Add list of druid instances, add global events: on_window_callback, on_layout_change and on_language_change

druid/druid.lua

@@ -22,6 +22,17 @@ local default_style = require("druid.styles.default.style")
 
 local M = {}
 
+local _instances = {}
+
+local function get_druid_instances()
+	for i = #_instances, 1, -1 do
+		if _instances[i]._deleted then
+			table.remove(_instances, i)
+		end
+	end
+
+	return _instances
+end
 
 --- Register external druid component.
 -- After register you can create the component with
@@ -47,11 +58,14 @@ function M.new(context, style)
 	if settings.default_style == nil then
 		M.set_default_style(default_style)
 	end
-	return druid_instance(context, style)
+
+	local new_instance = druid_instance(context, style)
+	table.insert(_instances, new_instance)
+	return new_instance
 end
 
 
--- Set new default style.
+--- Set new default style.
 -- @function druid.set_default_style
 -- @tparam table style Druid style module
 function M.set_default_style(style)
@@ -59,7 +73,7 @@ function M.set_default_style(style)
 end
 
 
--- Set text function.
+--- Set text function.
 -- Druid locale component will call this function
 -- to get translated text. After set_text_funtion
 -- all existing locale component will be updated
@@ -72,7 +86,7 @@ function M.set_text_function(callback)
 end
 
 
--- Set sound function.
+--- Set sound function.
 -- Component will call this function to
 -- play sound by sound_id
 -- @function druid.set_sound_function
@@ -82,4 +96,48 @@ function M.set_sound_function(callback)
 end
 
 
+--- Callback on global window event.
+-- Used to trigger on_focus_lost and on_focus_gain
+-- @function druid.on_window_callback
+-- @tparam string event Event param from window listener
+-- @tparam table data Data param from window listener
+function M.on_window_callback(event)
+	local instances = get_druid_instances()
+
+	if event == window.WINDOW_EVENT_FOCUS_LOST then
+		for i = 1, #instances do
+			msg.post(instances[i].url, const.ON_FOCUS_LOST)
+		end
+	end
+
+	if event == window.WINDOW_EVENT_FOCUS_GAINED then
+		for i = 1, #instances do
+			msg.post(instances[i].url, const.ON_FOCUS_GAINED)
+		end
+	end
+end
+
+
+--- Callback on global layout change event.
+-- @function druid.on_layout_change
+function M.on_layout_change()
+	local instances = get_druid_instances()
+
+	for i = 1, #instances do
+		msg.post(instances[i].url, const.ON_LAYOUT_CHANGE)
+	end
+end
+
+
+--- Callback on global language change event.
+-- Used to update all lang texts
+-- @function druid.on_language_change
+function M.on_language_change()
+	local instances = get_druid_instances()
+
+	for i = 1, #instances do
+		msg.post(instances[i].url, const.ON_LANGUAGE_CHANGE)
+	end
+end
+
 return M

druid/system/druid_instance.lua

@@ -111,6 +111,8 @@ end
 function Druid.initialize(self, context, style)
 	self._context = context
 	self._style = style or settings.default_style
+	self._deleted = false
+	self.url = msg.url()
 	self.components = {}
 end
 
@@ -141,6 +143,8 @@ function Druid.final(self)
 			components[i]:on_remove()
 		end
 	end
+
+	self._deleted = true
 end
 
 
@@ -231,6 +235,45 @@ function Druid.on_message(self, message_id, message, sender)
 end
 
 
+function Druid.on_focus_lost(self)
+	local components = self.components[const.ON_FOCUS_LOST]
+	if components then
+		for i = 1, #components do
+			components[i]:on_focus_lost()
+		end
+	end
+end
+
+function Druid.on_focus_gained(self)
+	local components = self.components[const.ON_FOCUS_GAINED]
+	if components then
+		for i = 1, #components do
+			components[i]:on_focus_gained()
+		end
+	end
+end
+
+
+function Druid.on_layout_change(self)
+	local components = self.components[const.ON_LAYOUT_CHANGE]
+	if components then
+		for i = 1, #components do
+			components[i]:on_layout_change()
+		end
+	end
+end
+
+
+function Druid.on_language_change(self)
+	local components = self.components[const.ON_LANGUAGE_CHANGE]
+	if components then
+		for i = 1, #components do
+			components[i]:on_language_change()
+		end
+	end
+end
+
+
 --- Create button basic component
 -- @function druid:new_button
 -- @tparam args ... button init args

example/gui/main/main.gui_script

@@ -51,10 +51,17 @@ local function init_swipe_control(self)
 end
 
 
+local function on_window_callback(self, event, data)
+	druid.on_window_callback(event, data)
+end
+
+
 function init(self)
 	druid.set_default_style(default_style)
 	self.druid = druid.new(self)
 
+	window.set_listener(on_window_callback)
+
 	init_top_panel(self)
 	init_swipe_control(self)
 	self.page = 1

example/init.script

@@ -1,5 +1,4 @@
 local druid = require("druid.druid")
-local const = require("druid.const")
 local lang = require("example.lang")
 
 
@@ -12,9 +11,7 @@ local function setup_druid()
 		return lang.get_locale(lang_id)
 	end)
 
-	-- TODO: Call druid.finish_setup?
+	druid.on_language_change()
-	-- Need to update all gui, in case, when gui init was befure this init
-	msg.post("/gui#main", const.ON_CHANGE_LANGUAGE)
 end
 
 

example/lang.lua

@@ -1,4 +1,4 @@
-local const = require("druid.const")
+local druid = require("druid.druid")
 
 local M = {}
 
@@ -47,7 +47,7 @@ end
 
 function M.toggle_locale()
 	data = data == en and ru or en
-	msg.post("/gui#main", const.ON_CHANGE_LANGUAGE)
+	druid.on_language_change()
 end
 
 return M