Twenty_Twenty_One_Customize

16	class Twenty_Twenty_One_Customize {17 18		/**19		 * Constructor. Instantiates the object.20		 *21		 * @since Twenty Twenty-One 1.022		 */23		public function __construct() {24			add_action( 'customize_register', array( $this, 'register' ) );25		}26 27		/**28		 * Registers customizer options.29		 *30		 * @since Twenty Twenty-One 1.031		 *32		 * @param WP_Customize_Manager $wp_customize Theme Customizer object.33		 * @return void34		 */35		public function register( $wp_customize ) {36 37			// Change site-title & description to postMessage.38			foreach ( array( 'blogname', 'blogdescription' ) as $setting_id ) {39				$setting = $wp_customize->get_setting( $setting_id );40				if ( $setting ) {41					$setting->transport = 'postMessage';42				}43			}44 45			// Add partial for blogname.46			$wp_customize->selective_refresh->add_partial(47				'blogname',48				array(49					'selector'        => '.site-title',50					'render_callback' => array( $this, 'partial_blogname' ),51				)52			);53 54			// Add partial for blogdescription.55			$wp_customize->selective_refresh->add_partial(56				'blogdescription',57				array(58					'selector'        => '.site-description',59					'render_callback' => array( $this, 'partial_blogdescription' ),60				)61			);62 63			// Add "display_title_and_tagline" setting for displaying the site-title & tagline.64			$wp_customize->add_setting(65				'display_title_and_tagline',66				array(67					'capability'        => 'edit_theme_options',68					'default'           => true,69					'sanitize_callback' => array( __CLASS__, 'sanitize_checkbox' ),70				)71			);72 73			// Add control for the "display_title_and_tagline" setting.74			$wp_customize->add_control(75				'display_title_and_tagline',76				array(77					'type'    => 'checkbox',78					'section' => 'title_tagline',79					'label'   => esc_html__( 'Display Site Title & Tagline', 'twentytwentyone' ),80				)81			);82 83			/**84			 * Add excerpt or full text selector to customizer85			 */86			$wp_customize->add_section(87				'excerpt_settings',88				array(89					'title'    => esc_html__( 'Excerpt Settings', 'twentytwentyone' ),90					'priority' => 120,91				)92			);93 94			$wp_customize->add_setting(95				'display_excerpt_or_full_post',