Let user overwrite all calendar options

[FabulousGee]

User will be able to overwrite all options mentioned here ( https://github.com/mdehoog/Semantic-UI-Calendar ) in an easier, more intuitive way by extending UI persistence like that:

class UI extends \atk4\ui\Persistence\UI
{
    public $date_format = 'd.m.Y';

    public $time_format = 'H:i';

    public $datetime_format = 'd.m.Y H:i:s';
    // 'D, d M Y H:i:s O';

    /**
     * Calendar input first day of week.
     *  0 = sunday;.
     *
     * @var int
     */
    public $firstDayOfWeek = 1;

    public $currency = '€';

	public $yes = 'Ja';
	public $no = 'Nein';

	public $options = array('today' => true,
							'monthFirst' => false,
							'touchReadonly' => true,
							'startMode' => year,
							'ampm' => false,
							'formatInput' => true,
							'multiMonth' => 1,

							'text' => array(
								'days' => ['S', 'M', 'D', 'M', 'D', 'F', 'S'],
								'months' => ['Januar', 'Februar', 'März', 'April', 'Mai', 'Juni', 'Juli', 'August', 'September', 'Oktober', 'November', 'Dezember'],
								'monthsShort' => ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],
								'today' => 'Heute',
								'now' => 'Jetzt',
								'am' => 'AM',
								'pm' => 'PM')
						);
}

[PhilippGrashoff]

Does Calendar FormField still rely on https://github.com/mdehoog/Semantic-UI-Calendar ? Fomantic-UI did great improvements to that calendar and, if not so already, we should use it.

[FabulousGee]

I think so. I am not 100% sure though since I use the latest stable version only.

Anyway, if the new Fomantic-UI uses a similiar way to customize various things it may be even better to have it implemented for easier (future) usage with more backwards-compatibility imho. One would just need to change the options-array then as soon as Fomantic-UI is being used.

Edit:
It's mentioned in line 28 here: https://github.com/atk4/ui/blob/develop/src/FormField/Calendar.php

[ibelar]

Edit:
It's mentioned in line 28 here: https://github.com/atk4/ui/blob/develop/src/FormField/Calendar.php

@FabulousGee - UI is now using Fomantic Calendar module. So the right options can be found here: https://fomantic-ui.com/modules/calendar.html#/settings.
Link indicated in line 28 above should be update to redirect to Fomantic url.

[FabulousGee]

Link indicated in line 28 above should be update to redirect to Fomantic url.

Changed it according to your suggestion.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (develop@308786b). Click here to learn what that means.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##             develop     #777   +/-   ##
==========================================
  Coverage           ?   71.18%           
  Complexity         ?     2246           
==========================================
  Files              ?      119           
  Lines              ?     5328           
  Branches           ?        0           
==========================================
  Hits               ?     3793           
  Misses             ?     1535           
  Partials           ?        0

Impacted Files	Coverage Δ	Complexity Δ
src/Persistence/UI.php	56.79% <ø> (ø)	43 <0> (?)
src/FormField/Calendar.php	73.33% <33.33%> (ø)	13 <0> (?)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 308786b...196a6ea. Read the comment docs.

[romaninsh]

looks good now, thanks for PR!