Maelstrom: Hide the dropdown if it's disabled

SDL Commits
1

https://github.com/libsdl-org/Maelstrom/commit/1c09a16ca201618e62919b8bb7f64fa8ea793cfe

From 1c09a16ca201618e62919b8bb7f64fa8ea793cfe Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Sat, 5 Jan 2013 17:17:10 -0800
Subject: [PATCH] Hide the dropdown if it's disabled

---
 screenlib/UIElementDropdown.cpp | 9 +++++++++
 screenlib/UIElementDropdown.h   | 1 +
 2 files changed, 10 insertions(+)

diff --git a/screenlib/UIElementDropdown.cpp b/screenlib/UIElementDropdown.cpp
index 3b158a5a..81d5973f 100644
--- a/screenlib/UIElementDropdown.cpp
+++ b/screenlib/UIElementDropdown.cpp
@@ -71,6 +71,15 @@ UIElementDropdown::Action(UIBaseElement *sender, const char *action)
 	UIElementButton::Action(sender, action);
 }
 
+void
+UIElementDropdown::UpdateDisabledState()
+{
+	// Hide the dropdown when we are disabled
+	HideElements();
+
+	UIElementButton::UpdateDisabledState();
+}
+
 void
 UIElementDropdown::OnClick()
 {
diff --git a/screenlib/UIElementDropdown.h b/screenlib/UIElementDropdown.h
index 850b4b8b..cb083777 100644
--- a/screenlib/UIElementDropdown.h
+++ b/screenlib/UIElementDropdown.h
@@ -36,6 +36,7 @@ DECLARE_TYPESAFE_CLASS(UIElementButton)
 
 	override bool HandleEvent(const SDL_Event &event);
 	override void Action(UIBaseElement *sender, const char *action);
+	override void UpdateDisabledState();
 	override void OnClick();
 
 	void ShowElements();