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ui.datepicker.js
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1707 lines (1629 loc) · 72.2 KB
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/*
* jQuery UI Datepicker @VERSION
*
* Copyright (c) 2006, 2007, 2008 Marc Grabanski
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Datepicker
*
* Depends:
* ui.core.js
*
* Marc Grabanski (m@marcgrabanski.com) and Keith Wood (kbwood@virginbroadband.com.au).
*/
(function($) { // hide the namespace
var PROP_NAME = 'datepicker';
/* 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._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._promptClass = 'ui-datepicker-prompt'; // The name of the dialog prompt 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.regional = []; // Available regional settings, indexed by language code
this.regional[''] = { // Default regional settings
clearText: �
9927
39;Clear', // Display text for clear link
clearStatus: 'Erase the current date', // Status text for clear link
closeText: 'Close', // Display text for close link
closeStatus: 'Close without change', // Status text for close link
prevText: '<Prev', // Display text for previous month link
prevStatus: 'Show the previous month', // Status text for previous month link
prevBigText: '<<', // Display text for previous year link
prevBigStatus: 'Show the previous year', // Status text for previous year link
nextText: 'Next>', // Display text for next month link
nextStatus: 'Show the next month', // Status text for next month link
nextBigText: '>>', // Display text for next year link
nextBigStatus: 'Show the next year', // Status text for next year link
currentText: 'Today', // Display text for current month link
currentStatus: 'Show the current month', // Status 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
monthStatus: 'Show a different month', // Status text for selecting a month
yearStatus: 'Show a different year', // Status text for selecting a year
weekHeader: 'Wk', // Header for the week of the year column
weekStatus: 'Week of the year', // Status text for the week of the year column
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
dayStatus: 'Set DD as first week day', // Status text for the day of the week selection
dateStatus: 'Select DD, M d', // Status text for the date selection
dateFormat: 'mm/dd/yy', // See format options on parseDate
firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
initStatus: 'Select a date', // Initial Status text on opening
isRTL: false // True if right-to-left language, false if left-to-right
};
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: 'show', // 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
closeAtTop: true, // True to have the clear/close at the top,
// false to have them at the bottom
mandatory: false, // True to hide the Clear link, false to include it
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
showBigPrevNext: false, // True to show big prev/next links
gotoCurrent: false, // True if today link goes back to current selection instead
changeMonth: true, // True if month can be selected directly, false if only prev/next
changeYear: true, // True if year can be selected directly, false if only prev/next
showMonthAfterYear: false, // True if the year select precedes month, false for month then year
yearRange: '-10:+10', // Range of years to display in drop-down,
// either relative to current year (-nn:+nn) or absolute (nnnn:nnnn)
changeFirstDay: true, // True to click on day name to change, false to remain as set
highlightWeek: false, // True to highlight the selected week
showOtherMonths: false, // True to show dates in other months, false to leave blank
showWeeks: false, // True to show week of the year, false to omit
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
showStatus: false, // True to show status bar at bottom, false to not show it
statusForDate: this.dateStatus, // Function to provide status text for a date -
// takes date and instance as parameters, returns display text
minDate: null, // The earliest selectable date, or null for no limit
maxDate: null, // The latest selectable date, or null for no limit
duration: 'normal', // 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
rangeSelect: false, // Allows for selecting a date range on one date picker
rangeSeparator: ' - ', // Text between two dates in a range
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
};
$.extend(this._defaults, this.regional['']);
this.dpDiv = $('<div id="' + this._mainDivId + '" style="display: none;"></div>');
}
$.extend(Datepicker.prototype, {
/* Class name added to elements to indicate already configured with a date picker. */
markerClassName: 'hasDatepicker',
/* Debug logging (if enabled). */
log: function () {
if (this.debug)
console.log.apply('', arguments);
},
/* Override the default settings for all instances of the date picker.
@param settings object - the new settings to use as defaults (anonymous object)
@return the manager object */
setDefaults: function(settings) {
extendRemove(this._defaults, settings || {});
return this;
},
/* Attach the date picker to a jQuery selection.
@param target element - the target input field or division or span
@param settings object - the new settings to use for this date picker instance (anonymous) */
_attachDatepicker: function(target, settings) {
// check for settings on the control itself - in namespace 'date:'
var inlineSettings = null;
for (attrName in this._defaults) {
var attrValue = target.getAttribute('date:' + attrName);
if (attrValue) {
inlineSettings = inlineSettings || {};
try {
inlineSettings[attrName] = eval(attrValue);
} catch (err) {
inlineSettings[attrName] = attrValue;
}
}
}
var nodeName = target.nodeName.toLowerCase();
var inline = (nodeName == 'div' || nodeName == 'span');
if (!target.id)
target.id = 'dp' + (++this.uuid);
var inst = this._newInst($(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(/([:\[\]\.])/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
$('<div class="' + this._inlineClass + '"></div>'))};
},
/* Attach the date picker to an input field. */
_connectDatepicker: function(target, inst) {
var input = $(target);
if (input.hasClass(this.markerClassName))
return;
var appendText = this._get(inst, 'appendText');
var isRTL = this._get(inst, 'isRTL');
if (appendText)
input[isRTL ? 'before' : 'after']('<span class="' + this._appendClass + '">' + appendText + '</span>');
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');
var 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 : $('<img/>').attr(
{ src:buttonImage, alt:buttonText, title:buttonText })));
input[isRTL ? 'before' : 'after'](trigger);
trigger.click(function() {
if ($.datepicker._datepickerShowing && $.datepicker._lastInput == target)
$.datepicker._hideDatepicker();
else
$.datepicker._showDatepicker(target);
return false;
});
}
input.addClass(this.markerClassName).keydown(this._doKeyDown).keypress(this._doKeyPress).
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);
},
/* 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));
this._updateDatepicker(inst);
},
/* Tidy up after displaying the date picker. */
_inlineShow: function(inst) {
var numMonths = this._getNumberOfMonths(inst); // fix width for dynamic number of date pickers
inst.dpDiv.width(numMonths[1] * $('.ui-datepicker', inst.dpDiv[0]).width());
},
/* Pop-up the date picker in a "dialog" box.
@param input element - ignored
@param dateText string - the initial date to display (in the current format)
@param onSelect function - the function(dateText) 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, dateText, onSelect, settings, pos) {
var inst = this._dialogInst; // internal instance
if (!inst) {
var id = 'dp' + (++this.uuid);
this._dialogInput = $('<input type="text" id="' + id +
'" size="1" style="position: absolute; top: -100px;"/>');
this._dialogInput.keydown(this._doKeyDown);
$('body').append(this._dialogInput);
inst = this._dialogInst = this._newInst(this._dialogInput, false);
inst.settings = {};
$.data(this._dialogInput[0], PROP_NAME, inst);
}
extendRemove(inst.settings, settings || {});
this._dialogInput.val(dateText);
this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
if (!this._pos) {
var browserWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
var browserHeight = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
this._pos = // should use actual width/height below
[(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
}
// move input on screen for focus, but hidden behind dialog
this._dialogInput.css('left', this._pos[0] + 'px').css('top', this._pos[1] + 'px');
inst.settings.onSelect = onSelect;
this._inDialog = true;
this.dpDiv.addClass(this._dialogClass);
this._showDatepicker(this._dialogInput[0]);
if ($.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 = $(target);
if (!$target.hasClass(this.markerClassName)) {
return;
}
var nodeName = target.nodeName.toLowerCase();
$.removeData(target, PROP_NAME);
if (nodeName == 'input') {
$target.siblings('.' + this._appendClass).remove().end().
siblings('.' + this._triggerClass).remove().end().
removeClass(this.markerClassName).
unbind('focus', this._showDatepicker).
unbind('keydown', this._doKeyDown).
unbind('keypress', this._doKeyPress);
} 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 = $(target);
if (!$target.hasClass(this.markerClassName)) {
return;
}
var nodeName = target.nodeName.toLowerCase();
if (nodeName == 'input') {
target.disabled = false;
$target.siblings('button.' + this._triggerClass).
each(function() { this.disabled = false; }).end().
siblings('img.' + this._triggerClass).
css({opacity: '1.0', cursor: ''});
}
else if (nodeName == 'div' || nodeName == 'span') {
$target.children('.' + this._disableClass).remove();
}
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 = $(target);
if (!$target.hasClass(this.markerClassName)) {
return;
}
var nodeName = target.nodeName.toLowerCase();
if (nodeName == 'input') {
target.disabled = true;
$target.siblings('button.' + this._triggerClass).
each(function() { this.disabled = true; }).end().
siblings('img.' + this._triggerClass).
css({opacity: '0.5', cursor: 'default'});
}
else if (nodeName == 'div' || nodeName == 'span') {
var inline = $target.children('.' + this._inlineClass);
var offset = inline.offset();
var relOffset = {left: 0, top: 0};
inline.parents().each(function() {
if ($(this).css('position') == 'relative') {
relOffset = $(this).offset();
return false;
}
});
$target.prepend('<div class="' + this._disableClass + '" style="' +
($.browser.msie ? 'background-color: transparent; ' : '') +
'width: ' + inline.width() + 'px; height: ' + inline.height() +
'px; left: ' + (offset.left - relOffset.left) +
'px; top: ' + (offset.top - relOffset.top) + 'px;"></div>');
}
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 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
@param value any - the new value for the setting (omit if above is an object) */
_optionDatepicker: function(target, name, value) {
var settings = name || {};
if (typeof name == 'string') {
settings = {};
settings[name] = value;
}
var inst = this._getInst(target);
if (inst) {
if (this._curInst == inst) {
this._hideDatepicker(null);
}
extendRemove(inst.settings, settings);
var date = new Date();
extendRemove(inst, {rangeStart: null, // start of range
endDay: null, endMonth: null, endYear: null, // end of range
selectedDay: date.getDate(), selectedMonth: date.getMonth(),
selectedYear: date.getFullYear(), // starting point
currentDay: date.getDate(), currentMonth: date.getMonth(),
currentYear: date.getFullYear(), // current selection
drawMonth: date.getMonth(), drawYear: date.getFullYear()}); // month being drawn
this._updateDatepicker(inst);
}
},
// change method deprecated
_changeDatepicker: this._optionDatepicker,
/* 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
@param endDate Date - the new end date for a range (optional) */
_setDateDatepicker: function(target, date, endDate) {
var inst = this._getInst(target);
if (inst) {
this._setDate(inst, date, endDate);
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
@return Date - the current date or
Date[2] - the current dates for a range */
_getDateDatepicker: function(target) {
var inst = this._getInst(target);
if (inst && !inst.inline)
this._setDateFromField(inst);
return (inst ? this._getDate(inst) : null);
},
/* Handle keystrokes. */
_doKeyDown: function(e) {
var inst = $.datepicker._getInst(e.target);
var handled = true;
if ($.datepicker._datepickerShowing)
switch (e.keyCode) {
case 9: $.datepicker._hideDatepicker(null, '');
break; // hide on tab out
case 13: $.datepicker._selectDay(e.target, inst.selectedMonth, inst.selectedYear,
$('td.ui-datepicker-days-cell-over', inst.dpDiv)[0]);
return false; // don't submit the form
break; // select the value on enter
case 27: $.datepicker._hideDatepicker(null, $.datepicker._get(inst, 'duration'));
break; // hide on escape
case 33: $.datepicker._adjustDate(e.target, (e.ctrlKey ?
-$.datepicker._get(inst, 'stepBigMonths') :
-$.datepicker._get(inst, 'stepMonths')), 'M');
break; // previous month/year on page up/+ ctrl
case 34: $.datepicker._adjustDate(e.target, (e.ctrlKey ?
+$.datepicker._get(inst, 'stepBigMonths') :
+$.datepicker._get(inst, 'stepMonths')), 'M');
break; // next month/year on page down/+ ctrl
case 35: if (e.ctrlKey) $.datepicker._clearDate(e.target);
handled = e.ctrlKey;
break; // clear on ctrl+end
case 36: if (e.ctrlKey) $.datepicker._gotoToday(e.target);
handled = e.ctrlKey;
break; // current on ctrl+home
case 37: if (e.ctrlKey) $.datepicker._adjustDate(e.target, -1, 'D');
handled = e.ctrlKey;
break; // -1 day on ctrl+left
case 38: if (e.ctrlKey) $.datepicker._adjustDate(e.target, -7, 'D');
handled = e.ctrlKey;
break; // -1 week on ctrl+up
case 39: if (e.ctrlKey) $.datepicker._adjustDate(e.target, +1, 'D');
handled = e.ctrlKey;
break; // +1 day on ctrl+right
case 40: if (e.ctrlKey) $.datepicker._adjustDate(e.target, +7, 'D');
handled = e.ctrlKey;
break; // +1 week on ctrl+down
default: handled = false;
}
else if (e.keyCode == 36 && e.ctrlKey) // display the date picker on ctrl+home
$.datepicker._showDatepicker(this);
else
handled = false;
if (handled) {
e.preventDefault();
e.stopPropagation();
}
},
/* Filter entered characters - based on date format. */
_doKeyPress: function(e) {
var inst = $.datepicker._getInst(e.target);
if ($.datepicker._get(inst, 'constrainInput')) {
var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
var chr = String.fromCharCode(e.charCode == undefined ? e.keyCode : e.charCode);
return e.ctrlKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
}
},
/* 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);
var beforeShow = $.datepicker._get(inst, 'beforeShow');
extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
$.datepicker._hideDatepicker(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;
inst.rangeStart = null;
// determine sizing offscreen
inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
$.datepicker._updateDatepicker(inst);
// fix width for dynamic number of date pickers
inst.dpDiv.width($.datepicker._getNumberOfMonths(inst)[1] *
$('.ui-datepicker', inst.dpDiv[0])[0].offsetWidth);
// 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') || 'show';
var duration = $.datepicker._get(inst, 'duration');
var postProcess = function() {
$.datepicker._datepickerShowing = true;
if ($.browser.msie && parseInt($.browser.version,10) < 7) // fix IE < 7 select problems
$('iframe.ui-datepicker-cover').css({width: inst.dpDiv.width() + 4,
height: inst.dpDiv.height() + 4});
};
if ($.effects && $.effects[showAnim])
inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
else
inst.dpDiv[showAnim](duration, postProcess);
if (duration == '')
postProcess();
if (inst.input[0].type != 'hidden')
inst.input[0].focus();
$.datepicker._curInst = inst;
}
},
/* Generate the date picker content. */
_updateDatepicker: function(inst) {
var dims = {width: inst.dpDiv.width() + 4,
height: inst.dpDiv.height() + 4};
inst.dpDiv.empty().append(this._generateHTML(inst)).
find('iframe.ui-datepicker-cover').
css({width: dims.width, height: dims.height});
var numMonths = this._getNumberOfMonths(inst);
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.input && inst.input[0].type != 'hidden' && inst == $.datepicker._curInst)
$(inst.input[0]).focus();
},
/* Check positioning to remain on screen. */
_checkOffset: function(inst, offset, isFixed) {
var pos = inst.input ? this._findPos(inst.input[0]) : null;
var browserWidth = window.innerWidth || (document.documentElement ?
document.documentElement.clientWidth : document.body.clientWidth);
var browserHeight = window.innerHeight || (document.documentElement ?
document.documentElement.clientHeight : document.body.clientHeight);
var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
// reposition date picker horizontally if outside the browser window
if (this._get(inst, 'isRTL') || (offset.left + inst.dpDiv.width() - scrollX) > browserWidth)
offset.left = Math.max((isFixed ? 0 : scrollX),
pos[0] + (inst.input ? inst.input.width() : 0) - (isFixed ? scrollX : 0) - inst.dpDiv.width() -
(isFixed && $.browser.opera ? document.documentElement.scrollLeft : 0));
else
offset.left -= (isFixed ? scrollX : 0);
// reposition date picker vertically if outside the browser window
if ((offset.top + inst.dpDiv.height() - scrollY) > browserHeight)
offset.top = Math.max((isFixed ? 0 : scrollY),
pos[1] - (isFixed ? scrollY : 0) - (this._inDialog ? 0 : inst.dpDiv.height()) -
(isFixed && $.browser.opera ? document.documentElement.scrollTop : 0));
else
offset.top -= (isFixed ? scrollY : 0);
return offset;
},
/* Find an object's position on the screen. */
_findPos: function(obj) {
while (obj && (obj.type == 'hidden' || obj.nodeType != 1)) {
obj = obj.nextSibling;
}
var position = $(obj).offset();
return [position.left, position.top];
},
/* Hide the date picker from view.
@param input element - the input field attached to the date picker
@param duration string - the duration over which to close the date picker */
_hideDatepicker: function(input, duration) {
var inst = this._curInst;
if (!inst || (input && inst != $.data(input, PROP_NAME)))
return;
var rangeSelect = this._get(inst, 'rangeSelect');
if (rangeSelect && inst.stayOpen)
this._selectDate('#' + inst.id, this._formatDate(inst,
inst.currentDay, inst.currentMonth, inst.currentYear));
inst.stayOpen = false;
if (this._datepickerShowing) {
duration = (duration != null ? duration : this._get(inst, 'duration'));
var showAnim = this._get(inst, 'showAnim');
var postProcess = function() {
$.datepicker._tidyDialog(inst);
};
if (duration != '' && $.effects && $.effects[showAnim])
inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'),
duration, postProcess);
else
inst.dpDiv[(duration == '' ? 'hide' : (showAnim == 'slideDown' ? 'slideUp' :
(showAnim == 'fadeIn' ? 'fadeOut' : 'hide')))](duration, postProcess);
if (duration == '')
this._tidyDialog(inst);
var onClose = this._get(inst, 'onClose');
if (onClose)
onClose.apply((inst.input ? inst.input[0] : null),
[(inst.input ? inst.input.val() : ''), inst]); // trigger custom callback
this._datepickerShowing = false;
this._lastInput = null;
inst.settings.prompt = null;
if (this._inDialog) {
this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
if ($.blockUI) {
$.unblockUI();
$('body').append(this.dpDiv);
}
}
this._inDialog = false;
}
this._curInst = null;
},
/* Tidy up after a dialog display. */
_tidyDialog: function(inst) {
inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker');
$('.' + this._promptClass, inst.dpDiv).remove();
},
/* Close date picker if clicked elsewhere. */
_checkExternalClick: function(event) {
if (!$.datepicker._curInst)
return;
var $target = $(event.target);
if (($target.parents('#' + $.datepicker._mainDivId).length == 0) &&
!$target.hasClass($.datepicker.markerClassName) &&
!$target.hasClass($.datepicker._triggerClass) &&
$.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
$.datepicker._hideDatepicker(null, '');
},
/* Adjust one of the date sub-fields. */
_adjustDate: function(id, offset, period) {
var target = $(id);
var inst = this._getInst(target[0]);
this._adjustInstDate(inst, offset, 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 = $(id);
var inst = this._getInst(target[0]);
if (inst.input && inst._selectingMonthYear && !$.browser.msie)
inst.input[0].focus();
inst._selectingMonthYear = !inst._selectingMonthYear;
},
/* Action for changing the first week day. */
_changeFirstDay: function(id, day) {
var target = $(id);
var inst = this._getInst(target[0]);
inst.settings.firstDay = day;
this._updateDatepicker(inst);
},
/* Action for selecting a day. */
_selectDay: function(id, month, year, td) {
if ($(td).hasClass(this._unselectableClass))
return;
var target = $(id);
var inst = this._getInst(target[0]);
var rangeSelect = this._get(inst, 'rangeSelect');
if (rangeSelect) {
inst.stayOpen = !inst.stayOpen;
if (inst.stayOpen) {
$('.ui-datepicker td', inst.dpDiv).removeClass(this._currentClass);
$(td).addClass(this._currentClass);
}
}
inst.selectedDay = inst.currentDay = $('a', td).html();
inst.selectedMonth = inst.currentMonth = month;
inst.selectedYear = inst.currentYear = year;
if (inst.stayOpen) {
inst.endDay = inst.endMonth = inst.endYear = null;
}
else if (rangeSelect) {
inst.endDay = inst.currentDay;
inst.endMonth = inst.currentMonth;
inst.endYear = inst.currentYear;
}
this._selectDate(id, this._formatDate(inst,
inst.currentDay, inst.currentMonth, inst.currentYear));
if (inst.stayOpen) {
inst.rangeStart = new Date(inst.currentYear, inst.currentMonth, inst.currentDay);
this._updateDatepicker(inst);
}
else if (rangeSelect) {
inst.selectedDay = inst.currentDay = inst.rangeStart.getDate();
inst.selectedMonth = inst.currentMonth = inst.rangeStart.getMonth();
inst.selectedYear = inst.currentYear = inst.rangeStart.getFullYear();
inst.rangeStart = null;
if (inst.inline)
this._updateDatepicker(inst);
}
},
/* Erase the input field and hide the date picker. */
_clearDate: function(id) {
var target = $(id);
var inst = this._getInst(target[0]);
if (this._get(inst, 'mandatory'))
return;
inst.stayOpen = false;
inst.endDay = inst.endMonth = inst.endYear = inst.rangeStart = null;
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 (this._get(inst, 'rangeSelect') && dateStr)
dateStr = (inst.rangeStart ? this._formatDate(inst, inst.rangeStart) :
dateStr) + this._get(inst, 'rangeSeparator') + dateStr;
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 if (!inst.stayOpen) {
this._hideDatepicker(null, this._get(inst, 'duration'));
this._lastInput = inst.input[0];
if (typeof(inst.input[0]) != 'object')
inst.input[0].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');
var date = this._getDate(inst);
dateStr = (isArray(date) ? (!date[0] && !date[1] ? '' :
this.formatDate(altFormat, date[0], this._getFormatConfig(inst)) +
this._get(inst, 'rangeSeparator') + this.formatDate(
altFormat, date[1] || date[0], this._getFormatConfig(inst))) :
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.getFullYear(), date.getMonth(), date.getDate(),
(date.getTimezoneOffset() / -60));
var firstMon = new Date(checkDate.getFullYear(), 1 - 1, 4); // First week always contains 4 Jan
var firstDay = firstMon.getDay() || 7; // Day of week: Mon = 1, ..., Sun = 7
firstMon.setDate(firstMon.getDate() + 1 - firstDay); // Preceding Monday
if (firstDay < 4 && checkDate < firstMon) { // Adjust first three days in year if necessary
checkDate.setDate(checkDate.getDate() - 3); // Generate for previous year
return $.datepicker.iso8601Week(checkDate);
} else if (checkDate > new Date(checkDate.getFullYear(), 12 - 1, 28)) { // Check last three days in year
firstDay = new Date(checkDate.getFullYear() + 1, 1 - 1, 4).getDay() || 7;
if (firstDay > 4 && (checkDate.getDay() || 7) < firstDay - 3) { // Adjust if necessary
return 1;
}
}
return Math.floor(((checkDate - firstMon) / 86400000) / 7) + 1; // Weeks to given date
},
/* Provide status text for a particular date.
@param date the date to get the status for
@param inst the current datepicker instance
@return the status display text for this date */
dateStatus: function(date, inst) {
return $.datepicker.formatDate($.datepicker._get(inst, 'dateStatus'),
date, $.datepicker._getFormatConfig(inst));
},
/* 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;
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;
};
// Extract a number from the string value
var getNumber = function(match) {
lookAhead(match);
var origSize = (match == '@' ? 14 : (match == 'y' ? 4 : (match == 'o' ? 3 : 2)));
var size = origSize;
var num = 0;
while (size > 0 && iValue < value.length &&
value.charAt(iValue) >= '0' && value.charAt(iValue) <= '9') {
num = num * 10 + parseInt(value.charAt(iValue++),10);
size--;
}
if (size == origSize)
throw 'Missing number at position ' + iValue;
return num;
};
// Extract a name from the string value and convert to an index
var getName = function(match, shortNames, longNames) {
var names = (lookAhead(match) ? longNames : shortNames);
var size = 0;
for (var j = 0; j < names.length; j++)
size = Math.max(size, names[j].length);
var name = '';
var iInit = iValue;
while (size > 0 && iValue < value.length) {
name += value.charAt(iValue++);
for (var i = 0; i < names.length; i++)
if (name == names[i])
return i + 1;
size--;
}
throw 'Unknown name at position ' + iInit;
};
// Confirm that a literal character matches the string value
var checkLiteral = function() {
if (value.charAt(iValue) != format.charAt(iFormat))
throw 'Unexpected literal at position ' + iValue;
iValue++;
};
var iValue = 0;
for (var iFormat = 0; iFormat < format.length; iFormat++) {
if (literal)
if (format.charAt(iFormat) == "'" && !lookAhead("'"))
literal = false;
else
checkLiteral();
else
switch (format.charAt(iFormat)) {
case 'd':
day = getNumber('d');
break;
case 'D':
getName('D', dayNamesShort, dayNames);
break;
case 'o':
doy = getNumber('o');
break;
case 'm':
month = getNumber('m');
break;
case 'M':
month = getName('M', monthNamesShort, monthNames);
break;
case 'y':
year = getNumber('y');
break;
case '@':
var date = new Date(getNumber('@'));
year = date.getFullYear();