Set layer surface size and keyboard interactivity

src/layer_shell.rs

@@ -9,9 +9,10 @@ impl WlClient {
         let object: u32 = self.layer_shell_id.unwrap();
         const OPCODE: u16 = 0;
         let msg_size: u16 = 28 + (NAMESPACE.len()+1).next_multiple_of(4) as u16;
+        let output: u32 = 0;
+
         let mut request = vec![0u8; msg_size as usize];
         let mut offset: usize = 0;
-        let output: u32 = 0;
 
         request.write_u32(&object,   &mut offset);
         request.write_u16(&OPCODE,   &mut offset);
@@ -19,6 +20,7 @@ impl WlClient {
 
         self.current_id += 1;
         request.write_u32(&self.current_id, &mut offset);
+        self.layer_surface_id = Some(self.current_id);
         request.write_u32(&self.surface_id.unwrap(), &mut offset);
         request.write_u32(&output, &mut offset);
         request.write_u32(&OVERLAY, &mut offset);
@@ -28,4 +30,44 @@ impl WlClient {
 
         Ok(())
     }
+
+    pub fn layer_surface_set_size(&mut self, width: u32, height: u32) -> Result<(), Box<dyn Error>> {
+        let object: u32 = self.layer_surface_id.unwrap();
+        const OPCODE: u16 = 0;
+        const MSG_SIZE: u16 = 16;
+
+        let mut request = vec![0u8; MSG_SIZE as usize];
+        let mut offset: usize = 0;
+
+        request.write_u32(&object,   &mut offset);
+        request.write_u16(&OPCODE,   &mut offset);
+        request.write_u16(&MSG_SIZE, &mut offset);
+
+        request.write_u32(&width, &mut offset);
+        request.write_u32(&height, &mut offset);
+
+        self.socket.write(&request)?;
+
+        Ok(())
+    }
+
+    pub fn layer_surface_set_keyboard_interactivity(&mut self) -> Result<(), Box<dyn Error>> {
+        let object: u32 = self.layer_surface_id.unwrap();
+        const OPCODE: u16 = 4;
+        const MSG_SIZE: u16 = 12;
+        const EXCLUSIVE: u32 = 1; // exclusize keyboard focus
+
+        let mut request = vec![0u8; MSG_SIZE as usize];
+        let mut offset: usize = 0;
+
+        request.write_u32(&object,   &mut offset);
+        request.write_u16(&OPCODE,   &mut offset);
+        request.write_u16(&MSG_SIZE, &mut offset);
+
+        request.write_u32(&EXCLUSIVE, &mut offset);
+
+        self.socket.write(&request)?;
+
+        Ok(())
+    }
 }

src/wl_client.rs

@@ -19,6 +19,7 @@ pub struct WlClient {
     pub surface_id:         Option<u32>,
     pub xdg_wm_base_id:     Option<u32>,
     pub layer_shell_id:     Option<u32>,
+    pub layer_surface_id:   Option<u32>,
 }
 
 impl WlClient {
@@ -40,6 +41,7 @@ impl WlClient {
             surface_id:         None,
             xdg_wm_base_id:     None,
             layer_shell_id:     None,
+            layer_surface_id:   None,
         };
 
         Ok(res)

src/wl_registry.rs

@@ -18,9 +18,11 @@ impl WlClient {
         println!("Initializing toplevel!");
         self.wl_compositor_create_surface()?;
         self.layer_shell_get_layer_surface()?;
+        self.layer_surface_set_size(200, 200)?;
         self.wl_shm_create_pool()?;
         self.wl_shm_pool_create_buffer(0, 200, 200)?;
         self.wl_surface_attach()?;
+        self.layer_surface_set_keyboard_interactivity()?;
 
         Ok(())
     }