# All files / elements/Button component.js

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     import React from 'react';
    import PropTypes from 'prop-types';
    import { removeSomeProps } from 'src/utils/componentHelpers';
    import { emailHrefString } from 'src/elements/typography/Link/utils';
    import { boxShadow } from 'styled-system';
    import { Link as ReactRouterLink } from 'react-router-dom';
    import {
      flexboxProps,
      layoutProps,
      positionProps,
      spaceProps,
      typography,
    } from 'src/utils/styledHelpers';

    const propsToTrim = {
      ...flexboxProps.propTypes,
      ...layoutProps.propTypes,
      ...positionProps.propTypes,
      ...spaceProps.propTypes,
      ...typography.propTypes,
      variant: PropTypes.string,
    };
    const propsToTrimForButton = {
      ...propsToTrim,
      ...boxShadow.propTypes,
      bgActiveColor: PropTypes.string,
      bgHoverColor: PropTypes.string,
      contained: false,
      href: PropTypes.string,
      outline: false,
      raised: false,
      target: PropTypes.string,
      to: PropTypes.string,
    };

    const propsToTrimForLink = {
      ...propsToTrim,
      ...boxShadow.propTypes,
      bgActiveColor: PropTypes.string,
      bgHoverColor: PropTypes.string,
      contained: false,
      outline: false,
      raised: false,
    };
    export const ButtonComponent = ({
      children,
      emailHref,
      href,
      to,
      ...props
    }) => {
      let output = null;
      const trimmedPropsLink = removeSomeProps(props, Object.keys(propsToTrimForLink));
      const emailLinkHref = emailHrefString(emailHref);
      if (href) {
        output = (
          <a href={href} {...trimmedPropsLink}>
            <div>{children}</div>
          </a>
        );
      } else if (to) {
        const linkProps = {
          to,
        };
        output = (
          <ReactRouterLink {...trimmedPropsLink} {...linkProps}>
            <div>{children}</div>
          </ReactRouterLink>
        );
      } else if (emailLinkHref) {
        return (
          <a href={emailLinkHref} {...trimmedPropsLink}>
            <div>{children}</div>
          </a>
        );
      } else {
        output = (
          <button type="button" {...removeSomeProps(props, Object.keys(propsToTrimForButton))}>
            <div>{children}</div>
          </button>
        );
      }
      return output;
    };
    ButtonComponent.propTypes = {
      children: PropTypes.any,
      emailHref: PropTypes.shape({
        bcc: PropTypes.string,
        body: PropTypes.string,
        cc: PropTypes.string,
        subject: PropTypes.string,
        to: PropTypes.string,
      }),
      href: PropTypes.string,
      to: PropTypes.string,
    };
    ButtonComponent.defaultProps = {
      children: null,
      emailHref: {},
      href: null,
      to: null,
    };