More JavaScript dev

runtimepy/data/main.js

@@ -6,16 +6,17 @@ const blob = new Blob(
   { type: "text/javascript" },
 );
 
-// Creating a new document.worker property containing all our "text/js-worker" scripts.
-document.worker = new Worker(window.URL.createObjectURL(blob));
+// Creating a new document.worker property containing all our "text/js-worker"
+// scripts.
+let worker = new Worker(window.URL.createObjectURL(blob));
 
-document.worker.onmessage = (event) => {
-  pageLog(`Received: ${event.data}`);
+worker.onmessage = (event) => {
+  console.log(`Main thread received: ${event.data}.`);
 };
 
 // Start the worker.
 window.onload = () => {
-  document.worker.postMessage("");
+  worker.postMessage("Message from main thread.");
 };
 
 console.log("Main thread!");

runtimepy/data/worker.js

@@ -1,6 +1,6 @@
 onmessage = (event) => {
   console.log(event);
-  postMessage("Hello, world!");
+  postMessage("Worker received message!");
 };
 
 console.log("Worker thread!");

runtimepy/net/server/app/base.py

@@ -10,6 +10,7 @@
 # third-party
 from svgen.element import Element
 from vcorelib.io import IndentedFileWriter
+from vcorelib.paths import find_file
 
 # internal
 from runtimepy import PKG_NAME
@@ -48,7 +49,7 @@ def populate(self, body: Element) -> None:
         # Worker code.
         with StringIO() as stream:
             writer = IndentedFileWriter(stream, per_indent=2)
-            self._write_worker(writer)
+            self._write_found_file(writer, f"package://{PKG_NAME}/worker.js")
             children.append(
                 Element(
                     tag="script", type="text/js-worker", text=stream.getvalue()
@@ -58,19 +59,16 @@ def populate(self, body: Element) -> None:
         # Main-thread code.
         with StringIO() as stream:
             writer = IndentedFileWriter(stream, per_indent=2)
-            self._write_javascript(writer)
+            self._write_found_file(writer, f"package://{PKG_NAME}/main.js")
             children.append(Element(tag="script", text=stream.getvalue()))
 
-    def _write_worker(self, writer: IndentedFileWriter) -> None:
-        """Write the application's JavaScript worker code."""
+    def _write_found_file(
+        self, writer: IndentedFileWriter, *args, **kwargs
+    ) -> None:
+        """Write a file's contents to the file-writer's stream."""
 
-        writer.write("console.log('Worker thread!');")
-        # write data/worker.js here, use a new method in FileWriter for
-        # embedding files (by path), delete this method
-
-    def _write_javascript(self, writer: IndentedFileWriter) -> None:
-        """Write the application's JavaScript program."""
-
-        writer.write("console.log('Main thread!');")
-        # write data/main.js here, use a new method in FileWriter for
-        # embedding files (by path), delete this method
+        entry = find_file(*args, **kwargs)
+        assert entry is not None
+        with entry.open() as path_fd:
+            for line in path_fd:
+                writer.write(line)