moved doc integration to doc_addon.lua. Added doc button on survival page

cache.lua

@@ -1,4 +1,5 @@
 local filter = smart_inventory.filter
+local doc_addon = smart_inventory.doc_addon
 
 local cache = {}
 cache.cgroups = {}
@@ -249,7 +250,7 @@ function cache.get_recipes_craftable_atnext(player, item)
 					for recipe_item, itemtab in pairs(cache.crecipes[recipe].recipe_items) do
 						recipe_ok = false
 						for _, itemname in ipairs(itemtab) do
-							if filter.is_revealed_item(itemname, player) == true then
+							if doc_addon.is_revealed_item(itemname, player) == true then
 								recipe_ok = true
 								break
 							end

crafting.lua

@@ -1,5 +1,5 @@
 local cache = smart_inventory.cache
-local filter = smart_inventory.filter
+local doc_addon = smart_inventory.doc_addon
 local ui_tools = smart_inventory.ui_tools
 
 -----------------------------------------------------
@@ -39,7 +39,7 @@ local function update_preview(state)
 					if state.param.crafting_items_in_inventory[item_in_list.name] then
 						item = item_in_list.name
 						break
-					elseif filter.is_revealed_item(item_in_list.name, player) then
+					elseif doc_addon.is_revealed_item(item_in_list.name, player) then
 						item = item_in_list.name
 					elseif item == nil then
 						item = item_in_list.name
@@ -304,6 +304,22 @@ local function crafting_callback(state)
 	smart_inventory.smartfs_elements.craft_preview(state, 6, 0, "craft_preview")
 	inf_state:label(6.7,3,"cr_type", "")
 	inf_state:item_image(10.2,0.3, 1, 1, "craft_result",nil):setVisible(false)
+
+	if smart_inventory.doc_items_mod then
+		local doc_btn = inf_state:item_image_button(10.2,2.3, 1, 1, "doc_btn","", "doc_identifier:identifier_solid")
+		doc_btn:setVisible(true)
+		doc_btn:onClick(function(self, state, player)
+			local outitem = state:get("craft_result"):getImage()
+			if outitem then
+				outitem:gsub("[^%s]+", function(z)
+					if minetest.registered_items[z] then
+						doc_addon.show(z, player)
+					end
+				end)
+			end
+		end)
+	end
+
 	inf_area:setVisible(false)
 
 	local pr_prev_btn = state:button(6, 3, 1, 0.5, "preview_prev", "<<")

doc_addon.lua

@@ -0,0 +1,60 @@
+local filter = smart_inventory.filter
+local doc_addon = {}
+
+function doc_addon.is_revealed_item(itemname, playername)
+	local cache = smart_inventory.cache
+	if minetest.registered_items[itemname] == nil then
+		return false
+	end
+
+	if smart_inventory.doc_items_mod then
+		local category_id
+		if not cache.citems[itemname] then
+			-- not in creative or something like
+			return false
+		else
+			for _, group in pairs(cache.citems[itemname].cgroups) do
+				if group.name == "type:node" then
+					category_id = "nodes"
+				elseif group.name == "type:tool" then
+					category_id = "tools"
+				elseif group.name == "type:craft" then
+					category_id = "craftitems"
+				end
+			end
+			if category_id then
+				return doc.entry_revealed(playername, category_id, itemname)
+			else
+				-- unknown item
+				return false
+			end
+		end
+	end
+	return true
+end
+
+
+function doc_addon.show(itemname, playername)
+	local cache = smart_inventory.cache
+	if smart_inventory.doc_items_mod then
+		local category_id
+		if cache.citems[itemname] then
+			for _, group in pairs(cache.citems[itemname].cgroups) do
+				if group.name == "type:node" then
+					category_id = "nodes"
+				elseif group.name == "type:tool" then
+					category_id = "tools"
+				elseif group.name == "type:craft" then
+					category_id = "craftitems"
+				end
+			end
+			if category_id then
+				doc.show_entry(playername, category_id, itemname, true)
+			end
+		end
+	end
+	return true
+end
+
+-------------------------
+return doc_addon

filter.lua

@@ -23,38 +23,6 @@ function filter.register_filter(def)
 	filter.registered_filter[self.name] = self
 end
 
-function filter.is_revealed_item(itemname, playername)
-	local cache = smart_inventory.cache
-	if minetest.registered_items[itemname] == nil then
-		return false
-	end
-
-	if smart_inventory.doc_items_mod then
-		local category_id
-		if not cache.citems[itemname] then
-			-- not in creative or something like
-			return false
-		else
-			for _, group in pairs(cache.citems[itemname].cgroups) do
-				if group.name == "type:node" then
-					category_id = "nodes"
-				elseif group.name == "type:tool" then
-					category_id = "tools"
-				elseif group.name == "type:craft" then
-					category_id = "craftitems"
-				end
-			end
-			if category_id then
-				return doc.entry_revealed(playername, category_id, itemname)
-			else
-				-- unknown item
-				return false
-			end
-		end
-	end
-	return true
-end
-
 filter.register_filter({
 		name = "transluc",
 		shortdesc = "Translucent blocks",

init.lua

@@ -127,6 +127,7 @@ end
 
 -- build up caches
 smart_inventory.filter = dofile(modpath.."/filter.lua")
+smart_inventory.doc_addon = dofile(modpath.."/doc_addon.lua")
 smart_inventory.cache = dofile(modpath.."/cache.lua")
 smart_inventory.ui_tools = dofile(modpath.."/ui_tools.lua")