34 lines
959 B
JavaScript
34 lines
959 B
JavaScript
import debounce from 'lodash/debounce'
|
|
import { toast } from './toast'
|
|
|
|
const OFFLINE_DELAY = 1000
|
|
|
|
const notifyOffline = debounce(() => {
|
|
toast.say('You seem to be offline. You can still read toots while offline.')
|
|
}, OFFLINE_DELAY)
|
|
|
|
let oldTheme
|
|
let meta = process.browser && document.querySelector('meta[name="theme-color"]')
|
|
|
|
const observe = online => {
|
|
if (!localStorage.store_currentInstance) {
|
|
return // only show notification for logged-in users
|
|
}
|
|
document.body.classList.toggle('offline', !online)
|
|
if (online) {
|
|
meta.content = oldTheme || window.__themeColors['default']
|
|
} else {
|
|
let offlineThemeColor = window.__themeColors.offline
|
|
if (meta.content !== offlineThemeColor) { oldTheme = meta.content }
|
|
meta.content = offlineThemeColor
|
|
notifyOffline()
|
|
}
|
|
}
|
|
|
|
if (!navigator.onLine) {
|
|
observe(false)
|
|
}
|
|
|
|
window.addEventListener('offline', () => observe(false))
|
|
window.addEventListener('online', () => observe(true))
|