487 lines
17 KiB
JavaScript
487 lines
17 KiB
JavaScript
/**
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* Combodate - 1.0.5
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* Dropdown date and time picker.
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* Converts text input into dropdowns to pick day, month, year, hour, minute and second.
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* Uses momentjs as datetime library http://momentjs.com.
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* For i18n include corresponding file from https://github.com/timrwood/moment/tree/master/lang
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*
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* Confusion at noon and midnight - see http://en.wikipedia.org/wiki/12-hour_clock#Confusion_at_noon_and_midnight
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* In combodate:
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* 12:00 pm --> 12:00 (24-h format, midday)
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* 12:00 am --> 00:00 (24-h format, midnight, start of day)
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*
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* Differs from momentjs parse rules:
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* 00:00 pm, 12:00 pm --> 12:00 (24-h format, day not change)
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* 00:00 am, 12:00 am --> 00:00 (24-h format, day not change)
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*
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*
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* Author: Vitaliy Potapov
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* Project page: http://github.com/vitalets/combodate
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* Copyright (c) 2012 Vitaliy Potapov. Released under MIT License.
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**/
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(function ($) {
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var Combodate = function (element, options) {
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this.$element = $(element);
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if(!this.$element.is('input')) {
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$.error('Combodate should be applied to INPUT element');
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return;
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}
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this.options = $.extend({}, $.fn.combodate.defaults, options, this.$element.data());
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this.init();
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};
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Combodate.prototype = {
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constructor: Combodate,
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init: function () {
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this.map = {
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//key regexp moment.method
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day: ['D', 'date'],
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month: ['M', 'month'],
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year: ['Y', 'year'],
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hour: ['[Hh]', 'hours'],
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minute: ['m', 'minutes'],
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second: ['s', 'seconds'],
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ampm: ['[Aa]', '']
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};
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this.$widget = $('<span class="combodate"></span>').html(this.getTemplate());
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this.initCombos();
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//update original input on change
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this.$widget.on('change', 'select', $.proxy(function(e) {
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this.$element.val(this.getValue()).change();
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// update days count if month or year changes
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if (this.options.smartDays) {
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if ($(e.target).is('.month') || $(e.target).is('.year')) {
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this.fillCombo('day');
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}
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}
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}, this));
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this.$widget.find('select').css('width', 'auto');
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// hide original input and insert widget
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this.$element.hide().after(this.$widget);
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// set initial value
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this.setValue(this.$element.val() || this.options.value);
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},
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/*
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Replace tokens in template with <select> elements
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*/
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getTemplate: function() {
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var tpl = this.options.template;
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//first pass
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$.each(this.map, function(k, v) {
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v = v[0];
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var r = new RegExp(v+'+'),
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token = v.length > 1 ? v.substring(1, 2) : v;
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tpl = tpl.replace(r, '{'+token+'}');
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});
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//replace spaces with
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tpl = tpl.replace(/ /g, ' ');
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//second pass
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$.each(this.map, function(k, v) {
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v = v[0];
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var token = v.length > 1 ? v.substring(1, 2) : v;
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tpl = tpl.replace('{'+token+'}', '<select class="'+k+'"></select>');
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});
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return tpl;
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},
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/*
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Initialize combos that presents in template
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*/
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initCombos: function() {
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for (var k in this.map) {
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var $c = this.$widget.find('.'+k);
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// set properties like this.$day, this.$month etc.
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this['$'+k] = $c.length ? $c : null;
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// fill with items
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this.fillCombo(k);
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}
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},
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/*
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Fill combo with items
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*/
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fillCombo: function(k) {
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var $combo = this['$'+k];
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if (!$combo) {
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return;
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}
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// define method name to fill items, e.g `fillDays`
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var f = 'fill' + k.charAt(0).toUpperCase() + k.slice(1);
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var items = this[f]();
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var value = $combo.val();
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$combo.empty();
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for(var i=0; i<items.length; i++) {
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$combo.append('<option value="'+items[i][0]+'">'+items[i][1]+'</option>');
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}
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$combo.val(value);
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},
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/*
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Initialize items of combos. Handles `firstItem` option
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*/
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fillCommon: function(key) {
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var values = [],
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relTime;
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if(this.options.firstItem === 'name') {
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//need both to support moment ver < 2 and >= 2
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relTime = moment.relativeTime || moment.langData()._relativeTime;
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var header = typeof relTime[key] === 'function' ? relTime[key](1, true, key, false) : relTime[key];
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//take last entry (see momentjs lang files structure)
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header = header.split(' ').reverse()[0];
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values.push(['', header]);
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} else if(this.options.firstItem === 'empty') {
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values.push(['', '']);
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}
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return values;
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},
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/*
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fill day
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*/
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fillDay: function() {
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var items = this.fillCommon('d'), name, i,
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twoDigit = this.options.template.indexOf('DD') !== -1,
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daysCount = 31;
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// detect days count (depends on month and year)
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// originally https://github.com/vitalets/combodate/pull/7
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if (this.options.smartDays && this.$month && this.$year) {
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var month = parseInt(this.$month.val(), 10);
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var year = parseInt(this.$year.val(), 10);
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if (!isNaN(month) && !isNaN(year)) {
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daysCount = moment([year, month]).daysInMonth();
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}
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}
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for (i = 1; i <= daysCount; i++) {
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name = twoDigit ? this.leadZero(i) : i;
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items.push([i, name]);
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}
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return items;
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},
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/*
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fill month
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*/
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fillMonth: function() {
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var items = this.fillCommon('M'), name, i,
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longNames = this.options.template.indexOf('MMMM') !== -1,
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shortNames = this.options.template.indexOf('MMM') !== -1,
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twoDigit = this.options.template.indexOf('MM') !== -1;
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for(i=0; i<=11; i++) {
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if(longNames) {
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//see https://github.com/timrwood/momentjs.com/pull/36
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name = moment().date(1).month(i).format('MMMM');
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} else if(shortNames) {
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name = moment().date(1).month(i).format('MMM');
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} else if(twoDigit) {
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name = this.leadZero(i+1);
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} else {
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name = i+1;
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}
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items.push([i, name]);
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}
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return items;
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},
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/*
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fill year
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*/
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fillYear: function() {
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var items = [], name, i,
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longNames = this.options.template.indexOf('YYYY') !== -1;
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for(i=this.options.maxYear; i>=this.options.minYear; i--) {
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name = longNames ? i : (i+'').substring(2);
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items[this.options.yearDescending ? 'push' : 'unshift']([i, name]);
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}
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items = this.fillCommon('y').concat(items);
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return items;
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},
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/*
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fill hour
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*/
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fillHour: function() {
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var items = this.fillCommon('h'), name, i,
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h12 = this.options.template.indexOf('h') !== -1,
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h24 = this.options.template.indexOf('H') !== -1,
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twoDigit = this.options.template.toLowerCase().indexOf('hh') !== -1,
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min = h12 ? 1 : 0,
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max = h12 ? 12 : 23;
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for(i=min; i<=max; i++) {
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name = twoDigit ? this.leadZero(i) : i;
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items.push([i, name]);
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}
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return items;
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},
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/*
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fill minute
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*/
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fillMinute: function() {
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var items = this.fillCommon('m'), name, i,
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twoDigit = this.options.template.indexOf('mm') !== -1;
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for(i=0; i<=59; i+= this.options.minuteStep) {
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name = twoDigit ? this.leadZero(i) : i;
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items.push([i, name]);
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}
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return items;
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},
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/*
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fill second
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*/
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fillSecond: function() {
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var items = this.fillCommon('s'), name, i,
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twoDigit = this.options.template.indexOf('ss') !== -1;
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for(i=0; i<=59; i+= this.options.secondStep) {
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name = twoDigit ? this.leadZero(i) : i;
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items.push([i, name]);
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}
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return items;
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},
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/*
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fill ampm
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*/
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fillAmpm: function() {
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var ampmL = this.options.template.indexOf('a') !== -1,
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ampmU = this.options.template.indexOf('A') !== -1,
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items = [
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['am', ampmL ? 'am' : 'AM'],
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['pm', ampmL ? 'pm' : 'PM']
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];
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return items;
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},
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/*
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Returns current date value from combos.
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If format not specified - `options.format` used.
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If format = `null` - Moment object returned.
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*/
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getValue: function(format) {
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var dt, values = {},
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that = this,
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notSelected = false;
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//getting selected values
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$.each(this.map, function(k, v) {
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if(k === 'ampm') {
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return;
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}
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var def = k === 'day' ? 1 : 0;
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values[k] = that['$'+k] ? parseInt(that['$'+k].val(), 10) : def;
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if(isNaN(values[k])) {
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notSelected = true;
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return false;
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}
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});
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//if at least one visible combo not selected - return empty string
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if(notSelected) {
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return '';
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}
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//convert hours 12h --> 24h
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if(this.$ampm) {
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//12:00 pm --> 12:00 (24-h format, midday), 12:00 am --> 00:00 (24-h format, midnight, start of day)
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if(values.hour === 12) {
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values.hour = this.$ampm.val() === 'am' ? 0 : 12;
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} else {
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values.hour = this.$ampm.val() === 'am' ? values.hour : values.hour+12;
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}
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}
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dt = moment([values.year, values.month, values.day, values.hour, values.minute, values.second]);
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//highlight invalid date
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this.highlight(dt);
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format = format === undefined ? this.options.format : format;
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if(format === null) {
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return dt.isValid() ? dt : null;
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} else {
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return dt.isValid() ? dt.format(format) : '';
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}
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},
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setValue: function(value) {
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if(!value) {
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return;
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}
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var dt = typeof value === 'string' ? moment(value, this.options.format) : moment(value),
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that = this,
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values = {};
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//function to find nearest value in select options
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function getNearest($select, value) {
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var delta = {};
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$select.children('option').each(function(i, opt){
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var optValue = $(opt).attr('value'),
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distance;
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if(optValue === '') return;
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distance = Math.abs(optValue - value);
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if(typeof delta.distance === 'undefined' || distance < delta.distance) {
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delta = {value: optValue, distance: distance};
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}
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});
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return delta.value;
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}
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if(dt.isValid()) {
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//read values from date object
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$.each(this.map, function(k, v) {
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if(k === 'ampm') {
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return;
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}
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values[k] = dt[v[1]]();
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});
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if(this.$ampm) {
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//12:00 pm --> 12:00 (24-h format, midday), 12:00 am --> 00:00 (24-h format, midnight, start of day)
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if(values.hour >= 12) {
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values.ampm = 'pm';
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if(values.hour > 12) {
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values.hour -= 12;
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}
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} else {
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values.ampm = 'am';
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if(values.hour === 0) {
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values.hour = 12;
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}
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}
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}
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$.each(values, function(k, v) {
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//call val() for each existing combo, e.g. this.$hour.val()
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if(that['$'+k]) {
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if(k === 'minute' && that.options.minuteStep > 1 && that.options.roundTime) {
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v = getNearest(that['$'+k], v);
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}
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if(k === 'second' && that.options.secondStep > 1 && that.options.roundTime) {
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v = getNearest(that['$'+k], v);
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}
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that['$'+k].val(v);
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}
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});
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// update days count
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if (this.options.smartDays) {
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this.fillCombo('day');
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}
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this.$element.val(dt.format(this.options.format)).change();
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}
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},
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/*
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highlight combos if date is invalid
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*/
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highlight: function(dt) {
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if(!dt.isValid()) {
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if(this.options.errorClass) {
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this.$widget.addClass(this.options.errorClass);
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} else {
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//store original border color
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if(!this.borderColor) {
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this.borderColor = this.$widget.find('select').css('border-color');
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}
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this.$widget.find('select').css('border-color', 'red');
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}
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} else {
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if(this.options.errorClass) {
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this.$widget.removeClass(this.options.errorClass);
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} else {
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this.$widget.find('select').css('border-color', this.borderColor);
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}
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}
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},
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leadZero: function(v) {
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return v <= 9 ? '0' + v : v;
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},
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destroy: function() {
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this.$widget.remove();
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this.$element.removeData('combodate').show();
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}
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//todo: clear method
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};
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$.fn.combodate = function ( option ) {
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var d, args = Array.apply(null, arguments);
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args.shift();
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//getValue returns date as string / object (not jQuery object)
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if(option === 'getValue' && this.length && (d = this.eq(0).data('combodate'))) {
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return d.getValue.apply(d, args);
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}
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return this.each(function () {
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var $this = $(this),
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data = $this.data('combodate'),
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options = typeof option == 'object' && option;
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if (!data) {
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$this.data('combodate', (data = new Combodate(this, options)));
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}
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if (typeof option == 'string' && typeof data[option] == 'function') {
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data[option].apply(data, args);
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}
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});
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};
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$.fn.combodate.defaults = {
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//in this format value stored in original input
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format: 'DD-MM-YYYY HH:mm',
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//in this format items in dropdowns are displayed
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template: 'D / MMM / YYYY H : mm',
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//initial value, can be `new Date()`
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value: null,
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minYear: 1970,
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maxYear: (new Date().getFullYear()),
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yearDescending: true,
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minuteStep: 5,
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secondStep: 1,
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firstItem: 'empty', //'name', 'empty', 'none'
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errorClass: null,
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roundTime: true, // whether to round minutes and seconds if step > 1
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smartDays: false // whether days in combo depend on selected month: 31, 30, 28
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};
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}(window.jQuery));
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