config: add Seat::show_workspace_on

jay-config/src/_private/client.rs

@@ -122,6 +122,7 @@ pub(crate) struct ConfigClient {
     window_match_handlers: RefCell<HashMap<WindowMatcher, WindowMatchHandler>>,
 
     feat_mod_mask: Cell<bool>,
+    feat_show_workspace_on: Cell<bool>,
 }
 
 struct ClientMatchHandler {
@@ -266,6 +267,7 @@ pub unsafe extern "C" fn init(
         client_match_handlers: Default::default(),
         window_match_handlers: Default::default(),
         feat_mod_mask: Cell::new(false),
+        feat_show_workspace_on: Cell::new(false),
     });
     let init = unsafe { slice::from_raw_parts(init, size) };
     client.handle_init_msg(init);
@@ -591,6 +593,18 @@ impl ConfigClient {
         self.send(&ClientMessage::ShowWorkspace { seat, workspace });
     }
 
+    pub fn show_workspace_on(&self, seat: Seat, workspace: Workspace, connector: Connector) {
+        if self.feat_show_workspace_on.get() && connector.connected() {
+            self.send(&ClientMessage::ShowWorkspaceOn {
+                seat,
+                workspace,
+                connector,
+            });
+        } else {
+            self.show_workspace(seat, workspace);
+        }
+    }
+
     pub fn set_seat_workspace(&self, seat: Seat, workspace: Workspace) {
         self.send(&ClientMessage::SetSeatWorkspace { seat, workspace });
     }
@@ -2086,6 +2100,7 @@ impl ConfigClient {
                     match feat {
                         ServerFeature::NONE => {}
                         ServerFeature::MOD_MASK => self.feat_mod_mask.set(true),
+                        ServerFeature::SHOW_WORKSPACE_ON => self.feat_show_workspace_on.set(true),
                         _ => {}
                     }
                 }

jay-config/src/_private/ipc.rs

@@ -30,6 +30,7 @@ pub struct ServerFeature(u16);
 impl ServerFeature {
     pub const NONE: Self = Self(0);
     pub const MOD_MASK: Self = Self(1);
+    pub const SHOW_WORKSPACE_ON: Self = Self(2);
 }
 
 #[derive(Serialize, Deserialize, Debug)]
@@ -782,6 +783,11 @@ pub enum ClientMessage<'a> {
         matcher: ClientMatcher,
         caps: ClientCapabilities,
     },
+    ShowWorkspaceOn {
+        seat: Seat,
+        workspace: Workspace,
+        connector: Connector,
+    },
 }
 
 #[derive(Serialize, Deserialize, Debug)]

jay-config/src/input.rs

@@ -439,6 +439,15 @@ impl Seat {
         get!().show_workspace(self, workspace)
     }
 
+    /// Shows the workspace and sets the keyboard focus of the seat to that workspace.
+    ///
+    /// If the workspace doesn't currently exist and the connector is connected, the
+    /// workspace is created on the given connector. If the connector is not connected,
+    /// the workspace is created on the output that contains the seat's cursor.
+    pub fn show_workspace_on(self, workspace: Workspace, connector: Connector) {
+        get!().show_workspace_on(self, workspace, connector)
+    }
+
     /// Moves the currently focused window to the workspace.
     pub fn set_workspace(self, workspace: Workspace) {
         get!().set_seat_workspace(self, workspace)