/*
* A time picker for jQuery
* Based on original timePicker by Sam Collet (http://www.texotela.co.uk) -
* copyright (c) 2006 Sam Collett (http://www.texotela.co.uk)
*
* Dual licensed under the MIT and GPL licenses.
* Copyright (c) 2009 Anders Fajerson
* @name timePicker
* @version 0.2
* @author Anders Fajerson (http://perifer.se)
* @example $("#mytime").timePicker();
* @example $("#mytime").timePicker({step:30, startTime:"15:00", endTime:"18:00"});
*/
(function($){
$.fn.timePicker = function(options) {
// Build main options before element iteration
var settings = $.extend({}, $.fn.timePicker.defaults, options);
return this.each(function() {
$.timePicker(this, settings);
});
};
$.timePicker = function (elm, settings) {
var e = $(elm)[0];
return e.timePicker || (e.timePicker = new jQuery._timePicker(e, settings));
};
$._timePicker = function(elm, settings) {
var tpOver = false;
var keyDown = false;
var startTime = timeToDate(settings.startTime, settings);
var endTime = timeToDate(settings.endTime, settings);
$(elm).attr('autocomplete', 'OFF'); // Disable browser autocomplete
var times = [];
var time = new Date(startTime); // Create a new date object.
while(time <= endTime) {
times[times.length] = formatTime(time, settings);
time = new Date(time.setMinutes(time.getMinutes() + settings.step));
}
var $tpDiv = $('<div class="time-picker'+ (settings.show24Hours ? '' : ' time-picker-12hours') +'"></div>');
var $tpList = $('<ul></ul>');
// Build the list.
for(var i = 0; i < times.length; i++) {
if (times[i] == settings.selectedTime) {
$tpList.append('<li class="selected">' + times[i] + "</li>");
} else {
$tpList.append("<li>" + times[i] + "</li>");
}
}
$tpDiv.append($tpList);
// Append the timPicker to the body and position it.
var elmOffset = $(elm).offset();
$tpDiv.appendTo('body').css({'top':elmOffset.top+20, 'left':elmOffset.left}).hide();
// Store the mouse state, used by the blur event. Use mouseover instead of
// mousedown since Opera fires blur before mousedown.
$tpDiv.mouseover(function() {
tpOver = true;
}).mouseout(function() {
tpOver = false;
});
$("li", $tpList).mouseover(function() {
if (!keyDown) {
$("li.selected", $tpDiv).removeClass("selected");
$(this).addClass("selected");
}
}).mousedown(function() {
tpOver = true;
}).click(function() {
setTimeVal(elm, this, $tpDiv, settings);
tpOver = false;
});
var showPicker = function() {
if ($tpDiv.is(":visible")) {
return false;
}
$("li", $tpDiv).removeClass("selected");
// Show picker. This has to be done before scrollTop is set since that
// can't be done on hidden elements.
$tpDiv.show();
// Try to find a time in the list that matches the entered time.
var time = elm.value ? timeStringToDate(elm.value, settings) : startTime;
var startMin = startTime.getHours() * 60 + startTime.getMinutes();
var min = (time.getHours() * 60 + time.getMinutes()) - startMin;
var steps = Math.round(min / settings.step);
var roundTime = normaliseTime(new Date(0, 0, 0, 0, (steps * settings.step + startMin), 0));
roundTime = (startTime < roundTime && roundTime <= endTime) ? roundTime : startTime;
var $matchedTime = $("li:contains(" + formatTime(roundTime, settings) + ")", $tpDiv);
if ($matchedTime.length) {
$matchedTime.addClass("selected");
// Scroll to matched time.
$tpDiv[0].scrollTop = $matchedTime[0].offsetTop;
}
return true;
};
// Attach to click as well as focus so timePicker can be shown again when
// clicking on the input when it already has focus.
$(elm).focus(showPicker).click(showPicker);
// Hide timepicker on blur
$(elm).blur(function() {
if (!tpOver) {
$tpDiv.hide();
}
});
// Keypress doesn't repeat on Safari for non-text keys.
// Keydown doesn't repeat on Firefox and Opera on Mac.
// Using kepress for Opera and Firefox and keydown for the rest seems to
// work with up/down/enter/esc.
var event = ($.browser.opera || $.browser.mozilla) ? 'keypress' : 'keydown';
$(elm)[event](function(e) {
var $selected;
keyDown = true;
var top = $tpDiv[0].scrollTop;
switch (e.keyCode) {
case 38: // Up arrow.
// Just show picker if it's hidden.
if (showPicker()) {
return false;
};
$selected = $("li.selected", $tpList);
var prev = $selected.prev().addClass("selected")[0];
if (prev) {
$selected.removeClass("selected");
// Scroll item into view.
if (prev.offsetTop < top) {
$tpDiv[0].scrollTop = top - prev.offsetHeight;
}
}
else {
// Loop to next item.
$selected.removeClass("selected");
prev = $("li:last", $tpList).addClass("selected")[0];
$tpDiv[0].scrollTop = prev.offsetTop - prev.offsetHeight;
}
return false;
break;
case 40: // Down arrow, similar in behaviour to up arrow.
if (showPicker()) {
return false;
};
$selected = $("li.selected", $tpList);
var next = $selected.next().addClass("selected")[0];
if (next) {
$selected.removeClass("selected");
if (next.offsetTop + next.offsetHeight > top + $tpDiv[0].offsetHeight) {
$tpDiv[0].scrollTop = top + next.offsetHeight;
}
}
else {
$selected.removeClass("selected");
next = $("li:first", $tpList).addClass("selected")[0];
$tpDiv[0].scrollTop = 0;
}
return false;
break;
case 13: // Enter
if ($tpDiv.is(":visible")) {
var sel = $("li.selected", $tpList)[0];
setTimeVal(elm, sel, $tpDiv, settings);
}
return false;
break;
case 27: // Esc
$tpDiv.hide();
return false;
break;
}
return true;
});
$(elm).keyup(function(e) {
keyDown = false;
});
// Helper function to get an inputs current time as Date object.
// Returns a Date object.
this.getTime = function() {
return timeStringToDate(elm.value, settings);
};
// Helper function to set a time input.
// Takes a Date object.
this.setTime = function(time) {
elm.value = formatTime(normaliseTime(time), settings);
// Trigger element's change events.
$(elm).change();
};
}; // End fn;
// Plugin defaults.
$.fn.timePicker.defaults = {
step:30,
startTime: new Date(0, 0, 0, 0, 0, 0),
endTime: new Date(0, 0, 0, 23, 30, 0),
selectedTime: new Date(0, 0, 0, 0, 0, 0),
separator: ':',
show24Hours: true
};
// Private functions.
function setTimeVal(elm, sel, $tpDiv, settings) {
// Update input field
elm.value = $(sel).text();
// Trigger element's change events.
$(elm).change();
// Keep focus for all but IE (which doesn't like it)
if (!$.browser.msie) {
elm.focus();
}
// Hide picker
$tpDiv.hide();
}
function formatTime(time, settings) {
var h = time.getHours();
var hours = settings.show24Hours ? h : (((h + 11) % 12) + 1);
var minutes = time.getMinutes();
return formatNumber(hours) + settings.separator + formatNumber(minutes) + (settings.show24Hours ? '' : ((h < 12) ? ' AM' : ' PM'));
}
function formatNumber(value) {
return (value < 10 ? '0' : '') + value;
}
function timeToDate(input, settings) {
return (typeof input == 'object') ? normaliseTime(input) : timeStringToDate(input, settings);
}
function timeStringToDate(input, settings) {
if (input) {
var array = input.split(settings.separator);
var hours = parseFloat(array[0]);
var minutes = parseFloat(array[1]);
// Convert AM/PM hour to 24-hour format.
if (!settings.show24Hours) {
if (hours === 12 && input.substr('AM') !== -1) {
hours = 0;
}
else if (hours !== 12 && input.indexOf('PM') !== -1) {
hours += 12;
}
}
var time = new Date(0, 0, 0, hours, minutes, 0);
return normaliseTime(time);
}
return null;
}
/* Normalise time object to a common date. */
function normaliseTime(time) {
time.setFullYear(2001);
time.setMonth(0);
time.setDate(0);
return time;
}
})(jQuery);