Resolve "Wiki: Jede Seite hat als Titel "WikiWikiWeb" in der Kopfzeile"

lib/models/WikiPage.class.php

@@ -289,4 +289,23 @@ class WikiPage extends SimpleORMap implements PrivacyObject
         return $descendants;
     }
 
+    /**
+     * @param string $other_keyword
+     * @return bool
+     */
+    public function isDescendantOf(string $other_keyword): bool
+    {
+        if ($other_keyword === $this->keyword) {
+            return false;
+        }
+        $other_page = WikiPage::findLatestPage($this->range_id, $other_keyword);
+        if ($other_page) {
+            foreach ($other_page->getDescendants() as $descendant) {
+                if ($descendant->keyword === $this->keyword) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
 }

lib/modules/CoreWiki.class.php

@@ -173,7 +173,7 @@ class CoreWiki extends CorePlugin implements StudipModule
      */
     public static function getTOC($startPage): TOCItem
     {
-        $root = new TOCItem($startPage->keyword);
+        $root = new TOCItem($startPage->keyword === 'WikiWikiWeb' ? _('Wiki-Startseite') : $startPage->keyword);
         $root->setURL(URLHelper::getURL('wiki.php', ['keyword' => $startPage->keyword]))
             ->setActive($startPage->keyword == Request::get('keyword') ||
                 $startPage->keyword == 'WikiWikiWeb' && !Request::get('keyword'));

lib/wiki.inc.php

@@ -995,6 +995,13 @@ function wikiEdit($keyword, $wikiData, $user_id, $backpage=NULL, $ancestor=NULL)
             $page->version, $editor);
         $page_string .= '<br>';
         $page_string .= strftime(_('am %x, %X'), $page->chdate);
+        if ($page->keyword === 'WikiWikiWeb' || $page->isDescendantOf('WikiWikiWeb')) {
+            $toc = CoreWiki::getTOC(WikiPage::getStartPage(Context::getId()));
+        } else {
+            $toc = new TOCItem($page->keyword);
+        }
+    } else {
+        $toc = new TOCItem($keyword === 'WikiWikiWeb' ? _('Wiki-Startseite') : $keyword);
     }
 
     // Action menu for content bar.
@@ -1027,7 +1034,7 @@ function wikiEdit($keyword, $wikiData, $user_id, $backpage=NULL, $ancestor=NULL)
     }
 
     // Create content bar.
-    $contentBar = new ContentBar(CoreWiki::getTOC(WikiPage::getStartPage(Context::getId())),
+    $contentBar = new ContentBar($toc,
         $page_string, Icon::create('wiki'), $actionMenu);
 
     $template = $GLOBALS['template_factory']->open('wiki/edit.php');
@@ -1540,6 +1547,13 @@ function showWikiPage($keyword, $version, $special="", $show_comments="icon", $h
             $page->version, $editor);
         $page_string .= '<br>';
         $page_string .= strftime(_('am %x, %X'), $page->chdate);
+        if ($page->keyword === 'WikiWikiWeb' || $page->isDescendantOf('WikiWikiWeb')) {
+            $toc = CoreWiki::getTOC(WikiPage::getStartPage(Context::getId()));
+        } else {
+            $toc = new TOCItem($page->keyword);
+        }
+    } else {
+        $toc = new TOCItem($keyword === 'WikiWikiWeb' ? _('Wiki-Startseite') : $keyword);
     }
 
     // Action menu for content bar.
@@ -1577,7 +1591,7 @@ function showWikiPage($keyword, $version, $special="", $show_comments="icon", $h
     }
 
     // Create content bar.
-    $contentBar = new ContentBar(CoreWiki::getTOC(WikiPage::getStartPage(Context::getId())),
+    $contentBar = new ContentBar($toc,
         $page_string, Icon::create('wiki'), $actionMenu);
 
     if ($hilight) {