signal-desktop/ts/services/networkObserver.ts
2020-04-15 14:44:51 -07:00

31 lines
922 B
TypeScript

import {
CheckNetworkStatusPayloadType,
NetworkActionType,
} from '../state/ducks/network';
import { getSocketStatus } from '../shims/socketStatus';
type NetworkActions = {
checkNetworkStatus: (x: CheckNetworkStatusPayloadType) => NetworkActionType;
closeConnectingGracePeriod: () => NetworkActionType;
};
const REFRESH_INTERVAL = 5000;
export function initializeNetworkObserver(networkActions: NetworkActions) {
const { log } = window;
log.info(`Initializing network observer every ${REFRESH_INTERVAL}ms`);
const refresh = () => {
networkActions.checkNetworkStatus({
isOnline: navigator.onLine,
socketStatus: getSocketStatus(),
});
};
window.addEventListener('online', refresh);
window.addEventListener('offline', refresh);
window.setInterval(refresh, REFRESH_INTERVAL);
window.setTimeout(() => {
networkActions.closeConnectingGracePeriod();
}, REFRESH_INTERVAL);
}