wayland: add jay_workspace_watcher

src/ifs/jay_workspace_watcher.rs

@@ -0,0 +1,91 @@
+use {
+    crate::{
+        client::{Client, ClientError},
+        ifs::jay_workspace::JayWorkspace,
+        leaks::Tracker,
+        object::Object,
+        tree::WorkspaceNode,
+        utils::{
+            buffd::{MsgParser, MsgParserError},
+            clonecell::CloneCell,
+        },
+        wire::{jay_workspace_watcher::*, JayWorkspaceWatcherId},
+    },
+    std::rc::Rc,
+    thiserror::Error,
+};
+
+pub struct JayWorkspaceWatcher {
+    pub id: JayWorkspaceWatcherId,
+    pub client: Rc<Client>,
+    pub tracker: Tracker<Self>,
+}
+
+impl JayWorkspaceWatcher {
+    pub fn send_workspace(&self, workspace: &Rc<WorkspaceNode>) -> Result<(), ClientError> {
+        let jw = Rc::new(JayWorkspace {
+            id: self.client.new_id()?,
+            client: self.client.clone(),
+            workspace: CloneCell::new(Some(workspace.clone())),
+            tracker: Default::default(),
+        });
+        track!(self.client, jw);
+        self.client.add_server_obj(&jw);
+        workspace
+            .jay_workspaces
+            .set((self.client.id, jw.id), jw.clone());
+        self.client.event(New {
+            self_id: self.id,
+            id: jw.id,
+            linear_id: workspace.id.raw(),
+        });
+        jw.send_linear_id(workspace);
+        jw.send_name(workspace);
+        jw.send_output(&workspace.output.get());
+        jw.send_visible(workspace.visible.get());
+        jw.send_done();
+        Ok(())
+    }
+
+    fn destroy(&self, parser: MsgParser<'_, '_>) -> Result<(), JayWorkspaceWatcherError> {
+        let _req: Destroy = self.client.parse(self, parser)?;
+        self.remove_from_state();
+        self.client.remove_obj(self)?;
+        Ok(())
+    }
+
+    fn remove_from_state(&self) {
+        self.client
+            .state
+            .workspace_watchers
+            .remove(&(self.client.id, self.id));
+    }
+}
+
+object_base! {
+    JayWorkspaceWatcher;
+
+    DESTROY => destroy,
+}
+
+impl Object for JayWorkspaceWatcher {
+    fn num_requests(&self) -> u32 {
+        DESTROY + 1
+    }
+
+    fn break_loops(&self) {
+        self.remove_from_state();
+    }
+}
+
+simple_add_obj!(JayWorkspaceWatcher);
+
+#[derive(Debug, Error)]
+pub enum JayWorkspaceWatcherError {
+    #[error("Parsing failed")]
+    MsgParserError(Box<MsgParserError>),
+    #[error(transparent)]
+    ClientError(Box<ClientError>),
+}
+efrom!(JayWorkspaceWatcherError, MsgParserError);
+efrom!(JayWorkspaceWatcherError, ClientError);