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Phase 27: strengthen undo transactions and improve editor workflow

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Johannes Findeisen 2026-10-27 16:49:30 +01:00
commit c4daef7c42
21 changed files with 460 additions and 27 deletions
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docs/ROADMAP.md
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@ -720,10 +720,37 @@ Make common editing actions quick, discoverable, and safe to reverse.
- Keep presentation logic out of the core C engine.
### Acceptance criteria
- Documented editing operations have predictable undo/redo behavior.
- Undo and redo restore the project model and relevant engine state consistently.
- Failed operations do not leave partial changes behind.
- Common tasks can be completed using documented keyboard and mouse interactions.
- [x] Documented editing operations have predictable undo/redo behavior.
- [x] Undo and redo restore the project model and relevant engine state consistently.
- [x] Failed operations do not leave partial changes behind.
- [x] Common tasks can be completed using documented keyboard and mouse interactions.
Implemented: operation-by-operation audit in EDITING.md; reserved history storage
before GUI command mutation/candidate publication, followed by allocation-free
snapshot capture; recording start creates no empty history entry and each
completed take is one undoable reference edit; unavailable main-menu history
steps disabled; surviving editor selections and open piano-roll context retained
on undo; piano-roll history shortcuts/context menu and pointer-targeted graph
context menus; input focus guards and synchronous busy feedback. Existing C
graph/batch note commands and snapshot history remain the model boundary; FLTK
presentation stays in C++. No project format change (v10 retained).
Validation: warning-enabled core/GUI builds and full tests; interposed allocation
failure for each history reservation and capture with all allocations disabled;
GUI history-reservation failure retains document, engine submission count and
redo; completed-take undo grouping retains WAV; selection/context-target tests;
existing grouped gestures/batches, candidate/backend rollback and save/reopen;
workflow/software JACK GUI integration, reliability/callback guards, Clang static
analysis, core/GUI ASan+UBSan, optional-dependency-free build, installation and
package relocation. GUI sanitizer runs retain the existing fontconfig-only leak
suppression. EDITING.md supplies a reproducible native manual procedure for
popup dismissal, text focus, large synchronous operations and recorded takes.
Native manual popup/focus/large-file usability checks, broad accessibility and
physical-device listening/endurance remain pending. History remains bounded and
session-only; selection/layout history, arbitrary command grouping, background
loading and destructive source-media editing are not supplied. Preparation
failure can stop/reset transport while retaining the old document/history.
## Phase 28 — Project Format, Compatibility, and Portability