Description

tp_smapi interface and widget creator.

local tp_smapi = lain.widget.contrib.tp_smapi(apipath)

The argument apipath is an optional string which defines the API path. Its default value is "/sys/devices/platform/smapi".

Functions

tp_smapi.get(batid, feature)

Gets the feature of battery batid. Returns a string. The list of available features is available at this page.

tp_smapi.installed(batid)

Checks if battery batid is installed. Returns a boolean.

tp_smapi.status(batid)

Gets the status of battery batid. Returns a string ("charging", "discharging", or "full").

tp_smapi.percentage(batid)

Gets the percentage of battery batid. Returns a numeric string.

tp_smapi.time(batid)

Gets the time of battery batid. Depending on the current status, it can be either running or charging time. Returns a string of the format HH:MM.

tp_smapi.hide()

Removes any notification spawned by tp_smapi.show.

tp_smapi.show(batid, seconds, scr)

Notifies the current information of battery batid for seconds seconds on screen scr. The argument scr is optional, and if missing, the notification will be displayed on the currently focused screen.

tp_smapi.create_widget(args)

Creates a lain widget of the available ThinkPad batteries.

local tpbat = tp_smapi.create_widget()

Input table

Variable	Meaning	Type	Default
`widget`	The widget type to use	`wibox.widget`	`wibox.widget.textbox`
`timeout`	Refresh timeout (in seconds)	integer	30
`pspath`	Power supply directory path	string	"/sys/class/power_supply/"
`battery`	Single battery id	string	autodetected
`batteries`	Multiple batteries id table	table of strings	autodetected
`settings`	User settings	function	empty function
`widget`	Widget to render	function	`wibox.widget.textbox`

The widget will try to autodetect battery and batteries. If something goes wrong, you will have to define them manually. In that case, you only have to define one between battery and batteries. If you have one battery, you can either use args.battery = "BAT*" or args.batteries = {"BAT*"}, where BAT* is the identifier of your battery in pspath (do not use it as a wildcard). Of course, if you have multiple batteries, you need to use the latter option.

If you define pspath, be sure to not forget the final slash (/).

settings can use the tpbat_now table, which contains the following strings:

status, general status ("N/A", "discharging", "charging", "full");
n_status[i], i-th battery status (like above);
n_perc[i], i-th battery charge percentage (like above);
n_time[i], i-th battery running or charging time (HH:MM string or "N/A");

n_time[i] is the running time of battery i when it is discharging, and the charging time otherwise.

Output table

Variable	Meaning	Type
`widget`	The widget	`wibox.widget`
`batteries`	Battery identifiers	Table of strings
`update`	Update `widget`	function
`timer`	The widget timer	`gears.timer`

The update function can be used to refresh the widget before timeout expires.

Usage example

local tp_smapi = lain.widget.contrib.tp_smapi()
local bat = tp_smapi.create_widget {
  battery  = "BAT0",
  settings = function()
    widget:set_markup(tpbat_now.n_perc[1] .. "%")
  end
}

bat.widget:connect_signal("mouse::enter", function () tp_smapi.show("BAT0") end)
bat.widget:connect_signal("mouse::leave", function () tp_smapi.hide() end)

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