class-gravityview-metabox-tabs.php

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<?php

/**
 * Stores each GravityView_Metabox_Tab instance
 * @since 1.8
 * @see https://gist.github.com/zackkatz/6cc381bcf54849f2ed41 For example of adding a metabox
 * @see https://github.com/WebDevStudios/CMB2/blob/master/includes/CMB2_Boxes.php Thanks for the inspiration
 */
class GravityView_Metabox_Tabs {

    /**
     * Array of all GravityView_Metabox_Tab objects
     * @var   array
     * @since 1.8
     */
    protected static $meta_boxes = array();

    /**
     * Add a tab
     *
     * @since 1.8
     *
     * @param GravityView_Metabox_Tab $meta_box
     *
     * @return void
     */
    public static function add( GravityView_Metabox_Tab $meta_box ) {
        self::$meta_boxes[ $meta_box->id ] = $meta_box;
    }

    /**
     * Remove a tab by tab ID
     *
     * @since 1.8
     *
     * @param string $meta_box_id
     *
     * @return void
     */
    public static function remove( $meta_box_id ) {
        if ( array_key_exists( $meta_box_id, self::$meta_boxes ) ) {
            unset( self::$meta_boxes[ $meta_box_id ] );
        }
    }

    /**
     * Get a tab by ID
     *
     * @since 1.8
     *
     * @param string $id
     *
     * @return bool|GravityView_Metabox_Tab False if none exist at the key $id; GravityView_Metabox_Tab if exists.
     */
    public static function get( $id ) {
        if ( empty( self::$meta_boxes ) || empty( self::$meta_boxes[ $id ] ) ) {
            return false;
        }

        return self::$meta_boxes[ $id ];
    }

    /**
     * Get array of all registered metaboxes
     *
     * @return array|GravityView_Metabox_Tab[] Empty array if no tabs, otherwise array of `GravityView_Metabox_Tab`s
     */
    public static function get_all() {
        return self::$meta_boxes;
    }

}