export default simpleMemoize(() => {
const storageAreas = {
local: initLocalStorage(),
sync: initSyncStorage(),
session: initSessionStorage(),
}
const listeners = []
const createListener = storageAreaName => changes => {
for (const [ key, { oldValue, newValue } ] of Object.entries(changes)) {
safelyInvokeFns({
fns: listeners,
args: [ {
key,
storageAreaName,
oldValue,
newValue,
} ],
})
}
}
// sessionStorage 不需要监听改动
for (const storageAreaName of [ 'local', 'sync' ]) {
storageAreas[storageAreaName].listen(createListener(storageAreaName))
}
return {
...storageAreas,
listen: fn => arrayUniquePush(listeners, fn),
unlisten: fn => arrayRemove(listeners, fn),
}
})
// 是否为当前登录用户的个人页面（消息页面，不含收藏、相册等）
export function isLoggedInUserProfilePage() {
const userId = getLoggedInUserId()
return (
userId &&
window.location.pathname.split('/')[1] === userId
)
}
// 是否为当前登录用户用户好友页面
export const isLoggedInUserFriendsListPage = simpleMemoize(async () => {
if (!isFriendsListPage()) return false
await safeElementReady('#stream')
const urlA = select('.tabs .crumb').href
const urlB = getLoggedInUserProfilePageUrl()
return urlA === urlB
})
// 是否为当前登录用户用户粉丝页面
export const isLoggedInUserFollowersListPage = simpleMemoize(async () => {
if (!isFollowersListPage()) return false
await safeElementReady('#stream')
const urlA = select('.tabs .crumb').href
const urlB = getLoggedInUserProfilePageUrl()
return urlA === urlB
import simpleMemoize from 'just-once'
import keepRetry from '@libs/keepRetry'
export default simpleMemoize(() => keepRetry({
checker: () => document.head,
delay: 0, // 这里必须是 0，否则会影响到主样式的加载速度，进而出现样式抖动现象
}))
import cookies from 'js-cookie'
import simpleMemoize from 'just-once'
// 默认 cookies 在页面加载后不发生变化
export default simpleMemoize(() => cookies.get('u'))