Tone.js/Tone/fromContext.ts
Yotam Mann aaf880c925
Using web-test-runner for tests, updating import paths (#1242)
* WIP moving tests to web-test-runner

* updating thresholds

* Adding file extensions

* Testing integrations

* linting

* fixing dep

* moving back to root dir

* prettier all of the files

* updating eslint rules to use with prettier

* remove import package

* moving tsignore around

* removing unneeded ignores

* all tests run on puppeteer, no need for testing guards

* linting

* import type syntax

* cleaning up

* Update package.json
2024-05-03 14:31:14 -04:00

81 lines
2.6 KiB
TypeScript

import * as Classes from "./classes.js";
import { TransportClass } from "./core/clock/Transport.js";
import { Context } from "./core/context/Context.js";
import { ListenerClass } from "./core/context/Listener.js";
import { DestinationClass } from "./core/context/Destination.js";
import { FrequencyClass } from "./core/type/Frequency.js";
import { MidiClass } from "./core/type/Midi.js";
import { TicksClass } from "./core/type/Ticks.js";
import { TimeClass } from "./core/type/Time.js";
import { TransportTimeClass } from "./core/type/TransportTime.js";
import { isDefined, isFunction } from "./core/util/TypeCheck.js";
import { omitFromObject } from "./core/util/Defaults.js";
import { DrawClass } from "./core/util/Draw.js";
type ClassesWithoutSingletons = Omit<
typeof Classes,
"Transport" | "Destination" | "Draw"
>;
/**
* The exported Tone object. Contains all of the classes that default
* to the same context and contains a singleton Transport and Destination node.
*/
type ToneObject = {
Transport: TransportClass;
Destination: DestinationClass;
Listener: ListenerClass;
Draw: DrawClass;
context: Context;
now: () => number;
immediate: () => number;
} & ClassesWithoutSingletons;
/**
* Bind the TimeBaseClass to the context
*/
function bindTypeClass(context: Context, type) {
return (...args: unknown[]) => new type(context, ...args);
}
/**
* Return an object with all of the classes bound to the passed in context
* @param context The context to bind all of the nodes to
*/
export function fromContext(context: Context): ToneObject {
const classesWithContext: Partial<ClassesWithoutSingletons> = {};
Object.keys(
omitFromObject(Classes, ["Transport", "Destination", "Draw"])
).map((key) => {
const cls = Classes[key];
if (isDefined(cls) && isFunction(cls.getDefaults)) {
classesWithContext[key] = class ToneFromContextNode extends cls {
get defaultContext(): Context {
return context;
}
};
} else {
// otherwise just copy it over
classesWithContext[key] = Classes[key];
}
});
const toneFromContext: ToneObject = {
...(classesWithContext as ClassesWithoutSingletons),
now: context.now.bind(context),
immediate: context.immediate.bind(context),
Transport: context.transport,
Destination: context.destination,
Listener: context.listener,
Draw: context.draw,
context,
// the type functions
Midi: bindTypeClass(context, MidiClass),
Time: bindTypeClass(context, TimeClass),
Frequency: bindTypeClass(context, FrequencyClass),
Ticks: bindTypeClass(context, TicksClass),
TransportTime: bindTypeClass(context, TransportTimeClass),
};
// return the object
return toneFromContext;
}