From a9732b8977a8c325a307a95112147dc7fbcb0b27 Mon Sep 17 00:00:00 2001
From: Juan Leyva <juanleyvadelgado@gmail.com>
Date: Wed, 17 Oct 2018 16:20:52 +0200
Subject: [PATCH] MDL-63694 block_html: Implement get_content_for_external

---
 blocks/html/block_html.php | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/blocks/html/block_html.php b/blocks/html/block_html.php
index 505ff270311d0..954a8099fb76e 100644
--- a/blocks/html/block_html.php
+++ b/blocks/html/block_html.php
@@ -86,6 +86,41 @@ function get_content() {
         return $this->content;
     }
 
+    public function get_content_for_external($output) {
+        global $CFG;
+        require_once($CFG->libdir . '/externallib.php');
+
+        $bc = new stdClass;
+        $bc->title = null;
+        $bc->content = '';
+        $bc->contenformat = FORMAT_MOODLE;
+        $bc->footer = '';
+        $bc->files = [];
+
+        if (!$this->hide_header()) {
+            $bc->title = $this->title;
+        }
+
+        if (isset($this->config->text)) {
+            $filteropt = new stdClass;
+            if ($this->content_is_trusted()) {
+                // Fancy html allowed only on course, category and system blocks.
+                $filteropt->noclean = true;
+            }
+
+            $format = FORMAT_HTML;
+            // Check to see if the format has been properly set on the config.
+            if (isset($this->config->format)) {
+                $format = $this->config->format;
+            }
+            list($bc->content, $bc->contentformat) =
+                external_format_text($this->config->text, $format, $this->context, 'block_html', 'content', null, $filteropt);
+            $bc->files = external_util::get_area_files($this->context->id, 'block_html', 'content', false, false);
+
+        }
+        return $bc;
+    }
+
 
     /**
      * Serialize and store config data