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AudioContext.resume() implementation

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This commit is contained in:
Fernando Jiménez Moreno 2018-06-22 15:24:09 +02:00
parent 547e6e84b0
commit 01f3951c66
1 changed files with 29 additions and 4 deletions
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33
components/script/dom/baseaudiocontext.rs
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@ -9,6 +9,7 @@ use dom::bindings::codegen::Bindings::AudioNodeBinding::{ChannelCountMode, Chann
use dom::bindings::codegen::Bindings::BaseAudioContextBinding::BaseAudioContextMethods; use dom::bindings::codegen::Bindings::BaseAudioContextBinding::BaseAudioContextMethods;
use dom::bindings::codegen::Bindings::BaseAudioContextBinding::AudioContextState; use dom::bindings::codegen::Bindings::BaseAudioContextBinding::AudioContextState;
use dom::bindings::codegen::Bindings::OscillatorNodeBinding::OscillatorOptions; use dom::bindings::codegen::Bindings::OscillatorNodeBinding::OscillatorOptions;
use dom::bindings::error::Error;
use dom::bindings::inheritance::Castable; use dom::bindings::inheritance::Castable;
use dom::bindings::num::Finite; use dom::bindings::num::Finite;
use dom::bindings::refcounted::Trusted; use dom::bindings::refcounted::Trusted;
@ -84,8 +85,7 @@ impl BaseAudioContext {
// https://webaudio.github.io/web-audio-api/#allowed-to-start // https://webaudio.github.io/web-audio-api/#allowed-to-start
pub fn is_allowed_to_start(&self) -> bool { pub fn is_allowed_to_start(&self) -> bool {
let state: AudioContextState = self.audio_graph.state().into(); self.audio_graph.state() == ProcessingState::Suspended
state == AudioContextState::Suspended
} }
pub fn resume(&self) { pub fn resume(&self) {
@ -128,8 +128,33 @@ impl BaseAudioContextMethods for BaseAudioContext {
// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-resume // https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-resume
#[allow(unrooted_must_root)] #[allow(unrooted_must_root)]
fn Resume(&self) -> Rc<Promise> { fn Resume(&self) -> Rc<Promise> {
// TODO // Step 1.
Promise::new(&self.global()) let promise = Promise::new(&self.global());
// Step 2.
let state = self.audio_graph.state();
if state == ProcessingState::Closed {
promise.reject_error(Error::InvalidState);
return promise;
}
// Step 3.
if state == ProcessingState::Running {
promise.resolve_native(&());
return promise;
}
// Step 4.
if !self.is_allowed_to_start() {
self.pending_resume_promises.borrow_mut().push(promise.clone());
return promise;
}
// Steps 5 and 6.
self.resume();
// Step 7.
promise
} }
// https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-destination // https://webaudio.github.io/web-audio-api/#dom-baseaudiocontext-destination