| // Copyright (C) 2016 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| (function() { |
| 'use strict'; |
| |
| var Duration = { |
| HOUR: 1000 * 60 * 60, |
| DAY: 1000 * 60 * 60 * 24, |
| }; |
| |
| var TimeFormats = { |
| TIME_12: 'h:mm A', // 2:14 PM |
| TIME_24: 'H:mm', // 14:14 |
| MONTH_DAY: 'MMM DD', // Aug 29 |
| MONTH_DAY_YEAR: 'MMM DD, YYYY', // Aug 29, 1997 |
| }; |
| |
| Polymer({ |
| is: 'gr-date-formatter', |
| |
| properties: { |
| dateStr: { |
| type: String, |
| value: null, |
| notify: true, |
| }, |
| |
| _timeFormat: String, // No default value to prevent flickering. |
| _relative: Boolean, // No default value to prevent flickering. |
| }, |
| |
| attached: function() { |
| this._loadPreferences(); |
| }, |
| |
| _loadPreferences: function() { |
| return this._getLoggedIn().then(function(loggedIn) { |
| if (!loggedIn) { |
| this._timeFormat = TimeFormats.TIME_24; |
| this._relative = false; |
| return; |
| } |
| return Promise.all([ |
| this._loadTimeFormat(), |
| this._loadRelative(), |
| ]); |
| }.bind(this)); |
| }, |
| |
| _loadTimeFormat: function() { |
| return this._getPreferences().then(function(preferences) { |
| var timeFormat = preferences && preferences.time_format; |
| switch (timeFormat) { |
| case 'HHMM_12': |
| this._timeFormat = TimeFormats.TIME_12; |
| break; |
| case 'HHMM_24': |
| this._timeFormat = TimeFormats.TIME_24; |
| break; |
| default: |
| throw Error('Invalid time format: ' + timeFormat); |
| } |
| }.bind(this)); |
| }, |
| |
| _loadRelative: function() { |
| return this._getPreferences().then(function(prefs) { |
| // prefs.relative_date_in_change_table is not set when false. |
| this._relative = !!(prefs && prefs.relative_date_in_change_table); |
| }.bind(this)); |
| }, |
| |
| _getLoggedIn: function() { |
| return this.$.restAPI.getLoggedIn(); |
| }, |
| |
| _getPreferences: function() { |
| return this.$.restAPI.getPreferences(); |
| }, |
| |
| /** |
| * Return true if date is within 24 hours and on the same day. |
| */ |
| _isWithinDay: function(now, date) { |
| var diff = -date.diff(now); |
| return diff < Duration.DAY && date.day() === now.getDay(); |
| }, |
| |
| /** |
| * Returns true if date is from one to six months. |
| */ |
| _isWithinHalfYear: function(now, date) { |
| var diff = -date.diff(now); |
| return (date.day() !== now.getDay() || diff >= Duration.DAY) && |
| diff < 180 * Duration.DAY; |
| }, |
| |
| _computeDateStr: function(dateStr, timeFormat, relative) { |
| if (!dateStr) { return ''; } |
| var date = moment(util.parseDate(dateStr)); |
| if (!date.isValid()) { return ''; } |
| if (relative) { |
| return date.fromNow(); |
| } |
| var now = new Date(); |
| var format = TimeFormats.MONTH_DAY_YEAR; |
| if (this._isWithinDay(now, date)) { |
| format = timeFormat; |
| } else if (this._isWithinHalfYear(now, date)) { |
| format = TimeFormats.MONTH_DAY; |
| } |
| return date.format(format); |
| }, |
| |
| _computeFullDateStr: function(dateStr, timeFormat) { |
| if (!dateStr) { return ''; } |
| var date = moment(util.parseDate(dateStr)); |
| if (!date.isValid()) { return ''; } |
| return date.format(TimeFormats.MONTH_DAY_YEAR + ', ' + timeFormat); |
| }, |
| }); |
| })(); |