Merge branch 'feature/builder-5-ux'

src/app/editor/page.tsx

@@ -1,8 +1,7 @@
 "use client";
 
 import type { CSSProperties, ReactNode } from "react";
-import { useState } from "react";
-import Link from "next/link";
+import { useEffect, useState } from "react";
 import {
   DndContext,
   PointerSensor,
@@ -42,6 +41,8 @@ export default function EditorPage() {
   const replaceBlocks = useEditorStore((state) => state.replaceBlocks);
   const reorderBlocks = useEditorStore((state) => state.reorderBlocks);
   const moveBlock = useEditorStore((state) => state.moveBlock);
+  const undo = useEditorStore((state) => state.undo);
+  const redo = useEditorStore((state) => state.redo);
 
   const [editingBlockId, setEditingBlockId] = useState<string | null>(null);
   const [editingText, setEditingText] = useState("");
@@ -198,6 +199,65 @@ export default function EditorPage() {
 
   const rootBlocks = blocks.filter((block) => !block.sectionId);
 
+  // 에디터 전역에서 Undo/Redo 단축키(Cmd/Ctrl+Z, Cmd/Ctrl+Shift+Z)와
+  // ArrowUp/ArrowDown을 이용한 선택 블록 이동을 처리한다.
+  useEffect(() => {
+    const handleKeyDown = (event: KeyboardEvent) => {
+      // 방향키로 선택된 블록을 위/아래로 이동 (순서 변경이 아니라 선택만 이동)
+      if (event.key === "ArrowDown" || event.key === "ArrowUp") {
+        const { blocks: currentBlocks, selectedBlockId: currentSelectedId, selectBlock: storeSelectBlock } =
+          (useEditorStore as any).getState();
+
+        if (!currentBlocks.length) return;
+
+        const currentIndex = currentSelectedId
+          ? currentBlocks.findIndex((b: Block) => b.id === currentSelectedId)
+          : -1;
+
+        let nextIndex = currentIndex;
+
+        if (event.key === "ArrowDown") {
+          nextIndex = currentIndex < currentBlocks.length - 1 ? currentIndex + 1 : currentIndex;
+        } else if (event.key === "ArrowUp") {
+          nextIndex = currentIndex > 0 ? currentIndex - 1 : currentIndex;
+        }
+
+        if (nextIndex !== -1 && nextIndex !== currentIndex) {
+          event.preventDefault();
+          const nextId = currentBlocks[nextIndex]?.id;
+          if (nextId) {
+            storeSelectBlock(nextId);
+          }
+        }
+
+        return;
+      }
+
+      const isMac = navigator.platform.toLowerCase().includes("mac");
+      const metaKey = isMac ? event.metaKey : event.ctrlKey;
+
+      if (!metaKey) return;
+
+      // Cmd/Ctrl + Shift + Z → Redo
+      if (event.key.toLowerCase() === "z" && event.shiftKey) {
+        event.preventDefault();
+        redo();
+        return;
+      }
+
+      // Cmd/Ctrl + Z → Undo
+      if (event.key.toLowerCase() === "z") {
+        event.preventDefault();
+        undo();
+      }
+    };
+
+    window.addEventListener("keydown", handleKeyDown);
+    return () => {
+      window.removeEventListener("keydown", handleKeyDown);
+    };
+  }, [undo, redo]);
+
   const renderBlocks = (targetBlocks: Block[]) =>
     targetBlocks.map((block) => {
       const isSelected = block.id === selectedBlockId;