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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::VREyeParametersBinding;
use dom::bindings::codegen::Bindings::VREyeParametersBinding::VREyeParametersMethods;
use dom::bindings::reflector::{Reflector, reflect_dom_object};
use dom::bindings::root::{Dom, DomRoot};
use dom::globalscope::GlobalScope;
use dom::vrfieldofview::VRFieldOfView;
use dom_struct::dom_struct;
use js::jsapi::{Heap, JSContext, JSObject};
use js::typedarray::{Float32Array, CreateWith};
use std::default::Default;
use std::ptr;
use webvr_traits::WebVREyeParameters;
#[dom_struct]
pub struct VREyeParameters {
reflector_: Reflector,
#[ignore_heap_size_of = "Defined in rust-webvr"]
parameters: DomRefCell<WebVREyeParameters>,
offset: Heap<*mut JSObject>,
fov: Dom<VRFieldOfView>,
}
unsafe_no_jsmanaged_fields!(WebVREyeParameters);
impl VREyeParameters {
fn new_inherited(parameters: WebVREyeParameters, fov: &VRFieldOfView) -> VREyeParameters {
VREyeParameters {
reflector_: Reflector::new(),
parameters: DomRefCell::new(parameters),
offset: Heap::default(),
fov: Dom::from_ref(&*fov)
}
}
#[allow(unsafe_code)]
pub fn new(parameters: WebVREyeParameters, global: &GlobalScope) -> DomRoot<VREyeParameters> {
let fov = VRFieldOfView::new(&global, parameters.field_of_view.clone());
let cx = global.get_cx();
rooted!(in (cx) let mut array = ptr::null_mut());
unsafe {
let _ = Float32Array::create(cx, CreateWith::Slice(¶meters.offset), array.handle_mut());
}
let eye_parameters = reflect_dom_object(Box::new(VREyeParameters::new_inherited(parameters, &fov)),
global,
VREyeParametersBinding::Wrap);
eye_parameters.offset.set(array.get());
eye_parameters
}
}
impl VREyeParametersMethods for VREyeParameters {
#[allow(unsafe_code)]
// https://w3c.github.io/webvr/#dom-vreyeparameters-offset
unsafe fn Offset(&self, _cx: *mut JSContext) -> NonZero<*mut JSObject> {
NonZero::new_unchecked(self.offset.get())
}
// https://w3c.github.io/webvr/#dom-vreyeparameters-fieldofview
fn FieldOfView(&self) -> DomRoot<VRFieldOfView> {
DomRoot::from_ref(&*self.fov)
}
// https://w3c.github.io/webvr/#dom-vreyeparameters-renderwidth
fn RenderWidth(&self) -> u32 {
self.parameters.borrow().render_width
}
// https://w3c.github.io/webvr/#dom-vreyeparameters-renderheight
fn RenderHeight(&self) -> u32 {
self.parameters.borrow().render_height
}
}
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