remove dependency on device global

sys/apis/ui.lua

@@ -8,7 +8,6 @@ local Util       = require('util')
 local _rep       = string.rep
 local _sub       = string.sub
 local colors     = _G.colors
-local device     = _G.device
 local fs         = _G.fs
 local os         = _G.os
 local peripheral = _G.peripheral
@@ -914,9 +913,9 @@ UI.Device.defaults = {
 function UI.Device:postInit()
 	self.device = self.device or term.current()
 
-	if self.deviceType then
-		self.device = device[self.deviceType]
-	end
+	--if self.deviceType then
+	--	self.device = device[self.deviceType]
+	--end
 
 	if not self.device.setTextScale then
 		self.device.setTextScale = function() end
@@ -1197,6 +1196,7 @@ end
 
 loadComponents()
 
+UI.theme = { }
 UI:loadTheme('usr/config/ui.theme')
 if Util.getVersion() >= 1.76 then
 	UI:loadTheme('sys/etc/ext.theme')

sys/apis/util.lua

@@ -404,6 +404,10 @@ function Util.readFile(fname)
 	end
 end
 
+function Util.backupFile(fname)
+	fs.copy(fname, fname .. '.bak')
+end
+
 function Util.writeFile(fname, data)
 	if not fname or not data then error('Util.writeFile: invalid parameters', 2) end
 	local file = io.open(fname, "w")

sys/apps/system/kiosk.lua

@@ -1,7 +1,6 @@
 local UI = require('ui')
 
 local colors     = _G.colors
-local device     = _G.device
 local peripheral = _G.peripheral
 local settings   = _G.settings
 
@@ -34,11 +33,9 @@ local tab = UI.Tab {
 function tab:enable()
 	local choices = {	}
 
-	for _,v in pairs(device) do
-		if v.type == 'monitor' then
-			table.insert(choices, { name = v.side, value = v.side })
-		end
-	end
+	peripheral.find('monitor', function(side)
+		table.insert(choices, { name = side, value = side })
+	end)
 
 	self.form.monitor.choices = choices
 	self.form.monitor.value = settings.get('kiosk.monitor')