feat: remove custom Thenable polyfill in favor of native promises

It should no longer be necessary. Moved it to https://github.com/lojjic/tiny-thenable for posterity.

package.json

@@ -24,7 +24,6 @@
     "mitt": "^1.2.0",
     "node-fetch": "^2.6.0",
     "postcss": "^8.2.6",
-    "promises-aplus-tests": "^2.1.2",
     "rollup": "^2.39.0",
     "rollup-plugin-buble": "^0.19.8",
     "rollup-plugin-commonjs": "^10.1.0",

packages/troika-flex-layout/src/FlexLayoutProcessor.js

@@ -1,4 +1,4 @@
-import { defineWorkerModule, ThenableWorkerModule } from 'troika-worker-utils'
+import { defineWorkerModule } from 'troika-worker-utils'
 import { typesetterWorkerModule } from 'troika-three-text'
 import yogaFactory from '../libs/yoga.factory.js'
 
@@ -285,9 +285,8 @@ export const flexLayoutProcessorWorkerModule = defineWorkerModule({
     yogaFactory,
     typesetterWorkerModule,
     createFlexLayoutProcessor,
-    ThenableWorkerModule
   ],
-  init(yogaFactory, layoutEngine, create, Thenable) {
+  init(yogaFactory, layoutEngine, create) {
     const Yoga = yogaFactory()
     function measure(params) {
       let result = null
@@ -296,9 +295,9 @@ export const flexLayoutProcessorWorkerModule = defineWorkerModule({
     }
     const process = create(Yoga, layoutEngine.loadFont, measure)
     return function(styleTree) {
-      const thenable = new Thenable()
-      process(styleTree, thenable.resolve)
-      return thenable
+      return new Promise(resolve => {
+        process(styleTree, resolve)
+      })
     }
   }
 })

packages/troika-three-text/src/SDFGenerator.js

@@ -1,4 +1,4 @@
-import { defineWorkerModule, terminateWorker, Thenable } from 'troika-worker-utils'
+import { defineWorkerModule, terminateWorker } from 'troika-worker-utils'
 import createSDFGenerator from 'webgl-sdf-generator'
 
 const now = () => (self.performance || Date).now()
@@ -48,20 +48,20 @@ const generateSDF_GL = /*#__PURE__*/function() {
     timer = queue.length ? setTimeout(nextChunk, 0) : 0
   }
   return (...args) => {
-    const thenable = Thenable()
-    queue.push(() => {
-      const start = now()
-      try {
-        mainThreadGenerator.webgl.generateIntoCanvas(...args)
-        thenable.resolve({timing: now() - start})
-      } catch(err) {
-        thenable.reject(err)
+    return new Promise((resolve, reject) => {
+      queue.push(() => {
+        const start = now()
+        try {
+          mainThreadGenerator.webgl.generateIntoCanvas(...args)
+          resolve({ timing: now() - start })
+        } catch (err) {
+          reject(err)
+        }
+      })
+      if (!timer) {
+        timer = setTimeout(nextChunk, 0)
       }
     })
-    if (!timer) {
-      timer = setTimeout(nextChunk, 0)
-    }
-    return thenable
   }
 }()
 

packages/troika-three-text/src/TextBuilder.js

@@ -1,5 +1,5 @@
 import { Color, CanvasTexture, LinearFilter } from 'three'
-import { defineWorkerModule, ThenableWorkerModule, Thenable } from 'troika-worker-utils'
+import { defineWorkerModule } from 'troika-worker-utils'
 import { createTypesetter } from './Typesetter.js'
 import { generateSDF, warmUpSDFCanvas, resizeWebGLCanvasWithoutClearing } from './SDFGenerator.js'
 import bidiFactory from 'bidi-js'
@@ -240,7 +240,7 @@ function getTextRenderInfo(args, callback) {
       sdfTexture.dispose()
     }
 
-    Thenable.all(neededSDFs.map(glyphInfo =>
+    Promise.all(neededSDFs.map(glyphInfo =>
       generateGlyphSDF(glyphInfo, atlas, args.gpuAccelerateSDF).then(({timing}) => {
         timings.sdf[glyphInfo.atlasIndex] = timing
       })
@@ -287,7 +287,7 @@ function getTextRenderInfo(args, callback) {
   // While the typesetting request is being handled, go ahead and make sure the atlas canvas context is
   // "warmed up"; the first request will be the longest due to shader program compilation so this gets
   // a head start on that process before SDFs actually start getting processed.
-  Thenable.all([]).then(() => {
+  Promise.resolve().then(() => {
     if (!atlas.contextLost) {
       warmUpSDFCanvas(sdfTexture.image)
     }
@@ -350,7 +350,7 @@ function initContextLossHandling(atlas) {
         promises.push(generateGlyphSDF(glyph, atlas, true))
       })
     })
-    Thenable.all(promises).then(() => {
+    Promise.all(promises).then(() => {
       atlas.sdfTexture.needsUpdate = true
     })
   })
@@ -417,13 +417,12 @@ const typesetInWorker = /*#__PURE__*/defineWorkerModule({
   name: 'Typesetter',
   dependencies: [
     typesetterWorkerModule,
-    ThenableWorkerModule
   ],
-  init(typesetter, Thenable) {
+  init(typesetter) {
     return function(args) {
-      const thenable = new Thenable()
-      typesetter.typeset(args, thenable.resolve)
-      return thenable
+      return new Promise(resolve => {
+        typesetter.typeset(args, resolve)
+      })
     }
   },
   getTransferables(result) {