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web_ui: document distinct-value stepping

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Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01U4Rj3s7K2qzrLNgJqqPhno
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Krzysztof Rudnicki 2026-08-15 14:59:41 +02:00
parent 133c210b2e
commit 086791f4f9
1 changed files with 8 additions and 2 deletions
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@ -77,14 +77,20 @@ arrow keys is an ARIA role that lies — so the shared version adds:
| Key | Effect |
| --- | --- |
| `←` `↓` / `→` `↑` | Step one sample through the distribution |
| `PageDown` / `PageUp` | Step ten samples |
| `←` `↓` / `→` `↑` | Step to the next **distinct** value |
| `PageDown` / `PageUp` | Step ten distinct values |
| `Home` / `End` | Jump to the distribution's bounds |
Pass `label` **and** `format` to get the built-in head (name + value readout);
omit them for a bare track when the caller draws its own chrome, as
dufs-cloud's `SizeRange`/`DurationRange` wrappers do.
Stepping targets the next *distinct* value, not the next index. Real
distributions are lumpy — ~1500 of awesome-mcp-explorer's ~2981 star counts are
`0` — and an index step inside a run of equal values moves the index while
leaving the value, the thumb and the filter untouched. That reads as a dead
arrow key, and jsdom's evenly-spaced fixtures do not catch it.
## Development
```bash