90 lines
2.2 KiB
Rust
90 lines
2.2 KiB
Rust
use {
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crate::{
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ifs::jay_toplevel::ID_SINCE,
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object::Version,
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utils::clonecell::CloneCell,
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wire::{JaySelectToplevelId, jay_select_toplevel::*},
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wl_usr::{
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UsrCon,
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usr_ifs::usr_jay_toplevel::{UsrJayToplevel, UsrJayToplevelOwner},
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usr_object::UsrObject,
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},
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},
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std::{convert::Infallible, rc::Rc},
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};
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pub struct UsrJaySelectToplevel {
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pub id: JaySelectToplevelId,
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pub con: Rc<UsrCon>,
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pub owner: CloneCell<Option<Rc<dyn UsrJaySelectToplevelOwner>>>,
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pub version: Version,
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}
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impl UsrJaySelectToplevel {
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fn send(&self, tl: Option<Rc<UsrJayToplevel>>) {
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if let Some(owner) = self.owner.get() {
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owner.done(tl);
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} else {
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if let Some(tl) = tl {
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self.con.remove_obj(&*tl);
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}
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}
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self.con.remove_obj(self);
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}
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}
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pub trait UsrJaySelectToplevelOwner {
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fn done(&self, toplevel: Option<Rc<UsrJayToplevel>>);
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}
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impl JaySelectToplevelEventHandler for UsrJaySelectToplevel {
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type Error = Infallible;
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fn done(&self, ev: Done, slf: &Rc<Self>) -> Result<(), Self::Error> {
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let tl = if ev.id.is_none() {
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None
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} else {
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let tl = Rc::new(UsrJayToplevel {
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id: ev.id,
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con: self.con.clone(),
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owner: Default::default(),
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version: self.version,
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toplevel_id: Default::default(),
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});
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self.con.add_object(tl.clone());
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Some(tl)
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};
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'send: {
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if self.version >= ID_SINCE
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&& let Some(tl) = tl
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{
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tl.owner.set(Some(slf.clone()));
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break 'send;
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}
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self.send(tl);
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}
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Ok(())
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}
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}
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impl UsrJayToplevelOwner for UsrJaySelectToplevel {
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fn done(&self, tl: &Rc<UsrJayToplevel>) {
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tl.owner.take();
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self.send(Some(tl.clone()));
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}
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}
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usr_object_base! {
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self = UsrJaySelectToplevel = JaySelectToplevel;
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version = self.version;
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}
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impl UsrObject for UsrJaySelectToplevel {
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fn destroy(&self) {
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// nothing
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}
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fn break_loops(&self) {
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self.owner.take();
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}
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}
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