60 lines
1.5 KiB
TypeScript
60 lines
1.5 KiB
TypeScript
import type { Preference } from '@vben-core/typings';
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class PreferenceCache {
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cachePrefix: string;
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constructor(cachePrefix: string) {
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this.cachePrefix = cachePrefix;
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}
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/**
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* 从 localStorage 中获取偏好设置
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* @returns 返回从 localStorage 中获取的偏好设置，如果没有获取到，则返回默认偏好设置。
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*/
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get(defaultValue: Preference): Preference {
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let cache = defaultValue;
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try {
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cache = JSON.parse(localStorage.getItem(this.getCacheKey()) || '');
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} catch {
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return defaultValue;
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}
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return cache;
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}
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/**
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* 获取偏好设置的缓存键
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*/
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getCacheKey(name: string = 'preference') {
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return `__${this.cachePrefix}-${name}__`;
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}
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/**
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* 从 localStorage 中移除偏好设置
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*/
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remove() {
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localStorage.removeItem(this.getCacheKey());
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localStorage.removeItem(this.getCacheKey('locale'));
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localStorage.removeItem(this.getCacheKey('theme'));
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}
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/**
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* 将当前偏好设置持久化到 localStorage
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*/
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set(preference: Preference) {
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localStorage.setItem(this.getCacheKey(), JSON.stringify(preference));
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// 额外存储一份主题、语言
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localStorage.setItem(this.getCacheKey('locale'), preference.locale);
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localStorage.setItem(this.getCacheKey('theme'), preference.theme);
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}
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/**
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* 设置偏好设置的缓存前缀
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* @param prefix - 前缀
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*/
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setCachePrefix(prefix: string) {
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this.cachePrefix = prefix;
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}
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}
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export type PreferenceCacheType = PreferenceCache;
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export { PreferenceCache };
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