[cfg-breaking] Move prefer-no-csd and spawn-at-startup to new clients scope

resources/default-config.kdl

@@ -136,11 +136,6 @@ layout {
     }
 }
 
-// Add lines like this to spawn processes at startup.
-// Note that running niri as a session supports xdg-desktop-autostart,
-// which may be more convenient to use.
-// spawn-at-startup "alacritty" "-e" "fish"
-
 cursor {
     // Change the theme and size of the cursor as well as set the
     // `XCURSOR_THEME` and `XCURSOR_SIZE` env variables.
@@ -148,10 +143,17 @@ cursor {
     // xcursor-size 24
 }
 
-// Uncomment this line to ask the clients to omit their client-side decorations if possible.
-// If the client will specifically ask for CSD, the request will be honored.
-// Additionally, clients will be informed that they are tiled, removing some rounded corners.
-// prefer-no-csd
+clients {
+    // Uncomment this line to ask the clients to omit their client-side decorations if possible.
+    // If the client will specifically ask for CSD, the request will be honored.
+    // Additionally, clients will be informed that they are tiled, removing some rounded corners.
+    // prefer-no-csd
+
+    // Add lines like this to spawn processes at startup.
+    // Note that running niri as a session supports xdg-desktop-autostart,
+    // which may be more convenient to use.
+    // spawn-at-startup "alacritty" "-e" "fish"
+}
 
 screenshot-ui {
     // You can change the path where screenshots are saved.

src/config.rs

@@ -14,12 +14,10 @@ pub struct Config {
     pub input: Input,
     #[knuffel(children(name = "output"))]
     pub outputs: Vec<Output>,
-    #[knuffel(children(name = "spawn-at-startup"))]
-    pub spawn_at_startup: Vec<SpawnAtStartup>,
     #[knuffel(child, default)]
     pub layout: Layout,
     #[knuffel(child, default)]
-    pub prefer_no_csd: bool,
+    pub clients: Clients,
     #[knuffel(child, default)]
     pub cursor: Cursor,
     #[knuffel(child, default)]
@@ -227,6 +225,14 @@ impl From<Color> for [f32; 4] {
     }
 }
 
+#[derive(knuffel::Decode, Debug, Default, PartialEq, Eq)]
+pub struct Clients {
+    #[knuffel(child, default)]
+    pub prefer_no_csd: bool,
+    #[knuffel(children(name = "spawn-at-startup"))]
+    pub spawn_at_startup: Vec<SpawnAtStartup>,
+}
+
 #[derive(knuffel::Decode, Debug, PartialEq)]
 pub struct Cursor {
     #[knuffel(child, unwrap(argument), default = String::from("default"))]
@@ -663,9 +669,11 @@ mod tests {
                 }
             }
 
-            spawn-at-startup "alacritty" "-e" "fish"
+            clients {
+                prefer-no-csd
 
-            prefer-no-csd
+                spawn-at-startup "alacritty" "-e" "fish"
+            }
 
             cursor {
                 xcursor-theme "breeze_cursors"
@@ -774,10 +782,12 @@ mod tests {
                         bottom: 0,
                     },
                 },
-                spawn_at_startup: vec![SpawnAtStartup {
-                    command: vec!["alacritty".to_owned(), "-e".to_owned(), "fish".to_owned()],
-                }],
-                prefer_no_csd: true,
+                clients: Clients {
+                    spawn_at_startup: vec![SpawnAtStartup {
+                        command: vec!["alacritty".to_owned(), "-e".to_owned(), "fish".to_owned()],
+                    }],
+                    prefer_no_csd: true,
+                },
                 cursor: Cursor {
                     xcursor_theme: String::from("breeze_cursors"),
                     xcursor_size: 16,

src/handlers/xdg_shell.rs

@@ -39,7 +39,7 @@ impl XdgShellHandler for State {
         // If the user prefers no CSD, it's a reasonable assumption that they would prefer to get
         // rid of the various client-side rounded corners also by using the tiled state.
         let config = self.niri.config.borrow();
-        if config.prefer_no_csd {
+        if config.clients.prefer_no_csd {
             window.toplevel().with_pending_state(|state| {
                 state.states.set(xdg_toplevel::State::TiledLeft);
                 state.states.set(xdg_toplevel::State::TiledRight);
@@ -192,7 +192,7 @@ delegate_xdg_shell!(State);
 
 impl XdgDecorationHandler for State {
     fn new_decoration(&mut self, toplevel: ToplevelSurface) {
-        let mode = if self.niri.config.borrow().prefer_no_csd {
+        let mode = if self.niri.config.borrow().clients.prefer_no_csd {
             Some(zxdg_toplevel_decoration_v1::Mode::ServerSide)
         } else {
             None
@@ -214,7 +214,7 @@ impl XdgDecorationHandler for State {
     }
 
     fn unset_mode(&mut self, toplevel: ToplevelSurface) {
-        let mode = if self.niri.config.borrow().prefer_no_csd {
+        let mode = if self.niri.config.borrow().clients.prefer_no_csd {
             Some(zxdg_toplevel_decoration_v1::Mode::ServerSide)
         } else {
             None

src/main.rs

@@ -138,7 +138,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         }
     };
     animation::ANIMATION_SLOWDOWN.store(config.debug.animation_slowdown, Ordering::Relaxed);
-    let spawn_at_startup = mem::take(&mut config.spawn_at_startup);
+    let spawn_at_startup = mem::take(&mut config.clients.spawn_at_startup);
 
     // Create the compositor.
     let mut event_loop = EventLoop::try_new().unwrap();

src/niri.rs

@@ -643,7 +643,7 @@ impl Niri {
         let xdg_decoration_state = XdgDecorationState::new::<State>(&display_handle);
         let kde_decoration_state = KdeDecorationState::new::<State>(
             &display_handle,
-            if config_.prefer_no_csd {
+            if config_.clients.prefer_no_csd {
                 KdeDecorationsMode::Server
             } else {
                 KdeDecorationsMode::Client