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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::XRInputSourceArrayBinding;
use crate::dom::bindings::codegen::Bindings::XRInputSourceArrayBinding::XRInputSourceArrayMethods;
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::event::Event;
use crate::dom::globalscope::GlobalScope;
use crate::dom::xrinputsource::XRInputSource;
use crate::dom::xrinputsourceschangeevent::XRInputSourcesChangeEvent;
use crate::dom::xrsession::XRSession;
use dom_struct::dom_struct;
use webxr_api::{InputId, InputSource};
#[dom_struct]
pub struct XRInputSourceArray {
reflector_: Reflector,
input_sources: DomRefCell<Vec<Dom<XRInputSource>>>,
}
impl XRInputSourceArray {
fn new_inherited() -> XRInputSourceArray {
XRInputSourceArray {
reflector_: Reflector::new(),
input_sources: DomRefCell::new(vec![]),
}
}
pub fn new(global: &GlobalScope) -> DomRoot<XRInputSourceArray> {
reflect_dom_object(
Box::new(XRInputSourceArray::new_inherited()),
global,
XRInputSourceArrayBinding::Wrap,
)
}
pub fn set_initial_inputs(&self, session: &XRSession) {
let mut input_sources = self.input_sources.borrow_mut();
let global = self.global();
session.with_session(|sess| {
for info in sess.initial_inputs() {
// XXXManishearth we should be able to listen for updates
// to the input sources
let input = XRInputSource::new(&global, &session, *info);
input_sources.push(Dom::from_ref(&input));
}
});
}
pub fn add_input_source(&self, session: &XRSession, info: InputSource) {
let mut input_sources = self.input_sources.borrow_mut();
let global = self.global();
let input = XRInputSource::new(&global, &session, info);
debug_assert!(
input_sources.iter().find(|i| i.id() == info.id).is_none(),
"Should never add a duplicate input id!"
);
input_sources.push(Dom::from_ref(&input));
let added = [input];
let event = XRInputSourcesChangeEvent::new(
&global,
atom!("inputsourceschange"),
false,
true,
session,
&added,
&[],
);
// Release the refcell guard
drop(input_sources);
event.upcast::<Event>().fire(session.upcast());
}
pub fn remove_input_source(&self, session: &XRSession, id: InputId) {
let mut input_sources = self.input_sources.borrow_mut();
let global = self.global();
let removed = if let Some(i) = input_sources.iter().find(|i| i.id() == id) {
[DomRoot::from_ref(&**i)]
} else {
return;
};
let event = XRInputSourcesChangeEvent::new(
&global,
atom!("inputsourceschange"),
false,
true,
session,
&[],
&removed,
);
input_sources.retain(|i| i.id() != id);
// release the refcell guard
drop(input_sources);
event.upcast::<Event>().fire(session.upcast());
}
pub fn find(&self, id: InputId) -> Option<DomRoot<XRInputSource>> {
self.input_sources
.borrow()
.iter()
.find(|x| x.id() == id)
.map(|x| DomRoot::from_ref(&**x))
}
}
impl XRInputSourceArrayMethods for XRInputSourceArray {
/// https://immersive-web.github.io/webxr/#dom-xrinputsourcearray-length
fn Length(&self) -> u32 {
self.input_sources.borrow().len() as u32
}
/// https://immersive-web.github.io/webxr/#xrinputsourcearray
fn IndexedGetter(&self, n: u32) -> Option<DomRoot<XRInputSource>> {
self.input_sources
.borrow()
.get(n as usize)
.map(|x| DomRoot::from_ref(&**x))
}
}
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