From affa96f141556099874dfc3f6736c0fb62fc07b8 Mon Sep 17 00:00:00 2001
From: "chrsitof.buch" <christof.buch@kroepelin-projekte.de>
Date: Wed, 18 Mar 2026 11:18:26 +0100
Subject: [PATCH] Language variable lso#:#unparticipate modified. Modal added
 to unsubscripe process.

---
 .../Player/class.ilLSLaunchlinksBuilder.php   |  4 +--
 .../class.ilObjLearningSequenceLearnerGUI.php | 27 ++++++++++++++++---
 lang/ilias_de.lang                            |  2 +-
 3 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/components/ILIAS/LearningSequence/classes/Player/class.ilLSLaunchlinksBuilder.php b/components/ILIAS/LearningSequence/classes/Player/class.ilLSLaunchlinksBuilder.php
index 73ea5370dadf..80b65fd879f4 100755
--- a/components/ILIAS/LearningSequence/classes/Player/class.ilLSLaunchlinksBuilder.php
+++ b/components/ILIAS/LearningSequence/classes/Player/class.ilLSLaunchlinksBuilder.php
@@ -32,7 +32,7 @@ class ilLSLaunchlinksBuilder
     public const CMD_EXTRO = ilObjLearningSequenceLearnerGUI::CMD_EXTRO;
     public const CMD_START = ilObjLearningSequenceLearnerGUI::CMD_START;
     public const CMD_VIEW = ilObjLearningSequenceLearnerGUI::CMD_VIEW;
-    public const CMD_UNSUBSCRIBE = ilObjLearningSequenceLearnerGUI::CMD_UNSUBSCRIBE;
+    public const CMD_UNSUBSCRIBE_CONFIRMATION = ilObjLearningSequenceLearnerGUI::CMD_UNSUBSCRIBE_CONFIRMATION;
 
     public function __construct(
         protected ilLanguage $lng,
@@ -131,7 +131,7 @@ public function getLinks(): array
         if ($this->mayUnparticipate()) {
             $links[] = [
                 $this->lng->txt("unparticipate"),
-                $this->getLink(self::CMD_UNSUBSCRIBE),
+                $this->getLink(self::CMD_UNSUBSCRIBE_CONFIRMATION),
                 false
             ];
         }
diff --git a/components/ILIAS/LearningSequence/classes/Player/class.ilObjLearningSequenceLearnerGUI.php b/components/ILIAS/LearningSequence/classes/Player/class.ilObjLearningSequenceLearnerGUI.php
index d8b383e625f2..acf49194231e 100755
--- a/components/ILIAS/LearningSequence/classes/Player/class.ilObjLearningSequenceLearnerGUI.php
+++ b/components/ILIAS/LearningSequence/classes/Player/class.ilObjLearningSequenceLearnerGUI.php
@@ -19,11 +19,13 @@
 declare(strict_types=1);
 
 use ILIAS\HTTP\Wrapper\RequestWrapper;
+use ILIAS\UI\Component\Modal\Interruptive;
 
 class ilObjLearningSequenceLearnerGUI
 {
     public const CMD_STANDARD = 'learnerView';
     public const CMD_EXTRO = 'learnerViewFinished';
+    public const CMD_UNSUBSCRIBE_CONFIRMATION = 'unsubscribeConfirmation';
     public const CMD_UNSUBSCRIBE = 'unsubscribe';
     public const CMD_VIEW = 'view';
     public const CMD_START = 'start';
@@ -63,6 +65,9 @@ public function executeCommand(): void
                 $this->addMember($this->usr_id);
                 $this->ctrl->redirect($this, self::CMD_VIEW);
                 break;
+            case self::CMD_UNSUBSCRIBE_CONFIRMATION:
+                $this->unsubscribeConfirmationModal();
+                break;
             case self::CMD_UNSUBSCRIBE:
                 if ($this->launchlinks_builder->currentUserMayUnparticipate()) {
                     $this->roles->leave($this->usr_id);
@@ -81,17 +86,28 @@ public function executeCommand(): void
         }
     }
 
+    protected function unsubscribeConfirmationModal(): Interruptive
+    {
+        return $this->ui_factory->modal()->interruptive(
+            $this->lng->txt('obj_lso'),
+            $this->lng->txt("unparticipate"),
+            $this->ctrl->getLinkTarget($this, self::CMD_UNSUBSCRIBE),
+        );
+    }
+
     protected function view(string $cmd): void
     {
         $content = $this->getWrappedHTML(
             $this->getMainContent($cmd)
         );
 
-        $this->tpl->setContent($content);
+        $modal = $this->unsubscribeConfirmationModal();
+
+        $this->tpl->setContent($content . $this->renderer->render($modal));
 
         $element = '<' . ilPCLauncher::PCELEMENT . '>';
         if (!str_contains($content, $element)) {
-            $this->initToolbar($cmd);
+            $this->initToolbar($cmd, $modal);
         }
 
         $element = '<' . ilPCCurriculum::PCELEMENT . '>';
@@ -111,7 +127,7 @@ protected function addMember(int $usr_id): void
         }
     }
 
-    protected function initToolbar(string $cmd)
+    protected function initToolbar(string $cmd, Interruptive $modal): void
     {
         foreach ($this->launchlinks_builder->getLinks() as $entry) {
             list($label, $link, $primary) = $entry;
@@ -121,6 +137,11 @@ protected function initToolbar(string $cmd)
             } else {
                 $btn = $this->ui_factory->button()->standard($label, $link);
             }
+
+            if ($label === $this->lng->txt("unparticipate")) {
+                $btn = $this->ui_factory->button()->standard($label, $link)->withOnClick($modal->getShowSignal());
+            }
+
             $this->toolbar->addComponent($btn);
         }
     }
diff --git a/lang/ilias_de.lang b/lang/ilias_de.lang
index 514e3d4b3d78..3c9daaf3d58b 100644
--- a/lang/ilias_de.lang
+++ b/lang/ilias_de.lang
@@ -11218,7 +11218,7 @@ lso#:#table_online#:#Online
 lso#:#table_position#:#Position
 lso#:#table_sequence_content#:#Inhaltsverwaltung
 lso#:#table_title#:#Titel
-lso#:#unparticipate#:#Lernsequenz verlassen
+lso#:#unparticipate#:#Mitgliedschaft in der Lernsequenz beenden
 lti#:#act_lti_for_obj_type#:#LTI für diese Objekttypen aktivieren
 lti#:#activity_id#:#Activity-ID
 lti#:#activity_id_info#:#Diese Activity-ID wird vom LTI-Provider verwendet, um Statements zu identifizieren.