Featured_Content

13class Featured_Content {14 15	/**16	 * The maximum number of posts a Featured Content area can contain.17	 *18	 * We define a default value here but themes can override19	 * this by defining a "max_posts" entry in the second parameter20	 * passed in the call to add_theme_support( 'featured-content' ).21	 *22	 * @see Featured_Content::init()23	 *24	 * @since Twenty Fourteen 1.025	 *26	 * @var int27	 */28	public static $max_posts = 15;29 30	/**31	 * Instantiate.32	 *33	 * All custom functionality will be hooked into the "init" action.34	 *35	 * @since Twenty Fourteen 1.036	 */37	public static function setup() {38		add_action( 'init', array( __CLASS__, 'init' ), 30 );39	}40 41	/**42	 * Conditionally hook into WordPress.43	 *44	 * Theme must declare that they support this module by adding45	 * add_theme_support( 'featured-content' ); during after_setup_theme.46	 *47	 * If no theme support is found there is no need to hook into WordPress.48	 * We'll just return early instead.49	 *50	 * @since Twenty Fourteen 1.051	 */52	public static function init() {53		$theme_support = get_theme_support( 'featured-content' );54 55		// Return early if theme does not support Featured Content.56		if ( ! $theme_support ) {57			return;58		}59 60		/*61		 * An array of named arguments must be passed as the second parameter62		 * of add_theme_support().63		 */64		if ( ! isset( $theme_support[0] ) ) {65			return;66		}67 68		// Return early if "featured_content_filter" has not been defined.69		if ( ! isset( $theme_support[0]['featured_content_filter'] ) ) {70			return;71		}72 73		$filter = $theme_support[0]['featured_content_filter'];74 75		// Theme can override the number of max posts.76		if ( isset( $theme_support[0]['max_posts'] ) ) {77			self::$max_posts = absint( $theme_support[0]['max_posts'] );78		}79 80		add_filter( $filter, array( __CLASS__, 'get_featured_posts' ) );81		add_action( 'customize_register', array( __CLASS__, 'customize_register' ), 9 );82		add_action( 'admin_init', array( __CLASS__, 'register_setting' ) );83		add_action( 'switch_theme', array( __CLASS__, 'delete_transient' ) );84		add_action( 'save_post', array( __CLASS__, 'delete_transient' ) );85		add_action( 'delete_post_tag', array( __CLASS__, 'delete_post_tag' ) );86		add_action( 'customize_controls_enqueue_scripts', array( __CLASS__, 'enqueue_scripts' ) );87		add_action( 'pre_get_posts', array( __CLASS__, 'pre_get_posts' ) );88		add_action( 'wp_loaded', array( __CLASS__, 'wp_loaded' ) );89	}90 91	/**92	 * Hide "featured" tag from the front end.