a11y_datetime for REDAXO

a11y_datetime is an accessibility-focused fork of flatpickr.

Why the addon is still named flatpickr

The addon package name stays flatpickr on purpose to keep existing REDAXO installations, installer updates, and project references fully compatible. Internally, the frontend assets have been migrated to a11y_datetime.

Differences from original flatpickr

This addon uses the a11y_datetime fork and is no longer a strict visual/behavioral 1:1 clone of original flatpickr in every detail.

Key differences:

• Accessibility-first behavior (ARIA, keyboard flow, live announcements).
• Additional fork options are passed through via data-* attributes.
• Some defaults intentionally differ from original flatpickr.

Examples of changed/new defaults:

• focusOpens: default false
• announceChanges: default true
• monthYearWheel: default true
• showMonthNavArrows: default false (arrows are optional)

a11y_datetime Links

Website: https://friendsofredaxo.github.io/a11y_datetime/

GitHub: https://github.com/FriendsOfREDAXO/a11y_datetime

Howto install

Just install it from the REDAXO installer

Howto use in YForm

{"class": "flatpickr","data-locale":"de","data-enableTime":"true"}

You can also use the new class name:

{"class": "a11y_datetime","data-locale":"de","data-enableTime":"true"}

Dedicated YForm field flatpickr

The addon ships with its own YForm value field flatpickr for common picker setups directly in YForm Manager.

Covered standard modes:

• Date
• Date & time
• Time
• Date range

Covered standard settings:

• Locale
• dateFormat / altFormat
• minuteIncrement
• enableSeconds
• time_24hr
• allowInput
• focusOpens
• inline
• monthYearWheel
• showMonthNavArrows
• showMonths - maximum number of calendar panels shown at the same time; on narrow widths it is automatically reduced to 1 or 2
• yearWheelManualInput
• yearRange - year range relative to today, e.g. {"past":10,"future":10} for 10 years back and 10 years ahead
• fixed disabled dates

For special cases, the field also provides an expert JSON textarea. That JSON is merged after the common settings.

dateFormat can often stay empty. In that case, the storage format is chosen automatically based on the selected field type. altFormat controls the visible display, including the list view. If altFormat is filled, that format string is used for list output.

External disabled-date logic can be attached via a global JavaScript callback path such as window.MyApp.flatpickrDisabledDates. The callback may return:

• an array of disable values
• a Flatpickr disable callback function

Notes:

• For date ranges, the database column should be varchar or text.
• Set the database field type manually to match the selected field type: Date = date, Date & Time = datetime, Time = time, Date range = varchar or text.
• Inline editing in YForm list view is intentionally not part of this first version; the list view currently provides a compact preview instead of fragile direct editing.

Howto use in Modules

<input type="date" class="form-control flatpickr" data-locale="de" data-enableTime="true" name="REX_INPUT_VALUE[1]" value="REX_VALUE[1]">

Optional: enable opening on focus for a field:

<input type="text" class="form-control a11y_datetime" data-focusOpens="true" name="event_start">

Howto RangeField over 2 input fields

{"class": "flatpickr_range","data-locale":"de","data-enableTime":"true", "data-rangefield":"#id"}

or

{"class": "a11y_datetime_range","data-locale":"de","data-enableTime":"true", "data-rangefield":"#id"}

Set the view just for date fields.

If you don't want to see the time in a date-field, don't use the timepicker and set an alternative View.

Just set the data-altFormat. 😀

{"class":"flatpickr","data-altFormat":"j. F, Y"}

Only time picker (no calendar)

If you only want a time picker without a calendar, set data-enableTime="true" and data-noCalendar="true". When both are set, the default dateFormat and altFormat fall back to H:i.

{"class":"flatpickr","data-locale":"de","data-enableTime":"true","data-noCalendar":"true"}

Open on focus (optional)

By default, the picker does not open automatically when the input receives focus via Tab. If you want the legacy behavior for a specific field, enable it explicitly:

{"class":"flatpickr","data-focusOpens":"true"}

Weekday time windows (data-timeRules)

You can pass the new timeRules option as JSON via data-timeRules.

Example: Monday-Friday 08:00-17:00, Saturday 10:00-14:00.

{"class":"flatpickr","data-enableTime":"true","data-timeRules":"[{\"days\":[1,2,3,4,5],\"from\":\"08:00\",\"to\":\"17:00\"},{\"days\":[6],\"from\":\"10:00\",\"to\":\"14:00\"}]"}

Note: weekday indices follow JavaScript (0=Sunday, 1=Monday, ..., 6=Saturday).

Important: If data-timeRules is set and a weekday has no matching rule, that weekday becomes not selectable. In the example above, Sunday (0) is disabled.

Month/year wheel (data-monthYearWheel)

You can enable the header month/year wheel per field.

{"class":"flatpickr","data-monthYearWheel":"true","data-yearRange":"{\"past\":10,\"future\":10}","data-yearWheelManualInput":"true"}

data-yearRange expects a JSON object with past and future.

You can re-enable header arrows explicitly:

{"class":"flatpickr","data-monthYearWheel":"true","data-showMonthNavArrows":"true"}

Show multiple calendar pages side-by-side (useful for ranges):

{"class":"flatpickr_range","data-showMonths":"3","data-rangefield":"#id"}

Supported data-* attributes

All relevant options of the vendor (a11y_datetime / flatpickr) can be set per field via data-* attributes. The attribute name mirrors the option name (e.g. data-enableTime, data-time_24hr).

Addon defaults (differ from vendor defaults)

These options are always applied by the addon and can be overridden by the corresponding data-* attribute:

Attribute	Option	Type	Default
data-locale	locale	Locale key (e.g. de, en)	de
data-altInput	altInput	true/false	true
data-altFormat	altFormat	Format string	j. F, Y H:i (or H:i for time-only)
data-time_24hr	time_24hr	true/false	true
data-focusOpens	focusOpens	true/false	false
data-monthYearWheel	monthYearWheel	true/false	true
data-showMonthNavArrows	showMonthNavArrows	true/false	false
data-showMonths	showMonths	Integer (1, 2, 3, ...)	1
data-yearWheelManualInput	yearWheelManualInput	true/false	true
data-yearRange	yearRange	JSON object {"past":N,"future":N}	{"past":10,"future":10}
data-enableTime	enableTime	true/false	false
data-noCalendar	noCalendar	true/false	false
data-timeRules	timeRules	JSON array	[]
data-disabled	disable	Comma-separated list of dates	[]

Pass-through options (only applied when the attribute is present)

For every other supported vendor option, add a data-<option> attribute and the value is forwarded to the picker. If the attribute is omitted, the vendor default applies.

Boolean options (true/false):

data-allowInput, data-allowInvalidPreload, data-animate, data-announceChanges, data-autoFillDefaultTime, data-clickOpens, data-closeOnSelect, data-disableMobile, data-enableSeconds, data-inline, data-shorthandCurrentMonth, data-showCloseButton, data-showTitleBar, data-static, data-weekNumbers, data-wrap

String options:

Attribute	Option	Allowed values / format
data-altInputClass	altInputClass	CSS class name
data-ariaDateFormat	ariaDateFormat	Format string
data-calendarTitle	calendarTitle	Text
data-conjunction	conjunction	Text between multiple dates
data-dateFormat	dateFormat	Format string
data-defaultDate	defaultDate	Date string
data-initialDayFocus	initialDayFocus	today / selected / firstAvailable
data-maxDate	maxDate	Date string
data-maxTime	maxTime	Time string (HH:MM)
data-minDate	minDate	Date string
data-minTime	minTime	Time string (HH:MM)
data-mode	mode	single / multiple / range / time
data-monthSelectorType	monthSelectorType	dropdown / static
data-nextArrow	nextArrow	HTML/text for next arrow
data-now	now	Date string
data-position	position	auto, above, below, auto left, ..., below right
data-prevArrow	prevArrow	HTML/text for previous arrow

Integer/number options:

data-defaultHour, data-defaultMinute, data-defaultSeconds, data-hourIncrement, data-minuteIncrement

List options (comma-separated):

Attribute	Option
data-disabled	disable
data-enable	enable

Range pickers (.flatpickr_range / .a11y_datetime_range) accept the same attributes plus data-rangefield (CSS selector of the second input).

Hooks (onChange, onOpen, ...) cannot be configured via data-* attributes.

Disable dates

You can disable dates via a comma seprated list. The attribute ist data-disabled.

Example:

{"class": "flatpickr","data-locale":"de","data-enableTime":"true", "data-disabled":"2022-12-11,2022-12-24,2022-12-25"}

Author

Friends Of REDAXO

• http://www.redaxo.org
• https://github.com/FriendsOfREDAXO

Project lead Thomas Skerbis

Vendor https://github.com/FriendsOfREDAXO/a11y_datetime