chamilo-lms/public/main/inc/lib/formvalidator/Element/DateTimePicker.php

<?php

/* For licensing terms, see /license.txt */

/**
 * Form element to select a date and hour.
 */
class DateTimePicker extends HTML_QuickForm_text
{
    /**
     * DateTimePicker constructor.
     *
     * @param string       $elementName
     * @param string|array $elementLabel
     * @param array        $attributes
     */
    public function __construct($elementName, $elementLabel = null, $attributes = null)
    {
        if (!isset($attributes['id'])) {
            $attributes['id'] = $elementName;
        }
        $attributes['class'] = 'p-component p-inputtext';
        parent::__construct($elementName, $elementLabel, $attributes);
        $this->_appendName = true;
    }

    /**
     * HTML code to display this datepicker.
     *
     * @return string
     */
    public function toHtml()
    {
        if ($this->_flagFrozen) {
            return $this->getFrozenHtml();
        }

        $id = $this->getAttribute('id');
        $value = $this->getValue();

        $formattedValue = '';
        if (!empty($value)) {
            $formattedValue = api_format_date($value, DATE_TIME_FORMAT_LONG_24H);
        }

        $label = $this->getLabel();
        if (is_array($label) && isset($label[0])) {
            $label = $label[0];
        }

        //$resetFieldX = sprintf(get_lang('Reset %s'), $label);

        return '<input '.$this->_getAttrString($this->_attributes).' />'.$this->getElementJS();
    }

    /**
     * @param string $value
     */
    public function setValue($value)
    {
        $value = substr($value, 0, 16);
        $this->updateAttributes(['value' => $value]);
    }

    /**
     * Get the necessary javascript for this datepicker.
     *
     * @return string
     */
    private function getElementJS()
    {
        $js = null;
        $id = $this->getAttribute('id');
        //timeFormat: 'hh:mm'
        $js .= "<script>
            $(function() {
                var config = {
                    altInput: true,
                    altFormat: '".get_lang('F d, Y')." ".get_lang('at')." H:i',
                    enableTime: true,
                    dateFormat: 'Y-m-d H:i',
                    time_24hr: true,
                    wrap: false,
                    locale: {
                      firstDayOfWeek: 1
                    }
                };
                $('#{$id}').flatpickr(config);
            });
        </script>";

        return $js;
    }
}