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jquery.ui.datepicker.js
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jquery.ui.datepicker.js
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/*
* jQuery UI Datepicker @VERSION
*
* Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT or GPL Version 2 licenses.
* http://jquery.org/license
*
* http://docs.jquery.com/UI/Datepicker
*
* Depends:
* jquery.ui.core.js
*/
(function( $, undefined ) {
$.extend($.ui, { datepicker: { version: "@VERSION" } });
var PROP_NAME = 'datepicker';
var dpuuid = new Date().getTime();
var instActive;
/* Date picker manager.
Use the singleton instance of this class, $.datepicker, to interact with the date picker.
Settings for (groups of) date pickers are maintained in an instance object,
allowing multiple different settings on the same page. */
function Datepicker() {
this.debug = false; // Change this to true to start debugging
this._curInst = null; // The current instance in use
this._keyEvent = false; // If the last event was a key event
this._disabledInputs = []; // List of date picker inputs that have been disabled
this._datepickerShowing = false; // True if the popup picker is showing , false if not
this._inDialog = false; // True if showing within a "dialog", false if not
this._mainDivId = 'ui-datepicker-div'; // The ID of the main datepicker division
this._inlineClass = 'ui-datepicker-inline'; // The name of the inline marker class
this._appendClass = 'ui-datepicker-append'; // The name of the append marker class
this._triggerClass = 'ui-datepicker-trigger'; // The name of the trigger marker class
this._dialogClass = 'ui-datepicker-dialog'; // The name of the dialog marker class
this._disableClass = 'ui-datepicker-disabled'; // The name of the disabled covering marker class
this._unselectableClass = 'ui-datepicker-unselectable'; // The name of the unselectable cell marker class
this._currentClass = 'ui-datepicker-current-day'; // The name of the current day marker class
this._dayOverClass = 'ui-datepicker-days-cell-over'; // The name of the day hover marker class
this.regional = []; // Available regional settings, indexed by language code
this.regional[''] = { // Default regional settings
closeText: 'Done', // Display text for close link
prevText: 'Prev', // Display text for previous month link
nextText: 'Next', // Display text for next month link
currentText: 'Today', // Display text for current month link
monthNames: ['January','February','March','April','May','June',
'July','August','September','October','November','December'], // Names of months for drop-down and formatting
monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], // For formatting
dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], // For formatting
dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], // For formatting
dayNamesMin: ['Su','Mo','Tu','We','Th','Fr','Sa'], // Column headings for days starting at Sunday
weekHeader: 'Wk', // Column header for week of the year
dateFormat: 'mm/dd/yy', // See format options on parseDate
firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
isRTL: false, // True if right-to-left language, false if left-to-right
showMonthAfterYear: false, // True if the year select precedes month, false for month then year
yearSuffix: '' // Additional text to append to the year in the month headers
};
this._defaults = { // Global defaults for all the date picker instances
showOn: 'focus', // 'focus' for popup on focus,
// 'button' for trigger button, or 'both' for either
showAnim: 'fadeIn', // Name of jQuery animation for popup
showOptions: {}, // Options for enhanced animations
defaultDate: null, // Used when field is blank: actual date,
// +/-number for offset from today, null for today
appendText: '', // Display text following the input box, e.g. showing the format
buttonText: '...', // Text for trigger button
buttonImage: '', // URL for trigger button image
buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
hideIfNoPrevNext: false, // True to hide next/previous month links
// if not applicable, false to just disable them
navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
gotoCurrent: false, // True if today link goes back to current selection instead
changeMonth: false, // True if month can be selected directly, false if only prev/next
changeYear: false, // True if year can be selected directly, false if only prev/next
yearRange: 'c-10:c+10', // Range of years to display in drop-down,
// either relative to today's year (-nn:+nn), relative to currently displayed year
// (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
showOtherMonths: false, // True to show dates in other months, false to leave blank
selectOtherMonths: false, // True to allow selection of dates in other months, false for unselectable
showWeek: false, // True to show week of the year, false to not show it
calculateWeek: this.iso8601Week, // How to calculate the week of the year,
// takes a Date and returns the number of the week for it
shortYearCutoff: '+10', // Short year values < this are in the current century,
// > this are in the previous century,
// string value starting with '+' for current year + value
minDate: null, // The earliest selectable date, or null for no limit
maxDate: null, // The latest selectable date, or null for no limit
duration: 'fast', // Duration of display/closure
beforeShowDay: null, // Function that takes a date and returns an array with
// [0] = true if selectable, false if not, [1] = custom CSS class name(s) or '',
// [2] = cell title (optional), e.g. $.datepicker.noWeekends
beforeShow: null, // Function that takes an input field and
// returns a set of custom settings for the date picker
onSelect: null, // Define a callback function when a date is selected
onChangeMonthYear: null, // Define a callback function when the month or year is changed
onClose: null, // Define a callback function when the datepicker is closed
numberOfMonths: 1, // Number of months to show at a time
showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
stepMonths: 1, // Number of months to step back/forward
stepBigMonths: 12, // Number of months to step back/forward for the big links
altField: '', // Selector for an alternate field to store selected dates into
altFormat: '', // The date format to use for the alternate field
constrainInput: true, // The input is constrained by the current date format
showButtonPanel: false, // True to show button panel, false to not show it
autoSize: false // True to size the input for the date format, false to leave as is
};
$.extend(this._defaults, this.regional['']);
this.dpDiv = bindHover($('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'));
}
$.extend(Datepicker.prototype, {
/* Class name added to elements to indicate already configured with a date picker. */
markerClassName: 'hasDatepicker',
//Keep track of the maximum number of rows displayed (see #7043)
maxRows: 4,
/* Debug logging (if enabled). */
log: function () {
if (this.debug)
console.log.apply('', arguments);
},
// TODO rename to "widget" when switching to widget factory
_widgetDatepicker: function() {
return this.dpDiv;
},
/* Override the default settings for all instances of the date picker.
@param settings object - the new settings to use as defaults (anonymous object)
@return the manager object */
setDefaults: function(settings) {
extendRemove(this._defaults, settings || {});
return this;
},
/* Attach the date picker to a jQuery selection.
@param target element - the target input field or division or span
@param settings object - the new settings to use for this date picker instance (anonymous) */
_attachDatepicker: function(target, settings) {
// check for settings on the control itself - in namespace 'date:'
var inlineSettings = null;
for (var attrName in this._defaults) {
var attrValue = target.getAttribute('date:' + attrName);
if (attrValue) {
inlineSettings = inlineSettings || {};
try {
inlineSettings[attrName] = eval(attrValue);
} catch (err) {
inlineSettings[attrName] = attrValue;
}
}
}
var nodeName = target.nodeName.toLowerCase();
var inline = (nodeName == 'div' || nodeName == 'span');
if (!target.id) {
this.uuid += 1;
target.id = 'dp' + this.uuid;
}
var inst = this._newInst($(target), inline);
inst.settings = $.extend({}, settings || {}, inlineSettings || {});
if (nodeName == 'input') {
this._connectDatepicker(target, inst);
} else if (inline) {
this._inlineDatepicker(target, inst);
}
},
/* Create a new instance object. */
_newInst: function(target, inline) {
var id = target[0].id.replace(/([^A-Za-z0-9_-])/g, '\\\\$1'); // escape jQuery meta chars
return {id: id, input: target, // associated target
selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
drawMonth: 0, drawYear: 0, // month being drawn
inline: inline, // is datepicker inline or not
dpDiv: (!inline ? this.dpDiv : // presentation div
bindHover($('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>')))};
},
/* Attach the date picker to an input field. */
_connectDatepicker: function(target, inst) {
var input = $(target);
inst.append = $([]);
inst.trigger = $([]);
if (input.hasClass(this.markerClassName))
return;
this._attachments(input, inst);
input.addClass(this.markerClassName).keydown(this._doKeyDown).
keypress(this._doKeyPress).keyup(this._doKeyUp).
bind("setData.datepicker", function(event, key, value) {
inst.settings[key] = value;
}).bind("getData.datepicker", function(event, key) {
return this._get(inst, key);
});
this._autoSize(inst);
$.data(target, PROP_NAME, inst);
},
/* Make attachments based on settings. */
_attachments: function(input, inst) {
var appendText = this._get(inst, 'appendText');
var isRTL = this._get(inst, 'isRTL');
if (inst.append)
inst.append.remove();
if (appendText) {
inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');
input[isRTL ? 'before' : 'after'](inst.append);
}
input.unbind('focus', this._showDatepicker);
if (inst.trigger)
inst.trigger.remove();
var showOn = this._get(inst, 'showOn');
if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field
input.focus(this._showDatepicker);
if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked
var buttonText = this._get(inst, 'buttonText');
var buttonImage = this._get(inst, 'buttonImage');
inst.trigger = $(this._get(inst, 'buttonImageOnly') ?
$('<img/>').addClass(this._triggerClass).
attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
$('<button type="button"></button>').addClass(this._triggerClass).
html(buttonImage == '' ? buttonText : $('<img/>').attr(
{ src:buttonImage, alt:buttonText, title:buttonText })));
input[isRTL ? 'before' : 'after'](inst.trigger);
inst.trigger.click(function() {
if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
$.datepicker._hideDatepicker();
else
$.datepicker._showDatepicker(input[0]);
return false;
});
}
},
/* Apply the maximum length for the date format. */
_autoSize: function(inst) {
if (this._get(inst, 'autoSize') && !inst.inline) {
var date = new Date(2009, 12 - 1, 20); // Ensure double digits
var dateFormat = this._get(inst, 'dateFormat');
if (dateFormat.match(/[DM]/)) {
var findMax = function(names) {
var max = 0;
var maxI = 0;
for (var i = 0; i < names.length; i++) {
if (names[i].length > max) {
max = names[i].length;
maxI = i;
}
}
return maxI;
};
date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
'monthNames' : 'monthNamesShort'))));
date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
}
inst.input.attr('size', this._formatDate(inst, date).length);
}
},
/* Attach an inline date picker to a div. */
_inlineDatepicker: function(target, inst) {
var divSpan = $(target);
if (divSpan.hasClass(this.markerClassName))
return;
divSpan.addClass(this.markerClassName).append(inst.dpDiv).
bind("setData.datepicker", function(event, key, value){
inst.settings[key] = value;
}).bind("getData.datepicker", function(event, key){
return this._get(inst, key);
});
$.data(target, PROP_NAME, inst);
this._setDate(inst, this._getDefaultDate(inst), true);
this._updateDatepicker(inst);
this._updateAlternate(inst);
inst.dpDiv.show();
},
/* Pop-up the date picker in a "dialog" box.
@param input element - ignored
@param date string or Date - the initial date to display
@param onSelect function - the function to call when a date is selected
@param settings object - update the dialog date picker instance's settings (anonymous object)
@param pos int[2] - coordinates for the dialog's position within the screen or
event - with x/y coordinates or
leave empty for default (screen centre)
@return the manager object */
_dialogDatepicker: function(input, date, onSelect, settings, pos) {
var inst = this._dialogInst; // internal instance
if (!inst) {
this.uuid += 1;
var id = 'dp' + this.uuid;
this._dialogInput = $('<input type="text" id="' + id +
'" style="position: absolute; top: -100px; width: 0px; z-index: -10;"/>');
this._dialogInput.keydown(this._doKeyDown);
$('body').append(this._dialogInput);
inst = this._dialogInst = this._newInst(this._dialogInput, false);
inst.settings = {};
$.data(this._dialogInput[0], PROP_NAME, inst);
}
extendRemove(inst.settings, settings || {});
date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
this._dialogInput.val(date);
this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
if (!this._pos) {
var browserWidth = document.documentElement.clientWidth;
var browserHeight = document.documentElement.clientHeight;
var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
this._pos = // should use actual width/height below
[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
}
// move input on screen for focus, but hidden behind dialog
this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');
inst.settings.onSelect = onSelect;
this._inDialog = true;
this.dpDiv.addClass(this._dialogClass);
this._showDatepicker(this._dialogInput[0]);
if ($.blockUI)
$.blockUI(this.dpDiv);
$.data(this._dialogInput[0], PROP_NAME, inst);
return this;
},
/* Detach a datepicker from its control.
@param target element - the target input field or division or span */
_destroyDatepicker: function(target) {
var $target = $(target);
var inst = $.data(target, PROP_NAME);
if (!$target.hasClass(this.markerClassName)) {
return;
}
var nodeName = target.nodeName.toLowerCase();
$.removeData(target, PROP_NAME);
if (nodeName == 'input') {
inst.append.remove();
inst.trigger.remove();
$target.removeClass(this.markerClassName).
unbind('focus', this._showDatepicker).
unbind('keydown', this._doKeyDown).
unbind('keypress', this._doKeyPress).
unbind('keyup', this._doKeyUp);
} else if (nodeName == 'div' || nodeName == 'span')
$target.removeClass(this.markerClassName).empty();
},
/* Enable the date picker to a jQuery selection.
@param target element - the target input field or division or span */
_enableDatepicker: function(target) {
var $target = $(target);
var inst = $.data(target, PROP_NAME);
if (!$target.hasClass(this.markerClassName)) {
return;
}
var nodeName = target.nodeName.toLowerCase();
if (nodeName == 'input') {
target.disabled = false;
inst.trigger.filter('button').
each(function() { this.disabled = false; }).end().
filter('img').css({opacity: '1.0', cursor: ''});
}
else if (nodeName == 'div' || nodeName == 'span') {
var inline = $target.children('.' + this._inlineClass);
inline.children().removeClass('ui-state-disabled');
inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
removeAttr("disabled");
}
this._disabledInputs = $.map(this._disabledInputs,
function(value) { return (value == target ? null : value); }); // delete entry
},
/* Disable the date picker to a jQuery selection.
@param target element - the target input field or division or span */
_disableDatepicker: function(target) {
var $target = $(target);
var inst = $.data(target, PROP_NAME);
if (!$target.hasClass(this.markerClassName)) {
return;
}
var nodeName = target.nodeName.toLowerCase();
if (nodeName == 'input') {
target.disabled = true;
inst.trigger.filter('button').
each(function() { this.disabled = true; }).end().
filter('img').css({opacity: '0.5', cursor: 'default'});
}
else if (nodeName == 'div' || nodeName == 'span') {
var inline = $target.children('.' + this._inlineClass);
inline.children().addClass('ui-state-disabled');
inline.find("select.ui-datepicker-month, select.ui-datepicker-year").
attr("disabled", "disabled");
}
this._disabledInputs = $.map(this._disabledInputs,
function(value) { return (value == target ? null : value); }); // delete entry
this._disabledInputs[this._disabledInputs.length] = target;
},
/* Is the first field in a jQuery collection disabled as a datepicker?
@param target element - the target input field or division or span
@return boolean - true if disabled, false if enabled */
_isDisabledDatepicker: function(target) {
if (!target) {
return false;
}
for (var i = 0; i < this._disabledInputs.length; i++) {
if (this._disabledInputs[i] == target)
return true;
}
return false;
},
/* Retrieve the instance data for the target control.
@param target element - the target input field or division or span
@return object - the associated instance data
@throws error if a jQuery problem getting data */
_getInst: function(target) {
try {
return $.data(target, PROP_NAME);
}
catch (err) {
throw 'Missing instance data for this datepicker';
}
},
/* Update or retrieve the settings for a date picker attached to an input field or division.
@param target element - the target input field or division or span
@param name object - the new settings to update or
string - the name of the setting to change or retrieve,
when retrieving also 'all' for all instance settings or
'defaults' for all global defaults
@param value any - the new value for the setting
(omit if above is an object or to retrieve a value) */
_optionDatepicker: function(target, name, value) {
var inst = this._getInst(target);
if (arguments.length == 2 && typeof name == 'string') {
return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
(inst ? (name == 'all' ? $.extend({}, inst.settings) :
this._get(inst, name)) : null));
}
var settings = name || {};
if (typeof name == 'string') {
settings = {};
settings[name] = value;
}
if (inst) {
if (this._curInst == inst) {
this._hideDatepicker();
}
var date = this._getDateDatepicker(target, true);
var minDate = this._getMinMaxDate(inst, 'min');
var maxDate = this._getMinMaxDate(inst, 'max');
extendRemove(inst.settings, settings);
// reformat the old minDate/maxDate values if dateFormat changes and a new minDate/maxDate isn't provided
if (minDate !== null && settings['dateFormat'] !== undefined && settings['minDate'] === undefined)
inst.settings.minDate = this._formatDate(inst, minDate);
if (maxDate !== null && settings['dateFormat'] !== undefined && settings['maxDate'] === undefined)
inst.settings.maxDate = this._formatDate(inst, maxDate);
this._attachments($(target), inst);
this._autoSize(inst);
this._setDate(inst, date);
this._updateAlternate(inst);
this._updateDatepicker(inst);
}
},
// change method deprecated
_changeDatepicker: function(target, name, value) {
this._optionDatepicker(target, name, value);
},
/* Redraw the date picker attached to an input field or division.
@param target element - the target input field or division or span */
_refreshDatepicker: function(target) {
var inst = this._getInst(target);
if (inst) {
this._updateDatepicker(inst);
}
},
/* Set the dates for a jQuery selection.
@param target element - the target input field or division or span
@param date Date - the new date */
_setDateDatepicker: function(target, date) {
var inst = this._getInst(target);
if (inst) {
this._setDate(inst, date);
this._updateDatepicker(inst);
this._updateAlternate(inst);
}
},
/* Get the date(s) for the first entry in a jQuery selection.
@param target element - the target input field or division or span
@param noDefault boolean - true if no default date is to be used
@return Date - the current date */
_getDateDatepicker: function(target, noDefault) {
var inst = this._getInst(target);
if (inst && !inst.inline)
this._setDateFromField(inst, noDefault);
return (inst ? this._getDate(inst) : null);
},
/* Handle keystrokes. */
_doKeyDown: function(event) {
var inst = $.datepicker._getInst(event.target);
var handled = true;
var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
inst._keyEvent = true;
if ($.datepicker._datepickerShowing)
switch (event.keyCode) {
case 9: $.datepicker._hideDatepicker();
handled = false;
break; // hide on tab out
case 13: var sel = $('td.' + $.datepicker._dayOverClass + ':not(.' +
$.datepicker._currentClass + ')', inst.dpDiv);
if (sel[0])
$.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
else
$.datepicker._hideDatepicker();
return false; // don't submit the form
break; // select the value on enter
case 27: $.datepicker._hideDatepicker();
break; // hide on escape
case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
-$.datepicker._get(inst, 'stepBigMonths') :
-$.datepicker._get(inst, 'stepMonths')), 'M');
break; // previous month/year on page up/+ ctrl
case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
+$.datepicker._get(inst, 'stepBigMonths') :
+$.datepicker._get(inst, 'stepMonths')), 'M');
break; // next month/year on page down/+ ctrl
case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);
handled = event.ctrlKey || event.metaKey;
break; // clear on ctrl or command +end
case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);
handled = event.ctrlKey || event.metaKey;
break; // current on ctrl or command +home
case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
handled = event.ctrlKey || event.metaKey;
// -1 day on ctrl or command +left
if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
-$.datepicker._get(inst, 'stepBigMonths') :
-$.datepicker._get(inst, 'stepMonths')), 'M');
// next month/year on alt +left on Mac
break;
case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
handled = event.ctrlKey || event.metaKey;
break; // -1 week on ctrl or command +up
case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
handled = event.ctrlKey || event.metaKey;
// +1 day on ctrl or command +right
if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
+$.datepicker._get(inst, 'stepBigMonths') :
+$.datepicker._get(inst, 'stepMonths')), 'M');
// next month/year on alt +right
break;
case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
handled = event.ctrlKey || event.metaKey;
break; // +1 week on ctrl or command +down
default: handled = false;
}
else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
$.datepicker._showDatepicker(this);
else {
handled = false;
}
if (handled) {
event.preventDefault();
event.stopPropagation();
}
},
/* Filter entered characters - based on date format. */
_doKeyPress: function(event) {
var inst = $.datepicker._getInst(event.target);
if ($.datepicker._get(inst, 'constrainInput')) {
var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
return event.ctrlKey || event.metaKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
}
},
/* Synchronise manual entry and field/alternate field. */
_doKeyUp: function(event) {
var inst = $.datepicker._getInst(event.target);
if (inst.input.val() != inst.lastVal) {
try {
var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
(inst.input ? inst.input.val() : null),
$.datepicker._getFormatConfig(inst));
if (date) { // only if valid
$.datepicker._setDateFromField(inst);
$.datepicker._updateAlternate(inst);
$.datepicker._updateDatepicker(inst);
}
}
catch (event) {
$.datepicker.log(event);
}
}
return true;
},
/* Pop-up the date picker for a given input field.
@param input element - the input field attached to the date picker or
event - if triggered by focus */
_showDatepicker: function(input) {
input = input.target || input;
if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
input = $('input', input.parentNode)[0];
if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
return;
var inst = $.datepicker._getInst(input);
if ($.datepicker._curInst && $.datepicker._curInst != inst) {
if ( $.datepicker._datepickerShowing ) {
$.datepicker._triggerOnClose($.datepicker._curInst);
}
$.datepicker._curInst.dpDiv.stop(true, true);
}
var beforeShow = $.datepicker._get(inst, 'beforeShow');
extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
inst.lastVal = null;
$.datepicker._lastInput = input;
$.datepicker._setDateFromField(inst);
if ($.datepicker._inDialog) // hide cursor
input.value = '';
if (!$.datepicker._pos) { // position below input
$.datepicker._pos = $.datepicker._findPos(input);
$.datepicker._pos[1] += input.offsetHeight; // add the height
}
var isFixed = false;
$(input).parents().each(function() {
isFixed |= $(this).css('position') == 'fixed';
return !isFixed;
});
if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled
$.datepicker._pos[0] -= document.documentElement.scrollLeft;
$.datepicker._pos[1] -= document.documentElement.scrollTop;
}
var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
$.datepicker._pos = null;
//to avoid flashes on Firefox
inst.dpDiv.empty();
// determine sizing offscreen
inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
$.datepicker._updateDatepicker(inst);
// fix width for dynamic number of date pickers
// and adjust position before showing
offset = $.datepicker._checkOffset(inst, offset, isFixed);
inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
left: offset.left + 'px', top: offset.top + 'px'});
if (!inst.inline) {
var showAnim = $.datepicker._get(inst, 'showAnim');
var duration = $.datepicker._get(inst, 'duration');
var postProcess = function() {
var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
if( !! cover.length ){
var borders = $.datepicker._getBorders(inst.dpDiv);
cover.css({left: -borders[0], top: -borders[1],
width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
}
};
inst.dpDiv.zIndex($(input).zIndex()+1);
$.datepicker._datepickerShowing = true;
// DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) )
inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
else
inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);
if (!showAnim || !duration)
postProcess();
if (inst.input.is(':visible') && !inst.input.is(':disabled'))
inst.input.focus();
$.datepicker._curInst = inst;
}
},
/* Generate the date picker content. */
_updateDatepicker: function(inst) {
var self = this;
self.maxRows = 4; //Reset the max number of rows being displayed (see #7043)
var borders = $.datepicker._getBorders(inst.dpDiv);
instActive = inst; // for delegate hover events
inst.dpDiv.empty().append(this._generateHTML(inst));
var cover = inst.dpDiv.find('iframe.ui-datepicker-cover'); // IE6- only
if( !!cover.length ){ //avoid call to outerXXXX() when not in IE6
cover.css({left: -borders[0], top: -borders[1], width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
}
inst.dpDiv.find('.' + this._dayOverClass + ' a').mouseover();
var numMonths = this._getNumberOfMonths(inst);
var cols = numMonths[1];
var width = 17;
inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
if (cols > 1)
inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
'Class']('ui-datepicker-multi');
inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
'Class']('ui-datepicker-rtl');
if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
// #6694 - don't focus the input if it's already focused
// this breaks the change event in IE
inst.input.is(':visible') && !inst.input.is(':disabled') && inst.input[0] != document.activeElement)
inst.input.focus();
// deffered render of the years select (to avoid flashes on Firefox)
if( inst.yearshtml ){
var origyearshtml = inst.yearshtml;
setTimeout(function(){
//assure that inst.yearshtml didn't change.
if( origyearshtml === inst.yearshtml && inst.yearshtml ){
inst.dpDiv.find('select.ui-datepicker-year:first').replaceWith(inst.yearshtml);
}
origyearshtml = inst.yearshtml = null;
}, 0);
}
},
/* Retrieve the size of left and top borders for an element.
@param elem (jQuery object) the element of interest
@return (number[2]) the left and top borders */
_getBorders: function(elem) {
var convert = function(value) {
return {thin: 1, medium: 2, thick: 3}[value] || value;
};
return [parseFloat(convert(elem.css('border-left-width'))),
parseFloat(convert(elem.css('border-top-width')))];
},
/* Check positioning to remain on screen. */
_checkOffset: function(inst, offset, isFixed) {
var dpWidth = inst.dpDiv.outerWidth();
var dpHeight = inst.dpDiv.outerHeight();
var inputWidth = inst.input ? inst.input.outerWidth() : 0;
var inputHeight = inst.input ? inst.input.outerHeight() : 0;
var viewWidth = document.documentElement.clientWidth + $(document).scrollLeft();
var viewHeight = document.documentElement.clientHeight + $(document).scrollTop();
offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
// now check if datepicker is showing outside window viewport - move to a better place if so.
offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
Math.abs(offset.left + dpWidth - viewWidth) : 0);
offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
Math.abs(dpHeight + inputHeight) : 0);
return offset;
},
/* Find an object's position on the screen. */
_findPos: function(obj) {
var inst = this._getInst(obj);
var isRTL = this._get(inst, 'isRTL');
while (obj && (obj.type == 'hidden' || obj.nodeType != 1 || $.expr.filters.hidden(obj))) {
obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];
}
var position = $(obj).offset();
return [position.left, position.top];
},
/* Trigger custom callback of onClose. */
_triggerOnClose: function(inst) {
var onClose = this._get(inst, 'onClose');
if (onClose)
onClose.apply((inst.input ? inst.input[0] : null),
[(inst.input ? inst.input.val() : ''), inst]);
},
/* Hide the date picker from view.
@param input element - the input field attached to the date picker */
_hideDatepicker: function(input) {
var inst = this._curInst;
if (!inst || (input && inst != $.data(input, PROP_NAME)))
return;
if (this._datepickerShowing) {
var showAnim = this._get(inst, 'showAnim');
var duration = this._get(inst, 'duration');
var postProcess = function() {
$.datepicker._tidyDialog(inst);
this._curInst = null;
};
// DEPRECATED: after BC for 1.8.x $.effects[ showAnim ] is not needed
if ( $.effects && ( $.effects.effect[ showAnim ] || $.effects[ showAnim ] ) )
inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
else
inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
(showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
if (!showAnim)
postProcess();
$.datepicker._triggerOnClose(inst);
this._datepickerShowing = false;
this._lastInput = null;
if (this._inDialog) {
this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
if ($.blockUI) {
$.unblockUI();
$('body').append(this.dpDiv);
}
}
this._inDialog = false;
}
},
/* Tidy up after a dialog display. */
_tidyDialog: function(inst) {
inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
},
/* Close date picker if clicked elsewhere. */
_checkExternalClick: function(event) {
if (!$.datepicker._curInst)
return;
var $target = $(event.target);
if ($target[0].id != $.datepicker._mainDivId &&
$target.parents('#' + $.datepicker._mainDivId).length == 0 &&
!$target.hasClass($.datepicker.markerClassName) &&
!$target.hasClass($.datepicker._triggerClass) &&
$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
$.datepicker._hideDatepicker();
},
/* Adjust one of the date sub-fields. */
_adjustDate: function(id, offset, period) {
var target = $(id);
var inst = this._getInst(target[0]);
if (this._isDisabledDatepicker(target[0])) {
return;
}
this._adjustInstDate(inst, offset +
(period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
period);
this._updateDatepicker(inst);
},
/* Action for current link. */
_gotoToday: function(id) {
var target = $(id);
var inst = this._getInst(target[0]);
if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
inst.selectedDay = inst.currentDay;
inst.drawMonth = inst.selectedMonth = inst.currentMonth;
inst.drawYear = inst.selectedYear = inst.currentYear;
}
else {
var date = new Date();
inst.selectedDay = date.getDate();
inst.drawMonth = inst.selectedMonth = date.getMonth();
inst.drawYear = inst.selectedYear = date.getFullYear();
}
this._notifyChange(inst);
this._adjustDate(target);
},
/* Action for selecting a new month/year. */
_selectMonthYear: function(id, select, period) {
var target = $(id);
var inst = this._getInst(target[0]);
inst._selectingMonthYear = false;
inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
parseInt(select.options[select.selectedIndex].value,10);
this._notifyChange(inst);
this._adjustDate(target);
},
/* Restore input focus after not changing month/year. */
_clickMonthYear: function(id) {
var target = $(id);
var inst = this._getInst(target[0]);
if (inst.input && inst._selectingMonthYear) {
setTimeout(function() {
inst.input.focus();
}, 0);
}
inst._selectingMonthYear = !inst._selectingMonthYear;
},
/* Action for selecting a day. */
_selectDay: function(id, month, year, td) {
var target = $(id);
if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
return;
}
var inst = this._getInst(target[0]);
inst.selectedDay = inst.currentDay = $('a', td).html();
inst.selectedMonth = inst.currentMonth = month;
inst.selectedYear = inst.currentYear = year;
this._selectDate(id, this._formatDate(inst,
inst.currentDay, inst.currentMonth, inst.currentYear));
},
/* Erase the input field and hide the date picker. */
_clearDate: function(id) {
var target = $(id);
var inst = this._getInst(target[0]);
this._selectDate(target, '');
},
/* Update the input field with the selected date. */
_selectDate: function(id, dateStr) {
var target = $(id);
var inst = this._getInst(target[0]);
dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
if (inst.input)
inst.input.val(dateStr);
this._updateAlternate(inst);
var onSelect = this._get(inst, 'onSelect');
if (onSelect)
onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]); // trigger custom callback
else if (inst.input)
inst.input.trigger('change'); // fire the change event
if (inst.inline)
this._updateDatepicker(inst);
else {
this._hideDatepicker();
this._lastInput = inst.input[0];
if (typeof(inst.input[0]) != 'object')
inst.input.focus(); // restore focus
this._lastInput = null;
}
},
/* Update any alternate field to synchronise with the main field. */
_updateAlternate: function(inst) {
var altField = this._get(inst, 'altField');
if (altField) { // update alternate field too
var altFormat = this._get(inst, 'altFormat') || this._get(inst, 'dateFormat');
var date = this._getDate(inst);
var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
$(altField).each(function() { $(this).val(dateStr); });
}
},
/* Set as beforeShowDay function to prevent selection of weekends.
@param date Date - the date to customise
@return [boolean, string] - is this date selectable?, what is its CSS class? */
noWeekends: function(date) {
var day = date.getDay();
return [(day > 0 && day < 6), ''];
},
/* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
@param date Date - the date to get the week for
@return number - the number of the week within the year that contains this date */
iso8601Week: function(date) {
var checkDate = new Date(date.getTime());
// Find Thursday of this week starting on Monday
checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
var time = checkDate.getTime();
checkDate.setMonth(0); // Compare with Jan 1
checkDate.setDate(1);
return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
},
/* Parse a string value into a date object.
See formatDate below for the possible formats.
@param format string - the expected format of the date
@param value string - the date in the above format
@param settings Object - attributes include:
shortYearCutoff number - the cutoff year for determining the century (optional)
dayNamesShort string[7] - abbreviated names of the days from Sunday (optional)
dayNames string[7] - names of the days from Sunday (optional)
monthNamesShort string[12] - abbreviated names of the months (optional)
monthNames string[12] - names of the months (optional)
@return Date - the extracted date value or null if value is blank */
parseDate: function (format, value, settings) {
if (format == null || value == null)
throw 'Invalid arguments';
value = (typeof value == 'object' ? value.toString() : value + '');
if (value == '')
return null;
var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
var year = -1;
var month = -1;
var day = -1;
var doy = -1;
var literal = false;
// Check whether a format character is doubled
var lookAhead = function(match) {
var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
if (matches)
iFormat++;
return matches;
};