50 lines
1.4 KiB
TypeScript
50 lines
1.4 KiB
TypeScript
// 树形数据 localStorage 管理模块
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// 注意：使用 any 类型避免循环依赖问题
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export type TreeNode = any
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const STORAGE_KEY = 'app-tree-data'
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// 从 localStorage 获取数据
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export const getTreeDataFromStorage = (): TreeNode[] | null => {
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try {
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const data = localStorage.getItem(STORAGE_KEY)
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if (data) {
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return JSON.parse(data)
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}
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} catch (error) {
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console.error('Error reading from localStorage:', error)
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}
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return null
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}
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// 保存数据到 localStorage
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export const saveTreeDataToStorage = (data: TreeNode[]) => {
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try {
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localStorage.setItem(STORAGE_KEY, JSON.stringify(data))
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} catch (error) {
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console.error('Error saving to localStorage:', error)
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}
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}
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// 清空 localStorage 中的数据
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export const clearTreeDataFromStorage = () => {
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try {
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localStorage.removeItem(STORAGE_KEY)
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} catch (error) {
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console.error('Error clearing localStorage:', error)
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}
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}
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// 初始化数据：如果有 localStorage 数据则使用，否则使用 mockData 并保存
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export const initializeTreeData = (mockData: TreeNode[]): TreeNode[] => {
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const storedData = getTreeDataFromStorage()
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if (storedData) {
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console.log('Loaded tree data from localStorage')
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return storedData
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}
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// 首次加载，保存 mockData 到 localStorage
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saveTreeDataToStorage(mockData)
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console.log('Initialized tree data with mock data and saved to localStorage')
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return mockData
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} |