Round Date Selector

Drag pointers until desired date and time gets displayed.

https://jsfiddle.net/3j2gpqsy/

Usage

Change values at start, setting the data attributes for each canvas or setting the option start.

<div id="calendar-container-id" class="round-date-selector" data-year="2013" data-month="4" data-day="16">
[...]
</div>

<div id="clock-container-id" class="round-date-selector" data-hour="8" data-minute="13">
[...]
</div>

<script>
    var dateSlider = DateSlider('calendar-container-id', {option: 'value'});
    var clockSlider = ClockSlider('clock-container-id', {option: 'value'});
</script>

Options

Option start can contain values accepted by Date.parse(). start option of Clockslider does not need a preceding date.

Set locale option to change language. Valid options are parameters of Date.toLocaleDateString().

Add format option if necessary. Following characters inside the format string get replaced:

format character	value
d	day [01-31]
m	month [01-12]
y	year
b	month short name [Jan-Dec]
B	month long name [January-December]
a	day short name [Mon-Sun]
A	day long name [Monday-Sunday]
H	hour [00-23]
M	minute [00-59]

Events available are onMove and onChange.

DateSlider(
    'calendar-container-id',
    {
        start: '21 Oct 2011',
        locale: ['en-US', {weekday: 'short', year: 'numeric', month: 'short', day: 'numeric'}],
        format: 'a, d. b y',
        onChange: function (event) {
            console.log(event.value, event.day, event.month, event.year);
        }
    }
);

ClockSlider(
    'clock-container-id',
    {
        start: '00:00',
        format: 'Hh Mm',
        onMove: function (event) {
            event.preventDefault();
            console.log(event.value, event.hour, event.minute);
        }
    }
);

Form values

Selected date and time values are stored inside input fields as ISO 8601 format. Years from 1 to 9999.

<input class="date-input" type="hidden" name="date" value="2013-08-14">

<input class="clock-input" type="hidden" name="time" value="03:00">

Appearance

Modify colors by changing svg attributes stroke, fill and setting options c1slidecolor, c2slidecolor on ClockSlider.

<circle cx="105" cy="105" r="80" stroke="darkolivegreen" stroke-width="1" fill="white" />

<script>
ClockSlider(
    'clock-container-id',
    {
        c1slidecolor: 'rgba(56, 131, 37, 1)',
        c2slidecolor: 'rgba(194, 25, 25, 1)'
    }
);
</script>

Show current time

Disable selector and adjust current time every 1 second.

var dateSlider = DateSlider('calendar-container-id', {
    onMove: function (event) {
        event.preventDefault();
    }
});
var clockSlider = ClockSlider('clock-container-id', {
    onMove: function (event) {
        event.preventDefault();
    }
});
function setDate(date) {
    clockSlider.hour = date.getHours();
    clockSlider.minute = date.getMinutes();
    clockSlider.update();
    dateSlider.day = date.getDate();
    dateSlider.month = date.getMonth();
    dateSlider.year = date.getFullYear();
    dateSlider.update();
}
setDate(new Date());
setInterval(function () { setDate(new Date()); }, 1000);

License

GPLv3 License