From 8770b7df93e42beb9f717662620e509ca74487f7 Mon Sep 17 00:00:00 2001
From: Wuzzy <almikes@aol.com>
Date: Sun, 6 Nov 2016 02:28:45 +0100
Subject: [PATCH] Disable useless main buttons

---
 internal.lua | 25 +++++++++++++++++--------
 register.lua | 20 ++++++++++++++++++++
 2 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/internal.lua b/internal.lua
index 42ab722..f143355 100644
--- a/internal.lua
+++ b/internal.lua
@@ -107,14 +107,23 @@ function unified_inventory.get_formspec(player, page)
 		end
 
 		if def.type == "image" then
-			formspec[n] = "image_button["
-			formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
-			formspec[n+2] = ","..(ui_peruser.main_button_y + button_row * 0.7)..";0.8,0.8;"
-			formspec[n+3] = minetest.formspec_escape(def.image)..";"
-			formspec[n+4] = minetest.formspec_escape(def.name)..";]"
-			formspec[n+5] = "tooltip["..minetest.formspec_escape(def.name)
-			formspec[n+6] = ";"..(def.tooltip or "").."]"
-			n = n+7
+			if (def.condition == nil or def.condition(player) == true) then
+				formspec[n] = "image_button["
+				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
+				formspec[n+2] = ","..(ui_peruser.main_button_y + button_row * 0.7)..";0.8,0.8;"
+				formspec[n+3] = minetest.formspec_escape(def.image)..";"
+				formspec[n+4] = minetest.formspec_escape(def.name)..";]"
+				formspec[n+5] = "tooltip["..minetest.formspec_escape(def.name)
+				formspec[n+6] = ";"..(def.tooltip or "").."]"
+				n = n+7
+			else
+				formspec[n] = "image["
+				formspec[n+1] = ( ui_peruser.main_button_x + 0.65 * (i - 1) - button_col * 0.65 * 4)
+				formspec[n+2] = ","..(ui_peruser.main_button_y + button_row * 0.7)..";0.8,0.8;"
+				formspec[n+3] = minetest.formspec_escape(def.image).."^[colorize:#808080:alpha]"
+				n = n+4
+
+			end
 		end
 	end
 
diff --git a/register.lua b/register.lua
index ff38168..ce76f11 100644
--- a/register.lua
+++ b/register.lua
@@ -59,8 +59,12 @@ unified_inventory.register_button("home_gui_set", {
 		else
 			minetest.chat_send_player(player_name,
 				S("You don't have the \"home\" privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 		end
 	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {home=true})
+	end,
 })
 
 unified_inventory.register_button("home_gui_go", {
@@ -77,8 +81,12 @@ unified_inventory.register_button("home_gui_go", {
 		else
 			minetest.chat_send_player(player_name,
 				S("You don't have the \"home\" privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 		end
 	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {home=true})
+	end,
 })
 
 unified_inventory.register_button("misc_set_day", {
@@ -97,8 +105,12 @@ unified_inventory.register_button("misc_set_day", {
 		else
 			minetest.chat_send_player(player_name,
 				S("You don't have the settime privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 		end
 	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {settime=true})
+	end,
 })
 
 unified_inventory.register_button("misc_set_night", {
@@ -117,8 +129,12 @@ unified_inventory.register_button("misc_set_night", {
 		else
 			minetest.chat_send_player(player_name,
 					S("You don't have the settime privilege!"))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 		end
 	end,
+	condition = function(player)
+		return minetest.check_player_privs(player:get_player_name(), {settime=true})
+	end,
 })
 
 unified_inventory.register_button("clear_inv", {
@@ -133,6 +149,7 @@ unified_inventory.register_button("clear_inv", {
 					.." of creative mode to prevent"
 					.." accidental inventory trashing."
 					.."\nUse the trash slot instead."))
+			unified_inventory.set_inventory_formspec(player, unified_inventory.current_page[player_name])
 			return
 		end
 		player:get_inventory():set_list("main", {})
@@ -140,6 +157,9 @@ unified_inventory.register_button("clear_inv", {
 		minetest.sound_play("trash_all",
 				{to_player=player_name, gain = 1.0})
 	end,
+	condition = function(player)
+		return unified_inventory.is_creative(player:get_player_name())
+	end,
 })
 
 unified_inventory.register_page("craft", {