tree: add window-management mode

jay-config/src/_private/client.rs

@@ -955,6 +955,10 @@ impl Client {
         self.send(&ClientMessage::SetFocusFollowsMouseMode { seat, mode })
     }
 
+    pub fn set_window_management_enabled(&self, seat: Seat, enabled: bool) {
+        self.send(&ClientMessage::SetWindowManagementEnabled { seat, enabled })
+    }
+
     pub fn set_input_device_connector(&self, input_device: InputDevice, connector: Connector) {
         self.send(&ClientMessage::SetInputDeviceConnector {
             input_device,

jay-config/src/_private/ipc.rs

@@ -483,6 +483,10 @@ pub enum ClientMessage<'a> {
     RemoveInputMapping {
         input_device: InputDevice,
     },
+    SetWindowManagementEnabled {
+        seat: Seat,
+        enabled: bool,
+    },
 }
 
 #[derive(Serialize, Deserialize, Debug)]