vikunja-frontend/src/ServiceWorker/sw.js
2021-01-30 21:45:54 +01:00

112 lines
3 KiB
JavaScript

/* eslint-disable no-console */
/* eslint-disable no-undef */
// Cache assets
workbox.routing.registerRoute(
// This regexp matches all files in precache-manifest
new RegExp('.+\\.(css|json|js|svg|woff2|png|html|txt|wav)$'),
new workbox.strategies.StaleWhileRevalidate(),
)
// Always send api reqeusts through the network
workbox.routing.registerRoute(
new RegExp('api\\/v1\\/.*$'),
new workbox.strategies.NetworkOnly(),
)
// This code listens for the user's confirmation to update the app.
self.addEventListener('message', (e) => {
if (!e.data) {
return
}
switch (e.data) {
case 'skipWaiting':
self.skipWaiting()
break
default:
// NOOP
break
}
})
const getBearerToken = async () => {
// we can't get a client that sent the current request, therefore we need
// to ask any controlled page for auth token
const allClients = await self.clients.matchAll()
const client = allClients.filter(client => client.type === 'window')[0]
// if there is no page in scope, we can't get any token
// and we indicate it with null value
if (!client) {
return null
}
// to communicate with a page we will use MessageChannels
// they expose pipe-like interface, where a receiver of
// a message uses one end of a port for messaging and
// we use the other end for listening
const channel = new MessageChannel()
client.postMessage({
'action': 'getBearerToken',
}, [channel.port1])
// ports support only onmessage callback which
// is cumbersome to use, so we wrap it with Promise
return new Promise((resolve, reject) => {
channel.port2.onmessage = event => {
if (event.data.error) {
console.error('Port error', event.error)
reject(event.data.error)
}
resolve(event.data.authToken)
}
})
}
// Notification action
self.addEventListener('notificationclick', function (event) {
const taskId = event.notification.data.taskId
event.notification.close()
switch (event.action) {
case 'mark-as-done':
// FIXME: Ugly as hell, but no other way of doing this, since we can't use modules
// in service workers for now.
fetch('/config.json')
.then(r => r.json())
.then(config => {
getBearerToken()
.then(token => {
fetch(`${config.VIKUNJA_API_BASE_URL}tasks/${taskId}`, {
method: 'post',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
'Authorization': `Bearer ${token}`,
},
body: JSON.stringify({id: taskId, done: true}),
})
.then(r => r.json())
.then(r => {
console.debug('Task marked as done from notification', r)
})
.catch(e => {
console.debug('Error marking task as done from notification', e)
})
})
})
break
case 'show-task':
clients.openWindow(`/tasks/${taskId}`)
break
}
})
workbox.core.clientsClaim()
// The precaching code provided by Workbox.
self.__precacheManifest = [].concat(self.__precacheManifest || [])
workbox.precaching.precacheAndRoute(self.__precacheManifest, {})