Add native shell launcher with themed search and browsing

shell/ferese-shell/Cargo.toml

@@ -6,6 +6,8 @@ license.workspace = true
 rust-version.workspace = true
 
 [dependencies]
+fff-search = "=0.11.0"
+mime_guess = "2.0.5"
 ferese-activities = { path = "../../crates/ferese-activities" }
 ferese-layout = { path = "../../crates/ferese-layout" }
 ferese-panel = { path = "../../crates/ferese-panel" }

shell/ferese-shell/src/config.rs

@@ -8,6 +8,7 @@ const DEFAULT_BACKGROUND: [u8; 3] = [11, 15, 20];
 
 #[derive(Clone, Debug)]
 pub(crate) struct ShellConfig {
+    pub(crate) terminal: Vec<String>,
     pub(crate) activities: ferese_config::activities::Settings,
     pub(crate) notifications: ferese_config::notifications::NotificationConfig,
     pub(crate) animations: crate::motion::Settings,
@@ -23,6 +24,7 @@ impl Default for ShellConfig {
     fn default() -> Self {
         let status = StatusConfig::default();
         Self {
+            terminal: vec!["foot".into()],
             activities: Default::default(),
             notifications: Default::default(),
             animations: Default::default(),
@@ -185,6 +187,8 @@ pub(crate) enum WallpaperMode {
 
 #[derive(Debug, Default, Deserialize)]
 struct FereseConfig {
+    #[serde(default)]
+    commands: std::collections::HashMap<String, Vec<String>>,
     #[serde(default)]
     activities: ferese_config::activities::Settings,
     #[serde(default)]
@@ -404,6 +408,11 @@ fn parse_document(
             theme.bar_radius = theme.material_radius;
 
             Ok(ShellConfig {
+                terminal: config
+                    .commands
+                    .get("terminal")
+                    .cloned()
+                    .unwrap_or_else(|| vec!["foot".into()]),
                 activities: config.activities,
                 notifications: config.notifications,
                 animations: config.animations,

shell/ferese-shell/src/control.rs

@@ -85,6 +85,9 @@ pub(crate) enum ControlCommand {
     Logout(u32, String),
     CancelLogout(u32),
     ToggleGuide(String),
+    ToggleLauncher(String),
+    DismissLauncher,
+    Thumbnail(u32, u64, Option<cosmic::widget::image::Handle>),
     ToggleDisplays(String),
     MonitorsChanged,
 }
@@ -128,6 +131,9 @@ enum ControlUpdate {
     Logout(u32, String),
     LogoutCancelled(u32),
     ToggleGuide(String),
+    ToggleLauncher(String),
+    DismissLauncher,
+    Thumbnail(u32, u64, Option<cosmic::widget::image::Handle>),
     ToggleDisplays(String),
     MonitorsChanged,
 }
@@ -137,7 +143,7 @@ impl ShellControl {
         let connection = control_connection()?;
         let (globals, mut queue) = registry_queue_init::<ControlState>(&connection)?;
         let qh = queue.handle();
-        let manager = globals.bind::<FereseShellManagerV1, _, _>(&qh, 7..=9, ())?;
+        let manager = globals.bind::<FereseShellManagerV1, _, _>(&qh, 7..=10, ())?;
         let shell = manager.get_shell(&qh, ());
         let (sender, updates) = mpsc::channel();
         let wake = Wake(Arc::new(tokio::sync::Notify::new()));
@@ -181,6 +187,11 @@ impl ShellControl {
                 Ok(ControlUpdate::Logout(serial, output)) => poll.commands.push(ControlCommand::Logout(serial, output)),
                 Ok(ControlUpdate::ToggleDisplays(output)) => poll.commands.push(ControlCommand::ToggleDisplays(output)),
                 Ok(ControlUpdate::MonitorsChanged) => poll.commands.push(ControlCommand::MonitorsChanged),
+                Ok(ControlUpdate::DismissLauncher) => poll.commands.push(ControlCommand::DismissLauncher),
+                Ok(ControlUpdate::Thumbnail(token, window, image)) => {
+                    poll.commands.push(ControlCommand::Thumbnail(token, window, image))
+                }
+                Ok(ControlUpdate::ToggleLauncher(output)) => poll.commands.push(ControlCommand::ToggleLauncher(output)),
                 Ok(ControlUpdate::ToggleGuide(output)) => poll.commands.push(ControlCommand::ToggleGuide(output)),
                 Ok(ControlUpdate::LogoutCancelled(serial)) => poll.commands.push(ControlCommand::CancelLogout(serial)),
                 Ok(ControlUpdate::Config(source)) => poll.config = Some(source),
@@ -195,6 +206,15 @@ impl ShellControl {
         }
     }
 
+    pub(crate) fn thumbnail(&self, token: u32, window: u64) {
+        if self.shell.version() < 10 {
+            return;
+        }
+        let (hi, lo) = split_id(window);
+        self.shell.thumbnail(token, hi, lo);
+        let _ = self.connection.flush();
+    }
+
     pub(crate) fn move_window_to_workspace(&self, window: u64, workspace: u64) {
         if self.shell.version() < 8 {
             return;
@@ -318,6 +338,47 @@ impl Dispatch<FereseShellV1, ()> for ControlState {
         _qh: &QueueHandle<Self>,
     ) {
         match event {
+            ferese_shell_v1::Event::DismissLauncher => {
+                let _ = state.sender.send(ControlUpdate::DismissLauncher);
+            }
+            ferese_shell_v1::Event::ThumbnailUnavailable {
+                token,
+                window_hi,
+                window_lo,
+            } => {
+                let _ = state
+                    .sender
+                    .send(ControlUpdate::Thumbnail(token, join_id(window_hi, window_lo), None));
+            }
+            ferese_shell_v1::Event::Thumbnail {
+                token,
+                window_hi,
+                window_lo,
+                width,
+                height,
+                pixels,
+            } => {
+                use std::io::Read;
+                let image = (|| {
+                    if width == 0 || width > 320 || height == 0 || height > 168 {
+                        return None;
+                    }
+                    let mut file = std::fs::File::from(pixels);
+                    let size = (width * height * 4) as usize;
+                    if file.metadata().ok()?.len() != size as u64 {
+                        return None;
+                    }
+                    let mut bytes = vec![0; size];
+                    file.read_exact(&mut bytes).ok()?;
+                    Some(cosmic::widget::image::Handle::from_rgba(width, height, bytes))
+                })();
+                let _ = state
+                    .sender
+                    .send(ControlUpdate::Thumbnail(token, join_id(window_hi, window_lo), image));
+            }
+            ferese_shell_v1::Event::ToggleLauncher { output_name } => {
+                let _ = state.sender.send(ControlUpdate::ToggleLauncher(output_name));
+            }
             ferese_shell_v1::Event::ConfigBegin => state.config = Some(String::new()),
             ferese_shell_v1::Event::ConfigChunk { source } => {
                 append_config_chunk(&mut state.config, &source);

shell/ferese-shell/src/launcher/apps.rs

@@ -0,0 +1,161 @@
+use super::sources::{Matcher, ResultId, Row, Source, Target};
+use serde::{Deserialize, Serialize};
+use std::collections::{HashMap, HashSet};
+use std::path::PathBuf;
+
+#[derive(Clone, Debug)]
+pub(crate) struct Apps {
+    rows: Vec<Row>,
+    normalized_names: Vec<String>,
+    by_id: HashMap<String, usize>,
+}
+
+#[derive(Default, Deserialize, Serialize)]
+struct Usage {
+    count: u64,
+    last: u64,
+}
+fn state_path() -> Option<PathBuf> {
+    std::env::var_os("XDG_STATE_HOME")
+        .map(PathBuf::from)
+        .or_else(|| std::env::var_os("HOME").map(|home| PathBuf::from(home).join(".local/state")))
+        .map(|path| path.join("ferese/launcher-apps.json"))
+}
+fn history() -> HashMap<String, Usage> {
+    state_path()
+        .and_then(|path| {
+            use std::io::Read;
+            let mut bytes = Vec::new();
+            std::fs::File::open(path)
+                .ok()?
+                .take(1024 * 1024 + 1)
+                .read_to_end(&mut bytes)
+                .ok()?;
+            (bytes.len() <= 1024 * 1024).then_some(bytes)
+        })
+        .and_then(|bytes| serde_json::from_slice(&bytes).ok())
+        .unwrap_or_default()
+}
+fn now() -> u64 {
+    std::time::SystemTime::now()
+        .duration_since(std::time::UNIX_EPOCH)
+        .unwrap_or_default()
+        .as_secs()
+}
+impl Apps {
+    fn entry(&self, app_id: &str) -> Option<&Row> {
+        self.by_id
+            .get(&app_id.trim_end_matches(".desktop").to_ascii_lowercase())
+            .map(|index| &self.rows[*index])
+    }
+    pub(super) fn name(&self, app_id: &str) -> Option<&str> {
+        self.entry(app_id).map(|row| row.title.as_str())
+    }
+    pub(super) fn icon(&self, app_id: &str) -> Option<cosmic::widget::icon::Handle> {
+        self.entry(app_id)?.icon.clone()
+    }
+    pub(super) fn empty() -> Self {
+        Self {
+            rows: Vec::new(),
+            normalized_names: Vec::new(),
+            by_id: HashMap::new(),
+        }
+    }
+    pub(super) fn load(cancel: &super::work::Cancellation) -> Self {
+        use freedesktop_desktop_entry as fde;
+        let locales = fde::get_languages_from_env();
+        let desktops = std::env::var("XDG_CURRENT_DESKTOP").unwrap_or_else(|_| "Ferese".into());
+        let desktops: Vec<_> = desktops.split(':').collect();
+        let mut seen = HashSet::new();
+        let usage = history();
+        let now = now();
+        let rows: Vec<Row> = fde::Iter::new(fde::default_paths())
+            .entries(Some(&locales))
+            .take_while(|_| !cancel.cancelled())
+            .filter(|entry| seen.insert(entry.appid.clone()))
+            .filter(|entry| !entry.hidden() && !entry.no_display())
+            .filter(|entry| {
+                entry
+                    .only_show_in()
+                    .is_none_or(|names| names.iter().any(|name| desktops.contains(name)))
+            })
+            .filter(|entry| {
+                entry
+                    .not_show_in()
+                    .is_none_or(|names| !names.iter().any(|name| desktops.contains(name)))
+            })
+            .filter_map(|entry| {
+                let title = entry.name(&locales)?.into_owned();
+                let score = usage.get(&entry.appid).map_or(0., |usage| {
+                    let age = now.saturating_sub(usage.last) as f64 / 86400.;
+                    (usage.count as f64).ln_1p() * 8. + 40. / (1. + age)
+                });
+                Some(Row {
+                    id: ResultId::App(entry.appid.as_str().into()),
+                    icon: Some(super::icons::resolve(
+                        entry.icon().unwrap_or("application-x-executable"),
+                        "application-x-executable",
+                    )),
+                    title,
+                    subtitle: "Application".into(),
+                    target: Target::App {
+                        id: entry.appid,
+                        desktop: entry.path,
+                    },
+                    score,
+                })
+            })
+            .collect();
+        if cancel.cancelled() {
+            return Self::empty();
+        }
+        let normalized_names = rows.iter().map(|row| row.title.to_lowercase()).collect();
+        let by_id = rows
+            .iter()
+            .enumerate()
+            .filter_map(|(index, row)| match &row.target {
+                Target::App { id, .. } => Some((id.to_ascii_lowercase(), index)),
+                _ => None,
+            })
+            .collect();
+        Self {
+            rows,
+            normalized_names,
+            by_id,
+        }
+    }
+}
+impl Apps {
+    pub(super) fn search(&self, query: &str, cancel: &super::work::Cancellation) -> Vec<Row> {
+        let matcher = Matcher::new(query);
+        self.rows
+            .iter()
+            .zip(&self.normalized_names)
+            .take_while(|_| !cancel.cancelled())
+            .filter_map(|(row, name)| {
+                let score = matcher.normalized(name)?;
+                let mut row = row.clone();
+                row.score += score;
+                Some(row)
+            })
+            .collect()
+    }
+}
+impl Source for Apps {
+    fn query(&self, query: &str) -> Vec<Row> {
+        self.search(query, &Default::default())
+    }
+}
+pub(super) fn record(id: &str) -> Result<(), String> {
+    let path = state_path().ok_or("No state directory")?;
+    let parent = path.parent().ok_or("Invalid state directory")?;
+    std::fs::create_dir_all(parent).map_err(|e| e.to_string())?;
+    let mut history = history();
+    let usage = history.entry(id.into()).or_default();
+    usage.count = usage.count.saturating_add(1);
+    usage.last = now();
+    let mut file = tempfile::NamedTempFile::new_in(parent).map_err(|e| e.to_string())?;
+    serde_json::to_writer(file.as_file_mut(), &history).map_err(|e| e.to_string())?;
+    file.persist(path).map_err(|e| e.to_string())?;
+    Ok(())
+}

shell/ferese-shell/src/launcher/files.rs

@@ -0,0 +1,160 @@
+use super::sources::{Matcher, ResultId, Row, Source, Target};
+use fff_search::{
+    FilePicker, FilePickerOptions, FuzzySearchOptions, PaginationArgs, QueryParser, SharedFilePicker, SharedFrecency,
+};
+use std::sync::{Arc, OnceLock};
+
+#[derive(Clone, Debug, Default)]
+pub(crate) enum Status {
+    #[default]
+    Ready,
+    Indexing,
+    Unavailable(String),
+}
+impl Status {
+    pub(super) fn message(&self) -> Option<&str> {
+        match self {
+            Self::Ready => None,
+            Self::Indexing => Some("Indexing files…"),
+            Self::Unavailable(error) => Some(error),
+        }
+    }
+}
+
+#[derive(Clone, Default)]
+pub(crate) struct Files(Arc<OnceLock<Result<SharedFilePicker, String>>>);
+impl Files {
+    fn picker(&self) -> Result<&SharedFilePicker, &str> {
+        self.0
+            .get_or_init(|| {
+                let home = std::env::var_os("HOME").ok_or_else(|| "No home directory".to_string())?;
+                let home = std::fs::canonicalize(home).map_err(|e| e.to_string())?;
+                if home.parent().is_none() {
+                    return Err("The filesystem root cannot be indexed".into());
+                }
+                let base_path = home
+                    .into_os_string()
+                    .into_string()
+                    .map_err(|_| "Home directory is not UTF-8".to_string())?;
+                let shared = SharedFilePicker::default();
+                FilePicker::new_with_shared_state(
+                    shared.clone(),
+                    SharedFrecency::default(),
+                    FilePickerOptions {
+                        base_path,
+                        enable_home_dir_scanning: true,
+                        ..Default::default()
+                    },
+                )
+                .map_err(|error| error.to_string())?;
+                Ok(shared)
+            })
+            .as_ref()
+            .map_err(String::as_str)
+    }
+    pub(super) fn status(&self) -> Status {
+        match self.0.get() {
+            Some(Err(error)) => Status::Unavailable(format!("File search unavailable: {error}")),
+            Some(Ok(picker)) if !picker.wait_for_scan(std::time::Duration::ZERO) => Status::Indexing,
+            _ => Status::Ready,
+        }
+    }
+}
+impl Files {
+    pub(super) fn search(
+        &self,
+        query: &str,
+        cancel: &super::work::Cancellation,
+        icons: &std::sync::Mutex<super::icons::FileIcons>,
+    ) -> Vec<Row> {
+        if cancel.cancelled() {
+            return Vec::new();
+        }
+        let Ok(shared) = self.picker() else {
+            return Vec::new();
+        };
+        if cancel.cancelled() {
+            return Vec::new();
+        }
+        let paths = {
+            let Ok(guard) = shared.read() else {
+                return Vec::new();
+            };
+            if cancel.cancelled() {
+                return Vec::new();
+            }
+            let Some(picker) = guard.as_ref() else {
+                return Vec::new();
+            };
+            let parser = QueryParser::default();
+            let parsed = parser.parse(query);
+            picker
+                .fuzzy_search(
+                    &parsed,
+                    None,
+                    FuzzySearchOptions {
+                        max_threads: 2,
+                        pagination: PaginationArgs { offset: 0, limit: 100 },
+                        ..Default::default()
+                    },
+                )
+                .items
+                .into_iter()
+                .take_while(|_| !cancel.cancelled())
+                .map(|item| item.absolute_path(picker, &picker.base_path))
+                .collect::<Vec<_>>()
+        };
+        // Filesystem/icon work must not hold the picker's read lock.
+        let matcher = Matcher::new(query);
+        let mut icons = icons.lock().unwrap_or_else(|error| error.into_inner());
+        paths
+            .into_iter()
+            .take_while(|_| !cancel.cancelled())
+            .map(|path| {
+                let title = path.file_name().unwrap_or_default().to_string_lossy().into_owned();
+                let icon = Some(icons.file(&path));
+                let subtitle = format!("File · {}", path.parent().unwrap_or(&path).display());
+                let path: Arc<std::path::Path> = path.into();
+                Row {
+                    id: ResultId::File(path.clone()),
+                    score: matcher.score(&title).unwrap_or(200.),
+                    icon,
+                    title,
+                    subtitle,
+                    target: Target::File(path),
+                }
+            })
+            .collect()
+    }
+}
+impl Source for Files {
+    fn query(&self, query: &str) -> Vec<Row> {
+        self.search(query, &Default::default(), &Default::default())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn index_is_lazy_and_queries_use_the_file_picker() {
+        assert!(Files::default().0.get().is_none());
+        let directory = tempfile::tempdir().unwrap();
+        std::fs::write(directory.path().join("launcher-note.txt"), "note").unwrap();
+        let shared = SharedFilePicker::default();
+        FilePicker::new_with_shared_state(
+            shared.clone(),
+            SharedFrecency::default(),
+            FilePickerOptions {
+                base_path: directory.path().to_string_lossy().into_owned(),
+                ..Default::default()
+            },
+        )
+        .unwrap();
+        assert!(shared.wait_for_scan(std::time::Duration::from_secs(10)));
+        let files = Files(Arc::new(OnceLock::from(Ok(shared))));
+        let matches = files.query("launcher-note");
+        assert!(matches.iter().any(|row| row.title == "launcher-note.txt"));
+        assert!(files.query("no-such-file-xyz").is_empty());
+    }
+}

shell/ferese-shell/src/launcher/icons.rs

@@ -0,0 +1,40 @@
+use cosmic::widget::icon;
+use std::path::Path;
+
+pub(super) fn resolve(name: &str, fallback: &'static str) -> icon::Handle {
+    if Path::new(name).is_absolute() {
+        icon::from_path(name.into())
+    } else {
+        icon::from_name(name.to_owned())
+            .prefer_svg(true)
+            .size(32)
+            .fallback(Some(icon::IconFallback::Names(vec![fallback.into()])))
+            .handle()
+    }
+}
+
+#[derive(Default)]
+pub(super) struct FileIcons(std::collections::HashMap<String, icon::Handle>);
+impl FileIcons {
+    pub(super) fn file(&mut self, path: &Path) -> icon::Handle {
+        let mime = mime_guess::from_path(path).first_or_octet_stream();
+        if let Some(handle) = self.0.get(mime.essence_str()) {
+            return handle.clone();
+        }
+        let name = mime.essence_str().replace('/', "-");
+        let generic = format!("{}-x-generic", mime.type_());
+        let handle = icon::from_name(name)
+            .prefer_svg(true)
+            .size(32)
+            .fallback(Some(icon::IconFallback::Names(vec![
+                generic.into(),
+                "text-x-generic".into(),
+            ])))
+            .handle();
+        // The cache belongs to one invocation and has a fixed upper bound.
+        if self.0.len() < 64 {
+            self.0.insert(mime.essence_str().into(), handle.clone());
+        }
+        handle
+    }
+}

shell/ferese-shell/src/launcher/launch.rs

@@ -0,0 +1,135 @@
+use super::{Target, apps, sources};
+use crate::compositor_ipc;
+
+pub(super) fn run(target: Target, terminal: &[String]) -> Result<(), String> {
+    use sources::Action;
+    let mut command = match target {
+        Target::App { id, desktop } => {
+            let entry = freedesktop_desktop_entry::DesktopEntry::from_path(&desktop, None::<&[&str]>)
+                .map_err(|e| e.to_string())?;
+            let result = if entry.terminal() {
+                let arguments = entry.parse_exec().map_err(|e| e.to_string())?;
+                let mut command = terminal_command(terminal)?;
+                command.args(arguments);
+                if let Some(path) = entry.path() {
+                    command.current_dir(path);
+                }
+                spawn(&mut command)
+            } else {
+                open("gio", &[std::ffi::OsStr::new("launch"), desktop.as_os_str()])
+            };
+            if result.is_ok() {
+                if let Err(error) = apps::record(&id) {
+                    eprintln!("Could not save launcher history: {error}");
+                }
+            }
+            return result;
+        }
+        Target::File(path) => return open("gio", &[std::ffi::OsStr::new("open"), path.as_os_str()]),
+        Target::Action(action @ (Action::Light | Action::Dark | Action::Auto)) => {
+            return compositor_ipc::request("theme-set-mode",serde_json::json!({"mode": match action { Action::Light => "light", Action::Dark => "dark", _ => "auto" }})).map(|_|());
+        }
+        Target::Action(Action::Logout) => {
+            return compositor_ipc::request("request-logout", serde_json::json!({})).map(|_| ());
+        }
+        Target::Action(Action::Lock) => std::process::Command::new("ferese-lock"),
+        Target::Action(Action::Screenshot) => return screenshot(),
+        _ => return Err("Action unavailable".into()),
+    };
+    spawn(&mut command)
+}
+fn terminal_command(terminal: &[String]) -> Result<std::process::Command, String> {
+    let (program, options) = terminal
+        .split_first()
+        .filter(|(program, _)| !program.is_empty())
+        .ok_or("No terminal command configured")?;
+    let mut command = std::process::Command::new(program);
+    command.args(options);
+    let name = std::path::Path::new(program)
+        .file_name()
+        .and_then(|name| name.to_str())
+        .unwrap_or(program);
+    match name {
+        "foot" | "footclient" | "kitty" | "gnome-terminal" | "kgx" => {
+            command.arg("--");
+        }
+        "wezterm" if !options.iter().any(|option| option == "start") => {
+            command.args(["start", "--"]);
+        }
+        "wezterm" => {
+            command.arg("--");
+        }
+        _ => {
+            command.arg("-e");
+        }
+    }
+    Ok(command)
+}
+
+fn open(program: &str, args: &[&std::ffi::OsStr]) -> Result<(), String> {
+    let mut command = std::process::Command::new(program);
+    command.args(args);
+    public_environment(&mut command);
+    use std::io::{Read, Seek};
+    let mut stderr = tempfile::tempfile().map_err(|e| e.to_string())?;
+    command
+        .stdout(std::process::Stdio::null())
+        .stderr(stderr.try_clone().map_err(|e| e.to_string())?);
+    // Waiting for gio's status must not wait for an application's inherited pipes.
+    let status = command.status().map_err(|e| e.to_string())?;
+    if status.success() {
+        return Ok(());
+    }
+    stderr.rewind().map_err(|e| e.to_string())?;
+    let mut error = String::new();
+    let _ = stderr.take(1024).read_to_string(&mut error);
+    if error.trim().is_empty() {
+        Err(format!("{program} exited with {status}"))
+    } else {
+        Err(error.trim().chars().take(240).collect())
+    }
+}
+fn public_environment(command: &mut std::process::Command) {
+    command
+        .stdin(std::process::Stdio::null())
+        .env_remove("WAYLAND_SOCKET")
+        .env_remove("FERESE_SHELL_CONTROL_SOCKET");
+    if let Some(display) = std::env::var_os("FERESE_PUBLIC_WAYLAND_DISPLAY") {
+        command.env("WAYLAND_DISPLAY", display);
+    }
+}
+fn spawn(command: &mut std::process::Command) -> Result<(), String> {
+    public_environment(command);
+    let mut child = command.spawn().map_err(|e| e.to_string())?;
+    std::thread::spawn(move || {
+        let _ = child.wait();
+    });
+    Ok(())
+}
+
+fn screenshot() -> Result<(), String> {
+    let home = std::env::var_os("HOME").ok_or("No home directory")?;
+    let directory = std::path::PathBuf::from(home).join("Pictures/Screenshots");
+    std::fs::create_dir_all(&directory).map_err(|e| e.to_string())?;
+    let file = tempfile::Builder::new()
+        .prefix("Ferese-")
+        .suffix(".png")
+        .tempfile_in(&directory)
+        .map_err(|e| e.to_string())?;
+    let mut command = std::process::Command::new("feresectl");
+    command
+        .arg("screenshot")
+        .stdout(file.reopen().map_err(|e| e.to_string())?)
+        .stderr(std::process::Stdio::piped());
+    public_environment(&mut command);
+    let output = command.output().map_err(|e| e.to_string())?;
+    if !output.status.success() {
+        return Err(String::from_utf8_lossy(&output.stderr)
+            .trim()
+            .chars()
+            .take(240)
+            .collect());
+    }
+    file.keep().map_err(|e| e.to_string())?;
+    Ok(())
+}

shell/ferese-shell/src/launcher/mod.rs

@@ -0,0 +1,675 @@
+mod apps;
+pub(super) mod files;
+mod icons;
+mod launch;
+mod sources;
+#[cfg(test)]
+mod tests;
+mod thumbnails;
+mod view;
+mod work;
+
+use super::*;
+use cosmic::iced::keyboard::{Key, key::Named};
+use ferese_animation::{AnimatedValue, SpringConfig};
+use sources::{Category, Row, Source, Target};
+use std::sync::Arc;
+
+#[derive(Clone, Debug)]
+pub(super) enum Message {
+    Input(window::Id, String),
+    Browse(window::Id, Category),
+    ActivateRow(window::Id, sources::ResultId),
+    Accept(bool),
+    Tick,
+    AppsScrolled(window::Id, usize),
+    Loaded(window::Id, Arc<apps::Apps>),
+    Results(window::Id, u64, Vec<Row>, files::Status),
+    Launched(window::Id, Result<(), String>),
+    Finished(Result<(), String>),
+}
+
+pub(super) struct Launcher {
+    pub id: window::Id,
+    pub(super) output: String,
+    top: f32,
+    input: cosmic::widget::Id,
+    query: String,
+    category: Option<Category>,
+    alternatives: bool,
+    category_focused: bool,
+    ghost_visible: bool,
+    selected: usize,
+    rows: Vec<Row>,
+    apps: Option<Arc<apps::Apps>>,
+    revision: u64,
+    running: bool,
+    activating: bool,
+    after_close: Option<Target>,
+    error: Option<String>,
+    file_status: files::Status,
+    preferred_result: Option<sources::ResultId>,
+    closing: bool,
+    keyboard_nav: bool,
+    progress: AnimatedValue,
+    height: AnimatedValue,
+    tick: Instant,
+    thumbnails: thumbnails::Thumbnails,
+    effects: Option<EffectsBinding>,
+    regions: motion::Regions,
+    refresh: Instant,
+    lifetime: work::Cancellation,
+    search_cancel: work::Cancellation,
+    file_icons: Arc<std::sync::Mutex<icons::FileIcons>>,
+    apps_first_row: usize,
+    windows: sources::Windows,
+    apps_scroll_id: cosmic::widget::Id,
+}
+impl Launcher {
+    fn status_message(&self) -> Option<&str> {
+        self.error.as_deref().or_else(|| self.file_status.message())
+    }
+    fn apps_browse(&self) -> bool {
+        self.query.is_empty() && self.category == Some(Category::Apps)
+    }
+    fn target_height(&self) -> f64 {
+        if self.query.is_empty() && self.category.is_none() {
+            72.
+        } else if self.query.is_empty() && self.category == Some(Category::Windows) {
+            220.
+        } else if self.apps_browse() {
+            80. + self.rows.len().div_ceil(4).clamp(1, 3) as f64 * 108.
+        } else if self.alternatives || (self.query.is_empty() && self.category.is_some()) {
+            88. + self.rows.len().clamp(1, 5) as f64 * 60.
+        } else {
+            72.
+        }
+    }
+    fn changed(&mut self) {
+        self.search_cancel.cancel();
+        self.apps_first_row = 0;
+        self.revision = self.revision.wrapping_add(1);
+        self.error = None;
+        self.file_status = files::Status::Ready;
+        self.preferred_result = None;
+        self.selected = 0;
+        self.category_focused = false;
+        self.rows.clear();
+    }
+    fn escape(&mut self) -> bool {
+        if !self.query.is_empty() {
+            self.query.clear();
+            self.alternatives = false;
+            self.changed();
+            false
+        } else if self.category.take().is_some() {
+            self.alternatives = false;
+            self.changed();
+            false
+        } else {
+            true
+        }
+    }
+}
+impl FereseShell {
+    pub(super) fn attach_launcher_effects(&mut self, id: window::Id, surface: &wl_surface::WlSurface) {
+        let Some(launcher) = self.launcher.as_mut().filter(|launcher| launcher.id == id) else {
+            return;
+        };
+        if launcher.effects.is_none() {
+            match EffectsBinding::attach_role(&mut self.effects_context, surface, None, 0.) {
+                Ok(binding) => launcher.effects = Some(binding),
+                Err(error) => eprintln!("ferese-shell: launcher material unavailable: {error}"),
+            }
+        }
+    }
+    pub(super) fn toggle_launcher(&mut self, name: String) -> Task<super::Message> {
+        if self.launcher.is_some() {
+            return self.close_launcher();
+        }
+        let Some(output) = self
+            .outputs
+            .iter()
+            .find(|o| o.name.as_deref() == Some(&name))
+            .or_else(|| self.outputs.first())
+        else {
+            return Task::none();
+        };
+        let name = output.name.clone().unwrap_or(name);
+        let wl_output = output.output.clone();
+        let top = output.size.map_or(240., |(_, h)| h as f32 * 0.3);
+        let dismissed = Task::batch([self.destroy_menu(), self.destroy_system_modal(true)]);
+        let id = window::Id::unique();
+        let mut progress = AnimatedValue::new(0.);
+        progress.set_target(1.);
+        if !self.render.motion.motion_enabled() {
+            progress.snap();
+        }
+        let lifetime = work::Cancellation::default();
+        let load_cancel = lifetime.clone();
+        self.launcher = Some(Launcher {
+            id,
+            output: name,
+            top,
+            input: cosmic::widget::Id::unique(),
+            query: String::new(),
+            category: None,
+            alternatives: false,
+            category_focused: false,
+            ghost_visible: true,
+            selected: 0,
+            rows: Vec::new(),
+            apps: None,
+            revision: 0,
+            running: false,
+            activating: false,
+            after_close: None,
+            error: None,
+            file_status: files::Status::Ready,
+            preferred_result: None,
+            closing: false,
+            keyboard_nav: self.core.keyboard_nav(),
+            progress,
+            height: AnimatedValue::new(72.),
+            tick: Instant::now(),
+            thumbnails: Default::default(),
+            effects: None,
+            regions: Default::default(),
+            refresh: Instant::now(),
+            lifetime,
+            search_cancel: Default::default(),
+            file_icons: Default::default(),
+            apps_first_row: 0,
+            windows: Default::default(),
+            apps_scroll_id: cosmic::widget::Id::unique(),
+        });
+        self.core.set_keyboard_nav(false);
+        let surface = cosmic::surface::action::app_layer_shell::<Self>(
+            |_| Default::default(),
+            move |_| SctkLayerSurfaceSettings {
+                id,
+                layer: Layer::Overlay,
+                keyboard_interactivity: KeyboardInteractivity::Exclusive,
+                anchor: Anchor::TOP | Anchor::BOTTOM | Anchor::LEFT | Anchor::RIGHT,
+                output: IcedOutput::Output(wl_output.clone()),
+                namespace: "ferese-launcher".into(),
+                exclusive_zone: -1,
+                size: Some((None, None)),
+                ..Default::default()
+            },
+            Some(Box::new(move |app| app.view_launcher(id))),
+        );
+        Task::batch([
+            dismissed,
+            cosmic::task::message(cosmic::Action::Surface(surface)),
+            Task::perform(
+                async move {
+                    tokio::task::spawn_blocking(move || apps::Apps::load(&load_cancel))
+                        .await
+                        .map(Arc::new)
+                        .unwrap_or_else(|_| Arc::new(apps::Apps::empty()))
+                },
+                move |apps| cosmic::Action::App(super::Message::Launcher(Message::Loaded(id, apps))),
+            ),
+        ])
+    }
+    pub(super) fn destroy_launcher(&mut self) -> Task<super::Message> {
+        let Some(launcher) = self.launcher.take() else {
+            return Task::none();
+        };
+        launcher.lifetime.cancel();
+        launcher.search_cancel.cancel();
+        self.core.set_keyboard_nav(launcher.keyboard_nav);
+        destroy_layer_surface(launcher.id)
+    }
+    fn close_launcher(&mut self) -> Task<super::Message> {
+        let Some(launcher) = &mut self.launcher else {
+            return Task::none();
+        };
+        launcher.lifetime.cancel();
+        launcher.search_cancel.cancel();
+        launcher.closing = true;
+        launcher.progress.set_target(0.);
+        if !self.render.motion.motion_enabled() {
+            return self.finish_launcher();
+        }
+        Task::none()
+    }
+    fn finish_launcher(&mut self) -> Task<super::Message> {
+        let target = self.launcher.as_mut().and_then(|l| l.after_close.take());
+        let close = self.destroy_launcher();
+        if let Some(target) = target {
+            let terminal = self.config.terminal.clone();
+            close.chain(Task::perform(
+                async move {
+                    tokio::time::sleep(Duration::from_millis(100)).await;
+                    tokio::task::spawn_blocking(move || launch::run(target, &terminal))
+                        .await
+                        .unwrap_or_else(|e| Err(e.to_string()))
+                },
+                |result| cosmic::Action::App(super::Message::Launcher(Message::Finished(result))),
+            ))
+        } else {
+            close
+        }
+    }
+    pub(super) fn launcher_subscription(&self) -> Subscription<super::Message> {
+        let Some(launcher) = &self.launcher else {
+            return Subscription::none();
+        };
+        let interval = if launcher.progress.is_animating() || launcher.height.needs_update(launcher.target_height()) {
+            16
+        } else if launcher.category == Some(Category::Windows) && launcher.query.is_empty() {
+            500
+        } else if matches!(launcher.file_status, files::Status::Indexing) {
+            1000
+        } else {
+            return Subscription::none();
+        };
+        cosmic::iced::time::every(Duration::from_millis(interval)).map(|_| super::Message::Launcher(Message::Tick))
+    }
+    pub(super) fn refresh_launcher(&mut self) -> Task<super::Message> {
+        self.merge_launcher_windows(false)
+    }
+    fn merge_launcher_windows(&mut self, force: bool) -> Task<super::Message> {
+        let Some(launcher) = &mut self.launcher else {
+            return Task::none();
+        };
+        if launcher.closing
+            || (launcher.query.is_empty() && launcher.category.is_none())
+            || !launcher.category.is_none_or(|category| category == Category::Windows)
+        {
+            return Task::none();
+        }
+        let changed = launcher
+            .windows
+            .sync(&self.snapshot, launcher.apps.as_deref(), &launcher.query);
+        if !changed && !force {
+            return Task::none();
+        }
+        let selected = launcher.rows.get(launcher.selected).map(|row| row.id.clone());
+        launcher.rows.retain(|row| !matches!(row.target, Target::Window(_)));
+        launcher.rows.extend(launcher.windows.rows().cloned());
+        sources::rank(&mut launcher.rows);
+        if launcher.category.is_none() {
+            launcher.rows.truncate(100);
+        }
+        launcher.selected = selected
+            .and_then(|id| launcher.rows.iter().position(|row| row.id == id))
+            .unwrap_or(0);
+        Task::none()
+    }
+    fn query_launcher(&mut self) -> Task<super::Message> {
+        let Some(launcher) = &mut self.launcher else {
+            return Task::none();
+        };
+        if launcher.running || launcher.closing || (launcher.query.is_empty() && launcher.category.is_none()) {
+            return Task::none();
+        }
+        let Some(apps) = launcher.apps.clone() else {
+            return Task::none();
+        };
+        launcher.running = true;
+        launcher.search_cancel = work::Cancellation::default();
+        let cancel = launcher.search_cancel.clone();
+        let file_icons = launcher.file_icons.clone();
+        let (id, revision, query, category) = (
+            launcher.id,
+            launcher.revision,
+            launcher.query.clone(),
+            launcher.category,
+        );
+        let files = self.launcher_files.clone();
+        Task::perform(
+            async move {
+                tokio::task::spawn_blocking(move || {
+                    let mut rows = Vec::new();
+                    if !cancel.cancelled() && category.is_none_or(|c| c == Category::Apps) {
+                        rows.extend(apps.search(&query, &cancel));
+                    }
+                    if !cancel.cancelled() && category.is_none_or(|c| c == Category::Files) {
+                        rows.extend(files.search(&query, &cancel, &file_icons));
+                    }
+                    if !cancel.cancelled() && category.is_none() {
+                        rows.extend(sources::Actions.query(&query));
+                    }
+                    if cancel.cancelled() {
+                        return (Vec::new(), files::Status::Ready);
+                    }
+                    sources::rank(&mut rows);
+                    if category.is_none() {
+                        rows.truncate(100);
+                    }
+                    (
+                        rows,
+                        if category.is_none_or(|c| c == Category::Files) {
+                            files.status()
+                        } else {
+                            files::Status::Ready
+                        },
+                    )
+                })
+                .await
+                .unwrap_or_else(|e| (Vec::new(), files::Status::Unavailable(e.to_string())))
+            },
+            move |(rows, status)| {
+                cosmic::Action::App(super::Message::Launcher(Message::Results(id, revision, rows, status)))
+            },
+        )
+    }
+    pub(super) fn update_launcher(&mut self, message: Message) -> Task<super::Message> {
+        if let Message::Finished(result) = message {
+            if let Err(error) = result {
+                self.notifications.service_error("Launcher action failed", &error);
+            }
+            return Task::none();
+        }
+        let Some(launcher) = &mut self.launcher else {
+            return Task::none();
+        };
+        match message {
+            Message::AppsScrolled(id, first) if id == launcher.id && launcher.apps_browse() => {
+                launcher.apps_first_row = first.min(launcher.rows.len().div_ceil(4).saturating_sub(1));
+                Task::none()
+            }
+            Message::Input(id, query) if id == launcher.id && !launcher.closing => {
+                launcher.ghost_visible = launcher.query.starts_with(&query) || query.starts_with(&launcher.query);
+                launcher.query = query;
+                launcher.alternatives = false;
+                launcher.changed();
+                self.query_launcher()
+            }
+            Message::Browse(id, category) if id == launcher.id && !launcher.closing => {
+                launcher.category = Some(category);
+                launcher.query.clear();
+                launcher.alternatives = false;
+                launcher.changed();
+                launcher.thumbnails = Default::default();
+                let focus = cosmic::widget::text_input::focus(launcher.input.clone());
+                Task::batch([focus, self.query_launcher()])
+            }
+            Message::ActivateRow(id, row) if id == launcher.id && !launcher.closing => {
+                let Some(index) = launcher.rows.iter().position(|candidate| candidate.id == row) else {
+                    return Task::none();
+                };
+                launcher.selected = index;
+                self.activate_launcher(false)
+            }
+            Message::Accept(alt) => self.activate_launcher(alt),
+            Message::Loaded(id, apps) if id == launcher.id => {
+                launcher.apps = Some(apps);
+                self.query_launcher()
+            }
+            Message::Results(id, revision, rows, status) if id == launcher.id => {
+                launcher.running = false;
+                if revision != launcher.revision {
+                    return self.query_launcher();
+                }
+                let selected = launcher
+                    .preferred_result
+                    .take()
+                    .or_else(|| launcher.rows.get(launcher.selected).map(|row| row.id.clone()));
+                launcher.rows = rows;
+                launcher.file_status = status;
+                let task = self.merge_launcher_windows(true);
+                let launcher = self.launcher.as_mut().unwrap();
+                launcher.selected = selected
+                    .and_then(|id| launcher.rows.iter().position(|row| row.id == id))
+                    .unwrap_or(0);
+                task
+            }
+            Message::Launched(id, result) if id == launcher.id => match result {
+                Ok(()) => self.close_launcher(),
+                Err(error) => {
+                    launcher.activating = false;
+                    launcher.error = Some(error);
+                    Task::none()
+                }
+            },
+            Message::Tick => {
+                let now = Instant::now();
+                let delta = now
+                    .duration_since(launcher.tick)
+                    .min(Duration::from_millis(64))
+                    .mul_f64(self.render.motion.speed);
+                launcher.tick = now;
+                let base = self.render.motion.spring_config().unwrap_or_default();
+                let stiffness = base.stiffness * if launcher.closing { 1.6 } else { 1. };
+                let spring = SpringConfig {
+                    stiffness,
+                    damping: 2. * (stiffness * base.mass).sqrt(),
+                    position_tolerance: 0.001,
+                    velocity_tolerance: 0.001,
+                    crossing: ferese_animation::CrossingPolicy::NoCrossing,
+                    ..base
+                };
+                launcher.height.set_target(launcher.target_height());
+                if self.render.motion.motion_enabled() {
+                    launcher.progress.advance(delta, spring);
+                    launcher.height.advance(delta, spring);
+                } else {
+                    launcher.progress.snap();
+                    launcher.height.snap();
+                }
+                if launcher.closing && !launcher.progress.is_animating() {
+                    return self.finish_launcher();
+                }
+                if !launcher.closing && launcher.query.is_empty() && launcher.category == Some(Category::Windows) {
+                    if let Some(control) = &self.control {
+                        launcher
+                            .thumbnails
+                            .refresh(&launcher.rows, launcher.selected, control, now);
+                    }
+                }
+                if !launcher.closing
+                    && now.duration_since(launcher.refresh) >= Duration::from_secs(1)
+                    && matches!(launcher.file_status, files::Status::Indexing)
+                {
+                    launcher.refresh = now;
+                    return self.query_launcher();
+                }
+                Task::none()
+            }
+            _ => Task::none(),
+        }
+    }
+    pub(super) fn launcher_event(&mut self, event: &Event, id: window::Id) -> Option<Task<super::Message>> {
+        let launcher = self.launcher.as_mut().filter(|l| l.id == id)?;
+        if let Event::Window(window::Event::Opened { .. }) = event {
+            return Some(Task::batch([
+                cosmic::widget::text_input::focus(launcher.input.clone()),
+                window::run(id, native_wayland_surface)
+                    .map(move |surface| cosmic::Action::App(super::Message::NativeSurface(id, surface))),
+            ]));
+        }
+        if matches!(
+            event,
+            Event::PlatformSpecific(PlatformSpecific::Wayland(wayland::Event::Layer(
+                wayland::LayerEvent::Unfocused,
+                ..
+            )))
+        ) {
+            return Some(self.destroy_launcher());
+        }
+        if let Event::Window(window::Event::Closed) = event {
+            return Some(self.destroy_launcher());
+        }
+        if launcher.closing {
+            return Some(Task::none());
+        }
+        if matches!(event, Event::Mouse(cosmic::iced::mouse::Event::ButtonPressed(_))) {
+            launcher.ghost_visible = false;
+        }
+
+        let Event::Keyboard(cosmic::iced::keyboard::Event::KeyPressed { key, modifiers, .. }) = event else {
+            return None;
+        };
+        if launcher.query.is_empty() && launcher.category.is_none() {
+            match key {
+                Key::Named(Named::ArrowDown | Named::ArrowRight | Named::Tab) => {
+                    launcher.selected = if launcher.category_focused {
+                        (launcher.selected + 1) % 3
+                    } else {
+                        0
+                    };
+                    launcher.category_focused = true;
+                    return Some(cosmic::widget::text_input::focus(launcher.input.clone()));
+                }
+                Key::Named(Named::ArrowLeft | Named::ArrowUp) => {
+                    launcher.selected = (launcher.selected + 2) % 3;
+                    launcher.category_focused = true;
+                    return Some(cosmic::widget::text_input::focus(launcher.input.clone()));
+                }
+                _ => {}
+            }
+        }
+        if launcher.apps_browse() {
+            let next = match key {
+                Key::Named(Named::ArrowLeft) => Some(launcher.selected.saturating_sub(1)),
+                Key::Named(Named::ArrowRight) => Some(launcher.selected + 1),
+                Key::Named(Named::ArrowUp) => Some(launcher.selected.saturating_sub(4)),
+                Key::Named(Named::ArrowDown) => Some(launcher.selected + 4),
+                _ => None,
+            };
+            if let Some(next) = next {
+                launcher.selected = next.min(launcher.rows.len().saturating_sub(1));
+                let rows = launcher.rows.len().div_ceil(4);
+                launcher.apps_first_row = (launcher.selected / 4).saturating_sub(2);
+                return Some(cosmic::iced::widget::scrollable::snap_to(
+                    launcher.apps_scroll_id.clone(),
+                    cosmic::iced::widget::scrollable::RelativeOffset {
+                        x: None,
+                        y: Some(if rows > 3 {
+                            (launcher.selected / 4).saturating_sub(2) as f32 / (rows - 3) as f32
+                        } else {
+                            0.
+                        }),
+                    },
+                ));
+            }
+        }
+        Some(match key {
+            Key::Named(Named::Escape) => {
+                if launcher.escape() {
+                    self.close_launcher()
+                } else {
+                    let focus = cosmic::widget::text_input::focus(launcher.input.clone());
+                    Task::batch([focus, self.query_launcher()])
+                }
+            }
+            Key::Named(Named::ArrowDown) => {
+                if launcher.alternatives || launcher.query.is_empty() {
+                    launcher.selected = (launcher.selected + 1).min(launcher.rows.len().saturating_sub(1));
+                }
+                launcher.alternatives = true;
+                Task::none()
+            }
+            Key::Named(Named::ArrowUp) => {
+                launcher.selected = launcher.selected.saturating_sub(1);
+                Task::none()
+            }
+            Key::Named(Named::ArrowRight)
+                if launcher.query.is_empty() && launcher.category == Some(Category::Windows) =>
+            {
+                launcher.selected = (launcher.selected + 1).min(launcher.rows.len().saturating_sub(1));
+                Task::none()
+            }
+            Key::Named(Named::ArrowLeft)
+                if launcher.query.is_empty() && launcher.category == Some(Category::Windows) =>
+            {
+                launcher.selected = launcher.selected.saturating_sub(1);
+                Task::none()
+            }
+            Key::Named(Named::Tab) if !launcher.query.is_empty() => {
+                if let Some(row) = launcher.rows.get(launcher.selected) {
+                    let preferred = row.id.clone();
+                    launcher.query = row.title.clone();
+                    launcher.changed();
+                    launcher.preferred_result = Some(preferred);
+                }
+                let focus = cosmic::widget::text_input::focus(launcher.input.clone());
+                let cursor = cosmic::widget::text_input::move_cursor_to_end(launcher.input.clone());
+                Task::batch([focus, cursor, self.query_launcher()])
+            }
+            Key::Named(Named::ArrowLeft | Named::ArrowRight | Named::Home) => {
+                launcher.ghost_visible = false;
+                Task::none()
+            }
+            Key::Named(Named::End) => {
+                launcher.ghost_visible = true;
+                Task::none()
+            }
+            Key::Named(Named::Tab) => cosmic::widget::text_input::focus(launcher.input.clone()),
+            Key::Named(Named::Enter) => self.activate_launcher(modifiers.alt()),
+            _ => Task::none(),
+        })
+    }
+    fn activate_launcher(&mut self, alt: bool) -> Task<super::Message> {
+        let Some(launcher) = &mut self.launcher else {
+            return Task::none();
+        };
+        if launcher.closing || launcher.running || launcher.activating {
+            return Task::none();
+        }
+        if launcher.query.is_empty() && launcher.category.is_none() && launcher.category_focused {
+            let category = [Category::Apps, Category::Files, Category::Windows][launcher.selected.min(2)];
+            let id = launcher.id;
+            return self.update_launcher(Message::Browse(id, category));
+        }
+        let Some(row) = launcher.rows.get(launcher.selected) else {
+            return Task::none();
+        };
+        if row.requires_alt() && !alt {
+            launcher.error = Some("Use Alt+Enter to confirm".into());
+            return Task::none();
+        }
+        let target = row.target.clone();
+        let id = launcher.id;
+        let terminal = self.config.terminal.clone();
+        if matches!(target, Target::Action(sources::Action::Screenshot)) {
+            launcher.after_close = Some(target);
+            return self.close_launcher();
+        }
+        if let Target::Window(window) = target {
+            if let Some(control) = &self.control {
+                if alt {
+                    if let Some(workspace) = self
+                        .snapshot
+                        .outputs
+                        .iter()
+                        .find(|o| o.name == launcher.output)
+                        .map(|o| o.active_workspace)
+                    {
+                        control.move_window_to_workspace(window, workspace);
+                    }
+                } else {
+                    control.activate_window(window);
+                }
+            }
+            return self.close_launcher();
+        }
+        use sources::Action;
+        if let Target::Action(action) = target {
+            let power = match action {
+                Action::Poweroff => Some(system_modal::PowerAction::Poweroff),
+                Action::Reboot => Some(system_modal::PowerAction::Reboot),
+                Action::Suspend => Some(system_modal::PowerAction::Suspend),
+                _ => None,
+            };
+            if let Some(power) = power {
+                let close = self.destroy_launcher();
+                let open = self.open_system_modal(power, None);
+                return Task::batch([close, open]);
+            }
+        }
+        launcher.activating = true;
+        Task::perform(
+            async move {
+                tokio::task::spawn_blocking(move || launch::run(target, &terminal))
+                    .await
+                    .unwrap_or_else(|e| Err(e.to_string()))
+            },
+            move |result| cosmic::Action::App(super::Message::Launcher(Message::Launched(id, result))),
+        )
+    }
+}

shell/ferese-shell/src/launcher/sources.rs

@@ -0,0 +1,297 @@
+use crate::control::ShellSnapshot;
+use std::path::{Path, PathBuf};
+use std::sync::Arc;
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub(crate) enum Category {
+    Apps,
+    Files,
+    Windows,
+}
+impl Category {
+    pub(super) fn label(self) -> &'static str {
+        match self {
+            Self::Apps => "Apps",
+            Self::Files => "Files",
+            Self::Windows => "Windows",
+        }
+    }
+}
+#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord)]
+pub(crate) enum Action {
+    Light,
+    Dark,
+    Auto,
+    Screenshot,
+    Lock,
+    Suspend,
+    Poweroff,
+    Reboot,
+    Logout,
+}
+impl Action {
+    pub(super) fn destructive(self) -> bool {
+        matches!(self, Self::Poweroff | Self::Reboot | Self::Logout)
+    }
+}
+#[derive(Clone, Debug)]
+pub(crate) enum Target {
+    App { id: String, desktop: PathBuf },
+    File(Arc<Path>),
+    Window(u64),
+    Action(Action),
+}
+#[derive(Clone, Debug, PartialEq, Eq, PartialOrd, Ord)]
+pub(crate) enum ResultId {
+    App(Arc<str>),
+    File(Arc<Path>),
+    Window(u64),
+    Action(Action),
+}
+impl From<&str> for ResultId {
+    fn from(value: &str) -> Self {
+        Self::App(value.into())
+    }
+}
+#[derive(Clone, Debug)]
+pub(crate) struct Row {
+    pub id: ResultId,
+    pub title: String,
+    pub icon: Option<cosmic::widget::icon::Handle>,
+    pub subtitle: String,
+    pub target: Target,
+    pub score: f64,
+}
+impl Row {
+    pub(super) fn category(&self) -> Option<Category> {
+        match self.target {
+            Target::App { .. } => Some(Category::Apps),
+            Target::File(_) => Some(Category::Files),
+            Target::Window(_) => Some(Category::Windows),
+            Target::Action(_) => None,
+        }
+    }
+    pub(super) fn requires_alt(&self) -> bool {
+        matches!(self.target, Target::Action(action) if action.destructive())
+    }
+}
+pub(super) trait Source {
+    fn query(&self, query: &str) -> Vec<Row>;
+}
+
+// Normalize the query once, and reuse normalized catalog names across keystrokes.
+pub(super) struct Matcher(String);
+impl Matcher {
+    pub(super) fn new(query: &str) -> Self {
+        Self(query.trim().to_lowercase())
+    }
+    pub(super) fn score(&self, text: &str) -> Option<f64> {
+        if self.0.is_empty() {
+            return Some(0.);
+        }
+        self.normalized(&text.to_lowercase())
+    }
+    pub(super) fn normalized(&self, text: &str) -> Option<f64> {
+        let query = &self.0;
+        if query.is_empty() {
+            return Some(0.);
+        }
+        if text == query {
+            return Some(1000.);
+        }
+        if text.starts_with(query) {
+            return Some(800. - text.chars().count() as f64 * 0.1);
+        }
+        if let Some(offset) = text.find(query) {
+            return Some(600. - offset as f64);
+        }
+        let mut remaining = query.chars();
+        let mut next = remaining.next()?;
+        for ch in text.chars() {
+            if ch == next {
+                match remaining.next() {
+                    Some(ch) => next = ch,
+                    None => return Some(300. - text.chars().count() as f64 * 0.1),
+                }
+            }
+        }
+        None
+    }
+}
+#[cfg(test)]
+pub(super) fn match_score(query: &str, text: &str) -> Option<f64> {
+    Matcher::new(query).score(text)
+}
+pub(super) fn rank(rows: &mut Vec<Row>) {
+    // Group duplicate identities without allocating cloned IDs or a hash table.
+    rows.sort_unstable_by(|a, b| {
+        a.id.cmp(&b.id)
+            .then_with(|| b.score.total_cmp(&a.score))
+            .then_with(|| a.title.cmp(&b.title))
+    });
+    rows.dedup_by(|a, b| a.id == b.id);
+    rows.sort_unstable_by(|a, b| {
+        b.score
+            .total_cmp(&a.score)
+            .then_with(|| a.title.cmp(&b.title))
+            .then_with(|| a.id.cmp(&b.id))
+    });
+}
+#[derive(Default)]
+pub(super) struct Windows {
+    entries: std::collections::HashMap<u64, WindowEntry>,
+    workspaces: std::collections::HashMap<u64, String>,
+    workspace_ids: std::collections::HashSet<u64>,
+    query: String,
+    apps_ready: bool,
+}
+struct WindowEntry {
+    title: String,
+    app_id: String,
+    workspace: u64,
+    workspace_name: String,
+    result: Option<Row>,
+    icon: Option<cosmic::widget::icon::Handle>,
+    seen: bool,
+}
+impl Windows {
+    pub(super) fn sync(&mut self, snapshot: &ShellSnapshot, apps: Option<&super::apps::Apps>, query: &str) -> bool {
+        let query_changed = self.query != query || self.apps_ready != apps.is_some();
+        if self.query != query {
+            self.query.clear();
+            self.query.push_str(query);
+        }
+        self.apps_ready = apps.is_some();
+        let matcher = Matcher::new(query);
+        self.workspace_ids.clear();
+        for workspace in &snapshot.workspaces {
+            self.workspace_ids.insert(workspace.id);
+            self.workspaces
+                .entry(workspace.id)
+                .or_default()
+                .clone_from(&workspace.name);
+        }
+        self.workspaces.retain(|id, _| self.workspace_ids.contains(id));
+        for entry in self.entries.values_mut() {
+            entry.seen = false;
+        }
+        let mut changed = query_changed;
+        for window in &snapshot.windows {
+            let name = self.workspaces.get(&window.workspace).map_or("?", String::as_str);
+            if let Some(entry) = self.entries.get_mut(&window.id) {
+                entry.seen = true;
+                if !query_changed
+                    && entry.title == window.title
+                    && entry.app_id == window.app_id
+                    && entry.workspace == window.workspace
+                    && entry.workspace_name == name
+                {
+                    continue;
+                }
+            }
+            let title = if window.title.is_empty() {
+                &window.app_id
+            } else {
+                &window.title
+            };
+            let score = matcher
+                .score(title)
+                .into_iter()
+                .chain(matcher.score(&window.app_id))
+                .max_by(f64::total_cmp);
+            let icon = apps.and_then(|apps| apps.icon(&window.app_id));
+            let result = score.map(|score| Row {
+                id: ResultId::Window(window.id),
+                title: title.clone(),
+                icon: icon.clone(),
+                subtitle: format!("Window · Workspace {name}"),
+                target: Target::Window(window.id),
+                score,
+            });
+            self.entries.insert(
+                window.id,
+                WindowEntry {
+                    title: window.title.clone(),
+                    app_id: window.app_id.clone(),
+                    workspace: window.workspace,
+                    workspace_name: name.into(),
+                    result,
+                    icon,
+                    seen: true,
+                },
+            );
+            changed = true;
+        }
+        self.entries.retain(|_, entry| {
+            if !entry.seen {
+                changed = true;
+            }
+            entry.seen
+        });
+        changed
+    }
+    pub(super) fn rows(&self) -> impl Iterator<Item = &Row> {
+        self.entries.values().filter_map(|entry| entry.result.as_ref())
+    }
+}
+impl Source for Windows {
+    fn query(&self, query: &str) -> Vec<Row> {
+        if self.query == query {
+            return self.rows().cloned().collect();
+        }
+        let matcher = Matcher::new(query);
+        self.entries
+            .iter()
+            .filter_map(|(id, entry)| {
+                let title = if entry.title.is_empty() {
+                    &entry.app_id
+                } else {
+                    &entry.title
+                };
+                let score = matcher
+                    .score(title)
+                    .into_iter()
+                    .chain(matcher.score(&entry.app_id))
+                    .max_by(f64::total_cmp)?;
+                Some(Row {
+                    id: ResultId::Window(*id),
+                    title: title.clone(),
+                    icon: entry.icon.clone(),
+                    subtitle: format!("Window · Workspace {}", entry.workspace_name),
+                    target: Target::Window(*id),
+                    score,
+                })
+            })
+            .collect()
+    }
+}
+pub(super) struct Actions;
+impl Source for Actions {
+    fn query(&self, query: &str) -> Vec<Row> {
+        let matcher = Matcher::new(query);
+        [
+            ("Light theme", Action::Light),
+            ("Dark theme", Action::Dark),
+            ("Automatic theme", Action::Auto),
+            ("Take screenshot", Action::Screenshot),
+            ("Lock screen", Action::Lock),
+            ("Suspend", Action::Suspend),
+            ("Power off", Action::Poweroff),
+            ("Restart", Action::Reboot),
+            ("Log out", Action::Logout),
+        ]
+        .into_iter()
+        .filter_map(|(title, action)| {
+            let score = matcher.score(title)?;
+            Some(Row {
+                id: ResultId::Action(action),
+                icon: None,
+                title: title.into(),
+                subtitle: "Action".into(),
+                target: Target::Action(action),
+                score,
+            })
+        })
+        .collect()
+    }
+}

shell/ferese-shell/src/launcher/tests.rs

@@ -0,0 +1,180 @@
+use super::*;
+
+fn shell() -> FereseShell {
+    let mut shell = crate::tests::shell_with_measured_panel();
+    let _ = shell.toggle_launcher("test".into());
+    shell
+}
+fn row(title: &str) -> Row {
+    Row {
+        id: title.into(),
+        title: title.into(),
+        icon: None,
+        subtitle: "Action".into(),
+        target: Target::Action(sources::Action::Lock),
+        score: 1.,
+    }
+}
+#[test]
+fn escape_pops_one_layer_in_every_category() {
+    let mut shell = shell();
+    let launcher = shell.launcher.as_mut().unwrap();
+    for category in [
+        None,
+        Some(Category::Apps),
+        Some(Category::Files),
+        Some(Category::Windows),
+    ] {
+        launcher.category = category;
+        launcher.query = "term".into();
+        launcher.alternatives = true;
+        assert!(!launcher.escape());
+        assert!(launcher.query.is_empty());
+        assert!(!launcher.alternatives);
+        assert_eq!(launcher.category, category);
+        if category.is_some() {
+            assert!(!launcher.escape());
+            assert_eq!(launcher.category, None);
+        }
+        assert!(launcher.escape());
+    }
+}
+#[test]
+fn typing_never_opens_alternates_and_empty_home_has_pills() {
+    let mut shell = shell();
+    let _ = shell.update_launcher(Message::Input(shell.launcher.as_ref().unwrap().id, "fire".into()));
+    let launcher = shell.launcher.as_mut().unwrap();
+    assert!(!launcher.alternatives);
+    assert_eq!(launcher.target_height(), 72.);
+    launcher.rows = vec![row("Firefox"), row("Files")];
+    launcher.alternatives = true;
+    assert_eq!(launcher.target_height(), 208.);
+    assert!(!launcher.escape());
+    assert_eq!(launcher.target_height(), 72.);
+}
+#[test]
+fn late_results_cannot_replace_a_new_query_or_invocation() {
+    let mut shell = shell();
+    let id = shell.launcher.as_ref().unwrap().id;
+    let _ = shell.update_launcher(Message::Input(id, "new".into()));
+    let _ = shell.update_launcher(Message::Results(id, 0, vec![row("old")], files::Status::Ready));
+    assert!(shell.launcher.as_ref().unwrap().rows.is_empty());
+    let _ = shell.destroy_launcher();
+    let _ = shell.update_launcher(Message::Results(id, 1, vec![row("old")], files::Status::Ready));
+    assert!(shell.launcher.is_none());
+    let _ = shell.toggle_launcher("test".into());
+    let _ = shell.update_launcher(Message::Results(id, 0, vec![row("old")], files::Status::Ready));
+    assert!(shell.launcher.as_ref().unwrap().rows.is_empty());
+}
+#[test]
+fn selection_survives_result_reordering() {
+    let mut shell = shell();
+    let launcher = shell.launcher.as_mut().unwrap();
+    launcher.rows = vec![row("one"), row("two")];
+    launcher.selected = 1;
+    let (id, revision) = (launcher.id, launcher.revision);
+    let _ = shell.update_launcher(Message::Results(
+        id,
+        revision,
+        vec![row("two"), row("one")],
+        files::Status::Ready,
+    ));
+    assert_eq!(shell.launcher.as_ref().unwrap().selected, 0);
+}
+#[test]
+fn destructive_actions_require_alt() {
+    for action in [
+        sources::Action::Poweroff,
+        sources::Action::Reboot,
+        sources::Action::Logout,
+    ] {
+        let mut shell = shell();
+        let mut result = row("dangerous");
+        result.target = Target::Action(action);
+        shell.launcher.as_mut().unwrap().rows = vec![result];
+        let _ = shell.activate_launcher(false);
+        let launcher = shell.launcher.as_ref().unwrap();
+        assert!(!launcher.closing);
+        assert!(!launcher.activating);
+        assert_eq!(launcher.error.as_deref(), Some("Use Alt+Enter to confirm"));
+        assert!(shell.system_modal.is_none());
+    }
+}
+#[test]
+fn rank_is_deterministic_and_deduplicates_ids() {
+    let mut rows = vec![row("B"), row("A"), row("B")];
+    sources::rank(&mut rows);
+    assert_eq!(
+        rows.iter().map(|r| r.title.as_str()).collect::<Vec<_>>(),
+        vec!["A", "B"]
+    );
+    assert!(sources::match_score("é", "Éditeur").is_some());
+    assert!(sources::match_score("nope", "Terminal").is_none());
+}
+#[test]
+fn close_releases_catalog_and_restores_keyboard_navigation() {
+    let mut shell = shell();
+    let apps = Arc::new(apps::Apps::empty());
+    let weak = Arc::downgrade(&apps);
+    shell.launcher.as_mut().unwrap().apps = Some(apps);
+    shell.launcher.as_mut().unwrap().keyboard_nav = true;
+    let _ = shell.destroy_launcher();
+    assert!(weak.upgrade().is_none());
+    assert!(shell.core.keyboard_nav());
+    assert!(shell.launcher.is_none());
+}
+
+#[test]
+fn queries_are_coalesced_and_only_the_latest_result_is_applied() {
+    let mut shell = shell();
+    let launcher = shell.launcher.as_mut().unwrap();
+    launcher.apps = Some(Arc::new(apps::Apps::empty()));
+    launcher.running = true;
+    let id = launcher.id;
+    let _ = shell.update_launcher(Message::Input(id, "first".into()));
+    let _ = shell.update_launcher(Message::Input(id, "second".into()));
+    let revision = shell.launcher.as_ref().unwrap().revision;
+    let _ = shell.update_launcher(Message::Results(id, 0, vec![row("stale")], files::Status::Ready));
+    assert!(shell.launcher.as_ref().unwrap().running);
+    assert!(shell.launcher.as_ref().unwrap().rows.is_empty());
+    let _ = shell.update_launcher(Message::Results(
+        id,
+        revision,
+        vec![row("current")],
+        files::Status::Ready,
+    ));
+    assert!(!shell.launcher.as_ref().unwrap().running);
+    assert_eq!(shell.launcher.as_ref().unwrap().rows[0].title, "current");
+}
+
+#[test]
+fn queued_widget_messages_cannot_change_a_reopened_launcher() {
+    let mut shell = shell();
+    let old = shell.launcher.as_ref().unwrap().id;
+    let _ = shell.destroy_launcher();
+    let _ = shell.toggle_launcher("test".into());
+    let _ = shell.update_launcher(Message::Input(old, "stale paste".into()));
+    let _ = shell.update_launcher(Message::Browse(old, Category::Files));
+    let launcher = shell.launcher.as_ref().unwrap();
+    assert!(launcher.query.is_empty());
+    assert_eq!(launcher.category, None);
+}
+
+#[test]
+fn clicked_rows_keep_their_identity_after_a_result_refresh() {
+    let mut shell = shell();
+    let launcher = shell.launcher.as_mut().unwrap();
+    let id = launcher.id;
+    let mut power = row("power");
+    power.target = Target::Action(sources::Action::Poweroff);
+    let mut window = row("window");
+    window.target = Target::Window(99);
+    launcher.rows = vec![window, power];
+    let _ = shell.update_launcher(Message::ActivateRow(id, "power".into()));
+    let launcher = shell.launcher.as_ref().unwrap();
+    assert_eq!(launcher.selected, 1);
+    assert!(!launcher.closing);
+    assert_eq!(launcher.error.as_deref(), Some("Use Alt+Enter to confirm"));
+    let _ = shell.update_launcher(Message::ActivateRow(id, "vanished".into()));
+    assert_eq!(shell.launcher.as_ref().unwrap().selected, 1);
+}

shell/ferese-shell/src/launcher/thumbnails.rs

@@ -0,0 +1,83 @@
+use super::*;
+use std::collections::{HashMap, HashSet};
+use std::sync::atomic::{AtomicU32, Ordering};
+static NEXT_TOKEN: AtomicU32 = AtomicU32::new(1);
+pub(super) struct Thumbnails {
+    token: u32,
+    pub images: HashMap<u64, image::Handle>,
+    pending: HashSet<u64>,
+    updated: Option<Instant>,
+    visible: [Option<u64>; 3],
+}
+impl Default for Thumbnails {
+    fn default() -> Self {
+        Self {
+            token: NEXT_TOKEN.fetch_add(1, Ordering::Relaxed),
+            images: HashMap::new(),
+            pending: HashSet::new(),
+            updated: None,
+            visible: [None; 3],
+        }
+    }
+}
+impl Thumbnails {
+    pub fn refresh(&mut self, rows: &[Row], selected: usize, control: &ShellControl, now: Instant) {
+        if self
+            .updated
+            .is_some_and(|updated| now.duration_since(updated) < Duration::from_millis(500))
+        {
+            return;
+        }
+        self.visible = std::array::from_fn(|offset| {
+            rows.get(selected.saturating_sub(2) + offset)
+                .and_then(|row| match row.target {
+                    Target::Window(id) => Some(id),
+                    _ => None,
+                })
+        });
+        self.images.retain(|id, _| self.visible.contains(&Some(*id)));
+        for id in self.visible.into_iter().flatten() {
+            if self.pending.len() < 3 && self.pending.insert(id) {
+                control.thumbnail(self.token, id);
+            }
+        }
+        self.updated = Some(now);
+    }
+}
+impl FereseShell {
+    pub(crate) fn launcher_thumbnail(&mut self, token: u32, window: u64, image: Option<image::Handle>) {
+        let Some(launcher) = &mut self.launcher else {
+            return;
+        };
+        if launcher.closing || launcher.thumbnails.token != token || !launcher.thumbnails.pending.remove(&window) {
+            return;
+        }
+        if let Some(image) = image {
+            launcher.thumbnails.images.insert(window, image);
+        } else {
+            launcher.thumbnails.images.remove(&window);
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    #[test]
+    fn thumbnail_replies_must_belong_to_the_open_invocation() {
+        let mut shell = crate::tests::shell_with_measured_panel();
+        let _ = shell.toggle_launcher("test".into());
+        let launcher = shell.launcher.as_mut().unwrap();
+        let token = launcher.thumbnails.token;
+        launcher.thumbnails.pending.insert(1);
+        let image = image::Handle::from_rgba(1, 1, vec![255, 0, 0, 255]);
+        shell.launcher_thumbnail(token.wrapping_add(1), 1, Some(image.clone()));
+        assert!(shell.launcher.as_ref().unwrap().thumbnails.images.is_empty());
+        shell.launcher_thumbnail(token, 1, Some(image.clone()));
+        assert_eq!(shell.launcher.as_ref().unwrap().thumbnails.images.len(), 1);
+        let _ = shell.destroy_launcher();
+        let _ = shell.toggle_launcher("test".into());
+        shell.launcher_thumbnail(token, 1, Some(image));
+        assert!(shell.launcher.as_ref().unwrap().thumbnails.images.is_empty());
+    }
+}

shell/ferese-shell/src/launcher/view.rs

@@ -0,0 +1,531 @@
+use super::*;
+use cosmic::iced::border::Shape;
+use cosmic::iced::widget::{Space, rich_text, span, stack};
+use cosmic::widget::{column, text_input};
+
+type Ui<'a> = Element<'a, cosmic::Action<super::super::Message>>;
+fn message(message: Message) -> cosmic::Action<super::super::Message> {
+    cosmic::Action::App(super::super::Message::Launcher(message))
+}
+fn fill(color: Color, radius: f32) -> theme::Container<'static> {
+    theme::Container::custom(move |_| container::Style {
+        background: Some(color.into()),
+        border: Border {
+            radius: radius.into(),
+            shape: Shape::Continuous,
+            ..Default::default()
+        },
+        ..Default::default()
+    })
+}
+fn button_style(color: Color) -> theme::Button {
+    button_radius(color, 20.)
+}
+fn button_radius(color: Color, radius: f32) -> theme::Button {
+    let paint = move |hovered| button::Style {
+        background: Some(color.scale_alpha(if hovered { 0.18 } else { 0.09 }).into()),
+        border_radius: radius.into(),
+        border_width: 0.,
+        shape: Some(Shape::Continuous),
+        ..Default::default()
+    };
+    theme::Button::Custom {
+        active: Box::new(move |_, _| paint(false)),
+        hovered: Box::new(move |_, _| paint(true)),
+        pressed: Box::new(move |_, _| paint(true)),
+        disabled: Box::new(move |_| paint(false)),
+    }
+}
+impl FereseShell {
+    pub(super) fn view_launcher(&self, id: window::Id) -> Ui<'_> {
+        motion::frame_driven(
+            None,
+            move |_| self.launcher_content(id),
+            |_| false,
+            move |_| {
+                if let Some(launcher) = self.launcher.as_ref().filter(|launcher| launcher.id == id)
+                    && let Some(effects) = &launcher.effects
+                {
+                    let _ = effects.set_presentation(
+                        &launcher.regions.lock().unwrap(),
+                        launcher.progress.current as f32,
+                        [],
+                        ferese_surface_effects_v1::Role::Popover,
+                    );
+                }
+            },
+            |_| None,
+        )
+    }
+    fn launcher_content(&self, id: window::Id) -> Ui<'_> {
+        let Some(launcher) = self.launcher.as_ref().filter(|l| l.id == id) else {
+            return Space::new().into();
+        };
+        let palette = self.config.theme.palette();
+        let opacity = launcher.progress.current as f32;
+        let text = palette.text.scale_alpha(opacity);
+        let muted = palette.muted.scale_alpha(opacity);
+        let appearance = move |_: &cosmic::Theme| text_input::Appearance {
+            shape: Some(Shape::Continuous),
+            outline: None,
+            background: Color::TRANSPARENT.into(),
+            border_radius: 0.into(),
+            border_offset: None,
+            border_width: 0.,
+            border_color: Color::TRANSPARENT,
+            label_color: text,
+            placeholder_color: muted,
+            selected_text_color: text,
+            icon_color: Some(text),
+            text_color: Some(text),
+            selected_fill: palette.accent.scale_alpha(0.3 * opacity),
+        };
+        let accent = palette.accent.scale_alpha(opacity);
+        let medium = cosmic::font::Font {
+            weight: cosmic::iced::font::Weight::Medium,
+            ..self.render.font
+        };
+        let placeholder = launcher.category.map_or("Search", Category::label);
+        let input = text_input(placeholder, &launcher.query)
+            .id(launcher.input.clone())
+            .font(self.render.font)
+            .size(24)
+            .line_height(cosmic::iced::widget::text::LineHeight::Absolute(32.into()))
+            .padding(0)
+            .on_input(move |value| message(Message::Input(id, value)))
+            .style(theme::TextInput::Custom {
+                active: Box::new(appearance),
+                error: Box::new(appearance),
+                hovered: Box::new(appearance),
+                focused: Box::new(appearance),
+                disabled: Box::new(appearance),
+            });
+        let completion = launcher
+            .rows
+            .get(launcher.selected)
+            .filter(|_| !launcher.query.is_empty() && launcher.ghost_visible && launcher.query.chars().count() <= 28)
+            .map(|row| {
+                if row
+                    .title
+                    .get(..launcher.query.len())
+                    .is_some_and(|prefix| prefix.eq_ignore_ascii_case(&launcher.query))
+                {
+                    std::borrow::Cow::Borrowed(&row.title[launcher.query.len()..])
+                } else {
+                    std::borrow::Cow::Owned(format!("  {}", row.title))
+                }
+            });
+        let show_tab = completion.is_some();
+        let completion_text = rich_text([
+            span::<(), cosmic::font::Font>(&launcher.query).color(Color::TRANSPARENT),
+            span(completion.unwrap_or_default()).color(text.scale_alpha(0.3)),
+        ])
+        .size(24)
+        .line_height(cosmic::iced::widget::text::LineHeight::Absolute(32.into()))
+        .wrapping(cosmic::iced::widget::text::Wrapping::None)
+        .font(self.render.font);
+        let mut suggestion = row![completion_text]
+            .spacing(6)
+            .align_y(cosmic::iced::Alignment::Center);
+        if show_tab {
+            suggestion = suggestion.push(
+                container(
+                    self.render
+                        .text("Tab")
+                        .size(12)
+                        .line_height(cosmic::iced::widget::text::LineHeight::Absolute(14.into()))
+                        .class(theme::Text::Color(muted)),
+                )
+                .padding([2, 6])
+                .class(fill(text.scale_alpha(0.06), 5.)),
+            );
+        }
+        // The input determines the layout even when the completion is empty.
+        // Keep both layers present so result updates preserve focus and cursor state.
+        let editor: Ui<'_> = stack![input]
+            .push_under(suggestion)
+            .width(Length::Fill)
+            .clip(true)
+            .into();
+        let search_match = launcher
+            .rows
+            .get(launcher.selected)
+            .filter(|_| !launcher.query.is_empty());
+        let icon_category = search_match.map_or(launcher.category, Row::category);
+        let icon = match icon_category {
+            Some(Category::Windows) => ferese_theme::icons::WINDOW,
+            Some(Category::Apps) => ferese_theme::icons::APPS,
+            Some(Category::Files) => ferese_theme::icons::FOLDER,
+            None if search_match.is_some() => ferese_theme::icons::morph::CONTROLS,
+            None => ferese_theme::icons::SEARCH,
+        };
+        let icon_color = if search_match.is_some() || launcher.category.is_some() {
+            accent
+        } else {
+            muted
+        };
+        let mut input_row = row![bar_icon(icon, 24, icon_color), editor]
+            .spacing(16)
+            .align_y(cosmic::iced::Alignment::Center);
+        if let Some(handle) = search_match.and_then(|result| result.icon.clone()) {
+            input_row = input_row.push(cosmic::widget::icon::icon(handle).size(28).opacity(opacity));
+        }
+        if launcher.query.is_empty() && launcher.category.is_none() {
+            let dark = self.config.theme.appearance == ferese_config::theme::Appearance::Dark;
+            let mut pills = row![].spacing(6);
+            for (index, category) in [Category::Apps, Category::Files, Category::Windows]
+                .into_iter()
+                .enumerate()
+            {
+                let symbol = match category {
+                    Category::Apps => ferese_theme::icons::APPS,
+                    Category::Files => ferese_theme::icons::FOLDER,
+                    Category::Windows => ferese_theme::icons::WINDOW,
+                };
+                let selected = launcher.category_focused && launcher.selected == index;
+                let normal = if dark { 0.065 } else { 0.04 };
+                let strong = if dark { 0.10 } else { 0.07 };
+                let paint = move |alpha| button::Style {
+                    background: Some(text.scale_alpha(alpha).into()),
+                    border_radius: 16.into(),
+                    border_width: 0.,
+                    ..Default::default()
+                };
+                let label = self
+                    .render
+                    .text(category.label())
+                    .font(medium)
+                    .size(13)
+                    .line_height(cosmic::iced::widget::text::LineHeight::Absolute(18.into()))
+                    .class(theme::Text::Color(text));
+                pills = pills.push(
+                    button::custom(
+                        row![bar_icon(symbol, 16, accent), label]
+                            .spacing(7)
+                            .align_y(cosmic::iced::Alignment::Center),
+                    )
+                    .height(32)
+                    .padding(cosmic::iced::Padding {
+                        top: 7.,
+                        bottom: 7.,
+                        left: 10.,
+                        right: 13.,
+                    })
+                    .class(theme::Button::Custom {
+                        active: Box::new(move |_, _| paint(if selected { strong } else { normal })),
+                        hovered: Box::new(move |_, _| paint(strong)),
+                        pressed: Box::new(move |_, _| paint(strong - 0.02)),
+                        disabled: Box::new(move |_| paint(normal)),
+                    })
+                    .on_press(message(Message::Browse(id, category))),
+                );
+            }
+            input_row = input_row.push(pills);
+        }
+        let input_content = if let Some(error) = launcher.status_message() {
+            column![
+                input_row,
+                self.render.text(error).size(12).class(theme::Text::Color(muted))
+            ]
+            .spacing(2)
+        } else {
+            column![input_row]
+        };
+        let mut body = column![
+            container(input_content)
+                .height(72)
+                .padding(cosmic::iced::Padding {
+                    left: 24.,
+                    right: 20.,
+                    ..Default::default()
+                })
+                .align_y(cosmic::iced::Alignment::Center)
+        ];
+        if launcher.apps_browse() {
+            let total = launcher.rows.len().div_ceil(4);
+            let first = launcher.apps_first_row.min(total.saturating_sub(1)).saturating_sub(1);
+            let end = (first + 6).min(total);
+            let mut grid = cosmic::iced::widget::keyed_column(Vec::<(usize, Ui<'_>)>::new());
+            if first > 0 {
+                grid = grid.push(usize::MAX, Space::new().height(first as f32 * 108.));
+            }
+            for (row_index, apps) in launcher.rows.chunks(4).enumerate().skip(first).take(end - first) {
+                let mut tiles = row![].spacing(12);
+                for (column_index, app) in apps.iter().enumerate() {
+                    let glyph: Ui<'_> = match &app.icon {
+                        Some(handle) => cosmic::widget::icon::icon(handle.clone())
+                            .size(44)
+                            .opacity(opacity)
+                            .into(),
+                        None => bar_icon(ferese_theme::icons::APPS, 44, accent).into(),
+                    };
+                    let label = container(
+                        self.render
+                            .text(&app.title)
+                            .font(medium)
+                            .size(14)
+                            .class(theme::Text::Color(text)),
+                    )
+                    .center_x(Length::Fill)
+                    .height(20)
+                    .clip(true);
+                    tiles = tiles.push(
+                        button::custom(
+                            column![container(glyph).center_x(Length::Fill), label]
+                                .spacing(8)
+                                .align_x(cosmic::iced::Alignment::Center),
+                        )
+                        .width(Length::Fill)
+                        .height(100)
+                        .padding(12)
+                        .class(button_style(if launcher.selected == row_index * 4 + column_index {
+                            palette.accent.scale_alpha(opacity)
+                        } else {
+                            Color::TRANSPARENT
+                        }))
+                        .on_press(message(Message::ActivateRow(id, app.id.clone()))),
+                    );
+                }
+                for _ in apps.len()..4 {
+                    tiles = tiles.push(Space::new().width(Length::Fill));
+                }
+                grid = grid.push(
+                    row_index,
+                    container(tiles).height(if row_index + 1 == total { 100 } else { 108 }),
+                );
+            }
+            if end < total {
+                grid = grid.push(usize::MAX - 1, Space::new().height((total - end) as f32 * 108. - 8.));
+            }
+            if launcher.rows.is_empty() {
+                grid = grid.push(
+                    usize::MAX - 2,
+                    container(
+                        self.render
+                            .text(if launcher.running { "Loading apps…" } else { "No apps" })
+                            .size(14)
+                            .class(theme::Text::Color(muted)),
+                    )
+                    .height(100),
+                );
+            }
+            let height = launcher.rows.len().div_ceil(4).clamp(1, 3) as f32 * 108. - 8.;
+            body = body.push(
+                container(
+                    cosmic::iced::widget::scrollable(grid)
+                        .id(launcher.apps_scroll_id.clone())
+                        .on_scroll(move |viewport| {
+                            message(Message::AppsScrolled(
+                                id,
+                                (viewport.absolute_offset().y / 108.) as usize,
+                            ))
+                        })
+                        .height(height),
+                )
+                .padding([0, 16]),
+            );
+        } else if launcher.query.is_empty() && launcher.category == Some(Category::Windows) {
+            let mut cards = row![].spacing(12);
+            for (index, result) in launcher
+                .rows
+                .iter()
+                .enumerate()
+                .skip(launcher.selected.saturating_sub(2))
+                .take(3)
+            {
+                let Target::Window(id) = result.target else {
+                    continue;
+                };
+                let window = self.snapshot.windows.iter().find(|w| w.id == id);
+                let workspace = window.and_then(|w| self.snapshot.workspaces.iter().find(|ws| ws.id == w.workspace));
+                let thumbnail: Ui<'_> = match launcher.thumbnails.images.get(&id) {
+                    Some(handle) => image(handle.clone())
+                        .width(Length::Fill)
+                        .height(84)
+                        .content_fit(ContentFit::Contain)
+                        .opacity(opacity)
+                        .into(),
+                    None => container(bar_icon(ferese_theme::icons::WINDOW, 28, muted))
+                        .center_x(Length::Fill)
+                        .center_y(84)
+                        .into(),
+                };
+                let badge = container(
+                    self.render
+                        .text(workspace.map_or("?", |w| w.name.as_str()))
+                        .size(12)
+                        .class(theme::Text::Color(text)),
+                )
+                .padding([3, 6])
+                .class(fill(palette.sidebar.scale_alpha(opacity), 7.));
+                let preview = container(stack![thumbnail, container(badge).padding(6)])
+                    .clip(true)
+                    .class(fill(palette.card.scale_alpha(opacity), 15.));
+                let label = self
+                    .render
+                    .text(window.map_or(result.title.as_str(), |w| {
+                        launcher
+                            .apps
+                            .as_ref()
+                            .and_then(|apps| apps.name(&w.app_id))
+                            .unwrap_or(if w.app_id.is_empty() { &w.title } else { &w.app_id })
+                    }))
+                    .size(14)
+                    .class(theme::Text::Color(text));
+                let selected = index == launcher.selected;
+                let card = container(column![preview, label].spacing(8))
+                    .padding(6)
+                    .class(theme::Container::custom(move |_| container::Style {
+                        border: Border {
+                            radius: 20.into(),
+                            width: if selected { 2. } else { 0. },
+                            color: palette.accent.scale_alpha(opacity),
+                            shape: Shape::Continuous,
+                            ..Default::default()
+                        },
+                        ..Default::default()
+                    }));
+                cards = cards.push(
+                    button::custom(card)
+                        .width(Length::Fill)
+                        .padding(0)
+                        .class(button_style(Color::TRANSPARENT))
+                        .on_press(message(Message::ActivateRow(launcher.id, result.id.clone()))),
+                );
+            }
+            if launcher.rows.is_empty() {
+                cards = cards.push(
+                    self.render
+                        .text("No open windows")
+                        .size(14)
+                        .class(theme::Text::Color(muted)),
+                );
+            }
+            body = body.push(container(cards).padding([0, 16]));
+        } else if launcher.alternatives || (launcher.query.is_empty() && launcher.category.is_some()) {
+            let start = launcher.selected.saturating_sub(4);
+            let mut rows = column![].spacing(0);
+            for (index, result) in launcher.rows.iter().enumerate().skip(start).take(5) {
+                let symbol = match result.category() {
+                    Some(Category::Windows) => ferese_theme::icons::WINDOW,
+                    Some(Category::Files) => ferese_theme::icons::FOLDER,
+                    Some(Category::Apps) => ferese_theme::icons::APPS,
+                    None => ferese_theme::icons::morph::CONTROLS,
+                };
+                let tone = accent;
+                let result_icon: Ui<'_> = match &result.icon {
+                    Some(handle) => cosmic::widget::icon::icon(handle.clone())
+                        .size(24)
+                        .opacity(opacity)
+                        .into(),
+                    None => bar_icon(symbol, 20, tone).into(),
+                };
+                let glyph = container(result_icon)
+                    .center_x(36)
+                    .center_y(36)
+                    .class(fill(tone.scale_alpha(0.1), 12.));
+                let labels = column![
+                    self.render
+                        .text(&result.title)
+                        .font(medium)
+                        .size(15)
+                        .class(theme::Text::Color(text)),
+                    self.render
+                        .text(&result.subtitle)
+                        .size(12.5)
+                        .class(theme::Text::Color(muted))
+                ]
+                .spacing(3)
+                .width(Length::Fill);
+                let mut content = row![glyph, labels].spacing(12).align_y(cosmic::iced::Alignment::Center);
+                if index == launcher.selected {
+                    content = content.push(
+                        self.render
+                            .text(if result.requires_alt() { "Alt+Enter" } else { "Enter" })
+                            .size(12)
+                            .class(theme::Text::Color(muted)),
+                    );
+                }
+                rows = rows.push(
+                    button::custom(
+                        container(content)
+                            .height(60)
+                            .clip(true)
+                            .align_y(cosmic::iced::Alignment::Center),
+                    )
+                    .width(Length::Fill)
+                    .padding([0, 12])
+                    .class(button_radius(
+                        if index == launcher.selected {
+                            palette.accent.scale_alpha(opacity)
+                        } else {
+                            Color::TRANSPARENT
+                        },
+                        18.,
+                    ))
+                    .on_press(message(Message::ActivateRow(launcher.id, result.id.clone()))),
+                );
+            }
+            if launcher.rows.is_empty() {
+                rows = rows.push(
+                    container(
+                        self.render
+                            .text(launcher.status_message().unwrap_or(if launcher.running {
+                                "Searching…"
+                            } else {
+                                "No matches"
+                            }))
+                            .size(13)
+                            .class(theme::Text::Color(muted)),
+                    )
+                    .height(60)
+                    .padding(16),
+                );
+            }
+            body = body.push(container(rows).padding([0, 12]));
+        }
+        let available_height = self
+            .outputs
+            .iter()
+            .find(|o| o.name.as_deref() == Some(&launcher.output))
+            .and_then(|o| o.size)
+            .map(|(_, h)| h as f32);
+        let top = available_height.map_or(launcher.top, |h| {
+            (h * 0.3).min(h - launcher.height.current as f32 - 16.).max(16.)
+        });
+        let mut background = color_with_opacity(self.config.theme.surface_popover, opacity);
+        if self.config.theme.high_contrast || self.config.theme.reduce_transparency {
+            background.a = opacity;
+        }
+        let compositor_material = launcher.effects.is_some();
+        let panel = container(body)
+            .id("ferese-blur-card")
+            .width(if launcher.apps_browse() { 720 } else { 560 })
+            .height(launcher.height.current as f32)
+            .clip(true)
+            .class(theme::Container::custom(move |_| container::Style {
+                background: (!compositor_material).then_some(background.into()),
+                text_color: Some(text),
+                border: Border {
+                    color: muted.scale_alpha(0.16),
+                    width: 0.5,
+                    radius: 28.into(),
+                    shape: Shape::Continuous,
+                    ..Default::default()
+                },
+                ..Default::default()
+            }));
+        container(motion::scaled(
+            panel.into(),
+            0.97 + 0.03 * opacity,
+            launcher.regions.clone(),
+        ))
+        .width(Length::Fill)
+        .align_x(cosmic::iced::Alignment::Center)
+        .padding(cosmic::iced::Padding {
+            top,
+            ..Default::default()
+        })
+        .into()
+    }
+}

shell/ferese-shell/src/launcher/work.rs

@@ -0,0 +1,15 @@
+use std::sync::{
+    Arc,
+    atomic::{AtomicBool, Ordering},
+};
+
+#[derive(Clone, Default, Debug)]
+pub(super) struct Cancellation(Arc<AtomicBool>);
+impl Cancellation {
+    pub(super) fn cancel(&self) {
+        self.0.store(true, Ordering::Relaxed);
+    }
+    pub(super) fn cancelled(&self) -> bool {
+        self.0.load(Ordering::Relaxed)
+    }
+}

shell/ferese-shell/src/main.rs

@@ -12,6 +12,7 @@ mod control;
 mod display_mode;
 mod ipc_subscription;
 mod keybinding_guide;
+mod launcher;
 mod media;
 mod motion;
 mod notification_ui;
@@ -170,6 +171,8 @@ struct FereseShell {
     pending_config_error: Option<String>,
     menu: Option<status_ui::OpenMenu>,
     system_modal: Option<system_modal::SystemModal>,
+    launcher: Option<launcher::Launcher>,
+    launcher_files: launcher::files::Files,
     display_mode: display_mode::Model,
     guide_shown: bool,
     guide_load: keybinding_guide::LoadState,
@@ -194,6 +197,8 @@ struct OutputSurfaces {
 
 #[derive(Clone, Debug)]
 enum Message {
+    Launcher(launcher::Message),
+    LauncherEnter(window::Id, bool),
     NightLightTemperature(u16),
     CommitNightLightTemperature,
     HubOpen(window::Id, status_ui::Menu),
@@ -335,6 +340,8 @@ impl cosmic::Application for FereseShell {
             pending_config_error,
             menu: None,
             system_modal: None,
+            launcher: None,
+            launcher_files: Default::default(),
             display_mode: display_mode::Model::default(),
             guide_shown: false,
             guide_load: Default::default(),
@@ -365,6 +372,7 @@ impl cosmic::Application for FereseShell {
 
     fn subscription(&self) -> Subscription<Self::Message> {
         Subscription::batch([
+            self.launcher_subscription(),
             self.control.as_ref().map_or_else(Subscription::none, |control| {
                 control.subscription().map(|_| Message::ControlReady)
             }),
@@ -376,8 +384,11 @@ impl cosmic::Application for FereseShell {
             event::listen_with(|event, status, id| match &event {
                 Event::Keyboard(cosmic::iced::keyboard::Event::KeyPressed {
                     key: cosmic::iced::keyboard::Key::Named(cosmic::iced::keyboard::key::Named::Enter),
+                    modifiers,
                     ..
-                }) if status == cosmic::iced::event::Status::Captured => None,
+                }) if status == cosmic::iced::event::Status::Captured => {
+                    Some(Message::LauncherEnter(id, modifiers.alt()))
+                }
                 Event::PlatformSpecific(PlatformSpecific::Wayland(wayland::Event::Frame(..))) => EFFECT_FRAME_PENDING
                     .load(Ordering::Relaxed)
                     .then_some(Message::Event(event, id)),
@@ -407,6 +418,14 @@ impl cosmic::Application for FereseShell {
 
     fn update(&mut self, message: Self::Message) -> Task<Self::Message> {
         let task = match message {
+            Message::Launcher(message) => self.update_launcher(message),
+            Message::LauncherEnter(id, alt) => {
+                if self.launcher.as_ref().is_some_and(|l| l.id == id) {
+                    self.update_launcher(launcher::Message::Accept(alt))
+                } else {
+                    Task::none()
+                }
+            }
             Message::HubOpen(id, kind) => self.open_hub(id, kind),
             Message::HubClose(id) => self.close_hub(id),
             Message::HubWorkspaceScroll(id, delta) => self.scroll_hub_workspaces(id, delta),
@@ -562,6 +581,7 @@ impl cosmic::Application for FereseShell {
                     }
                     Ok((_connection, surface)) => {
                         self.attach_power_material(id, &surface);
+                        self.attach_launcher_effects(id, &surface);
                         if let Some(entry) = &mut self.notification_surface
                             && entry.id == id
                             && entry.effects.is_none()
@@ -857,6 +877,7 @@ impl cosmic::Application for FereseShell {
                     if let Some(snapshot) = poll.snapshot {
                         let mode_was_active = self.snapshot.binding_mode.is_some();
                         self.snapshot = snapshot;
+                        reload_task = Task::batch([reload_task, self.refresh_launcher()]);
                         let mode = self.binding_mode_transition(mode_was_active);
                         let feedback = self.sync_hub_workspace_feedback(overview_was_active || self.overview_active);
                         let mut tasks = vec![
@@ -919,6 +940,12 @@ impl cosmic::Application for FereseShell {
                     }
                     for command in poll.commands {
                         let task = match command {
+                            control::ControlCommand::DismissLauncher => self.destroy_launcher(),
+                            control::ControlCommand::Thumbnail(token, window, image) => {
+                                self.launcher_thumbnail(token, window, image);
+                                Task::none()
+                            }
+                            control::ControlCommand::ToggleLauncher(output) => self.toggle_launcher(output),
                             control::ControlCommand::ToggleDisplays(output) => self.open_display_modal(Some(&output)),
                             control::ControlCommand::MonitorsChanged => self.load_display_inventory(),
                             control::ControlCommand::ToggleGuide(output) => self.toggle_guide(output),
@@ -1177,6 +1204,8 @@ mod tests {
             pending_config_error: None,
             menu: None,
             system_modal: None,
+            launcher: None,
+            launcher_files: Default::default(),
             display_mode: Default::default(),
             guide_shown: false,
             guide_load: Default::default(),

shell/ferese-shell/src/motion.rs

@@ -348,18 +348,31 @@ pub fn animated_from_edge<'a, M: 'a>(
     Element::new(Motion {
         content,
         progress,
-        regions,
+        regions: Some(regions),
         radius,
+        scale: 1.,
         direction: if edge == ferese_panel::Edge::Top { -1. } else { 1. },
     })
 }
 
+pub fn scaled<'a, M: 'a>(content: Element<'a, M>, scale: f32, regions: Regions) -> Element<'a, M> {
+    Element::new(Motion {
+        content,
+        progress: 1.,
+        regions: Some(regions),
+        radius: 28.,
+        direction: 0.,
+        scale,
+    })
+}
+
 struct Motion<'a, M> {
     content: Element<'a, M>,
     progress: f32,
-    regions: Regions,
+    regions: Option<Regions>,
     radius: f32,
     direction: f32,
+    scale: f32,
 }
 
 impl<M> Motion<'_, M> {
@@ -367,9 +380,11 @@ impl<M> Motion<'_, M> {
         Vector::new(0.0, self.direction * 4.0 * (1.0 - self.progress))
     }
 
-    fn cursor(&self, cursor: mouse::Cursor) -> mouse::Cursor {
+    fn cursor(&self, layout: Layout<'_>, cursor: mouse::Cursor) -> mouse::Cursor {
         cursor.position().map_or(mouse::Cursor::Unavailable, |p| {
-            mouse::Cursor::Available(p - self.translation())
+            mouse::Cursor::Available(
+                layout.bounds().center() + (p - layout.bounds().center() - self.translation()) / self.scale,
+            )
         })
     }
 }
@@ -381,13 +396,16 @@ impl<M> Widget<M, Theme, cosmic::Renderer> for Motion<'_, M> {
         tree: &widget::Tree,
         cursor: mouse::Cursor,
     ) -> iced_accessibility::A11yTree {
-        let mut nodes = self.content.as_widget().a11y_nodes(layout, tree, self.cursor(cursor));
+        let mut nodes = self
+            .content
+            .as_widget()
+            .a11y_nodes(layout, tree, self.cursor(layout, cursor));
         let offset = self.translation();
         for node in nodes.root_mut() {
-            translate_accessible_node(node, offset);
+            transform_accessible_node(node, offset, layout.bounds().center(), self.scale);
         }
         for node in nodes.children_mut() {
-            translate_accessible_node(node, offset);
+            transform_accessible_node(node, offset, layout.bounds().center(), self.scale);
         }
         nodes
     }
@@ -432,19 +450,27 @@ impl<M> Widget<M, Theme, cosmic::Renderer> for Motion<'_, M> {
         shell: &mut Shell<'_, M>,
         viewport: &Rectangle,
     ) {
-        let mut collector = CollectRegions(Vec::new());
-        self.content
-            .as_widget_mut()
-            .operate(tree, layout, renderer, &mut collector);
-        if collector.0.is_empty() {
-            // A single-content popover (e.g. battery) has one inner card, not
-            // a full-surface rectangle including the outer transparent padding.
-            if let Some(content) = layout.children().next() {
-                collector.0.push(content.bounds());
+        if let Some(regions) = &self.regions {
+            let mut collected = regions.lock().unwrap();
+            collected.clear();
+            self.content
+                .as_widget_mut()
+                .operate(tree, layout, renderer, &mut ReuseRegions(&mut collected));
+            if collected.is_empty()
+                && let Some(content) = layout.children().next()
+            {
+                let bounds = content.bounds();
+                collected.push([bounds.x, bounds.y, bounds.width, bounds.height, 0.]);
             }
+            transform_regions(
+                &mut collected,
+                layout.bounds().center(),
+                self.scale,
+                self.translation(),
+                self.radius,
+            );
         }
-        *self.regions.lock().unwrap() = collector.into_regions(self.translation(), self.radius);
-        let cursor = self.cursor(cursor);
+        let cursor = self.cursor(layout, cursor);
         self.content
             .as_widget_mut()
             .update(tree, event, layout, cursor, renderer, clipboard, shell, viewport);
@@ -461,16 +487,25 @@ impl<M> Widget<M, Theme, cosmic::Renderer> for Motion<'_, M> {
         viewport: &Rectangle,
     ) {
         let v = self.translation();
-        let transform = Transformation::translate(v.x, v.y);
+        let center = layout.bounds().center();
+        let transform = Transformation::translate(center.x + v.x, center.y + v.y)
+            * Transformation::scale(self.scale)
+            * Transformation::translate(-center.x, -center.y);
         // Layout/region collection still run before the surface starts opening.
         // No child may paint an opaque control before the presentation begins.
         if self.progress <= 0.0 {
             return;
         }
         renderer.with_transformation(transform, |renderer| {
-            self.content
-                .as_widget()
-                .draw(tree, renderer, theme, style, layout, self.cursor(cursor), viewport)
+            self.content.as_widget().draw(
+                tree,
+                renderer,
+                theme,
+                style,
+                layout,
+                self.cursor(layout, cursor),
+                viewport,
+            )
         });
     }
 
@@ -484,7 +519,7 @@ impl<M> Widget<M, Theme, cosmic::Renderer> for Motion<'_, M> {
     ) -> mouse::Interaction {
         self.content
             .as_widget()
-            .mouse_interaction(tree, layout, self.cursor(cursor), viewport, renderer)
+            .mouse_interaction(tree, layout, self.cursor(layout, cursor), viewport, renderer)
     }
 
     fn operate(
@@ -512,56 +547,55 @@ impl<M> Widget<M, Theme, cosmic::Renderer> for Motion<'_, M> {
     }
 }
 
-fn translate_accessible_node(node: &mut iced_accessibility::A11yNode, offset: Vector) {
+fn transform_accessible_node(
+    node: &mut iced_accessibility::A11yNode,
+    offset: Vector,
+    center: cosmic::iced::Point,
+    scale: f32,
+) {
     if let Some(mut bounds) = node.node().bounds() {
-        bounds.x0 += f64::from(offset.x);
-        bounds.x1 += f64::from(offset.x);
-        bounds.y0 += f64::from(offset.y);
-        bounds.y1 += f64::from(offset.y);
+        let x = f64::from(center.x);
+        let y = f64::from(center.y);
+        bounds.x0 = x + (bounds.x0 - x) * f64::from(scale) + f64::from(offset.x);
+        bounds.x1 = x + (bounds.x1 - x) * f64::from(scale) + f64::from(offset.x);
+        bounds.y0 = y + (bounds.y0 - y) * f64::from(scale) + f64::from(offset.y);
+        bounds.y1 = y + (bounds.y1 - y) * f64::from(scale) + f64::from(offset.y);
         node.node_mut().set_bounds(bounds);
     }
 }
 
-struct CollectRegions(Vec<Rectangle>);
-
-impl CollectRegions {
-    fn into_regions(self, translation: Vector, radius: f32) -> Vec<[f32; 5]> {
-        self.0
-            .into_iter()
-            .take(32)
-            .filter(|r| r.width > 0.0 && r.height > 0.0)
-            .map(|r| {
-                [
-                    r.x + translation.x,
-                    r.y + translation.y,
-                    r.width,
-                    r.height,
-                    radius.max(0.0),
-                ]
-            })
-            .collect()
+fn transform_regions(regions: &mut [[f32; 5]], center: cosmic::iced::Point, scale: f32, offset: Vector, radius: f32) {
+    for region in regions {
+        region[0] = center.x + (region[0] - center.x) * scale + offset.x;
+        region[1] = center.y + (region[1] - center.y) * scale + offset.y;
+        region[2] *= scale;
+        region[3] *= scale;
+        region[4] = radius.max(0.) * scale;
     }
 }
 
-impl widget::Operation for CollectRegions {
+struct ReuseRegions<'a>(&'a mut Vec<[f32; 5]>);
+impl widget::Operation for ReuseRegions<'_> {
     fn traverse(&mut self, children: &mut dyn FnMut(&mut dyn widget::Operation)) {
         children(self);
     }
-
     fn container(&mut self, id: Option<&widget::Id>, bounds: Rectangle) {
-        if id == Some(&widget::Id::new("ferese-blur-card")) {
-            let contains = |outer: &Rectangle, inner: &Rectangle| {
-                outer.x <= inner.x
-                    && outer.y <= inner.y
-                    && outer.x + outer.width >= inner.x + inner.width
-                    && outer.y + outer.height >= inner.y + inner.height
-            };
-            // Nested controls belong to their enclosing card's single blur pass.
-            if self.0.iter().any(|outer| contains(outer, &bounds)) {
-                return;
-            }
-            self.0.retain(|inner| !contains(&bounds, inner));
-            self.0.push(bounds);
+        if id != Some(&widget::Id::new("ferese-blur-card")) || bounds.width <= 0. || bounds.height <= 0. {
+            return;
+        }
+        let r = [bounds.x, bounds.y, bounds.width, bounds.height, 0.];
+        let contains = |outer: &[f32; 5], inner: &[f32; 5]| {
+            outer[0] <= inner[0]
+                && outer[1] <= inner[1]
+                && outer[0] + outer[2] >= inner[0] + inner[2]
+                && outer[1] + outer[3] >= inner[1] + inner[3]
+        };
+        if self.0.iter().any(|outer| contains(outer, &r)) {
+            return;
+        }
+        self.0.retain(|inner| !contains(&r, inner));
+        if self.0.len() < 32 {
+            self.0.push(r);
         }
     }
 }
@@ -728,22 +762,31 @@ mod tests {
 
     #[test]
     fn material_regions_preserve_fractional_layout_and_translation() {
-        let collector = CollectRegions(vec![Rectangle::new((0.25, 2.5).into(), (100.25, 40.5).into())]);
-        assert_eq!(
-            collector.into_regions(Vector::new(0.125, -0.25), 13.5),
-            vec![[0.375, 2.25, 100.25, 40.5, 13.5]]
+        let mut regions = vec![[0.25, 2.5, 100.25, 40.5, 0.]];
+        transform_regions(
+            &mut regions,
+            cosmic::iced::Point::ORIGIN,
+            1.,
+            Vector::new(0.125, -0.25),
+            13.5,
         );
+        assert_eq!(regions, vec![[0.375, 2.25, 100.25, 40.5, 13.5]]);
     }
 
     #[test]
     fn centered_modal_material_tracks_surface_position_and_animation() {
-        let mut collector = CollectRegions(Vec::new());
+        let mut regions = Vec::new();
+        let mut collector = ReuseRegions(&mut regions);
         let card = Rectangle::new((380.0, 420.0).into(), (440.0, 220.0).into());
         widget::Operation::container(&mut collector, Some(&widget::Id::new("ferese-blur-card")), card);
-        assert_eq!(
-            collector.into_regions(Vector::new(0.0, -2.0), 14.0),
-            vec![[380., 418., 440., 220., 14.]]
+        transform_regions(
+            &mut regions,
+            cosmic::iced::Point::ORIGIN,
+            1.,
+            Vector::new(0.0, -2.0),
+            14.0,
         );
+        assert_eq!(regions, vec![[380., 418., 440., 220., 14.]]);
     }
 
     #[test]
@@ -901,7 +944,8 @@ mod tests {
 
     #[test]
     fn material_regions_include_cards_but_not_the_parent_or_gaps() {
-        let mut collector = CollectRegions(Vec::new());
+        let mut regions = Vec::new();
+        let mut collector = ReuseRegions(&mut regions);
         let id = widget::Id::new("ferese-blur-card");
         widget::Operation::container(
             &mut collector,
@@ -912,12 +956,18 @@ mod tests {
         let second = Rectangle::new((160.0, 12.0).into(), (140.0, 80.0).into());
         widget::Operation::container(&mut collector, Some(&id), first);
         widget::Operation::container(&mut collector, Some(&id), second);
-        assert_eq!(collector.0, vec![first, second]);
+        assert_eq!(
+            *collector.0,
+            vec![[12., 12., 140., 80., 0.], [160., 12., 140., 80., 0.]]
+        );
         widget::Operation::container(
             &mut collector,
             Some(&id),
             Rectangle::new((20.0, 20.0).into(), (40.0, 40.0).into()),
         );
-        assert_eq!(collector.0, vec![first, second]);
+        assert_eq!(
+            *collector.0,
+            vec![[12., 12., 140., 80., 0.], [160., 12., 140., 80., 0.]]
+        );
     }
 }

shell/ferese-shell/src/surfaces.rs

@@ -37,7 +37,17 @@ impl FereseShell {
                 } else {
                     Task::none()
                 };
+                let launcher = if self
+                    .launcher
+                    .as_ref()
+                    .is_some_and(|l| Some(&l.output) == entry.name.as_ref())
+                {
+                    self.destroy_launcher()
+                } else {
+                    Task::none()
+                };
                 let mut tasks = vec![
+                    launcher,
                     self.dismiss_workspace_tooltip(),
                     menu.chain(destroy_layer_surface(entry.bar)),
                     self.rebuild_system_modal(),
@@ -211,6 +221,7 @@ impl FereseShell {
         self.outputs
             .iter()
             .any(|entry| entry.bar == id || entry.wallpaper == Some(id))
+            || self.launcher.as_ref().is_some_and(|launcher| launcher.id == id)
             || self.menu.as_ref().is_some_and(|menu| menu.id == id)
             || self.system_modal.as_ref().is_some_and(|modal| modal.contains(id))
             || self
@@ -221,6 +232,9 @@ impl FereseShell {
     }
 
     pub(super) fn handle_event(&mut self, event: Event, id: window::Id) -> Task<Message> {
+        if let Some(task) = self.launcher_event(&event, id) {
+            return task;
+        }
         if matches!(event, Event::Mouse(cosmic::iced::mouse::Event::CursorEntered)) {
             return self.hub_hover(id, true);
         }
@@ -736,16 +750,29 @@ impl EffectsBinding {
             .map(|value| (value.clamp(0.0, 1.0) * 1000.0).round() as u32)
             .collect();
         validate_region_counts(regions.len(), values.len())?;
-        let next = (regions.to_vec(), opacity, values, role);
-        if self.presentation.borrow().as_ref() != Some(&next) {
-            self.surface.set_presentation(
-                role,
-                encode_regions(regions),
-                opacity,
-                next.2.iter().flat_map(|value| value.to_ne_bytes()).collect(),
-            );
-            self.connection.flush()?;
-            *self.presentation.borrow_mut() = Some(next);
+        let mut previous = self.presentation.borrow_mut();
+        if previous
+            .as_ref()
+            .is_some_and(|old| old.0 == regions && old.1 == opacity && old.2 == values && old.3 == role)
+        {
+            return Ok(());
+        }
+        self.surface.set_presentation(
+            role,
+            encode_regions(regions),
+            opacity,
+            values.iter().flat_map(|value| value.to_ne_bytes()).collect(),
+        );
+        self.connection.flush()?;
+        if let Some(old) = previous.as_mut() {
+            old.0.clear();
+            old.0.extend_from_slice(regions);
+            old.1 = opacity;
+            old.2.clear();
+            old.2.extend_from_slice(&values);
+            old.3 = role;
+        } else {
+            *previous = Some((regions.to_vec(), opacity, values, role));
         }
         Ok(())
     }

shell/ferese-shell/src/system_modal.rs

@@ -181,6 +181,7 @@ impl FereseShell {
             })
             .unwrap_or(0);
         let mut tasks = vec![
+            self.destroy_launcher(),
             self.destroy_system_modal(true),
             self.destroy_menu(),
             self.close_notification_history(),