From 568abec9c267d072b03f3fbb27b4bda33307f244 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 28 Feb 2021 00:25:45 +0800
Subject: ...

---
 src/ui/render/ScrollBar.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'src/ui/render')

diff --git a/src/ui/render/ScrollBar.cpp b/src/ui/render/ScrollBar.cpp
index 6096ab63..70255752 100644
--- a/src/ui/render/ScrollBar.cpp
+++ b/src/ui/render/ScrollBar.cpp
@@ -46,8 +46,16 @@ ScrollBar::ScrollBar(gsl::not_null<ScrollRenderObject*> render_object,
 }
 
 void ScrollBar::SetEnabled(bool value) {
-  CRU_UNUSED(value)
-  // TODO: Implement this.
+  if (value == is_enabled_) return;
+  if (!value) {
+    SetExpanded(false);
+    if (move_thumb_start_) {
+      if (const auto control = this->render_object_->GetAttachedControl()) {
+        control->ReleaseMouse();
+      }
+      move_thumb_start_ = std::nullopt;
+    }
+  }
 }
 
 void ScrollBar::SetExpanded(bool value) {
-- 
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