6a71577e05 feat(v3 library): A–Z fast-scroll jump rail on the Songs grid (#634)
* feat(v3 library): A–Z fast-scroll jump rail on the Songs grid

Adds a vertical letter rail (Plex/Radarr/iOS-contacts pattern) pinned to the
right edge next to the scrollbar so you can jump the library to a starting
letter — tap, drag-to-scrub with a live letter bubble, or arrow-key between
letters. The classic (v2) tree already had letter selection; this brings the
new v3 grid to parity (it was the gap behind the "alphabetical scroll
selection next to the scrollbar" idea).

It shows ONLY for the grid view + alphabetical (artist/title) sorts, and only
offers letters present in the current sort AND filter set, so a tap always
lands on a real card (absent letters are dimmed + non-interactive). The grid
is forward-only, server-paged infinite scroll with no virtualization, so a
jump pages through to the target card then scrolls to it; a token guards
overlapping jumps (drag) so the newest wins. A keyset-seek + virtualized
window is the scaling follow-up for very large libraries.

Backend: /api/library/stats gains an optional `sort` param and an additive
`sort_letters` map — songs-per-first-letter of the ACTIVE sort column (artist
or title), filter-synced — so the rail's present-letters match the grid's real
order. The legacy `letters` (distinct-artist) field is unchanged, so the
dashboard + classic tree are unaffected. `sort` is dropped for providers whose
query_stats predates it (existing kwarg-filter), so third-party library
providers keep working (rail simply falls back / hides).

Frontend: static/v3/songs.js (refreshRail / jumpToLetter / pointer-drag +
keyboard, cards tagged data-letter), static/v3/v3.css (.v3-azrail + bubble).

Tests: tests/test_library_filters.py (sort_letters artist/title, song-vs-
distinct-artist counting), tests/test_library_providers.py (sort forwarded),
tests/js/v3_az_rail.test.js (gating, data-letter, load-through, drag/keys).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QbexxfTt8q2tAn436MqGWF

* fix(v3 library): harden A–Z jump rail (review P2/P3)

Addresses the PR #634 review findings (manual + Codex):

P2 correctness
- refreshRail prefers the active-sort `sort_letters`; falls back to the
  artist-based `letters` only on an artist sort, and hides the rail on a
  title sort when a legacy provider returns none (was mislabeling letters).
- reload() bumps `_jumpToken` so an in-flight letter jump can't scroll a
  grid that's being rebuilt from page 0.
- songBucket no longer trims, matching the server SQL + grid ORDER BY raw
  first-char bucketing (a leading-space title now buckets under '#' on both
  sides).

P3 polish
- Paging guard is total-derived (ceil(total/PAGE_SIZE)+2) instead of a
  magic 4000, keeping large libraries reachable while still bounded.
- Roving tabindex: only the first present letter is tabbable; arrow keys
  move it. Removes up to 27 page tab stops.
- `sort_letters` is computed only when the caller opts in
  (want_sort_letters / route `sort_letters=1`); the dashboard + v2 tree
  skip the extra GROUP BY. Added sort + want_sort_letters to the optional
  provider-kwargs so non-introspectable legacy providers drop them.
- _railToken supersedes stale refreshRail responses; hide the rail when no
  letters are present instead of rendering disabled buttons.

Tests updated accordingly (v3_az_rail.test.js, test_library_filters.py).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Co-authored-by: byrongamatos <xasiklas@gmail.com>
2026-06-29 08:49:01 +02:00
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fee[dB]ack

Plugins

Plugin Description Install
Create from Tab Search Ultimate Guitar for GP tabs and convert to playable songs git clone ...feedBack-plugin-ug.git ultimate_guitar
Import Tab Drag and drop Guitar Pro files to create songs git clone ...feedBack-plugin-tabimport.git tab_import
Practice Journal Auto-track practice time, speed, loops. Dashboard with charts git clone ...feedBack-plugin-practice.git practice_journal
Setlist Builder Create ordered playlists with sequential playback git clone ...feedBack-plugin-setlist.git setlist
Metronome Audible click and visual beat flash synced to song tempo git clone ...feedBack-plugin-metronome.git metronome
Tone Player View amp/pedal/cab signal chains with gear artwork git clone ...feedBack-plugin-tones.git tones
Fretboard View Live fretboard overlay showing active notes in real-time git clone ...feedBack-plugin-fretboard.git fretboard
Tab View Scrolling guitar tablature notation via alphaTab git clone ...feedBack-plugin-tabview.git tab_view
MIDI Amp Control Auto-switch amp/modeler presets via MIDI on tone changes git clone ...feedBack-plugin-midi.git midi_amp
Section Map Color-coded song structure minimap with clickable navigation git clone ...feedBack-plugin-sectionmap.git section_map
Arrangement Editor DAW-like visual editor for creating and editing song note charts git clone ...feedBack-plugin-editor.git editor
MIDI Capo MIDI capo control for real-time transposition git clone ...slopsmith-plugin-midi-capo.git midi_capo
Note Detection Real-time pitch detection and scoring against highway notes git clone ...feedBack-plugin-notedetect.git note_detect
Find More Search for more songs by the same artist git clone ...slopsmith-plugin-find-more.git find_more
Piano Highway Scrolling piano/keyboard view for Keys arrangements with MIDI input git clone ...feedBack-plugin-piano.git piano
Studio Collaborative band recording and multi-track mixing git clone ...feedBack-plugin-studio.git studio
Drum Highway Lane-based drum highway with MIDI drum pad input and built-in sounds git clone ...feedBack-plugin-drums.git drums
Invert Highway Flip the highway note direction git clone ...slopsmith-plugin-invert-highway.git invert_highway
Jumping Tab Yousician-style 2D horizontal tab with trajectory arcs and hopping ball git clone ...slopsmith-plugin-jumpingtab.git jumpingtab
Step Mode Step-by-step practice mode — highway freezes at each note until played (via Note Detection) or Space git clone ...feedBack-plugin-stepmode.git step_mode
Lyrics Sync Generate synced LRC lyrics from text + vocals stem via Whisper alignment git clone ...feedBack-plugin-lyrics-sync.git lyrics_sync
Lyrics Karaoke Per-syllable karaoke pitch ribbon for sloppak songs (Whisper alignment + librosa pYIN) git clone ...feedBack-plugin-lyrics-karaoke.git lyrics_karaoke
NAM Tone Engine In-browser amp modeling with NAM WASM, cabinet IRs, tone auto-switching git clone ...feedBack-plugin-nam-tone.git nam_tone
Guitar Theory Lab Explore scales, chords, intervals, tunings, and voicings on a fully interactive fretboard git clone ...slopsmith-plugin-guitar-theory.git guitar-theory-lab
Themes Offers several basic recolorings of the interface git clone ...slopsmith-plugin-themes.git themes
Update Manager Installs, updates, and uninstalls other plugins and the feedBack core itself git clone ...slopsmith-update-manager.git update_manager
Simplify Chords Changes complex chords on the note highway to simpler ones. Inspired by Ultimate Guitar's Simplify button. git clone ...slopsmith-plugin-simplify-chords.git simplify-chords
Key Bindings Highway key bindings for keyboard and TV remote git clone ...slopsmith-plugin-key-bindings.git key_bindings
Virtuoso Practice studio for guitar & bass — scale, technique, and rhythm drills, timed workouts, and jam backing that teach skills you take off the screen. git clone ...feedBack-plugin-virtuoso.git virtuoso
Audio Preview Quick audio previews from library cards with configurable start time, volume, and duration git clone ...slopsmith-plugin-audio-preview.git audio_preview
Song Mastery Auto-adjusts difficulty based on your rolling note accuracy and saves the slider position per song git clone ...slopsmith-plugin-song-mastery.git song_mastery
Mobile Note Highway Touch-optimized player with collapsible controls, highway gestures, and device-adaptive layouts for phones and tablets git clone ...slopsmith-plugin-mobile-note-highway.git mobile_note_highway

Install any plugin by cloning it into your plugins/ directory and restarting:

cd plugins
git clone https://github.com/got-feedback/feedBack-plugin-ug.git ultimate_guitar
docker compose restart
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