perf(downloads): start column moves immediately

Commit the local target order before persistence, limit FLIP measurements to columns that actually move, and remove the redundant row-wide grid preparation pass. Keep the animation-disabled path free of geometry reads and preserve serialized settings writes.
2026-08-20 09:47:57 +02:00
parent 0dfb57525a
commit e030daff3e
5 changed files with 43 additions and 19 deletions
@@ -79,6 +79,7 @@ describe("desktop shell", () => {

    expect(pointerUp.indexOf("commitDownloadColumnDrag")).toBeGreaterThanOrEqual(0);
    expect(pointerUp.indexOf("commitDownloadColumnDrag")).toBeLessThan(pointerUp.indexOf("columnDragSettleTimerRef.current = window.setTimeout"));
+    expect(pointerUp.indexOf("commitDownloadColumnDrag")).toBeLessThan(pointerUp.indexOf("persistColumnOrder"));
    expect(pointerUp).toContain("snapshot.settings.animatePackageDisclosure");
  });