From 23ab763be03ff28fbbdae9fda79c24821385f93e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jonas=20=C3=85dahl?= <jadahl@gmail.com>
Date: Thu, 19 Dec 2024 00:44:40 +0100
Subject: [PATCH] gdctl: Add None friendly named enum helper to create from
 string

If the string is None, don't create a named enum instance.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/4192>
---
 tools/gdctl | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/gdctl b/tools/gdctl
index bd8df818e..5bd5b3236 100755
--- a/tools/gdctl
+++ b/tools/gdctl
@@ -28,6 +28,17 @@ class NamedEnum(Enum):
             if string == enum_string
         )
 
+    @classmethod
+    def maybe_from_string(cls, string):
+        if string:
+            return next(
+                enum
+                for enum, enum_string in cls.enum_names()
+                if string == enum_string
+            )
+        else:
+            return None
+
 
 class Transform(NamedEnum):
     NORMAL = 0