/**
* The CalendarBase submodule is a basic UI calendar view that displays
* a range of dates in a two-dimensional month grid, with one or more
* months visible at a single time. CalendarBase supports custom date
* rendering, multiple calendar panes, and selection.
* @module calendar
* @submodule calendar-base
*/
var getCN = Y.ClassNameManager.getClassName,
CALENDAR = 'calendar',
CAL_GRID = getCN(CALENDAR, 'grid'),
CAL_LEFT_GRID = getCN(CALENDAR, 'left-grid'),
CAL_RIGHT_GRID = getCN(CALENDAR, 'right-grid'),
CAL_BODY = getCN(CALENDAR, 'body'),
CAL_HD = getCN(CALENDAR, 'header'),
CAL_HD_LABEL = getCN(CALENDAR, 'header-label'),
CAL_WDAYROW = getCN(CALENDAR, 'weekdayrow'),
CAL_WDAY = getCN(CALENDAR, 'weekday'),
CAL_COL_HIDDEN = getCN(CALENDAR, 'column-hidden'),
CAL_DAY_SELECTED = getCN(CALENDAR, 'day-selected'),
SELECTION_DISABLED = getCN(CALENDAR, 'selection-disabled'),
CAL_ROW = getCN(CALENDAR, 'row'),
CAL_DAY = getCN(CALENDAR, 'day'),
CAL_PREVMONTH_DAY = getCN(CALENDAR, 'prevmonth-day'),
CAL_NEXTMONTH_DAY = getCN(CALENDAR, 'nextmonth-day'),
CAL_ANCHOR = getCN(CALENDAR, 'anchor'),
CAL_PANE = getCN(CALENDAR, 'pane'),
CAL_STATUS = getCN(CALENDAR, 'status'),
L = Y.Lang,
substitute = L.sub,
arrayEach = Y.Array.each,
objEach = Y.Object.each,
iOf = Y.Array.indexOf,
hasKey = Y.Object.hasKey,
setVal = Y.Object.setValue,
isEmpty = Y.Object.isEmpty,
ydate = Y.DataType.Date;
/** Create a calendar view to represent a single or multiple
* month range of dates, rendered as a grid with date and
* weekday labels.
*
* @class CalendarBase
* @extends Widget
* @param config {Object} Configuration object (see Configuration
* attributes)
* @constructor
*/
function CalendarBase() {
CalendarBase.superclass.constructor.apply ( this, arguments );
}
Y.CalendarBase = Y.extend( CalendarBase, Y.Widget, {
/**
* A storage for various properties of individual month
* panes.
*
* @property _paneProperties
* @type Object
* @private
*/
_paneProperties : {},
/**
* The number of month panes in the calendar, deduced
* from the CONTENT_TEMPLATE's number of {calendar_grid}
* tokens.
*
* @property _paneNumber
* @type Number
* @private
*/
_paneNumber : 1,
/**
* The unique id used to prefix various elements of this
* calendar instance.
*
* @property _calendarId
* @type String
* @private
*/
_calendarId : null,
/**
* The hash map of selected dates, populated with
* selectDates() and deselectDates() methods
*
* @property _selectedDates
* @type Object
* @private
*/
_selectedDates : {},
/**
* A private copy of the rules object, populated
* by setting the customRenderer attribute.
*
* @property _rules
* @type Object
* @private
*/
_rules : {},
/**
* A private copy of the filterFunction, populated
* by setting the customRenderer attribute.
*
* @property _filterFunction
* @type Function
* @private
*/
_filterFunction : null,
/**
* Storage for calendar cells modified by any custom
* formatting. The storage is cleared, used to restore
* cells to the original state, and repopulated accordingly
* when the calendar is rerendered.
*
* @property _storedDateCells
* @type Object
* @private
*/
_storedDateCells : {},
/**
* Designated initializer
* Initializes instance-level properties of
* calendar.
*
* @method initializer
*/
initializer : function () {
this._paneProperties = {};
this._calendarId = Y.guid('calendar');
this._selectedDates = {};
if (isEmpty(this._rules)) {
this._rules = {};
}
this._storedDateCells = {};
},
/**
* renderUI implementation
*
* Creates a visual representation of the calendar based on existing parameters.
* @method renderUI
*/
renderUI : function () {
var contentBox = this.get('contentBox');
contentBox.appendChild(this._initCalendarHTML(this.get('date')));
if (this.get('showPrevMonth')) {
this._afterShowPrevMonthChange();
}
if (this.get('showNextMonth')) {
this._afterShowNextMonthChange();
}
this._renderCustomRules();
this._renderSelectedDates();
this.get("boundingBox").setAttribute("aria-labelledby", this._calendarId + "_header");
},
/**
* bindUI implementation
*
* Assigns listeners to relevant events that change the state
* of the calendar.
* @method bindUI
*/
bindUI : function () {
this.after('dateChange', this._afterDateChange);
this.after('showPrevMonthChange', this._afterShowPrevMonthChange);
this.after('showNextMonthChange', this._afterShowNextMonthChange);
this.after('headerRendererChange', this._afterHeaderRendererChange);
this.after('customRendererChange', this._afterCustomRendererChange);
this.after('enabledDatesRuleChange', this._afterCustomRendererChange);
this.after('disabledDatesRuleChange', this._afterCustomRendererChange);
this.after('focusedChange', this._afterFocusedChange);
this.after('selectionChange', this._renderSelectedDates);
this._bindCalendarEvents();
},
/**
* An internal utility method that generates a list of selected dates
* from the hash storage.
*
* @method _getSelectedDatesList
* @protected
* @return {Array} The array of `Date`s that are currently selected.
*/
_getSelectedDatesList : function () {
var output = [];
objEach (this._selectedDates, function (year) {
objEach (year, function (month) {
objEach (month, function (day) {
output.push (day);
}, this);
}, this);
}, this);
return output;
},
/**
* A utility method that returns all dates selected in a specific month.
*
* @method _getSelectedDatesInMonth
* @param {Date} oDate corresponding to the month for which selected dates
* are requested.
* @protected
* @return {Array} The array of `Date`s in a given month that are currently selected.
*/
_getSelectedDatesInMonth : function (oDate) {
var year = oDate.getFullYear(),
month = oDate.getMonth();
if (hasKey(this._selectedDates, year) && hasKey(this._selectedDates[year], month)) {
return Y.Object.values(this._selectedDates[year][month]);
} else {
return [];
}
},
/**
* An internal parsing method that receives a String list of numbers
* and number ranges (of the form "1,2,3,4-6,7-9,10,11" etc.) and checks
* whether a specific number is included in this list. Used for looking
* up dates in the customRenderer rule set.
*
* @method _isNumInList
* @param {Number} num The number to look for in a list.
* @param {String} strList The list of numbers of the form "1,2,3,4-6,7-8,9", etc.
* @private
* @return {boolean} Returns true if the given number is in the given list.
*/
_isNumInList : function (num, strList) {
if (strList === "all") {
return true;
} else {
var elements = strList.split(","),
i = elements.length,
range;
while (i--) {
range = elements[i].split("-");
if (range.length === 2 && num >= parseInt(range[0], 10) && num <= parseInt(range[1], 10)) {
return true;
}
else if (range.length === 1 && (parseInt(elements[i], 10) === num)) {
return true;
}
}
return false;
}
},
/**
* Given a specific date, returns an array of rules (from the customRenderer rule set)
* that the given date matches.
*
* @method _getRulesForDate
* @param {Date} oDate The date for which an array of rules is needed
* @private
* @return {Array} Returns an array of `String`s, each containg the name of
* a rule that the given date matches.
*/
_getRulesForDate : function (oDate) {
var year = oDate.getFullYear(),
month = oDate.getMonth(),
date = oDate.getDate(),
wday = oDate.getDay(),
rules = this._rules,
outputRules = [],
years, months, dates, days;
for (years in rules) {
if (this._isNumInList(year, years)) {
if (L.isString(rules[years])) {
outputRules.push(rules[years]);
}
else {
for (months in rules[years]) {
if (this._isNumInList(month, months)) {
if (L.isString(rules[years][months])) {
outputRules.push(rules[years][months]);
}
else {
for (dates in rules[years][months]) {
if (this._isNumInList(date, dates)) {
if (L.isString(rules[years][months][dates])) {
outputRules.push(rules[years][months][dates]);
}
else {
for (days in rules[years][months][dates]) {
if (this._isNumInList(wday, days)) {
if (L.isString(rules[years][months][dates][days])) {
outputRules.push(rules[years][months][dates][days]);
}
}
}
}
}
}
}
}
}
}
}
}
return outputRules;
},
/**
* A utility method which, given a specific date and a name of the rule,
* checks whether the date matches the given rule.
*
* @method _matchesRule
* @param {Date} oDate The date to check
* @param {String} rule The name of the rule that the date should match.
* @private
* @return {boolean} Returns true if the date matches the given rule.
*
*/
_matchesRule : function (oDate, rule) {
return (iOf(this._getRulesForDate(oDate), rule) >= 0);
},
/**
* A utility method which checks whether a given date matches the `enabledDatesRule`
* or does not match the `disabledDatesRule` and therefore whether it can be selected.
* @method _canBeSelected
* @param {Date} oDate The date to check
* @private
* @return {boolean} Returns true if the date can be selected; false otherwise.
*/
_canBeSelected : function (oDate) {
var enabledDatesRule = this.get("enabledDatesRule"),
disabledDatesRule = this.get("disabledDatesRule");
if (enabledDatesRule) {
return this._matchesRule(oDate, enabledDatesRule);
} else if (disabledDatesRule) {
return !this._matchesRule(oDate, disabledDatesRule);
} else {
return true;
}
},
/**
* Selects a given date or array of dates.
* @method selectDates
* @param {Date|Array} dates A `Date` or `Array` of `Date`s.
* @return {CalendarBase} A reference to this object
* @chainable
*/
selectDates : function (dates) {
if (ydate.isValidDate(dates)) {
this._addDateToSelection(dates);
}
else if (L.isArray(dates)) {
this._addDatesToSelection(dates);
}
return this;
},
/**
* Deselects a given date or array of dates, or deselects
* all dates if no argument is specified.
* @method deselectDates
* @param {Date|Array} [dates] A `Date` or `Array` of `Date`s, or no
* argument if all dates should be deselected.
* @return {CalendarBase} A reference to this object
* @chainable
*/
deselectDates : function (dates) {
if (!dates) {
this._clearSelection();
}
else if (ydate.isValidDate(dates)) {
this._removeDateFromSelection(dates);
}
else if (L.isArray(dates)) {
this._removeDatesFromSelection(dates);
}
return this;
},
/**
* A utility method that adds a given date to selection..
* @method _addDateToSelection
* @param {Date} oDate The date to add to selection.
* @param {Number} [index] An optional parameter that is used
* to differentiate between individual date selections and multiple
* date selections.
* @private
*/
_addDateToSelection : function (oDate, index) {
oDate = this._normalizeTime(oDate);
if (this._canBeSelected(oDate)) {
var year = oDate.getFullYear(),
month = oDate.getMonth(),
day = oDate.getDate();
if (hasKey(this._selectedDates, year)) {
if (hasKey(this._selectedDates[year], month)) {
this._selectedDates[year][month][day] = oDate;
} else {
this._selectedDates[year][month] = {};
this._selectedDates[year][month][day] = oDate;
}
} else {
this._selectedDates[year] = {};
this._selectedDates[year][month] = {};
this._selectedDates[year][month][day] = oDate;
}
this._selectedDates = setVal(this._selectedDates, [year, month, day], oDate);
if (!index) {
this._fireSelectionChange();
}
}
},
/**
* A utility method that adds a given list of dates to selection.
* @method _addDatesToSelection
* @param {Array} datesArray The list of dates to add to selection.
* @private
*/
_addDatesToSelection : function (datesArray) {
arrayEach(datesArray, this._addDateToSelection, this);
this._fireSelectionChange();
},
/**
* A utility method that adds a given range of dates to selection.
* @method _addDateRangeToSelection
* @param {Date} startDate The first date of the given range.
* @param {Date} endDate The last date of the given range.
* @private
*/
_addDateRangeToSelection : function (startDate, endDate) {
var timezoneDifference = (endDate.getTimezoneOffset() - startDate.getTimezoneOffset())*60000,
startTime = startDate.getTime(),
endTime = endDate.getTime(),
tempTime,
time,
addedDate;
if (startTime > endTime) {
tempTime = startTime;
startTime = endTime;
endTime = tempTime + timezoneDifference;
} else {
endTime = endTime - timezoneDifference;
}
for (time = startTime; time <= endTime; time += 86400000) {
addedDate = new Date(time);
addedDate.setHours(12);
this._addDateToSelection(addedDate, time);
}
this._fireSelectionChange();
},
/**
* A utility method that removes a given date from selection..
* @method _removeDateFromSelection
* @param {Date} oDate The date to remove from selection.
* @param {Number} [index] An optional parameter that is used
* to differentiate between individual date selections and multiple
* date selections.
* @private
*/
_removeDateFromSelection : function (oDate, index) {
var year = oDate.getFullYear(),
month = oDate.getMonth(),
day = oDate.getDate();
if (hasKey(this._selectedDates, year) &&
hasKey(this._selectedDates[year], month) &&
hasKey(this._selectedDates[year][month], day)
) {
delete this._selectedDates[year][month][day];
if (!index) {
this._fireSelectionChange();
}
}
},
/**
* A utility method that removes a given list of dates from selection.
* @method _removeDatesFromSelection
* @param {Array} datesArray The list of dates to remove from selection.
* @private
*/
_removeDatesFromSelection : function (datesArray) {
arrayEach(datesArray, this._removeDateFromSelection, this);
this._fireSelectionChange();
},
/**
* A utility method that removes a given range of dates from selection.
* @method _removeDateRangeFromSelection
* @param {Date} startDate The first date of the given range.
* @param {Date} endDate The last date of the given range.
* @private
*/
_removeDateRangeFromSelection : function (startDate, endDate) {
var startTime = startDate.getTime(),
endTime = endDate.getTime(),
time;
for (time = startTime; time <= endTime; time += 86400000) {
this._removeDateFromSelection(new Date(time), time);
}
this._fireSelectionChange();
},
/**
* A utility method that removes all dates from selection.
* @method _clearSelection
* @param {boolean} noevent A Boolean specifying whether a selectionChange
* event should be fired. If true, the event is not fired.
* @private
*/
_clearSelection : function (noevent) {
this._selectedDates = {};
this.get("contentBox").all("." + CAL_DAY_SELECTED).removeClass(CAL_DAY_SELECTED).setAttribute("aria-selected", false);
if (!noevent) {
this._fireSelectionChange();
}
},
/**
* A utility method that fires a selectionChange event.
* @method _fireSelectionChange
* @private
*/
_fireSelectionChange : function () {
/**
* Fired when the set of selected dates changes. Contains a payload with
* a `newSelection` property with an array of selected dates.
*
* @event selectionChange
*/
this.fire("selectionChange", {newSelection: this._getSelectedDatesList()});
},
/**
* A utility method that restores cells modified by custom formatting.
* @method _restoreModifiedCells
* @private
*/
_restoreModifiedCells : function () {
var contentbox = this.get("contentBox"),
id;
for (id in this._storedDateCells) {
contentbox.one("#" + id).replace(this._storedDateCells[id]);
delete this._storedDateCells[id];
}
},
/**
* A rendering assist method that renders all cells modified by the customRenderer
* rules, as well as the enabledDatesRule and disabledDatesRule.
* @method _renderCustomRules
* @private
*/
_renderCustomRules : function () {
this.get("contentBox").all("." + CAL_DAY + ",." + CAL_NEXTMONTH_DAY).removeClass(SELECTION_DISABLED).setAttribute("aria-disabled", false);
if (!isEmpty(this._rules)) {
var paneNum,
paneDate,
dateArray;
for (paneNum = 0; paneNum < this._paneNumber; paneNum++) {
paneDate = ydate.addMonths(this.get("date"), paneNum);
dateArray = ydate.listOfDatesInMonth(paneDate);
arrayEach(dateArray, Y.bind(this._renderCustomRulesHelper, this));
}
}
},
/**
* A handler for a date selection event (either a click or a keyboard
* selection) that adds the appropriate CSS class to a specific DOM
* node corresponding to the date and sets its aria-selected
* attribute to true.
*
* @method _renderCustomRulesHelper
* @private
*/
_renderCustomRulesHelper: function (date) {
var enRule = this.get("enabledDatesRule"),
disRule = this.get("disabledDatesRule"),
matchingRules,
dateNode;
matchingRules = this._getRulesForDate(date);
if (matchingRules.length > 0) {
if ((enRule && iOf(matchingRules, enRule) < 0) || (!enRule && disRule && iOf(matchingRules, disRule) >= 0)) {
this._disableDate(date);
}
if (L.isFunction(this._filterFunction)) {
dateNode = this._dateToNode(date);
this._storedDateCells[dateNode.get("id")] = dateNode.cloneNode(true);
this._filterFunction (date, dateNode, matchingRules);
}
} else if (enRule) {
this._disableDate(date);
}
},
/**
* A rendering assist method that renders all cells that are currently selected.
* @method _renderSelectedDates
* @private
*/
_renderSelectedDates : function () {
this.get("contentBox").all("." + CAL_DAY_SELECTED).removeClass(CAL_DAY_SELECTED).setAttribute("aria-selected", false);
var paneNum,
paneDate,
dateArray;
for (paneNum = 0; paneNum < this._paneNumber; paneNum++) {
paneDate = ydate.addMonths(this.get("date"), paneNum);
dateArray = this._getSelectedDatesInMonth(paneDate);
arrayEach(dateArray, Y.bind(this._renderSelectedDatesHelper, this));
}
},
/**
* Takes in a date and determines whether that date has any rules
* matching it in the customRenderer; then calls the specified
* filterFunction if that's the case and/or disables the date
* if the rule is specified as a disabledDatesRule.
*
* @method _renderSelectedDatesHelper
* @private
*/
_renderSelectedDatesHelper: function (date) {
this._dateToNode(date).addClass(CAL_DAY_SELECTED).setAttribute("aria-selected", true);
},
/**
* Add the selection-disabled class and aria-disabled attribute to a node corresponding
* to a given date.
*
* @method _disableDate
* @param {Date} date The date to disable
* @private
*/
_disableDate: function (date) {
this._dateToNode(date).addClass(SELECTION_DISABLED).setAttribute("aria-disabled", true);
},
/**
* A utility method that converts a date to the node wrapping the calendar cell
* the date corresponds to..
* @method _dateToNode
* @param {Date} oDate The date to convert to Node
* @protected
* @return {Node} The node wrapping the DOM element of the cell the date
* corresponds to.
*/
_dateToNode : function (oDate) {
var day = oDate.getDate(),
col = 0,
daymod = day%7,
paneNum = (12 + oDate.getMonth() - this.get("date").getMonth()) % 12,
paneId = this._calendarId + "_pane_" + paneNum,
cutoffCol = this._paneProperties[paneId].cutoffCol;
switch (daymod) {
case (0):
if (cutoffCol >= 6) {
col = 12;
} else {
col = 5;
}
break;
case (1):
col = 6;
break;
case (2):
if (cutoffCol > 0) {
col = 7;
} else {
col = 0;
}
break;
case (3):
if (cutoffCol > 1) {
col = 8;
} else {
col = 1;
}
break;
case (4):
if (cutoffCol > 2) {
col = 9;
} else {
col = 2;
}
break;
case (5):
if (cutoffCol > 3) {
col = 10;
} else {
col = 3;
}
break;
case (6):
if (cutoffCol > 4) {
col = 11;
} else {
col = 4;
}
break;
}
return(this.get("contentBox").one("#" + this._calendarId + "_pane_" + paneNum + "_" + col + "_" + day));
},
/**
* A utility method that converts a node corresponding to the DOM element of
* the cell for a particular date to that date.
* @method _nodeToDate
* @param {Node} oNode The Node wrapping the DOM element of a particular date cell.
* @protected
* @return {Date} The date corresponding to the DOM element that the given node wraps.
*/
_nodeToDate : function (oNode) {
var idParts = oNode.get("id").split("_").reverse(),
paneNum = parseInt(idParts[2], 10),
day = parseInt(idParts[0], 10),
shiftedDate = ydate.addMonths(this.get("date"), paneNum),
year = shiftedDate.getFullYear(),
month = shiftedDate.getMonth();
return new Date(year, month, day, 12, 0, 0, 0);
},
/**
* A placeholder method, called from bindUI, to bind the Calendar events.
* @method _bindCalendarEvents
* @protected
*/
_bindCalendarEvents : function () {},
/**
* A utility method that normalizes a given date by converting it to the 1st
* day of the month the date is in, with the time set to noon.
* @method _normalizeDate
* @param {Date} oDate The date to normalize
* @protected
* @return {Date} The normalized date, set to the first of the month, with time
* set to noon.
*/
_normalizeDate : function (date) {
if (date) {
return new Date(date.getFullYear(), date.getMonth(), 1, 12, 0, 0, 0);
} else {
return null;
}
},
/**
* A utility method that normalizes a given date by setting its time to noon.
* @method _normalizeTime
* @param {Date} oDate The date to normalize
* @protected
* @return {Date} The normalized date
* set to noon.
*/
_normalizeTime : function (date) {
if (date) {
return new Date(date.getFullYear(), date.getMonth(), date.getDate(), 12, 0, 0, 0);
} else {
return null;
}
},
/**
* A render assist utility method that computes the cutoff column for the calendar
* rendering mask.
* @method _getCutoffColumn
* @param {Date} date The date of the month grid to compute the cutoff column for.
* @param {Number} firstday The first day of the week (modified by internationalized calendars)
* @private
* @return {Number} The number of the cutoff column.
*/
_getCutoffColumn : function (date, firstday) {
var distance = this._normalizeDate(date).getDay() - firstday,
cutOffColumn = 6 - (distance + 7) % 7;
return cutOffColumn;
},
/**
* A render assist method that turns on the view of the previous month's dates
* in a given calendar pane.
* @method _turnPrevMonthOn
* @param {Node} pane The calendar pane that needs its previous month's dates view
* modified.
* @protected
*/
_turnPrevMonthOn : function (pane) {
var pane_id = pane.get("id"),
pane_date = this._paneProperties[pane_id].paneDate,
daysInPrevMonth = ydate.daysInMonth(ydate.addMonths(pane_date, -1)),
cell;
if (!this._paneProperties[pane_id].hasOwnProperty("daysInPrevMonth")) {
this._paneProperties[pane_id].daysInPrevMonth = 0;
}
if (daysInPrevMonth !== this._paneProperties[pane_id].daysInPrevMonth) {
this._paneProperties[pane_id].daysInPrevMonth = daysInPrevMonth;
for (cell = 5; cell >= 0; cell--) {
pane.one("#" + pane_id + "_" + cell + "_" + (cell-5)).set('text', daysInPrevMonth--);
}
}
},
/**
* A render assist method that turns off the view of the previous month's dates
* in a given calendar pane.
* @method _turnPrevMonthOff
* @param {Node} pane The calendar pane that needs its previous month's dates view
* modified.
* @protected
*/
_turnPrevMonthOff : function (pane) {
var pane_id = pane.get("id"),
cell;
this._paneProperties[pane_id].daysInPrevMonth = 0;
for (cell = 5; cell >= 0; cell--) {
pane.one("#" + pane_id + "_" + cell + "_" + (cell-5)).setContent(" ");
}
},
/**
* A render assist method that cleans up the last few cells in the month grid
* when the number of days in the month changes.
* @method _cleanUpNextMonthCells
* @param {Node} pane The calendar pane that needs the last date cells cleaned up.
* @private
*/
_cleanUpNextMonthCells : function (pane) {
var pane_id = pane.get("id");
pane.one("#" + pane_id + "_6_29").removeClass(CAL_NEXTMONTH_DAY);
pane.one("#" + pane_id + "_7_30").removeClass(CAL_NEXTMONTH_DAY);
pane.one("#" + pane_id + "_8_31").removeClass(CAL_NEXTMONTH_DAY);
pane.one("#" + pane_id + "_0_30").removeClass(CAL_NEXTMONTH_DAY);
pane.one("#" + pane_id + "_1_31").removeClass(CAL_NEXTMONTH_DAY);
},
/**
* A render assist method that turns on the view of the next month's dates
* in a given calendar pane.
* @method _turnNextMonthOn
* @param {Node} pane The calendar pane that needs its next month's dates view
* modified.
* @protected
*/
_turnNextMonthOn : function (pane) {
var dayCounter = 1,
pane_id = pane.get("id"),
daysInMonth = this._paneProperties[pane_id].daysInMonth,
cutoffCol = this._paneProperties[pane_id].cutoffCol,
cell,
startingCell;
for (cell = daysInMonth - 22; cell < cutoffCol + 7; cell++) {
pane.one("#" + pane_id + "_" + cell + "_" + (cell+23)).set("text", dayCounter++).addClass(CAL_NEXTMONTH_DAY);
}
startingCell = cutoffCol;
if (daysInMonth === 31 && (cutoffCol <= 1)) {
startingCell = 2;
} else if (daysInMonth === 30 && cutoffCol === 0) {
startingCell = 1;
}
for (cell = startingCell ; cell < cutoffCol + 7; cell++) {
pane.one("#" + pane_id + "_" + cell + "_" + (cell+30)).set("text", dayCounter++).addClass(CAL_NEXTMONTH_DAY);
}
},
/**
* A render assist method that turns off the view of the next month's dates
* in a given calendar pane.
* @method _turnNextMonthOff
* @param {Node} pane The calendar pane that needs its next month's dates view
* modified.
* @protected
*/
_turnNextMonthOff : function (pane) {
var pane_id = pane.get("id"),
daysInMonth = this._paneProperties[pane_id].daysInMonth,
cutoffCol = this._paneProperties[pane_id].cutoffCol,
cell,
startingCell;
for (cell = daysInMonth - 22; cell <= 12; cell++) {
pane.one("#" + pane_id + "_" + cell + "_" + (cell+23)).setContent(" ").addClass(CAL_NEXTMONTH_DAY);
}
startingCell = 0;
if (daysInMonth === 31 && (cutoffCol <= 1)) {
startingCell = 2;
} else if (daysInMonth === 30 && cutoffCol === 0) {
startingCell = 1;
}
for (cell = startingCell ; cell <= 12; cell++) {
pane.one("#" + pane_id + "_" + cell + "_" + (cell+30)).setContent(" ").addClass(CAL_NEXTMONTH_DAY);
}
},
/**
* The handler for the change in the showNextMonth attribute.
* @method _afterShowNextMonthChange
* @private
*/
_afterShowNextMonthChange : function () {
var contentBox = this.get('contentBox'),
lastPane = contentBox.one("#" + this._calendarId + "_pane_" + (this._paneNumber - 1));
this._cleanUpNextMonthCells(lastPane);
if (this.get('showNextMonth')) {
this._turnNextMonthOn(lastPane);
} else {
this._turnNextMonthOff(lastPane);
}
},
/**
* The handler for the change in the showPrevMonth attribute.
* @method _afterShowPrevMonthChange
* @private
*/
_afterShowPrevMonthChange : function () {
var contentBox = this.get('contentBox'),
firstPane = contentBox.one("#" + this._calendarId + "_pane_" + 0);
if (this.get('showPrevMonth')) {
this._turnPrevMonthOn(firstPane);
} else {
this._turnPrevMonthOff(firstPane);
}
},
/**
* The handler for the change in the headerRenderer attribute.
* @method _afterHeaderRendererChange
* @private
*/
_afterHeaderRendererChange : function () {
var headerCell = this.get("contentBox").one("." + CAL_HD_LABEL);
headerCell.setContent(this._updateCalendarHeader(this.get('date')));
},
/**
* The handler for the change in the customRenderer attribute.
* @method _afterCustomRendererChange
* @private
*/
_afterCustomRendererChange : function () {
this._restoreModifiedCells();
this._renderCustomRules();
},
/**
* The handler for the change in the date attribute. Modifies the calendar
* view by shifting the calendar grid mask and running custom rendering and
* selection rendering as necessary.
* @method _afterDateChange
* @private
*/
_afterDateChange : function () {
var contentBox = this.get('contentBox'),
headerCell = contentBox.one("." + CAL_HD).one("." + CAL_HD_LABEL),
calendarPanes = contentBox.all("." + CAL_GRID),
currentDate = this.get("date"),
counter = 0;
contentBox.setStyle("visibility", "hidden");
headerCell.setContent(this._updateCalendarHeader(currentDate));
this._restoreModifiedCells();
calendarPanes.each(function (curNode) {
this._rerenderCalendarPane(ydate.addMonths(currentDate, counter++), curNode);
}, this);
this._afterShowPrevMonthChange();
this._afterShowNextMonthChange();
this._renderCustomRules();
this._renderSelectedDates();
contentBox.setStyle("visibility", "inherit");
},
/**
* A rendering assist method that initializes the HTML for a single
* calendar pane.
* @method _initCalendarPane
* @param {Date} baseDate The date corresponding to the month of the given
* calendar pane.
* @param {String} pane_id The id of the pane, to be used as a prefix for
* element ids in the given pane.
* @private
*/
_initCalendarPane : function (baseDate, pane_id) {
var dateFormat = Y.Intl.get('datatype-date-format'),
weekDays = dateFormat.A,
// Get the first day of the week from the internationalization package, or else use Sunday as default.
firstday = this.get('strings.first_weekday') || 0,
// Compute the cutoff column of the masked calendar table, based on the start date and the first day of week.
cutoffCol = this._getCutoffColumn(baseDate, firstday),
// Compute the number of days in the month based on starting date
daysInMonth = ydate.daysInMonth(baseDate),
// Initialize the array of individual row HTML strings
row_array = ['','','','','',''],
// Initialize the partial templates object
partials = {},
shortWeekDays,
day,
row,
column,
date,
id_date,
calendar_day_class,
column_visibility,
output;
if (Y.Intl.getLang('calendar-base')) {
shortWeekDays = this.get('strings.very_short_weekdays');
} else {
shortWeekDays = dateFormat.a;
}
// Initialize the partial template for the weekday row cells.
partials.weekday_row = '';
// Populate the partial template for the weekday row cells with weekday names
for (day = firstday; day <= firstday + 6; day++) {
partials.weekday_row +=
substitute(CalendarBase.WEEKDAY_TEMPLATE, {
short_weekdayname: shortWeekDays[day%7],
weekdayname: weekDays[day%7]
});
}
// Populate the partial template for the weekday row container with the weekday row cells
partials.weekday_row_template = substitute(CalendarBase.WEEKDAY_ROW_TEMPLATE, partials);
// Populate the array of individual row HTML strings
for (row = 0; row <= 5; row++) {
for (column = 0; column <= 12; column++) {
// Compute the value of the date that needs to populate the cell
date = 7*row - 5 + column;
// Compose the value of the unique id of the current calendar cell
id_date = pane_id + "_" + column + "_" + date;
// Set the calendar day class to one of three possible values
calendar_day_class = CAL_DAY;
if (date < 1) {
calendar_day_class = CAL_PREVMONTH_DAY;
} else if (date > daysInMonth) {
calendar_day_class = CAL_NEXTMONTH_DAY;
}
// Cut off dates that fall before the first and after the last date of the month
if (date < 1 || date > daysInMonth) {
date = " ";
}
// Decide on whether a column in the masked table is visible or not based on the value of the cutoff column.
column_visibility = (column >= cutoffCol && column < (cutoffCol + 7)) ? '' : CAL_COL_HIDDEN;
// Substitute the values into the partial calendar day template and add it to the current row HTML string
row_array[row] += substitute (CalendarBase.CALDAY_TEMPLATE, {
day_content: date,
calendar_col_class: "calendar_col" + column,
calendar_col_visibility_class: column_visibility,
calendar_day_class: calendar_day_class,
calendar_day_id: id_date
});
}
}
// Instantiate the partial calendar pane body template
partials.body_template = '';
// Populate the body template with the rows templates
arrayEach (row_array, function (v) {
partials.body_template += substitute(CalendarBase.CALDAY_ROW_TEMPLATE, {calday_row: v});
});
// Populate the calendar grid id
partials.calendar_pane_id = pane_id;
// Populate the calendar pane tabindex
partials.calendar_pane_tabindex = this.get("tabIndex");
partials.pane_arialabel = ydate.format(baseDate, { format: "%B %Y" });
// Generate final output by substituting class names.
output = substitute(substitute (CalendarBase.CALENDAR_GRID_TEMPLATE, partials),
CalendarBase.CALENDAR_STRINGS);
// Store the initialized pane information
this._paneProperties[pane_id] = {cutoffCol: cutoffCol, daysInMonth: daysInMonth, paneDate: baseDate};
return output;
},
/**
* A rendering assist method that rerenders a specified calendar pane, based
* on a new Date.
* @method _rerenderCalendarPane
* @param {Date} newDate The date corresponding to the month of the given
* calendar pane.
* @param {Node} pane The node corresponding to the calendar pane to be rerenders.
* @private
*/
_rerenderCalendarPane : function (newDate, pane) {
// Get the first day of the week from the internationalization package, or else use Sunday as default.
var firstday = this.get('strings.first_weekday') || 0,
// Compute the cutoff column of the masked calendar table, based on the start date and the first day of week.
cutoffCol = this._getCutoffColumn(newDate, firstday),
// Compute the number of days in the month based on starting date
daysInMonth = ydate.daysInMonth(newDate),
// Get pane id for easier reference
paneId = pane.get("id"),
column,
currentColumn,
curCell;
// Hide the pane before making DOM changes to speed them up
pane.setStyle("visibility", "hidden");
pane.setAttribute("aria-label", ydate.format(newDate, {format:"%B %Y"}));
// Go through all columns, and flip their visibility setting based on whether they are within the unmasked range.
for (column = 0; column <= 12; column++) {
currentColumn = pane.all("." + "calendar_col" + column);
currentColumn.removeClass(CAL_COL_HIDDEN);
if (column < cutoffCol || column >= (cutoffCol + 7)) {
currentColumn.addClass(CAL_COL_HIDDEN);
} else {
// Clean up dates in visible columns to account for the correct number of days in a month
switch(column) {
case 0:
curCell = pane.one("#" + paneId + "_0_30");
if (daysInMonth >= 30) {
curCell.set("text", "30");
curCell.removeClass(CAL_NEXTMONTH_DAY).addClass(CAL_DAY);
} else {
curCell.setContent(" ");
curCell.removeClass(CAL_DAY).addClass(CAL_NEXTMONTH_DAY);
}
break;
case 1:
curCell = pane.one("#" + paneId + "_1_31");
if (daysInMonth >= 31) {
curCell.set("text", "31");
curCell.removeClass(CAL_NEXTMONTH_DAY).addClass(CAL_DAY);
} else {
curCell.setContent(" ");
curCell.removeClass(CAL_DAY).addClass(CAL_NEXTMONTH_DAY);
}
break;
case 6:
curCell = pane.one("#" + paneId + "_6_29");
if (daysInMonth >= 29) {
curCell.set("text", "29");
curCell.removeClass(CAL_NEXTMONTH_DAY).addClass(CAL_DAY);
} else {
curCell.setContent(" ");
curCell.removeClass(CAL_DAY).addClass(CAL_NEXTMONTH_DAY);
}
break;
case 7:
curCell = pane.one("#" + paneId + "_7_30");
if (daysInMonth >= 30) {
curCell.set("text", "30");
curCell.removeClass(CAL_NEXTMONTH_DAY).addClass(CAL_DAY);
} else {
curCell.setContent(" ");
curCell.removeClass(CAL_DAY).addClass(CAL_NEXTMONTH_DAY);
}
break;
case 8:
curCell = pane.one("#" + paneId + "_8_31");
if (daysInMonth >= 31) {
curCell.set("text", "31");
curCell.removeClass(CAL_NEXTMONTH_DAY).addClass(CAL_DAY);
} else {
curCell.setContent(" ");
curCell.removeClass(CAL_DAY).addClass(CAL_NEXTMONTH_DAY);
}
break;
}
}
}
// Update stored pane properties
this._paneProperties[paneId].cutoffCol = cutoffCol;
this._paneProperties[paneId].daysInMonth = daysInMonth;
this._paneProperties[paneId].paneDate = newDate;
// Bring the pane visibility back after all DOM changes are done
pane.setStyle("visibility", "inherit");
},
/**
* A rendering assist method that updates the calendar header based
* on a given date and potentially the provided headerRenderer.
* @method _updateCalendarHeader
* @param {Date} baseDate The date with which to update the calendar header.
* @private
*/
_updateCalendarHeader : function (baseDate) {
var headerString = "",
headerRenderer = this.get("headerRenderer");
if (Y.Lang.isString(headerRenderer)) {
headerString = ydate.format(baseDate, {format:headerRenderer});
} else if (headerRenderer instanceof Function) {
headerString = headerRenderer.call(this, baseDate);
}
return headerString;
},
/**
* A rendering assist method that initializes the calendar header HTML
* based on a given date and potentially the provided headerRenderer.
* @method _initCalendarHeader
* @param {Date} baseDate The date with which to initialize the calendar header.
* @private
*/
_initCalendarHeader : function (baseDate) {
return substitute(substitute(CalendarBase.HEADER_TEMPLATE, {
calheader: this._updateCalendarHeader(baseDate),
calendar_id: this._calendarId
}), CalendarBase.CALENDAR_STRINGS );
},
/**
* A rendering assist method that initializes the calendar HTML
* based on a given date.
* @method _initCalendarHTML
* @param {Date} baseDate The date with which to initialize the calendar.
* @private
*/
_initCalendarHTML : function (baseDate) {
// Instantiate the partials holder
var partials = {},
// Counter for iterative template replacement.
counter = 0,
singlePane,
output;
// Generate the template for the header
partials.header_template = this._initCalendarHeader(baseDate);
partials.calendar_id = this._calendarId;
partials.body_template = substitute(substitute (CalendarBase.CONTENT_TEMPLATE, partials),
CalendarBase.CALENDAR_STRINGS);
// Instantiate the iterative template replacer function
function paneReplacer () {
singlePane = this._initCalendarPane(ydate.addMonths(baseDate, counter), partials.calendar_id + "_pane_" + counter);
counter++;
return singlePane;
}
// Go through all occurrences of the calendar_grid_template token and replace it with an appropriate calendar grid.
output = partials.body_template.replace(/\{calendar_grid_template\}/g, Y.bind(paneReplacer, this));
// Update the paneNumber count
this._paneNumber = counter;
return output;
}
}, {
/**
* The CSS classnames for the calendar templates.
* @property CALENDAR_STRINGS
* @type Object
* @readOnly
* @protected
* @static
*/
CALENDAR_STRINGS: {
calendar_grid_class : CAL_GRID,
calendar_body_class : CAL_BODY,
calendar_hd_class : CAL_HD,
calendar_hd_label_class : CAL_HD_LABEL,
calendar_weekdayrow_class : CAL_WDAYROW,
calendar_weekday_class : CAL_WDAY,
calendar_row_class : CAL_ROW,
calendar_day_class : CAL_DAY,
calendar_dayanchor_class : CAL_ANCHOR,
calendar_pane_class : CAL_PANE,
calendar_right_grid_class : CAL_RIGHT_GRID,
calendar_left_grid_class : CAL_LEFT_GRID,
calendar_status_class : CAL_STATUS
},
/*
ARIA_STATUS_TEMPLATE: '<div role="status" aria-atomic="true" class="{calendar_status_class}"></div>',
AriaStatus : null,
updateStatus : function (statusString) {
if (!CalendarBase.AriaStatus) {
CalendarBase.AriaStatus = create(
substitute (CalendarBase.ARIA_STATUS_TEMPLATE,
CalendarBase.CALENDAR_STRINGS));
Y.one("body").append(CalendarBase.AriaStatus);
}
CalendarBase.AriaStatus.set("text", statusString);
},
*/
/**
* The main content template for calendar.
* @property CONTENT_TEMPLATE
* @type String
* @protected
* @static
*/
CONTENT_TEMPLATE: '<div class="yui3-g {calendar_pane_class}" id="{calendar_id}">' +
'{header_template}' +
'<div class="yui3-u-1">' +
'{calendar_grid_template}' +
'</div>' +
'</div>',
/**
* A single pane template for calendar (same as default CONTENT_TEMPLATE)
* @property ONE_PANE_TEMPLATE
* @type String
* @protected
* @readOnly
* @static
*/
ONE_PANE_TEMPLATE: '<div class="yui3-g {calendar_pane_class}" id="{calendar_id}">' +
'{header_template}' +
'<div class="yui3-u-1">' +
'{calendar_grid_template}' +
'</div>' +
'</div>',
/**
* A two pane template for calendar.
* @property TWO_PANE_TEMPLATE
* @type String
* @protected
* @readOnly
* @static
*/
TWO_PANE_TEMPLATE: '<div class="yui3-g {calendar_pane_class}" id="{calendar_id}">' +
'{header_template}' +
'<div class="yui3-u-1-2">'+
'<div class = "{calendar_left_grid_class}">' +
'{calendar_grid_template}' +
'</div>' +
'</div>' +
'<div class="yui3-u-1-2">' +
'<div class = "{calendar_right_grid_class}">' +
'{calendar_grid_template}' +
'</div>' +
'</div>' +
'</div>',
/**
* A three pane template for calendar.
* @property THREE_PANE_TEMPLATE
* @type String
* @protected
* @readOnly
* @static
*/
THREE_PANE_TEMPLATE: '<div class="yui3-g {calendar_pane_class}" id="{calendar_id}">' +
'{header_template}' +
'<div class="yui3-u-1-3">' +
'<div class="{calendar_left_grid_class}">' +
'{calendar_grid_template}' +
'</div>' +
'</div>' +
'<div class="yui3-u-1-3">' +
'{calendar_grid_template}' +
'</div>' +
'<div class="yui3-u-1-3">' +
'<div class="{calendar_right_grid_class}">' +
'{calendar_grid_template}' +
'</div>' +
'</div>' +
'</div>',
/**
* A template for the calendar grid.
* @property CALENDAR_GRID_TEMPLATE
* @type String
* @protected
* @static
*/
CALENDAR_GRID_TEMPLATE: '<table class="{calendar_grid_class}" id="{calendar_pane_id}" role="grid" aria-readonly="true" ' +
'aria-label="{pane_arialabel}" tabindex="{calendar_pane_tabindex}">' +
'<thead>' +
'{weekday_row_template}' +
'</thead>' +
'<tbody>' +
'{body_template}' +
'</tbody>' +
'</table>',
/**
* A template for the calendar header.
* @property HEADER_TEMPLATE
* @type String
* @protected
* @static
*/
HEADER_TEMPLATE: '<div class="yui3-g {calendar_hd_class}">' +
'<div class="yui3-u {calendar_hd_label_class}" id="{calendar_id}_header" aria-role="heading">' +
'{calheader}' +
'</div>' +
'</div>',
/**
* A template for the row of weekday names.
* @property WEEKDAY_ROW_TEMPLATE
* @type String
* @protected
* @static
*/
WEEKDAY_ROW_TEMPLATE: '<tr class="{calendar_weekdayrow_class}" role="row">' +
'{weekday_row}' +
'</tr>',
/**
* A template for a single row of calendar days.
* @property CALDAY_ROW_TEMPLATE
* @type String
* @protected
* @static
*/
CALDAY_ROW_TEMPLATE: '<tr class="{calendar_row_class}" role="row">' +
'{calday_row}' +
'</tr>',
/**
* A template for a single cell with a weekday name.
* @property WEEKDAY_TEMPLATE
* @type String
* @protected
* @static
*/
WEEKDAY_TEMPLATE: '<th class="{calendar_weekday_class}" role="columnheader" aria-label="{weekdayname}">{short_weekdayname}</th>',
/**
* A template for a single cell with a calendar day.
* @property CALDAY_TEMPLATE
* @type String
* @protected
* @static
*/
CALDAY_TEMPLATE: '<td class="{calendar_col_class} {calendar_day_class} {calendar_col_visibility_class}" id="{calendar_day_id}" ' +
'role="gridcell" tabindex="-1">' +
'{day_content}' +
'</td>',
/**
* The identity of the widget.
*
* @property NAME
* @type String
* @default 'calendarBase'
* @readOnly
* @protected
* @static
*/
NAME: 'calendarBase',
/**
* Static property used to define the default attribute configuration of
* the Widget.
*
* @property ATTRS
* @type {Object}
* @protected
* @static
*/
ATTRS: {
tabIndex: {
value: 1
},
/**
* The date corresponding to the current calendar view. Always
* normalized to the first of the month that contains the date
* at assignment time. Used as the first date visible in the
* calendar.
*
* @attribute date
* @type Date
* @default The first of the month containing today's date, as
* set on the end user's system.
*/
date: {
value: new Date(),
setter: function (val) {
var newDate = this._normalizeDate(val);
if (ydate.areEqual(newDate, this.get('date'))) {
return this.get('date');
} else {
return newDate;
}
}
},
/**
* A setting specifying whether to shows days from the previous
* month in the visible month's grid, if there are empty preceding
* cells available.
*
* @attribute showPrevMonth
* @type boolean
* @default false
*/
showPrevMonth: {
value: false
},
/**
* A setting specifying whether to shows days from the next
* month in the visible month's grid, if there are empty
* cells available at the end.
*
* @attribute showNextMonth
* @type boolean
* @default false
*/
showNextMonth: {
value: false
},
/**
* Strings and properties derived from the internationalization packages
* for the calendar.
*
* @attribute strings
* @type Object
* @protected
*/
strings : {
valueFn: function() { return Y.Intl.get("calendar-base"); }
},
/**
* Custom header renderer for the calendar.
*
* @attribute headerRenderer
* @type String | Function
*/
headerRenderer: {
value: "%B %Y"
},
/**
* The name of the rule which all enabled dates should match.
* Either disabledDatesRule or enabledDatesRule should be specified,
* or neither, but not both.
*
* @attribute enabledDatesRule
* @type String
* @default null
*/
enabledDatesRule: {
value: null
},
/**
* The name of the rule which all disabled dates should match.
* Either disabledDatesRule or enabledDatesRule should be specified,
* or neither, but not both.
*
* @attribute disabledDatesRule
* @type String
* @default null
*/
disabledDatesRule: {
value: null
},
/**
* A read-only attribute providing a list of currently selected dates.
*
* @attribute selectedDates
* @readOnly
* @type Array
*/
selectedDates : {
readOnly: true,
getter: function () {
return (this._getSelectedDatesList());
}
},
/**
* An object of the form {rules:Object, filterFunction:Function},
* providing set of rules and a custom rendering function for
* customizing specific calendar cells.
*
* @attribute customRenderer
* @type Object
* @default {}
*/
customRenderer : {
lazyAdd: false,
value: {},
setter: function (val) {
this._rules = val.rules;
this._filterFunction = val.filterFunction;
}
}
}
});
