Presentation progress bar

[gjmooney]

Description

This adds a progress bar for Specta presentations. The fill animation duration is driven by the current segment’s transition time. Segment orbs are clickable to jump to a segment and are keyboard-accessible.

progress-bar-gh.mp4

Checklist

• PR has a descriptive title and content.
• PR description contains references to any issues the PR resolves, e.g. Resolves #XXX.
• PR has one of the labels: documentation, bug, enhancement, feature, maintenance
• Checks are passing.
  Failing lint checks can be resolved with:
  • pre-commit run --all-files
  • jlpm run lint
• If you wish to be cited for your contribution, CITATION.cff contains an author entry for yourself

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📚 Documentation preview: https://jupytergis--1136.org.readthedocs.build/en/1136/
💡 JupyterLite preview: https://jupytergis--1136.org.readthedocs.build/en/1136/lite
💡 Specta preview: https://jupytergis--1136.org.readthedocs.build/en/1136/lite/specta

[github-actions]

👈 Launch a Binder on branch gjmooney/jupytergis/presentation-progress-bar

[github-actions]

Integration tests report: appsharing.space

[mfisher87]

Wow, that looks amazing! Nice work :)

[martinRenou]

@gjmooney it seems the PR pulled some conflicts with the other PR

[martinRenou]

🚀