gnome-shell/js/ui/calendar.js

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/* -*- mode: js2; js2-basic-offset: 4; indent-tabs-mode: nil -*- */
const DBus = imports.dbus;
const Clutter = imports.gi.Clutter;
const Gio = imports.gi.Gio;
const Lang = imports.lang;
const St = imports.gi.St;
const Signals = imports.signals;
const Pango = imports.gi.Pango;
const Gettext_gtk30 = imports.gettext.domain('gtk30');
const Mainloop = imports.mainloop;
const Shell = imports.gi.Shell;
const MSECS_IN_DAY = 24 * 60 * 60 * 1000;
const WEEKDATE_HEADER_WIDTH_DIGITS = 3;
const SHOW_WEEKDATE_KEY = 'show-weekdate';
// in org.gnome.desktop.interface
const CLOCK_FORMAT_KEY = 'clock-format';
function _sameDay(dateA, dateB) {
return (dateA.getDate() == dateB.getDate() &&
dateA.getMonth() == dateB.getMonth() &&
dateA.getYear() == dateB.getYear());
}
function _sameYear(dateA, dateB) {
return (dateA.getYear() == dateB.getYear());
}
/* TODO: maybe needs config - right now we assume that Saturday and
* Sunday are non-work days (not true in e.g. Israel, it's Sunday and
* Monday there)
*/
function _isWorkDay(date) {
return date.getDay() != 0 && date.getDay() != 6;
}
function _getBeginningOfDay(date) {
let ret = new Date(date.getTime());
ret.setHours(0);
ret.setMinutes(0);
ret.setSeconds(0);
ret.setMilliseconds(0);
return ret;
}
function _getEndOfDay(date) {
let ret = new Date(date.getTime());
ret.setHours(23);
ret.setMinutes(59);
ret.setSeconds(59);
ret.setMilliseconds(999);
return ret;
}
function _formatEventTime(event, clockFormat) {
let ret;
if (event.allDay) {
/* Translators: Shown in calendar event list for all day events
* Keep it short, best if you can use less then 10 characters
*/
ret = C_("event list time", "All Day");
} else {
switch (clockFormat) {
case '24h':
/* Translators: Shown in calendar event list, if 24h format */
ret = event.date.toLocaleFormat(C_("event list time", "%H:%M"));
break;
default:
/* explicit fall-through */
case '12h':
/* Transators: Shown in calendar event list, if 12h format */
ret = event.date.toLocaleFormat(C_("event list time", "%l:%M %p"));
break;
}
}
return ret;
}
function _getCalendarWeekForDate(date) {
// Based on the algorithms found here:
// http://en.wikipedia.org/wiki/Talk:ISO_week_date
let midnightDate = new Date(date.getFullYear(), date.getMonth(), date.getDate());
// Need to get Monday to be 1 ... Sunday to be 7
let dayOfWeek = 1 + ((midnightDate.getDay() + 6) % 7);
let nearestThursday = new Date(midnightDate.getFullYear(), midnightDate.getMonth(),
midnightDate.getDate() + (4 - dayOfWeek));
let jan1st = new Date(nearestThursday.getFullYear(), 0, 1);
let diffDate = nearestThursday - jan1st;
let dayNumber = Math.floor(Math.abs(diffDate) / MSECS_IN_DAY);
let weekNumber = Math.floor(dayNumber / 7) + 1;
return weekNumber;
}
function _getDigitWidth(actor){
let context = actor.get_pango_context();
let themeNode = actor.get_theme_node();
let font = themeNode.get_font();
let metrics = context.get_metrics(font, context.get_language());
let width = metrics.get_approximate_digit_width();
return width;
}
function _getCalendarDayAbbreviation(dayNumber) {
let abbreviations = [
/* Translators: Calendar grid abbreviation for Sunday.
*
* NOTE: These grid abbreviations are always shown together
* and in order, e.g. "S M T W T F S".
*/
C_("grid sunday", "S"),
/* Translators: Calendar grid abbreviation for Monday */
C_("grid monday", "M"),
/* Translators: Calendar grid abbreviation for Tuesday */
C_("grid tuesday", "T"),
/* Translators: Calendar grid abbreviation for Wednesday */
C_("grid wednesday", "W"),
/* Translators: Calendar grid abbreviation for Thursday */
C_("grid thursday", "T"),
/* Translators: Calendar grid abbreviation for Friday */
C_("grid friday", "F"),
/* Translators: Calendar grid abbreviation for Saturday */
C_("grid saturday", "S")
];
return abbreviations[dayNumber];
}
function _getEventDayAbbreviation(dayNumber) {
let abbreviations = [
/* Translators: Event list abbreviation for Sunday.
*
* NOTE: These list abbreviations are normally not shown together
* so they need to be unique (e.g. Tuesday and Thursday cannot
* both be 'T').
*/
C_("list sunday", "Su"),
/* Translators: Event list abbreviation for Monday */
C_("list monday", "M"),
/* Translators: Event list abbreviation for Tuesday */
C_("list tuesday", "T"),
/* Translators: Event list abbreviation for Wednesday */
C_("list wednesday", "W"),
/* Translators: Event list abbreviation for Thursday */
C_("list thursday", "Th"),
/* Translators: Event list abbreviation for Friday */
C_("list friday", "F"),
/* Translators: Event list abbreviation for Saturday */
C_("list saturday", "S")
];
return abbreviations[dayNumber];
}
// Abstraction for an appointment/event in a calendar
function CalendarEvent(date, end, summary, allDay) {
this._init(date, end, summary, allDay);
}
CalendarEvent.prototype = {
_init: function(date, end, summary, allDay) {
this.date = date;
this.end = end;
this.summary = summary;
this.allDay = allDay;
}
};
// Interface for appointments/events - e.g. the contents of a calendar
//
// First, an implementation with no events
function EmptyEventSource() {
this._init();
}
EmptyEventSource.prototype = {
_init: function() {
},
requestRange: function(begin, end) {
},
getEvents: function(begin, end) {
let result = [];
return result;
},
hasEvents: function(day) {
return false;
}
};
Signals.addSignalMethods(EmptyEventSource.prototype);
const CalendarServerIface = {
name: 'org.gnome.Shell.CalendarServer',
methods: [{ name: 'GetEvents',
inSignature: 'xxb',
outSignature: 'a(sssbxxa{sv})' }],
signals: [{ name: 'Changed',
inSignature: '' }]
};
const CalendarServer = function () {
this._init();
};
CalendarServer.prototype = {
_init: function() {
DBus.session.proxifyObject(this, 'org.gnome.Shell.CalendarServer', '/org/gnome/Shell/CalendarServer');
}
};
DBus.proxifyPrototype(CalendarServer.prototype, CalendarServerIface);
// an implementation that reads data from a session bus service
function DBusEventSource(owner) {
this._init(owner);
}
function _datesEqual(a, b) {
if (a < b)
return false;
else if (a > b)
return false;
return true;
}
function _dateIntervalsOverlap(a0, a1, b0, b1)
{
if (a1 <= b0)
return false;
else if (b1 <= a0)
return false;
else
return true;
}
DBusEventSource.prototype = {
_init: function(owner) {
this._resetCache();
this._dbusProxy = new CalendarServer(owner);
this._dbusProxy.connect('Changed', Lang.bind(this, this._onChanged));
DBus.session.watch_name('org.gnome.Shell.CalendarServer',
false, // do not launch a name-owner if none exists
Lang.bind(this, this._onNameAppeared),
Lang.bind(this, this._onNameVanished));
},
_resetCache: function() {
this._events = [];
this._lastRequestBegin = null;
this._lastRequestEnd = null;
},
_onNameAppeared: function(owner) {
this._resetCache();
this._loadEvents(true);
},
_onNameVanished: function(oldOwner) {
this._resetCache();
this.emit('changed');
},
_onChanged: function() {
this._loadEvents(false);
},
_onEventsReceived: function(appointments) {
let newEvents = [];
if (appointments != null) {
for (let n = 0; n < appointments.length; n++) {
let a = appointments[n];
let date = new Date(a[4] * 1000);
let end = new Date(a[5] * 1000);
let summary = a[1];
let allDay = a[3];
let event = new CalendarEvent(date, end, summary, allDay);
newEvents.push(event);
}
newEvents.sort(function(event1, event2) {
return event1.date.getTime() - event2.date.getTime();
});
}
this._events = newEvents;
this.emit('changed');
},
_loadEvents: function(forceReload) {
if (this._curRequestBegin && this._curRequestEnd){
let callFlags = 0;
if (forceReload)
callFlags |= DBus.CALL_FLAG_START;
this._dbusProxy.GetEventsRemote(this._curRequestBegin.getTime() / 1000,
this._curRequestEnd.getTime() / 1000,
forceReload,
Lang.bind(this, this._onEventsReceived),
callFlags);
}
},
requestRange: function(begin, end, forceReload) {
if (forceReload || !(_datesEqual(begin, this._lastRequestBegin) && _datesEqual(end, this._lastRequestEnd))) {
this._lastRequestBegin = begin;
this._lastRequestEnd = end;
this._curRequestBegin = begin;
this._curRequestEnd = end;
this._loadEvents(forceReload);
}
},
getEvents: function(begin, end) {
let result = [];
for(let n = 0; n < this._events.length; n++) {
let event = this._events[n];
if (_dateIntervalsOverlap (event.date, event.end, begin, end)) {
result.push(event);
}
}
return result;
},
hasEvents: function(day) {
let dayBegin = _getBeginningOfDay(day);
let dayEnd = _getEndOfDay(day);
let events = this.getEvents(dayBegin, dayEnd);
if (events.length == 0)
return false;
return true;
}
};
Signals.addSignalMethods(DBusEventSource.prototype);
// Calendar:
// @eventSource: is an object implementing the EventSource API, e.g. the
// requestRange(), getEvents(), hasEvents() methods and the ::changed signal.
function Calendar(eventSource) {
this._init(eventSource);
}
Calendar.prototype = {
_init: function(eventSource) {
this._eventSource = eventSource;
this._eventSource.connect('changed', Lang.bind(this,
function() {
this._update(false);
}));
// FIXME: This is actually the fallback method for GTK+ for the week start;
// GTK+ by preference uses nl_langinfo (NL_TIME_FIRST_WEEKDAY). We probably
// should add a C function so we can do the full handling.
this._weekStart = NaN;
this._weekdate = NaN;
this._digitWidth = NaN;
this._settings = new Gio.Settings({ schema: 'org.gnome.shell.calendar' });
this._settings.connect('changed::' + SHOW_WEEKDATE_KEY, Lang.bind(this, this._onSettingsChange));
this._useWeekdate = this._settings.get_boolean(SHOW_WEEKDATE_KEY);
let weekStartString = Gettext_gtk30.gettext('calendar:week_start:0');
if (weekStartString.indexOf('calendar:week_start:') == 0) {
this._weekStart = parseInt(weekStartString.substring(20));
}
if (isNaN(this._weekStart) || this._weekStart < 0 || this._weekStart > 6) {
log('Translation of "calendar:week_start:0" in GTK+ is not correct');
this._weekStart = 0;
}
// Find the ordering for month/year in the calendar heading
this._headerFormatWithoutYear = '%B';
switch (Gettext_gtk30.gettext('calendar:MY')) {
case 'calendar:MY':
this._headerFormat = '%B %Y';
break;
case 'calendar:YM':
this._headerFormat = '%Y %B';
break;
default:
log('Translation of "calendar:MY" in GTK+ is not correct');
this._headerFormat = '%B %Y';
break;
}
// Start off with the current date
this._selectedDate = new Date();
this.actor = new St.Table({ homogeneous: false,
style_class: 'calendar',
reactive: true });
this.actor.connect('scroll-event',
Lang.bind(this, this._onScroll));
this._buildHeader ();
},
// Sets the calendar to show a specific date
setDate: function(date, forceReload) {
if (!_sameDay(date, this._selectedDate)) {
this._selectedDate = date;
this._update(forceReload);
this.emit('selected-date-changed', new Date(this._selectedDate));
} else {
if (forceReload)
this._update(forceReload);
}
},
_buildHeader: function() {
let offsetCols = this._useWeekdate ? 1 : 0;
this.actor.destroy_children();
// Top line of the calendar '<| September 2009 |>'
this._topBox = new St.BoxLayout();
this.actor.add(this._topBox,
{ row: 0, col: 0, col_span: offsetCols + 7 });
this.actor.connect('style-changed', Lang.bind(this, this._onStyleChange));
let back = new St.Button({ style_class: 'calendar-change-month-back' });
this._topBox.add(back);
back.connect('clicked', Lang.bind(this, this._onPrevMonthButtonClicked));
this._monthLabel = new St.Label({style_class: 'calendar-month-label'});
this._topBox.add(this._monthLabel, { expand: true, x_fill: false, x_align: St.Align.MIDDLE });
let forward = new St.Button({ style_class: 'calendar-change-month-forward' });
this._topBox.add(forward);
forward.connect('clicked', Lang.bind(this, this._onNextMonthButtonClicked));
// Add weekday labels...
//
// We need to figure out the abbreviated localized names for the days of the week;
// we do this by just getting the next 7 days starting from right now and then putting
// them in the right cell in the table. It doesn't matter if we add them in order
let iter = new Date(this._selectedDate);
iter.setSeconds(0); // Leap second protection. Hah!
iter.setHours(12);
for (let i = 0; i < 7; i++) {
// Could use iter.toLocaleFormat('%a') but that normally gives three characters
// and we want, ideally, a single character for e.g. S M T W T F S
let customDayAbbrev = _getCalendarDayAbbreviation(iter.getDay());
let label = new St.Label({ style_class: 'calendar-day-base calendar-day-heading',
text: customDayAbbrev });
this.actor.add(label,
{ row: 1,
col: offsetCols + (7 + iter.getDay() - this._weekStart) % 7,
x_fill: false, x_align: St.Align.MIDDLE });
iter.setTime(iter.getTime() + MSECS_IN_DAY);
}
// All the children after this are days, and get removed when we update the calendar
this._firstDayIndex = this.actor.get_children().length;
},
_onStyleChange: function(actor, event) {
// width of a digit in pango units
this._digitWidth = _getDigitWidth(this.actor) / Pango.SCALE;
this._setWeekdateHeaderWidth();
},
_setWeekdateHeaderWidth: function() {
if (this.digitWidth != NaN && this._useWeekdate && this._weekdateHeader) {
this._weekdateHeader.set_width (this._digitWidth * WEEKDATE_HEADER_WIDTH_DIGITS);
}
},
_onScroll : function(actor, event) {
switch (event.get_scroll_direction()) {
case Clutter.ScrollDirection.UP:
case Clutter.ScrollDirection.LEFT:
this._onPrevMonthButtonClicked();
break;
case Clutter.ScrollDirection.DOWN:
case Clutter.ScrollDirection.RIGHT:
this._onNextMonthButtonClicked();
break;
}
},
_onPrevMonthButtonClicked: function() {
let newDate = new Date(this._selectedDate);
let oldMonth = newDate.getMonth();
if (oldMonth == 0) {
newDate.setMonth(11);
newDate.setFullYear(newDate.getFullYear() - 1);
if (newDate.getMonth() != 11) {
let day = 32 - new Date(newDate.getFullYear() - 1, 11, 32).getDate();
newDate = new Date(newDate.getFullYear() - 1, 11, day);
}
}
else {
newDate.setMonth(oldMonth - 1);
if (newDate.getMonth() != oldMonth - 1) {
let day = 32 - new Date(newDate.getFullYear(), oldMonth - 1, 32).getDate();
newDate = new Date(newDate.getFullYear(), oldMonth - 1, day);
}
}
this.setDate(newDate, false);
},
_onNextMonthButtonClicked: function() {
let newDate = new Date(this._selectedDate);
let oldMonth = newDate.getMonth();
if (oldMonth == 11) {
newDate.setMonth(0);
newDate.setFullYear(newDate.getFullYear() + 1);
if (newDate.getMonth() != 0) {
let day = 32 - new Date(newDate.getFullYear() + 1, 0, 32).getDate();
newDate = new Date(newDate.getFullYear() + 1, 0, day);
}
}
else {
newDate.setMonth(oldMonth + 1);
if (newDate.getMonth() != oldMonth + 1) {
let day = 32 - new Date(newDate.getFullYear(), oldMonth + 1, 32).getDate();
newDate = new Date(newDate.getFullYear(), oldMonth + 1, day);
}
}
this.setDate(newDate, false);
},
_onSettingsChange: function() {
this._useWeekdate = this._settings.get_boolean(SHOW_WEEKDATE_KEY);
this._buildHeader();
this._update(false);
},
_update: function(forceReload) {
let now = new Date();
if (_sameYear(this._selectedDate, now))
this._monthLabel.text = this._selectedDate.toLocaleFormat(this._headerFormatWithoutYear);
else
this._monthLabel.text = this._selectedDate.toLocaleFormat(this._headerFormat);
// Remove everything but the topBox and the weekday labels
let children = this.actor.get_children();
for (let i = this._firstDayIndex; i < children.length; i++)
children[i].destroy();
// Start at the beginning of the week before the start of the month
let beginDate = new Date(this._selectedDate);
beginDate.setDate(1);
beginDate.setSeconds(0);
beginDate.setHours(12);
let daysToWeekStart = (7 + beginDate.getDay() - this._weekStart) % 7;
beginDate.setTime(beginDate.getTime() - daysToWeekStart * MSECS_IN_DAY);
let iter = new Date(beginDate);
let row = 2;
while (true) {
let button = new St.Button({ label: iter.getDate().toString() });
let iterStr = iter.toUTCString();
button.connect('clicked', Lang.bind(this, function() {
let newlySelectedDate = new Date(iterStr);
this.setDate(newlySelectedDate, false);
}));
let hasEvents = this._eventSource.hasEvents(iter);
let styleClass = 'calendar-day-base calendar-day';
if (_isWorkDay(iter))
styleClass += ' calendar-work-day'
else
styleClass += ' calendar-nonwork-day'
// Hack used in lieu of border-collapse - see gnome-shell.css
if (row == 2)
styleClass = 'calendar-day-top ' + styleClass;
if (iter.getDay() == this._weekStart)
styleClass = 'calendar-day-left ' + styleClass;
if (_sameDay(now, iter))
styleClass += ' calendar-today';
else if (iter.getMonth() != this._selectedDate.getMonth())
styleClass += ' calendar-other-month-day';
if (_sameDay(this._selectedDate, iter))
button.add_style_pseudo_class('active');
if (hasEvents)
styleClass += ' calendar-day-with-events'
button.style_class = styleClass;
let offsetCols = this._useWeekdate ? 1 : 0;
this.actor.add(button,
{ row: row, col: offsetCols + (7 + iter.getDay() - this._weekStart) % 7 });
if (this._useWeekdate && iter.getDay() == 4) {
let label = new St.Label({ text: _getCalendarWeekForDate(iter).toString(),
style_class: 'calendar-day-base calendar-week-number'});
this.actor.add(label,
{ row: row, col: 0, y_align: St.Align.MIDDLE });
}
iter.setTime(iter.getTime() + MSECS_IN_DAY);
if (iter.getDay() == this._weekStart) {
// We stop on the first "first day of the week" after the month we are displaying
if (iter.getMonth() > this._selectedDate.getMonth() || iter.getYear() > this._selectedDate.getYear())
break;
row++;
}
}
// Signal to the event source that we are interested in events
// only from this date range
this._eventSource.requestRange(beginDate, iter, forceReload);
}
};
Signals.addSignalMethods(Calendar.prototype);
function EventsList(eventSource) {
this._init(eventSource);
}
EventsList.prototype = {
_init: function(eventSource) {
this.actor = new St.BoxLayout({ vertical: true, style_class: 'events-header-vbox'});
this._date = new Date();
this._eventSource = eventSource;
this._eventSource.connect('changed', Lang.bind(this, this._update));
this._desktopSettings = new Gio.Settings({ schema: 'org.gnome.desktop.interface' });
this._desktopSettings.connect('changed', Lang.bind(this, this._update));
let weekStartString = Gettext_gtk30.gettext('calendar:week_start:0');
if (weekStartString.indexOf('calendar:week_start:') == 0) {
this._weekStart = parseInt(weekStartString.substring(20));
}
if (isNaN(this._weekStart) ||
this._weekStart < 0 ||
this._weekStart > 6) {
log('Translation of "calendar:week_start:0" in GTK+ is not correct');
this._weekStart = 0;
}
this._update();
},
_addEvent: function(dayNameBox, timeBox, eventTitleBox, includeDayName, day, time, desc) {
if (includeDayName) {
dayNameBox.add(new St.Label( { style_class: 'events-day-dayname',
text: day } ),
{ x_fill: true } );
}
timeBox.add(new St.Label( { style_class: 'events-day-time',
text: time} ),
{ x_fill: true } );
eventTitleBox.add(new St.Label( { style_class: 'events-day-task',
text: desc} ));
},
_addPeriod: function(header, begin, end, includeDayName, showNothingScheduled) {
let events = this._eventSource.getEvents(begin, end);
let clockFormat = this._desktopSettings.get_string(CLOCK_FORMAT_KEY);;
if (events.length == 0 && !showNothingScheduled)
return;
let vbox = new St.BoxLayout( {vertical: true} );
this.actor.add(vbox);
vbox.add(new St.Label({ style_class: 'events-day-header', text: header }));
let box = new St.BoxLayout({style_class: 'events-header-hbox'});
let dayNameBox = new St.BoxLayout({ vertical: true, style_class: 'events-day-name-box' });
let timeBox = new St.BoxLayout({ vertical: true, style_class: 'events-time-box' });
let eventTitleBox = new St.BoxLayout({ vertical: true, style_class: 'events-event-box' });
box.add(dayNameBox, {x_fill: false});
box.add(timeBox, {x_fill: false});
box.add(eventTitleBox, {expand: true});
vbox.add(box);
for (let n = 0; n < events.length; n++) {
let event = events[n];
let dayString = _getEventDayAbbreviation(event.date.getDay());
let timeString = _formatEventTime(event, clockFormat);
let summaryString = event.summary;
this._addEvent(dayNameBox, timeBox, eventTitleBox, includeDayName, dayString, timeString, summaryString);
}
if (events.length == 0 && showNothingScheduled) {
let now = new Date();
/* Translators: Text to show if there are no events */
let nothingEvent = new CalendarEvent(now, now, _("Nothing Scheduled"), true);
let timeString = _formatEventTime(nothingEvent, clockFormat);
this._addEvent(dayNameBox, timeBox, eventTitleBox, false, "", timeString, nothingEvent.summary);
}
},
_showOtherDay: function(day) {
this.actor.destroy_children();
let dayBegin = _getBeginningOfDay(day);
let dayEnd = _getEndOfDay(day);
let dayString;
let now = new Date();
if (_sameYear(day, now))
/* Translators: Shown on calendar heading when selected day occurs on current year */
dayString = day.toLocaleFormat(C_("calendar heading", "%A, %B %d"));
else
/* Translators: Shown on calendar heading when selected day occurs on different year */
dayString = day.toLocaleFormat(C_("calendar heading", "%A, %B %d, %Y"));
this._addPeriod(dayString, dayBegin, dayEnd, false, true);
},
_showToday: function() {
this.actor.destroy_children();
let now = new Date();
let dayBegin = _getBeginningOfDay(now);
let dayEnd = _getEndOfDay(now);
this._addPeriod(_("Today"), dayBegin, dayEnd, false, true);
let tomorrowBegin = new Date(dayBegin.getTime() + 86400 * 1000);
let tomorrowEnd = new Date(dayEnd.getTime() + 86400 * 1000);
this._addPeriod(_("Tomorrow"), tomorrowBegin, tomorrowEnd, false, true);
if (dayEnd.getDay() <= 4 + this._weekStart) {
/* If now is within the first 5 days we show "This week" and
* include events up until and including Saturday/Sunday
* (depending on whether a week starts on Sunday/Monday).
*/
let thisWeekBegin = new Date(dayBegin.getTime() + 2 * 86400 * 1000);
let thisWeekEnd = new Date(dayEnd.getTime() + (6 + this._weekStart - dayEnd.getDay()) * 86400 * 1000);
this._addPeriod(_("This week"), thisWeekBegin, thisWeekEnd, true, false);
} else {
/* otherwise it's one of the two last days of the week ... show
* "Next week" and include events up until and including *next*
* Saturday/Sunday
*/
let nextWeekBegin = new Date(dayBegin.getTime() + 2 * 86400 * 1000);
let nextWeekEnd = new Date(dayEnd.getTime() + (13 + this._weekStart - dayEnd.getDay()) * 86400 * 1000);
this._addPeriod(_("Next week"), nextWeekBegin, nextWeekEnd, true, false);
}
},
// Sets the event list to show events from a specific date
setDate: function(date) {
if (!_sameDay(date, this._date)) {
this._date = date;
this._update();
}
},
_update: function() {
let today = new Date();
if (_sameDay (this._date, today)) {
this._showToday();
} else {
this._showOtherDay(this._date);
}
}
};