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import { timeout, Variable, type Time } from "astal";
import { Astal, Gtk, type Widget } from "astal/gtk3";
import cairo from "cairo";
import AstalWp from "gi://AstalWp";
import Pango from "gi://Pango";
import PangoCairo from "gi://PangoCairo";
import { osds as config } from "../config";
import { type Monitor } from "../services/monitors";
import { PopupWindow } from "../utils/widgets";
const getStyle = (context: Gtk.StyleContext, prop: string) => context.get_property(prop, Gtk.StateFlags.NORMAL);
const getNumStyle = (context: Gtk.StyleContext, prop: string) => getStyle(context, prop) as number;
const mix = (a: number, b: number, r: number) => a * r + b * (1 - r);
const pangoWeightToStr = (weight: Pango.Weight) => {
switch (weight) {
case Pango.Weight.ULTRALIGHT:
return "UltraLight";
case Pango.Weight.LIGHT:
return "Light";
case Pango.Weight.BOLD:
return "Bold";
case Pango.Weight.ULTRABOLD:
return "UltraBold";
case Pango.Weight.HEAVY:
return "Heavy";
default:
return "Normal";
}
};
const SliderOsd = ({
fillIcons,
monitor,
type,
windowSetup,
className = "",
initValue,
drawAreaSetup,
}: {
fillIcons?: boolean;
monitor: Monitor;
type: keyof typeof config;
windowSetup: (self: Widget.Window, hideAfterTimeout: () => void) => void;
className?: string;
initValue: number;
drawAreaSetup: (self: Widget.DrawingArea, icon: Variable<string>) => void;
}) => (
<PopupWindow
name={type}
monitor={monitor.id}
keymode={Astal.Keymode.NONE}
anchor={config[type].position}
margin={config[type].margin}
setup={self => {
let time: Time | null = null;
const hideAfterTimeout = () => {
time?.cancel();
time = timeout(config[type].hideDelay, () => self.hide());
};
self.connect("show", hideAfterTimeout);
windowSetup(self, hideAfterTimeout);
}}
>
<box className={type}>
<drawingarea
className={`inner ${className}`}
css={"font-size: " + initValue + "px;"}
setup={self => {
const halfPi = Math.PI / 2;
const vertical =
config[type].position === Astal.WindowAnchor.LEFT ||
config[type].position === Astal.WindowAnchor.RIGHT;
const icon = Variable("");
drawAreaSetup(self, icon);
// Init size
const styleContext = self.get_style_context();
const width = getNumStyle(styleContext, "min-width");
const height = getNumStyle(styleContext, "min-height");
if (vertical) self.set_size_request(height, width);
else self.set_size_request(width, height);
let fontDesc: Pango.FontDescription | null = null;
self.connect("draw", (_, cr: cairo.Context) => {
const styleContext = self.get_style_context();
let width = getNumStyle(styleContext, "min-width");
let height = getNumStyle(styleContext, "min-height");
const progressValue = getNumStyle(styleContext, "font-size");
let radius = getNumStyle(styleContext, "border-radius");
// Flatten when near 0, do before swap cause its simpler
radius = Math.min(radius, Math.min(width * progressValue, height) / 2);
if (vertical) [width, height] = [height, width]; // Swap if vertical
self.set_size_request(width, height);
const progressPosition = vertical
? height * (1 - progressValue) + radius // Top is 0, but we want it to start from the bottom
: width * progressValue - radius;
const bg = styleContext.get_background_color(Gtk.StateFlags.NORMAL);
cr.setSourceRGBA(bg.red, bg.green, bg.blue, bg.alpha);
if (vertical) {
cr.arc(radius, progressPosition, radius, -Math.PI, -halfPi); // Top left
cr.arc(width - radius, progressPosition, radius, -halfPi, 0); // Top right
cr.arc(width - radius, height - radius, radius, 0, halfPi); // Bottom right
} else {
cr.arc(radius, radius, radius, -Math.PI, -halfPi); // Top left
cr.arc(progressPosition, radius, radius, -halfPi, 0); // Top right
cr.arc(progressPosition, height - radius, radius, 0, halfPi); // Bottom right
}
cr.arc(radius, height - radius, radius, halfPi, Math.PI); // Bottom left
cr.fill();
const parent = self.get_parent();
if (parent) {
if (fontDesc === null) {
const pContext = parent.get_style_context();
const families = (getStyle(pContext, "font-family") as string[]).join(",");
const weight = pangoWeightToStr(getStyle(pContext, "font-weight") as Pango.Weight);
const size = getNumStyle(pContext, "font-size");
fontDesc = Pango.font_description_from_string(`${families} ${weight} ${size}px`);
// Ugh GTK CSS doesn't support font-variations, so you need to manually create the layout and font desc instead of using Gtk.Widget#create_pango_layout
if (fillIcons) fontDesc.set_variations("FILL=1");
}
const layout = PangoCairo.create_layout(cr);
layout.set_font_description(fontDesc);
layout.set_text(icon.get(), -1);
const [w, h] = layout.get_pixel_size();
let diff;
if (vertical) {
diff = (progressValue * height) / h;
cr.moveTo((width - w) / 2, Math.min(height - h, progressPosition - h / 2 + radius));
} else {
diff = (progressValue * width) / w;
cr.moveTo(Math.max(0, progressPosition - w / 2 - radius), (height - h) / 2);
}
diff = Math.max(0, Math.min(1, diff));
const fg = styleContext.get_color(Gtk.StateFlags.NORMAL);
cr.setSourceRGBA(
mix(fg.red, bg.red, diff),
mix(fg.green, bg.green, diff),
mix(fg.blue, bg.blue, diff),
mix(fg.alpha, bg.alpha, diff)
);
cr.setAntialias(cairo.Antialias.BEST);
PangoCairo.show_layout(cr, layout);
}
});
}}
/>
</box>
</PopupWindow>
);
const Volume = ({ monitor, audio }: { monitor: Monitor; audio: AstalWp.Audio }) => (
<SliderOsd
fillIcons
monitor={monitor}
type="volume"
windowSetup={(self, hideAfterTimeout) => {
self.hook(audio.defaultSpeaker, "notify::volume", () => {
self.show();
hideAfterTimeout();
});
}}
className={audio.defaultSpeaker.mute ? "mute" : ""}
initValue={audio.defaultSpeaker.volume}
drawAreaSetup={(self, icon) => {
const updateIcon = () => {
if (/head(phone|set)/i.test(audio.defaultSpeaker.icon)) icon.set("headphones");
else if (audio.defaultSpeaker.mute) icon.set("no_sound");
else if (audio.defaultSpeaker.volume === 0) icon.set("volume_mute");
else if (audio.defaultSpeaker.volume <= 0.5) icon.set("volume_down");
else icon.set("volume_up");
};
updateIcon();
self.hook(audio.defaultSpeaker, "notify::icon", updateIcon);
self.hook(audio.defaultSpeaker, "notify::mute", () => {
updateIcon();
self.toggleClassName("mute", audio.defaultSpeaker.mute);
});
self.hook(audio.defaultSpeaker, "notify::volume", () => {
updateIcon();
self.css = `font-size: ${audio.defaultSpeaker.volume}px`;
});
}}
/>
);
const Brightness = ({ monitor }: { monitor: Monitor }) => (
<SliderOsd
monitor={monitor}
type="brightness"
windowSetup={(self, hideAfterTimeout) => {
self.hook(monitor, "notify::brightness", () => {
self.show();
hideAfterTimeout();
});
}}
initValue={monitor.brightness}
drawAreaSetup={(self, icon) => {
const update = () => {
if (monitor.brightness > 0.66) icon.set("brightness_high");
else if (monitor.brightness > 0.33) icon.set("brightness_medium");
else if (monitor.brightness > 0) icon.set("brightness_low");
else icon.set("brightness_empty");
self.css = `font-size: ${monitor.brightness}px`;
};
self.hook(monitor, "notify::brightness", update);
update();
}}
/>
);
export default ({ monitor }: { monitor: Monitor }) => {
if (AstalWp.get_default()) <Volume monitor={monitor} audio={AstalWp.get_default()!.audio} />;
<Brightness monitor={monitor} />;
return null;
};
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