Resolve "Beim Navigieren durch das Vorlesungsverzeichnis aktualisiert sich der Seitentitel nicht"

Closes #4035

Merge request studip/studip!2890

app/controllers/search/courses.php

@@ -40,6 +40,7 @@ class Search_CoursesController extends AuthenticatedController
     public function index_action()
     {
         $nodeClass = '';
+        $title = _('Vorlesungsverzeichnis');
         if (Request::option('type', 'semtree') === 'semtree') {
             Navigation::activateItem('/search/courses/semtree');
             $nodeClass = StudipStudyArea::class;
@@ -52,10 +53,12 @@ class Search_CoursesController extends AuthenticatedController
             $this->treeTitle = _('Einrichtungen');
             $this->breadcrumbIcon = 'institute';
             $this->editUrl = $this->url_for('rangetree/edit');
+            $title = _('Einrichtungsverzeichnis');
         }
         $this->startId = Request::option('node_id', $nodeClass . '_root');
 
         $this->setupSidebar();
+        PageLayout::setTitle($title);
     }
 
     public function export_results_action()

resources/vue/components/tree/StudipTree.vue

@@ -44,6 +44,7 @@
 <script>
 import axios from 'axios';
 import { TreeMixin } from '../../mixins/TreeMixin';
+import PageLayout from '../../../assets/javascripts/lib/page_layout';
 import StudipProgressIndicator from '../StudipProgressIndicator.vue';
 import SearchWidget from '../SearchWidget.vue';
 import StudipTreeViewWidget from './StudipTreeViewWidget.vue';
@@ -176,7 +177,8 @@ export default {
             showStructuralNavigation: false,
             searchConfig: {},
             isSearching: false,
-            viewConfig: null
+            viewConfig: null,
+            pageTitle: document.title
         }
     },
     methods: {
@@ -188,6 +190,7 @@ export default {
                 semester: this.semester,
                 semClass: this.semClass
             };
+            this.setPageTitle(this.currentNode.attributes.name);
             this.$nextTick(() => {
                 document.getElementById('tree-breadcrumb-' + node.attributes.id)?.focus();
             });
@@ -206,6 +209,10 @@ export default {
                 form.appendChild(input);
             }
             input.setAttribute('value', searchterm);
+        },
+        setPageTitle(nodeTitle) {
+            const title = this.pageTitle.split('-');
+            PageLayout.title = title.slice(0, -1).join('-') + '/ ' + nodeTitle + ' -' + title[title.length - 1];
         }
     },
     mounted() {
@@ -231,6 +238,7 @@ export default {
                 semester: this.semester,
                 semClass: this.semClass
             };
+            this.setPageTitle(this.currentNode.attributes.name);
         });
 
         axios.interceptors.request.eject(loadingIndicator);