Don't show buttons for ongoing scans.

src/openflexure_microscope_server/things/smart_scan.py

@@ -17,6 +17,7 @@ from subprocess import SubprocessError
 from fastapi import HTTPException
 from fastapi.responses import FileResponse
 import numpy as np
+from pydantic import BaseModel
 
 import labthings_fastapi as lt
 
@@ -39,6 +40,16 @@ CSMDep = lt.deps.direct_thing_client_dependency(
 AutofocusDep = lt.deps.direct_thing_client_dependency(AutofocusThing, "/autofocus/")
 
 
+class ScanListData(BaseModel):
+    """The data to be sent to the Scan List tab."""
+
+    scans: list[scan_directories.ScanInfo]
+    """The list of scans as ScanInfo objects"""
+
+    ongoing: Optional[str]
+    """The name of the ongoing scan or None"""
+
+
 class JPEGBlob(lt.blob.Blob):
     """A class representing a JPEG image as a LabThings FastAPI Blob."""
 
@@ -557,7 +568,7 @@ class SmartScanThing(lt.Thing):
     """Whether to run a final stitch at the end of a successful scan."""
 
     @lt.thing_property
-    def scans(self) -> list[scan_directories.ScanInfo]:
+    def scans(self) -> ScanListData:
         """All the available scans.
 
         Each scan has a name (which can be used to access it), along with
@@ -566,7 +577,10 @@ class SmartScanThing(lt.Thing):
         uses a regular expression, and changes to the naming scheme will
         break it.
         """
-        return self._scan_dir_manager.all_scans_info()
+        return ScanListData(
+            scans=self._scan_dir_manager.all_scans_info(),
+            ongoing=None if self._ongoing_scan is None else self._ongoing_scan.name,
+        )
 
     @lt.fastapi_endpoint(
         "get",