add turbowarp packager

package.json

@@ -87,6 +87,7 @@
     "three": "^0.182.0",
     "three-bvh-csg": "^0.0.17",
     "three-mesh-bvh": "^0.9.8",
+    "turbowarp-packager-browser": "3.11.1",
     "ts-flp": "^1.0.3",
     "verovio": "^6.0.1",
     "vexflow": "^5.0.0",

src/handlers/index.ts

@@ -34,7 +34,7 @@ import cgbiToPngHandler from "./cgbi-to-png.ts";
 import batToExeHandler from "./batToExe.ts";
 import textEncodingHandler from "./textEncoding.ts";
 import jsonToCHandler from "./jsonToC.ts";
-import sb3ToHtmlHandler from "./sb3tohtml.ts";
+import turbowarpHandler from "./turbowarp.ts";
 import libopenmptHandler from "./libopenmpt.ts";
 import { midiCodecHandler, midiSynthHandler } from "./midi.ts";
 import lzhHandler from "./lzh.ts";
@@ -101,7 +101,7 @@ try { handlers.push(new flptojsonHandler()) } catch (_) { };
 try { handlers.push(new floHandler()) } catch (_) { };
 try { handlers.push(new cgbiToPngHandler()) } catch (_) { };
 try { handlers.push(new batToExeHandler()) } catch (_) { };
-try { handlers.push(new sb3ToHtmlHandler()) } catch (_) { };
+try { handlers.push(new turbowarpHandler()) } catch (_) { };
 try { handlers.push(new textEncodingHandler()) } catch (_) { };
 try { handlers.push(new jsonToCHandler()) } catch (_) { };
 try { handlers.push(new libopenmptHandler()) } catch (_) { };

src/handlers/turbowarp.ts

@@ -0,0 +1,61 @@
+// file: turbowarp.ts
+
+import type { FileData, FileFormat, FormatHandler } from "../FormatHandler.ts";
+import CommonFormats from "src/CommonFormats.ts";
+import { Packager, largeAssets, downloadProject } from "turbowarp-packager-browser";
+
+// patching some assets
+largeAssets.scaffolding.src = "/convert/js/turbowarp-scaffolding/scaffolding-full.js";
+largeAssets["scaffolding-min"].src = "/convert/js/turbowarp-scaffolding/scaffolding-min.js";
+largeAssets.addons.src = "/convert/js/turbowarp-scaffolding/addons.js";
+
+class turbowarpHandler implements FormatHandler {
+
+  public name: string = "turbowarp";
+  public supportedFormats: FileFormat[] = [
+    {
+      name: "Scratch 3 Project",
+      format: "sb3",
+      extension: "sb3",
+      mime: "application/x.scratch.sb3",
+      from: true,
+      to: false,
+      internal: "sb3",
+      category: "archive",
+      lossless: true,
+    },
+    CommonFormats.HTML.builder("html")
+      .allowTo()
+  ];
+  public ready: boolean = false;
+
+  async init () {
+    this.ready = true;
+  }
+
+  async doConvert (
+    inputFiles: FileData[],
+    inputFormat: FileFormat,
+    outputFormat: FileFormat
+  ): Promise<FileData[]> {
+    const outputFiles: FileData[] = [];
+    for (const inputFile of inputFiles) {
+      const project = await downloadProject(inputFile.bytes);
+
+      const packager = new Packager();
+      packager.project = project;
+      packager.options.target = "html";
+
+      const bytes = (await packager.package()).data;
+
+      outputFiles.push({ 
+        name: inputFile.name.replace(/\.sb3$/, ".html"), 
+        bytes 
+      });
+    }
+    return outputFiles;
+  }
+
+}
+
+export default turbowarpHandler;

vite.config.js

@@ -66,6 +66,10 @@ export default defineConfig({
           src: "src/handlers/tarCompressed/liblzma.wasm",
           dest: "wasm"
         },
+        {
+          src: "node_modules/turbowarp-packager-browser/dist/scaffolding/*",
+          dest: "js/turbowarp-scaffolding"
+        },
       ]
     }),
     tsconfigPaths()