feat: 提取 usePagination Hook

src/views/Community/components/DynamicNewsCard.js

@@ -26,52 +26,20 @@ import UnifiedSearchBox from './UnifiedSearchBox';
 import { fetchDynamicNews, toggleEventFollow, selectEventFollowStatus } from '../../../store/slices/communityDataSlice';
 
 /**
- * 实时要闻·动态追踪 - 事件展示卡片组件
- * @param {Array} allCachedEvents - 完整缓存事件列表（从 Redux 传入）
- * @param {boolean} loading - 加载状态
- * @param {number} total - 服务端总数量
- * @param {number} cachedCount - 已缓存数量
- * @param {Object} filters - 筛选条件
- * @param {Array} popularKeywords - 热门关键词
- * @param {Date} lastUpdateTime - 最后更新时间
- * @param {Function} onSearch - 搜索回调
- * @param {Function} onSearchFocus - 搜索框获得焦点回调
- * @param {Function} onEventClick - 事件点击回调
- * @param {Function} onViewDetail - 查看详情回调
- * @param {Object} ref - 用于滚动的ref
+ * 分页逻辑自定义 Hook
+ * @param {Object} options - Hook 配置选项
+ * @param {Array} options.allCachedEvents - 完整缓存事件列表
+ * @param {number} options.total - 服务端总数量
+ * @param {number} options.cachedCount - 已缓存数量
+ * @param {Function} options.dispatch - Redux dispatch 函数
+ * @param {Function} options.toast - Toast 通知函数
+ * @returns {Object} 分页状态和方法
  */
-const DynamicNewsCard = forwardRef(({
-  allCachedEvents = [],
-  loading,
-  total = 0,
-  cachedCount = 0,
-  filters = {},
-  popularKeywords = [],
-  lastUpdateTime,
-  onSearch,
-  onSearchFocus,
-  onEventClick,
-  onViewDetail,
-  ...rest
-}, ref) => {
-  const dispatch = useDispatch();
-  const toast = useToast();
-  const cardBg = useColorModeValue('white', 'gray.800');
-  const borderColor = useColorModeValue('gray.200', 'gray.700');
-
-  // 从 Redux 读取关注状态
-  const eventFollowStatus = useSelector(selectEventFollowStatus);
-
-  // 关注按钮点击处理
-  const handleToggleFollow = useCallback((eventId) => {
-    dispatch(toggleEventFollow(eventId));
-  }, [dispatch]);
-
+const usePagination = ({ allCachedEvents, total, cachedCount, dispatch, toast }) => {
   // 本地状态
-  const [selectedEvent, setSelectedEvent] = useState(null);
-  const [mode, setMode] = useState('carousel'); // 'carousel' 或 'grid'，默认单排
-  const [currentPage, setCurrentPage] = useState(1); // 当前页码
-  const [loadingPage, setLoadingPage] = useState(null); // 正在加载的目标页码（用于 UX 提示）
+  const [currentPage, setCurrentPage] = useState(1);
+  const [loadingPage, setLoadingPage] = useState(null);
+  const [mode, setMode] = useState('carousel'); // 'carousel' 或 'grid'
 
   // 根据模式决定每页显示数量
   const pageSize = mode === 'carousel' ? 5 : 10;
@@ -335,6 +303,86 @@ const DynamicNewsCard = forwardRef(({
     // 如果第1页数据完整，不发起请求，直接切换
   }, [mode, allCachedEvents, total, dispatch]);
 
+  return {
+    // 状态
+    currentPage,
+    mode,
+    loadingPage,
+    pageSize,
+    totalPages,
+    hasMore,
+    currentPageEvents,
+
+    // 方法
+    handlePageChange,
+    handleModeToggle
+  };
+};
+
+/**
+ * 实时要闻·动态追踪 - 事件展示卡片组件
+ * @param {Array} allCachedEvents - 完整缓存事件列表（从 Redux 传入）
+ * @param {boolean} loading - 加载状态
+ * @param {number} total - 服务端总数量
+ * @param {number} cachedCount - 已缓存数量
+ * @param {Object} filters - 筛选条件
+ * @param {Array} popularKeywords - 热门关键词
+ * @param {Date} lastUpdateTime - 最后更新时间
+ * @param {Function} onSearch - 搜索回调
+ * @param {Function} onSearchFocus - 搜索框获得焦点回调
+ * @param {Function} onEventClick - 事件点击回调
+ * @param {Function} onViewDetail - 查看详情回调
+ * @param {Object} ref - 用于滚动的ref
+ */
+const DynamicNewsCard = forwardRef(({
+  allCachedEvents = [],
+  loading,
+  total = 0,
+  cachedCount = 0,
+  filters = {},
+  popularKeywords = [],
+  lastUpdateTime,
+  onSearch,
+  onSearchFocus,
+  onEventClick,
+  onViewDetail,
+  ...rest
+}, ref) => {
+  const dispatch = useDispatch();
+  const toast = useToast();
+  const cardBg = useColorModeValue('white', 'gray.800');
+  const borderColor = useColorModeValue('gray.200', 'gray.700');
+
+  // 从 Redux 读取关注状态
+  const eventFollowStatus = useSelector(selectEventFollowStatus);
+
+  // 关注按钮点击处理
+  const handleToggleFollow = useCallback((eventId) => {
+    dispatch(toggleEventFollow(eventId));
+  }, [dispatch]);
+
+  // 本地状态
+  const [selectedEvent, setSelectedEvent] = useState(null);
+
+  // 使用分页 Hook
+  const {
+    currentPage,
+    mode,
+    loadingPage,
+    pageSize,
+    totalPages,
+    hasMore,
+    currentPageEvents,
+    handlePageChange,
+    handleModeToggle
+  } = usePagination({
+    allCachedEvents,
+    total,
+    cachedCount,
+    dispatch,
+    toast
+  });
+
   // 初始加载
   useEffect(() => {
     if (allCachedEvents.length === 0) {