94 lines
2.6 KiB
Rust
94 lines
2.6 KiB
Rust
use {
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crate::{
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client::{Client, ClientError},
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ifs::wl_surface::WlSurface,
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leaks::Tracker,
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object::{Object, Version},
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wire::{
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wp_commit_timer_v1::{Destroy, SetTimestamp, WpCommitTimerV1RequestHandler},
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WpCommitTimerV1Id,
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},
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},
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std::rc::Rc,
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thiserror::Error,
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};
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pub struct WpCommitTimerV1 {
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pub id: WpCommitTimerV1Id,
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pub client: Rc<Client>,
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pub surface: Rc<WlSurface>,
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pub tracker: Tracker<Self>,
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pub version: Version,
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}
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impl WpCommitTimerV1 {
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pub fn new(id: WpCommitTimerV1Id, version: Version, surface: &Rc<WlSurface>) -> Self {
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Self {
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id,
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client: surface.client.clone(),
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surface: surface.clone(),
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tracker: Default::default(),
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version,
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}
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}
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pub fn install(self: &Rc<Self>) -> Result<(), WpCommitTimerV1Error> {
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if self.surface.commit_timer.is_some() {
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return Err(WpCommitTimerV1Error::Exists);
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}
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self.surface.commit_timer.set(Some(self.clone()));
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Ok(())
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}
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}
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impl WpCommitTimerV1RequestHandler for WpCommitTimerV1 {
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type Error = WpCommitTimerV1Error;
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fn set_timestamp(&self, req: SetTimestamp, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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if req.tv_nsec >= 1_000_000_000 {
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return Err(WpCommitTimerV1Error::InvalidNsec);
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}
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let nsec = (((req.tv_sec_hi as u64) << 32) | (req.tv_sec_lo as u64))
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.checked_mul(1_000_000_000)
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.and_then(|n| n.checked_add(req.tv_nsec as u64));
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let Some(nsec) = nsec else {
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return Err(WpCommitTimerV1Error::Overflow);
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};
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let pending = &mut *self.surface.pending.borrow_mut();
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if pending.commit_time.is_some() {
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return Err(WpCommitTimerV1Error::TimestampExists);
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}
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pending.commit_time = Some(nsec);
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Ok(())
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}
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fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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self.surface.commit_timer.take();
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self.client.remove_obj(self)?;
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Ok(())
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}
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}
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object_base! {
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self = WpCommitTimerV1;
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version = self.version;
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}
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impl Object for WpCommitTimerV1 {}
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simple_add_obj!(WpCommitTimerV1);
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#[derive(Debug, Error)]
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pub enum WpCommitTimerV1Error {
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#[error(transparent)]
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ClientError(Box<ClientError>),
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#[error("The surface already has a commit timer extension attached")]
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Exists,
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#[error("The tv_nsec is larger than 999_999_999")]
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InvalidNsec,
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#[error("The timestamp overflowed")]
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Overflow,
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#[error("The commit already has a timestamp")]
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TimestampExists,
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}
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efrom!(WpCommitTimerV1Error, ClientError);
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