feat: switch to exporting a factory method to gen the soundtouchnode

BREAKING CHANGE: no longer exports SoundTouchNode directly

README.md

@@ -31,25 +31,19 @@ const setupContext = function () {
 };
 ```
 
-The [AudioContext](https://developer.mozilla.org/en-US/docs/Web/API/AudioContext) [audioWorklet.addModule()](https://developer.mozilla.org/en-US/docs/Web/API/Worklet/addModule) method returns a Promise. The path
-passed to this method is the path to the SoundTouchWorklet, available
-from the build `dist/soundtouch-worklet.js`. Pathing to this file is
-important, and your server must include a 'Content-Type' header of
-`text/javascript` or `application/javascript` for the file to
-run properly.
+The [AudioContext](https://developer.mozilla.org/en-US/docs/Web/API/AudioContext) [audioWorklet.addModule()](https://developer.mozilla.org/en-US/docs/Web/API/Worklet/addModule) method returns a Promise. The path passed to this method is the path to the SoundTouchWorklet, available from the build `@soundtouchjs/audio-worklet/dist/soundtouch-worklet.js`. Pathing to this file is important, and your server must include a 'Content-Type' header of `text/javascript` or `application/javascript` for the file to run properly.
 
 _**[NOTE]**: If you are using a bundler (webpack, rollup, etc) to
 bundle your app, you may require a special 'loader' for worklets/
 web workers._
 
 ## Setting Up the AudioWorkletNode (SoundTouchNode)
 
-Once you have setup your worklet, and retrieved your raw (undecoded)
-file for processing, you can now setup your SoundTouchNode.
+Once you have setup your worklet, and retrieved your raw (undecoded) file for processing, you now need to create an instance of the SoundTouchNode. We provide a factory method for this, so that you can use polyfilled/ponyfilled WebAudio API classes if necessary.
 
 ```js
 //top of the file
-import { SoundTouchNode } from '@soundtouchjs/audio-context';
+import createSoundTouchNode from '@soundtouchjs/audio-context';
 //... and later
 
 // called from our `loadSource()` method, after we've retrieved the
@@ -58,7 +52,7 @@ const setupSoundtouch = function () {
   if (soundtouch) {
     soundtouch.off();
   }
-  soundtouch = new SoundTouchNode(audioCtx, buffer);
+  soundtouch = createSoundTouchNode(audioCtx, AudioWorkletNode, buffer);
   soundtouch.on('initialized', onInitialized);
 };
 ```

configs/babel.config.json

@@ -1,4 +1,3 @@
 {
-  "presets": ["@babel/preset-env"],
-  "plugins": ["@babel/external-helpers"]
+  "presets": ["@babel/preset-env"]
 }

public/example.js

@@ -4,7 +4,15 @@
  */
 
 // This is pulling SoundTouchJS from the local file system. See the README for proper usage.
-import SoundTouchNode from './js/soundtouch-audio-node.js';
+import createSoundTouchNode from './js/soundtouch-audio-node.js';
+
+/**
+ * https://github.com/chrisguttandin/standardized-audio-context
+ * To see this working with the standaridized-audio-context ponyfill,
+ * uncomment these two lines
+ */
+//import sac from 'https://dev.jspm.io/npm:standardized-audio-context';
+//const { AudioContext, AudioWorkletNode } = sac;
 
 const loadBtn = document.getElementById('load');
 const playBtn = document.getElementById('play');
@@ -92,7 +100,7 @@ const setupSoundtouch = function () {
   if (soundtouch) {
     soundtouch.off();
   }
-  soundtouch = new SoundTouchNode(audioCtx, buffer);
+  soundtouch = createSoundTouchNode(audioCtx, AudioWorkletNode, buffer);
   soundtouch.on('initialized', onInitialized);
 };
 

scripts/rollup.config.js

@@ -7,7 +7,7 @@ import pkg from '../package.json';
 
 export default [
   {
-    input: path.join(__dirname, '../src/SoundTouchNode.js'),
+    input: path.join(__dirname, '../src/createSoundTouchNode.js'),
     output: [
       {
         file: pkg.module,
@@ -35,7 +35,7 @@ export default [
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */\n`,
-        sourcemap: true,
+        sourcemap: false,
         exports: 'named',
       },
     ],
@@ -46,7 +46,7 @@ export default [
       }),
       eslint(),
       babel({
-        babelHelpers: 'external',
+        babelHelpers: 'bundled',
         configFile: path.resolve(__dirname, '../configs/babel.config.json'),
       }),
       cleanup(),