From 06cf51e5dd14e118fa8dbb8c666d78ace61cbf9b Mon Sep 17 00:00:00 2001
From: joonhoekim <26rote@gmail.com>
Date: Tue, 28 Oct 2025 14:26:44 +0900
Subject: (김준회) fix: 공통컴포넌트: 데이터 그리드: 중첩헤더 있는 경우의 width
 계산 및 스타일 적용문제 해결
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---
 components/data-table/data-table-detail.tsx     | 28 +++++++++++++++++++++++--
 components/data-table/data-table.tsx            | 17 ++++++++++++---
 components/data-table/expandable-data-table.tsx | 15 +++++++++----
 components/data-table/infinite-data-table.tsx   | 15 +++++++++----
 4 files changed, 62 insertions(+), 13 deletions(-)

(limited to 'components')

diff --git a/components/data-table/data-table-detail.tsx b/components/data-table/data-table-detail.tsx
index f3f09fe2..016b9f42 100644
--- a/components/data-table/data-table-detail.tsx
+++ b/components/data-table/data-table-detail.tsx
@@ -60,6 +60,19 @@ export function DataTableDetail<TData>({
 
   useAutoSizeColumns(table, autoSizeColumns)
 
+  // nested header 감지: columns 속성을 가진 헤더가 있는지 확인
+  const hasNestedHeader = React.useMemo(() => {
+    return table.getHeaderGroups().some(headerGroup =>
+      headerGroup.headers.some(header => 'columns' in header.column.columnDef)
+    )
+  }, [table])
+
+  // 🎯 테이블 총 너비 계산 (nested header가 있을 때만 사용)
+  const getTableWidth = React.useCallback(() => {
+    const totalSize = table.getCenterTotalSize() + table.getLeftTotalSize() + table.getRightTotalSize()
+    return Math.max(totalSize, 800) // 최소 800px 보장
+  }, [table])
+
   // ✅ compactStyles를 useMemo로 메모이제이션
   const compactStyles = React.useMemo(() => 
     compact ? COMPACT_STYLES : NORMAL_STYLES, 
@@ -70,7 +83,12 @@ export function DataTableDetail<TData>({
     <div className={cn("w-full space-y-2.5 overflow-auto", className)} {...props}>
       {children}
       <div className="max-w-[100vw] overflow-auto"  style={{ maxHeight: maxHeight || '35rem' }} >
-        <Table className="[&>thead]:sticky [&>thead]:top-0 [&>thead]:z-10 table-fixed">
+        <Table 
+          className={cn(
+            "[&>thead]:sticky [&>thead]:top-0 [&>thead]:z-10",
+            !hasNestedHeader && "table-fixed"
+          )}
+          style={{ minWidth: hasNestedHeader ? getTableWidth() : undefined }}>
           {/* 테이블 헤더 */}
           <TableHeader>
             {table.getHeaderGroups().map((headerGroup) => (
@@ -93,7 +111,11 @@ export function DataTableDetail<TData>({
                         }),
                         // 부모 그룹 헤더는 colSpan으로 너비가 결정되므로 width 설정하지 않음
                         // 자식 헤더만 개별 width 설정
-                        ...(!('columns' in header.column.columnDef) && { width: header.getSize() }),
+                        ...(!('columns' in header.column.columnDef) && { 
+                          width: header.getSize(),
+                          minWidth: header.getSize(),
+                          maxWidth: header.column.columnDef.maxSize,
+                        }),
                       }}
                     >
                       <div style={{ position: "relative" }}>
@@ -190,6 +212,8 @@ export function DataTableDetail<TData>({
                           style={{
                             ...getCommonPinningStylesWithBorder({ column: cell.column }),
                             width: cell.column.getSize(),
+                            minWidth: cell.column.getSize(),
+                            maxWidth: cell.column.columnDef.maxSize,
                           }}
                         >
                           {flexRender(
diff --git a/components/data-table/data-table.tsx b/components/data-table/data-table.tsx
index 44cbd47b..f6d3af73 100644
--- a/components/data-table/data-table.tsx
+++ b/components/data-table/data-table.tsx
@@ -78,6 +78,12 @@ export function DataTable<TData>({
     return children;
   }, [children]);
 
+  // 🎯 테이블 총 너비 계산 (nested header가 있을 때만 사용)
+  const getTableWidth = React.useCallback(() => {
+    const totalSize = table.getCenterTotalSize() + table.getLeftTotalSize() + table.getRightTotalSize()
+    return Math.max(totalSize, 800) // 최소 800px 보장
+  }, [table])
+
   return (
     <div className={cn("w-full space-y-2.5 overflow-auto", className)} {...props}>
       {stableChildren}
@@ -86,8 +92,9 @@ export function DataTable<TData>({
           className={cn(
             "[&>thead]:sticky [&>thead]:top-0 [&>thead]:z-10",
             !hasNestedHeader && "table-fixed" // nested header가 없으면 table-fixed 적용
-          )}>
-          {/* nested header가 있으면 table-fixed 제거, 없으면 적용 */}
+          )}
+          style={{ minWidth: hasNestedHeader ? getTableWidth() : undefined }}>
+          {/* nested header가 있으면 table-fixed 제거하고 minWidth로 너비 강제, 없으면 table-fixed 적용 */}
           {/* 테이블 헤더 */}
           <TableHeader>
             {table.getHeaderGroups().map((headerGroup) => (
@@ -116,7 +123,9 @@ export function DataTable<TData>({
                         // 부모 그룹 헤더는 colSpan으로 너비가 결정되므로 width 설정하지 않음
                         // 자식 헤더만 개별 width 설정
                         ...(!('columns' in header.column.columnDef) && {
-                          width: header.getSize()
+                          width: header.getSize(),
+                          minWidth: header.getSize(),
+                          maxWidth: header.column.columnDef.maxSize,
                         }),
                       }}
                     >
@@ -214,6 +223,8 @@ export function DataTable<TData>({
                           style={{
                             ...getCommonPinningStylesWithBorder({ column: cell.column }),
                             width: cell.column.getSize(),
+                            minWidth: cell.column.getSize(),
+                            maxWidth: cell.column.columnDef.maxSize,
                           }}
                         >
                           {flexRender(
diff --git a/components/data-table/expandable-data-table.tsx b/components/data-table/expandable-data-table.tsx
index 165ebd34..bc0833a6 100644
--- a/components/data-table/expandable-data-table.tsx
+++ b/components/data-table/expandable-data-table.tsx
@@ -510,8 +510,9 @@ export function ExpandableDataTable<TData>({
             className={cn(
               "[&>thead]:sticky [&>thead]:top-0 [&>thead]:z-10",
               !hasNestedHeader && "table-fixed" // nested header가 없으면 table-fixed 적용
-            )}>
-            {/* nested header가 있으면 table-fixed 제거, 없으면 적용 */}
+            )}
+            style={{ minWidth: hasNestedHeader ? getTableWidth() : undefined }}>
+            {/* nested header가 있으면 table-fixed 제거하고 minWidth로 너비 강제, 없으면 table-fixed 적용 */}
             <TableHeader className="bg-background">
               {table.getHeaderGroups().map((headerGroup) => (
                 <TableRow key={headerGroup.id} className={compactStyles.headerRow}>
@@ -540,7 +541,11 @@ export function ExpandableDataTable<TData>({
                           ...getPinnedStyle(header.column, true),
                           // 부모 그룹 헤더는 colSpan으로 너비가 결정되므로 width 설정하지 않음
                           // 자식 헤더만 개별 width 설정
-                          ...(!('columns' in header.column.columnDef) && { width: header.getSize() }),
+                          ...(!('columns' in header.column.columnDef) && { 
+                            width: header.getSize(),
+                            minWidth: header.getSize(),
+                            maxWidth: header.column.columnDef.maxSize,
+                          }),
                         }}
                       >
                         <div style={{ position: "relative" }}>
@@ -655,7 +660,9 @@ export function ExpandableDataTable<TData>({
                               )}
                               style={{
                                 ...getPinnedStyle(cell.column, false),
-                                width: cell.column.getSize()
+                                width: cell.column.getSize(),
+                                minWidth: cell.column.getSize(),
+                                maxWidth: cell.column.columnDef.maxSize,
                               }}
                               // ✅ 클릭 이벤트 추가
                               onClick={isClickable ? (e) => handleCellClick(row.id, cell.column.id, e) : undefined}
diff --git a/components/data-table/infinite-data-table.tsx b/components/data-table/infinite-data-table.tsx
index 0242e052..a17a9b55 100644
--- a/components/data-table/infinite-data-table.tsx
+++ b/components/data-table/infinite-data-table.tsx
@@ -154,8 +154,9 @@ export function InfiniteDataTable<TData>({
           className={cn(
             "[&>thead]:sticky [&>thead]:top-0 [&>thead]:z-10",
             !hasNestedHeader && "table-fixed" // nested header가 없으면 table-fixed 적용
-          )}>
-          {/* nested header가 있으면 table-fixed 제거, 없으면 적용 */}
+          )}
+          style={{ minWidth: hasNestedHeader ? getTableWidth() : undefined }}>
+          {/* nested header가 있으면 table-fixed 제거하고 minWidth로 너비 강제, 없으면 table-fixed 적용 */}
           {/* 테이블 헤더 */}
           <TableHeader>
             {table.getHeaderGroups().map((headerGroup) => (
@@ -175,7 +176,11 @@ export function InfiniteDataTable<TData>({
                         ...getPinnedStyle(header.column, true), // 🎯 헤더임을 명시
                         // 부모 그룹 헤더는 colSpan으로 너비가 결정되므로 width 설정하지 않음
                         // 자식 헤더만 개별 width 설정
-                        ...(!('columns' in header.column.columnDef) && { width: header.getSize() }),
+                        ...(!('columns' in header.column.columnDef) && { 
+                          width: header.getSize(),
+                          minWidth: header.getSize(),
+                          maxWidth: header.column.columnDef.maxSize,
+                        }),
                       }}
                     >
                       <div style={{ position: "relative" }}>
@@ -272,7 +277,9 @@ export function InfiniteDataTable<TData>({
                             className={compactStyles.cell}
                             style={{
                               ...getPinnedStyle(cell.column, false), // 🎯 바디 셀임을 명시
-                              width: cell.column.getSize(), // 🎯 width 별도 설정
+                              width: cell.column.getSize(),
+                              minWidth: cell.column.getSize(),
+                              maxWidth: cell.column.columnDef.maxSize,
                             }}
                           >
                             {flexRender(
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