color?: string, size: number, className?: string}) => {
  const LucideIcon = (icons as any)[name];
  if(LucideIcon == null) {
    return <></>
  }
  if(color != null) {
    return <LucideIcon color={color} size={size} />
  } else {
    return <LucideIcon size={size} className={cn("", className)}/>
  }
};

export default LcIcon;
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3. 创建组件CustomButton

"use client"
import React, { MouseEventHandler } from "react";
import { Button } from "../ui/button";
import LcIcon from "./lc-icon";

/** 
 * Button扩展，增加图标功能 
 * Button
 * */
export const CustomButton = (props: {
  className?: string, 
  icon?: string, 
  loading?: boolean
  disabled?: boolean,
  type?: string,
  onClick?: MouseEventHandler<HTMLButtonElement>,
  children?: any
}) => {

  const buildIcon = () => {
    if(props.loading != null && props.loading) {
      return <LcIcon name="Loader" size={16} className="mr-1 animate-spin"/>
    }
    else if(props.icon != null) {
      return <LcIcon name={props.icon} size={16} className="mr-1"/>
    }
    return ""
  }

  return (
    <Button type={props.type ?? 'button' as any} className={props.className} disabled={props.disabled} onClick={props.onClick}>
      { buildIcon() }
      { props.children }
    </Button>
  )
}
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4. 组件使用，

显示加载中

import { CustomButton } from "@/components/app/custom-button";

<CustomButton loading={true} disabled={true} >测试</CustomButton>
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显示图标

import { CustomButton } from "@/components/app/custom-button";

<CustomButton icon="Home">测试</CustomButton>
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