1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 /* 6 Displays a notification with the current time. Requires "notifications" 7 permission in the manifest file (or calling 8 "Notification.requestPermission" beforehand). 9 */ 10 function show() { 11 var time = /(..)(:..)/.exec(new Date()); // The prettyprinted time. 12 var hour = time[1] % 12 || 12; // The prettyprinted hour. 13 var period = time[1] < 12 ? 'a.m.' : 'p.m.'; // The period of the day. 14 new Notification(hour + time[2] + ' ' + period, { 15 icon: '48.png', 16 body: 'Time to make the toast.' 17 }); 18 } 19 20 // Conditionally initialize the options. 21 if (!localStorage.isInitialized) { 22 localStorage.isActivated = true; // The display activation. 23 localStorage.frequency = 1; // The display frequency, in minutes. 24 localStorage.isInitialized = true; // The option initialization. 25 } 26 27 // Test for notification support. 28 if (window.Notification) { 29 // While activated, show notifications at the display frequency. 30 if (JSON.parse(localStorage.isActivated)) { show(); } 31 32 var interval = 0; // The display interval, in minutes. 33 34 setInterval(function() { 35 interval++; 36 37 if ( 38 JSON.parse(localStorage.isActivated) && 39 localStorage.frequency <= interval 40 ) { 41 show(); 42 interval = 0; 43 } 44 }, 60000); 45 } 46
