Ticket #37599: 37599.patch

wp-admin/js/post.js

@@ -922 +922 @@
         })();
 
         if ( typeof tinymce !== 'undefined' ) {
+
                 // When changing post formats, change the editor body class
                 $( '#post-formats-select input.post-format' ).on( 'change.set-editor-class', function() {
                         var editor, body, format = this.id;
@@ -933 +934 @@
                                 $( document ).trigger( 'editor-classchange' );
                         }
                 });
+
+                // When changing page template, change the editor body class
+                $( '#page_template' ).on( 'change.set-editor-class', function() {
+                        var editor, body, pageTemplate = $( this ).val();
+
+                        pageTemplate = pageTemplate.replace( '.php', '' ).substr( pageTemplate.lastIndexOf( '/' ) + 1, pageTemplate.length );
+
+                        if ( pageTemplate && ( editor = tinymce.get( 'content' ) ) ) {
+                                body = editor.getBody();
+                                body.className = body.className.replace( /\bpage-template-[^ ]+/, '' );
+                                editor.dom.addClass( body, pageTemplate == 'page-template-0' ? 'page-template-default' : 'page-template-' + pageTemplate );
+                                $( document ).trigger( 'editor-classchange' );
+                        }
+                });
+
         }
 
         // Save on pressing Ctrl/Command + S in the Text editor

wp-includes/class-wp-editor.php

@@ -663 +663 @@
                         $body_class = $editor_id;
 
                         if ( $post = get_post() ) {
+
                                 $body_class .= ' post-type-' . sanitize_html_class( $post->post_type ) . ' post-status-' . sanitize_html_class( $post->post_status );
+
                                 if ( post_type_supports( $post->post_type, 'post-formats' ) ) {
                                         $post_format = get_post_format( $post );
                                         if ( $post_format && ! is_wp_error( $post_format ) )
@@ -671 +673 @@
                                         else
                                                 $body_class .= ' post-format-standard';
                                 }
+
+                                if ( $page_template = get_page_template_slug( $post ) ) {
+                                        $body_class .= ' page-template-' . sanitize_html_class( basename( $page_template, '.php' ) );
+                                }
+
                         }
 
                         $body_class .= ' locale-' . sanitize_html_class( strtolower( str_replace( '_', '-', get_locale() ) ) );