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wry/src/ifs/xdg_toplevel_drag_manager_v1.rs
2024-04-08 20:02:29 +02:00

112 lines
2.8 KiB
Rust

use {
crate::{
client::{Client, ClientError},
globals::{Global, GlobalName},
ifs::xdg_toplevel_drag_v1::XdgToplevelDragV1,
leaks::Tracker,
object::{Object, Version},
wire::{xdg_toplevel_drag_manager_v1::*, XdgToplevelDragManagerV1Id},
},
std::rc::Rc,
thiserror::Error,
};
pub struct XdgToplevelDragManagerV1Global {
pub name: GlobalName,
}
impl XdgToplevelDragManagerV1Global {
pub fn new(name: GlobalName) -> Self {
Self { name }
}
fn bind_(
self: Rc<Self>,
id: XdgToplevelDragManagerV1Id,
client: &Rc<Client>,
version: Version,
) -> Result<(), XdgToplevelDragManagerV1Error> {
let mgr = Rc::new(XdgToplevelDragManagerV1 {
id,
client: client.clone(),
tracker: Default::default(),
version,
});
track!(client, mgr);
client.add_client_obj(&mgr)?;
Ok(())
}
}
global_base!(
XdgToplevelDragManagerV1Global,
XdgToplevelDragManagerV1,
XdgToplevelDragManagerV1Error
);
simple_add_global!(XdgToplevelDragManagerV1Global);
impl Global for XdgToplevelDragManagerV1Global {
fn singleton(&self) -> bool {
true
}
fn version(&self) -> u32 {
1
}
}
pub struct XdgToplevelDragManagerV1 {
pub id: XdgToplevelDragManagerV1Id,
pub client: Rc<Client>,
pub tracker: Tracker<Self>,
pub version: Version,
}
impl XdgToplevelDragManagerV1RequestHandler for XdgToplevelDragManagerV1 {
type Error = XdgToplevelDragManagerV1Error;
fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
self.client.remove_obj(self)?;
Ok(())
}
fn get_xdg_toplevel_drag(
&self,
req: GetXdgToplevelDrag,
_slf: &Rc<Self>,
) -> Result<(), Self::Error> {
let source = self.client.lookup(req.data_source)?;
if source.data.was_used() {
return Err(XdgToplevelDragManagerV1Error::AlreadyUsed);
}
if source.toplevel_drag.get().is_some() {
return Err(XdgToplevelDragManagerV1Error::HasDrag);
}
let drag = Rc::new(XdgToplevelDragV1::new(req.id, &source, self.version));
track!(&self.client, drag);
self.client.add_client_obj(&drag)?;
source.toplevel_drag.set(Some(drag));
Ok(())
}
}
object_base! {
self = XdgToplevelDragManagerV1;
version = self.version;
}
impl Object for XdgToplevelDragManagerV1 {}
simple_add_obj!(XdgToplevelDragManagerV1);
#[derive(Debug, Error)]
pub enum XdgToplevelDragManagerV1Error {
#[error(transparent)]
ClientError(Box<ClientError>),
#[error("The data source has already been used")]
AlreadyUsed,
#[error("The source already has a drag object")]
HasDrag,
}
efrom!(XdgToplevelDragManagerV1Error, ClientError);