Posts, Post Types/Taxonomies: Add object type specific registration filters.

Add post type and taxonomy specific registration argument hooks. 

Introduces the filters `register_{$post_type}_post_type_args` and `register_{$taxonomy}_taxonomy_args`. Introduces the actions `registered_post_type_{$post_type}` and `registered_taxonomy_{$taxonomy}`.

Props pbiron, dlh, davidbaumwald, hellofromTonya, milana_cap.
Fixes #53212.


Built from https://develop.svn.wordpress.org/trunk@53126


git-svn-id: http://core.svn.wordpress.org/trunk@52715 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-post-type.php

@@ -440,6 +440,21 @@ final class WP_Post_Type {
 		 */
 		$args = apply_filters( 'register_post_type_args', $args, $this->name );
 
+		$post_type = $this->name;
+
+		/**
+		 * Filters the arguments for registering a specific post type.
+		 *
+		 * The dynamic portion of the filter name, `$this->name`, refers to the post type key.
+		 *
+		 * @since 6.0.0
+		 *
+		 * @param array  $args      Array of arguments for registering a post type.
+		 *                          See the register_post_type() function for accepted arguments.
+		 * @param string $post_type Post type key.
+		 */
+		$args = apply_filters( "register_{$post_type}_post_type_args", $args, $this->name );
+
 		$has_edit_link = ! empty( $args['_edit_link'] );
 
 		// Args prefixed with an underscore are reserved for internal use.

wp-includes/class-wp-taxonomy.php

@@ -315,6 +315,22 @@ final class WP_Taxonomy {
 		 */
 		$args = apply_filters( 'register_taxonomy_args', $args, $this->name, (array) $object_type );
 
+		$taxonomy = $this->name;
+
+		/**
+		 * Filters the arguments for registering a specific taxonomy.
+		 *
+		 * The dynamic portion of the filter name, `$this->name`, refers to the taxonomy key.
+		 *
+		 * @since 6.0.0
+		 *
+		 * @param array    $args        Array of arguments for registering a taxonomy.
+		 *                              See the register_taxonomy() function for accepted arguments.
+		 * @param string   $taxonomy    Taxonomy key.
+		 * @param string[] $object_type Array of names of object types for the taxonomy.
+		 */
+		$args = apply_filters( "register_{$taxonomy}_taxonomy_args", $args, $this->name, (array) $object_type );
+
 		$defaults = array(
 			'labels'                => array(),
 			'description'           => '',

wp-includes/post.php

@@ -1709,6 +1709,18 @@ function register_post_type( $post_type, $args = array() ) {
 	 */
 	do_action( 'registered_post_type', $post_type, $post_type_object );
 
+	/**
+	 * Fires after a specific post type is registered.
+	 *
+	 * The dynamic portion of the filter name, `$post_type`, refers to the post type key.
+	 *
+	 * @since 6.0.0
+	 *
+	 * @param string       $post_type        Post type.
+	 * @param WP_Post_Type $post_type_object Arguments used to register the post type.
+	 */
+	do_action( "registered_post_type_{$post_type}", $post_type, $post_type_object );
+
 	return $post_type_object;
 }
 

wp-includes/taxonomy.php

@@ -529,6 +529,19 @@ function register_taxonomy( $taxonomy, $object_type, $args = array() ) {
 	 */
 	do_action( 'registered_taxonomy', $taxonomy, $object_type, (array) $taxonomy_object );
 
+	/**
+	 * Fires after a specific taxonomy is registered.
+	 *
+	 * The dynamic portion of the filter name, `$taxonomy`, refers to the taxonomy key.
+	 *
+	 * @since 6.0.0
+	 *
+	 * @param string       $taxonomy    Taxonomy slug.
+	 * @param array|string $object_type Object type or array of object types.
+	 * @param array        $args        Array of taxonomy registration arguments.
+	 */
+	do_action( "registered_taxonomy_{$taxonomy}", $taxonomy, $object_type, (array) $taxonomy_object );
+
 	return $taxonomy_object;
 }
 

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.0-alpha-53125';
+$wp_version = '6.0-alpha-53126';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.