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Use addEventListener for start and stop

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This commit is contained in:
Sander Wapstra 2020-04-26 21:38:14 +02:00
parent 15d5584f97
commit c7aed6199f
1 changed files with 19 additions and 3 deletions
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22
Tone/component/channel/Recorder.ts
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@ -102,16 +102,32 @@ export class Recorder extends ToneAudioNode<RecorderOptions> {
}
}
start(): this {
async start() {
assert(this.state !== "started", "Recorder is already started");
const startPromise = new Promise(done => {
const handleStart = () => {
this._recorder.removeEventListener("start", handleStart, false);
done();
};
this._recorder.addEventListener("start", handleStart, false);
});
this._recorder.start();
return this;
return await startPromise;
}
async stop(): Promise<Blob> {
assert(this.state !== "stopped", "Recorder is not started");
const dataPromise: Promise<Blob> = new Promise(done => {
this._recorder.ondataavailable = (e: BlobEvent) => done(e.data);
const handleData = (e: BlobEvent) => {
this._recorder.removeEventListener("dataavailable", handleData, false);
done(e.data);
};
this._recorder.addEventListener("dataavailable", handleData, false);
});
this._recorder.stop();
return await dataPromise;