TUI pager: width-based sliding window that keeps clear of the n/N index - #231
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ChangesPager rendering
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: 🔵 Low · up to The pager now uses a width-limited sliding dot window, but the new behavior lacks diagnostics and its overlap test may miss overwritten dots. The PR is mergeable with explicit owner follow-up to address these bounded observability and test-confidence risks. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Greptile SummaryThe pager now derives a fixed-block dot window from the available terminal width while reserving symmetric space for the page index.
Confidence Score: 5/5The PR appears safe to merge. No blocking failure remains.
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| Filename | Overview |
|---|---|
| crates/codemark-tui/src/component/mod.rs | Implements width-aware fixed-block pager rendering and tests the previously reported overlap, alignment, and progression cases; the prior findings are resolved. |
Reviews (7): Last reviewed commit: "Code review comments" | Re-trigger Greptile
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Actionable comments posted: 1
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Inline comments:
In `@crates/codemark-tui/src/component/mod.rs`:
- Around line 202-232: In the pager rendering logic around the visible-window
calculation and dot loop, add tracing::debug! instrumentation using target
"codemark::ui". Log the relevant pager state and calculated window values
without introducing a new tracing subsystem target.
Apply the same fix in `@crates/codemark-tui/src/component/mod.rs` around lines 202
- 232.
Apply the same fix in `@crates/codemark-tui/src/component/mod.rs` around lines 202
- 232: The formatter and linter confirmation also applies here.
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- Don't force a lone dot when the row is too narrow; the right-aligned index would overwrite it. Render only the index instead. - Anchor the final partial block at total - visible so it stays full width and column-aligned, avoiding a sideways window shift when paging into the tail. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Keep the short final block (dot resets to the left edge, no backward jump) but center a fixed full-width slot so every block's dots stay in the same columns. Replaces the total-visible anchor, which overlapped the preceding block and jumped the dot backward on 89->90. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Inline comments:
In `@crates/codemark-tui/src/component/mod.rs`:
- Around line 425-427: Update the overlap assertion near last_dot_col and
index_col to validate that exactly 10 dots remain visible, and compare their
terminal-cell positions rather than UTF-8 byte offsets; retain the existing row
diagnostic while ensuring overwritten dots cause the test to fail.
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Long bookmark collections made the pager's dot row span the full width, collide with the right-aligned
n / Nindex, and look lopsided (longer on the left than the right). This reworksPager::renderto size a dot window from the available width — reserving space for the widest possibleN / Nindex symmetrically on both sides so the dots stay centered and never overlap the index. The window pages in fixed blocks so the current dot moves freely from the left edge to the right edge before the window slides, instead of being pinned to the middle and sliding on every move. Addedpager_testscovering the width-based window size, all-dots-fit case, free selection movement within a block, and the no-overlap-with-index guarantee.Summary by CodeRabbit
Bug Fixes
Tests