Ticket #17447: register_post_type_args-hook-v2.diff

trunk/wp-includes/post.php

@@ -1210 +1210 @@
                 '_edit_link'           => 'post.php?post=%d',
         );
         $args = wp_parse_args( $args, $defaults );
-        $args = (object) $args;
+        $args['name'] = sanitize_key( $post_type );
+        /**
+         * Allow preprocessing of post type arguments.
+         *
+         * Empowers developers to:
+         *
+         *    - Change visbility values or disable post types or provided by a plugin/theme
+         *                      not needed for a specific site.
+         *              - Add new plugin/theme specific "supports" for default post types and
+         *      custom post types that don't explicity specify supports.
+         *              - Add new plugin/theme specific values to support  plugin/theme added features.
+         *                      For example, 'my_exporter' value could be set to information that the My Exporter
+         *      plugin uses to implement an export such as columns to include, column labels,
+         *      WP_Query args for default export as well as meta fields to include.
+         *    - Disable default rewrite rule addition so customized rewrite rules could be added
+         *      in a function called for the 'registered_post_type' hook.
+         *    - Disable default metabox callback registration so customized metabox callback registration
+         *      could be performed in a function called for the 'registered_post_type' hook.
+         *    - Disable taxonomy registration for object so customized taxonomy registration for
+         *      object could be performed in a function called for the 'registered_post_type' hook.
+         *
+         * @since 3.9.0
+         *
+         * @param array|string $args See optional args description in function header above.
+         * @param string $post_type Post type key passed to register_post_type(), after
+         *                          sanitization. Should not exceed 20 characters.
+         */
+        $args = apply_filters( 'register_post_type_args', $args, $post_type );
+        if ( empty( $args ) ) {
+                return false;
+        }
 
-        $post_type = sanitize_key( $post_type );
-        $args->name = $post_type;
+        $post_type = $args['name'];
+
+        $args = (object) $args;
 
         if ( strlen( $post_type ) > 20 )
                 return new WP_Error( 'post_type_too_long', __( 'Post types cannot exceed 20 characters in length' ) );