wayland: implement xdg-activation

src/ifs/wl_surface.rs

@@ -1059,6 +1059,12 @@ impl WlSurface {
     pub fn set_content_type(&self, content_type: Option<ContentType>) {
         self.pending.content_type.set(Some(content_type));
     }
+
+    pub fn request_activation(&self) {
+        if let Some(tl) = self.toplevel.get() {
+            tl.tl_data().request_attention(tl.tl_as_node());
+        }
+    }
 }
 
 object_base! {

src/ifs/xdg_activation_token_v1.rs

@@ -0,0 +1,108 @@
+use {
+    crate::{
+        client::{Client, ClientError},
+        leaks::Tracker,
+        object::Object,
+        utils::{
+            activation_token::{activation_token, ActivationToken},
+            buffd::{MsgParser, MsgParserError},
+        },
+        wire::{xdg_activation_token_v1::*, XdgActivationTokenV1Id},
+    },
+    std::{cell::Cell, rc::Rc},
+    thiserror::Error,
+};
+
+const MAX_TOKENS_PER_CLIENT: usize = 8;
+
+pub struct XdgActivationTokenV1 {
+    pub id: XdgActivationTokenV1Id,
+    pub client: Rc<Client>,
+    pub tracker: Tracker<Self>,
+    already_used: Cell<bool>,
+}
+
+impl XdgActivationTokenV1 {
+    pub fn new(id: XdgActivationTokenV1Id, client: &Rc<Client>) -> Self {
+        Self {
+            id,
+            client: client.clone(),
+            tracker: Default::default(),
+            already_used: Cell::new(false),
+        }
+    }
+
+    fn set_serial(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationTokenV1Error> {
+        let _req: SetSerial = self.client.parse(self, parser)?;
+        Ok(())
+    }
+
+    fn set_app_id(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationTokenV1Error> {
+        let _req: SetAppId = self.client.parse(self, parser)?;
+        Ok(())
+    }
+
+    fn set_surface(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationTokenV1Error> {
+        let req: SetSurface = self.client.parse(self, parser)?;
+        self.client.lookup(req.surface)?;
+        Ok(())
+    }
+
+    fn commit(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationTokenV1Error> {
+        let _req: Commit = self.client.parse(self, parser)?;
+        if self.already_used.replace(true) {
+            return Err(XdgActivationTokenV1Error::AlreadyUsed);
+        }
+        let token = activation_token();
+        self.client.state.activation_tokens.set(token, ());
+        let mut tokens = self.client.activation_tokens.borrow_mut();
+        if tokens.len() >= MAX_TOKENS_PER_CLIENT {
+            if let Some(oldest) = tokens.pop_front() {
+                self.client.state.activation_tokens.remove(&oldest);
+            }
+        }
+        tokens.push_back(token);
+        self.send_done(token);
+        Ok(())
+    }
+
+    fn destroy(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationTokenV1Error> {
+        let _req: Destroy = self.client.parse(self, parser)?;
+        self.client.remove_obj(self)?;
+        Ok(())
+    }
+
+    fn send_done(&self, token: ActivationToken) {
+        let token = token.to_string();
+        self.client.event(Done {
+            self_id: self.id,
+            token: &token,
+        });
+    }
+}
+
+object_base! {
+    self = XdgActivationTokenV1;
+
+    SET_SERIAL => set_serial,
+    SET_APP_ID => set_app_id,
+    SET_SURFACE => set_surface,
+    COMMIT => commit,
+    DESTROY => destroy,
+}
+
+impl Object for XdgActivationTokenV1 {}
+
+simple_add_obj!(XdgActivationTokenV1);
+
+#[derive(Debug, Error)]
+pub enum XdgActivationTokenV1Error {
+    #[error(transparent)]
+    ClientError(Box<ClientError>),
+    #[error("Parsing failed")]
+    MsgParserError(#[source] Box<MsgParserError>),
+    #[error("The activation token has already been used")]
+    AlreadyUsed,
+}
+efrom!(XdgActivationTokenV1Error, ClientError);
+efrom!(XdgActivationTokenV1Error, MsgParserError);

src/ifs/xdg_activation_v1.rs

@@ -0,0 +1,120 @@
+use {
+    crate::{
+        client::{Client, ClientError},
+        globals::{Global, GlobalName},
+        ifs::xdg_activation_token_v1::XdgActivationTokenV1,
+        leaks::Tracker,
+        object::Object,
+        utils::{
+            activation_token::ActivationToken,
+            buffd::{MsgParser, MsgParserError},
+            opaque::OpaqueError,
+        },
+        wire::{xdg_activation_v1::*, XdgActivationV1Id},
+    },
+    std::rc::Rc,
+    thiserror::Error,
+};
+
+pub struct XdgActivationV1Global {
+    pub name: GlobalName,
+}
+
+impl XdgActivationV1Global {
+    pub fn new(name: GlobalName) -> Self {
+        Self { name }
+    }
+
+    fn bind_(
+        self: Rc<Self>,
+        id: XdgActivationV1Id,
+        client: &Rc<Client>,
+        version: u32,
+    ) -> Result<(), XdgActivationV1Error> {
+        let mgr = Rc::new(XdgActivationV1 {
+            id,
+            client: client.clone(),
+            tracker: Default::default(),
+            version,
+        });
+        track!(client, mgr);
+        client.add_client_obj(&mgr)?;
+        Ok(())
+    }
+}
+
+global_base!(XdgActivationV1Global, XdgActivationV1, XdgActivationV1Error);
+
+simple_add_global!(XdgActivationV1Global);
+
+impl Global for XdgActivationV1Global {
+    fn singleton(&self) -> bool {
+        true
+    }
+
+    fn version(&self) -> u32 {
+        1
+    }
+}
+
+pub struct XdgActivationV1 {
+    pub id: XdgActivationV1Id,
+    pub client: Rc<Client>,
+    pub tracker: Tracker<Self>,
+    pub version: u32,
+}
+
+impl XdgActivationV1 {
+    fn destroy(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationV1Error> {
+        let _req: Destroy = self.client.parse(self, parser)?;
+        self.client.remove_obj(self)?;
+        Ok(())
+    }
+
+    fn get_activation_token(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationV1Error> {
+        let req: GetActivationToken = self.client.parse(self, parser)?;
+        let token = Rc::new(XdgActivationTokenV1::new(req.id, &self.client));
+        track!(self.client, token);
+        self.client.add_client_obj(&token)?;
+        Ok(())
+    }
+
+    fn activate(&self, parser: MsgParser<'_, '_>) -> Result<(), XdgActivationV1Error> {
+        let req: Activate = self.client.parse(self, parser)?;
+        let token: ActivationToken = req.token.parse()?;
+        let surface = self.client.lookup(req.surface)?;
+        if self.client.state.activation_tokens.remove(&token).is_none() {
+            log::warn!(
+                "Client requested activation with unknown token {}",
+                req.token
+            );
+            return Ok(());
+        }
+        surface.request_activation();
+        Ok(())
+    }
+}
+
+object_base! {
+    self = XdgActivationV1;
+
+    DESTROY => destroy,
+    GET_ACTIVATION_TOKEN => get_activation_token,
+    ACTIVATE => activate,
+}
+
+impl Object for XdgActivationV1 {}
+
+simple_add_obj!(XdgActivationV1);
+
+#[derive(Debug, Error)]
+pub enum XdgActivationV1Error {
+    #[error(transparent)]
+    ClientError(Box<ClientError>),
+    #[error("Parsing failed")]
+    MsgParserError(#[source] Box<MsgParserError>),
+    #[error("Could not parse the activation token")]
+    ParseActivationToken(#[from] OpaqueError),
+}
+efrom!(XdgActivationV1Error, ClientError);
+efrom!(XdgActivationV1Error, MsgParserError);