wayland: add a generic wayland client

src/wl_usr/usr_ifs/usr_jay_output.rs

@@ -0,0 +1,60 @@
+use {
+    crate::{
+        utils::{
+            buffd::{MsgParser, MsgParserError},
+            clonecell::CloneCell,
+        },
+        wire::{jay_output::*, JayOutputId},
+        wl_usr::{usr_object::UsrObject, UsrCon},
+    },
+    std::rc::Rc,
+};
+
+pub struct UsrJayOutput {
+    pub id: JayOutputId,
+    pub con: Rc<UsrCon>,
+    pub owner: CloneCell<Option<Rc<dyn UsrJayOutputOwner>>>,
+}
+
+pub trait UsrJayOutputOwner {
+    fn linear_id(self: Rc<Self>, ev: &LinearId) {
+        let _ = ev;
+    }
+
+    fn destroyed(&self) {}
+}
+
+impl UsrJayOutput {
+    fn linear_id(&self, parser: MsgParser<'_, '_>) -> Result<(), MsgParserError> {
+        let ev: LinearId = self.con.parse(self, parser)?;
+        if let Some(owner) = self.owner.get() {
+            owner.linear_id(&ev);
+        }
+        Ok(())
+    }
+
+    fn destroyed(&self, parser: MsgParser<'_, '_>) -> Result<(), MsgParserError> {
+        let _ev: Destroyed = self.con.parse(self, parser)?;
+        if let Some(owner) = self.owner.get() {
+            owner.destroyed();
+        }
+        Ok(())
+    }
+}
+
+usr_object_base! {
+    UsrJayOutput, JayOutput;
+
+    LINEAR_ID => linear_id,
+    DESTROYED => destroyed,
+}
+
+impl UsrObject for UsrJayOutput {
+    fn destroy(&self) {
+        self.con.request(Destroy { self_id: self.id });
+    }
+
+    fn break_loops(&self) {
+        self.owner.set(None);
+    }
+}