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https://github.com/servo/servo.git
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87 lines
2.8 KiB
Rust
87 lines
2.8 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use crate::dom::bindings::codegen::Bindings::XRFrameBinding;
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use crate::dom::bindings::codegen::Bindings::XRFrameBinding::XRFrameMethods;
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use crate::dom::bindings::error::Error;
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use crate::dom::bindings::inheritance::Castable;
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use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
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use crate::dom::bindings::root::{Dom, DomRoot};
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use crate::dom::globalscope::GlobalScope;
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use crate::dom::xrpose::XRPose;
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use crate::dom::xrreferencespace::XRReferenceSpace;
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use crate::dom::xrsession::XRSession;
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use crate::dom::xrspace::XRSpace;
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use crate::dom::xrviewerpose::XRViewerPose;
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use dom_struct::dom_struct;
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use webvr_traits::WebVRFrameData;
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#[dom_struct]
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pub struct XRFrame {
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reflector_: Reflector,
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session: Dom<XRSession>,
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#[ignore_malloc_size_of = "defined in rust-webvr"]
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data: WebVRFrameData,
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}
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impl XRFrame {
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fn new_inherited(session: &XRSession, data: WebVRFrameData) -> XRFrame {
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XRFrame {
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reflector_: Reflector::new(),
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session: Dom::from_ref(session),
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data,
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}
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}
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pub fn new(
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global: &GlobalScope,
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session: &XRSession,
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data: WebVRFrameData,
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) -> DomRoot<XRFrame> {
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reflect_dom_object(
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Box::new(XRFrame::new_inherited(session, data)),
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global,
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XRFrameBinding::Wrap,
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)
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}
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}
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impl XRFrameMethods for XRFrame {
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/// https://immersive-web.github.io/webxr/#dom-xrframe-session
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fn Session(&self) -> DomRoot<XRSession> {
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DomRoot::from_ref(&self.session)
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}
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/// https://immersive-web.github.io/webxr/#dom-xrframe-getviewerpose
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fn GetViewerPose(
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&self,
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reference: &XRReferenceSpace,
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) -> Result<Option<DomRoot<XRViewerPose>>, Error> {
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if self.session != reference.upcast::<XRSpace>().session() {
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return Err(Error::InvalidState);
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}
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let pose = reference.get_viewer_pose(&self.data);
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Ok(Some(XRViewerPose::new(
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&self.global(),
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&self.session,
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pose,
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&self.data,
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)))
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}
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/// https://immersive-web.github.io/webxr/#dom-xrframe-getpose
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fn GetPose(
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&self,
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space: &XRSpace,
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relative_to: &XRSpace,
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) -> Result<Option<DomRoot<XRPose>>, Error> {
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if self.session != space.session() || self.session != relative_to.session() {
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return Err(Error::InvalidState);
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}
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let space = space.get_pose(&self.data);
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let relative_to = relative_to.get_pose(&self.data);
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let pose = relative_to.inverse().pre_mul(&space);
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Ok(Some(XRPose::new(&self.global(), pose)))
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}
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}
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