Update component docs

druid/base/radio_group.lua

@@ -1,6 +1,15 @@
 --- Radio group module
 -- @module druid.radio_group
 
+--- Component events
+-- @table Events
+-- @tfield druid_event on_radio_click On any checkbox click
+
+--- Component fields
+-- @table Fields
+-- @tfield table checkboxes Array of checkbox components
+
+local Event = require("druid.event")
 local component = require("druid.component")
 
 local M = component.create("radio_group")
@@ -11,17 +20,43 @@ local function on_checkbox_click(self, index)
 		self.checkboxes[i]:set_state(i == index, true)
 	end
 
-	if self.callback then
-		self.callback(self:get_context(), index)
+	self.on_radio_click:trigger(self:get_context(), index)
+end
+
+
+--- Component init function
+-- @function radio_group:init
+-- @tparam node[] node Array of gui node
+-- @tparam function callback Radio callback
+-- @tparam[opt=node] node[] click node Array of trigger nodes, by default equals to nodes
+function M.init(self, nodes, callback, click_nodes)
+	self.druid = self:get_druid()
+	self.checkboxes = {}
+
+	self.on_radio_click = Event(callback)
+
+	for i = 1, #nodes do
+		local click_node = click_nodes and click_nodes[i] or nil
+		local checkbox = self.druid:new_checkbox(nodes[i], function()
+			on_checkbox_click(self, i)
+		end, click_node)
+
+		table.insert(self.checkboxes, checkbox)
 	end
 end
 
 
+--- Set radio group state
+-- @function radio_group:set_state
+-- @tparam bool[] state Array of checkbox state
 function M.set_state(self, index)
 	on_checkbox_click(self, index)
 end
 
 
+--- Return radio group state
+-- @function radio_group:get_state
+-- @treturn bool[] Array if checkboxes state
 function M.get_state(self)
 	local result = -1
 
@@ -36,20 +71,4 @@ function M.get_state(self)
 end
 
 
-function M.init(self, nodes, callback, click_nodes)
-	self.druid = self:get_druid()
-	self.checkboxes = {}
-	self.callback = callback
-
-	for i = 1, #nodes do
-		local click_node = click_nodes and click_nodes[i] or nil
-		local checkbox = self.druid:new_checkbox(nodes[i], function()
-			on_checkbox_click(self, i)
-		end, click_node)
-
-		table.insert(self.checkboxes, checkbox)
-	end
-end
-
-
 return M