Ticket #15015: 15015.4.diff

src/wp-includes/comment-template.php

@@ -2236 +2236 @@
                 'title_reply_to'       => __( 'Leave a Reply to %s' ),
                 'cancel_reply_link'    => __( 'Cancel reply' ),
                 'label_submit'         => __( 'Post Comment' ),
+                'submit_button'        => '<input name="%1$s" type="submit" id="%2$s" class="%3$s" value="%4$s" />',
                 'format'               => 'xhtml',
         );
 
@@ -2350 +2351 @@
                                                 echo apply_filters( 'comment_form_field_comment', $args['comment_field'] );
                                                 ?>
                                                 <?php echo $args['comment_notes_after']; ?>
+
+                                                <?php
+                                                $args_submit_button = sprintf(
+                                                        $args['submit_button'],
+                                                        esc_attr( $args['name_submit'] ),
+                                                        esc_attr( $args['id_submit'] ),
+                                                        esc_attr( $args['class_submit'] ),
+                                                        esc_attr( $args['label_submit'] )
+                                                );
+
                                                 <p class="form-submit">
-                                                        <input name="<?php echo esc_attr( $args['name_submit'] ); ?>" type="submit" id="<?php echo esc_attr( $args['id_submit'] ); ?>" class="<?php echo esc_attr( $args['class_submit'] ); ?>" value="<?php echo esc_attr( $args['label_submit'] ); ?>" />
+                                                        /**
+                                                         * Filter the submit button for the comment form for display.
+                                                         *
+                                                         * @since 4.2.0
+                                                         *
+                                                         * @param string $args_submit_button The HTML formatted output of the comment submit button.
+                                                         * @param array  $args               The comment form arguments.
+                                                         */
+                                                        echo apply_filters( 'comment_form_submit_button', $args_submit_button, $args );
+                                                        ?>
                                                         <?php comment_id_fields( $post_id ); ?>
                                                 </p>
+
                                                 <?php
                                                 /**
                                                  * Fires at the bottom of the comment form, inside the closing </form> tag.