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 "webkitNotifications.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 var notification = window.webkitNotifications.createNotification( 15 '48.png', // The image. 16 hour + time[2] + ' ' + period, // The title. 17 'Time to make the toast.' // The body. 18 ); 19 notification.show(); 20 } 21 22 // Conditionally initialize the options. 23 if (!localStorage.isInitialized) { 24 localStorage.isActivated = true; // The display activation. 25 localStorage.frequency = 1; // The display frequency, in minutes. 26 localStorage.isInitialized = true; // The option initialization. 27 } 28 29 // Test for notification support. 30 if (window.webkitNotifications) { 31 // While activated, show notifications at the display frequency. 32 if (JSON.parse(localStorage.isActivated)) { show(); } 33 34 var interval = 0; // The display interval, in minutes. 35 36 setInterval(function() { 37 interval++; 38 39 if ( 40 JSON.parse(localStorage.isActivated) && 41 localStorage.frequency <= interval 42 ) { 43 show(); 44 interval = 0; 45 } 46 }, 60000); 47 } 48
