From eedb68d35f577e099ee8dbf8838474d4d71b5c8f Mon Sep 17 00:00:00 2001
From: Wuzzy <almikes@aol.com>
Date: Wed, 3 Aug 2016 22:34:48 +0200
Subject: Add support for category descriptions (as tooltips)

---
 init.lua | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'init.lua')

diff --git a/init.lua b/init.lua
index dd9474b..eb8bac3 100644
--- a/init.lua
+++ b/init.lua
@@ -172,8 +172,14 @@ function doc.formspec_main()
 	for c=1,#doc.data.category_order do
 		local id = doc.data.category_order[c]
 		local data = doc.data.categories[id]
+		-- Category buton
 		local button = "button[0,"..y..";3,1;doc_button_category_"..id..";"..minetest.formspec_escape(data.def.name).."]"
-		formstring = formstring .. button
+		local tooltip = ""
+		-- Optional description
+		if data.def.description ~= nil then
+			tooltip = "tooltip[doc_button_category_"..id..";"..minetest.formspec_escape(data.def.description).."]"
+		end
+		formstring = formstring .. button .. tooltip
 		y = y + 1
 	end
 	return formstring
-- 
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