33 lines
885 B
TypeScript
33 lines
885 B
TypeScript
class TransportProcessor extends AudioWorkletProcessor {
|
|
|
|
started: boolean;
|
|
|
|
constructor(options: AudioWorkletNodeOptions) {
|
|
super();
|
|
this.port.addEventListener("message", this.handleMessage);
|
|
this.port.start();
|
|
this.started = false;
|
|
}
|
|
|
|
handleMessage = (message: MessageEvent) => {
|
|
if (message.data && message.data.type === "ping") {
|
|
this.port.postMessage(message.data);
|
|
} else if (message.data === "start") {
|
|
this.started = true;
|
|
} else if (message.data === "pause") {
|
|
this.started = false;
|
|
} else if (message.data === "stop") {
|
|
this.started = false;
|
|
}
|
|
};
|
|
|
|
process() {
|
|
if (this.started) this.port.postMessage({ type: "bang", currentTime });
|
|
return true;
|
|
}
|
|
}
|
|
|
|
registerProcessor(
|
|
"transport",
|
|
TransportProcessor
|
|
); |