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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 http://mozilla.org/MPL/2.0/. */
use core::nonzero::NonZero;
use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::VRStageParametersBinding;
use dom::bindings::codegen::Bindings::VRStageParametersBinding::VRStageParametersMethods;
use dom::bindings::js::Root;
use dom::bindings::num::Finite;
use dom::bindings::reflector::{DomObject, Reflector, reflect_dom_object};
use dom::globalscope::GlobalScope;
use js::jsapi::{Heap, JSContext, JSObject};
use js::typedarray::Float32Array;
use webvr_traits::WebVRStageParameters;
#[dom_struct]
pub struct VRStageParameters {
reflector_: Reflector,
#[ignore_heap_size_of = "Defined in rust-webvr"]
parameters: DOMRefCell<WebVRStageParameters>,
transform: Heap<*mut JSObject>,
}
unsafe_no_jsmanaged_fields!(WebVRStageParameters);
impl VRStageParameters {
#[allow(unsafe_code)]
#[allow(unrooted_must_root)]
fn new_inherited(parameters: WebVRStageParameters, global: &GlobalScope) -> VRStageParameters {
let stage = VRStageParameters {
reflector_: Reflector::new(),
parameters: DOMRefCell::new(parameters),
transform: Heap::default()
};
unsafe {
let _ = Float32Array::create(global.get_cx(),
stage.parameters.borrow().sitting_to_standing_transform.len() as u32,
Some(&stage.parameters.borrow().sitting_to_standing_transform),
stage.transform.handle_mut());
}
stage
}
pub fn new(parameters: WebVRStageParameters, global: &GlobalScope) -> Root<VRStageParameters> {
reflect_dom_object(box VRStageParameters::new_inherited(parameters, global),
global,
VRStageParametersBinding::Wrap)
}
#[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
unsafe fn SittingToStandingTransform(&self, _cx: *mut JSContext) -> NonZero<*mut JSObject> {
NonZero::new(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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