custom help files + redo System UI

sys/apps/system/path.lua

@@ -0,0 +1,50 @@
+local Config = require('config')
+local UI     = require('ui')
+local Util   = require('util')
+
+local shell  = _ENV.shell
+
+local pathTab = UI.Window {
+	tabTitle = 'Path',
+	description = 'Set the shell path',
+	tabClose = true,
+	entry = UI.TextEntry {
+		x = 2, y = 2, ex = -2,
+		limit = 256,
+		value = shell.path(),
+		shadowText = 'enter system path',
+		accelerators = {
+			enter = 'update_path',
+		},
+	},
+	grid = UI.Grid {
+		y = 4,
+		disableHeader = true,
+		columns = { { key = 'value' } },
+		autospace = true,
+	},
+}
+
+function pathTab.grid:draw()
+	self.values = { }
+	local env = Config.load('shell')
+	for _,v in ipairs(Util.split(env.path, '(.-):')) do
+		table.insert(self.values, { value = v })
+	end
+	self:update()
+	UI.Grid.draw(self)
+end
+
+function pathTab:eventHandler(event)
+	if event.type == 'update_path' then
+		local env = Config.load('shell')
+		env.path = self.entry.value
+		self.grid:setIndex(self.grid:getIndex())
+		self.grid:draw()
+		Config.update('shell', env)
+		self:emit({ type = 'success_message', message = 'reboot to take effect' })
+		return true
+	end
+end
+
+return pathTab