init_hooks(); } return static::$instance; } /** * Hook into actions and filters. */ public function init_hooks() { add_action( 'admin_init', array( $this, 'admin_init' ) ); } /** * Admin Actions. */ public function admin_init() { // Post types to add the metabox to $this->post_types = array( 'post', 'page' ); $this->post_types = apply_filters( 'wpex_gallery_metabox_post_types', array_combine( $this->post_types, $this->post_types ) ); // return if no post types if ( ! $this->post_types ) { return; } // Add metabox to corresponding post types foreach( $this->post_types as $key => $val ) { add_action( 'add_meta_boxes_' . $val, array( $this, 'add_meta' ), 20 ); } // Save metabox add_action( 'save_post', array( $this, 'save_meta' ) ); } /** * Adds the gallery metabox. */ public function add_meta( $post ) { add_meta_box( 'wpex-gallery-metabox-2', esc_html__( 'Image Gallery', 'total-theme-core' ), array( $this, 'display_metabox' ), $post->post_type, 'side', 'default' ); } /** * Render the gallery metabox. */ public function display_metabox() { global $post; $this->load_scripts(); ?>

esc_html__( 'Add Images to Gallery', 'total-theme-core' ), 'button' => esc_html__( 'Add to gallery', 'total-theme-core' ), 'remove' => esc_html__( 'Remove image', 'total-theme-core' ), ) ); } } Gallery_Metabox::instance();