✨ feat(modules/notifications, osd): pause notification timeout on holdNotification

osd now supports brightness controlsgit add .

resources/styles/_osd.scss

@@ -12,29 +12,23 @@
     -gtk-icon-size: 24px;
   }
 
-  .volume {
+  .level {
     margin-top: -6px;
 
-    .device {
-      margin-bottom: 6px;
+    .text {
+      margin-bottom: 4px;
       font-size: 14px;
       font-weight: 600;
     }
 
     levelbar trough block {
-      border-radius: 3px;
+      border-radius: 4px;
       background: colors.$bg-primary;
 
       &.filled {
-        min-height: 8px;
+        min-height: 10px;
         background: colors.$bg-secondary;
       }
     }
-
-    .value {
-      font-size: 11px;
-      font-weight: 400;
-      padding: 0 4px;
-    }
   }
 }

src/app.ts

@@ -22,15 +22,15 @@ import { Clipboard } from "./modules/clipboard";
 import { Config } from "./modules/config";
 import { Gdk, Gtk } from "ags/gtk4";
 import { createRoot, getScope } from "ags";
-import { triggerOSD } from "./window/OSD";
+import { OSDModes, triggerOSD } from "./window/OSD";
 import { programArgs, programInvocationName } from "system";
 import { setConsoleLogDomain } from "console";
 import { initPlayer } from "./modules/media";
 import { encoder } from "./modules/utils";
 import { exec } from "ags/process";
+import { Backlights } from "./modules/backlight";
 import GObject, { register } from "ags/gobject";
 
-import AstalNotifd from "gi://AstalNotifd";
 import GLib from "gi://GLib?version=2.0";
 import Gio from "gi://Gio?version=2.0";
 import Adw from "gi://Adw?version=1";
@@ -283,15 +283,38 @@ you should use the socket in the XDG_RUNTIME_DIR/colorshell.sock for a faster re
 
             this.#connections.set(Wireplumber.getDefault(), 
                 Wireplumber.getDefault().getDefaultSink().connect("notify::volume", () => 
-                    triggerOSD())
+                    !Windows.getDefault().isOpen("control-center") &&
+                        triggerOSD(OSDModes.SINK)
+                )
+            );
+
+            // dinamically connect to default backlight (if there's any)
+            let lastDefaultBk: Backlights.Backlight|null = null;
+            this.#connections.set(Backlights.getDefault(), 
+                Backlights.getDefault().connect("notify::default", (_, defaultBk: Backlights.Backlight|null) => {
+                    if(!lastDefaultBk) return;
+
+                    if(this.#connections.has(lastDefaultBk))
+                        lastDefaultBk.disconnect((this.#connections.get(lastDefaultBk) as number));
+
+                    lastDefaultBk = null;
+                    if(!defaultBk) return;
+
+                    lastDefaultBk = defaultBk;
+
+                    this.#connections.set(defaultBk, defaultBk.connect("brightness-changed", () => 
+                        !Windows.getDefault().isOpen("control-center") &&
+                            triggerOSD(OSDModes.BRIGHTNESS)
+                    ));
+                })
             );
 
             this.#connections.set(Notifications.getDefault(), [
-                Notifications.getDefault().connect("notification-added", (_, _notif: AstalNotifd.Notification) => {
+                Notifications.getDefault().connect("notification-added", () => {
                     Windows.getDefault().open("floating-notifications");
                 }),
-                Notifications.getDefault().connect("notification-removed", (_: Notifications, _id: number) => {
-                    _.notifications.length === 0 && Windows.getDefault().close("floating-notifications");
+                Notifications.getDefault().connect("notification-removed", (self) => {
+                    self.notifications.length === 0 && Windows.getDefault().close("floating-notifications");
                 })
             ]);
 

src/modules/auth.ts

@@ -1,14 +1,17 @@
-import { execAsync, Gio, GLib, register } from "astal";
-import Polkit from "gi://Polkit";
-import PolkitAgent from "gi://PolkitAgent";
+import { execAsync } from "ags/process";
+import { register } from "ags/gobject";
 import { EntryPopup, EntryPopupProps } from "../widget/EntryPopup";
-import AstalAuth from "gi://AstalAuth";
 import { AskPopup, AskPopupProps } from "../widget/AskPopup";
 
-export { Auth };
+import AstalAuth from "gi://AstalAuth";
+import Polkit from "gi://Polkit";
+import PolkitAgent from "gi://PolkitAgent";
+import Gio from "gi://Gio?version=2.0";
+import GLib from "gi://GLib?version=2.0";
+
 
 @register({ GTypeName: "AuthAgent" })
-class Auth extends PolkitAgent.Listener {
+export class Auth extends PolkitAgent.Listener {
     private static instance: Auth;
     #subject: Polkit.Subject;
 

src/modules/backlight.ts

@@ -193,6 +193,13 @@ export namespace Backlights {
         ): void {
             super.emit(signal, ...args);
         }
+
+        public connect<Signal extends keyof typeof this.$signals>(
+            signal: Signal,
+            callback: (self: typeof this, ...args: Parameters<(typeof this.$signals)[Signal]>) => ReturnType<(typeof this.$signals)[Signal]>
+        ): number {
+            return super.connect(signal, callback);
+        }
     }
 
     export const Backlights = _Backlights;

src/modules/notifications.ts

@@ -1,17 +1,13 @@
-import { timeout } from "ags/time";
 import { execAsync } from "ags/process";
-import { readFile } from "ags/file";
 import { generalConfig } from "../app";
 import { onCleanup } from "ags";
-import GObject, { getter, property, register, signal } from "ags/gobject";
+import GObject, { getter, ParamSpec, property, register, signal } from "ags/gobject";
 
 import AstalNotifd from "gi://AstalNotifd";
-import AstalIO from "gi://AstalIO";
-import Gio from "gi://Gio?version=2.0";
 import GLib from "gi://GLib?version=2.0";
 
 
-export interface HistoryNotification {
+export type HistoryNotification = {
     id: number;
     appName: string;
     body: string;
@@ -22,28 +18,100 @@ export interface HistoryNotification {
     image?: string;
 }
 
+export class NotificationTimeout {
+    #source?: GLib.Source;
+    #args?: Array<any>;
+    #millis: number;
+    #lastRemained!: number;
+
+    readonly callback: () => void;
+    get millis(): number { return this.#millis; }
+    get remaining(): number { return this.source!.get_time() }
+    get lastRemained(): number { return this.#lastRemained; }
+    get running(): boolean { return Boolean(this.source?.is_destroyed()); }
+    get source(): GLib.Source|undefined { return this.#source; }
+
+    constructor(millis: number, callback: () => void, start: boolean = true, ...args: Array<any>) {
+        this.#millis = millis;
+        this.callback = callback;
+        this.#args = args;
+
+        if(!start) return;
+        this.start();
+    }
+
+    cancel(): void {
+        // use lastRemained to calculate on what time the user hold the notification, so it
+        // can be released by the remaining time (works like a timeout "pause")
+        this.#lastRemained = Math.floor(Math.max(this.#source!.get_ready_time() - GLib.get_monotonic_time()) / 1000);
+        this.#source?.destroy();
+        this.#source?.unref();
+        this.#source = undefined;
+    }
+
+    start(newMillis?: number): GLib.Source {
+        if(this.running)
+            throw new Error("Notifications: Can't start a new counter if it's already running!");
+
+        if(newMillis !== undefined)
+            this.#millis = newMillis;
+
+        this.#source = setTimeout(
+            this.callback,
+            this.#millis,
+            this.#args
+        );
+
+        this.#lastRemained = Math.floor(Math.max(this.#source!.get_ready_time() - GLib.get_monotonic_time()) / 1000);
+
+        return this.#source;
+    }
+};
+
 @register({ GTypeName: "Notifications" })
-class Notifications extends GObject.Object {
+export class Notifications extends GObject.Object {
     private static instance: (Notifications|null) = null;
 
-    #notifications: Array<AstalNotifd.Notification> = [];
+    declare $signals: GObject.Object.SignalSignatures & {
+        "history-added": (notification: HistoryNotification) => void;
+        "history-removed": (notificationId: number) => void;
+        "history-cleared": () => void;
+        "notification-added": (notification: AstalNotifd.Notification) => void;
+        "notification-removed": (notificationId: number) => void;
+        "notification-replaced": (notificationId: number) => void;
+    };
+
+    #notifications = new Map<number, [AstalNotifd.Notification, NotificationTimeout]>();
     #history: Array<HistoryNotification> = [];
-    #notificationsOnHold: Set<number> = new Set<number>();
     #connections: Array<number> = [];
 
     @getter(Array<AstalNotifd.Notification>)
-    public get notifications() { return this.#notifications };
+    public get notifications() {
+        return [...this.#notifications.values()].map(([n]) => n);
+    };
 
     @getter(Array<HistoryNotification>)
     public get history() { return this.#history };
 
+    @getter(Array<AstalNotifd.Notification>)
+    public get notificationsOnHold() {
+        return [...this.#notifications.values()].filter(([_, s]) => 
+            typeof s === "undefined"
+        ).map(([n]) => n);
+    }
+
     @property(Number)
     public historyLimit: number = 10;
 
+    /** skip notifications directly to notification history */
+    @property(Boolean)
+    public ignoreNotifications: boolean = false;
+
 
     @signal(AstalNotifd.Notification) notificationAdded(_notification: AstalNotifd.Notification) {};
     @signal(Number) notificationRemoved(_id: number) {};
-    @signal(Object) historyAdded(_notification: Object) {};
+    @signal(Object as unknown as ParamSpec<HistoryNotification>) historyAdded(_notification: Object) {};
+    @signal() historyCleared() {};
     @signal(Number) historyRemoved(_id: number) {};
     @signal(Number) notificationReplaced(_id: number) {};
 
@@ -53,43 +121,13 @@ class Notifications extends GObject.Object {
         this.#connections.push(
             AstalNotifd.get_default().connect("notified", (notifd, id) => {
                 const notification = notifd.get_notification(id);
-                const notifTimeout = generalConfig.getProperty(
-                    `notifications.timeout_${this.getUrgencyString(notification.urgency).toLowerCase()}`, 
-                    "number") as number;
-
-                if(this.getNotifd().dontDisturb) {
+                
+                if(this.getNotifd().dontDisturb || this.ignoreNotifications) {
                     this.addHistory(notification, () => notification.dismiss());
                     return;
                 }
 
-                this.addNotification(notification, () => {
-                    if(notification.urgency !== AstalNotifd.Urgency.CRITICAL ||
-                      (notification.urgency === AstalNotifd.Urgency.CRITICAL && 
-                        notifTimeout > 0)) {
-
-                        let notifTimer: (AstalIO.Time|undefined) = undefined;
-                        let replacedConnectionId: number;
-
-                        const removeFun = () => { // Funny name haha lmao remove fun :skull:
-                            notifTimer = undefined;
-                            if(this.#notificationsOnHold.has(notification.id)) return;
-
-                            this.addHistory(notification, () => {
-                                replacedConnectionId && this.disconnect(replacedConnectionId);
-                                this.removeNotification(id);
-                            });
-                        }
-
-                        notifTimer = timeout(notifTimeout, removeFun);
-
-                        replacedConnectionId = this.connect("notification-replaced", (_, id: number) => {
-                            if(notification.id !== id) return;
-
-                            notifTimer?.cancel();
-                            notifTimer = timeout(notifTimeout, removeFun);
-                        });
-                    }
-                });
+                this.addNotification(notification, this.getNotificationTimeout(notification) > 0);
             }),
 
             AstalNotifd.get_default().connect("resolved", (notifd, id, _reason) => {
@@ -98,8 +136,6 @@ class Notifications extends GObject.Object {
             })
         );
 
-        this.retrieveHistoryFromFile();
-
         onCleanup(() => {
             this.#connections.map(id => 
                 AstalNotifd.get_default().disconnect(id));
@@ -113,42 +149,6 @@ class Notifications extends GObject.Object {
         return this.instance;
     }
 
-    private retrieveHistoryFromFile(): void {
-        const historyFile = Gio.File.new_for_path(`${GLib.get_user_state_dir()}/astal/notifd/notifications.json`);
-        if(!historyFile.query_exists(null)) return;
-
-        let content: string;
-        console.log("Notifications: History file found! Trying to retrieve history from JSON");
-
-        try {
-            content = readFile(historyFile.get_path()!);
-        } catch(e: any) {
-            console.error(`Notifications: An error occurred while trying to read the history file. Stderr:\n${
-                (e as Error).message}\n${(e as Error).stack}`);
-
-            return;
-        }
-
-        try {
-            const historyJSON = JSON.parse(content);
-
-            (historyJSON["notifications"] as Array<AstalNotifd.Notification>).reverse()
-                .forEach(n => this.addHistory(n));
-        } catch(e: any) {
-            if(e instanceof SyntaxError) {
-                console.error(`Notifications: Couldn't parse history JSON because of a SyntaxError:\n${e.message
-                }\n${e.stack}`);
-
-                return;
-            }
-
-            console.error(`Notifications: An error occurred while parsing the history JSON file. Stderr:\n${
-                e.message}\n${e.stack}`);
-
-            return;
-        }
-    }
-
     public async sendNotification(props: {
         urgency?: AstalNotifd.Urgency;
         appName?: string;
@@ -236,7 +236,7 @@ class Notifications extends GObject.Object {
 
         this.notify("history");
         this.emit("history-added", this.#history[0]);
-        onAdded && onAdded(notif);
+        onAdded?.(notif);
     }
 
     public async clearHistory(): Promise<void> {
@@ -245,6 +245,7 @@ class Notifications extends GObject.Object {
             this.emit("history-removed", notif.id);
         });
 
+        this.emit("history-cleared");
         this.notify("history");
     }
 
@@ -257,47 +258,82 @@ class Notifications extends GObject.Object {
         this.emit("history-removed", notifId);
     }
 
-    private addNotification(notif: AstalNotifd.Notification, onAdded?: (notif: AstalNotifd.Notification) => void): void {
-        for(let i = 0; i < this.#notifications.length; i++) {
-            const item = this.#notifications[i];
+    private addNotification(
+        notif: AstalNotifd.Notification, 
+        removeOnTimeout: boolean = true, 
+        onTimeoutEnd?: () => void
+    ): void {
 
-            if(item.id !== notif.id) continue;
-
-            this.#notifications.splice(i, 1);
-            this.emit("notification-replaced", item.id);
-            break;
+        const replaced = this.#notifications.has(notif.id);
+        const notifTimeout = this.getNotificationTimeout(notif);
+        const onEnd = () => {
+            removeOnTimeout && this.removeNotification(notif);
+            onTimeoutEnd?.();
         }
 
-        this.#notifications.unshift(notif);
+        // destroy timer of replaced notification(if there's any)
+        if(replaced) {
+            const data = this.#notifications.get(notif.id)!;
+            (data?.[1] instanceof NotificationTimeout) && 
+                data[1].cancel();
+        }
+        
+        this.#notifications.set(notif.id, [
+            notif, 
+            new NotificationTimeout(notifTimeout, onEnd, notifTimeout > 0)
+        ]);
+
+        replaced && this.emit("notification-replaced", notif.id);
+
         this.notify("notifications");
         this.emit("notification-added", notif);
-        onAdded?.(notif);
+
+        if(notifTimeout <= 0) onEnd?.();
     }
 
-    public removeNotification(notif: (AstalNotifd.Notification|number)): void {
-        const notificationId = (notif instanceof AstalNotifd.Notification) ? notif.id : notif;
-        this.#notificationsOnHold.delete(notificationId);
-
-        this.#notifications = this.#notifications.filter((item) =>
-            item.id !== notificationId);
-
-        AstalNotifd.get_default().get_notification(notificationId)?.dismiss();
-        this.notify("notifications");
-        this.emit("notification-removed", notificationId);
+    public getNotificationTimeout(notif: AstalNotifd.Notification): number {
+        return generalConfig.getProperty(
+            `notifications.timeout_${this.getUrgencyString(notif.urgency)}`, 
+            "number"
+        );
     }
 
-    private getNotificationById(id: number): AstalNotifd.Notification|undefined {
-        return this.#notifications.filter(notif => notif.id === id)?.[0];
-    }
-
-    public holdNotification(notif: (AstalNotifd.Notification|number)): void {
-        notif = (typeof notif === "number") ? 
-            this.getNotificationById(notif)!
+    public removeNotification(notif: (AstalNotifd.Notification|number), addToHistory: boolean = true): void {
+        notif = typeof notif === "number" ? 
+            this.#notifications.get(notif)?.[0]!
         : notif;
 
         if(!notif) return;
 
-        this.#notificationsOnHold.add(notif.id);
+        const timeout = this.#notifications.get(notif.id)![1];
+        timeout.running && timeout.cancel();
+
+        this.#notifications.delete(notif.id);
+        addToHistory && this.addHistory(notif);
+
+        notif.dismiss();
+        this.notify("notifications");
+        this.emit("notification-removed", notif.id);
+    }
+
+    public holdNotification(notif: AstalNotifd.Notification|number): void {
+        const id = typeof notif === "number" ? notif : notif.id;
+        const data = this.#notifications.get(id);
+
+        if(!data) return;
+
+        data[1].cancel();
+        this.notify("notifications-on-hold");
+    }
+
+    public releaseNotification(notif: AstalNotifd.Notification|number): void {
+        const id = typeof notif === "number" ? notif : notif.id;
+        const data = this.#notifications.get(id);
+
+        if(!data) return;
+        data[1].start(data[1].lastRemained); 
+
+        this.notify("notifications-on-hold");
     }
 
     public toggleDoNotDisturb(value?: boolean): boolean {
@@ -308,6 +344,18 @@ class Notifications extends GObject.Object {
     }
 
     public getNotifd(): AstalNotifd.Notifd { return AstalNotifd.get_default(); }
-}
 
-export { Notifications };
+    public emit<Signal extends keyof typeof this.$signals>(
+        signal: Signal, ...args: Parameters<(typeof this.$signals)[Signal]>
+    ): void {
+        super.emit(signal, ...args);
+    }
+
+    public connect<Signal extends keyof typeof this.$signals>(
+        signal: Signal, 
+        callback: (self: typeof this, ...params: Parameters<(typeof this.$signals)[Signal]>) => 
+            ReturnType<(typeof this.$signals)[Signal]>
+    ): number {
+        return super.connect(signal, callback);
+    }
+}

src/modules/utils.ts

@@ -6,6 +6,7 @@ import { getSymbolicIcon } from "./apps";
 
 import GLib from "gi://GLib?version=2.0";
 import Gio from "gi://Gio?version=2.0";
+import GObject from "gi://GObject?version=2.0";
 
 
 /** gnim doesn't export this, so we need to do it again */
@@ -214,3 +215,29 @@ export function addSliderMarksFromMinMax(slider: Astal.Slider, amountOfMarks: nu
 
     return slider;
 }
+
+/** initialize and sub class properties with accessors */
+export function construct(klass: object, props: Record<any, any|Accessor<any>>): Array<() => void> {
+
+    const subs: Array<() => void> = [];
+    const isGObject = klass instanceof GObject.Object;
+
+    Object.keys(props).forEach(k => {
+        const v = props[k as keyof typeof props];
+
+        if(v === undefined) return;
+        if(v instanceof Accessor) {
+            subs.push(v.subscribe(() => {
+                klass[k as keyof typeof klass] = v.get() as never;
+                if(isGObject) klass.notify(k);
+            }));
+
+            klass[k as keyof typeof klass] = v.get() as never;
+            return;
+        }
+        
+        klass[k as keyof typeof klass] = v as never;
+    });
+
+    return subs;
+}

src/widget/Notification.tsx

@@ -9,7 +9,6 @@ import GObject from "ags/gobject";
 import AstalNotifd from "gi://AstalNotifd";
 import Pango from "gi://Pango?version=1.0";
 import GLib from "gi://GLib?version=2.0";
-import { timeout } from "ags/time";
 
 
 function getNotificationImage(notif: AstalNotifd.Notification|HistoryNotification): (string|undefined) {
@@ -42,36 +41,24 @@ export function NotificationWidget({ notification, actionClicked, holdOnHover, s
 
     const conns: Map<GObject.Object, Array<number>> = new Map();
 
-    onCleanup(() => 
-        conns.forEach((ids, obj) => ids.forEach(id => obj.disconnect(id))));
+    onCleanup(() => conns.forEach((ids, obj) => 
+        ids.forEach(id => obj.disconnect(id))
+    ));
 
     return <Gtk.Box hexpand class={`notification ${
           Notifications.getDefault().getUrgencyString(notification.urgency)
-      }`} orientation={Gtk.Orientation.VERTICAL} spacing={5}
-      $={(self) => {
-          const eventControllerMotion = Gtk.EventControllerMotion.new(),
-              gestureClick = Gtk.GestureClick.new();
-
-          self.add_controller(eventControllerMotion);
-          self.add_controller(gestureClick);
-
-          conns.set(eventControllerMotion, [
-              eventControllerMotion.connect("enter", () => 
-                  holdOnHover && Notifications.getDefault().holdNotification(notification.id)),
-              eventControllerMotion.connect("leave", () => 
-                  holdOnHover && notification && timeout(600, () => 
-                      Notifications.getDefault().removeNotification(notification.id)
-                  ))
-          ]);
-
-          conns.set(gestureClick, [
-              gestureClick.connect("released", (gesture) => {
-                  gesture.get_current_button() === Gdk.BUTTON_PRIMARY &&
-                      actionClicked?.(notification);
-              })
-          ]);
-      }}>
+      }`} orientation={Gtk.Orientation.VERTICAL} spacing={5}>
 
+        <Gtk.EventControllerMotion onEnter={() => holdOnHover && 
+              Notifications.getDefault().holdNotification(notification.id)
+          } onLeave={() => holdOnHover &&
+              Notifications.getDefault().releaseNotification(notification.id)
+          }
+        />
+        <Gtk.GestureClick onReleased={(gesture) => 
+            gesture.get_current_button() === Gdk.BUTTON_PRIMARY &&
+                actionClicked?.(notification)
+        } />
         <Gtk.Box class={"top"} hexpand>
             <Gtk.Image class="app-icon" $={(self) => {
                   const icon = getSymbolicIcon(notification.appIcon ?? notification.appName) ?? 
@@ -84,7 +71,7 @@ export function NotificationWidget({ notification, actionClicked, holdOnHover, s
 
                   self.set_visible(false);
             }} />
-            <Gtk.Label class={"app-name"} halign={Gtk.Align.START} hexpand={true} 
+            <Gtk.Label class={"app-name"} halign={Gtk.Align.START} hexpand
               label={notification.appName || "Application"} />
 
             <Gtk.Label class={"time"} visible={showTime} xalign={1} 
@@ -101,14 +88,14 @@ export function NotificationWidget({ notification, actionClicked, holdOnHover, s
                 />
             }
             <Gtk.Box class={"text"} orientation={Gtk.Orientation.VERTICAL}
-              vexpand={true}>
+              vexpand>
 
-                <Gtk.Label class={"summary"} useMarkup={true} hexpand xalign={0}
+                <Gtk.Label class={"summary"} useMarkup hexpand xalign={0}
                   vexpand={false} ellipsize={Pango.EllipsizeMode.END} label={
                       escapeUnintendedMarkup(notification.summary)}
                 />
 
-                <Gtk.Label class={"body"} useMarkup={true} xalign={0} wrap={true} hexpand
+                <Gtk.Label class={"body"} useMarkup xalign={0} wrap hexpand
                   vexpand wrapMode={Pango.WrapMode.WORD_CHAR} valign={Gtk.Align.START} label={
                       escapeUnintendedMarkup(notification.body)}
                 />

src/window/OSD.tsx

@@ -1,64 +1,106 @@
 import { Astal, Gtk } from "ags/gtk4";
-import { createBinding, createState } from "ags";
+import { Accessor, createBinding, createState, With } from "ags";
 import { Wireplumber } from "../modules/volume";
 import { Windows } from "../windows";
-import { Time, timeout } from "ags/time";
+import { Backlights } from "../modules/backlight";
+import { construct, variableToBoolean } from "../modules/utils";
 
+import GObject, { ParamSpec, property, register } from "ags/gobject";
 import Pango from "gi://Pango?version=1.0";
+import GLib from "gi://GLib?version=2.0";
 
 
-export enum OSDModes {
-    SINK,
-    BRIGHTNESS,
-    NONE
+@register({ GTypeName: "OSDMode" })
+export class OSDMode extends GObject.Object {
+    readonly #subs: Array<() => void> = [];
+    @property(String)
+    icon: string = "image-missing";
+    @property(Number)
+    value: number = 0;
+    @property(Number)
+    max: number = 100;
+    @property(String as unknown as ParamSpec<string|null>)
+    text: string|null = null;
+
+    constructor(props: {
+        icon: string | Accessor<string>;
+        value: number | Accessor<number>;
+        max?: number | Accessor<number>;
+        text?: string | Accessor<string>;
+    }) {
+        super();
+        this.#subs = construct(this, props);
+    }
+
+    vfunc_dispose(): void {
+        this.#subs.forEach(s => s());
+    }
 }
 
-const [osdMode, setOSDMode] = createState(OSDModes.NONE);
-let osdTimer: (Time|undefined), osdTimeout = 3500;
+export const OSDModes: Record<string, OSDMode> = {
+    SINK: new OSDMode({
+        icon: createBinding(Wireplumber.getWireplumber().defaultSpeaker, "volumeIcon"),
+        value: createBinding(Wireplumber.getWireplumber().defaultSpeaker, "volume"),
+        text: createBinding(Wireplumber.getWireplumber().defaultSpeaker, "description"),
+        max: Wireplumber.getDefault().getMaxSinkVolume() / 100
+    }),
+    BRIGHTNESS: Backlights.getDefault().available ? new OSDMode({
+            icon: "display-brightness-symbolic",
+            value: createBinding(Backlights.getDefault().default, "brightness"),
+            max: createBinding(Backlights.getDefault().default, "maxBrightness"),
+            text: createBinding(Backlights.getDefault().default, "name")
+        })
+    : new OSDMode({
+        icon: "display-brightness-symbolic",
+        value: 100,
+        max: 100,
+        text: "No Backlight found"
+    })
+}
 
-export const OSD = (mon: number) => {
-    if(osdMode.get() === OSDModes.NONE)
-        setOSDMode(OSDModes.SINK);
+const [osdMode, setOSDMode] = createState(OSDModes.SINK);
+let osdTimer: (GLib.Source|undefined), osdTimeout = 3500;
 
-    return <Astal.Window namespace={"osd"} class={"osd-window"} layer={Astal.Layer.OVERLAY}
+export const OSD = (mon: number) => 
+    <Astal.Window namespace={"osd"} class={"osd-window"} layer={Astal.Layer.OVERLAY}
       anchor={Astal.WindowAnchor.BOTTOM} focusable={false} marginBottom={80} monitor={mon}>
 
         <Gtk.Box class={"osd"}>
-            <Gtk.Image class={"icon"} iconName={createBinding(Wireplumber.getDefault().getDefaultSink(), 
-                  "volumeIcon").as(icon => !Wireplumber.getDefault().isMutedSink() && 
-                      Wireplumber.getDefault().getSinkVolume() > 0 ? icon : "audio-volume-muted-symbolic")}
-            />
-            <Gtk.Box orientation={Gtk.Orientation.VERTICAL} class={"volume"} vexpand={true} hexpand={true}>
-                <Gtk.Label class={"device"} label={createBinding(Wireplumber.getDefault().getDefaultSink(), 
-                      "description").as(description => description ?? "Speaker")}
-                  ellipsize={Pango.EllipsizeMode.END}
-                />
-                <Gtk.LevelBar class={"levelbar"} value={createBinding(
-                      Wireplumber.getDefault().getDefaultSink(), "volume")} 
-                  maxValue={Wireplumber.getDefault().getMaxSinkVolume() / 100}
-                />
-            </Gtk.Box>
+            <With value={osdMode}>
+                {(mode: OSDMode) => <Gtk.Box>
+                    <Gtk.Image class={"icon"} iconName={
+                        createBinding(mode, "icon")
+                    } />
+                    <Gtk.Box orientation={Gtk.Orientation.VERTICAL} class={"level"} vexpand hexpand>
+                        <Gtk.Label class={"text"} label={createBinding(mode, "text").as(t => t ?? "")}
+                          ellipsize={Pango.EllipsizeMode.END}
+                          visible={variableToBoolean(createBinding(mode, "text"))}
+                        />
+                        <Gtk.LevelBar value={createBinding(mode, "value")} hexpand
+                          maxValue={createBinding(mode, "max")}
+                        />
+                    </Gtk.Box>
+                </Gtk.Box>}
+            </With>
         </Gtk.Box>
-    </Astal.Window>
-}
-
-export function triggerOSD() {
-    if(Windows.getDefault().isOpen("control-center")) return;
+    </Astal.Window>;
 
+export function triggerOSD(mode: OSDMode) {
+    setOSDMode(mode);
     Windows.getDefault().open("osd");
 
     if(!osdTimer) {
-        osdTimer = timeout(osdTimeout, () => {
+        osdTimer = setTimeout(() => {
             osdTimer = undefined;
             Windows.getDefault().close("osd");
-        });
+        }, osdTimeout);
 
         return;
     }
 
-    osdTimer.cancel();
-    osdTimer = timeout(osdTimeout, () => {
+    osdTimer.destroy();
+    osdTimer = setTimeout(() => {
         Windows.getDefault().close("osd");
         osdTimer = undefined;
-    });
+    }, osdTimeout);
 }