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