From 5eafda657ec3d1d96f1f27145f7ec9cae2999cd0 Mon Sep 17 00:00:00 2001
From: James C <5689414+james-cnz@users.noreply.github.com>
Date: Tue, 15 Oct 2024 21:53:35 +1300
Subject: [PATCH] Moodle 4.5 subsections WIP 13

---
 classes/output/courseformat/content.php       |  2 +-
 .../output/courseformat/content/section.php   | 19 ++++++-------------
 locallib.php                                  |  4 ++--
 3 files changed, 9 insertions(+), 16 deletions(-)

diff --git a/classes/output/courseformat/content.php b/classes/output/courseformat/content.php
index ef859e0..ac17c1c 100644
--- a/classes/output/courseformat/content.php
+++ b/classes/output/courseformat/content.php
@@ -361,7 +361,7 @@ private function get_sections_to_display(\course_modinfo $modinfo): array {
             if (!empty($thissectionextra->sectionbase->component)) {
                 continue;
             }
-            $pageid = ($thissectionextra->levelsan != FORMAT_MULTITOPIC_SECTION_LEVEL_TOPIC) ?
+            $pageid = ($thissectionextra->levelsan < FORMAT_MULTITOPIC_SECTION_LEVEL_TOPIC) ?
                         $thissectionextra->id : $thissectionextra->parentid;
             $onpage = ($pageid == $format->get_sectionid());
             if ($onpage || $format->show_editor()) {
diff --git a/classes/output/courseformat/content/section.php b/classes/output/courseformat/content/section.php
index f5a8def..3f0628e 100644
--- a/classes/output/courseformat/content/section.php
+++ b/classes/output/courseformat/content/section.php
@@ -79,20 +79,14 @@ public function export_for_template(\renderer_base $output): \stdClass {
      * @return bool if the cm has name data
      */
     protected function add_header_data(\stdClass &$data, \renderer_base $output): bool {
-        if (!empty($this->hidetitle)) {
-            return false;
+        $result = parent::add_header_data($data, $output);
+        if (!$result || !empty($section->component)) {
+            return $result;
         }
 
-        $section = $this->section;
-        $format = $this->format;
-
-        $header = new $this->headerclass($format, $section);
-        $headerdata = $header->export_for_template($output);
-
-        if ($section->id == $format->get_sectionid() && !empty($section->component)) {
-            $data->singleheader = $headerdata;
-        } else {
-            $data->header = $headerdata;
+        if (isset($data->singleheader) && !isset($data->header)) {
+            $data->header = $data->singleheader;
+            unset($data->singleheader);
         }
         return true;
     }
@@ -160,7 +154,6 @@ protected function add_editor_data(\stdClass &$data, \renderer_base $output): bo
             $controlmenu = new $this->controlmenuclass($this->format, $this->section);
             $data->controlmenu = $controlmenu->export_for_template($output);
         }
-
         return true;
     }
 
diff --git a/locallib.php b/locallib.php
index 4e34f4c..4232620 100644
--- a/locallib.php
+++ b/locallib.php
@@ -398,7 +398,7 @@ function format_multitopic_reorder_sections(array $sectionsextra, $origins, \std
         $sections[$id]->level = ($sectionextra->levelsan >= FORMAT_MULTITOPIC_SECTION_LEVEL_TOPIC
                                         && $sectionextra->levelsan != $originlevel) ?
                                     FORMAT_MULTITOPIC_SECTION_LEVEL_TOPIC       // Don't change topic level.
-                                    : $sectionextra->levelsan + $levelchange;
+                                    : max($sectionextra->levelsan + $levelchange, 0);
     }
 
     // Append rest of array.
@@ -407,7 +407,7 @@ function format_multitopic_reorder_sections(array $sectionsextra, $origins, \std
             $sections[$id] = new \stdClass;
             $sections[$id]->id = $id;
             $sections[$id]->visible = $sectionextra->visiblesan;
-            $sections[$id]->level = $sectionextra->levelsan;
+            $sections[$id]->level = max($sectionextra->levelsan, 0);
         }
     }