mirror of
https://github.com/servo/servo.git
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108 lines
3.5 KiB
Rust
108 lines
3.5 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::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 std::cell::Cell;
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use webxr_api::Frame;
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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: Frame,
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active: Cell<bool>,
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animation_frame: Cell<bool>,
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}
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impl XRFrame {
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fn new_inherited(session: &XRSession, data: Frame) -> 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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active: Cell::new(false),
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animation_frame: Cell::new(false),
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}
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}
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pub fn new(global: &GlobalScope, session: &XRSession, data: Frame) -> DomRoot<XRFrame> {
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reflect_dom_object(Box::new(XRFrame::new_inherited(session, data)), global)
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}
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/// https://immersive-web.github.io/webxr/#xrframe-active
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pub fn set_active(&self, active: bool) {
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self.active.set(active);
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}
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/// https://immersive-web.github.io/webxr/#xrframe-animationframe
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pub fn set_animation_frame(&self, animation_frame: bool) {
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self.animation_frame.set(animation_frame);
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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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if !self.active.get() || !self.animation_frame.get() {
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return Err(Error::InvalidState);
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}
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let pose = if let Some(pose) = reference.get_viewer_pose(&self.data) {
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pose
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} else {
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return Ok(None);
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};
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Ok(Some(XRViewerPose::new(&self.global(), &self.session, pose)))
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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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if !self.active.get() {
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return Err(Error::InvalidState);
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}
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let space = if let Some(space) = space.get_pose(&self.data) {
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space
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} else {
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return Ok(None);
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};
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let relative_to = if let Some(r) = relative_to.get_pose(&self.data) {
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r
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} else {
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return Ok(None);
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};
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let pose = relative_to.inverse().pre_transform(&space);
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Ok(Some(XRPose::new(&self.global(), pose)))
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}
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}
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