107 lines
4.3 KiB
QML
107 lines
4.3 KiB
QML
pragma Singleton
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// ─────────────────────────────────────────────────────────────────────────────
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// Night light — a thin wrapper around hyprsunset (0.4.0).
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//
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// hyprsunset is a daemon: `hyprsunset -t <kelvin>` grabs wlr-gamma-control and
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// holds it until it exits, and `hyprctl hyprsunset <request>` re-tunes the
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// running instance over its socket. So the shape here is:
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// * `active` drives whether the daemon process runs at all,
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// * temperature changes are pushed to the *running* daemon rather than
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// restarting it, which would flash the screen back to 6500K.
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//
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// Gamma is restored by the compositor when the daemon's gamma-control object
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// dies, so stopping the Process is a complete "off" — no `-i` pass needed.
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//
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// Only works under Hyprland; there is no gamma protocol on GNOME, so the
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// daemon exits immediately there. That is reported once, not retried.
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// ─────────────────────────────────────────────────────────────────────────────
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import Quickshell
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import Quickshell.Io
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import QtQuick
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import qs.config
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Singleton {
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id: root
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property bool initialized: false
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// The manual switch. Ignored while `automatic` is on.
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property bool enabled: Settings.nightLightEnabledByDefault
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property int temperature: Settings.nightLightTemperature
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// Follow Settings.nightLightFrom .. nightLightTo instead of the manual
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// switch. Off by default because GNOME's schedule was disabled.
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property bool automatic: DesktopPreferences.nightLightAutomatic
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// What is actually applied right now.
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readonly property bool active: root.automatic ? root.scheduled : root.enabled
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// True while the wall clock is inside the scheduled window.
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readonly property bool scheduled: root.inWindow(clock.hours + clock.minutes / 60)
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// A manual toggle always wins: it drops out of the schedule rather than
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// being silently reverted a minute later. Same as GNOME's behaviour when
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// you flip night light off during a scheduled evening.
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function toggle(): void {
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if (root.automatic) {
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root.automatic = false;
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root.enabled = !root.scheduled;
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} else {
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root.enabled = !root.enabled;
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}
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}
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// The window wraps midnight (17:00 → 10:00), so the comparison flips when
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// `from` is later in the day than `to`.
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function inWindow(hour: real): bool {
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const from = Settings.nightLightFrom;
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const to = Settings.nightLightTo;
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return from <= to ? (hour >= from && hour < to) : (hour >= from || hour < to);
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}
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// Only ticks while the schedule is in charge — no idle work otherwise.
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SystemClock {
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id: clock
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precision: SystemClock.Minutes
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enabled: root.automatic
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}
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Process {
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id: daemon
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command: ["hyprsunset", "-t", String(root.temperature)]
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running: root.active
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onExited: (code, status) => {
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if (root.active)
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console.warn("NightLight: hyprsunset exited with", code, "- is Hyprland running?");
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}
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}
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// Re-tune in place; restarting the daemon would flash the display.
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onTemperatureChanged: {
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DesktopPreferences.nightLightTemperature = root.temperature;
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if (daemon.running)
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Quickshell.execDetached(["hyprctl", "hyprsunset", "temperature", String(root.temperature)]);
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}
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onEnabledChanged: DesktopPreferences.nightLightEnabled = root.enabled
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onAutomaticChanged: DesktopPreferences.nightLightAutomatic = root.automatic
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onActiveChanged: {
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if (!root.initialized)
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return;
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StatusEvents.publish({
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key: "display-night-light",
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glyph: "\u{F0F31}",
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title: root.active ? "Night Light on" : "Night Light off",
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detail: root.active ? String(root.temperature) + " K" : "Display colors restored",
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tone: root.active ? "warn" : "accent",
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priority: StatusEvents.ambientPriority
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});
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}
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Component.onCompleted: Qt.callLater(() => root.initialized = true)
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}
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