推进 OPFS G-code 程序路径 helper

wasm-port/runtime/ui/ini-panel/app.js

@@ -8,6 +8,7 @@ import {
   saveTextFile,
 } from "../../opfs/file-service.js";
 import {
+  gcodeFilenameFromProgramPath,
   loadGcodeProgram,
   loadMachineTextFiles,
   machineFilePaths,
@@ -311,23 +312,24 @@ function syncEditorToWasmFs() {
   requireIniSdk().writeTextFile(WASM_FILE, editor.value);
 }
 
-function gcodeFilenameFromSnapshotPath(path) {
-  const prefix = "linuxcnc/gcode/";
-  if (typeof path !== "string" || !path.startsWith(prefix)) {
-    return GCODE_FILENAME;
-  }
-  const filename = path.slice(prefix.length);
-  return filename || GCODE_FILENAME;
-}
-
 async function loadSelectedGcodeProgram() {
   const opfsPath = restoredSessionSnapshot?.payload?.files?.gcode;
-  const filename = gcodeFilenameFromSnapshotPath(opfsPath);
-  const hasSnapshotGcode = typeof opfsPath === "string" && opfsPath.startsWith("linuxcnc/gcode/");
+  let filename = GCODE_FILENAME;
+  let selectedOpfsPath = `linuxcnc/gcode/${GCODE_FILENAME}`;
+  let source = "default";
+  if (typeof opfsPath === "string") {
+    try {
+      filename = gcodeFilenameFromProgramPath(opfsPath);
+      selectedOpfsPath = opfsPath;
+      source = "snapshot";
+    } catch {
+      filename = GCODE_FILENAME;
+    }
+  }
   return {
     filename,
-    opfsPath: opfsPath ?? `linuxcnc/gcode/${filename}`,
-    source: hasSnapshotGcode ? "snapshot" : "default",
+    opfsPath: selectedOpfsPath,
+    source,
     wasmPath: GCODE_WASM_FILE,
     text: await loadGcodeProgram(filename),
   };