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use niri_config::layer_rule::{LayerRule, Match};
use niri_config::utils::MergeWith as _;
use niri_config::{BlockOutFrom, CornerRadius, ShadowRule};
use smithay::desktop::LayerSurface;
pub mod mapped;
pub use mapped::MappedLayer;
/// Rules fully resolved for a layer-shell surface.
#[derive(Debug, PartialEq)]
pub struct ResolvedLayerRules {
/// Extra opacity to draw this layer surface with.
pub opacity: Option<f32>,
/// Whether to block out this layer surface from certain render targets.
pub block_out_from: Option<BlockOutFrom>,
/// Shadow overrides.
pub shadow: ShadowRule,
/// Corner radius to assume this layer surface has.
pub geometry_corner_radius: Option<CornerRadius>,
/// Whether to place this layer surface within the overview backdrop.
pub place_within_backdrop: bool,
/// Whether to bob this window up and down.
pub baba_is_float: bool,
}
impl ResolvedLayerRules {
pub const fn empty() -> Self {
Self {
opacity: None,
block_out_from: None,
shadow: ShadowRule {
off: false,
on: false,
offset: None,
softness: None,
spread: None,
draw_behind_window: None,
color: None,
inactive_color: None,
},
geometry_corner_radius: None,
place_within_backdrop: false,
baba_is_float: false,
}
}
pub fn compute(rules: &[LayerRule], surface: &LayerSurface, is_at_startup: bool) -> Self {
let _span = tracy_client::span!("ResolvedLayerRules::compute");
let mut resolved = ResolvedLayerRules::empty();
for rule in rules {
let matches = |m: &Match| {
if let Some(at_startup) = m.at_startup {
if at_startup != is_at_startup {
return false;
}
}
surface_matches(surface, m)
};
if !(rule.matches.is_empty() || rule.matches.iter().any(matches)) {
continue;
}
if rule.excludes.iter().any(matches) {
continue;
}
if let Some(x) = rule.opacity {
resolved.opacity = Some(x);
}
if let Some(x) = rule.block_out_from {
resolved.block_out_from = Some(x);
}
if let Some(x) = rule.geometry_corner_radius {
resolved.geometry_corner_radius = Some(x);
}
if let Some(x) = rule.place_within_backdrop {
resolved.place_within_backdrop = x;
}
if let Some(x) = rule.baba_is_float {
resolved.baba_is_float = x;
}
resolved.shadow.merge_with(&rule.shadow);
}
resolved
}
}
fn surface_matches(surface: &LayerSurface, m: &Match) -> bool {
if let Some(namespace_re) = &m.namespace {
if !namespace_re.0.is_match(surface.namespace()) {
return false;
}
}
true
}
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