Add missing delegates and framebuffer capture for functional compositor

- Add PrimarySelectionState and delegate: terminals like foot expect
  the primary selection protocol to be present
- Add XdgDecorationState and delegate: allows clients to negotiate
  server-side vs client-side window decorations
- Send initial configure for popups so menus and tooltips render
- Flatten nested if-let chains in commit handler (clippy)
- Include framebuffer capture in render pipeline (from prior task):
  copies rendered frame via ExportMem for future network transport

crates/wrsrvd/src/handlers/compositor.rs

@@ -54,12 +54,10 @@ impl CompositorHandler for WayRay {
             .elements()
             .find(|w| w.wl_surface().map(|s| s.into_owned()) == Some(surface.clone()))
             .cloned()
+            && let Some(toplevel) = window.toplevel()
+            && !toplevel.is_initial_configure_sent()
         {
-            if let Some(toplevel) = window.toplevel() {
-                if !toplevel.is_initial_configure_sent() {
-                    toplevel.send_configure();
-                }
-            }
+            toplevel.send_configure();
         }
     }
 }

crates/wrsrvd/src/handlers/input.rs

@@ -1,5 +1,5 @@
 use smithay::{
-    delegate_data_device, delegate_seat,
+    delegate_data_device, delegate_primary_selection, delegate_seat,
     input::{Seat, SeatHandler, SeatState, pointer::CursorImageStatus},
     reexports::wayland_server::protocol::wl_surface::WlSurface,
     wayland::selection::{
@@ -7,6 +7,7 @@ use smithay::{
         data_device::{
             ClientDndGrabHandler, DataDeviceHandler, DataDeviceState, ServerDndGrabHandler,
         },
+        primary_selection::{PrimarySelectionHandler, PrimarySelectionState},
     },
 };
 
@@ -39,5 +40,12 @@ impl DataDeviceHandler for WayRay {
     }
 }
 
+impl PrimarySelectionHandler for WayRay {
+    fn primary_selection_state(&self) -> &PrimarySelectionState {
+        &self.primary_selection_state
+    }
+}
+
 delegate_seat!(WayRay);
 delegate_data_device!(WayRay);
+delegate_primary_selection!(WayRay);

crates/wrsrvd/src/handlers/xdg_shell.rs

@@ -1,10 +1,15 @@
 use smithay::{
-    delegate_xdg_shell,
+    delegate_xdg_decoration, delegate_xdg_shell,
     desktop::Window,
-    reexports::wayland_server::protocol::wl_seat,
+    reexports::{
+        wayland_protocols::xdg::decoration::zv1::server::zxdg_toplevel_decoration_v1::Mode
+            as DecorationMode,
+        wayland_server::protocol::wl_seat,
+    },
     utils::Serial,
     wayland::shell::xdg::{
         PopupSurface, PositionerState, ToplevelSurface, XdgShellHandler, XdgShellState,
+        decoration::XdgDecorationHandler,
     },
 };
 use tracing::info;
@@ -22,8 +27,9 @@ impl XdgShellHandler for WayRay {
         info!("new toplevel mapped");
     }
 
-    fn new_popup(&mut self, _surface: PopupSurface, _positioner: PositionerState) {
-        // TODO: handle new popups
+    fn new_popup(&mut self, surface: PopupSurface, _positioner: PositionerState) {
+        // Send the initial configure so the popup can start drawing.
+        surface.send_configure().ok();
     }
 
     fn grab(&mut self, _surface: PopupSurface, _seat: wl_seat::WlSeat, _serial: Serial) {
@@ -40,4 +46,33 @@ impl XdgShellHandler for WayRay {
     }
 }
 
+impl XdgDecorationHandler for WayRay {
+    fn new_decoration(&mut self, toplevel: ToplevelSurface) {
+        // Prefer server-side decorations — we don't draw them yet,
+        // but telling the client lets it skip its own title bar.
+        toplevel.with_pending_state(|state| {
+            state.decoration_mode = Some(DecorationMode::ServerSide);
+        });
+    }
+
+    fn request_mode(&mut self, toplevel: ToplevelSurface, mode: DecorationMode) {
+        toplevel.with_pending_state(|state| {
+            state.decoration_mode = Some(mode);
+        });
+        if toplevel.is_initial_configure_sent() {
+            toplevel.send_pending_configure();
+        }
+    }
+
+    fn unset_mode(&mut self, toplevel: ToplevelSurface) {
+        toplevel.with_pending_state(|state| {
+            state.decoration_mode = Some(DecorationMode::ServerSide);
+        });
+        if toplevel.is_initial_configure_sent() {
+            toplevel.send_pending_configure();
+        }
+    }
+}
+
 delegate_xdg_shell!(WayRay);
+delegate_xdg_decoration!(WayRay);

crates/wrsrvd/src/render.rs

@@ -1,6 +1,8 @@
 use smithay::{
     backend::{
+        allocator::Fourcc,
         renderer::{
+            ExportMem,
             damage::OutputDamageTracker,
             element::texture::TextureRenderElement,
             gles::{GlesRenderer, GlesTexture},
@@ -8,10 +10,11 @@ use smithay::{
         winit::WinitGraphicsBackend,
     },
     desktop::{Window, space::render_output},
+    utils::{Buffer as BufferCoord, Rectangle, Size},
 };
 use tracing::warn;
 
-use crate::state::WayRay;
+use crate::state::{CapturedFrame, WayRay};
 
 /// Dark grey clear color for the compositor background.
 const CLEAR_COLOR: [f32; 4] = [0.1, 0.1, 0.1, 1.0];
@@ -33,7 +36,8 @@ pub fn render_output_frame(
     let age = backend.buffer_age().unwrap_or(0);
 
     // Render within a block so framebuffer is dropped before submit.
-    let render_damage = {
+    // Returns (damage, optional captured frame) on success.
+    let render_result = {
         let (renderer, mut framebuffer) = match backend.bind() {
             Ok(pair) => pair,
             Err(err) => {
@@ -59,9 +63,55 @@ pub fn render_output_frame(
 
         match render_result {
             Ok(result) => {
-                // Clone the damage rectangles so we can use them after
-                // the framebuffer is dropped.
-                Ok(result.damage.cloned())
+                // Clone damage before we consume the framebuffer for capture.
+                let damage = result.damage.cloned();
+
+                // Capture the framebuffer while it is still bound.
+                let output_size = state.output.current_mode().unwrap().size;
+                let region: Rectangle<i32, BufferCoord> = Rectangle::from_size(
+                    Size::from((output_size.w, output_size.h)),
+                );
+
+                let capture = match renderer.copy_framebuffer(
+                    &framebuffer,
+                    region,
+                    Fourcc::Argb8888,
+                ) {
+                    Ok(mapping) => match renderer.map_texture(&mapping) {
+                        Ok(pixels) => {
+                            let damage_rects = damage
+                                .as_ref()
+                                .map(|d| d.len())
+                                .unwrap_or(0);
+                            tracing::debug!(
+                                width = output_size.w,
+                                height = output_size.h,
+                                bytes = pixels.len(),
+                                damage_rects,
+                                "framebuffer captured"
+                            );
+                            Some(CapturedFrame {
+                                data: pixels.to_vec(),
+                                width: output_size.w,
+                                height: output_size.h,
+                                damage: damage
+                                    .as_ref()
+                                    .cloned()
+                                    .unwrap_or_default(),
+                            })
+                        }
+                        Err(err) => {
+                            tracing::warn!(?err, "failed to map framebuffer");
+                            None
+                        }
+                    },
+                    Err(err) => {
+                        tracing::warn!(?err, "failed to copy framebuffer");
+                        None
+                    }
+                };
+
+                Ok((damage, capture))
             }
             Err(err) => {
                 warn!(?err, "damage tracker render failed");
@@ -71,8 +121,12 @@ pub fn render_output_frame(
     };
     // framebuffer is now dropped, backend is no longer borrowed.
 
-    match render_damage {
-        Ok(damage) => {
+    match render_result {
+        Ok((damage, capture)) => {
+            // Store the captured frame for later consumption by the
+            // network transport layer.
+            state.last_capture = capture;
+
             let has_damage = damage.is_some();
 
             let submit_result = if let Some(ref rects) = damage {

crates/wrsrvd/src/state.rs

@@ -13,17 +13,28 @@ use smithay::{
     },
     output::Output,
     reexports::wayland_server::{Display, DisplayHandle},
-    utils::{Clock, Monotonic, SERIAL_COUNTER},
+    utils::{Clock, Monotonic, Physical, Rectangle, SERIAL_COUNTER},
     wayland::{
         compositor::CompositorState,
         output::OutputManagerState,
-        selection::data_device::DataDeviceState,
-        shell::xdg::XdgShellState,
+        selection::{
+            data_device::DataDeviceState,
+            primary_selection::PrimarySelectionState,
+        },
+        shell::xdg::{XdgShellState, decoration::XdgDecorationState},
         shm::ShmState,
     },
 };
 use tracing::info;
 
+/// Captured framebuffer data from the last render pass.
+pub struct CapturedFrame {
+    pub data: Vec<u8>,
+    pub width: i32,
+    pub height: i32,
+    pub damage: Vec<Rectangle<i32, Physical>>,
+}
+
 /// Central compositor state holding all Smithay subsystem states.
 ///
 /// This is the "god struct" pattern required by Smithay — a single type that
@@ -36,10 +47,13 @@ pub struct WayRay {
     pub seat_state: SeatState<Self>,
     pub output_manager_state: OutputManagerState,
     pub data_device_state: DataDeviceState,
+    pub primary_selection_state: PrimarySelectionState,
+    pub xdg_decoration_state: XdgDecorationState,
     pub space: Space<smithay::desktop::Window>,
     pub seat: Seat<Self>,
     pub clock: Clock<Monotonic>,
     pub output: Output,
+    pub last_capture: Option<CapturedFrame>,
 }
 
 impl WayRay {
@@ -51,6 +65,8 @@ impl WayRay {
         let xdg_shell_state = XdgShellState::new::<Self>(&dh);
         let shm_state = ShmState::new::<Self>(&dh, vec![]);
         let data_device_state = DataDeviceState::new::<Self>(&dh);
+        let primary_selection_state = PrimarySelectionState::new::<Self>(&dh);
+        let xdg_decoration_state = XdgDecorationState::new::<Self>(&dh);
 
         let mut seat_state = SeatState::new();
         let mut seat = seat_state.new_wl_seat(&dh, "wayray");
@@ -71,10 +87,13 @@ impl WayRay {
             seat_state,
             output_manager_state,
             data_device_state,
+            primary_selection_state,
+            xdg_decoration_state,
             space: Space::default(),
             seat,
             clock: Clock::new(),
             output,
+            last_capture: None,
         }
     }