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277 lines
8.8 KiB
JavaScript
277 lines
8.8 KiB
JavaScript
/*
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* A time picker for jQuery
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*
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* Dual licensed under the MIT and GPL licenses.
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* Copyright (c) 2009 Anders Fajerson
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* @name timePicker
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* @author Anders Fajerson (http://perifer.se)
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* @example $("#mytime").timePicker();
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* @example $("#mytime").timePicker({step:30, startTime:"15:00", endTime:"18:00"});
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*
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* Based on timePicker by Sam Collet (http://www.texotela.co.uk/code/jquery/timepicker/)
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*
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* Options:
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* step: # of minutes to step the time by
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* startTime: beginning of the range of acceptable times
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* endTime: end of the range of acceptable times
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* separator: separator string to use between hours and minutes (e.g. ':')
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* show24Hours: use a 24-hour scheme
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*/
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(function($){
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$.fn.timePicker = function(options) {
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// Build main options before element iteration
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var settings = $.extend({}, $.fn.timePicker.defaults, options);
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return this.each(function() {
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$.timePicker(this, settings);
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});
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};
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$.timePicker = function (elm, settings) {
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var e = $(elm)[0];
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return e.timePicker || (e.timePicker = new jQuery._timePicker(e, settings));
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};
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$.timePicker.version = '0.3';
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$._timePicker = function(elm, settings) {
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var tpOver = false;
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var keyDown = false;
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var startTime = timeToDate(settings.startTime, settings);
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var endTime = timeToDate(settings.endTime, settings);
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var selectedClass = "selected";
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var selectedSelector = "li." + selectedClass;
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$(elm).attr('autocomplete', 'OFF'); // Disable browser autocomplete
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var times = [];
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var time = new Date(startTime); // Create a new date object.
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while(time <= endTime) {
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times[times.length] = formatTime(time, settings);
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time = new Date(time.setMinutes(time.getMinutes() + settings.step));
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}
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var $tpDiv = $('<div class="time-picker'+ (settings.show24Hours ? '' : ' time-picker-12hours') +'"></div>');
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var $tpList = $('<ul></ul>');
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// Build the list.
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for(var i = 0; i < times.length; i++) {
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$tpList.append("<li>" + times[i] + "</li>");
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}
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$tpDiv.append($tpList);
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// Append the timPicker to the body and position it.
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$tpDiv.appendTo('body').hide();
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// Store the mouse state, used by the blur event. Use mouseover instead of
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// mousedown since Opera fires blur before mousedown.
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$tpDiv.mouseover(function() {
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tpOver = true;
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}).mouseout(function() {
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tpOver = false;
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});
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$("li", $tpList).mouseover(function() {
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if (!keyDown) {
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$(selectedSelector, $tpDiv).removeClass(selectedClass);
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$(this).addClass(selectedClass);
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}
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}).mousedown(function() {
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tpOver = true;
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}).click(function() {
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setTimeVal(elm, this, $tpDiv, settings);
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tpOver = false;
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});
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var showPicker = function() {
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if ($tpDiv.is(":visible")) {
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return false;
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}
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$("li", $tpDiv).removeClass(selectedClass);
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// Position
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var elmOffset = $(elm).offset();
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$tpDiv.css({'top':elmOffset.top + elm.offsetHeight, 'left':elmOffset.left});
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// Show picker. This has to be done before scrollTop is set since that
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// can't be done on hidden elements.
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$tpDiv.show();
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// Try to find a time in the list that matches the entered time.
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var time = elm.value ? timeStringToDate(elm.value, settings) : startTime;
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var startMin = startTime.getHours() * 60 + startTime.getMinutes();
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var min = (time.getHours() * 60 + time.getMinutes()) - startMin;
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var steps = Math.round(min / settings.step);
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var roundTime = normaliseTime(new Date(0, 0, 0, 0, (steps * settings.step + startMin), 0));
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roundTime = (startTime < roundTime && roundTime <= endTime) ? roundTime : startTime;
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var $matchedTime = $("li:contains(" + formatTime(roundTime, settings) + ")", $tpDiv);
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if ($matchedTime.length) {
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$matchedTime.addClass(selectedClass);
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// Scroll to matched time.
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$tpDiv[0].scrollTop = $matchedTime[0].offsetTop;
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}
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return true;
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};
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// Attach to click as well as focus so timePicker can be shown again when
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// clicking on the input when it already has focus.
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$(elm).focus(showPicker).click(showPicker);
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// Hide timepicker on blur
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$(elm).blur(function() {
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if (!tpOver) {
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$tpDiv.hide();
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}
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});
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// Keypress doesn't repeat on Safari for non-text keys.
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// Keydown doesn't repeat on Firefox and Opera on Mac.
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// Using kepress for Opera and Firefox and keydown for the rest seems to
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// work with up/down/enter/esc.
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var event = ($.browser.opera || $.browser.mozilla) ? 'keypress' : 'keydown';
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$(elm)[event](function(e) {
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var $selected;
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keyDown = true;
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var top = $tpDiv[0].scrollTop;
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switch (e.keyCode) {
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case 38: // Up arrow.
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// Just show picker if it's hidden.
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if (showPicker()) {
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return false;
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};
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$selected = $(selectedSelector, $tpList);
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var prev = $selected.prev().addClass(selectedClass)[0];
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if (prev) {
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$selected.removeClass(selectedClass);
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// Scroll item into view.
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if (prev.offsetTop < top) {
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$tpDiv[0].scrollTop = top - prev.offsetHeight;
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}
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}
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else {
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// Loop to next item.
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$selected.removeClass(selectedClass);
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prev = $("li:last", $tpList).addClass(selectedClass)[0];
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$tpDiv[0].scrollTop = prev.offsetTop - prev.offsetHeight;
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}
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return false;
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break;
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case 40: // Down arrow, similar in behaviour to up arrow.
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if (showPicker()) {
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return false;
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};
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$selected = $(selectedSelector, $tpList);
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var next = $selected.next().addClass(selectedClass)[0];
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if (next) {
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$selected.removeClass(selectedClass);
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if (next.offsetTop + next.offsetHeight > top + $tpDiv[0].offsetHeight) {
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$tpDiv[0].scrollTop = top + next.offsetHeight;
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}
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}
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else {
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$selected.removeClass(selectedClass);
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next = $("li:first", $tpList).addClass(selectedClass)[0];
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$tpDiv[0].scrollTop = 0;
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}
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return false;
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break;
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case 13: // Enter
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if ($tpDiv.is(":visible")) {
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var sel = $(selectedSelector, $tpList)[0];
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setTimeVal(elm, sel, $tpDiv, settings);
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}
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return false;
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break;
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case 27: // Esc
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$tpDiv.hide();
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return false;
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break;
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}
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return true;
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});
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$(elm).keyup(function(e) {
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keyDown = false;
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});
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// Helper function to get an inputs current time as Date object.
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// Returns a Date object.
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this.getTime = function() {
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return timeStringToDate(elm.value, settings);
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};
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// Helper function to set a time input.
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// Takes a Date object or string.
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this.setTime = function(time) {
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elm.value = formatTime(timeToDate(time, settings), settings);
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// Trigger element's change events.
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$(elm).change();
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};
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}; // End fn;
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// Plugin defaults.
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$.fn.timePicker.defaults = {
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step:30,
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startTime: new Date(0, 0, 0, 0, 0, 0),
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endTime: new Date(0, 0, 0, 23, 30, 0),
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separator: ':',
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show24Hours: true
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};
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// Private functions.
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function setTimeVal(elm, sel, $tpDiv, settings) {
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// Update input field
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elm.value = $(sel).text();
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// Trigger element's change events.
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$(elm).change();
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// Keep focus for all but IE (which doesn't like it)
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if (!$.browser.msie) {
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elm.focus();
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}
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// Hide picker
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$tpDiv.hide();
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}
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function formatTime(time, settings) {
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var h = time.getHours();
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var hours = settings.show24Hours ? h : (((h + 11) % 12) + 1);
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var minutes = time.getMinutes();
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return formatNumber(hours) + settings.separator + formatNumber(minutes) + (settings.show24Hours ? '' : ((h < 12) ? ' AM' : ' PM'));
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}
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function formatNumber(value) {
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return (value < 10 ? '0' : '') + value;
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}
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function timeToDate(input, settings) {
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return (typeof input == 'object') ? normaliseTime(input) : timeStringToDate(input, settings);
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}
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function timeStringToDate(input, settings) {
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if (input) {
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var array = input.split(settings.separator);
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var hours = parseFloat(array[0]);
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var minutes = parseFloat(array[1]);
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// Convert AM/PM hour to 24-hour format.
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if (!settings.show24Hours) {
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if (hours === 12 && input.indexOf('AM') !== -1) {
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hours = 0;
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}
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else if (hours !== 12 && input.indexOf('PM') !== -1) {
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hours += 12;
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}
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}
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var time = new Date(0, 0, 0, hours, minutes, 0);
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return normaliseTime(time);
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}
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return null;
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}
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/* Normalise time object to a common date. */
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function normaliseTime(time) {
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time.setFullYear(2001);
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time.setMonth(0);
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time.setDate(0);
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return time;
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}
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})(jQuery);
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