Ticket #54375: 54375.diff

src/wp-includes/post.php

@@ -2112 +2112 @@
  * For all others, the 'publicly_queryable' value will be used.
  *
  * @since 5.7.0
+ * @since 5.9.0 Added `is_post_status_viewable` hook to filter the result.
  *
  * @param string|stdClass $post_status Post status name or object.
  * @return bool Whether the post status should be considered viewable.
@@ -2132 +2133 @@
                 return false;
         }
 
-        return $post_status->publicly_queryable || ( $post_status->_builtin && $post_status->public );
+        $is_viewable = $post_status->publicly_queryable || ( $post_status->_builtin && $post_status->public );
+
+        /**
+         * Filters whether a post status is considered "viewable".
+         *
+         * @since 5.9.0
+         *
+         * @param bool     $is_viewable Whether the post status is "viewable".
+         * @param stdClass $post_status Post status object.
+         */
+        $is_viewable = apply_filters( 'is_post_status_viewable', $is_viewable, $post_status );
+
+        // Make sure the filtered value is a boolean type before returning it.
+        if ( ! is_bool( $is_viewable ) {
+                return false;
+        }
+
+        return $is_viewable;
 }
 
 /**