에디터 UX: Undo/Redo 및 키보드 선택 이동 추가

src/features/editor/state/editorStore.ts

@@ -51,6 +51,8 @@ export interface Block {
 export interface EditorState {
   blocks: Block[];
   selectedBlockId: string | null;
+  history: Block[][];
+  future: Block[][];
   addTextBlock: () => void;
   addButtonBlock: () => void;
   addImageBlock: () => void;
@@ -63,6 +65,8 @@ export interface EditorState {
   replaceBlocks: (blocks: Block[]) => void;
   reorderBlocks: (activeId: string, overId: string) => void;
   moveBlock: (id: string, sectionId: string | null, columnId: string | null) => void;
+  undo: () => void;
+  redo: () => void;
 }
 
 // 간단한 ID 생성기 (추후 uuid 라이브러리로 교체 가능)
@@ -74,6 +78,8 @@ const createId = () => `blk_${Date.now()}_${idCounter++}`;
 const createEditorState = (set: any, get: any): EditorState => ({
     blocks: [],
     selectedBlockId: null,
+    history: [],
+    future: [],
 
     // 텍스트 블록 추가: 기본 텍스트와 함께 생성 후 선택 상태로 만든다
     addTextBlock: () => {
@@ -112,6 +118,8 @@ const createEditorState = (set: any, get: any): EditorState => ({
       set((state: EditorState) => ({
         blocks: [...state.blocks, newBlock],
         selectedBlockId: id,
+        history: [...state.history, blocks],
+        future: [],
       }));
     },
 
@@ -478,6 +486,34 @@ const createEditorState = (set: any, get: any): EditorState => ({
         ),
       }));
     },
+    undo: () => {
+      const { history, blocks } = get();
+      if (history.length === 0) return;
+
+      const previous = history[history.length - 1];
+      const nextHistory = history.slice(0, -1);
+
+      set((state: EditorState) => ({
+        blocks: previous,
+        selectedBlockId: previous.length > 0 ? previous[previous.length - 1].id : null,
+        history: nextHistory,
+        future: [...state.future, blocks],
+      }));
+    },
+    redo: () => {
+      const { future, blocks } = get();
+      if (future.length === 0) return;
+
+      const next = future[future.length - 1];
+      const nextFuture = future.slice(0, -1);
+
+      set((state: EditorState) => ({
+        blocks: next,
+        selectedBlockId: next.length > 0 ? next[next.length - 1].id : null,
+        history: [...state.history, blocks],
+        future: nextFuture,
+      }));
+    },
   });
 
 // React 컴포넌트에서 사용하는 전역 훅 스토어