Ticket #61899: 61899.diff

src/wp-admin/includes/class-wp-list-table.php

@@ -387 +387 @@
 
                 $input_id = $input_id . '-search-input';
 
-                if ( ! empty( $_REQUEST['orderby'] ) ) {
-                        if ( is_array( $_REQUEST['orderby'] ) ) {
-                                foreach ( $_REQUEST['orderby'] as $key => $value ) {
-                                        echo '<input type="hidden" name="orderby[' . esc_attr( $key ) . ']" value="' . esc_attr( $value ) . '" />';
+                $builtin_hidden_fields = array(
+                        'orderby',
+                        'order',
+                        'post_mime_type',
+                        'detached',
+                );
+
+                /**
+                 * Filters the list of hidden custom query variables.
+                 * This filter should be used to add custom query variables that are hidden from the search query.
+                 *
+                 * @since unreleased
+                 *
+                 * @param string[] $custom_hidden_fields An array of hidden custom query variables.
+                 * @param string   $class_name The class name of the current list table.
+                 */
+                $custom_hidden_fields = apply_filters( 'search_box_custom_args', [], get_class( $this ) );
+
+                $hidden_fields = array_merge(
+                        $builtin_hidden_fields,
+                        array_filter( $custom_hidden_fields, function ( $query_arg ) {
+                                return is_string( $query_arg );
+                        } )
+                );
+
+                foreach ( $hidden_fields as $name ) {
+                        if ( ! empty( $_REQUEST[ $name ] ) ) {
+                                if ( is_array( $_REQUEST[ $name ] ) ) {
+                                        foreach ( $_REQUEST[ $name ] as $key => $value ) {
+                                                echo '<input type="hidden" name="' . esc_attr( $name ) . '[' . esc_attr( $key ) . ']" value="' . esc_attr( $value ) . '" />';
+                                        }
+                                } else {
+                                        echo '<input type="hidden" name="' . esc_attr( $name ) . '" value="' . esc_attr( $_REQUEST[ $name ] ) . '" />';
                                 }
-                        } else {
-                                echo '<input type="hidden" name="orderby" value="' . esc_attr( $_REQUEST['orderby'] ) . '" />';
                         }
                 }
-                if ( ! empty( $_REQUEST['order'] ) ) {
-                        echo '<input type="hidden" name="order" value="' . esc_attr( $_REQUEST['order'] ) . '" />';
-                }
-                if ( ! empty( $_REQUEST['post_mime_type'] ) ) {
-                        echo '<input type="hidden" name="post_mime_type" value="' . esc_attr( $_REQUEST['post_mime_type'] ) . '" />';
-                }
-                if ( ! empty( $_REQUEST['detached'] ) ) {
-                        echo '<input type="hidden" name="detached" value="' . esc_attr( $_REQUEST['detached'] ) . '" />';
-                }
                 ?>
 <p class="search-box">
         <label class="screen-reader-text" for="<?php echo esc_attr( $input_id ); ?>"><?php echo $text; ?>:</label>