feat: add comprehensive Ctrl-Z/Ctrl-Y undo/redo engine for MAIN SESSION and SECTION-TAB

2026-07-29 16:05:43 +07:00
parent f721b8242f
commit d4ad3bc1f7
3 changed files with 556 additions and 145 deletions
@@ -831,3 +831,8 @@
 - **Các file ảnh hưởng:** `app/static/js/app.jsx`
 - **Ghi chú/Test (nếu có):** `npm run build` — build passes.
 ---
+
+### [2026-07-29 15:39] Task: Implement full Ctrl-Z/Ctrl-Y undo/redo for MAIN SESSION and SECTION-TAB
+- **Tóm tắt thay đổi:** (1) Tạo `UndoRedoEngine` service (`app/static/js/services/undoRedoEngine.js`) — global stack hỗ trợ cross-cutting state changes (BPM, playhead, selection, AI prompt, instrument). (2) Extend `handleUndo`/`handleRedo` trong `app.jsx` để ưu tiên `UndoRedoEngine`, fallback về track-level undo stack cũ. (3) Áp dụng undo/redo cho: Delete/Create items (section, midi, clip, track), text AI Prompt (native textarea undo stack + engine integration), instrument assignment, playhead position, item drag position, selection changes, BPM/tempo changes. (4) Update undo/redo buttons disabled state + keyboard shortcut indicators. (5) Global Ctrl+Z/Y handler skip INPUT/TEXTAREA focus để text input native undo hoạt động đúng.
+- **Các file ảnh hưởng:** `app/static/js/services/undoRedoEngine.js` (NEW), `app/static/js/app.jsx`
+- **Ghi chú/Test (nếu có):** `npm run build` — build passes.