custom help files + redo System UI

sys/apps/system/label.lua

@@ -0,0 +1,49 @@
+local UI   = require('ui')
+local Util = require('util')
+
+local fs   = _G.fs
+local os   = _G.os
+
+local labelTab = UI.Window {
+	tabTitle = 'Label',
+	description = 'Set the computer label',
+	labelText = UI.Text {
+		x = 3, y = 2,
+		value = 'Label'
+	},
+	label = UI.TextEntry {
+		x = 9, y = 2, ex = -4,
+		limit = 32,
+		value = os.getComputerLabel(),
+		accelerators = {
+			enter = 'update_label',
+		},
+	},
+	grid = UI.ScrollingGrid {
+		y = 3,
+		values = {
+			{ name = '',  value = ''                  },
+			{ name = 'CC version',  value = Util.getVersion()                  },
+			{ name = 'Lua version', value = _VERSION                           },
+			{ name = 'MC version',  value = Util.getMinecraftVersion()         },
+			{ name = 'Disk free',   value = Util.toBytes(fs.getFreeSpace('/')) },
+			{ name = 'Computer ID', value = tostring(os.getComputerID())       },
+			{ name = 'Day',         value = tostring(os.day())                 },
+		},
+		inactive = true,
+		columns = {
+			{ key = 'name',  width = 12 },
+			{ key = 'value' },
+		},
+	},
+}
+
+function labelTab:eventHandler(event)
+	if event.type == 'update_label' then
+		os.setComputerLabel(self.label.value)
+		self:emit({ type = 'success_message', message = 'Label updated' })
+		return true
+	end
+end
+
+return labelTab