78 lines
2.2 KiB
Rust
78 lines
2.2 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::{WpAlphaModifierSurfaceV1Id, wp_alpha_modifier_surface_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 WpAlphaModifierSurfaceV1 {
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pub id: WpAlphaModifierSurfaceV1Id,
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pub version: Version,
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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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}
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impl WpAlphaModifierSurfaceV1 {
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pub fn new(id: WpAlphaModifierSurfaceV1Id, surface: &Rc<WlSurface>, version: Version) -> Self {
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Self {
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id,
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version,
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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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}
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}
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pub fn install(self: &Rc<Self>) -> Result<(), WpAlphaModifierSurfaceV1Error> {
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if self.surface.alpha_modifier.is_some() {
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return Err(WpAlphaModifierSurfaceV1Error::Exists);
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}
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self.surface.alpha_modifier.set(Some(self.clone()));
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Ok(())
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}
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}
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impl WpAlphaModifierSurfaceV1RequestHandler for WpAlphaModifierSurfaceV1 {
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type Error = WpAlphaModifierSurfaceV1Error;
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fn destroy(&self, _req: Destroy, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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self.surface.alpha_modifier.take();
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self.surface.pending.borrow_mut().alpha_multiplier = Some(None);
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self.client.remove_obj(self)?;
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Ok(())
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}
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fn set_multiplier(&self, req: SetMultiplier, _slf: &Rc<Self>) -> Result<(), Self::Error> {
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let multiplier = if req.factor == u32::MAX {
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None
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} else {
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Some(((req.factor as f64) / (u32::MAX as f64)) as f32)
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};
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self.surface.pending.borrow_mut().alpha_multiplier = Some(multiplier);
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Ok(())
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}
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}
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object_base! {
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self = WpAlphaModifierSurfaceV1;
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version = self.version;
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}
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impl Object for WpAlphaModifierSurfaceV1 {}
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simple_add_obj!(WpAlphaModifierSurfaceV1);
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#[derive(Debug, Error)]
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pub enum WpAlphaModifierSurfaceV1Error {
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#[error(transparent)]
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ClientError(Box<ClientError>),
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#[error("The surface already has an alpha modifier extension attached")]
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Exists,
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}
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efrom!(WpAlphaModifierSurfaceV1Error, ClientError);
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