80 lines
2.1 KiB
Rust
80 lines
2.1 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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scale::Scale,
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utils::cell_ext::CellExt,
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wire::{WpFractionalScaleV1Id, wp_fractional_scale_v1::*},
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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 WpFractionalScaleV1 {
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pub id: WpFractionalScaleV1Id,
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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 WpFractionalScaleV1 {
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pub fn new(id: WpFractionalScaleV1Id, surface: &Rc<WlSurface>, version: Version) -> 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<(), WpFractionalScaleError> {
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if self.surface.fractional_scale.is_some() {
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return Err(WpFractionalScaleError::Exists);
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}
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self.surface.fractional_scale.set(Some(self.clone()));
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Ok(())
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}
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pub fn send_preferred_scale(&self) {
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let scale = match self.client.wire_scale.is_some() {
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true => Scale::from_int(1),
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false => self.surface.output.get().global.persistent.scale.get(),
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};
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self.client.event(PreferredScale {
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self_id: self.id,
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scale: scale.to_wl(),
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});
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}
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}
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impl WpFractionalScaleV1RequestHandler for WpFractionalScaleV1 {
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type Error = WpFractionalScaleError;
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fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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self.surface.fractional_scale.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 = WpFractionalScaleV1;
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version = self.version;
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}
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impl Object for WpFractionalScaleV1 {}
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simple_add_obj!(WpFractionalScaleV1);
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#[derive(Debug, Error)]
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pub enum WpFractionalScaleError {
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#[error(transparent)]
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ClientError(Box<ClientError>),
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#[error("The surface already has a fractional scale extension attached")]
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Exists,
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}
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efrom!(WpFractionalScaleError, ClientError);
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