home/natto/ags: init

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

home/natto/ags/windows/settings/backlight.js

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+const hasBacklight = Variable(Utils.exec("ls /sys/class/backlight"));
+
+export default () => {
+  const getBrightness = () => {
+    try {
+      return (
+        Number(Utils.exec("brightnessctl get")) /
+        Number(Utils.exec("brightnessctl max"))
+      );
+    } catch {
+      console.log("settings/backlight: failed to get brightness");
+    }
+    return 0;
+  };
+
+  const setBrightness = (b) => {
+    if (b < 0.05) b = 0.05;
+    else if (b > 1) b = 1;
+
+    Utils.exec(`brightnessctl set ${b * 100}%`);
+  };
+  const brightness = Variable(getBrightness());
+
+  const Slider = Widget.Slider({
+    hexpand: true,
+    drawValue: false,
+    onChange: ({ value }) => setBrightness(value),
+    value: brightness.bind(),
+  });
+
+  const Indicator = Widget.Button({
+    on_clicked: brightness.bind().as((b) => () => {
+      if (b <= 0.5) brightness.value = 1;
+      else brightness.value = 0.5;
+    }),
+    child: Widget.Icon().hook(brightness, (self) => {
+      self.className = "brightness-icon";
+      self.icon = `display-brightness-symbolic`;
+      self.tooltip_text = `Brightness: ${Math.floor(brightness.value * 100)}%`;
+    }),
+  });
+
+  return Widget.Box({
+    className: "brightness",
+    visible: hasBacklight.bind().as((b) => !!b),
+    children: [Slider, Indicator],
+  });
+};