ragflow-main/web/src/components/ui/loading-button.tsx

// https://github.com/hsuanyi-chou/shadcn-ui-expansions/blob/main/components/ui/loading-button.tsx

import { cn } from '@/lib/utils';
import { Slot, Slottable } from '@radix-ui/react-slot';
import { cva, type VariantProps } from 'class-variance-authority';
import { Loader2 } from 'lucide-react';
import * as React from 'react';

const buttonVariants = cva(
  'inline-flex items-center justify-center rounded-md text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50',
  {
    variants: {
      variant: {
        default: 'bg-primary text-primary-foreground hover:bg-primary/90',
        destructive:
          'bg-destructive text-destructive-foreground hover:bg-destructive/90',
        outline:
          'border border-input bg-background hover:bg-accent hover:text-accent-foreground',
        secondary:
          'bg-secondary text-secondary-foreground hover:bg-secondary/80',
        ghost: 'hover:bg-accent hover:text-accent-foreground',
        link: 'text-primary underline-offset-4 hover:underline',
        tertiary:
          'bg-colors-background-sentiment-solid-primary text-colors-text-persist-light hover:bg-colors-background-sentiment-solid-primary/80',
      },
      size: {
        default: 'h-10 px-4 py-2',
        sm: 'h-9 rounded-md px-3',
        lg: 'h-11 rounded-md px-8',
        icon: 'h-10 w-10',
      },
    },
    defaultVariants: {
      variant: 'default',
      size: 'default',
    },
  },
);

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean;
  loading?: boolean;
}

const LoadingButton = React.forwardRef<HTMLButtonElement, ButtonProps>(
  (
    {
      className,
      loading = false,
      children,
      disabled,
      variant,
      size,
      asChild = false,
      ...props
    },
    ref,
  ) => {
    const Comp = asChild ? Slot : 'button';
    return (
      <Comp
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        disabled={loading || disabled}
        {...props}
      >
        {loading && <Loader2 className="mr-2 h-5 w-5 animate-spin" />}
        <Slottable>{children}</Slottable>
      </Comp>
    );
  },
);
LoadingButton.displayName = 'LoadingButton';

export { LoadingButton, buttonVariants };