wayland: implement xdg-dialog-v1

src/ifs/wl_surface/xdg_surface/xdg_toplevel.rs

@@ -1,3 +1,5 @@
+pub mod xdg_dialog_v1;
+
 use {
     crate::{
         bugs,
@@ -9,7 +11,10 @@ use {
             ext_foreign_toplevel_list_v1::ExtForeignToplevelListV1,
             wl_seat::{NodeSeatState, SeatId, WlSeatGlobal},
             wl_surface::{
-                xdg_surface::{XdgSurface, XdgSurfaceError, XdgSurfaceExt},
+                xdg_surface::{
+                    xdg_toplevel::xdg_dialog_v1::XdgDialogV1, XdgSurface, XdgSurfaceError,
+                    XdgSurfaceExt,
+                },
                 WlSurface,
             },
             xdg_toplevel_drag_v1::XdgToplevelDragV1,
@@ -99,6 +104,7 @@ pub struct XdgToplevel {
     toplevel_data: ToplevelData,
     pub drag: CloneCell<Option<Rc<XdgToplevelDragV1>>>,
     is_mapped: Cell<bool>,
+    dialog: CloneCell<Option<Rc<XdgDialogV1>>>,
 }
 
 impl Debug for XdgToplevel {
@@ -137,6 +143,7 @@ impl XdgToplevel {
             ),
             drag: Default::default(),
             is_mapped: Cell::new(false),
+            dialog: Default::default(),
         }
     }
 
@@ -454,6 +461,7 @@ impl Object for XdgToplevel {
     fn break_loops(&self) {
         self.tl_destroy();
         self.parent.set(None);
+        self.dialog.set(None);
         let _children = mem::take(&mut *self.children.borrow_mut());
     }
 }

src/ifs/wl_surface/xdg_surface/xdg_toplevel/xdg_dialog_v1.rs

@@ -0,0 +1,73 @@
+use {
+    crate::{
+        client::{Client, ClientError},
+        ifs::wl_surface::xdg_surface::xdg_toplevel::XdgToplevel,
+        leaks::Tracker,
+        object::{Object, Version},
+        wire::{xdg_dialog_v1::*, XdgDialogV1Id, XdgToplevelId},
+    },
+    std::{fmt::Debug, rc::Rc},
+    thiserror::Error,
+};
+
+pub struct XdgDialogV1 {
+    pub id: XdgDialogV1Id,
+    pub client: Rc<Client>,
+    pub toplevel: Rc<XdgToplevel>,
+    pub tracker: Tracker<Self>,
+    pub version: Version,
+}
+
+impl XdgDialogV1 {
+    fn detach(&self) {
+        self.toplevel.dialog.take();
+    }
+
+    pub fn install(self: &Rc<Self>) -> Result<(), XdgDialogV1Error> {
+        if self.toplevel.dialog.is_some() {
+            return Err(XdgDialogV1Error::AlreadyAttached(self.toplevel.id));
+        }
+        self.toplevel.dialog.set(Some(self.clone()));
+        Ok(())
+    }
+}
+
+impl XdgDialogV1RequestHandler for XdgDialogV1 {
+    type Error = XdgDialogV1Error;
+
+    fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        self.detach();
+        self.client.remove_obj(self)?;
+        Ok(())
+    }
+
+    fn set_modal(&self, _req: SetModal, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+
+    fn unset_modal(&self, _req: UnsetModal, _slf: &Rc<Self>) -> Result<(), Self::Error> {
+        Ok(())
+    }
+}
+
+object_base! {
+    self = XdgDialogV1;
+    version = self.version;
+}
+
+impl Object for XdgDialogV1 {
+    fn break_loops(&self) {
+        self.detach();
+    }
+}
+
+simple_add_obj!(XdgDialogV1);
+
+#[derive(Debug, Error)]
+pub enum XdgDialogV1Error {
+    #[error(transparent)]
+    ClientError(Box<ClientError>),
+    #[error("Toplevel {0} already has an xdg_dialog_v1")]
+    AlreadyAttached(XdgToplevelId),
+}
+efrom!(XdgDialogV1Error, ClientError);