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- Remove structural quality gates task and references from task-27 roadmap. - Remove structural-gates-adjacent work from scripts/positioning cleanup context, including check-main-lines adjustments. - Archive completed backlog tasks 11 and 27.7 by moving them to completed directory. - Finish task-27.5 module split by moving/anonymizing anki-integration and renderer positioning files into their dedicated directories and updating paths.
72 lines
3.4 KiB
Markdown
72 lines
3.4 KiB
Markdown
---
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id: TASK-27.5
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title: Split renderer positioning.ts into focused modules
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status: Done
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assignee:
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- frontend
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created_date: '2026-02-13 17:13'
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updated_date: '2026-02-15 23:59'
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labels:
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- refactor
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- renderer
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dependencies:
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- TASK-27.1
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references:
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- src/renderer/renderer.ts
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- src/renderer/subtitle-render.ts
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- src/renderer/positioning.ts
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- src/renderer/handlers/keyboard.ts
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- src/renderer/handlers/mouse.ts
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documentation:
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- docs/architecture.md
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parent_task_id: TASK-27
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priority: low
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---
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## Description
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<!-- SECTION:DESCRIPTION:BEGIN -->
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Split positioning.ts (513 LOC) — the only oversized file in the renderer — into focused modules. The rest of the renderer structure is already well-organized and does not need reorganization.
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## Current Renderer State (already good)
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- `renderer.ts` (241 lines) — pure composition, well-factored
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- `state.ts` (132 lines), `context.ts` (14 lines), `subtitle-render.ts` (206 lines) — reasonable sizes
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- `handlers/keyboard.ts` (238 lines), `handlers/mouse.ts` (271 lines) — focused
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- `modals/` — 4 modal implementations, each self-contained
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- Communication already uses explicit `ctx` pattern and function parameters, not globals
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## What Actually Needs Work
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`positioning.ts` mixes visible overlay positioning, invisible overlay positioning, MPV subtitle render metrics layout, and position persistence. These are distinct concerns that should be separate modules.
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<!-- SECTION:DESCRIPTION:END -->
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## Acceptance Criteria
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<!-- AC:BEGIN -->
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- [x] #1 Split positioning.ts into at least 2 focused modules (e.g., visible-positioning and invisible-positioning, or by concern: layout, persistence, metrics).
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- [x] #2 No module exceeds 300 LOC.
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- [x] #3 Existing overlay behavior (subtitle positioning, drag, invisible layer metrics) unchanged.
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- [x] #4 renderer.ts imports stay clean — use an index re-export if needed.
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- [x] #5 Manual validation: subtitle positioning, drag/select, invisible layer alignment all work correctly.
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<!-- AC:END -->
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## Implementation Notes
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<!-- SECTION:NOTES:BEGIN -->
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TASK-11 decomposition is implemented as part of this task by moving the prior monolithic mpv-metrics function into dedicated helper modules.
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Refactored renderer positioning into focused modules via a new controller barrel plus helpers: position-state, invisible-offset, invisible-layout, invisible-layout-metrics, and invisible-layout-helpers.
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Split `applyInvisibleSubtitleLayoutFromMpvMetrics` into math/layout/style helper functions and ensured no module exceeds 300 LOC by extracting two metric/style files.
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Validation done in this run: TypeScript build passes (`npm run build`). Manual behavior verification pending.
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`src/renderer/positioning.ts` now re-exports `createPositioningController` from `./positioning/controller.js`.
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Acceptance updates: checked #1 (at least two focused modules) and #2 (no module >300 LOC).
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<!-- SECTION:NOTES:END -->
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## Final Summary
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<!-- SECTION:FINAL_SUMMARY:BEGIN -->
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Completed the renderer positioning split. `src/renderer/positioning.ts` is now a thin re-export and logic is decomposed into focused modules (`controller.ts`, `position-state.ts`, `invisible-offset.ts`, `invisible-layout.ts`, `invisible-layout-helpers.ts`, `invisible-layout-metrics.ts`). Kept `renderer.ts` call-sites unchanged and preserved APIs via controller return shape. Verified by `npm run build` and user manual validation.
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<!-- SECTION:FINAL_SUMMARY:END -->
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