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Handle cancelAnimationFrame() when called within a requestAnimationFrame() callback

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This commit is contained in:
huangjiahua 2020-05-12 11:28:51 +08:00
parent d20b7b9626
commit c253ad8399
2 changed files with 20 additions and 9 deletions
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22
components/script/dom/xrsession.rs
View file

@ -74,6 +74,8 @@ pub struct XRSession {
next_raf_id: Cell<i32>,
#[ignore_malloc_size_of = "closures are hard"]
raf_callback_list: DomRefCell<Vec<(i32, Option<Rc<XRFrameRequestCallback>>)>>,
#[ignore_malloc_size_of = "closures are hard"]
current_raf_callback_list: DomRefCell<Vec<(i32, Option<Rc<XRFrameRequestCallback>>)>>,
input_sources: Dom<XRInputSourceArray>,
// Any promises from calling end()
#[ignore_malloc_size_of = "promises are hard"]
@ -110,6 +112,7 @@ impl XRSession {
next_raf_id: Cell::new(0),
raf_callback_list: DomRefCell::new(vec![]),
current_raf_callback_list: DomRefCell::new(vec![]),
input_sources: Dom::from_ref(input_sources),
end_promises: DomRefCell::new(vec![]),
ended: Cell::new(false),
@ -395,7 +398,11 @@ impl XRSession {
// Step 3: XXXManishearth handle inline session
// Step 4-5
let mut callbacks = mem::replace(&mut *self.raf_callback_list.borrow_mut(), vec![]);
{
let mut current = self.current_raf_callback_list.borrow_mut();
assert!(current.is_empty());
mem::swap(&mut *self.raf_callback_list.borrow_mut(), &mut current);
}
let start = self.global().as_window().get_navigation_start();
let time = reduce_timing_resolution((frame.time_ns - start).to_ms());
@ -406,12 +413,18 @@ impl XRSession {
// Step 8
self.outside_raf.set(false);
for (_, callback) in callbacks.drain(..) {
let len = self.current_raf_callback_list.borrow().len();
for i in 0..len {
let callback = self.current_raf_callback_list.borrow()[i]
.1
.as_ref()
.map(|callback| Rc::clone(callback));
if let Some(callback) = callback {
let _ = callback.Call__(time, &frame, ExceptionHandling::Report);
}
}
self.outside_raf.set(true);
*self.current_raf_callback_list.borrow_mut() = vec![];
frame.set_active(false);
if self.is_immersive() {
@ -656,6 +669,11 @@ impl XRSessionMethods for XRSession {
if let Some(pair) = list.iter_mut().find(|pair| pair.0 == frame) {
pair.1 = None;
}
let mut list = self.current_raf_callback_list.borrow_mut();
if let Some(pair) = list.iter_mut().find(|pair| pair.0 == frame) {
pair.1 = None;
}
}
/// https://immersive-web.github.io/webxr/#dom-xrsession-environmentblendmode

7
tests/wpt/metadata/webxr/xrSession_cancelAnimationFrame.https.html.ini
View file

@ -1,7 +0,0 @@
[xrSession_cancelAnimationFrame.https.html]
[XRSession requestAnimationFrame callbacks can be unregistered with cancelAnimationFrame for non-immersive sessions]
expected: FAIL
[XRSession requestAnimationFrame callbacks can be unregistered with cancelAnimationFrame for immersive sessions]
expected: FAIL