49 lines
1.1 KiB
Rust
49 lines
1.1 KiB
Rust
use {
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crate::{
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utils::{
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buffd::{MsgParser, MsgParserError},
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clonecell::CloneCell,
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},
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wire::{wp_fractional_scale_v1::*, WpFractionalScaleV1Id},
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wl_usr::{usr_object::UsrObject, UsrCon},
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},
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std::rc::Rc,
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};
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pub struct UsrWpFractionalScale {
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pub id: WpFractionalScaleV1Id,
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pub con: Rc<UsrCon>,
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pub owner: CloneCell<Option<Rc<dyn UsrWpFractionalScaleOwner>>>,
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}
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pub trait UsrWpFractionalScaleOwner {
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fn preferred_scale(self: Rc<Self>, ev: &PreferredScale) {
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let _ = ev;
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}
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}
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impl UsrWpFractionalScale {
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fn preferred_scale(&self, parser: MsgParser<'_, '_>) -> Result<(), MsgParserError> {
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let ev: PreferredScale = self.con.parse(self, parser)?;
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if let Some(owner) = self.owner.get() {
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owner.preferred_scale(&ev);
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}
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Ok(())
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}
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}
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usr_object_base! {
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UsrWpFractionalScale, WpFractionalScaleV1;
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PREFERRED_SCALE => preferred_scale,
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}
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impl UsrObject for UsrWpFractionalScale {
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fn destroy(&self) {
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self.con.request(Destroy { self_id: self.id });
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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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