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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/battery-power-management/README.md b/battery-power-management/README.md new file mode 100644 index 00000000..f0c23b9b --- /dev/null +++ b/battery-power-management/README.md @@ -0,0 +1,104 @@ +# Battery & Power Management + +A battery status widget and control panel for **Noctalia v5**. The bar widget +shows charge percentage, live power draw in watts, and the active power profile. +Clicking it opens a panel to switch the system power profile and set the battery +charge-stop threshold — no root needed at runtime. + +> Ported from the Noctalia v4 (Quickshell/QML) plugin of the same name to the v5 +> Luau plugin runtime. + +![Battery & Power Management widget and panel](screenshot.png) + +## Plugin + +Manifest id `piero-93/battery-power-management`. It ships three entries that +share one state snapshot (no Lua memory is shared between them): + +- `service` — the headless entry: polls the battery, power profile, and charge + threshold, and performs every system read/write. +- `widget` — the bar widget: battery glyph, `NN% ±W.W`, and an optional profile + glyph. Click it to open the panel. +- `panel` — the control surface: power-profile switch and charge-limit slider. + Toggle it from a keybind with: + + ```sh + noctalia msg panel-toggle piero-93/battery-power-management:panel + ``` + +## Features + +- **Live bar widget** — battery glyph, `NN% ±W.W`, and an optional profile glyph + (leaf / scale / gauge), tinted by charge and profile state. +- **Power profiles** — one-tap switch between Power-saver / Balanced / Performance + via `powerprofilesctl`. +- **Charge threshold** — a slider to cap charging (50–100%) on hardware that + exposes `charge_control_end_threshold` (ThinkPad, ASUS, and others). +- **Time remaining** — time-to-empty / time-to-full via `upower`. + +## Requirements + +| Tool | Used for | If missing | +|------|----------|------------| +| `powerprofilesctl` | read/set power profile | profile controls are hidden | +| `upower` | time-to-empty/full | time remaining is hidden (watts shown instead) | + +`powerprofilesctl` ships with +[power-profiles-daemon](https://gitlab.freedesktop.org/upower/power-profiles-daemon); +`upower` is packaged as `upower` on every major distro. + +The charge-threshold slider additionally needs the sysfs attribute +`charge_control_end_threshold` to be present **and writable by your user** — see +Usage. + +## Usage + +Install this checkout as a development source and enable the plugin: + +```sh +noctalia msg plugins source add dev path ~/Documents/Projects/community-plugins +noctalia msg plugins enable piero-93/battery-power-management +``` + +Then add the **Battery & Power Management** widget from the bar's Add-widget +picker. `.luau` edits hot-reload; `plugin.toml` changes apply on the next config +reload. + +**Charge-threshold permissions (optional).** Writing the charge limit needs +write access to a root-owned sysfs file. The included script sets that up once, +without giving the plugin root at runtime: + +```sh +cd ~/Documents/Projects/community-plugins/battery-power-management/scripts +sudo ./setup-threshold-permissions.sh BAT0 # use your battery, e.g. BAT1 +``` + +Then **log out and back in**. If you skip this, everything else still works; only +the threshold slider is affected (it shows a notification on write failure). + +## Settings + +| Setting | Type | Default | Description | +|---------|------|---------|-------------| +| Colorize by profile | bool | `true` | Tint the widget by active profile | +| Power-saver color | color | `secondary` | Accent for the Power-saver profile | +| Performance color | color | `error` | Accent for the Performance profile | +| Show profile icon | bool | `true` | Show the profile glyph in the widget | +| Show balanced icon | bool | `false` | Also show the glyph on Balanced | +| Battery device | string | `BAT0` | sysfs battery name (`BAT0`, `BAT1`, …) | + +## What it does to your system + +For review transparency (this plugin is trusted, unsandboxed Luau): + +- **Reads** `/sys/class/power_supply//uevent` and + `/sys/class/power_supply//charge_control_end_threshold` (poll ~2 s). +- **Runs** `powerprofilesctl get` / `powerprofilesctl set ` and + `upower -i /org/freedesktop/UPower/devices/battery_`. +- **Writes** ` > /sys/class/power_supply//charge_control_end_threshold` + only when you move the slider (guarded by `commandExists` and permissions). +- **No network access.** + +## License + +GPL-3.0 diff --git a/battery-power-management/panel.luau b/battery-power-management/panel.luau new file mode 100644 index 00000000..3f5b4399 --- /dev/null +++ b/battery-power-management/panel.luau @@ -0,0 +1,165 @@ +--!nonstrict + +local SNAPSHOT = "battery.snapshot" +local COMMAND = "battery.command" + +local snap = noctalia.state.get(SNAPSHOT) or { + percent = 0, + status = "Unknown", + watt = 0, + eta = "", + profile = "balanced", + threshold = 80, + hasThreshold = false, + hasProfile = false, +} + +-- Live slider value while dragging; committed to the service on drag end. +local thresholdDraft = nil +local reqId = 0 + +local STATUS_KEY = { + Charging = "status.charging", + Discharging = "status.discharging", + Full = "status.full", + ["Not charging"] = "status.not_charging", + Unknown = "status.unknown", +} + +local function dispatch(action, value) + reqId += 1 + noctalia.state.set(COMMAND, { + action = action, + value = value, + requestId = tostring(os.time()) .. "-" .. tostring(reqId), + }) +end + +local function batteryGlyph() + local s = snap.status + if s == "Charging" then + return "battery-charging" + elseif s == "Full" then + return "battery-charging-2" + end + local p = snap.percent or 0 + if p >= 86 then + return "battery-4" + elseif p >= 56 then + return "battery-3" + elseif p >= 31 then + return "battery-2" + elseif p >= 11 then + return "battery-1" + end + return "battery" +end + +local function subLine() + if snap.status == "Charging" and snap.eta ~= "" then + return noctalia.tr("panel.time_to_full", { time = snap.eta }) + elseif snap.status == "Discharging" and snap.eta ~= "" then + return noctalia.tr("panel.remaining", { time = snap.eta }) + end + return string.format("%.1f W", snap.watt or 0) +end + +local function profileButton(profile, glyph, handler) + return ui.button({ + glyph = glyph, + variant = (snap.profile == profile) and "primary" or "ghost", + onClick = handler, + }) +end + +local function render() + local status = STATUS_KEY[snap.status] or "status.unknown" + local threshold = thresholdDraft or snap.threshold or 80 + + local sections = { + ui.row({ gap = 10, align = "center", padding = 8, fill = "surface_variant/0.4", radius = 8 }, { + ui.column({ align = "center", gap = 2 }, { + ui.glyph({ name = batteryGlyph(), size = 22, color = "primary" }), + ui.label({ text = (snap.percent or 0) .. "%", fontWeight = "bold" }), + }), + ui.separator({ orientation = "vertical" }), + ui.column({ gap = 2, flexGrow = 1 }, { + ui.label({ text = noctalia.tr(status), fontWeight = "bold" }), + ui.label({ text = subLine(), fontSize = 12, color = "on_surface_variant" }), + }), + }), + } + + if snap.hasProfile then + table.insert(sections, ui.label({ + text = noctalia.tr("panel.power_profile"), + fontSize = 12, + color = "on_surface_variant", + })) + table.insert(sections, ui.row({ gap = 8, justify = "center" }, { + profileButton("power-saver", "leaf", "onProfilePowerSaver"), + profileButton("balanced", "scale", "onProfileBalanced"), + profileButton("performance", "gauge", "onProfilePerformance"), + })) + end + + if snap.hasThreshold then + table.insert(sections, ui.label({ + text = noctalia.tr("panel.charge_threshold"), + fontSize = 12, + color = "on_surface_variant", + })) + table.insert(sections, ui.row({ gap = 10, align = "center" }, { + ui.glyph({ name = "shield-heart", color = "on_surface_variant" }), + ui.slider({ + min = 50, + max = 100, + step = 5, + value = threshold, + flexGrow = 1, + onChange = "onThresholdChange", + onDragEnd = "onThresholdCommit", + }), + ui.label({ text = threshold .. "%", fontWeight = "bold" }), + })) + end + + panel.render(ui.column({ gap = 6, padding = 10 }, sections)) +end + +function onOpen(_context) + snap = noctalia.state.get(SNAPSHOT) or snap + thresholdDraft = nil + render() +end + +noctalia.state.watch(SNAPSHOT, function(value) + if type(value) == "table" then + snap = value + render() + end +end) + +function onProfilePowerSaver() + dispatch("set_profile", "power-saver") +end + +function onProfileBalanced() + dispatch("set_profile", "balanced") +end + +function onProfilePerformance() + dispatch("set_profile", "performance") +end + +function onThresholdChange(value) + thresholdDraft = tonumber(value) + render() +end + +function onThresholdCommit() + if thresholdDraft then + dispatch("set_threshold", thresholdDraft) + thresholdDraft = nil + end +end diff --git a/battery-power-management/plugin.toml b/battery-power-management/plugin.toml new file mode 100644 index 00000000..e0182119 --- /dev/null +++ b/battery-power-management/plugin.toml @@ -0,0 +1,70 @@ +id = "piero-93/battery-power-management" +name = "Battery & Power Management" +version = "1.0.0" +plugin_api = 3 +author = "piero-93" +license = "GPL-3.0" +icon = "battery-charging" +description = "Battery widget with live power draw, power-profile switching, and charge-limit control — no root at runtime." +tags = ["bar", "panel", "system", "hardware", "indicator", "utility"] + +dependencies = ["powerprofilesctl", "upower"] + +[[setting]] +key = "colorize_by_profile" +type = "bool" +label_key = "settings.colorize_by_profile.label" +description_key = "settings.colorize_by_profile.description" +default = true + +[[setting]] +key = "color_power_saver" +type = "color" +label_key = "settings.color_power_saver.label" +description_key = "settings.color_power_saver.description" +default = "secondary" + +[[setting]] +key = "color_performance" +type = "color" +label_key = "settings.color_performance.label" +description_key = "settings.color_performance.description" +default = "error" + +[[setting]] +key = "show_profile" +type = "bool" +label_key = "settings.show_profile.label" +description_key = "settings.show_profile.description" +default = true + +[[setting]] +key = "show_balanced_icon" +type = "bool" +label_key = "settings.show_balanced_icon.label" +description_key = "settings.show_balanced_icon.description" +default = false + +[[setting]] +key = "battery_device" +type = "string" +label_key = "settings.battery_device.label" +description_key = "settings.battery_device.description" +default = "BAT0" + +[[widget]] +id = "widget" +entry = "widget.luau" + +[[panel]] +id = "panel" +entry = "panel.luau" +width = 270 +height = 220 +placement = "attached" +position = "auto" +open_near_click = true + +[[service]] +id = "service" +entry = "service.luau" diff --git a/battery-power-management/screenshot.png b/battery-power-management/screenshot.png new file mode 100644 index 00000000..dd7ef4bd Binary files /dev/null and b/battery-power-management/screenshot.png differ diff --git a/battery-power-management/scripts/setup-threshold-permissions.sh b/battery-power-management/scripts/setup-threshold-permissions.sh new file mode 100755 index 00000000..ded5a897 --- /dev/null +++ b/battery-power-management/scripts/setup-threshold-permissions.sh @@ -0,0 +1,48 @@ +#!/usr/bin/env bash +# --------------------------------------------------------------------------- +# Battery charge-threshold udev setup. +# +# Lets the plugin write /sys/class/power_supply//charge_control_end_threshold +# at runtime WITHOUT root: it creates a `battery_ctl` group, adds you to it, and +# grants that group write access to the attribute via a udev rule. +# +# Usage: sudo ./setup-threshold-permissions.sh [BATTERY_DEVICE] +# BATTERY_DEVICE defaults to BAT0 (match the plugin's "Battery device" setting). +# +# Run once, then log out and back in for the group change to take effect. +# --------------------------------------------------------------------------- +set -euo pipefail + +BAT="${1:-BAT0}" +RULE_FILE="/etc/udev/rules.d/99-battery-threshold.rules" + +if [ "${EUID}" -ne 0 ]; then + echo "Error: run as root, e.g. sudo $0 ${BAT}" >&2 + exit 1 +fi + +TARGET_USER="${SUDO_USER:-}" +if [ -z "${TARGET_USER}" ]; then + echo "Error: could not determine the target user (run via sudo, not as raw root)." >&2 + exit 1 +fi + +if ! getent group battery_ctl >/dev/null; then + echo "Creating group battery_ctl..." + groupadd battery_ctl +fi + +echo "Adding ${TARGET_USER} to battery_ctl..." +usermod -aG battery_ctl "${TARGET_USER}" + +echo "Writing ${RULE_FILE} for ${BAT}..." +cat >"${RULE_FILE}" < "1h 12m" / "34m". +local function formatUpowerTime(value) + local numStr, unit = value:match("^(%S+)%s*(%S*)") + local num = tonumber(numStr) + if not num then + return "" + end + local minutes + if unit:sub(1, 4) == "hour" then + minutes = num * 60 + elseif unit:sub(1, 6) == "minute" then + minutes = num + elseif unit:sub(1, 6) == "second" then + minutes = num / 60 + elseif unit:sub(1, 3) == "day" then + minutes = num * 1440 + else + return value + end + local total = math.floor(minutes + 0.5) + local h = total // 60 + local m = total % 60 + if h > 0 then + return string.format("%dh %dm", h, m) + end + return string.format("%dm", m) +end + +local function parseBattery(content) + if not content or content == "" then + return + end + local cap = snapshot.percent + local powerNow, currentNow, voltageNow + local status = snapshot.status + for line in content:gmatch("[^\n]+") do + local k, v = line:match("^([%w_]+)=(.*)$") + if k == "POWER_SUPPLY_CAPACITY" then + cap = tonumber(v) or cap + elseif k == "POWER_SUPPLY_POWER_NOW" then + powerNow = tonumber(v) + elseif k == "POWER_SUPPLY_CURRENT_NOW" then + currentNow = tonumber(v) + elseif k == "POWER_SUPPLY_VOLTAGE_NOW" then + voltageNow = tonumber(v) + elseif k == "POWER_SUPPLY_STATUS" then + status = noctalia.string.trim(v) + end + end + -- POWER_NOW is microwatts; some drivers only expose CURRENT_NOW (µA) + VOLTAGE_NOW (µV). + local watt = 0.0 + if powerNow then + watt = math.abs(powerNow) / 1000000.0 + elseif currentNow and voltageNow then + watt = math.abs(currentNow * voltageNow) / 1000000000000.0 + end + snapshot.percent = cap + snapshot.status = status + snapshot.watt = watt +end + +local function parseThreshold(content) + local v = content and tonumber(noctalia.string.trim(content)) + if v and v >= 50 and v <= 100 then + snapshot.threshold = v + snapshot.hasThreshold = true + else + snapshot.hasThreshold = false + end +end + +-- Read battery uevent + charge threshold asynchronously so update() never blocks +-- on a slow sysfs/EC access. +local function readSysfs() + if reading then + return + end + reading = true + local base = sysfsBase() + local cmd = "cat " .. shellQuote(base .. "/uevent") .. "; echo " .. SEP + .. "; cat " .. shellQuote(base .. "/charge_control_end_threshold") .. " 2>/dev/null" + local launched = noctalia.runAsync(cmd, function(res) + reading = false + local out = res.stdout or "" + local sepAt = out:find(SEP, 1, true) + parseBattery(sepAt and out:sub(1, sepAt - 1) or out) + parseThreshold(sepAt and out:sub(sepAt + #SEP) or "") + publish() + end, READ_TIMEOUT_MS) + if not launched then + reading = false + end +end + +local function probeProfileAndEta() + if probing or not (HAS_PPD or HAS_UPOWER) then + return + end + probing = true + + local profileCmd = HAS_PPD and "powerprofilesctl get" or "true" + local etaCmd = HAS_UPOWER + and ("upower -i /org/freedesktop/UPower/devices/battery_" .. deviceName()) + or "true" + local cmd = profileCmd .. "; echo " .. SEP .. "; " .. etaCmd + + local launched = noctalia.runAsync(cmd, function(res) + probing = false + local out = res.stdout or "" + local sepAt = out:find(SEP, 1, true) + local profOut = sepAt and out:sub(1, sepAt - 1) or "" + local etaOut = sepAt and out:sub(sepAt + #SEP) or out + + if HAS_PPD then + local p = noctalia.string.trim(profOut) + if p ~= "" then + snapshot.profile = p + end + end + + local eta = "" + if HAS_UPOWER then + for line in etaOut:gmatch("[^\n]+") do + local l = noctalia.string.trim(line) + local val = l:match("^time to empty:%s*(.+)$") or l:match("^time to full:%s*(.+)$") + if val then + eta = formatUpowerTime(val) + break + end + end + end + snapshot.eta = eta + publish() + end, PROBE_TIMEOUT_MS) + + if not launched then + probing = false + end +end + +noctalia.state.watch(COMMAND, function(cmd) + if type(cmd) ~= "table" then + return + end + + if cmd.action == "set_profile" then + if not HAS_PPD then + return + end + local p = tostring(cmd.value or "") + if p == "" then + return + end + snapshot.profile = p -- optimistic; confirmed by the next probe + publish() + noctalia.runAsync("powerprofilesctl set " .. shellQuote(p), function(res) + if res.exitCode ~= 0 then + noctalia.log("powerprofilesctl set failed: " .. (res.stderr or "")) + end + end, PROBE_TIMEOUT_MS) + elseif cmd.action == "set_threshold" then + local v = tonumber(cmd.value) + if not v then + return + end + v = math.max(50, math.min(100, math.floor(v + 0.5))) + snapshot.threshold = v -- optimistic; confirmed by the next read + publish() + local path = sysfsBase() .. "/charge_control_end_threshold" + noctalia.runAsync("echo " .. v .. " > " .. shellQuote(path), function(res) + if res.exitCode ~= 0 then + noctalia.notifyError( + noctalia.tr("notify.threshold_error_title"), + noctalia.tr("notify.threshold_error_body") + ) + noctalia.log("threshold write failed: " .. (res.stderr or "")) + end + readSysfs() + end, PROBE_TIMEOUT_MS) + end +end) + +function update() + readSysfs() + if tick % PROBE_EVERY == 0 then + probeProfileAndEta() + end + tick += 1 +end + +function onConfigChanged() + -- battery_device may have changed; re-read now. + tick = 0 + reading = false + probing = false + readSysfs() + probeProfileAndEta() +end + +noctalia.setUpdateInterval(POLL_MS) + +-- Seed state before the first async read completes. +publish() +readSysfs() +probeProfileAndEta() diff --git a/battery-power-management/thumbnail.webp b/battery-power-management/thumbnail.webp new file mode 100644 index 00000000..28aff454 Binary files /dev/null and b/battery-power-management/thumbnail.webp differ diff --git a/battery-power-management/translations/en.json b/battery-power-management/translations/en.json new file mode 100644 index 00000000..1f640cf4 --- /dev/null +++ b/battery-power-management/translations/en.json @@ -0,0 +1,56 @@ +{ + "status": { + "charging": "Charging", + "discharging": "Discharging", + "full": "Full", + "not_charging": "Not charging", + "unknown": "Unknown" + }, + "tooltip": { + "level": "Level", + "status": "Status", + "power": "Power", + "remaining": "Remaining", + "to_full": "To full", + "profile": "Profile" + }, + "panel": { + "power_profile": "Power profile", + "charge_threshold": "Charge limit", + "time_to_full": "Full in {time}", + "remaining": "{time} left", + "profile_power-saver": "Power saver", + "profile_balanced": "Balanced", + "profile_performance": "Performance" + }, + "notify": { + "threshold_error_title": "Battery threshold", + "threshold_error_body": "Could not write the charge limit. Check the udev permissions (see the plugin README)." + }, + "settings": { + "colorize_by_profile": { + "label": "Colorize by profile", + "description": "Tint the widget by the active power profile" + }, + "color_power_saver": { + "label": "Power-saver color", + "description": "Accent color used when the Power-saver profile is active" + }, + "color_performance": { + "label": "Performance color", + "description": "Accent color used when the Performance profile is active" + }, + "show_profile": { + "label": "Show profile icon", + "description": "Display the active power-profile glyph in the widget" + }, + "show_balanced_icon": { + "label": "Show balanced icon", + "description": "Also show the profile glyph while on the Balanced profile (only when Show profile icon is on)" + }, + "battery_device": { + "label": "Battery device", + "description": "sysfs battery name, e.g. BAT0 or BAT1" + } + } +} diff --git a/battery-power-management/widget.luau b/battery-power-management/widget.luau new file mode 100644 index 00000000..05eae71d --- /dev/null +++ b/battery-power-management/widget.luau @@ -0,0 +1,123 @@ +--!nonstrict + +local SNAPSHOT = "battery.snapshot" +local PANEL_ID = "piero-93/battery-power-management:panel" + +local snap = noctalia.state.get(SNAPSHOT) or { + percent = 0, + status = "Unknown", + watt = 0, + profile = "balanced", + hasProfile = false, +} +local isVertical = false + +local function accent() + if snap.status == "Charging" then + return "primary" + end + if noctalia.getConfig("colorize_by_profile") ~= false then + if snap.profile == "power-saver" then + return tostring(noctalia.getConfig("color_power_saver") or "secondary") + elseif snap.profile == "performance" then + return tostring(noctalia.getConfig("color_performance") or "error") + end + end + return "on_surface" +end + +local function batteryGlyph() + local s = snap.status + if s == "Charging" then + return "battery-charging" + elseif s == "Full" then + return "battery-charging-2" + end + local p = snap.percent or 0 + if p >= 86 then + return "battery-4" + elseif p >= 56 then + return "battery-3" + elseif p >= 31 then + return "battery-2" + elseif p >= 11 then + return "battery-1" + end + return "battery" +end + +local function profileGlyph() + if snap.profile == "power-saver" then + return "leaf" + elseif snap.profile == "performance" then + return "gauge" + elseif noctalia.getConfig("show_balanced_icon") == true then + return "scale" + end + return "" +end + +local function tooltipRows() + local statusText = noctalia.tr("status." .. (snap.status or "Unknown"):lower():gsub("%s", "_")) + local rows = { + { key = noctalia.tr("tooltip.level"), value = (snap.percent or 0) .. "%" }, + { key = noctalia.tr("tooltip.status"), value = statusText }, + { key = noctalia.tr("tooltip.power"), value = string.format("%.1f W", snap.watt or 0) }, + } + if snap.eta and snap.eta ~= "" then + local timeKey = snap.status == "Charging" and "tooltip.to_full" or "tooltip.remaining" + table.insert(rows, { key = noctalia.tr(timeKey), value = snap.eta }) + end + if snap.hasProfile then + table.insert(rows, { key = noctalia.tr("tooltip.profile"), value = noctalia.tr("panel.profile_" .. snap.profile) }) + end + return rows +end + +local function render() + local color = accent() + local children = { ui.glyph({ name = batteryGlyph(), color = color }) } + + if not isVertical then + local sign = snap.status == "Charging" and "+" or "-" + table.insert(children, ui.label({ + text = string.format("%d%% %s%.1fW", snap.percent or 0, sign, snap.watt or 0), + fontWeight = "bold", + color = color, + })) + end + + if noctalia.getConfig("show_profile") ~= false and snap.hasProfile then + local pg = profileGlyph() + if pg ~= "" then + table.insert(children, ui.glyph({ name = pg, color = color })) + end + end + + local container = isVertical and ui.column or ui.row + barWidget.render(container({ gap = 6, align = "center" }, children)) + barWidget.setTooltip(tooltipRows()) +end + +noctalia.state.watch(SNAPSHOT, function(value) + if type(value) == "table" then + snap = value + render() + end +end) + +function update() + isVertical = barWidget.isVertical() + render() +end + +function onConfigChanged() + render() +end + +function onClick() + noctalia.togglePanel(PANEL_ID) +end + +noctalia.setUpdateInterval(30000) +render()