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-rw-r--r--crates/ctl/src/main.rs330
1 files changed, 313 insertions, 17 deletions
diff --git a/crates/ctl/src/main.rs b/crates/ctl/src/main.rs
index a82fe4a..a22477c 100644
--- a/crates/ctl/src/main.rs
+++ b/crates/ctl/src/main.rs
@@ -6,14 +6,40 @@
//!
//! Usage:
//! srd clients list windows, one JSON object
+//! srd workspaces list workspaces, one JSON object
+//! srd keyboard layout active XKB layout name, one JSON object
//! srd subscribe like `clients`, then one JSON
//! object per line forever, each time
-//! the window list actually changes
-//! srd dispatch toggle_visibility ID hide/show a window
+//! the window list, workspace list, or
+//! keyboard layout actually changes
+//! (one "clients"/"workspaces"/
+//! "keyboard_layout"-tagged line per
+//! event)
+//!
+//! `dispatch` reads as a real verb phrase, not a joined identifier --
+//! `toggle floating`, not `toggle_floating`. Multi-word actions are
+//! genuinely separate arguments (ordinary shell word-splitting), matched
+//! here on the words that follow the leading verb rather than one fused
+//! snake_case token:
//! srd dispatch focus ID
//! srd dispatch close ID
-//! srd dispatch toggle_maximize ID
-//! srd dispatch toggle_fullscreen ID
+//! srd dispatch toggle visibility ID hide/show a window
+//! srd dispatch toggle maximize ID
+//! srd dispatch toggle fullscreen ID
+//! srd dispatch toggle floating ID
+//! srd dispatch toggle pinned ID
+//! srd dispatch move window ID left|right|up|down
+//! srd dispatch move workspace ID WORKSPACE
+//! srd dispatch activate workspace ID
+//! srd dispatch cycle keyboard layout no ID - there's only ever one keyboard
+//! srd set border_width 3 live theme values, applied immediately
+//! srd set border_color '#cba6f7' (hex string)
+//! srd set corner_radius 10
+//! srd set gap_inner 8
+//! srd set gap_outer 16
+//! srd set shadows true
+//! srd set rounded_corners true
+//! srd set decoration_mode server|client
//!
//! The socket is Unix-domain; on platforms without one this always fails
//! cleanly rather than not building at all, since it's one binary in a
@@ -31,9 +57,40 @@ fn main() {
}
};
- let result = if args.first().map(String::as_str) == Some("subscribe") { unix::stream(&request) } else { unix::send(&request).map(|r| println!("{r}")) };
- if let Err(e) = result {
- eprintln!("srd: {e}");
+ if args.first().map(String::as_str) == Some("subscribe") {
+ if let Err(e) = unix::stream(&request) {
+ eprintln!("srd: {e}");
+ std::process::exit(1);
+ }
+ return;
+ }
+
+ let response = match unix::send(&request) {
+ Ok(r) => r,
+ Err(e) => {
+ eprintln!("srd: {e}");
+ std::process::exit(1);
+ }
+ };
+ println!("{response}");
+ // A rejected `dispatch`/`set` (a bad key, a malformed value, a window
+ // id that doesn't exist) is still a *successful* request/response --
+ // `unix::send` returns `Ok` either way, since nothing went wrong at
+ // the transport level - so a caller checking only the exit code, not
+ // the JSON body, saw every rejection as a success. Reported live by an
+ // AGS peer session: it memoizes the last value sent per `srd set` key
+ // to avoid re-spawning a process on every option change, and a
+ // rejected write counted as a success would have pinned that setting
+ // permanently. `{"ok":false,...}` is the one response shape that ever
+ // contains a literal `"ok":` field at all - every query command
+ // (`clients`/`monitors`/`workspaces`/`keyboard_layout`) returns a
+ // differently-shaped body with no such field, so this can't misfire
+ // against one of those. A plain substring check, not real JSON
+ // parsing, on purpose: `crates/platform/src/ipc.rs`'s `err`/`ok`
+ // helpers always emit this exact literal (`serde_json` preserves
+ // struct field declaration order), and this binary is deliberately
+ // dumb/dependency-free - see this file's own module doc comment.
+ if response.contains(r#""ok":false"#) {
std::process::exit(1);
}
}
@@ -48,16 +105,150 @@ fn build_request(args: &[String]) -> Result<String, String> {
match args.first().map(String::as_str) {
Some("clients") => Ok(r#"{"cmd":"clients"}"#.to_string()),
Some("monitors") => Ok(r#"{"cmd":"monitors"}"#.to_string()),
+ Some("workspaces") => Ok(r#"{"cmd":"workspaces"}"#.to_string()),
+ Some("keyboard") if args.get(1).map(String::as_str) == Some("layout") => Ok(r#"{"cmd":"keyboard_layout"}"#.to_string()),
+ Some("keyboard") => Err("did you mean 'srd keyboard layout'?".to_string()),
Some("subscribe") => Ok(r#"{"cmd":"subscribe"}"#.to_string()),
- Some("dispatch") => {
- let action = args.get(1).ok_or("dispatch needs an action (toggle_visibility/focus/close/toggle_maximize/toggle_fullscreen)")?;
- if !matches!(action.as_str(), "toggle_visibility" | "focus" | "close" | "toggle_maximize" | "toggle_fullscreen") {
- return Err(format!("unknown dispatch action '{action}'"));
+ Some("dispatch") => build_dispatch(&args[1..]),
+ // `srd capture workspace <id> <path> [<width>x<height>]` - an
+ // off-screen render of that workspace's window tree, written to
+ // `path` as a PPM image. Not under `dispatch`: every `dispatch`
+ // action mutates window/workspace state, this only reads it. Sits
+ // next to `clients`/`monitors` in spirit, just backend-owned
+ // (needs a renderer) rather than answerable from core state alone
+ // - see `WindowManager::request_capture_workspace`'s own doc
+ // comment for why this exists (a workspace switcher's thumbnail
+ // for a workspace that isn't the one currently on screen, which no
+ // screencopy protocol can see).
+ Some("capture") => {
+ if args.get(1).map(String::as_str) != Some("workspace") {
+ return Err("'capture' only supports 'workspace' - usage: srd capture workspace <id> <path> [<width>x<height>]".to_string());
}
- let id: u64 = args.get(2).ok_or("dispatch needs a window id")?.parse().map_err(|_| "window id must be a number".to_string())?;
- Ok(format!(r#"{{"cmd":"{action}","id":{id}}}"#))
+ let id: u64 = args.get(2).ok_or("capture needs a workspace id")?.parse().map_err(|_| "id must be a number".to_string())?;
+ let path = args.get(3).ok_or("capture needs an output path")?;
+ let size = match args.get(4) {
+ None => String::new(),
+ Some(spec) => {
+ let (w, h) = spec.split_once('x').ok_or("size must look like <width>x<height>")?;
+ let w: u64 = w.parse().map_err(|_| "width must be a number".to_string())?;
+ let h: u64 = h.parse().map_err(|_| "height must be a number".to_string())?;
+ format!(r#","width":{w},"height":{h}"#)
+ }
+ };
+ Ok(format!(r#"{{"cmd":"capture_workspace","id":{id},"path":{path:?}{size}}}"#))
+ }
+ // Value encoding is picked per key rather than guessed from the
+ // string's shape (e.g. treating anything that parses as a number
+ // as one): `border_color` is a hex string that happens to start
+ // with punctuation, not a bare word, and JSON's `true`/`false`
+ // need to land unquoted for the server's `as_bool()` to see them
+ // as booleans at all, not a string it then has to reject.
+ Some("set") => {
+ let key = args
+ .get(1)
+ .ok_or("set needs a key (border_width/border_color/corner_radius/gap_inner/gap_outer/shadows/rounded_corners/decoration_mode)")?;
+ let raw = args.get(2).ok_or("set needs a value")?;
+ let value = match key.as_str() {
+ "border_width" | "corner_radius" | "gap_inner" | "gap_outer" => {
+ raw.parse::<u64>().map_err(|_| format!("{key} needs a numeric value"))?.to_string()
+ }
+ "shadows" | "rounded_corners" => match raw.as_str() {
+ "true" | "false" => raw.clone(),
+ _ => return Err(format!("{key} needs 'true' or 'false'")),
+ },
+ "decoration_mode" => match raw.as_str() {
+ "server" | "client" => format!("{:?}", raw),
+ _ => return Err(format!("{key} needs 'server' or 'client'")),
+ },
+ "border_color" => format!("{:?}", raw),
+ _ => return Err(format!("unknown set key '{key}'")),
+ };
+ Ok(format!(r#"{{"cmd":"set","key":"{key}","value":{value}}}"#))
}
- _ => Err("expected 'clients', 'monitors', 'subscribe', or 'dispatch <action> <id>'".to_string()),
+ _ => Err(
+ "expected 'clients', 'monitors', 'workspaces', 'keyboard layout', 'subscribe', 'dispatch <action> <id>', 'capture workspace <id> <path>', or 'set <key> <value>'"
+ .to_string(),
+ ),
+ }
+}
+
+/// `dispatch`'s own verb-phrase parser, split out of `build_request` for
+/// its own sake - reads like a real command (`toggle floating`, `move
+/// window`), not a single joined snake_case token (`toggle_floating`).
+/// Live report: a joined identifier reads as an internal detail leaking
+/// into the CLI surface, not a real command a person would type.
+///
+/// `set`'s keys (`corner_radius`, `border_color`, ...) deliberately keep
+/// their existing snake_case names, unlike `dispatch`'s actions - they're
+/// property/setting names, not verb phrases (the same distinction `git
+/// config user.name` or `systemctl set-property CPUQuota=` draw: a key
+/// stays an identifier, a command reads like English), and renaming them
+/// would break the AGS peer's already-working live Settings panel, which
+/// calls `srd set` directly today. `dispatch`'s actions carry no such
+/// cost yet - the peer's own integration for these is either brand new
+/// (the four just added) or already being migrated to `zwlr-foreign-
+/// toplevel` instead of `srd dispatch` entirely, so this is the moment to
+/// fix the syntax before more depends on it, not after.
+fn build_dispatch(args: &[String]) -> Result<String, String> {
+ let verb = args.first().ok_or("dispatch needs an action, e.g. 'focus', 'close', 'toggle maximize', 'move window'")?;
+ let usage_hint =
+ "expected one of: focus, close, lock, toggle visibility/maximize/fullscreen/floating/pinned, move window/workspace, activate workspace, cycle keyboard layout";
+ match verb.as_str() {
+ "focus" | "close" => {
+ let id: u64 = args.get(1).ok_or("dispatch needs an id")?.parse().map_err(|_| "id must be a number".to_string())?;
+ Ok(format!(r#"{{"cmd":"{verb}","id":{id}}}"#))
+ }
+ // No id - there's only ever one session to lock.
+ "lock" => Ok(r#"{"cmd":"lock"}"#.to_string()),
+ "toggle" => {
+ let noun = args.get(1).ok_or("'toggle' needs a target: visibility, maximize, fullscreen, floating, or pinned")?;
+ let cmd = match noun.as_str() {
+ "visibility" => "toggle_visibility",
+ "maximize" => "toggle_maximize",
+ "fullscreen" => "toggle_fullscreen",
+ "floating" => "toggle_floating",
+ "pinned" => "toggle_pinned",
+ _ => return Err(format!("unknown 'toggle' target '{noun}' - {usage_hint}")),
+ };
+ let id: u64 = args.get(2).ok_or("dispatch needs an id")?.parse().map_err(|_| "id must be a number".to_string())?;
+ Ok(format!(r#"{{"cmd":"{cmd}","id":{id}}}"#))
+ }
+ "move" => {
+ let noun = args.get(1).ok_or("'move' needs a target: window or workspace")?;
+ let id: u64 = args.get(2).ok_or("dispatch needs an id")?.parse().map_err(|_| "id must be a number".to_string())?;
+ match noun.as_str() {
+ "window" => {
+ let direction = args.get(3).ok_or("'move window' needs a direction (left/right/up/down)")?;
+ if !matches!(direction.as_str(), "left" | "right" | "up" | "down") {
+ return Err(format!("direction must be one of: left, right, up, down (got '{direction}')"));
+ }
+ Ok(format!(r#"{{"cmd":"move_window","id":{id},"direction":"{direction}"}}"#))
+ }
+ "workspace" => {
+ let workspace: u64 =
+ args.get(3).ok_or("'move workspace' needs a target workspace")?.parse().map_err(|_| "workspace must be a number".to_string())?;
+ Ok(format!(r#"{{"cmd":"move_to_workspace","id":{id},"workspace":{workspace}}}"#))
+ }
+ _ => Err(format!("unknown 'move' target '{noun}' - {usage_hint}")),
+ }
+ }
+ "activate" => {
+ if args.get(1).map(String::as_str) != Some("workspace") {
+ return Err(format!("'activate' only supports 'workspace' - {usage_hint}"));
+ }
+ let id: u64 = args.get(2).ok_or("dispatch needs an id")?.parse().map_err(|_| "id must be a number".to_string())?;
+ Ok(format!(r#"{{"cmd":"activate_workspace","id":{id}}}"#))
+ }
+ // No id - there's only ever one keyboard as far as this IPC is
+ // concerned, unlike every other action here which targets a
+ // specific window or workspace.
+ "cycle" => {
+ if args.get(1).map(String::as_str) != Some("keyboard") || args.get(2).map(String::as_str) != Some("layout") {
+ return Err(format!("'cycle' only supports 'keyboard layout' - {usage_hint}"));
+ }
+ Ok(r#"{"cmd":"cycle_keyboard_layout"}"#.to_string())
+ }
+ _ => Err(format!("unknown dispatch action '{verb}' - {usage_hint}")),
}
}
@@ -65,12 +256,117 @@ fn print_usage() {
eprintln!("usage:");
eprintln!(" srd clients");
eprintln!(" srd monitors");
+ eprintln!(" srd workspaces");
+ eprintln!(" srd keyboard layout");
eprintln!(" srd subscribe");
- eprintln!(" srd dispatch toggle_visibility <id>");
eprintln!(" srd dispatch focus <id>");
+ eprintln!(" srd dispatch lock");
eprintln!(" srd dispatch close <id>");
- eprintln!(" srd dispatch toggle_maximize <id>");
- eprintln!(" srd dispatch toggle_fullscreen <id>");
+ eprintln!(" srd dispatch toggle visibility <id>");
+ eprintln!(" srd dispatch toggle maximize <id>");
+ eprintln!(" srd dispatch toggle fullscreen <id>");
+ eprintln!(" srd dispatch toggle floating <id>");
+ eprintln!(" srd dispatch toggle pinned <id>");
+ eprintln!(" srd dispatch move window <id> <left|right|up|down>");
+ eprintln!(" srd dispatch move workspace <id> <workspace>");
+ eprintln!(" srd dispatch activate workspace <id>");
+ eprintln!(" srd dispatch cycle keyboard layout");
+ eprintln!(" srd capture workspace <id> <path> [<width>x<height>]");
+ eprintln!(" srd set border_width <n>");
+ eprintln!(" srd set border_color <#hex>");
+ eprintln!(" srd set corner_radius <n>");
+ eprintln!(" srd set gap_inner <n>");
+ eprintln!(" srd set gap_outer <n>");
+ eprintln!(" srd set shadows <true|false>");
+ eprintln!(" srd set rounded_corners <true|false>");
+ eprintln!(" srd set decoration_mode <server|client>");
+}
+
+#[cfg(test)]
+mod tests {
+ use super::build_request;
+
+ fn args(strs: &[&str]) -> Vec<String> {
+ strs.iter().map(|s| s.to_string()).collect()
+ }
+
+ #[test]
+ fn toggle_floating_and_toggle_pinned_read_as_two_words() {
+ assert_eq!(build_request(&args(&["dispatch", "toggle", "floating", "42"])).unwrap(), r#"{"cmd":"toggle_floating","id":42}"#);
+ assert_eq!(build_request(&args(&["dispatch", "toggle", "pinned", "42"])).unwrap(), r#"{"cmd":"toggle_pinned","id":42}"#);
+ }
+
+ #[test]
+ fn toggle_with_an_unknown_target_is_rejected_client_side() {
+ assert!(build_request(&args(&["dispatch", "toggle", "sideways", "42"])).is_err());
+ }
+
+ #[test]
+ fn capture_workspace_with_and_without_a_size() {
+ assert_eq!(
+ build_request(&args(&["capture", "workspace", "1", "/tmp/ws1.ppm"])).unwrap(),
+ r#"{"cmd":"capture_workspace","id":1,"path":"/tmp/ws1.ppm"}"#
+ );
+ assert_eq!(
+ build_request(&args(&["capture", "workspace", "1", "/tmp/ws1.ppm", "200x120"])).unwrap(),
+ r#"{"cmd":"capture_workspace","id":1,"path":"/tmp/ws1.ppm","width":200,"height":120}"#
+ );
+ assert!(build_request(&args(&["capture", "workspace", "1", "/tmp/ws1.ppm", "bogus"])).is_err());
+ assert!(build_request(&args(&["capture", "workspace", "1"])).is_err(), "missing path must error");
+ assert!(build_request(&args(&["capture", "monitor", "1", "/tmp/x.ppm"])).is_err(), "only 'workspace' is a valid capture target");
+ }
+
+ #[test]
+ fn move_window_needs_a_direction_and_validates_it() {
+ assert_eq!(build_request(&args(&["dispatch", "move", "window", "42", "left"])).unwrap(), r#"{"cmd":"move_window","id":42,"direction":"left"}"#);
+ assert!(build_request(&args(&["dispatch", "move", "window", "42"])).is_err(), "missing direction must error, not silently omit it");
+ assert!(build_request(&args(&["dispatch", "move", "window", "42", "sideways"])).is_err(), "an invalid direction must be rejected client-side");
+ }
+
+ #[test]
+ fn move_workspace_needs_a_numeric_workspace() {
+ assert_eq!(build_request(&args(&["dispatch", "move", "workspace", "42", "2"])).unwrap(), r#"{"cmd":"move_to_workspace","id":42,"workspace":2}"#);
+ assert!(build_request(&args(&["dispatch", "move", "workspace", "42"])).is_err(), "missing workspace must error");
+ assert!(build_request(&args(&["dispatch", "move", "workspace", "42", "not-a-number"])).is_err());
+ }
+
+ #[test]
+ fn lock_needs_no_id() {
+ assert_eq!(build_request(&args(&["dispatch", "lock"])).unwrap(), r#"{"cmd":"lock"}"#);
+ }
+
+ #[test]
+ fn focus_and_close_stay_single_word_verbs() {
+ assert_eq!(build_request(&args(&["dispatch", "focus", "42"])).unwrap(), r#"{"cmd":"focus","id":42}"#);
+ assert_eq!(build_request(&args(&["dispatch", "close", "42"])).unwrap(), r#"{"cmd":"close","id":42}"#);
+ }
+
+ #[test]
+ fn activate_workspace_and_cycle_keyboard_layout_read_as_real_phrases() {
+ assert_eq!(build_request(&args(&["dispatch", "activate", "workspace", "1"])).unwrap(), r#"{"cmd":"activate_workspace","id":1}"#);
+ assert_eq!(build_request(&args(&["dispatch", "cycle", "keyboard", "layout"])).unwrap(), r#"{"cmd":"cycle_keyboard_layout"}"#);
+ }
+
+ #[test]
+ fn a_joined_snake_case_action_is_no_longer_accepted() {
+ // The old single-token spelling must not silently keep working --
+ // a caller still using it should get a clear error, not a wrong
+ // command reaching the server.
+ assert!(build_request(&args(&["dispatch", "toggle_floating", "42"])).is_err());
+ }
+
+ #[test]
+ fn keyboard_layout_query_reads_as_two_words_too() {
+ assert_eq!(build_request(&args(&["keyboard", "layout"])).unwrap(), r#"{"cmd":"keyboard_layout"}"#);
+ assert!(build_request(&args(&["keyboard_layout"])).is_err());
+ }
+
+ #[test]
+ fn set_decoration_mode_accepts_only_server_or_client() {
+ assert_eq!(build_request(&args(&["set", "decoration_mode", "server"])).unwrap(), r#"{"cmd":"set","key":"decoration_mode","value":"server"}"#);
+ assert_eq!(build_request(&args(&["set", "decoration_mode", "client"])).unwrap(), r#"{"cmd":"set","key":"decoration_mode","value":"client"}"#);
+ assert!(build_request(&args(&["set", "decoration_mode", "both"])).is_err());
+ }
}
#[cfg(unix)]
generated by cgit v1.2.3 (git 2.39.1) at 2026-10-06 14:21:00 +0000