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Code Issues 52 Pull Requests 4 Actions Packages Projects Releases 12 Wiki Activity

docs(14-01): complete CSS containment & GPU scroll promotion plan

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- SUMMARY.md with 2 tasks, 7 files, 3 min duration
- STATE.md updated with plan position, metrics, decisions
- ROADMAP.md updated with plan progress (2/4)
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yonlu
2026-03-14 13:48:36 -04:00
parent f9cb346751
commit ef18f59a9a
3 changed files with 118 additions and 11 deletions
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.planning/STATE.md
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@@ -23,10 +23,10 @@ See: .planning/PROJECT.md (updated 2026-03-08)
## Current Position
Phase: 14 — Performance Optimization
Plan: 1 of 4 in Phase (Plan 02 complete)
Status: Plan 14-02 complete — view caching navigation system
Progress: ████████████████░░░░ Phase 14 in progress (1/4 plans)
Last activity: 2026-03-14 — Completed 14-02 view caching navigation
Plan: 2 of 4 in Phase (Plans 01, 02 complete)
Status: Plan 14-01 complete — CSS containment & GPU scroll promotion
Progress: ████████████████░░░░ Phase 14 in progress (2/4 plans)
Last activity: 2026-03-14 — Completed 14-01 CSS containment & GPU scroll promotion
### Phase Overview
@@ -37,7 +37,7 @@ Last activity: 2026-03-14 — Completed 14-02 view caching navigation
| 11. Per-Library Scan Pipeline | Complete (3/3 plans) ✅ |
| 12. Library CRUD & Data Integrity | In progress (1/2 plans) |
| 13. Library Views & Phantom Tracks | Not started |
| 14. Performance Optimization | In progress (1/4 plans) |
| 14. Performance Optimization | In progress (2/4 plans) |
## Performance Metrics
@@ -58,6 +58,7 @@ Last activity: 2026-03-14 — Completed 14-02 view caching navigation
| Phase 11-02 P02 | 4 min | 2 tasks | 2 files |
| Phase 12-01 P01 | 6 min | 2 tasks | 6 files |
| Phase 14-02 P02 | 1 min | 1 task | 1 file |
| Phase 14-01 P01 | 3 min | 2 tasks | 7 files |
## Accumulated Context
@@ -128,6 +129,9 @@ Decisions from v1.0 are archived in PROJECT.md Key Decisions table. Key patterns
| Primary views cached, detail views ephemeral | Detail views depend on entity IDs that change; caching would show stale content |
| Inline style.display toggle over CSS class | Simpler, no specificity issues, empty string restores natural display value |
| viewCache bounded at 6 entries | One per primary view — negligible memory since data is already in store caches |
| contain: strict only on .main-panel | Has explicit dimensions (flex: 1, overflow: hidden); elsewhere use layout style to not break flex |
| will-change: transform only on scroll containers | Not on :host — avoids wasting GPU memory on non-scrolling elements |
| content-visibility: auto on album cards with contain-intrinsic-size | Prevents layout shift during scroll while skipping off-screen rendering |
### Warnings (carry forward)
@@ -155,9 +159,9 @@ Decisions from v1.0 are archived in PROJECT.md Key Decisions table. Key patterns
### Last Session
**Date:** 2026-03-14
**What happened:** Executed Phase 14, Plan 02 — replaced innerHTML navigation with view caching system. Primary views (tracks, albums, artists, genres, playlists, settings) are now created once and kept in DOM with display toggle instead of destruction/recreation.
**Where we stopped:** Completed 14-02-PLAN.md — Plan 02 of Phase 14 complete
**Next action:** Execute remaining Phase 14 plans (14-01 CSS containment, 14-03 store optimizations, 14-04 rendering optimizations)
**What happened:** Executed Phase 14, Plan 01 — added CSS containment to app shell layout boundaries and GPU-composited scrolling to all 6 scroll-heavy components with content-visibility on album cards.
**Where we stopped:** Completed 14-01-PLAN.md — Plan 01 of Phase 14 complete (Plans 01, 02 done)
**Next action:** Execute remaining Phase 14 plans (14-03 store optimizations, 14-04 rendering optimizations)
---
*State initialized: 2026-02-27*
@@ -170,4 +174,4 @@ Decisions from v1.0 are archived in PROJECT.md Key Decisions table. Key patterns
| 18 | add multi-column metadata display to playlist-details | 2026-03-08 | ce23177 | [18-add-multi-column-metadata-display-to-pla](./quick/18-add-multi-column-metadata-display-to-pla/) |
Last activity: 2026-03-08 - Completed quick task 18: add multi-column metadata display to playlist-details
*Last updated: 2026-03-14 — Completed 14-02-PLAN.md (Phase 14 Plan 02 complete)*
*Last updated: 2026-03-14 — Completed 14-01-PLAN.md (Phase 14 Plan 01 complete)*