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CalendarLite.js
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CalendarLite.js
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define([
"dojo/_base/array", // array.forEach array.map
"dojo/_base/declare", // declare
"dojo/cldr/supplemental", // cldrSupplemental.getFirstDayOfWeek
"dojo/date", // date
"dojo/date/locale",
"dojo/date/stamp", // stamp.fromISOString
"dojo/dom", // dom.setSelectable
"dojo/dom-class", // domClass.contains
"dojo/dom-attr",
"dojo/_base/lang", // lang.getObject, lang.hitch
"dojo/on",
"dojo/sniff", // has("ie") has("webkit")
"dojo/string", // string.substitute
"./_WidgetBase",
"./_TemplatedMixin",
"dojo/text!./templates/Calendar.html",
"./a11yclick", // not used directly, but template has ondijitclick in it
"./hccss" // not used directly, but sets CSS class on <body>
], function(array, declare, cldrSupplemental, date, locale, stamp, dom, domClass, domAttr, lang, on, has, string, _WidgetBase, _TemplatedMixin, template){
// module:
// dijit/CalendarLite
var CalendarLite = declare("dijit.CalendarLite", [_WidgetBase, _TemplatedMixin], {
// summary:
// Lightweight version of Calendar widget aimed towards mobile use
//
// description:
// A simple GUI for choosing a date in the context of a monthly calendar.
// This widget can't be used in a form because it doesn't serialize the date to an
// `<input>` field. For a form element, use dijit/form/DateTextBox instead.
//
// Note that the parser takes all dates attributes passed in the
// [RFC 3339 format](http://www.faqs.org/rfcs/rfc3339.html), e.g. `2005-06-30T08:05:00-07:00`
// so that they are serializable and locale-independent.
//
// Also note that this widget isn't keyboard accessible; use dijit.Calendar for that
// example:
// | var calendar = new dijit.CalendarLite({}, dojo.byId("calendarNode"));
//
// example:
// | <div data-dojo-type="dijit/CalendarLite"></div>
// Template for main calendar
templateString: template,
// Template for cell for a day of the week (ex: M)
dowTemplateString: '<th class="dijitReset dijitCalendarDayLabelTemplate" role="columnheader" scope="col"><span class="dijitCalendarDayLabel">${d}</span></th>',
// Templates for a single date (ex: 13), and for a row for a week (ex: 20 21 22 23 24 25 26)
dateTemplateString: '<td class="dijitReset" role="gridcell" data-dojo-attach-point="dateCells"><span class="dijitCalendarDateLabel" data-dojo-attach-point="dateLabels"></span></td>',
weekTemplateString: '<tr class="dijitReset dijitCalendarWeekTemplate" role="row">${d}${d}${d}${d}${d}${d}${d}</tr>',
// value: Date
// The currently selected Date, initially set to invalid date to indicate no selection.
value: new Date(""),
// TODO: for 2.0 make this a string (ISO format) rather than a Date
// datePackage: String
// JavaScript namespace to find calendar routines. If unspecified, uses Gregorian calendar routines
// at dojo/date and dojo/date/locale.
datePackage: "",
// TODO: for 2.0, replace datePackage with dateModule and dateLocalModule attributes specifying MIDs,
// or alternately just get rid of this completely and tell user to use module ID remapping
// via require
// dayWidth: String
// How to represent the days of the week in the calendar header. See locale
dayWidth: "narrow",
// tabIndex: String
// Order fields are traversed when user hits the tab key
tabIndex: "0",
// dayOffset: Integer
// (Optional) The first day of week override. By default the first day of week is determined
// for the current locale (extracted from the CLDR).
// Special value -1 (default value), means use locale dependent value.
dayOffset: -1,
// currentFocus: Date
// Date object containing the currently focused date, or the date which would be focused
// if the calendar itself was focused. Also indicates which year and month to display,
// i.e. the current "page" the calendar is on.
currentFocus: new Date(),
// Put the summary to the node with role=grid
_setSummaryAttr: "gridNode",
baseClass: "dijitCalendar dijitCalendarLite",
_isValidDate: function(/*Date*/ value){
// summary:
// Runs various tests on the value, checking that it's a valid date, rather
// than blank or NaN.
// tags:
// private
return value && !isNaN(value) && typeof value == "object" &&
value.toString() != this.constructor.prototype.value.toString();
},
_getValueAttr: function(){
// summary:
// Support get('value')
// this.value is set to 1AM, but return midnight, local time for back-compat
var storedVal = this._get("value");
if(storedVal && !isNaN(storedVal)){
var value = new this.dateClassObj(storedVal);
value.setHours(0, 0, 0, 0);
// If daylight savings pushes midnight to the previous date, fix the Date
// object to point at 1am so it will represent the correct day. See #9366
if(value.getDate() < storedVal.getDate()){
value = this.dateModule.add(value, "hour", 1);
}
return value;
}else{
return null;
}
},
_setValueAttr: function(/*Date|Number*/ value, /*Boolean*/ priorityChange){
// summary:
// Support set("value", ...)
// description:
// Set the current date and update the UI. If the date is disabled, the value will
// not change, but the display will change to the corresponding month.
// value:
// Either a Date or the number of seconds since 1970.
// tags:
// protected
if(typeof value == "string"){
value = stamp.fromISOString(value);
}
value = this._patchDate(value);
if(this._isValidDate(value) && !this.isDisabledDate(value, this.lang)){
this._set("value", value);
// Set focus cell to the new value. Arguably this should only happen when there isn't a current
// focus point. This will also repopulate the grid to new month/year if necessary.
this.set("currentFocus", value);
// Mark the selected date
this._markSelectedDates([value]);
if(this._created && (priorityChange || typeof priorityChange == "undefined")){
this.onChange(this.get('value'));
}
}else{
// clear value, and mark all dates as unselected
this._set("value", null);
this._markSelectedDates([]);
}
},
_patchDate: function(/*Date|Number*/ value){
// summary:
// Convert Number into Date, or copy Date object. Then, round to nearest day,
// setting to 1am to avoid issues when DST shift occurs at midnight, see #8521, #9366)
if(value || value === 0){
value = new this.dateClassObj(value);
value.setHours(1, 0, 0, 0);
}
return value;
},
_setText: function(node, text){
// summary:
// This just sets the content of node to the specified text.
// Can't do "node.innerHTML=text" because of an IE bug w/tables, see #3434.
// tags:
// private
while(node.firstChild){
node.removeChild(node.firstChild);
}
node.appendChild(node.ownerDocument.createTextNode(text));
},
_populateGrid: function(){
// summary:
// Fills in the calendar grid with each day (1-31).
// Call this on creation, when moving to a new month.
// tags:
// private
var month = new this.dateClassObj(this.currentFocus);
month.setDate(1);
month = this._patchDate(month); // needed if currentFocus is start or end of DST, see #17033
var firstDay = month.getDay(),
daysInMonth = this.dateModule.getDaysInMonth(month),
daysInPreviousMonth = this.dateModule.getDaysInMonth(this.dateModule.add(month, "month", -1)),
today = new this.dateClassObj(),
dayOffset = this.dayOffset >= 0 ? this.dayOffset : cldrSupplemental.getFirstDayOfWeek(this.lang);
if(dayOffset > firstDay){
dayOffset -= 7;
}
// If they didn't provide a summary, change the default summary to match with the new month
if(!this.summary){
var monthNames = this.dateLocaleModule.getNames('months', 'wide', 'standAlone', this.lang, month)
this.gridNode.setAttribute("summary", monthNames[month.getMonth()]);
}
// Mapping from date (as specified by number returned from Date.valueOf()) to corresponding <td>
this._date2cell = {};
// Iterate through dates in the calendar and fill in date numbers and style info
array.forEach(this.dateCells, function(template, idx){
var i = idx + dayOffset;
var date = new this.dateClassObj(month),
number, clazz = "dijitCalendar", adj = 0;
if(i < firstDay){
number = daysInPreviousMonth - firstDay + i + 1;
adj = -1;
clazz += "Previous";
}else if(i >= (firstDay + daysInMonth)){
number = i - firstDay - daysInMonth + 1;
adj = 1;
clazz += "Next";
}else{
number = i - firstDay + 1;
clazz += "Current";
}
if(adj){
date = this.dateModule.add(date, "month", adj);
}
date.setDate(number);
if(!this.dateModule.compare(date, today, "date")){
clazz = "dijitCalendarCurrentDate " + clazz;
}
if(this.isDisabledDate(date, this.lang)){
clazz = "dijitCalendarDisabledDate " + clazz;
template.setAttribute("aria-disabled", "true");
}else{
clazz = "dijitCalendarEnabledDate " + clazz;
template.removeAttribute("aria-disabled");
template.setAttribute("aria-selected", "false");
}
var clazz2 = this.getClassForDate(date, this.lang);
if(clazz2){
clazz = clazz2 + " " + clazz;
}
template.className = clazz + "Month dijitCalendarDateTemplate";
// Each cell has an associated integer value representing it's date
var dateVal = date.valueOf();
this._date2cell[dateVal] = template;
template.dijitDateValue = dateVal;
// Set Date string (ex: "13").
var localizedDate = date.getDateLocalized ? date.getDateLocalized(this.lang) : date.getDate()
this._setText(this.dateLabels[idx], localizedDate);
domAttr.set(template, 'aria-label', locale.format(date, {
selector: 'date',
formatLength: 'long'
}));
}, this);
},
_populateControls: function(){
// summary:
// Fill in localized month, and prev/current/next years
// tags:
// protected
var month = new this.dateClassObj(this.currentFocus);
month.setDate(1);
// set name of this month
this.monthWidget.set("month", month);
var y = month.getFullYear() - 1;
var d = new this.dateClassObj();
array.forEach(["previous", "current", "next"], function(name){
d.setFullYear(y++);
this._setText(this[name + "YearLabelNode"],
this.dateLocaleModule.format(d, {selector: 'year', locale: this.lang}));
}, this);
},
goToToday: function(){
// summary:
// Sets calendar's value to today's date
this.set('value', new this.dateClassObj());
},
constructor: function(params /*===== , srcNodeRef =====*/){
// summary:
// Create the widget.
// params: Object|null
// Hash of initialization parameters for widget, including scalar values (like title, duration etc.)
// and functions, typically callbacks like onClick.
// The hash can contain any of the widget's properties, excluding read-only properties.
// srcNodeRef: DOMNode|String?
// If a srcNodeRef (DOM node) is specified, replace srcNodeRef with my generated DOM tree
this.dateModule = params.datePackage ? lang.getObject(params.datePackage, false) : date;
this.dateClassObj = this.dateModule.Date || Date;
this.dateLocaleModule = params.datePackage ? lang.getObject(params.datePackage + ".locale", false) : locale;
},
_createMonthWidget: function(){
// summary:
// Creates the drop down button that displays the current month and lets user pick a new one
return CalendarLite._MonthWidget({
id: this.id + "_mddb",
lang: this.lang,
dateLocaleModule: this.dateLocaleModule
}, this.monthNode);
},
buildRendering: function(){
// Markup for days of the week (referenced from template)
var d = this.dowTemplateString,
dayNames = this.dateLocaleModule.getNames('days', this.dayWidth, 'standAlone', this.lang),
dayOffset = this.dayOffset >= 0 ? this.dayOffset : cldrSupplemental.getFirstDayOfWeek(this.lang);
this.dayCellsHtml = string.substitute([d, d, d, d, d, d, d].join(""), {d: ""}, function(){
return dayNames[dayOffset++ % 7];
});
// Markup for dates of the month (referenced from template), but without numbers filled in
var r = string.substitute(this.weekTemplateString, {d: this.dateTemplateString});
this.dateRowsHtml = [r, r, r, r, r, r].join("");
// Instantiate from template.
// dateCells and dateLabels arrays filled when _Templated parses my template.
this.dateCells = [];
this.dateLabels = [];
this.inherited(arguments);
dom.setSelectable(this.domNode, false);
var dateObj = new this.dateClassObj(this.currentFocus);
this.monthWidget = this._createMonthWidget();
this.set('currentFocus', dateObj, false); // draw the grid to the month specified by currentFocus
},
postCreate: function(){
this.inherited(arguments);
this._connectControls();
},
_connectControls: function(){
// summary:
// Set up connects for increment/decrement of months/years
// tags:
// protected
var connect = lang.hitch(this, function(nodeProp, part, amount){
this[nodeProp].dojoClick = true;
return on(this[nodeProp], "click", lang.hitch(this, function(){
this._setCurrentFocusAttr(this.dateModule.add(this.currentFocus, part, amount));
}));
});
this.own(
connect("incrementMonth", "month", 1),
connect("decrementMonth", "month", -1),
connect("nextYearLabelNode", "year", 1),
connect("previousYearLabelNode", "year", -1)
);
},
_setCurrentFocusAttr: function(/*Date*/ date, /*Boolean*/ forceFocus){
// summary:
// If the calendar currently has focus, then focuses specified date,
// changing the currently displayed month/year if necessary.
// If the calendar doesn't have focus, updates currently
// displayed month/year, and sets the cell that will get focus
// when Calendar is focused.
// forceFocus:
// If true, will focus() the cell even if calendar itself doesn't have focus
var oldFocus = this.currentFocus,
oldCell = this._getNodeByDate(oldFocus);
date = this._patchDate(date);
this._set("currentFocus", date);
// If the focus is on a different month than the current calendar month, switch the displayed month.
// Also will populate the grid initially, on Calendar creation.
if(!this._date2cell || this.dateModule.difference(oldFocus, date, "month") != 0){
this._populateGrid();
this._populateControls();
this._markSelectedDates([this.value]);
}
// set tabIndex=0 on new cell, and focus it (but only if Calendar itself is focused)
var newCell = this._getNodeByDate(date);
newCell.setAttribute("tabIndex", this.tabIndex);
if(this.focused || forceFocus){
newCell.focus();
}
// set tabIndex=-1 on old focusable cell
if(oldCell && oldCell != newCell){
if(has("webkit")){ // see #11064 about webkit bug
oldCell.setAttribute("tabIndex", "-1");
}else{
oldCell.removeAttribute("tabIndex");
}
}
},
focus: function(){
// summary:
// Focus the calendar by focusing one of the calendar cells
this._setCurrentFocusAttr(this.currentFocus, true);
},
_onDayClick: function(/*Event*/ evt){
// summary:
// Handler for day clicks, selects the date if appropriate
// tags:
// protected
evt.stopPropagation();
evt.preventDefault();
for(var node = evt.target; node && !node.dijitDateValue && node.dijitDateValue !== 0; node = node.parentNode){
;
}
if(node && !domClass.contains(node, "dijitCalendarDisabledDate")){
this.set('value', node.dijitDateValue);
}
},
_getNodeByDate: function(/*Date*/ value){
// summary:
// Returns the cell corresponding to the date, or null if the date is not within the currently
// displayed month.
value = this._patchDate(value);
return value && this._date2cell ? this._date2cell[value.valueOf()] : null;
},
_markSelectedDates: function(/*Date[]*/ dates){
// summary:
// Marks the specified cells as selected, and clears cells previously marked as selected.
// For CalendarLite at most one cell is selected at any point, but this allows an array
// for easy subclassing.
// Function to mark a cell as selected or unselected
function mark(/*Boolean*/ selected, /*DomNode*/ cell){
domClass.toggle(cell, "dijitCalendarSelectedDate", selected);
cell.setAttribute("aria-selected", selected ? "true" : "false");
}
// Clear previously selected cells.
array.forEach(this._selectedCells || [], lang.partial(mark, false));
// Mark newly selected cells. Ignore dates outside the currently displayed month.
this._selectedCells = array.filter(array.map(dates, this._getNodeByDate, this), function(n){
return n;
});
array.forEach(this._selectedCells, lang.partial(mark, true));
},
onChange: function(/*Date*/ /*===== date =====*/){
// summary:
// Called only when the selected date has changed
},
isDisabledDate: function(/*===== dateObject, locale =====*/){
// summary:
// May be overridden to disable certain dates in the calendar e.g. `isDisabledDate=dojo.date.locale.isWeekend`
// dateObject: Date
// locale: String?
// tags:
// extension
/*=====
return false; // Boolean
=====*/
},
getClassForDate: function(/*===== dateObject, locale =====*/){
// summary:
// May be overridden to return CSS classes to associate with the date entry for the given dateObject,
// for example to indicate a holiday in specified locale.
// dateObject: Date
// locale: String?
// tags:
// extension
/*=====
return ""; // String
=====*/
}
});
CalendarLite._MonthWidget = declare("dijit.CalendarLite._MonthWidget", _WidgetBase, {
// summary:
// Displays name of current month padded to the width of the month
// w/the longest name, so that changing months doesn't change width.
//
// Create as:
// | new Calendar._MonthWidget({
// | lang: ...,
// | dateLocaleModule: ...
// | })
_setMonthAttr: function(month){
// summary:
// Set the current month to display as a label
var monthNames = this.dateLocaleModule.getNames('months', 'wide', 'standAlone', this.lang, month),
spacer =
(has("ie") == 6 ? "" : "<div class='dijitSpacer'>" +
array.map(monthNames,function(s){
return "<div>" + s + "</div>";
}).join("") + "</div>");
// Set name of current month and also fill in spacer element with all the month names
// (invisible) so that the maximum width will affect layout. But not on IE6 because then
// the center <TH> overlaps the right <TH> (due to a browser bug).
this.domNode.innerHTML =
spacer +
"<div class='dijitCalendarMonthLabel dijitCalendarCurrentMonthLabel'>" +
monthNames[month.getMonth()] + "</div>";
}
});
return CalendarLite;
});