From d907fe48f7314bdae7ac3e8460c402a6187d731b Mon Sep 17 00:00:00 2001
From: ArthurSonzogni <sonzogniarthur@gmail.com>
Date: Wed, 25 Dec 2024 19:19:37 +0100
Subject: [PATCH] Fix bug with "flex" element not settings their box.

---
 src/ftxui/component/container.cpp | 3 ++-
 src/ftxui/dom/flex.cpp            | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ftxui/component/container.cpp b/src/ftxui/component/container.cpp
index 1948a47d9..410bb9f5c 100644
--- a/src/ftxui/component/container.cpp
+++ b/src/ftxui/component/container.cpp
@@ -163,6 +163,7 @@ class VerticalContainer : public ContainerBase {
       return false;
     }
 
+    int old_selected = *selector_;
     if (event.mouse().button == Mouse::WheelUp) {
       MoveSelector(-1);
     }
@@ -171,7 +172,7 @@ class VerticalContainer : public ContainerBase {
     }
     *selector_ = std::max(0, std::min(int(children_.size()) - 1, *selector_));
 
-    return true;
+    return old_selected != *selector_;
   }
 
   Box box_;
diff --git a/src/ftxui/dom/flex.cpp b/src/ftxui/dom/flex.cpp
index 2fd3adf67..b6f95c6e6 100644
--- a/src/ftxui/dom/flex.cpp
+++ b/src/ftxui/dom/flex.cpp
@@ -80,6 +80,7 @@ class Flex : public Node {
   }
 
   void SetBox(Box box) override {
+    Node::SetBox(box);
     if (children_.empty()) {
       return;
     }