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/* 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 dom_struct::dom_struct;
use euclid::RigidTransform3D;
use js::conversions::ToJSValConvertible;
use js::jsapi::Heap;
use js::jsval::{JSVal, UndefinedValue};
use js::rust::MutableHandleValue;
use webxr_api::{Viewer, ViewerPose, Views};
use crate::dom::bindings::codegen::Bindings::XRViewBinding::XREye;
use crate::dom::bindings::codegen::Bindings::XRViewerPoseBinding::XRViewerPoseMethods;
use crate::dom::bindings::reflector::reflect_dom_object;
use crate::dom::bindings::root::DomRoot;
use crate::dom::globalscope::GlobalScope;
use crate::dom::xrpose::XRPose;
use crate::dom::xrrigidtransform::XRRigidTransform;
use crate::dom::xrsession::{cast_transform, BaseSpace, BaseTransform, XRSession};
use crate::dom::xrview::XRView;
use crate::realms::enter_realm;
use crate::script_runtime::{CanGc, JSContext};
#[dom_struct]
pub struct XRViewerPose {
pose: XRPose,
#[ignore_malloc_size_of = "mozjs"]
views: Heap<JSVal>,
}
impl XRViewerPose {
fn new_inherited(transform: &XRRigidTransform) -> XRViewerPose {
XRViewerPose {
pose: XRPose::new_inherited(transform),
views: Heap::default(),
}
}
#[allow(unsafe_code)]
pub fn new(
global: &GlobalScope,
session: &XRSession,
to_base: BaseTransform,
viewer_pose: &ViewerPose,
can_gc: CanGc,
) -> DomRoot<XRViewerPose> {
let _ac = enter_realm(global);
rooted_vec!(let mut views);
match &viewer_pose.views {
Views::Inline => views.push(XRView::new(
global,
session,
&session.inline_view(),
XREye::None,
0,
&to_base,
can_gc,
)),
Views::Mono(view) => views.push(XRView::new(
global,
session,
view,
XREye::None,
0,
&to_base,
can_gc,
)),
Views::Stereo(left, right) => {
views.push(XRView::new(
global,
session,
left,
XREye::Left,
0,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
right,
XREye::Right,
1,
&to_base,
can_gc,
));
},
Views::StereoCapture(left, right, third_eye) => {
views.push(XRView::new(
global,
session,
left,
XREye::Left,
0,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
right,
XREye::Right,
1,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
third_eye,
XREye::None,
2,
&to_base,
can_gc,
));
},
Views::Cubemap(front, left, right, top, bottom, back) => {
views.push(XRView::new(
global,
session,
front,
XREye::None,
0,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
left,
XREye::None,
1,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
right,
XREye::None,
2,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
top,
XREye::None,
3,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
bottom,
XREye::None,
4,
&to_base,
can_gc,
));
views.push(XRView::new(
global,
session,
back,
XREye::None,
5,
&to_base,
can_gc,
));
},
};
let transform: RigidTransform3D<f32, Viewer, BaseSpace> =
viewer_pose.transform.then(&to_base);
let transform = XRRigidTransform::new(global, cast_transform(transform), can_gc);
let pose = reflect_dom_object(
Box::new(XRViewerPose::new_inherited(&transform)),
global,
can_gc,
);
let cx = GlobalScope::get_cx();
unsafe {
rooted!(in(*cx) let mut jsval = UndefinedValue());
views.to_jsval(*cx, jsval.handle_mut());
pose.views.set(jsval.get());
}
pose
}
}
impl XRViewerPoseMethods<crate::DomTypeHolder> for XRViewerPose {
/// <https://immersive-web.github.io/webxr/#dom-xrviewerpose-views>
fn Views(&self, _cx: JSContext, mut retval: MutableHandleValue) {
retval.set(self.views.get())
}
}