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This commit is contained in:
Nick Matantsev 2026-01-15 00:13:49 -05:00
parent 00f0ef56bc
commit bc9e97b9ac
1 changed files with 13 additions and 0 deletions
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13
packages/midi/input.mjs
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@ -8,6 +8,11 @@ import { WebMidi } from 'webmidi';
import { logger, ref } from '@strudel/core';
import { getDevice } from './util.mjs';
/**
* MIDI input device wrapper that manages connection and reconnection, tracks
* persisted CC states, etc. These instances are long-lived and are maintained as singletons
* (keyed globally by input string/number).
*/
export class MidiInput {
/**
*
@ -25,6 +30,11 @@ export class MidiInput {
this.initialDevice = this._startDeviceListener();
}
/**
* Implementation for the cc() factory function tied to this specific input.
* @param {number} cc MIDI CC number
* @param {number | undefined} chan MIDI channel (1-16) or undefined for all channels
*/
createCC(cc, chan) {
const lookupMap = chan === undefined ? this._refs : this._refsByChan[chan];
if (!(cc in lookupMap)) {
@ -71,6 +81,7 @@ export class MidiInput {
return initialDevice;
}
// Returns a promise that resolves when the specified device is connected
_waitForDevice() {
return new Promise((resolve) => {
const connListener = () => {
@ -87,6 +98,7 @@ export class MidiInput {
});
}
// Returns a promise that resolves when the specified device is disconnected
_waitForDeviceDisconnect(device) {
return new Promise((resolve) => {
const disconnListener = (e) => {
@ -162,6 +174,7 @@ export class MidiInput {
);
}
// Send CC values back to device to restore encoders and motorized sliders
_sendAllStates(device) {
const output = WebMidi.outputs.find((o) => o.name === device.name);
if (!output) {