mirror of
https://github.com/Tonejs/Tone.js
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f06ff17f06
* check for native context when creating AudioWorkletNode * better context check per @chrisguttandin --------- Co-authored-by: Yotam Mann <hi@yotammann.info>
85 lines
2.1 KiB
TypeScript
85 lines
2.1 KiB
TypeScript
import {
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AudioContext as stdAudioContext,
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AudioWorkletNode as stdAudioWorkletNode,
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OfflineAudioContext as stdOfflineAudioContext,
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} from "standardized-audio-context";
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import { assert } from "../util/Debug.js";
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import { isDefined } from "../util/TypeCheck.js";
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/**
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* Create a new AudioContext
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*/
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export function createAudioContext(
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options?: AudioContextOptions
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): AudioContext {
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return new stdAudioContext(options) as unknown as AudioContext;
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}
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/**
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* Create a new OfflineAudioContext
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*/
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export function createOfflineAudioContext(
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channels: number,
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length: number,
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sampleRate: number
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): OfflineAudioContext {
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return new stdOfflineAudioContext(
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channels,
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length,
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sampleRate
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) as unknown as OfflineAudioContext;
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}
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/**
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* Either the online or offline audio context
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*/
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export type AnyAudioContext = AudioContext | OfflineAudioContext;
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/**
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* Interface for things that Tone.js adds to the window
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*/
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interface ToneWindow extends Window {
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TONE_SILENCE_LOGGING?: boolean;
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TONE_DEBUG_CLASS?: string;
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BaseAudioContext: any;
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AudioWorkletNode: any;
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}
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/**
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* A reference to the window object
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* @hidden
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*/
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export const theWindow: ToneWindow | null =
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typeof self === "object" ? self : null;
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/**
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* If the browser has a window object which has an AudioContext
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* @hidden
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*/
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export const hasAudioContext =
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theWindow &&
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(theWindow.hasOwnProperty("AudioContext") ||
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theWindow.hasOwnProperty("webkitAudioContext"));
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export function createAudioWorkletNode(
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context: AnyAudioContext,
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name: string,
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options?: Partial<AudioWorkletNodeOptions>
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): AudioWorkletNode {
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assert(
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isDefined(stdAudioWorkletNode),
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"AudioWorkletNode only works in a secure context (https or localhost)"
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);
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return new (
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context instanceof theWindow?.BaseAudioContext
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? theWindow?.AudioWorkletNode
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: stdAudioWorkletNode
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)(context, name, options);
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}
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/**
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* This promise resolves to a boolean which indicates if the
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* functionality is supported within the currently used browse.
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* Taken from [standardized-audio-context](https://github.com/chrisguttandin/standardized-audio-context#issupported)
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*/
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export { isSupported as supported } from "standardized-audio-context";
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