| blob | cad1d58c522a93f8b17ef95d8013804a353d60a8 |
1 /*
2 * jQuery UI Datepicker 1.8.2
3 *
4 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT (MIT-LICENSE.txt)
6 * and GPL (GPL-LICENSE.txt) licenses.
7 *
8 * http://docs.jquery.com/UI/Datepicker
9 *
10 * Depends:
11 * jquery.ui.core.js
12 */
14 (function($) { // hide the namespace
16 $.extend($.ui, { datepicker: { version: "1.8.2" } });
18 var PROP_NAME = 'datepicker';
19 var dpuuid = new Date().getTime();
21 /* Date picker manager.
22 Use the singleton instance of this class, $.datepicker, to interact with the date picker.
23 Settings for (groups of) date pickers are maintained in an instance object,
24 allowing multiple different settings on the same page. */
26 function Datepicker() {
27 this.debug = false; // Change this to true to start debugging
28 this._curInst = null; // The current instance in use
29 this._keyEvent = false; // If the last event was a key event
30 this._disabledInputs = []; // List of date picker inputs that have been disabled
31 this._datepickerShowing = false; // True if the popup picker is showing , false if not
32 this._inDialog = false; // True if showing within a "dialog", false if not
33 this._mainDivId = 'ui-datepicker-div'; // The ID of the main datepicker division
34 this._inlineClass = 'ui-datepicker-inline'; // The name of the inline marker class
35 this._appendClass = 'ui-datepicker-append'; // The name of the append marker class
36 this._triggerClass = 'ui-datepicker-trigger'; // The name of the trigger marker class
37 this._dialogClass = 'ui-datepicker-dialog'; // The name of the dialog marker class
38 this._disableClass = 'ui-datepicker-disabled'; // The name of the disabled covering marker class
39 this._unselectableClass = 'ui-datepicker-unselectable'; // The name of the unselectable cell marker class
40 this._currentClass = 'ui-datepicker-current-day'; // The name of the current day marker class
41 this._dayOverClass = 'ui-datepicker-days-cell-over'; // The name of the day hover marker class
42 this.regional = []; // Available regional settings, indexed by language code
43 this.regional[''] = { // Default regional settings
44 closeText: 'Done', // Display text for close link
45 prevText: 'Prev', // Display text for previous month link
46 nextText: 'Next', // Display text for next month link
47 currentText: 'Today', // Display text for current month link
48 monthNames: ['January','February','March','April','May','June',
49 'July','August','September','October','November','December'], // Names of months for drop-down and formatting
50 monthNamesShort: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'], // For formatting
51 dayNames: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'], // For formatting
52 dayNamesShort: ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'], // For formatting
53 dayNamesMin: ['Su','Mo','Tu','We','Th','Fr','Sa'], // Column headings for days starting at Sunday
54 weekHeader: 'Wk', // Column header for week of the year
55 dateFormat: 'mm/dd/yy', // See format options on parseDate
56 firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
57 isRTL: false, // True if right-to-left language, false if left-to-right
58 showMonthAfterYear: false, // True if the year select precedes month, false for month then year
59 yearSuffix: '' // Additional text to append to the year in the month headers
60 };
61 this._defaults = { // Global defaults for all the date picker instances
62 showOn: 'focus', // 'focus' for popup on focus,
63 // 'button' for trigger button, or 'both' for either
64 showAnim: 'fadeIn', // Name of jQuery animation for popup
65 showOptions: {}, // Options for enhanced animations
66 defaultDate: null, // Used when field is blank: actual date,
67 // +/-number for offset from today, null for today
68 appendText: '', // Display text following the input box, e.g. showing the format
69 buttonText: '...', // Text for trigger button
70 buttonImage: '', // URL for trigger button image
71 buttonImageOnly: false, // True if the image appears alone, false if it appears on a button
72 hideIfNoPrevNext: false, // True to hide next/previous month links
73 // if not applicable, false to just disable them
74 navigationAsDateFormat: false, // True if date formatting applied to prev/today/next links
75 gotoCurrent: false, // True if today link goes back to current selection instead
76 changeMonth: false, // True if month can be selected directly, false if only prev/next
77 changeYear: false, // True if year can be selected directly, false if only prev/next
78 yearRange: 'c-10:c+10', // Range of years to display in drop-down,
79 // either relative to today's year (-nn:+nn), relative to currently displayed year
80 // (c-nn:c+nn), absolute (nnnn:nnnn), or a combination of the above (nnnn:-n)
81 showOtherMonths: false, // True to show dates in other months, false to leave blank
82 selectOtherMonths: false, // True to allow selection of dates in other months, false for unselectable
83 showWeek: false, // True to show week of the year, false to not show it
84 calculateWeek: this.iso8601Week, // How to calculate the week of the year,
85 // takes a Date and returns the number of the week for it
86 shortYearCutoff: '+10', // Short year values < this are in the current century,
87 // > this are in the previous century,
88 // string value starting with '+' for current year + value
89 minDate: null, // The earliest selectable date, or null for no limit
90 maxDate: null, // The latest selectable date, or null for no limit
91 duration: 'fast', // Duration of display/closure
92 beforeShowDay: null, // Function that takes a date and returns an array with
93 // [0] = true if selectable, false if not, [1] = custom CSS class name(s) or '',
94 // [2] = cell title (optional), e.g. $.datepicker.noWeekends
95 beforeShow: null, // Function that takes an input field and
96 // returns a set of custom settings for the date picker
97 onSelect: null, // Define a callback function when a date is selected
98 onChangeMonthYear: null, // Define a callback function when the month or year is changed
99 onClose: null, // Define a callback function when the datepicker is closed
100 numberOfMonths: 1, // Number of months to show at a time
101 showCurrentAtPos: 0, // The position in multipe months at which to show the current month (starting at 0)
102 stepMonths: 1, // Number of months to step back/forward
103 stepBigMonths: 12, // Number of months to step back/forward for the big links
104 altField: '', // Selector for an alternate field to store selected dates into
105 altFormat: '', // The date format to use for the alternate field
106 constrainInput: true, // The input is constrained by the current date format
107 showButtonPanel: false, // True to show button panel, false to not show it
108 autoSize: false // True to size the input for the date format, false to leave as is
109 };
110 $.extend(this._defaults, this.regional['']);
111 this.dpDiv = $('<div id="' + this._mainDivId + '" class="ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all ui-helper-hidden-accessible"></div>');
112 }
114 $.extend(Datepicker.prototype, {
115 /* Class name added to elements to indicate already configured with a date picker. */
116 markerClassName: 'hasDatepicker',
118 /* Debug logging (if enabled). */
119 log: function () {
120 if (this.debug)
121 console.log.apply('', arguments);
122 },
124 // TODO rename to "widget" when switching to widget factory
125 _widgetDatepicker: function() {
126 return this.dpDiv;
127 },
129 /* Override the default settings for all instances of the date picker.
130 @param settings object - the new settings to use as defaults (anonymous object)
131 @return the manager object */
132 setDefaults: function(settings) {
133 extendRemove(this._defaults, settings || {});
134 return this;
135 },
137 /* Attach the date picker to a jQuery selection.
138 @param target element - the target input field or division or span
139 @param settings object - the new settings to use for this date picker instance (anonymous) */
140 _attachDatepicker: function(target, settings) {
141 // check for settings on the control itself - in namespace 'date:'
142 var inlineSettings = null;
143 for (var attrName in this._defaults) {
144 var attrValue = target.getAttribute('date:' + attrName);
145 if (attrValue) {
146 inlineSettings = inlineSettings || {};
147 try {
148 inlineSettings[attrName] = eval(attrValue);
149 } catch (err) {
150 inlineSettings[attrName] = attrValue;
151 }
152 }
153 }
154 var nodeName = target.nodeName.toLowerCase();
155 var inline = (nodeName == 'div' || nodeName == 'span');
156 if (!target.id) {
157 this.uuid += 1;
158 target.id = 'dp' + this.uuid;
159 }
160 var inst = this._newInst($(target), inline);
161 inst.settings = $.extend({}, settings || {}, inlineSettings || {});
162 if (nodeName == 'input') {
163 this._connectDatepicker(target, inst);
164 } else if (inline) {
165 this._inlineDatepicker(target, inst);
166 }
167 },
169 /* Create a new instance object. */
170 _newInst: function(target, inline) {
171 var id = target[0].id.replace(/([^A-Za-z0-9_])/g, '\\\\$1'); // escape jQuery meta chars
172 return {id: id, input: target, // associated target
173 selectedDay: 0, selectedMonth: 0, selectedYear: 0, // current selection
174 drawMonth: 0, drawYear: 0, // month being drawn
175 inline: inline, // is datepicker inline or not
176 dpDiv: (!inline ? this.dpDiv : // presentation div
177 $('<div class="' + this._inlineClass + ' ui-datepicker ui-widget ui-widget-content ui-helper-clearfix ui-corner-all"></div>'))};
178 },
180 /* Attach the date picker to an input field. */
181 _connectDatepicker: function(target, inst) {
182 var input = $(target);
183 inst.append = $([]);
184 inst.trigger = $([]);
185 if (input.hasClass(this.markerClassName))
186 return;
187 this._attachments(input, inst);
188 input.addClass(this.markerClassName).keydown(this._doKeyDown).
189 keypress(this._doKeyPress).keyup(this._doKeyUp).
190 bind("setData.datepicker", function(event, key, value) {
191 inst.settings[key] = value;
192 }).bind("getData.datepicker", function(event, key) {
193 return this._get(inst, key);
194 });
195 this._autoSize(inst);
196 $.data(target, PROP_NAME, inst);
197 },
199 /* Make attachments based on settings. */
200 _attachments: function(input, inst) {
201 var appendText = this._get(inst, 'appendText');
202 var isRTL = this._get(inst, 'isRTL');
203 if (inst.append)
204 inst.append.remove();
205 if (appendText) {
206 inst.append = $('<span class="' + this._appendClass + '">' + appendText + '</span>');
207 input[isRTL ? 'before' : 'after'](inst.append);
208 }
209 input.unbind('focus', this._showDatepicker);
210 if (inst.trigger)
211 inst.trigger.remove();
212 var showOn = this._get(inst, 'showOn');
213 if (showOn == 'focus' || showOn == 'both') // pop-up date picker when in the marked field
214 input.focus(this._showDatepicker);
215 if (showOn == 'button' || showOn == 'both') { // pop-up date picker when button clicked
216 var buttonText = this._get(inst, 'buttonText');
217 var buttonImage = this._get(inst, 'buttonImage');
218 inst.trigger = $(this._get(inst, 'buttonImageOnly') ?
219 $('<img/>').addClass(this._triggerClass).
220 attr({ src: buttonImage, alt: buttonText, title: buttonText }) :
221 $('<button type="button"></button>').addClass(this._triggerClass).
222 html(buttonImage == '' ? buttonText : $('<img/>').attr(
223 { src:buttonImage, alt:buttonText, title:buttonText })));
224 input[isRTL ? 'before' : 'after'](inst.trigger);
225 inst.trigger.click(function() {
226 if ($.datepicker._datepickerShowing && $.datepicker._lastInput == input[0])
227 $.datepicker._hideDatepicker();
228 else
229 $.datepicker._showDatepicker(input[0]);
230 return false;
231 });
232 }
233 },
235 /* Apply the maximum length for the date format. */
236 _autoSize: function(inst) {
237 if (this._get(inst, 'autoSize') && !inst.inline) {
238 var date = new Date(2009, 12 - 1, 20); // Ensure double digits
239 var dateFormat = this._get(inst, 'dateFormat');
240 if (dateFormat.match(/[DM]/)) {
241 var findMax = function(names) {
242 var max = 0;
243 var maxI = 0;
244 for (var i = 0; i < names.length; i++) {
245 if (names[i].length > max) {
246 max = names[i].length;
247 maxI = i;
248 }
249 }
250 return maxI;
251 };
252 date.setMonth(findMax(this._get(inst, (dateFormat.match(/MM/) ?
253 'monthNames' : 'monthNamesShort'))));
254 date.setDate(findMax(this._get(inst, (dateFormat.match(/DD/) ?
255 'dayNames' : 'dayNamesShort'))) + 20 - date.getDay());
256 }
257 inst.input.attr('size', this._formatDate(inst, date).length);
258 }
259 },
261 /* Attach an inline date picker to a div. */
262 _inlineDatepicker: function(target, inst) {
263 var divSpan = $(target);
264 if (divSpan.hasClass(this.markerClassName))
265 return;
266 divSpan.addClass(this.markerClassName).append(inst.dpDiv).
267 bind("setData.datepicker", function(event, key, value){
268 inst.settings[key] = value;
269 }).bind("getData.datepicker", function(event, key){
270 return this._get(inst, key);
271 });
272 $.data(target, PROP_NAME, inst);
273 this._setDate(inst, this._getDefaultDate(inst), true);
274 this._updateDatepicker(inst);
275 this._updateAlternate(inst);
276 },
278 /* Pop-up the date picker in a "dialog" box.
279 @param input element - ignored
280 @param date string or Date - the initial date to display
281 @param onSelect function - the function to call when a date is selected
282 @param settings object - update the dialog date picker instance's settings (anonymous object)
283 @param pos int[2] - coordinates for the dialog's position within the screen or
284 event - with x/y coordinates or
285 leave empty for default (screen centre)
286 @return the manager object */
287 _dialogDatepicker: function(input, date, onSelect, settings, pos) {
288 var inst = this._dialogInst; // internal instance
289 if (!inst) {
290 this.uuid += 1;
291 var id = 'dp' + this.uuid;
292 this._dialogInput = $('<input type="text" id="' + id +
293 '" style="position: absolute; top: -100px; width: 0px; z-index: -10;"/>');
294 this._dialogInput.keydown(this._doKeyDown);
295 $('body').append(this._dialogInput);
296 inst = this._dialogInst = this._newInst(this._dialogInput, false);
297 inst.settings = {};
298 $.data(this._dialogInput[0], PROP_NAME, inst);
299 }
300 extendRemove(inst.settings, settings || {});
301 date = (date && date.constructor == Date ? this._formatDate(inst, date) : date);
302 this._dialogInput.val(date);
304 this._pos = (pos ? (pos.length ? pos : [pos.pageX, pos.pageY]) : null);
305 if (!this._pos) {
306 var browserWidth = document.documentElement.clientWidth;
307 var browserHeight = document.documentElement.clientHeight;
308 var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
309 var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
310 this._pos = // should use actual width/height below
311 [(browserWidth / 2) - 100 + scrollX, (browserHeight / 2) - 150 + scrollY];
312 }
314 // move input on screen for focus, but hidden behind dialog
315 this._dialogInput.css('left', (this._pos[0] + 20) + 'px').css('top', this._pos[1] + 'px');
316 inst.settings.onSelect = onSelect;
317 this._inDialog = true;
318 this.dpDiv.addClass(this._dialogClass);
319 this._showDatepicker(this._dialogInput[0]);
320 if ($.blockUI)
321 $.blockUI(this.dpDiv);
322 $.data(this._dialogInput[0], PROP_NAME, inst);
323 return this;
324 },
326 /* Detach a datepicker from its control.
327 @param target element - the target input field or division or span */
328 _destroyDatepicker: function(target) {
329 var $target = $(target);
330 var inst = $.data(target, PROP_NAME);
331 if (!$target.hasClass(this.markerClassName)) {
332 return;
333 }
334 var nodeName = target.nodeName.toLowerCase();
335 $.removeData(target, PROP_NAME);
336 if (nodeName == 'input') {
337 inst.append.remove();
338 inst.trigger.remove();
339 $target.removeClass(this.markerClassName).
340 unbind('focus', this._showDatepicker).
341 unbind('keydown', this._doKeyDown).
342 unbind('keypress', this._doKeyPress).
343 unbind('keyup', this._doKeyUp);
344 } else if (nodeName == 'div' || nodeName == 'span')
345 $target.removeClass(this.markerClassName).empty();
346 },
348 /* Enable the date picker to a jQuery selection.
349 @param target element - the target input field or division or span */
350 _enableDatepicker: function(target) {
351 var $target = $(target);
352 var inst = $.data(target, PROP_NAME);
353 if (!$target.hasClass(this.markerClassName)) {
354 return;
355 }
356 var nodeName = target.nodeName.toLowerCase();
357 if (nodeName == 'input') {
358 target.disabled = false;
359 inst.trigger.filter('button').
360 each(function() { this.disabled = false; }).end().
361 filter('img').css({opacity: '1.0', cursor: ''});
362 }
363 else if (nodeName == 'div' || nodeName == 'span') {
364 var inline = $target.children('.' + this._inlineClass);
365 inline.children().removeClass('ui-state-disabled');
366 }
367 this._disabledInputs = $.map(this._disabledInputs,
368 function(value) { return (value == target ? null : value); }); // delete entry
369 },
371 /* Disable the date picker to a jQuery selection.
372 @param target element - the target input field or division or span */
373 _disableDatepicker: function(target) {
374 var $target = $(target);
375 var inst = $.data(target, PROP_NAME);
376 if (!$target.hasClass(this.markerClassName)) {
377 return;
378 }
379 var nodeName = target.nodeName.toLowerCase();
380 if (nodeName == 'input') {
381 target.disabled = true;
382 inst.trigger.filter('button').
383 each(function() { this.disabled = true; }).end().
384 filter('img').css({opacity: '0.5', cursor: 'default'});
385 }
386 else if (nodeName == 'div' || nodeName == 'span') {
387 var inline = $target.children('.' + this._inlineClass);
388 inline.children().addClass('ui-state-disabled');
389 }
390 this._disabledInputs = $.map(this._disabledInputs,
391 function(value) { return (value == target ? null : value); }); // delete entry
392 this._disabledInputs[this._disabledInputs.length] = target;
393 },
395 /* Is the first field in a jQuery collection disabled as a datepicker?
396 @param target element - the target input field or division or span
397 @return boolean - true if disabled, false if enabled */
398 _isDisabledDatepicker: function(target) {
399 if (!target) {
400 return false;
401 }
402 for (var i = 0; i < this._disabledInputs.length; i++) {
403 if (this._disabledInputs[i] == target)
404 return true;
405 }
406 return false;
407 },
409 /* Retrieve the instance data for the target control.
410 @param target element - the target input field or division or span
411 @return object - the associated instance data
412 @throws error if a jQuery problem getting data */
413 _getInst: function(target) {
414 try {
415 return $.data(target, PROP_NAME);
416 }
417 catch (err) {
418 throw 'Missing instance data for this datepicker';
419 }
420 },
422 /* Update or retrieve the settings for a date picker attached to an input field or division.
423 @param target element - the target input field or division or span
424 @param name object - the new settings to update or
425 string - the name of the setting to change or retrieve,
426 when retrieving also 'all' for all instance settings or
427 'defaults' for all global defaults
428 @param value any - the new value for the setting
429 (omit if above is an object or to retrieve a value) */
430 _optionDatepicker: function(target, name, value) {
431 var inst = this._getInst(target);
432 if (arguments.length == 2 && typeof name == 'string') {
433 return (name == 'defaults' ? $.extend({}, $.datepicker._defaults) :
434 (inst ? (name == 'all' ? $.extend({}, inst.settings) :
435 this._get(inst, name)) : null));
436 }
437 var settings = name || {};
438 if (typeof name == 'string') {
439 settings = {};
440 settings[name] = value;
441 }
442 if (inst) {
443 if (this._curInst == inst) {
444 this._hideDatepicker();
445 }
446 var date = this._getDateDatepicker(target, true);
447 extendRemove(inst.settings, settings);
448 this._attachments($(target), inst);
449 this._autoSize(inst);
450 this._setDateDatepicker(target, date);
451 this._updateDatepicker(inst);
452 }
453 },
455 // change method deprecated
456 _changeDatepicker: function(target, name, value) {
457 this._optionDatepicker(target, name, value);
458 },
460 /* Redraw the date picker attached to an input field or division.
461 @param target element - the target input field or division or span */
462 _refreshDatepicker: function(target) {
463 var inst = this._getInst(target);
464 if (inst) {
465 this._updateDatepicker(inst);
466 }
467 },
469 /* Set the dates for a jQuery selection.
470 @param target element - the target input field or division or span
471 @param date Date - the new date */
472 _setDateDatepicker: function(target, date) {
473 var inst = this._getInst(target);
474 if (inst) {
475 this._setDate(inst, date);
476 this._updateDatepicker(inst);
477 this._updateAlternate(inst);
478 }
479 },
481 /* Get the date(s) for the first entry in a jQuery selection.
482 @param target element - the target input field or division or span
483 @param noDefault boolean - true if no default date is to be used
484 @return Date - the current date */
485 _getDateDatepicker: function(target, noDefault) {
486 var inst = this._getInst(target);
487 if (inst && !inst.inline)
488 this._setDateFromField(inst, noDefault);
489 return (inst ? this._getDate(inst) : null);
490 },
492 /* Handle keystrokes. */
493 _doKeyDown: function(event) {
494 var inst = $.datepicker._getInst(event.target);
495 var handled = true;
496 var isRTL = inst.dpDiv.is('.ui-datepicker-rtl');
497 inst._keyEvent = true;
498 if ($.datepicker._datepickerShowing)
499 switch (event.keyCode) {
500 case 9: $.datepicker._hideDatepicker();
501 handled = false;
502 break; // hide on tab out
503 case 13: var sel = $('td.' + $.datepicker._dayOverClass, inst.dpDiv).
504 add($('td.' + $.datepicker._currentClass, inst.dpDiv));
505 if (sel[0])
506 $.datepicker._selectDay(event.target, inst.selectedMonth, inst.selectedYear, sel[0]);
507 else
508 $.datepicker._hideDatepicker();
509 return false; // don't submit the form
510 break; // select the value on enter
511 case 27: $.datepicker._hideDatepicker();
512 break; // hide on escape
513 case 33: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
514 -$.datepicker._get(inst, 'stepBigMonths') :
515 -$.datepicker._get(inst, 'stepMonths')), 'M');
516 break; // previous month/year on page up/+ ctrl
517 case 34: $.datepicker._adjustDate(event.target, (event.ctrlKey ?
518 +$.datepicker._get(inst, 'stepBigMonths') :
519 +$.datepicker._get(inst, 'stepMonths')), 'M');
520 break; // next month/year on page down/+ ctrl
521 case 35: if (event.ctrlKey || event.metaKey) $.datepicker._clearDate(event.target);
522 handled = event.ctrlKey || event.metaKey;
523 break; // clear on ctrl or command +end
524 case 36: if (event.ctrlKey || event.metaKey) $.datepicker._gotoToday(event.target);
525 handled = event.ctrlKey || event.metaKey;
526 break; // current on ctrl or command +home
527 case 37: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? +1 : -1), 'D');
528 handled = event.ctrlKey || event.metaKey;
529 // -1 day on ctrl or command +left
530 if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
531 -$.datepicker._get(inst, 'stepBigMonths') :
532 -$.datepicker._get(inst, 'stepMonths')), 'M');
533 // next month/year on alt +left on Mac
534 break;
535 case 38: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, -7, 'D');
536 handled = event.ctrlKey || event.metaKey;
537 break; // -1 week on ctrl or command +up
538 case 39: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, (isRTL ? -1 : +1), 'D');
539 handled = event.ctrlKey || event.metaKey;
540 // +1 day on ctrl or command +right
541 if (event.originalEvent.altKey) $.datepicker._adjustDate(event.target, (event.ctrlKey ?
542 +$.datepicker._get(inst, 'stepBigMonths') :
543 +$.datepicker._get(inst, 'stepMonths')), 'M');
544 // next month/year on alt +right
545 break;
546 case 40: if (event.ctrlKey || event.metaKey) $.datepicker._adjustDate(event.target, +7, 'D');
547 handled = event.ctrlKey || event.metaKey;
548 break; // +1 week on ctrl or command +down
549 default: handled = false;
550 }
551 else if (event.keyCode == 36 && event.ctrlKey) // display the date picker on ctrl+home
552 $.datepicker._showDatepicker(this);
553 else {
554 handled = false;
555 }
556 if (handled) {
557 event.preventDefault();
558 event.stopPropagation();
559 }
560 },
562 /* Filter entered characters - based on date format. */
563 _doKeyPress: function(event) {
564 var inst = $.datepicker._getInst(event.target);
565 if ($.datepicker._get(inst, 'constrainInput')) {
566 var chars = $.datepicker._possibleChars($.datepicker._get(inst, 'dateFormat'));
567 var chr = String.fromCharCode(event.charCode == undefined ? event.keyCode : event.charCode);
568 return event.ctrlKey || (chr < ' ' || !chars || chars.indexOf(chr) > -1);
569 }
570 },
572 /* Synchronise manual entry and field/alternate field. */
573 _doKeyUp: function(event) {
574 var inst = $.datepicker._getInst(event.target);
575 if (inst.input.val() != inst.lastVal) {
576 try {
577 var date = $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
578 (inst.input ? inst.input.val() : null),
579 $.datepicker._getFormatConfig(inst));
580 if (date) { // only if valid
581 $.datepicker._setDateFromField(inst);
582 $.datepicker._updateAlternate(inst);
583 $.datepicker._updateDatepicker(inst);
584 }
585 }
586 catch (event) {
587 $.datepicker.log(event);
588 }
589 }
590 return true;
591 },
593 /* Pop-up the date picker for a given input field.
594 @param input element - the input field attached to the date picker or
595 event - if triggered by focus */
596 _showDatepicker: function(input) {
597 input = input.target || input;
598 if (input.nodeName.toLowerCase() != 'input') // find from button/image trigger
599 input = $('input', input.parentNode)[0];
600 if ($.datepicker._isDisabledDatepicker(input) || $.datepicker._lastInput == input) // already here
601 return;
602 var inst = $.datepicker._getInst(input);
603 if ($.datepicker._curInst && $.datepicker._curInst != inst) {
604 $.datepicker._curInst.dpDiv.stop(true, true);
605 }
606 var beforeShow = $.datepicker._get(inst, 'beforeShow');
607 extendRemove(inst.settings, (beforeShow ? beforeShow.apply(input, [input, inst]) : {}));
608 inst.lastVal = null;
609 $.datepicker._lastInput = input;
610 $.datepicker._setDateFromField(inst);
611 if ($.datepicker._inDialog) // hide cursor
612 input.value = '';
613 if (!$.datepicker._pos) { // position below input
614 $.datepicker._pos = $.datepicker._findPos(input);
615 $.datepicker._pos[1] += input.offsetHeight; // add the height
616 }
617 var isFixed = false;
618 $(input).parents().each(function() {
619 isFixed |= $(this).css('position') == 'fixed';
620 return !isFixed;
621 });
622 if (isFixed && $.browser.opera) { // correction for Opera when fixed and scrolled
623 $.datepicker._pos[0] -= document.documentElement.scrollLeft;
624 $.datepicker._pos[1] -= document.documentElement.scrollTop;
625 }
626 var offset = {left: $.datepicker._pos[0], top: $.datepicker._pos[1]};
627 $.datepicker._pos = null;
628 // determine sizing offscreen
629 inst.dpDiv.css({position: 'absolute', display: 'block', top: '-1000px'});
630 $.datepicker._updateDatepicker(inst);
631 // fix width for dynamic number of date pickers
632 // and adjust position before showing
633 offset = $.datepicker._checkOffset(inst, offset, isFixed);
634 inst.dpDiv.css({position: ($.datepicker._inDialog && $.blockUI ?
635 'static' : (isFixed ? 'fixed' : 'absolute')), display: 'none',
636 left: offset.left + 'px', top: offset.top + 'px'});
637 if (!inst.inline) {
638 var showAnim = $.datepicker._get(inst, 'showAnim');
639 var duration = $.datepicker._get(inst, 'duration');
640 var postProcess = function() {
641 $.datepicker._datepickerShowing = true;
642 var borders = $.datepicker._getBorders(inst.dpDiv);
643 inst.dpDiv.find('iframe.ui-datepicker-cover'). // IE6- only
644 css({left: -borders[0], top: -borders[1],
645 width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()});
646 };
647 inst.dpDiv.zIndex($(input).zIndex()+1);
648 if ($.effects && $.effects[showAnim])
649 inst.dpDiv.show(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
650 else
651 inst.dpDiv[showAnim || 'show']((showAnim ? duration : null), postProcess);
652 if (!showAnim || !duration)
653 postProcess();
654 if (inst.input.is(':visible') && !inst.input.is(':disabled'))
655 inst.input.focus();
656 $.datepicker._curInst = inst;
657 }
658 },
660 /* Generate the date picker content. */
661 _updateDatepicker: function(inst) {
662 var self = this;
663 var borders = $.datepicker._getBorders(inst.dpDiv);
664 inst.dpDiv.empty().append(this._generateHTML(inst))
665 .find('iframe.ui-datepicker-cover') // IE6- only
666 .css({left: -borders[0], top: -borders[1],
667 width: inst.dpDiv.outerWidth(), height: inst.dpDiv.outerHeight()})
668 .end()
669 .find('button, .ui-datepicker-prev, .ui-datepicker-next, .ui-datepicker-calendar td a')
670 .bind('mouseout', function(){
671 $(this).removeClass('ui-state-hover');
672 if(this.className.indexOf('ui-datepicker-prev') != -1) $(this).removeClass('ui-datepicker-prev-hover');
673 if(this.className.indexOf('ui-datepicker-next') != -1) $(this).removeClass('ui-datepicker-next-hover');
674 })
675 .bind('mouseover', function(){
676 if (!self._isDisabledDatepicker( inst.inline ? inst.dpDiv.parent()[0] : inst.input[0])) {
677 $(this).parents('.ui-datepicker-calendar').find('a').removeClass('ui-state-hover');
678 $(this).addClass('ui-state-hover');
679 if(this.className.indexOf('ui-datepicker-prev') != -1) $(this).addClass('ui-datepicker-prev-hover');
680 if(this.className.indexOf('ui-datepicker-next') != -1) $(this).addClass('ui-datepicker-next-hover');
681 }
682 })
683 .end()
684 .find('.' + this._dayOverClass + ' a')
685 .trigger('mouseover')
686 .end();
687 var numMonths = this._getNumberOfMonths(inst);
688 var cols = numMonths[1];
689 var width = 17;
690 if (cols > 1)
691 inst.dpDiv.addClass('ui-datepicker-multi-' + cols).css('width', (width * cols) + 'em');
692 else
693 inst.dpDiv.removeClass('ui-datepicker-multi-2 ui-datepicker-multi-3 ui-datepicker-multi-4').width('');
694 inst.dpDiv[(numMonths[0] != 1 || numMonths[1] != 1 ? 'add' : 'remove') +
695 'Class']('ui-datepicker-multi');
696 inst.dpDiv[(this._get(inst, 'isRTL') ? 'add' : 'remove') +
697 'Class']('ui-datepicker-rtl');
698 if (inst == $.datepicker._curInst && $.datepicker._datepickerShowing && inst.input &&
699 inst.input.is(':visible') && !inst.input.is(':disabled'))
700 inst.input.focus();
701 },
703 /* Retrieve the size of left and top borders for an element.
704 @param elem (jQuery object) the element of interest
705 @return (number[2]) the left and top borders */
706 _getBorders: function(elem) {
707 var convert = function(value) {
708 return {thin: 1, medium: 2, thick: 3}[value] || value;
709 };
710 return [parseFloat(convert(elem.css('border-left-width'))),
711 parseFloat(convert(elem.css('border-top-width')))];
712 },
714 /* Check positioning to remain on screen. */
715 _checkOffset: function(inst, offset, isFixed) {
716 var dpWidth = inst.dpDiv.outerWidth();
717 var dpHeight = inst.dpDiv.outerHeight();
718 var inputWidth = inst.input ? inst.input.outerWidth() : 0;
719 var inputHeight = inst.input ? inst.input.outerHeight() : 0;
720 var viewWidth = document.documentElement.clientWidth + $(document).scrollLeft();
721 var viewHeight = document.documentElement.clientHeight + $(document).scrollTop();
723 offset.left -= (this._get(inst, 'isRTL') ? (dpWidth - inputWidth) : 0);
724 offset.left -= (isFixed && offset.left == inst.input.offset().left) ? $(document).scrollLeft() : 0;
725 offset.top -= (isFixed && offset.top == (inst.input.offset().top + inputHeight)) ? $(document).scrollTop() : 0;
727 // now check if datepicker is showing outside window viewport - move to a better place if so.
728 offset.left -= Math.min(offset.left, (offset.left + dpWidth > viewWidth && viewWidth > dpWidth) ?
729 Math.abs(offset.left + dpWidth - viewWidth) : 0);
730 offset.top -= Math.min(offset.top, (offset.top + dpHeight > viewHeight && viewHeight > dpHeight) ?
731 Math.abs(dpHeight + inputHeight) : 0);
733 return offset;
734 },
736 /* Find an object's position on the screen. */
737 _findPos: function(obj) {
738 var inst = this._getInst(obj);
739 var isRTL = this._get(inst, 'isRTL');
740 while (obj && (obj.type == 'hidden' || obj.nodeType != 1)) {
741 obj = obj[isRTL ? 'previousSibling' : 'nextSibling'];
742 }
743 var position = $(obj).offset();
744 return [position.left, position.top];
745 },
747 /* Hide the date picker from view.
748 @param input element - the input field attached to the date picker */
749 _hideDatepicker: function(input) {
750 var inst = this._curInst;
751 if (!inst || (input && inst != $.data(input, PROP_NAME)))
752 return;
753 if (this._datepickerShowing) {
754 var showAnim = this._get(inst, 'showAnim');
755 var duration = this._get(inst, 'duration');
756 var postProcess = function() {
757 $.datepicker._tidyDialog(inst);
758 this._curInst = null;
759 };
760 if ($.effects && $.effects[showAnim])
761 inst.dpDiv.hide(showAnim, $.datepicker._get(inst, 'showOptions'), duration, postProcess);
762 else
763 inst.dpDiv[(showAnim == 'slideDown' ? 'slideUp' :
764 (showAnim == 'fadeIn' ? 'fadeOut' : 'hide'))]((showAnim ? duration : null), postProcess);
765 if (!showAnim)
766 postProcess();
767 var onClose = this._get(inst, 'onClose');
768 if (onClose)
769 onClose.apply((inst.input ? inst.input[0] : null),
770 [(inst.input ? inst.input.val() : ''), inst]); // trigger custom callback
771 this._datepickerShowing = false;
772 this._lastInput = null;
773 if (this._inDialog) {
774 this._dialogInput.css({ position: 'absolute', left: '0', top: '-100px' });
775 if ($.blockUI) {
776 $.unblockUI();
777 $('body').append(this.dpDiv);
778 }
779 }
780 this._inDialog = false;
781 }
782 },
784 /* Tidy up after a dialog display. */
785 _tidyDialog: function(inst) {
786 inst.dpDiv.removeClass(this._dialogClass).unbind('.ui-datepicker-calendar');
787 },
789 /* Close date picker if clicked elsewhere. */
790 _checkExternalClick: function(event) {
791 if (!$.datepicker._curInst)
792 return;
793 var $target = $(event.target);
794 if ($target[0].id != $.datepicker._mainDivId &&
795 $target.parents('#' + $.datepicker._mainDivId).length == 0 &&
796 !$target.hasClass($.datepicker.markerClassName) &&
797 !$target.hasClass($.datepicker._triggerClass) &&
798 $.datepicker._datepickerShowing && !($.datepicker._inDialog && $.blockUI))
799 $.datepicker._hideDatepicker();
800 },
802 /* Adjust one of the date sub-fields. */
803 _adjustDate: function(id, offset, period) {
804 var target = $(id);
805 var inst = this._getInst(target[0]);
806 if (this._isDisabledDatepicker(target[0])) {
807 return;
808 }
809 this._adjustInstDate(inst, offset +
810 (period == 'M' ? this._get(inst, 'showCurrentAtPos') : 0), // undo positioning
811 period);
812 this._updateDatepicker(inst);
813 },
815 /* Action for current link. */
816 _gotoToday: function(id) {
817 var target = $(id);
818 var inst = this._getInst(target[0]);
819 if (this._get(inst, 'gotoCurrent') && inst.currentDay) {
820 inst.selectedDay = inst.currentDay;
821 inst.drawMonth = inst.selectedMonth = inst.currentMonth;
822 inst.drawYear = inst.selectedYear = inst.currentYear;
823 }
824 else {
825 var date = new Date();
826 inst.selectedDay = date.getDate();
827 inst.drawMonth = inst.selectedMonth = date.getMonth();
828 inst.drawYear = inst.selectedYear = date.getFullYear();
829 }
830 this._notifyChange(inst);
831 this._adjustDate(target);
832 },
834 /* Action for selecting a new month/year. */
835 _selectMonthYear: function(id, select, period) {
836 var target = $(id);
837 var inst = this._getInst(target[0]);
838 inst._selectingMonthYear = false;
839 inst['selected' + (period == 'M' ? 'Month' : 'Year')] =
840 inst['draw' + (period == 'M' ? 'Month' : 'Year')] =
841 parseInt(select.options[select.selectedIndex].value,10);
842 this._notifyChange(inst);
843 this._adjustDate(target);
844 },
846 /* Restore input focus after not changing month/year. */
847 _clickMonthYear: function(id) {
848 var target = $(id);
849 var inst = this._getInst(target[0]);
850 if (inst.input && inst._selectingMonthYear && !$.browser.msie)
851 inst.input.focus();
852 inst._selectingMonthYear = !inst._selectingMonthYear;
853 },
855 /* Action for selecting a day. */
856 _selectDay: function(id, month, year, td) {
857 var target = $(id);
858 if ($(td).hasClass(this._unselectableClass) || this._isDisabledDatepicker(target[0])) {
859 return;
860 }
861 var inst = this._getInst(target[0]);
862 inst.selectedDay = inst.currentDay = $('a', td).html();
863 inst.selectedMonth = inst.currentMonth = month;
864 inst.selectedYear = inst.currentYear = year;
865 this._selectDate(id, this._formatDate(inst,
866 inst.currentDay, inst.currentMonth, inst.currentYear));
867 },
869 /* Erase the input field and hide the date picker. */
870 _clearDate: function(id) {
871 var target = $(id);
872 var inst = this._getInst(target[0]);
873 this._selectDate(target, '');
874 },
876 /* Update the input field with the selected date. */
877 _selectDate: function(id, dateStr) {
878 var target = $(id);
879 var inst = this._getInst(target[0]);
880 dateStr = (dateStr != null ? dateStr : this._formatDate(inst));
881 if (inst.input)
882 inst.input.val(dateStr);
883 this._updateAlternate(inst);
884 var onSelect = this._get(inst, 'onSelect');
885 if (onSelect)
886 onSelect.apply((inst.input ? inst.input[0] : null), [dateStr, inst]); // trigger custom callback
887 else if (inst.input)
888 inst.input.trigger('change'); // fire the change event
889 if (inst.inline)
890 this._updateDatepicker(inst);
891 else {
892 this._hideDatepicker();
893 this._lastInput = inst.input[0];
894 if (typeof(inst.input[0]) != 'object')
895 inst.input.focus(); // restore focus
896 this._lastInput = null;
897 }
898 },
900 /* Update any alternate field to synchronise with the main field. */
901 _updateAlternate: function(inst) {
902 var altField = this._get(inst, 'altField');
903 if (altField) { // update alternate field too
904 var altFormat = this._get(inst, 'altFormat') || this._get(inst, 'dateFormat');
905 var date = this._getDate(inst);
906 var dateStr = this.formatDate(altFormat, date, this._getFormatConfig(inst));
907 $(altField).each(function() { $(this).val(dateStr); });
908 }
909 },
911 /* Set as beforeShowDay function to prevent selection of weekends.
912 @param date Date - the date to customise
913 @return [boolean, string] - is this date selectable?, what is its CSS class? */
914 noWeekends: function(date) {
915 var day = date.getDay();
916 return [(day > 0 && day < 6), ''];
917 },
919 /* Set as calculateWeek to determine the week of the year based on the ISO 8601 definition.
920 @param date Date - the date to get the week for
921 @return number - the number of the week within the year that contains this date */
922 iso8601Week: function(date) {
923 var checkDate = new Date(date.getTime());
924 // Find Thursday of this week starting on Monday
925 checkDate.setDate(checkDate.getDate() + 4 - (checkDate.getDay() || 7));
926 var time = checkDate.getTime();
927 checkDate.setMonth(0); // Compare with Jan 1
928 checkDate.setDate(1);
929 return Math.floor(Math.round((time - checkDate) / 86400000) / 7) + 1;
930 },
932 /* Parse a string value into a date object.
933 See formatDate below for the possible formats.
935 @param format string - the expected format of the date
936 @param value string - the date in the above format
937 @param settings Object - attributes include:
938 shortYearCutoff number - the cutoff year for determining the century (optional)
939 dayNamesShort string[7] - abbreviated names of the days from Sunday (optional)
940 dayNames string[7] - names of the days from Sunday (optional)
941 monthNamesShort string[12] - abbreviated names of the months (optional)
942 monthNames string[12] - names of the months (optional)
943 @return Date - the extracted date value or null if value is blank */
944 parseDate: function (format, value, settings) {
945 if (format == null || value == null)
946 throw 'Invalid arguments';
947 value = (typeof value == 'object' ? value.toString() : value + '');
948 if (value == '')
949 return null;
950 var shortYearCutoff = (settings ? settings.shortYearCutoff : null) || this._defaults.shortYearCutoff;
951 var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
952 var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
953 var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
954 var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
955 var year = -1;
956 var month = -1;
957 var day = -1;
958 var doy = -1;
959 var literal = false;
960 // Check whether a format character is doubled
961 var lookAhead = function(match) {
962 var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
963 if (matches)
964 iFormat++;
965 return matches;
966 };
967 // Extract a number from the string value
968 var getNumber = function(match) {
969 lookAhead(match);
970 var size = (match == '@' ? 14 : (match == '!' ? 20 :
971 (match == 'y' ? 4 : (match == 'o' ? 3 : 2))));
972 var digits = new RegExp('^\\d{1,' + size + '}');
973 var num = value.substring(iValue).match(digits);
974 if (!num)
975 throw 'Missing number at position ' + iValue;
976 iValue += num[0].length;
977 return parseInt(num[0], 10);
978 };
979 // Extract a name from the string value and convert to an index
980 var getName = function(match, shortNames, longNames) {
981 var names = (lookAhead(match) ? longNames : shortNames);
982 for (var i = 0; i < names.length; i++) {
983 if (value.substr(iValue, names[i].length) == names[i]) {
984 iValue += names[i].length;
985 return i + 1;
986 }
987 }
988 throw 'Unknown name at position ' + iValue;
989 };
990 // Confirm that a literal character matches the string value
991 var checkLiteral = function() {
992 if (value.charAt(iValue) != format.charAt(iFormat))
993 throw 'Unexpected literal at position ' + iValue;
994 iValue++;
995 };
996 var iValue = 0;
997 for (var iFormat = 0; iFormat < format.length; iFormat++) {
998 if (literal)
999 if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1000 literal = false;
1001 else
1002 checkLiteral();
1003 else
1004 switch (format.charAt(iFormat)) {
1005 case 'd':
1006 day = getNumber('d');
1007 break;
1008 case 'D':
1009 getName('D', dayNamesShort, dayNames);
1010 break;
1011 case 'o':
1012 doy = getNumber('o');
1013 break;
1014 case 'm':
1015 month = getNumber('m');
1016 break;
1017 case 'M':
1018 month = getName('M', monthNamesShort, monthNames);
1019 break;
1020 case 'y':
1021 year = getNumber('y');
1022 break;
1023 case '@':
1024 var date = new Date(getNumber('@'));
1025 year = date.getFullYear();
1026 month = date.getMonth() + 1;
1027 day = date.getDate();
1028 break;
1029 case '!':
1030 var date = new Date((getNumber('!') - this._ticksTo1970) / 10000);
1031 year = date.getFullYear();
1032 month = date.getMonth() + 1;
1033 day = date.getDate();
1034 break;
1035 case "'":
1036 if (lookAhead("'"))
1037 checkLiteral();
1038 else
1039 literal = true;
1040 break;
1041 default:
1042 checkLiteral();
1043 }
1044 }
1045 if (year == -1)
1046 year = new Date().getFullYear();
1047 else if (year < 100)
1048 year += new Date().getFullYear() - new Date().getFullYear() % 100 +
1049 (year <= shortYearCutoff ? 0 : -100);
1050 if (doy > -1) {
1051 month = 1;
1052 day = doy;
1053 do {
1054 var dim = this._getDaysInMonth(year, month - 1);
1055 if (day <= dim)
1056 break;
1057 month++;
1058 day -= dim;
1059 } while (true);
1060 }
1061 var date = this._daylightSavingAdjust(new Date(year, month - 1, day));
1062 if (date.getFullYear() != year || date.getMonth() + 1 != month || date.getDate() != day)
1063 throw 'Invalid date'; // E.g. 31/02/*
1064 return date;
1065 },
1067 /* Standard date formats. */
1068 ATOM: 'yy-mm-dd', // RFC 3339 (ISO 8601)
1069 COOKIE: 'D, dd M yy',
1070 ISO_8601: 'yy-mm-dd',
1071 RFC_822: 'D, d M y',
1072 RFC_850: 'DD, dd-M-y',
1073 RFC_1036: 'D, d M y',
1074 RFC_1123: 'D, d M yy',
1075 RFC_2822: 'D, d M yy',
1076 RSS: 'D, d M y', // RFC 822
1077 TICKS: '!',
1078 TIMESTAMP: '@',
1079 W3C: 'yy-mm-dd', // ISO 8601
1081 _ticksTo1970: (((1970 - 1) * 365 + Math.floor(1970 / 4) - Math.floor(1970 / 100) +
1082 Math.floor(1970 / 400)) * 24 * 60 * 60 * 10000000),
1084 /* Format a date object into a string value.
1085 The format can be combinations of the following:
1086 d - day of month (no leading zero)
1087 dd - day of month (two digit)
1088 o - day of year (no leading zeros)
1089 oo - day of year (three digit)
1090 D - day name short
1091 DD - day name long
1092 m - month of year (no leading zero)
1093 mm - month of year (two digit)
1094 M - month name short
1095 MM - month name long
1096 y - year (two digit)
1097 yy - year (four digit)
1098 @ - Unix timestamp (ms since 01/01/1970)
1099 ! - Windows ticks (100ns since 01/01/0001)
1100 '...' - literal text
1101 '' - single quote
1103 @param format string - the desired format of the date
1104 @param date Date - the date value to format
1105 @param settings Object - attributes include:
1106 dayNamesShort string[7] - abbreviated names of the days from Sunday (optional)
1107 dayNames string[7] - names of the days from Sunday (optional)
1108 monthNamesShort string[12] - abbreviated names of the months (optional)
1109 monthNames string[12] - names of the months (optional)
1110 @return string - the date in the above format */
1111 formatDate: function (format, date, settings) {
1112 if (!date)
1113 return '';
1114 var dayNamesShort = (settings ? settings.dayNamesShort : null) || this._defaults.dayNamesShort;
1115 var dayNames = (settings ? settings.dayNames : null) || this._defaults.dayNames;
1116 var monthNamesShort = (settings ? settings.monthNamesShort : null) || this._defaults.monthNamesShort;
1117 var monthNames = (settings ? settings.monthNames : null) || this._defaults.monthNames;
1118 // Check whether a format character is doubled
1119 var lookAhead = function(match) {
1120 var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
1121 if (matches)
1122 iFormat++;
1123 return matches;
1124 };
1125 // Format a number, with leading zero if necessary
1126 var formatNumber = function(match, value, len) {
1127 var num = '' + value;
1128 if (lookAhead(match))
1129 while (num.length < len)
1130 num = '0' + num;
1131 return num;
1132 };
1133 // Format a name, short or long as requested
1134 var formatName = function(match, value, shortNames, longNames) {
1135 return (lookAhead(match) ? longNames[value] : shortNames[value]);
1136 };
1137 var output = '';
1138 var literal = false;
1139 if (date)
1140 for (var iFormat = 0; iFormat < format.length; iFormat++) {
1141 if (literal)
1142 if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1143 literal = false;
1144 else
1145 output += format.charAt(iFormat);
1146 else
1147 switch (format.charAt(iFormat)) {
1148 case 'd':
1149 output += formatNumber('d', date.getDate(), 2);
1150 break;
1151 case 'D':
1152 output += formatName('D', date.getDay(), dayNamesShort, dayNames);
1153 break;
1154 case 'o':
1155 output += formatNumber('o',
1156 (date.getTime() - new Date(date.getFullYear(), 0, 0).getTime()) / 86400000, 3);
1157 break;
1158 case 'm':
1159 output += formatNumber('m', date.getMonth() + 1, 2);
1160 break;
1161 case 'M':
1162 output += formatName('M', date.getMonth(), monthNamesShort, monthNames);
1163 break;
1164 case 'y':
1165 output += (lookAhead('y') ? date.getFullYear() :
1166 (date.getYear() % 100 < 10 ? '0' : '') + date.getYear() % 100);
1167 break;
1168 case '@':
1169 output += date.getTime();
1170 break;
1171 case '!':
1172 output += date.getTime() * 10000 + this._ticksTo1970;
1173 break;
1174 case "'":
1175 if (lookAhead("'"))
1176 output += "'";
1177 else
1178 literal = true;
1179 break;
1180 default:
1181 output += format.charAt(iFormat);
1182 }
1183 }
1184 return output;
1185 },
1187 /* Extract all possible characters from the date format. */
1188 _possibleChars: function (format) {
1189 var chars = '';
1190 var literal = false;
1191 // Check whether a format character is doubled
1192 var lookAhead = function(match) {
1193 var matches = (iFormat + 1 < format.length && format.charAt(iFormat + 1) == match);
1194 if (matches)
1195 iFormat++;
1196 return matches;
1197 };
1198 for (var iFormat = 0; iFormat < format.length; iFormat++)
1199 if (literal)
1200 if (format.charAt(iFormat) == "'" && !lookAhead("'"))
1201 literal = false;
1202 else
1203 chars += format.charAt(iFormat);
1204 else
1205 switch (format.charAt(iFormat)) {
1206 case 'd': case 'm': case 'y': case '@':
1207 chars += '0123456789';
1208 break;
1209 case 'D': case 'M':
1210 return null; // Accept anything
1211 case "'":
1212 if (lookAhead("'"))
1213 chars += "'";
1214 else
1215 literal = true;
1216 break;
1217 default:
1218 chars += format.charAt(iFormat);
1219 }
1220 return chars;
1221 },
1223 /* Get a setting value, defaulting if necessary. */
1224 _get: function(inst, name) {
1225 return inst.settings[name] !== undefined ?
1226 inst.settings[name] : this._defaults[name];
1227 },
1229 /* Parse existing date and initialise date picker. */
1230 _setDateFromField: function(inst, noDefault) {
1231 if (inst.input.val() == inst.lastVal) {
1232 return;
1233 }
1234 var dateFormat = this._get(inst, 'dateFormat');
1235 var dates = inst.lastVal = inst.input ? inst.input.val() : null;
1236 var date, defaultDate;
1237 date = defaultDate = this._getDefaultDate(inst);
1238 var settings = this._getFormatConfig(inst);
1239 try {
1240 date = this.parseDate(dateFormat, dates, settings) || defaultDate;
1241 } catch (event) {
1242 this.log(event);
1243 dates = (noDefault ? '' : dates);
1244 }
1245 inst.selectedDay = date.getDate();
1246 inst.drawMonth = inst.selectedMonth = date.getMonth();
1247 inst.drawYear = inst.selectedYear = date.getFullYear();
1248 inst.currentDay = (dates ? date.getDate() : 0);
1249 inst.currentMonth = (dates ? date.getMonth() : 0);
1250 inst.currentYear = (dates ? date.getFullYear() : 0);
1251 this._adjustInstDate(inst);
1252 },
1254 /* Retrieve the default date shown on opening. */
1255 _getDefaultDate: function(inst) {
1256 return this._restrictMinMax(inst,
1257 this._determineDate(inst, this._get(inst, 'defaultDate'), new Date()));
1258 },
1260 /* A date may be specified as an exact value or a relative one. */
1261 _determineDate: function(inst, date, defaultDate) {
1262 var offsetNumeric = function(offset) {
1263 var date = new Date();
1264 date.setDate(date.getDate() + offset);
1265 return date;
1266 };
1267 var offsetString = function(offset) {
1268 try {
1269 return $.datepicker.parseDate($.datepicker._get(inst, 'dateFormat'),
1270 offset, $.datepicker._getFormatConfig(inst));
1271 }
1272 catch (e) {
1273 // Ignore
1274 }
1275 var date = (offset.toLowerCase().match(/^c/) ?
1276 $.datepicker._getDate(inst) : null) || new Date();
1277 var year = date.getFullYear();
1278 var month = date.getMonth();
1279 var day = date.getDate();
1280 var pattern = /([+-]?[0-9]+)\s*(d|D|w|W|m|M|y|Y)?/g;
1281 var matches = pattern.exec(offset);
1282 while (matches) {
1283 switch (matches[2] || 'd') {
1284 case 'd' : case 'D' :
1285 day += parseInt(matches[1],10); break;
1286 case 'w' : case 'W' :
1287 day += parseInt(matches[1],10) * 7; break;
1288 case 'm' : case 'M' :
1289 month += parseInt(matches[1],10);
1290 day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
1291 break;
1292 case 'y': case 'Y' :
1293 year += parseInt(matches[1],10);
1294 day = Math.min(day, $.datepicker._getDaysInMonth(year, month));
1295 break;
1296 }
1297 matches = pattern.exec(offset);
1298 }
1299 return new Date(year, month, day);
1300 };
1301 date = (date == null ? defaultDate : (typeof date == 'string' ? offsetString(date) :
1302 (typeof date == 'number' ? (isNaN(date) ? defaultDate : offsetNumeric(date)) : date)));
1303 date = (date && date.toString() == 'Invalid Date' ? defaultDate : date);
1304 if (date) {
1305 date.setHours(0);
1306 date.setMinutes(0);
1307 date.setSeconds(0);
1308 date.setMilliseconds(0);
1309 }
1310 return this._daylightSavingAdjust(date);
1311 },
1313 /* Handle switch to/from daylight saving.
1314 Hours may be non-zero on daylight saving cut-over:
1315 > 12 when midnight changeover, but then cannot generate
1316 midnight datetime, so jump to 1AM, otherwise reset.
1317 @param date (Date) the date to check
1318 @return (Date) the corrected date */
1319 _daylightSavingAdjust: function(date) {
1320 if (!date) return null;
1321 date.setHours(date.getHours() > 12 ? date.getHours() + 2 : 0);
1322 return date;
1323 },
1325 /* Set the date(s) directly. */
1326 _setDate: function(inst, date, noChange) {
1327 var clear = !(date);
1328 var origMonth = inst.selectedMonth;
1329 var origYear = inst.selectedYear;
1330 date = this._restrictMinMax(inst, this._determineDate(inst, date, new Date()));
1331 inst.selectedDay = inst.currentDay = date.getDate();
1332 inst.drawMonth = inst.selectedMonth = inst.currentMonth = date.getMonth();
1333 inst.drawYear = inst.selectedYear = inst.currentYear = date.getFullYear();
1334 if ((origMonth != inst.selectedMonth || origYear != inst.selectedYear) && !noChange)
1335 this._notifyChange(inst);
1336 this._adjustInstDate(inst);
1337 if (inst.input) {
1338 inst.input.val(clear ? '' : this._formatDate(inst));
1339 }
1340 },
1342 /* Retrieve the date(s) directly. */
1343 _getDate: function(inst) {
1344 var startDate = (!inst.currentYear || (inst.input && inst.input.val() == '') ? null :
1345 this._daylightSavingAdjust(new Date(
1346 inst.currentYear, inst.currentMonth, inst.currentDay)));
1347 return startDate;
1348 },
1350 /* Generate the HTML for the current state of the date picker. */
1351 _generateHTML: function(inst) {
1352 var today = new Date();
1353 today = this._daylightSavingAdjust(
1354 new Date(today.getFullYear(), today.getMonth(), today.getDate())); // clear time
1355 var isRTL = this._get(inst, 'isRTL');
1356 var showButtonPanel = this._get(inst, 'showButtonPanel');
1357 var hideIfNoPrevNext = this._get(inst, 'hideIfNoPrevNext');
1358 var navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat');
1359 var numMonths = this._getNumberOfMonths(inst);
1360 var showCurrentAtPos = this._get(inst, 'showCurrentAtPos');
1361 var stepMonths = this._get(inst, 'stepMonths');
1362 var isMultiMonth = (numMonths[0] != 1 || numMonths[1] != 1);
1363 var currentDate = this._daylightSavingAdjust((!inst.currentDay ? new Date(9999, 9, 9) :
1364 new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
1365 var minDate = this._getMinMaxDate(inst, 'min');
1366 var maxDate = this._getMinMaxDate(inst, 'max');
1367 var drawMonth = inst.drawMonth - showCurrentAtPos;
1368 var drawYear = inst.drawYear;
1369 if (drawMonth < 0) {
1370 drawMonth += 12;
1371 drawYear--;
1372 }
1373 if (maxDate) {
1374 var maxDraw = this._daylightSavingAdjust(new Date(maxDate.getFullYear(),
1375 maxDate.getMonth() - (numMonths[0] * numMonths[1]) + 1, maxDate.getDate()));
1376 maxDraw = (minDate && maxDraw < minDate ? minDate : maxDraw);
1377 while (this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1)) > maxDraw) {
1378 drawMonth--;
1379 if (drawMonth < 0) {
1380 drawMonth = 11;
1381 drawYear--;
1382 }
1383 }
1384 }
1385 inst.drawMonth = drawMonth;
1386 inst.drawYear = drawYear;
1387 var prevText = this._get(inst, 'prevText');
1388 prevText = (!navigationAsDateFormat ? prevText : this.formatDate(prevText,
1389 this._daylightSavingAdjust(new Date(drawYear, drawMonth - stepMonths, 1)),
1390 this._getFormatConfig(inst)));
1391 var prev = (this._canAdjustMonth(inst, -1, drawYear, drawMonth) ?
1392 '<a class="ui-datepicker-prev ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1393 '.datepicker._adjustDate(\'#' + inst.id + '\', -' + stepMonths + ', \'M\');"' +
1394 ' title="' + prevText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>' :
1395 (hideIfNoPrevNext ? '' : '<a class="ui-datepicker-prev ui-corner-all ui-state-disabled" title="'+ prevText +'"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'e' : 'w') + '">' + prevText + '</span></a>'));
1396 var nextText = this._get(inst, 'nextText');
1397 nextText = (!navigationAsDateFormat ? nextText : this.formatDate(nextText,
1398 this._daylightSavingAdjust(new Date(drawYear, drawMonth + stepMonths, 1)),
1399 this._getFormatConfig(inst)));
1400 var next = (this._canAdjustMonth(inst, +1, drawYear, drawMonth) ?
1401 '<a class="ui-datepicker-next ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1402 '.datepicker._adjustDate(\'#' + inst.id + '\', +' + stepMonths + ', \'M\');"' +
1403 ' title="' + nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>' :
1404 (hideIfNoPrevNext ? '' : '<a class="ui-datepicker-next ui-corner-all ui-state-disabled" title="'+ nextText + '"><span class="ui-icon ui-icon-circle-triangle-' + ( isRTL ? 'w' : 'e') + '">' + nextText + '</span></a>'));
1405 var currentText = this._get(inst, 'currentText');
1406 var gotoDate = (this._get(inst, 'gotoCurrent') && inst.currentDay ? currentDate : today);
1407 currentText = (!navigationAsDateFormat ? currentText :
1408 this.formatDate(currentText, gotoDate, this._getFormatConfig(inst)));
1409 var controls = (!inst.inline ? '<button type="button" class="ui-datepicker-close ui-state-default ui-priority-primary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1410 '.datepicker._hideDatepicker();">' + this._get(inst, 'closeText') + '</button>' : '');
1411 var buttonPanel = (showButtonPanel) ? '<div class="ui-datepicker-buttonpane ui-widget-content">' + (isRTL ? controls : '') +
1412 (this._isInRange(inst, gotoDate) ? '<button type="button" class="ui-datepicker-current ui-state-default ui-priority-secondary ui-corner-all" onclick="DP_jQuery_' + dpuuid +
1413 '.datepicker._gotoToday(\'#' + inst.id + '\');"' +
1414 '>' + currentText + '</button>' : '') + (isRTL ? '' : controls) + '</div>' : '';
1415 var firstDay = parseInt(this._get(inst, 'firstDay'),10);
1416 firstDay = (isNaN(firstDay) ? 0 : firstDay);
1417 var showWeek = this._get(inst, 'showWeek');
1418 var dayNames = this._get(inst, 'dayNames');
1419 var dayNamesShort = this._get(inst, 'dayNamesShort');
1420 var dayNamesMin = this._get(inst, 'dayNamesMin');
1421 var monthNames = this._get(inst, 'monthNames');
1422 var monthNamesShort = this._get(inst, 'monthNamesShort');
1423 var beforeShowDay = this._get(inst, 'beforeShowDay');
1424 var showOtherMonths = this._get(inst, 'showOtherMonths');
1425 var selectOtherMonths = this._get(inst, 'selectOtherMonths');
1426 var calculateWeek = this._get(inst, 'calculateWeek') || this.iso8601Week;
1427 var defaultDate = this._getDefaultDate(inst);
1428 var html = '';
1429 for (var row = 0; row < numMonths[0]; row++) {
1430 var group = '';
1431 for (var col = 0; col < numMonths[1]; col++) {
1432 var selectedDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, inst.selectedDay));
1433 var cornerClass = ' ui-corner-all';
1434 var calender = '';
1435 if (isMultiMonth) {
1436 calender += '<div class="ui-datepicker-group';
1437 if (numMonths[1] > 1)
1438 switch (col) {
1439 case 0: calender += ' ui-datepicker-group-first';
1440 cornerClass = ' ui-corner-' + (isRTL ? 'right' : 'left'); break;
1441 case numMonths[1]-1: calender += ' ui-datepicker-group-last';
1442 cornerClass = ' ui-corner-' + (isRTL ? 'left' : 'right'); break;
1443 default: calender += ' ui-datepicker-group-middle'; cornerClass = ''; break;
1444 }
1445 calender += '">';
1446 }
1447 calender += '<div class="ui-datepicker-header ui-widget-header ui-helper-clearfix' + cornerClass + '">' +
1448 (/all|left/.test(cornerClass) && row == 0 ? (isRTL ? next : prev) : '') +
1449 (/all|right/.test(cornerClass) && row == 0 ? (isRTL ? prev : next) : '') +
1450 this._generateMonthYearHeader(inst, drawMonth, drawYear, minDate, maxDate,
1451 row > 0 || col > 0, monthNames, monthNamesShort) + // draw month headers
1452 '</div><table class="ui-datepicker-calendar"><thead>' +
1453 '<tr>';
1454 var thead = (showWeek ? '<th class="ui-datepicker-week-col">' + this._get(inst, 'weekHeader') + '</th>' : '');
1455 for (var dow = 0; dow < 7; dow++) { // days of the week
1456 var day = (dow + firstDay) % 7;
1457 thead += '<th' + ((dow + firstDay + 6) % 7 >= 5 ? ' class="ui-datepicker-week-end"' : '') + '>' +
1458 '<span title="' + dayNames[day] + '">' + dayNamesMin[day] + '</span></th>';
1459 }
1460 calender += thead + '</tr></thead><tbody>';
1461 var daysInMonth = this._getDaysInMonth(drawYear, drawMonth);
1462 if (drawYear == inst.selectedYear && drawMonth == inst.selectedMonth)
1463 inst.selectedDay = Math.min(inst.selectedDay, daysInMonth);
1464 var leadDays = (this._getFirstDayOfMonth(drawYear, drawMonth) - firstDay + 7) % 7;
1465 var numRows = (isMultiMonth ? 6 : Math.ceil((leadDays + daysInMonth) / 7)); // calculate the number of rows to generate
1466 var printDate = this._daylightSavingAdjust(new Date(drawYear, drawMonth, 1 - leadDays));
1467 for (var dRow = 0; dRow < numRows; dRow++) { // create date picker rows
1468 calender += '<tr>';
1469 var tbody = (!showWeek ? '' : '<td class="ui-datepicker-week-col">' +
1470 this._get(inst, 'calculateWeek')(printDate) + '</td>');
1471 for (var dow = 0; dow < 7; dow++) { // create date picker days
1472 var daySettings = (beforeShowDay ?
1473 beforeShowDay.apply((inst.input ? inst.input[0] : null), [printDate]) : [true, '']);
1474 var otherMonth = (printDate.getMonth() != drawMonth);
1475 var unselectable = (otherMonth && !selectOtherMonths) || !daySettings[0] ||
1476 (minDate && printDate < minDate) || (maxDate && printDate > maxDate);
1477 tbody += '<td class="' +
1478 ((dow + firstDay + 6) % 7 >= 5 ? ' ui-datepicker-week-end' : '') + // highlight weekends
1479 (otherMonth ? ' ui-datepicker-other-month' : '') + // highlight days from other months
1480 ((printDate.getTime() == selectedDate.getTime() && drawMonth == inst.selectedMonth && inst._keyEvent) || // user pressed key
1481 (defaultDate.getTime() == printDate.getTime() && defaultDate.getTime() == selectedDate.getTime()) ?
1482 // or defaultDate is current printedDate and defaultDate is selectedDate
1483 ' ' + this._dayOverClass : '') + // highlight selected day
1484 (unselectable ? ' ' + this._unselectableClass + ' ui-state-disabled': '') + // highlight unselectable days
1485 (otherMonth && !showOtherMonths ? '' : ' ' + daySettings[1] + // highlight custom dates
1486 (printDate.getTime() == currentDate.getTime() ? ' ' + this._currentClass : '') + // highlight selected day
1487 (printDate.getTime() == today.getTime() ? ' ui-datepicker-today' : '')) + '"' + // highlight today (if different)
1488 ((!otherMonth || showOtherMonths) && daySettings[2] ? ' title="' + daySettings[2] + '"' : '') + // cell title
1489 (unselectable ? '' : ' onclick="DP_jQuery_' + dpuuid + '.datepicker._selectDay(\'#' +
1490 inst.id + '\',' + printDate.getMonth() + ',' + printDate.getFullYear() + ', this);return false;"') + '>' + // actions
1491 (otherMonth && !showOtherMonths ? ' ' : // display for other months
1492 (unselectable ? '<span class="ui-state-default">' + printDate.getDate() + '</span>' : '<a class="ui-state-default' +
1493 (printDate.getTime() == today.getTime() ? ' ui-state-highlight' : '') +
1494 (printDate.getTime() == currentDate.getTime() ? ' ui-state-active' : '') + // highlight selected day
1495 (otherMonth ? ' ui-priority-secondary' : '') + // distinguish dates from other months
1496 '" href="#">' + printDate.getDate() + '</a>')) + '</td>'; // display selectable date
1497 printDate.setDate(printDate.getDate() + 1);
1498 printDate = this._daylightSavingAdjust(printDate);
1499 }
1500 calender += tbody + '</tr>';
1501 }
1502 drawMonth++;
1503 if (drawMonth > 11) {
1504 drawMonth = 0;
1505 drawYear++;
1506 }
1507 calender += '</tbody></table>' + (isMultiMonth ? '</div>' +
1508 ((numMonths[0] > 0 && col == numMonths[1]-1) ? '<div class="ui-datepicker-row-break"></div>' : '') : '');
1509 group += calender;
1510 }
1511 html += group;
1512 }
1513 html += buttonPanel + ($.browser.msie && parseInt($.browser.version,10) < 7 && !inst.inline ?
1514 '<iframe src="javascript:false;" class="ui-datepicker-cover" frameborder="0"></iframe>' : '');
1515 inst._keyEvent = false;
1516 return html;
1517 },
1519 /* Generate the month and year header. */
1520 _generateMonthYearHeader: function(inst, drawMonth, drawYear, minDate, maxDate,
1521 secondary, monthNames, monthNamesShort) {
1522 var changeMonth = this._get(inst, 'changeMonth');
1523 var changeYear = this._get(inst, 'changeYear');
1524 var showMonthAfterYear = this._get(inst, 'showMonthAfterYear');
1525 var html = '<div class="ui-datepicker-title">';
1526 var monthHtml = '';
1527 // month selection
1528 if (secondary || !changeMonth)
1529 monthHtml += '<span class="ui-datepicker-month">' + monthNames[drawMonth] + '</span>';
1530 else {
1531 var inMinYear = (minDate && minDate.getFullYear() == drawYear);
1532 var inMaxYear = (maxDate && maxDate.getFullYear() == drawYear);
1533 monthHtml += '<select class="ui-datepicker-month" ' +
1534 'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'M\');" ' +
1535 'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
1536 '>';
1537 for (var month = 0; month < 12; month++) {
1538 if ((!inMinYear || month >= minDate.getMonth()) &&
1539 (!inMaxYear || month <= maxDate.getMonth()))
1540 monthHtml += '<option value="' + month + '"' +
1541 (month == drawMonth ? ' selected="selected"' : '') +
1542 '>' + monthNamesShort[month] + '</option>';
1543 }
1544 monthHtml += '</select>';
1545 }
1546 if (!showMonthAfterYear)
1547 html += monthHtml + (secondary || !(changeMonth && changeYear) ? ' ' : '');
1548 // year selection
1549 if (secondary || !changeYear)
1550 html += '<span class="ui-datepicker-year">' + drawYear + '</span>';
1551 else {
1552 // determine range of years to display
1553 var years = this._get(inst, 'yearRange').split(':');
1554 var thisYear = new Date().getFullYear();
1555 var determineYear = function(value) {
1556 var year = (value.match(/c[+-].*/) ? drawYear + parseInt(value.substring(1), 10) :
1557 (value.match(/[+-].*/) ? thisYear + parseInt(value, 10) :
1558 parseInt(value, 10)));
1559 return (isNaN(year) ? thisYear : year);
1560 };
1561 var year = determineYear(years[0]);
1562 var endYear = Math.max(year, determineYear(years[1] || ''));
1563 year = (minDate ? Math.max(year, minDate.getFullYear()) : year);
1564 endYear = (maxDate ? Math.min(endYear, maxDate.getFullYear()) : endYear);
1565 html += '<select class="ui-datepicker-year" ' +
1566 'onchange="DP_jQuery_' + dpuuid + '.datepicker._selectMonthYear(\'#' + inst.id + '\', this, \'Y\');" ' +
1567 'onclick="DP_jQuery_' + dpuuid + '.datepicker._clickMonthYear(\'#' + inst.id + '\');"' +
1568 '>';
1569 for (; year <= endYear; year++) {
1570 html += '<option value="' + year + '"' +
1571 (year == drawYear ? ' selected="selected"' : '') +
1572 '>' + year + '</option>';
1573 }
1574 html += '</select>';
1575 }
1576 html += this._get(inst, 'yearSuffix');
1577 if (showMonthAfterYear)
1578 html += (secondary || !(changeMonth && changeYear) ? ' ' : '') + monthHtml;
1579 html += '</div>'; // Close datepicker_header
1580 return html;
1581 },
1583 /* Adjust one of the date sub-fields. */
1584 _adjustInstDate: function(inst, offset, period) {
1585 var year = inst.drawYear + (period == 'Y' ? offset : 0);
1586 var month = inst.drawMonth + (period == 'M' ? offset : 0);
1587 var day = Math.min(inst.selectedDay, this._getDaysInMonth(year, month)) +
1588 (period == 'D' ? offset : 0);
1589 var date = this._restrictMinMax(inst,
1590 this._daylightSavingAdjust(new Date(year, month, day)));
1591 inst.selectedDay = date.getDate();
1592 inst.drawMonth = inst.selectedMonth = date.getMonth();
1593 inst.drawYear = inst.selectedYear = date.getFullYear();
1594 if (period == 'M' || period == 'Y')
1595 this._notifyChange(inst);
1596 },
1598 /* Ensure a date is within any min/max bounds. */
1599 _restrictMinMax: function(inst, date) {
1600 var minDate = this._getMinMaxDate(inst, 'min');
1601 var maxDate = this._getMinMaxDate(inst, 'max');
1602 date = (minDate && date < minDate ? minDate : date);
1603 date = (maxDate && date > maxDate ? maxDate : date);
1604 return date;
1605 },
1607 /* Notify change of month/year. */
1608 _notifyChange: function(inst) {
1609 var onChange = this._get(inst, 'onChangeMonthYear');
1610 if (onChange)
1611 onChange.apply((inst.input ? inst.input[0] : null),
1612 [inst.selectedYear, inst.selectedMonth + 1, inst]);
1613 },
1615 /* Determine the number of months to show. */
1616 _getNumberOfMonths: function(inst) {
1617 var numMonths = this._get(inst, 'numberOfMonths');
1618 return (numMonths == null ? [1, 1] : (typeof numMonths == 'number' ? [1, numMonths] : numMonths));
1619 },
1621 /* Determine the current maximum date - ensure no time components are set. */
1622 _getMinMaxDate: function(inst, minMax) {
1623 return this._determineDate(inst, this._get(inst, minMax + 'Date'), null);
1624 },
1626 /* Find the number of days in a given month. */
1627 _getDaysInMonth: function(year, month) {
1628 return 32 - new Date(year, month, 32).getDate();
1629 },
1631 /* Find the day of the week of the first of a month. */
1632 _getFirstDayOfMonth: function(year, month) {
1633 return new Date(year, month, 1).getDay();
1634 },
1636 /* Determines if we should allow a "next/prev" month display change. */
1637 _canAdjustMonth: function(inst, offset, curYear, curMonth) {
1638 var numMonths = this._getNumberOfMonths(inst);
1639 var date = this._daylightSavingAdjust(new Date(curYear,
1640 curMonth + (offset < 0 ? offset : numMonths[0] * numMonths[1]), 1));
1641 if (offset < 0)
1642 date.setDate(this._getDaysInMonth(date.getFullYear(), date.getMonth()));
1643 return this._isInRange(inst, date);
1644 },
1646 /* Is the given date in the accepted range? */
1647 _isInRange: function(inst, date) {
1648 var minDate = this._getMinMaxDate(inst, 'min');
1649 var maxDate = this._getMinMaxDate(inst, 'max');
1650 return ((!minDate || date.getTime() >= minDate.getTime()) &&
1651 (!maxDate || date.getTime() <= maxDate.getTime()));
1652 },
1654 /* Provide the configuration settings for formatting/parsing. */
1655 _getFormatConfig: function(inst) {
1656 var shortYearCutoff = this._get(inst, 'shortYearCutoff');
1657 shortYearCutoff = (typeof shortYearCutoff != 'string' ? shortYearCutoff :
1658 new Date().getFullYear() % 100 + parseInt(shortYearCutoff, 10));
1659 return {shortYearCutoff: shortYearCutoff,
1660 dayNamesShort: this._get(inst, 'dayNamesShort'), dayNames: this._get(inst, 'dayNames'),
1661 monthNamesShort: this._get(inst, 'monthNamesShort'), monthNames: this._get(inst, 'monthNames')};
1662 },
1664 /* Format the given date for display. */
1665 _formatDate: function(inst, day, month, year) {
1666 if (!day) {
1667 inst.currentDay = inst.selectedDay;
1668 inst.currentMonth = inst.selectedMonth;
1669 inst.currentYear = inst.selectedYear;
1670 }
1671 var date = (day ? (typeof day == 'object' ? day :
1672 this._daylightSavingAdjust(new Date(year, month, day))) :
1673 this._daylightSavingAdjust(new Date(inst.currentYear, inst.currentMonth, inst.currentDay)));
1674 return this.formatDate(this._get(inst, 'dateFormat'), date, this._getFormatConfig(inst));
1675 }
1676 });
1678 /* jQuery extend now ignores nulls! */
1679 function extendRemove(target, props) {
1680 $.extend(target, props);
1681 for (var name in props)
1682 if (props[name] == null || props[name] == undefined)
1683 target[name] = props[name];
1684 return target;
1685 };
1687 /* Determine whether an object is an array. */
1688 function isArray(a) {
1689 return (a && (($.browser.safari && typeof a == 'object' && a.length) ||
1690 (a.constructor && a.constructor.toString().match(/\Array\(\)/))));
1691 };
1693 /* Invoke the datepicker functionality.
1694 @param options string - a command, optionally followed by additional parameters or
1695 Object - settings for attaching new datepicker functionality
1696 @return jQuery object */
1697 $.fn.datepicker = function(options){
1699 /* Initialise the date picker. */
1700 if (!$.datepicker.initialized) {
1701 $(document).mousedown($.datepicker._checkExternalClick).
1702 find('body').append($.datepicker.dpDiv);
1703 $.datepicker.initialized = true;
1704 }
1706 var otherArgs = Array.prototype.slice.call(arguments, 1);
1707 if (typeof options == 'string' && (options == 'isDisabled' || options == 'getDate' || options == 'widget'))
1708 return $.datepicker['_' + options + 'Datepicker'].
1709 apply($.datepicker, [this[0]].concat(otherArgs));
1710 if (options == 'option' && arguments.length == 2 && typeof arguments[1] == 'string')
1711 return $.datepicker['_' + options + 'Datepicker'].
1712 apply($.datepicker, [this[0]].concat(otherArgs));
1713 return this.each(function() {
1714 typeof options == 'string' ?
1715 $.datepicker['_' + options + 'Datepicker'].
1716 apply($.datepicker, [this].concat(otherArgs)) :
1717 $.datepicker._attachDatepicker(this, options);
1718 });
1719 };
1721 $.datepicker = new Datepicker(); // singleton instance
1722 $.datepicker.initialized = false;
1723 $.datepicker.uuid = new Date().getTime();
1724 $.datepicker.version = "1.8.2";
1726 // Workaround for #4055
1727 // Add another global to avoid noConflict issues with inline event handlers
1728 window['DP_jQuery_' + dpuuid] = $;
1730 })(jQuery);