feat: initial commit

widget/bar/battery.tsx

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+import { bind } from "astal";
+import AstalBattery from "gi://AstalBattery";
+
+export const Battery = () => {
+  const battery = AstalBattery.get_default();
+
+  return (
+    <box visible={bind(battery, "isPresent")}>
+      <image iconName={bind(battery, "batteryIconName")} />
+      <label
+        label={bind(battery, "percentage").as((p) => `${Math.floor(p * 100)}%`)}
+      />
+    </box>
+  );
+};

widget/bar/index.tsx

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+import { App, Astal, Gdk } from "astal/gtk4";
+import { FocusedClient, WorkspaceButton } from "./workspace";
+import { Battery } from "./battery";
+import { Launcher } from "./launcher";
+
+export const WINDOW_NAME = "bar";
+
+export const Bar = (gdkmonitor: Gdk.Monitor) => {
+  const { TOP, LEFT, RIGHT } = Astal.WindowAnchor;
+
+  return (
+    <window
+      name={WINDOW_NAME}
+      visible
+      cssClasses={["Bar"]}
+      gdkmonitor={gdkmonitor}
+      exclusivity={Astal.Exclusivity.EXCLUSIVE}
+      anchor={TOP | LEFT | RIGHT}
+      application={App}
+    >
+      <centerbox>
+        <Start />
+        <Center />
+        <End />
+      </centerbox>
+    </window>
+  );
+};
+
+const Start = () => {
+  return (
+    <box spacing={15}>
+      <Launcher />
+      <WorkspaceButton />
+    </box>
+  );
+};
+
+const Center = () => {
+  return <FocusedClient />;
+};
+
+const End = () => {
+  return <Battery />;
+};

widget/bar/launcher.tsx

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+import { App, Gtk } from "astal/gtk4";
+import { Gio } from "astal";
+import { Picture } from "../common";
+import { WINDOW_NAME } from "../app-launcher";
+
+export const Launcher = () => {
+  return (
+    <Gtk.ScrolledWindow
+      heightRequest={30}
+      widthRequest={30}
+      cssClasses={["launcher"]}
+    >
+      <button onClicked={() => App.toggle_window(WINDOW_NAME)}>
+        <Picture
+          file={Gio.file_new_for_path("/home/tux/Wallpapers/avatar.png")}
+          contentFit={Gtk.ContentFit.CONTAIN}
+          overflow={Gtk.Overflow.HIDDEN}
+        />
+      </button>
+    </Gtk.ScrolledWindow>
+  );
+};

widget/bar/workspace.tsx

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+import { Variable, bind } from "astal";
+import { Gtk } from "astal/gtk4";
+import { ButtonProps } from "astal/gtk4/widget";
+import AstalHyprland from "gi://AstalHyprland";
+
+type WsButtonProps = ButtonProps & {
+  ws: AstalHyprland.Workspace;
+};
+
+const Workspace = ({ ws, ...props }: WsButtonProps) => {
+  const hyprland = AstalHyprland.get_default();
+  const classNames = Variable.derive(
+    [bind(hyprland, "focusedWorkspace"), bind(hyprland, "clients")],
+    (fws, _) => {
+      const classes = ["workspace-button"];
+
+      const active = fws.id == ws.id;
+      active && classes.push("active");
+
+      const occupied = hyprland.get_workspace(ws.id)?.get_clients().length > 0;
+      occupied && classes.push("occupied");
+      return classes;
+    },
+  );
+
+  return (
+    <button
+      cssClasses={classNames()}
+      onDestroy={() => classNames.drop()}
+      valign={Gtk.Align.CENTER}
+      halign={Gtk.Align.CENTER}
+      onClicked={() => ws.focus()}
+      {...props}
+    />
+  );
+};
+
+export const WorkspaceButton = () => {
+  const range = Array.from({ length: 4 + 1 }, (_, i) => i);
+  return (
+    <box cssClasses={["workspace-container"]} spacing={4}>
+      {range.map((i) => (
+        <Workspace ws={AstalHyprland.Workspace.dummy(i + 1, null)} />
+      ))}
+    </box>
+  );
+};
+
+export const FocusedClient = () => {
+  const hyprland = AstalHyprland.get_default();
+  const title = bind(hyprland, "focusedClient")
+    .as((fcsClient) => fcsClient.title)
+    .toString();
+
+  return <label>{title}</label>;
+};