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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 crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::VRStageParametersBinding;
use crate::dom::bindings::codegen::Bindings::VRStageParametersBinding::VRStageParametersMethods;
use crate::dom::bindings::num::Finite;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
use crate::dom::bindings::root::DomRoot;
use crate::dom::globalscope::GlobalScope;
use crate::script_runtime::JSContext;
use dom_struct::dom_struct;
use js::jsapi::{Heap, JSObject};
use js::typedarray::{CreateWith, Float32Array};
use std::ptr;
use std::ptr::NonNull;
use webvr_traits::WebVRStageParameters;
#[dom_struct]
pub struct VRStageParameters {
reflector_: Reflector,
#[ignore_malloc_size_of = "Defined in rust-webvr"]
parameters: DomRefCell<WebVRStageParameters>,
#[ignore_malloc_size_of = "mozjs"]
transform: Heap<*mut JSObject>,
}
unsafe_no_jsmanaged_fields!(WebVRStageParameters);
impl VRStageParameters {
fn new_inherited(parameters: WebVRStageParameters) -> VRStageParameters {
VRStageParameters {
reflector_: Reflector::new(),
parameters: DomRefCell::new(parameters),
transform: Heap::default(),
}
}
#[allow(unsafe_code)]
pub fn new(
parameters: WebVRStageParameters,
global: &GlobalScope,
) -> DomRoot<VRStageParameters> {
let cx = global.get_cx();
rooted!(in (cx) let mut array = ptr::null_mut::<JSObject>());
unsafe {
let _ = Float32Array::create(
cx,
CreateWith::Slice(¶meters.sitting_to_standing_transform),
array.handle_mut(),
);
}
let stage_parameters = reflect_dom_object(
Box::new(VRStageParameters::new_inherited(parameters)),
global,
VRStageParametersBinding::Wrap,
);
stage_parameters.transform.set(array.get());
stage_parameters
}
#[allow(unsafe_code)]
pub fn update(&self, parameters: &WebVRStageParameters) {
unsafe {
let cx = self.global().get_cx();
typedarray!(in(cx) let array: Float32Array = self.transform.get());
if let Ok(mut array) = array {
array.update(¶meters.sitting_to_standing_transform);
}
}
*self.parameters.borrow_mut() = parameters.clone();
}
}
impl VRStageParametersMethods for VRStageParameters {
#[allow(unsafe_code)]
// https://w3c.github.io/webvr/#dom-vrstageparameters-sittingtostandingtransform
fn SittingToStandingTransform(&self, _cx: JSContext) -> NonNull<JSObject> {
unsafe { NonNull::new_unchecked(self.transform.get()) }
}
// https://w3c.github.io/webvr/#dom-vrstageparameters-sizex
fn SizeX(&self) -> Finite<f32> {
Finite::wrap(self.parameters.borrow().size_x)
}
// https://w3c.github.io/webvr/#dom-vrstageparameters-sizez
fn SizeZ(&self) -> Finite<f32> {
Finite::wrap(self.parameters.borrow().size_z)
}
}
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