buttons for selectively hiding recipe types

.gitignore

@@ -1,2 +1,2 @@
 *~
-
+.idea

callbacks.lua

@@ -25,6 +25,7 @@ core.register_on_joinplayer(function(player)
 	unified_inventory.alternate[player_name] = 1
 	unified_inventory.current_item[player_name] = nil
 	unified_inventory.current_craft_direction[player_name] = "recipe"
+	unified_inventory.current_craft_type_toggles[player_name] = {} -- values are reversed, false means true (so that nil means true)
 
 	-- Refill slot
 	local refill = core.create_detached_inventory(player_name.."refill", {
@@ -88,6 +89,21 @@ local function receive_fields_searchbox(player, formname, fields)
 	end
 end
 
+local function craftguide_toggle_recipe_type_visibility(player, field_name)
+	local player_name = player:get_player_name()
+	local toggled_recipe_type = field_name:match("craftguide_toggle_recipe_type_visibility_(.*)")
+
+	local toggles = ui.current_craft_type_toggles[player_name]
+	if toggled_recipe_type == "all" then
+		local all_state = toggles.all
+		for recipe_type in pairs(ui.current_visible_craft_type_toggles[player_name]) do
+			toggles[recipe_type] = not all_state
+		end
+	else
+		toggles[toggled_recipe_type] = not toggles[toggled_recipe_type]
+	end
+end
+
 core.register_on_player_receive_fields(function(player, formname, fields)
 	if formname ~= "" then
 		return
@@ -99,6 +115,16 @@ core.register_on_player_receive_fields(function(player, formname, fields)
 
 	local ui_peruser, _ = unified_inventory.get_per_player_formspec(player_name)
 
+	for name in pairs(fields) do
+		if name:match("craftguide_toggle_recipe_type_visibility_") then
+			craftguide_toggle_recipe_type_visibility(player, name)
+			unified_inventory.alternate[player_name] = 1
+			unified_inventory.set_inventory_formspec(player,
+					unified_inventory.current_page[player_name])
+			return
+		end
+	end
+
 	local clicked_category
 	for _, cat in ipairs(ui.category_list) do
 		if fields["category_" .. cat.name] then
@@ -252,6 +278,14 @@ core.register_on_player_receive_fields(function(player, formname, fields)
 	end
 	local crafts = ui.crafts_for[ui.current_craft_direction[
 		player_name]][selected_item:get_name()] or {}
+	local toggles = ui.current_craft_type_toggles[player_name]
+	local filtered_crafts = {}
+	for _, craft in ipairs(crafts) do
+		if not toggles[craft.type] then
+			table.insert(filtered_crafts, craft)
+		end
+	end
+	crafts = filtered_crafts
 	if #crafts <= 1 then
 		return
 	end

init.lua

@@ -20,6 +20,8 @@ unified_inventory = {
 	current_index = {},
 	current_item = {},
 	current_craft_direction = {},
+	current_visible_craft_type_toggles = {},
+	current_craft_type_toggles = {}, -- values are reversed, so false means true (so that nil means true)
 	registered_craft_types = {},
 	crafts_for = {usage = {}, recipe = {} },
 	players = {},

locale/template.pot

@@ -263,6 +263,10 @@ msgstr ""
 msgid "All"
 msgstr ""
 
+#: register.lua
+msgid "Show recipe types:"
+msgstr ""
+
 #: waypoints.lua
 msgid "White"
 msgstr ""

locale/template.txt

@@ -91,3 +91,4 @@ Finish editing=
 World position=
 Name=
 HUD text color=
+Show recipe types:

register.lua

@@ -272,12 +272,6 @@ ui.register_page("craftguide", {
 
 		local dir = ui.current_craft_direction[player_name]
 		local crafts = ui.crafts_for[dir][item_name]
-		local alternate = ui.alternate[player_name]
-		local alternates, craft
-		if crafts and #crafts > 0 then
-			alternates = #crafts
-			craft = crafts[alternate]
-		end
 		local has_give = player_privs.give or ui.is_creative(player_name)
 
 		local n = #formspec + 1
@@ -298,6 +292,68 @@ ui.register_page("craftguide", {
 				"button[" .. (give_x + 1.6) .. "," .. (craftguidey + 2.9) .. ";0.75,0.5;craftguide_giveme_99;99]"
 		end
 
+		if crafts then
+			local found_recipe_types = {}
+			for _, craft in ipairs(crafts) do
+				found_recipe_types[craft.type] = true
+			end
+
+			ui.current_visible_craft_type_toggles[player_name] = found_recipe_types
+
+			local buttonx = give_x
+			local buttony = craftguidey + 3.9
+			local button_size = 0.5
+			local button_spacing = 0.25
+			local button_interval = button_size + button_spacing
+			local allbuttonx = buttonx
+			local allbutton_width = button_size * 3/2
+			buttonx = buttonx + allbutton_width + button_spacing
+
+			formspec[n] = ("label[%f,%f;%s]"):format(allbuttonx + 0.1, buttony - 0.2, F(S("Show recipe types:")))
+			n = n + 1
+
+			local has_any = true
+
+			local toggles = ui.current_craft_type_toggles[player_name]
+			local type_i = 0
+			for recipe_type in pairs(found_recipe_types) do
+				local inactive = toggles[recipe_type]
+				if inactive then has_any = false end
+				local def = ui.registered_craft_types[recipe_type]
+				formspec[n] = ("style[craftguide_toggle_recipe_type_visibility_%s;bgcolor=#%s;bgimg=%s]")
+						:format(recipe_type, inactive and "808080" or "ffffff", def.icon)
+				formspec[n+1] = ("button[%f,%f;%f,%f;craftguide_toggle_recipe_type_visibility_%s;]")
+						:format(buttonx, buttony, button_size, button_size, recipe_type)
+				formspec[n+2] = ("tooltip[craftguide_toggle_recipe_type_visibility_%s;%s]")
+						:format(recipe_type, def.description)
+				n = n + 3
+				type_i = type_i + 1
+				buttonx = buttonx + button_interval
+			end
+			toggles.all = not has_any
+
+			formspec[n] = ("style[craftguide_toggle_recipe_type_visibility_%s;bgcolor=#%s;textcolor=#%s]")
+					:format("all", has_any and "3e3e3e" or "000000", has_any and "ffffff" or "808080")
+			formspec[n+1] = ("button[%f,%f;%f,%f;craftguide_toggle_recipe_type_visibility_%s;%s]")
+					:format(allbuttonx, buttony, allbutton_width, button_size, "all", F(S("All")))
+			n = n + 2
+
+			local filtered_crafts = {}
+			for _, craft in ipairs(crafts) do
+				if not toggles[craft.type] then
+					table.insert(filtered_crafts, craft)
+				end
+			end
+			crafts = filtered_crafts
+		end
+
+		local alternate = ui.alternate[player_name]
+		local alternates, craft
+		if crafts and #crafts > 0 then
+			alternates = #crafts
+			craft = crafts[alternate]
+		end
+
 		if not craft then
 			-- No craft recipes available for this item.
 			formspec[n] = string.format("label[%f,%f;%s]", craftguidex+2.5, craftguidey+1.5, F(no_recipe_text[dir]))