Adjust infinite scroll threshold for notes

[colebemis]

Summary

• trigger note list pagination when the load-more button is within 400px of view to smooth scrolling

Testing

• not run (not requested)

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https://chatgpt.com/codex/tasks/task_e_68ff8cd42e648321a12035733fd9054a

Summary by CodeRabbit

• Bug Fixes
  • Improved the timing of when additional notes are loaded while scrolling through your note list. Notes now load earlier in the scrolling process, providing a smoother continuous browsing experience.

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[coderabbitai]

Walkthrough

The useInView hook in the note list component is configured with an expanded bottom margin of 400px, triggering the load-more action earlier as elements approach the viewport rather than entering it.

Changes

Cohort / File(s)	Summary
Intersection Observer Configuration src/components/note-list.tsx	Added rootMargin: "0px 0px 400px 0px" to useInView initialization, extending the trigger zone 400px below the viewport to optimize scroll-based content loading timing.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

• Verify the 400px margin value aligns with intended UX behavior and doesn't cause premature or delayed loading
• Test scroll behavior and infinite scroll functionality to ensure no regressions in load timing
• Confirm no unintended side effects on component re-renders or performance

Poem

🐰 A margin so fine, four hundred pixels deep,
Now lists load their notes before they leap,
The viewport expands with a gentle reach,
Smoother scrolling, just within reach! ✨

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title Check	✅ Passed	The pull request title "Adjust infinite scroll threshold for notes" is directly related to the main change in the changeset. The PR modifies the useInView hook configuration by adding a rootMargin of "0px 0px 400px 0px" to adjust when the infinite scroll pagination triggers, which matches precisely what the title describes. The title is concise, specific, and clearly communicates the primary change without vague language or noise, making it easy for teammates to understand the purpose of the change when scanning commit history.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch codex/add-threshold-for-loading-more-notes

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 0b4a2af and a55b4c0.

📒 Files selected for processing (1)

• src/components/note-list.tsx (1 hunks)

🧰 Additional context used

📓 Path-based instructions (2)

**/*.{ts,tsx}

📄 CodeRabbit inference engine (CLAUDE.md)

**/*.{ts,tsx}: Adhere to Prettier style: no semicolons, trailing commas, and 100-character line length in TypeScript/React code
Follow ESLint rules for TypeScript, React, and accessibility in source code

Files:

• src/components/note-list.tsx

src/components/**/*.{ts,tsx}

📄 CodeRabbit inference engine (CLAUDE.md)

Place React components under src/components/

Files:

• src/components/note-list.tsx

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (4)

• GitHub Check: Redirect rules
• GitHub Check: Header rules
• GitHub Check: Pages changed
• GitHub Check: test-storybook

🔇 Additional comments (1)

src/components/note-list.tsx (1)

47-49: LGTM! Clean implementation of prefetch threshold.

The rootMargin configuration correctly extends the intersection detection zone by 400px below the viewport, triggering the load-more action earlier as intended. This should smooth the scrolling experience by preloading content before users reach the button.

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✅ Deploy Preview for lumen-notes ready!

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