servo/components/script/dom/xrview.rs
Samson 9514f670d1
No tracing of nop traceable fields (#29926)
* Add `no_trace` option to JSTraceable derive

* NoTrace wrapper

* Port some types to no_trace schematics

* Fixing my unsafe mistakes (not tracing traceables)

* Add docs & safety guards for no_trace

Safety guards (trait shenanigans) guarantees safety usage of `no_trace`

* Port canvas_traits to no_trace

* Port servo_media to no_trace

* Port net_traits to no_trace

* Port style to no_trace

* Port webgpu to no_trace

* Port script_traits to no_trace

* Port canvas_traits, devtools_traits, embedder_traits, profile_traits to no_trace

* unrooted_must_root lint in seperate file

* Add trace_in_no_trace_lint as script_plugin

* Composable types in must_not_have_traceable

* Introduced HashMapTracedValues wrapper

* `HashMap<NoTrace<K>,V>`->`HashMapTracedValues<K,V>`

* Port rest of servo's types to no_trace

* Port html5ever, euclid, mime and http to no_trace

* Port remaining externals to no_trace

* Port webxr and Arc<Mutex<_>>

* Fix spelling in notrace doc
2023-08-04 10:17:43 +00:00

105 lines
3.1 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use crate::dom::bindings::codegen::Bindings::XRViewBinding::{XREye, XRViewMethods};
use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::bindings::utils::create_typed_array;
use crate::dom::globalscope::GlobalScope;
use crate::dom::xrrigidtransform::XRRigidTransform;
use crate::dom::xrsession::{cast_transform, BaseSpace, BaseTransform, XRSession};
use crate::script_runtime::JSContext;
use dom_struct::dom_struct;
use euclid::RigidTransform3D;
use js::jsapi::{Heap, JSObject};
use std::ptr::NonNull;
use webxr_api::{ApiSpace, View};
#[dom_struct]
pub struct XRView {
reflector_: Reflector,
session: Dom<XRSession>,
eye: XREye,
viewport_index: usize,
#[ignore_malloc_size_of = "mozjs"]
proj: Heap<*mut JSObject>,
#[ignore_malloc_size_of = "defined in rust-webxr"]
#[no_trace]
view: View<ApiSpace>,
transform: Dom<XRRigidTransform>,
}
impl XRView {
fn new_inherited(
session: &XRSession,
transform: &XRRigidTransform,
eye: XREye,
viewport_index: usize,
view: View<ApiSpace>,
) -> XRView {
XRView {
reflector_: Reflector::new(),
session: Dom::from_ref(session),
eye,
viewport_index,
proj: Heap::default(),
view,
transform: Dom::from_ref(transform),
}
}
pub fn new<V: Copy>(
global: &GlobalScope,
session: &XRSession,
view: &View<V>,
eye: XREye,
viewport_index: usize,
to_base: &BaseTransform,
) -> DomRoot<XRView> {
let transform: RigidTransform3D<f32, V, BaseSpace> = view.transform.then(&to_base);
let transform = XRRigidTransform::new(global, cast_transform(transform));
reflect_dom_object(
Box::new(XRView::new_inherited(
session,
&transform,
eye,
viewport_index,
view.cast_unit(),
)),
global,
)
}
pub fn session(&self) -> &XRSession {
&self.session
}
pub fn viewport_index(&self) -> usize {
self.viewport_index
}
}
impl XRViewMethods for XRView {
/// https://immersive-web.github.io/webxr/#dom-xrview-eye
fn Eye(&self) -> XREye {
self.eye
}
/// https://immersive-web.github.io/webxr/#dom-xrview-projectionmatrix
fn ProjectionMatrix(&self, _cx: JSContext) -> NonNull<JSObject> {
if self.proj.get().is_null() {
let cx = GlobalScope::get_cx();
// row_major since euclid uses row vectors
let proj = self.view.projection.to_array();
create_typed_array(cx, &proj, &self.proj);
}
NonNull::new(self.proj.get()).unwrap()
}
/// https://immersive-web.github.io/webxr/#dom-xrview-transform
fn Transform(&self) -> DomRoot<XRRigidTransform> {
DomRoot::from_ref(&self.transform)
}
}