Zeti_1223andGitHub
1cdbaba5e7
* thinkpad-led * Update en.json * Update README with widget information * PR fixes * fix PR
102 lines
2.5 KiB
Luau
102 lines
2.5 KiB
Luau
--!nonstrict
|
|
-- ThinkPad lid logo LED — bar widget
|
|
-- A red dot in the bar that directly controls the /sys/class/leds/tpacpi::lid_logo_dot LED.
|
|
-- Left click : toggle on / off
|
|
|
|
local LED_PATH = "/sys/class/leds/tpacpi::lid_logo_dot/brightness"
|
|
|
|
-- Tri-state: true = on, false = off, nil = unknown (path missing, unreadable, etc).
|
|
local ledOn = nil
|
|
local pending = false -- true while a toggle write is in flight
|
|
local writeFailed = false -- true if the last write attempt did not succeed
|
|
|
|
-- Reads the LED brightness straight from sysfs instead of trusting any cached
|
|
-- guess. Returns nil when the file can't be read (missing device, no
|
|
-- permissions, etc), which the UI renders as an "unavailable" state.
|
|
local function readLedState()
|
|
local contents = noctalia.readFile(LED_PATH)
|
|
if not contents then
|
|
return nil
|
|
end
|
|
local value = tonumber((contents:gsub("%s+", "")))
|
|
if not value then
|
|
return nil
|
|
end
|
|
return value > 0
|
|
end
|
|
|
|
local function statusColor()
|
|
if ledOn then
|
|
return "error"
|
|
else
|
|
return "outline"
|
|
end
|
|
end
|
|
|
|
local function render()
|
|
barWidget.render(ui.box({
|
|
width = 10,
|
|
height = 10,
|
|
radius = 5,
|
|
fill = statusColor(),
|
|
border = "outline",
|
|
borderWidth = 1,
|
|
}))
|
|
|
|
if ledOn == nil then
|
|
barWidget.setTooltip("ThinkPad LED: unavailable (check permissions on " .. LED_PATH .. ")")
|
|
elseif pending then
|
|
barWidget.setTooltip("ThinkPad LED: updating…")
|
|
elseif writeFailed then
|
|
barWidget.setTooltip("ThinkPad LED: last toggle failed (permission denied?)")
|
|
elseif ledOn then
|
|
barWidget.setTooltip("ThinkPad LED: ON (Left click: turn off)")
|
|
else
|
|
barWidget.setTooltip("ThinkPad LED: OFF (Left click: turn on)")
|
|
end
|
|
end
|
|
|
|
function update()
|
|
if not pending then
|
|
ledOn = readLedState()
|
|
end
|
|
render()
|
|
end
|
|
|
|
function onClick()
|
|
if pending then
|
|
return
|
|
end
|
|
|
|
-- Toggle off the actual hardware state, not a guessed one.
|
|
local current = readLedState()
|
|
if current == nil then
|
|
ledOn = nil
|
|
render()
|
|
return
|
|
end
|
|
|
|
local target = not current
|
|
local val = target and "255" or "0"
|
|
|
|
pending = true
|
|
writeFailed = false
|
|
render()
|
|
|
|
local started = noctalia.runAsync(`sh -c "echo {val} > {LED_PATH}"`, function(result)
|
|
pending = false
|
|
writeFailed = result.exitCode ~= 0
|
|
-- Trust the hardware over the write result: read the brightness back
|
|
-- rather than assuming the echo did what we asked.
|
|
ledOn = readLedState()
|
|
render()
|
|
end)
|
|
|
|
if not started then
|
|
pending = false
|
|
writeFailed = true
|
|
ledOn = readLedState()
|
|
render()
|
|
end
|
|
end
|