felixarntz/theme-boilerplate

<?php
/**
 * Super_Awesome_Theme_Login_Links_Widget class
 *
 * @package Super_Awesome_Theme
 * @license GPL-2.0-or-later
 * @link    https://super-awesome-author.org/themes/super-awesome-theme/
 */

/**
 * Class used to display login and register in a widget area.
 *
 * @since 1.0.0
 */
class Super_Awesome_Theme_Login_Links_Widget extends Super_Awesome_Theme_Widget {

    /**
     * Gets the title of the widget.
     *
     * @since 1.0.0
     *
     * @return string Title for the widget.
     */
    protected function get_title() {
        return __( 'Login Links', 'super-awesome-theme' );
    }

    /**
     * Gets the description of the widget.
     *
     * @since 1.0.0
     *
     * @return string Description for the widget.
     */
    protected function get_description() {
        return __( 'Displays a login link and optionally a registration link with icons.', 'super-awesome-theme' );
    }

    /**
     * Adds the available widget form fields.
     *
     * @since 1.0.0
     */
    protected function add_fields() {
        $this->add_title_field();

        $this->add_field( 'show_register_link', array(
            self::FIELD_ARG_TYPE  => self::FIELD_TYPE_CHECKBOX,
            self::FIELD_ARG_TITLE => __( 'Show registration link?', 'super-awesome-theme' ),
        ) );
    }

    /**
     * Renders the widget for a given instance.
     *
     * @since 1.0.0
     *
     * @param array $instance Settings for the current widget instance.
     */
    protected function render( array $instance ) {
        $login_url      = '';
        $login_label    = '';
        $register_url   = '';
        $register_label = '';

        if ( ! is_user_logged_in() ) {
            $login_url   = wp_login_url();
            $login_label = _x( 'Log in', 'action', 'super-awesome-theme' );

            if ( get_option( 'users_can_register' ) && ! empty( $instance['show_register_link'] ) ) {
                $register_url   = wp_registration_url();
                $register_label = _x( 'Register', 'action', 'super-awesome-theme' );
            }
        } else {
            $login_url   = wp_logout_url();
            $login_label = _x( 'Log out', 'action', 'super-awesome-theme' );
        }

        ?>
        <ul>
            <?php if ( ! empty( $login_url ) && ! empty( $login_label ) ) : ?>
                <li>
                    <a href="<?php echo esc_url( $login_url ); ?>">
                        <?php echo $this->manager->get_dependency( 'icons' )->get_svg( 'login' ); /* WPCS: XSS OK. */ ?>
                        <?php echo esc_html( $login_label ); ?>
                    </a>
                </li>
            <?php endif; ?>
            <?php if ( ! empty( $register_url ) && ! empty( $register_label ) ) : ?>
                <li>
                    <a href="<?php echo esc_url( $register_url ); ?>">
                        <?php echo $this->manager->get_dependency( 'icons' )->get_svg( 'register' ); /* WPCS: XSS OK. */ ?>
                        <?php echo esc_html( $register_label ); ?>
                    </a>
                </li>
            <?php endif; ?>
        </ul>
        <?php
    }
}