EDD checkout login form hack

file.php

<?php

/**
 * Place checkout login form behind a toggle link
 */
function eddwp_checkout_login_toggle() {
	if ( is_user_logged_in() ) {
		return;
	}
	?>
		<div class="edd-show-login-wrap">
			<p id="edd-show-login">
				<span class="edd-checkout-login-title">Do you already have an account?</span>
				<span class="edd-checkout-login-toggle"><a href="#" class="edd-checkout-show-login-form">Click to log in</a></span>
			</p>
		</div>
	<?php
}
add_action( 'edd_checkout_form_top', 'eddwp_checkout_login_toggle', 1 );
remove_action( 'edd_purchase_form_login_fields', 'edd_get_login_fields' );
add_action( 'edd_checkout_form_top', 'edd_get_login_fields', 2 );