wayland: implement xwayland_shell_v1

src/ifs/wl_surface/xwayland_shell_v1.rs

@@ -0,0 +1,120 @@
+use {
+    crate::{
+        client::{Client, ClientError},
+        globals::{Global, GlobalName},
+        ifs::wl_surface::{x_surface::xwayland_surface_v1::XwaylandSurfaceV1, WlSurfaceError},
+        leaks::Tracker,
+        object::Object,
+        utils::buffd::{MsgParser, MsgParserError},
+        wire::{xwayland_shell_v1::*, WlSurfaceId, XwaylandShellV1Id},
+    },
+    std::rc::Rc,
+    thiserror::Error,
+};
+
+pub struct XwaylandShellV1Global {
+    name: GlobalName,
+}
+
+pub struct XwaylandShellV1 {
+    id: XwaylandShellV1Id,
+    client: Rc<Client>,
+    pub version: u32,
+    pub tracker: Tracker<Self>,
+}
+
+impl XwaylandShellV1Global {
+    pub fn new(name: GlobalName) -> Self {
+        Self { name }
+    }
+
+    fn bind_(
+        self: Rc<Self>,
+        id: XwaylandShellV1Id,
+        client: &Rc<Client>,
+        version: u32,
+    ) -> Result<(), XwaylandShellV1Error> {
+        let obj = Rc::new(XwaylandShellV1 {
+            id,
+            client: client.clone(),
+            version,
+            tracker: Default::default(),
+        });
+        track!(client, obj);
+        client.add_client_obj(&obj)?;
+        Ok(())
+    }
+}
+impl XwaylandShellV1 {
+    fn destroy(&self, parser: MsgParser<'_, '_>) -> Result<(), XwaylandShellV1Error> {
+        let _req: Destroy = self.client.parse(self, parser)?;
+        self.client.remove_obj(self)?;
+        Ok(())
+    }
+
+    fn get_xwayland_surface(&self, parser: MsgParser<'_, '_>) -> Result<(), XwaylandShellV1Error> {
+        let req: GetXwaylandSurface = self.client.parse(self, parser)?;
+        let surface = self.client.lookup(req.surface)?;
+        let xsurface = surface.get_xsurface()?;
+        if xsurface.xwayland_surface.get().is_some() {
+            return Err(XwaylandShellV1Error::AlreadyAttached(surface.id));
+        }
+        let xws = Rc::new(XwaylandSurfaceV1 {
+            id: req.id,
+            client: self.client.clone(),
+            x: xsurface,
+            tracker: Default::default(),
+        });
+        track!(self.client, xws);
+        xws.x.xwayland_surface.set(Some(xws.clone()));
+        self.client.add_client_obj(&xws)?;
+        Ok(())
+    }
+}
+
+global_base!(XwaylandShellV1Global, XwaylandShellV1, XwaylandShellV1Error);
+
+impl Global for XwaylandShellV1Global {
+    fn singleton(&self) -> bool {
+        true
+    }
+
+    fn version(&self) -> u32 {
+        1
+    }
+
+    fn xwayland_only(&self) -> bool {
+        true
+    }
+}
+
+simple_add_global!(XwaylandShellV1Global);
+
+object_base! {
+    XwaylandShellV1;
+
+    DESTROY => destroy,
+    GET_XWAYLAND_SURFACE => get_xwayland_surface,
+}
+
+impl Object for XwaylandShellV1 {
+    fn num_requests(&self) -> u32 {
+        GET_XWAYLAND_SURFACE + 1
+    }
+}
+
+simple_add_obj!(XwaylandShellV1);
+
+#[derive(Debug, Error)]
+pub enum XwaylandShellV1Error {
+    #[error(transparent)]
+    ClientError(Box<ClientError>),
+    #[error("Parsing failed")]
+    MsgParserError(#[source] Box<MsgParserError>),
+    #[error("The `wl_surface` {0} already has an extension object")]
+    AlreadyAttached(WlSurfaceId),
+    #[error(transparent)]
+    WlSurfaceError(#[from] WlSurfaceError),
+}
+efrom!(XwaylandShellV1Error, ClientError);
+efrom!(XwaylandShellV1Error, MsgParserError);