OLD | NEW |
(Empty) | |
| 1 // Copyright 2014 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 cr.define('settime', function() { |
| 6 /** |
| 7 * TimeSetter handles a dialog to check and set system time. It can also |
| 8 * include a timezone dropdown if timezoneId is provided. |
| 9 * |
| 10 * TimeSetter uses the system time to populate the controls initially and |
| 11 * update them as the system time or timezone changes, and notifies Chrome |
| 12 * when the user changes the time or timezone. |
| 13 * @constructor |
| 14 */ |
| 15 function TimeSetter() {} |
| 16 |
| 17 cr.addSingletonGetter(TimeSetter); |
| 18 |
| 19 /** @const */ var BODY_PADDING_PX = 20; |
| 20 /** @const */ var LABEL_PADDING_PX = 5; |
| 21 |
| 22 TimeSetter.prototype = { |
| 23 /** |
| 24 * Performs initial setup. |
| 25 */ |
| 26 initialize: function() { |
| 27 // Store values for reverting inputs when the user's date/time is invalid. |
| 28 this.prevValues_ = {}; |
| 29 |
| 30 // The build time doesn't include a timezone, so subtract 1 day to get a |
| 31 // safe minimum date. |
| 32 this.minDate_ = new Date(loadTimeData.getValue('buildTime')); |
| 33 this.minDate_.setDate(this.minDate_.getDate() - 1); |
| 34 |
| 35 // Set the max date to the min date plus 20 years. |
| 36 this.maxDate_ = new Date(this.minDate_); |
| 37 this.maxDate_.setYear(this.minDate_.getFullYear() + 20); |
| 38 |
| 39 // Make sure the ostensible date is within this range. |
| 40 var now = new Date(); |
| 41 if (now > this.maxDate_) |
| 42 this.maxDate_ = now; |
| 43 else if (now < this.minDate_) |
| 44 this.minDate_ = now; |
| 45 |
| 46 $('date').setAttribute('min', this.toHtmlValues_(this.minDate_).date); |
| 47 $('date').setAttribute('max', this.toHtmlValues_(this.maxDate_).date); |
| 48 |
| 49 this.updateTime_(); |
| 50 |
| 51 // Show the timezone select if we have a timezone ID. |
| 52 var currentTimezoneId = loadTimeData.getValue('currentTimezoneId'); |
| 53 if (currentTimezoneId) { |
| 54 this.setTimezone_(currentTimezoneId); |
| 55 $('timezone-select').addEventListener( |
| 56 'change', this.onTimezoneChange_.bind(this), false); |
| 57 $('timezone').hidden = false; |
| 58 } |
| 59 |
| 60 this.sizeToFit_(); |
| 61 |
| 62 $('time').addEventListener('blur', this.onTimeBlur_.bind(this), false); |
| 63 $('date').addEventListener('blur', this.onTimeBlur_.bind(this), false); |
| 64 |
| 65 $('set-time').addEventListener( |
| 66 'submit', this.onSubmit_.bind(this), false); |
| 67 }, |
| 68 |
| 69 /** |
| 70 * Sets the current timezone. |
| 71 * @param {string} timezoneId The timezone ID to select. |
| 72 * @private |
| 73 */ |
| 74 setTimezone_: function(timezoneId) { |
| 75 $('timezone-select').value = timezoneId; |
| 76 this.updateTime_(); |
| 77 }, |
| 78 |
| 79 /** |
| 80 * Updates the date/time controls to the current local time. |
| 81 * Called initially, then called again once a minute. |
| 82 * @private |
| 83 */ |
| 84 updateTime_: function() { |
| 85 var now = new Date(); |
| 86 |
| 87 // Only update time controls if neither is focused. |
| 88 if (document.activeElement.id != 'date' && |
| 89 document.activeElement.id != 'time') { |
| 90 var htmlValues = this.toHtmlValues_(now); |
| 91 this.prevValues_.date = $('date').value = htmlValues.date; |
| 92 this.prevValues_.time = $('time').value = htmlValues.time; |
| 93 } |
| 94 |
| 95 window.clearTimeout(this.timeTimeout_); |
| 96 |
| 97 // Start timer to update these inputs every minute. |
| 98 var secondsRemaining = 60 - now.getSeconds(); |
| 99 this.timeTimeout_ = window.setTimeout(this.updateTime_.bind(this), |
| 100 secondsRemaining * 1000); |
| 101 }, |
| 102 |
| 103 /** |
| 104 * Sets the system time from the UI. |
| 105 * @private |
| 106 */ |
| 107 applyTime_: function() { |
| 108 var date = $('date').valueAsDate; |
| 109 date.setMilliseconds(date.getMilliseconds() + $('time').valueAsNumber); |
| 110 |
| 111 // Add timezone offset to get real time. |
| 112 date.setMinutes(date.getMinutes() + date.getTimezoneOffset()); |
| 113 |
| 114 var seconds = Math.floor(date / 1000); |
| 115 chrome.send('setTimeInSeconds', [seconds]); |
| 116 }, |
| 117 |
| 118 /** |
| 119 * Called when focus is lost on date/time controls. |
| 120 * @param {Event} e The blur event. |
| 121 * @private |
| 122 */ |
| 123 onTimeBlur_: function(e) { |
| 124 if (e.target.validity.valid && e.target.value) { |
| 125 // Make this the new fallback time in case of future invalid input. |
| 126 this.prevValues_[e.target.id] = e.target.value; |
| 127 this.applyTime_(); |
| 128 } else { |
| 129 // Restore previous value. |
| 130 e.target.value = this.prevValues_[e.target.id]; |
| 131 } |
| 132 }, |
| 133 |
| 134 /** |
| 135 * @param {Event} e The change event. |
| 136 * @private |
| 137 */ |
| 138 onTimezoneChange_: function(e) { |
| 139 chrome.send('setTimezone', [e.currentTarget.value]); |
| 140 }, |
| 141 |
| 142 /** |
| 143 * Closes the dialog window. |
| 144 * @param {Event} e The submit event. |
| 145 * @private |
| 146 */ |
| 147 onSubmit_: function(e) { |
| 148 e.preventDefault(); |
| 149 chrome.send('dialogClose'); |
| 150 }, |
| 151 |
| 152 /** |
| 153 * Resizes the window if necessary to show the entire contents. |
| 154 * @private |
| 155 */ |
| 156 sizeToFit_: function() { |
| 157 // Because of l10n, we should check that the vertical content can fit |
| 158 // within the window. |
| 159 if (window.innerHeight < document.body.scrollHeight) { |
| 160 // Resize window to fit scrollHeight and the title bar. |
| 161 var newHeight = document.body.scrollHeight + |
| 162 window.outerHeight - window.innerHeight; |
| 163 window.resizeTo(window.outerWidth, newHeight); |
| 164 } |
| 165 }, |
| 166 |
| 167 /** |
| 168 * Builds date and time strings suitable for the values of HTML date and |
| 169 * time elements. |
| 170 * @param {Date} date The date object to represent. |
| 171 * @return {{date: string, time: string}} Date is an RFC 3339 formatted date |
| 172 * and time is an HH:MM formatted time. |
| 173 * @private |
| 174 */ |
| 175 toHtmlValues_: function(date) { |
| 176 // Get the current time and subtract the timezone offset, so the |
| 177 // JSON string is in local time. |
| 178 var localDate = new Date(date); |
| 179 localDate.setMinutes(date.getMinutes() - date.getTimezoneOffset()); |
| 180 return {date: localDate.toISOString().slice(0, 10), |
| 181 time: localDate.toISOString().slice(11, 16)}; |
| 182 }, |
| 183 }; |
| 184 |
| 185 TimeSetter.setTimezone = function(timezoneId) { |
| 186 TimeSetter.getInstance().setTimezone_(timezoneId); |
| 187 }; |
| 188 |
| 189 TimeSetter.updateTime = function() { |
| 190 TimeSetter.getInstance().updateTime_(); |
| 191 }; |
| 192 |
| 193 return { |
| 194 TimeSetter: TimeSetter |
| 195 }; |
| 196 }); |
| 197 |
| 198 document.addEventListener('DOMContentLoaded', function() { |
| 199 settime.TimeSetter.getInstance().initialize(); |
| 200 }); |
OLD | NEW |