storybook/code/renderers/web-components/template/cli/ts/Button.ts

import { html } from 'lit';
import { styleMap } from 'lit/directives/style-map.js';
import './button.css';

export interface ButtonProps {
  /**
   * Is this the principal call to action on the page?
   */
  primary?: boolean;
  /**
   * What background color to use
   */
  backgroundColor?: string;
  /**
   * How large should the button be?
   */
  size?: 'small' | 'medium' | 'large';
  /**
   * Button contents
   */
  label: string;
  /**
   * Optional click handler
   */
  onClick?: () => void;
}
/**
 * Primary UI component for user interaction
 */
export const Button = ({ primary, backgroundColor, size, label, onClick }: ButtonProps) => {
  const mode = primary ? 'storybook-button--primary' : 'storybook-button--secondary';

  return html`
    <button
      type="button"
      class=${['storybook-button', `storybook-button--${size || 'medium'}`, mode].join(' ')}
      style=${styleMap({ backgroundColor })}
      @click=${onClick}
    >
      ${label}
    </button>
  `;
};