From f0600917ff20b3304b6cf18c7185869e1df5e2ad Mon Sep 17 00:00:00 2001
From: Julian Orth <ju.orth@gmail.com>
Date: Fri, 19 Apr 2024 11:37:48 +0200
Subject: [PATCH] wayland: add capabilities to jay_compositor

---
 src/ifs/jay_compositor.rs                | 14 ++++++++++++++
 src/it/test_ifs/test_jay_compositor.rs   | 12 ++++++++++++
 src/wl_usr/usr_ifs/usr_jay_compositor.rs | 13 +++++++++++++
 wire/jay_compositor.txt                  |  4 ++++
 4 files changed, 43 insertions(+)

diff --git a/src/ifs/jay_compositor.rs b/src/ifs/jay_compositor.rs
index eb714db3..d529ebfc 100644
--- a/src/ifs/jay_compositor.rs
+++ b/src/ifs/jay_compositor.rs
@@ -44,6 +44,7 @@ impl JayCompositorGlobal {
         });
         track!(client, obj);
         client.add_client_obj(&obj)?;
+        obj.send_capabilities();
         Ok(())
     }
 }
@@ -72,7 +73,20 @@ pub struct JayCompositor {
     tracker: Tracker<Self>,
 }
 
+pub struct Cap;
+
+impl Cap {
+    pub const NONE: u16 = 0;
+}
+
 impl JayCompositor {
+    fn send_capabilities(&self) {
+        self.client.event(Capabilities {
+            self_id: self.id,
+            cap: &[Cap::NONE],
+        });
+    }
+
     fn take_screenshot_impl(
         &self,
         id: JayScreenshotId,
diff --git a/src/it/test_ifs/test_jay_compositor.rs b/src/it/test_ifs/test_jay_compositor.rs
index bd0570db..53887664 100644
--- a/src/it/test_ifs/test_jay_compositor.rs
+++ b/src/it/test_ifs/test_jay_compositor.rs
@@ -74,12 +74,24 @@ impl TestJayCompositor {
         self.tran.client_id.set(ClientId::from_raw(ev.client_id));
         Ok(())
     }
+
+    fn handle_seat(&self, parser: MsgParser<'_, '_>) -> Result<(), TestError> {
+        let _ev = Seat::parse_full(parser)?;
+        Ok(())
+    }
+
+    fn handle_capabilities(&self, parser: MsgParser<'_, '_>) -> Result<(), TestError> {
+        let _ev = Capabilities::parse_full(parser)?;
+        Ok(())
+    }
 }
 
 test_object! {
     TestJayCompositor, JayCompositor;
 
     CLIENT_ID => handle_client_id,
+    SEAT => handle_seat,
+    CAPABILITIES => handle_capabilities,
 }
 
 impl TestObject for TestJayCompositor {}
diff --git a/src/wl_usr/usr_ifs/usr_jay_compositor.rs b/src/wl_usr/usr_ifs/usr_jay_compositor.rs
index b69ce0c9..2e1bdf35 100644
--- a/src/wl_usr/usr_ifs/usr_jay_compositor.rs
+++ b/src/wl_usr/usr_ifs/usr_jay_compositor.rs
@@ -1,5 +1,6 @@
 use {
     crate::{
+        ifs::jay_compositor::Cap,
         utils::{
             buffd::{MsgParser, MsgParserError},
             clonecell::CloneCell,
@@ -126,6 +127,17 @@ impl UsrJayCompositor {
         }
         Ok(())
     }
+
+    fn capabilities(&self, parser: MsgParser<'_, '_>) -> Result<(), MsgParserError> {
+        let ev: Capabilities = self.con.parse(self, parser)?;
+        for &cap in ev.cap {
+            match cap {
+                Cap::NONE => {}
+                _ => {}
+            }
+        }
+        Ok(())
+    }
 }
 
 usr_object_base! {
@@ -133,6 +145,7 @@ usr_object_base! {
 
     CLIENT_ID => client_id,
     SEAT => seat,
+    CAPABILITIES => capabilities,
 }
 
 impl UsrObject for UsrJayCompositor {
diff --git a/wire/jay_compositor.txt b/wire/jay_compositor.txt
index c38e3d8c..bcafcef1 100644
--- a/wire/jay_compositor.txt
+++ b/wire/jay_compositor.txt
@@ -88,3 +88,7 @@ event seat {
     id: u32,
     name: str,
 }
+
+event capabilities {
+    cap: array(pod(u16)),
+}