use std::cell::Cell;
use dom_struct::dom_struct;
use js::rust::MutableHandleValue;
use webxr_api::SubImages;
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::XRRenderStateBinding::XRRenderStateMethods;
use crate::dom::bindings::num::Finite;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
use crate::dom::bindings::utils::to_frozen_array;
use crate::dom::globalscope::GlobalScope;
use crate::dom::xrlayer::XRLayer;
use crate::dom::xrwebgllayer::XRWebGLLayer;
use crate::script_runtime::{CanGc, JSContext};
#[dom_struct]
pub struct XRRenderState {
reflector_: Reflector,
depth_near: Cell<f64>,
depth_far: Cell<f64>,
inline_vertical_fov: Cell<Option<f64>>,
base_layer: MutNullableDom<XRWebGLLayer>,
layers: DomRefCell<Vec<Dom<XRLayer>>>,
}
impl XRRenderState {
pub fn new_inherited(
depth_near: f64,
depth_far: f64,
inline_vertical_fov: Option<f64>,
layer: Option<&XRWebGLLayer>,
layers: Vec<&XRLayer>,
) -> XRRenderState {
debug_assert!(layer.is_none() || layers.is_empty());
XRRenderState {
reflector_: Reflector::new(),
depth_near: Cell::new(depth_near),
depth_far: Cell::new(depth_far),
inline_vertical_fov: Cell::new(inline_vertical_fov),
base_layer: MutNullableDom::new(layer),
layers: DomRefCell::new(layers.into_iter().map(Dom::from_ref).collect()),
}
}
pub fn new(
global: &GlobalScope,
depth_near: f64,
depth_far: f64,
inline_vertical_fov: Option<f64>,
layer: Option<&XRWebGLLayer>,
layers: Vec<&XRLayer>,
) -> DomRoot<XRRenderState> {
reflect_dom_object(
Box::new(XRRenderState::new_inherited(
depth_near,
depth_far,
inline_vertical_fov,
layer,
layers,
)),
global,
CanGc::note(),
)
}
pub fn clone_object(&self) -> DomRoot<Self> {
XRRenderState::new(
&self.global(),
self.depth_near.get(),
self.depth_far.get(),
self.inline_vertical_fov.get(),
self.base_layer.get().as_deref(),
self.layers.borrow().iter().map(|x| &**x).collect(),
)
}
pub fn set_depth_near(&self, depth: f64) {
self.depth_near.set(depth)
}
pub fn set_depth_far(&self, depth: f64) {
self.depth_far.set(depth)
}
pub fn set_inline_vertical_fov(&self, fov: f64) {
debug_assert!(self.inline_vertical_fov.get().is_some());
self.inline_vertical_fov.set(Some(fov))
}
pub fn set_base_layer(&self, layer: Option<&XRWebGLLayer>) {
self.base_layer.set(layer)
}
pub fn set_layers(&self, layers: Vec<&XRLayer>) {
*self.layers.borrow_mut() = layers.into_iter().map(Dom::from_ref).collect();
}
pub fn with_layers<F, R>(&self, f: F) -> R
where
F: FnOnce(&[Dom<XRLayer>]) -> R,
{
let layers = self.layers.borrow();
f(&layers)
}
pub fn has_sub_images(&self, sub_images: &[SubImages]) -> bool {
if let Some(base_layer) = self.base_layer.get() {
match sub_images.len() {
0 => base_layer.layer_id().is_none(),
1 => base_layer.layer_id() == Some(sub_images[0].layer_id),
_ => false,
}
} else {
let layers = self.layers.borrow();
sub_images.len() == layers.len() &&
sub_images
.iter()
.zip(layers.iter())
.all(|(sub_image, layer)| Some(sub_image.layer_id) == layer.layer_id())
}
}
}
impl XRRenderStateMethods<crate::DomTypeHolder> for XRRenderState {
fn DepthNear(&self) -> Finite<f64> {
Finite::wrap(self.depth_near.get())
}
fn DepthFar(&self) -> Finite<f64> {
Finite::wrap(self.depth_far.get())
}
fn GetInlineVerticalFieldOfView(&self) -> Option<Finite<f64>> {
self.inline_vertical_fov.get().map(Finite::wrap)
}
fn GetBaseLayer(&self) -> Option<DomRoot<XRWebGLLayer>> {
self.base_layer.get()
}
fn Layers(&self, cx: JSContext, retval: MutableHandleValue) {
let layers = self.layers.borrow();
let layers: Vec<&XRLayer> = layers.iter().map(|x| &**x).collect();
to_frozen_array(&layers[..], cx, retval)
}
}