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Auto merge of #25773 - Manishearth:input-sources-change, r=jdm

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Always trigger an input sources change event on session creation

Fixes our behavior to match the spec, and to specifically do it in a way
that makes sense. This is also what Chromium does currently, though I'm
not sure if it does the scheduling the same way.

The spec for this may change, see https://github.com/immersive-web/webxr/issues/961.

This fix, along with https://github.com/servo/servo/pull/25770 , makes
three.js content work on servo. Instead of this fix we can also wait for
https://github.com/mrdoob/three.js/issues/18638 to land (which isn't
certain until we figure out more about
https://github.com/immersive-web/webxr/issues/961 )

Even if https://github.com/immersive-web/webxr/issues/961 decides to
choose the option that obviates this patch, we should probably keep it
for now since there's already content out in the wild relying on this
behavior.

r? @jdm @asajeffrey
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bors-servo 2020-02-16 03:10:56 -05:00 • committed by GitHub
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3 changed files with 47 additions and 24 deletions
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4
components/script/dom/xr.rs
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@ -285,7 +285,6 @@ impl XR {
return;
},
};
let session = XRSession::new(&self.global(), session, mode, frame_receiver);
if mode == XRSessionMode::Inline {
self.active_inline_sessions
@ -295,6 +294,9 @@ impl XR {
self.set_active_immersive_session(&session);
}
promise.resolve_native(&session);
// https://github.com/immersive-web/webxr/issues/961
// This must be called _after_ the promise is resolved
session.setup_initial_inputs();
}
pub fn get_displays(&self) -> Result<Vec<DomRoot<VRDisplay>>, ()> {