89 lines
2.4 KiB
TypeScript
89 lines
2.4 KiB
TypeScript
/*
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This file is part of GNU Taler
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(C) 2020 Taler Systems S.A.
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GNU Taler is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* Imports.
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*/
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import { Logger } from "@gnu-taler/taler-util";
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import { TimerAPI, TimerHandle } from "@gnu-taler/taler-wallet-core";
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const nullTimerHandle = {
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clear() {
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// do nothing
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return;
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},
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unref() {
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// do nothing
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return;
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},
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};
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const logger = new Logger("ServiceWorkerTimerGroup.ts");
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/**
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* Implementation of [[TimerAPI]] using alarm API
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*/
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export class ServiceWorkerTimerAPI implements TimerAPI {
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/**
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* Call a function every time the delay given in milliseconds passes.
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*/
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every(delayMs: number, callback: () => void): TimerHandle {
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const seconds = delayMs / 1000;
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const periodInMinutes = Math.round(seconds < 61 ? 1 : seconds / 60);
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logger.trace(`creating a alarm every ${periodInMinutes} ${delayMs}`)
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chrome.alarms.create("wallet-worker", { periodInMinutes })
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chrome.alarms.onAlarm.addListener((a) => {
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logger.trace(`alarm called, every: ${a.name}`)
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callback()
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})
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return new AlarmHandle();
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}
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/**
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* Call a function after the delay given in milliseconds passes.
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*/
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after(delayMs: number, callback: () => void): TimerHandle {
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const seconds = delayMs / 1000;
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const delayInMinutes = Math.round(seconds < 61 ? 1 : seconds / 60);
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logger.trace(`creating a alarm after ${delayInMinutes} ${delayMs}`)
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chrome.alarms.create("wallet-worker", { delayInMinutes })
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chrome.alarms.onAlarm.addListener((a) => {
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logger.trace(`alarm called, after: ${a.name}`)
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callback();
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})
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return new AlarmHandle();
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}
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}
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class AlarmHandle implements TimerHandle {
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clear(): void {
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chrome.alarms.clear("wallet-worker", (result) => {
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logger.info(`Alarm 'wallet-worker' was cleared: ${result}`)
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})
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return;
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}
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unref(): void {
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return;
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}
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}
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