Ticket #33625: template_action.diff

src/wp-admin/includes/meta-boxes.php

@@ -789 +789 @@
         if ( 'page' == $post->post_type && 0 != count( get_page_templates( $post ) ) && get_option( 'page_for_posts' ) != $post->ID ) {
                 $template = !empty($post->page_template) ? $post->page_template : false;
                 ?>
-<p><strong><?php _e('Template') ?></strong></p>
+<p><strong><?php _e('Template') ?></strong><?php
+                /**
+                 * Perform actions immediately after displaying the post editor Template metabox label.
+                 *
+                 * @since 4.4.0
+                 *
+                 * @param string $template The template used for the current post.
+                 */
+                do_action( 'meta_box_template_action', $template );
+?></p>
 <label class="screen-reader-text" for="page_template"><?php _e('Page Template') ?></label><select name="page_template" id="page_template">
 <?php
 /**