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Viewer UX: splash screen, dashboard labels, and nav cleanup#809

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thinkingfish merged 7 commits intoiopsystems:mainfrom
thinkingfish:splash-screen-loading
Apr 19, 2026
Merged

Viewer UX: splash screen, dashboard labels, and nav cleanup#809
thinkingfish merged 7 commits intoiopsystems:mainfrom
thinkingfish:splash-screen-loading

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@thinkingfish thinkingfish commented Apr 18, 2026

Summary

  • Add splash screen with download progress bar for WASM viewer demo loading
  • Remove file upload from WASM viewer (demos loaded via URL params)
  • Hide Load Parquet / Load Report buttons from WASM viewer nav bar
  • Add Rate/Latency suffixes to per-operation syscall chart titles
  • Add (per-CPU) label to softirq heatmap chart titles
  • Preserve grid layout for empty syscall latency charts (no-collapse)
  • Rename .service-notes.section-notes CSS class for reuse

Test plan

  • Load WASM viewer — verify splash screen with progress bar during demo download
  • Verify no upload buttons in WASM viewer nav bar
  • Load server viewer — verify upload buttons still present
  • Check syscall section: charts titled "Read Rate" / "Read Latency" etc.
  • Check syscall section: empty latency charts hold grid space
  • Check softirq section: heatmap charts labeled "(per-CPU)"
  • Verify service extension unavailable KPIs note still renders

🤖 Generated with Claude Code

Shows a "Loading <filename>..." splash with a progress bar during demo
parquet downloads in the WASM viewer. Removes file upload from WASM
viewer landing page (demos are loaded via URL params instead). Adds
null-safe error formatting in server viewer catch blocks.
Gate "Load Parquet" and "Load Report" buttons on onUploadParquet prop
so they only appear in the server-backed viewer.
Per-operation charts now read e.g. "Read Rate" / "Read Latency" instead
of ambiguously repeating the operation name for both charts.
Add no_collapse metadata to the syscall group so histogram charts with
no data hold their grid space instead of collapsing and shifting the
layout of subsequent operation charts.
Disambiguate aggregate vs per-CPU charts by labeling heatmap variants
as "Rate (per-CPU)" and "CPU % (per-CPU)".
Generalize the notes component class name so it can be reused across
sections beyond just service extensions.
Comment thread crates/dashboard/src/dashboard/syscall.rs Fixed
Comment thread crates/dashboard/src/dashboard/syscall.rs Fixed
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
@thinkingfish thinkingfish marked this pull request as ready for review April 19, 2026 02:01
@thinkingfish thinkingfish merged commit e76ce24 into iopsystems:main Apr 19, 2026
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@thinkingfish thinkingfish deleted the splash-screen-loading branch April 19, 2026 02:02
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2 participants