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<?php
namespace Drupal\uc_store\Element;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
class UcPrice extends Element\FormElement {
public function getInfo() {
$class = get_class($this);
$config = \Drupal::config('uc_store.settings')
->get('currency');
$sign_flag = $config['symbol_after'];
$currency_sign = $config['symbol'];
return [
'#input' => TRUE,
'#size' => 15,
'#maxlength' => 15,
'#process' => [
[
$class,
'processAjaxForm',
],
],
'#element_validate' => [
[
$class,
'validatePrice',
],
],
'#pre_render' => [
[
$class,
'preRenderPrice',
],
],
'#theme' => 'input__textfield',
'#theme_wrappers' => [
'form_element',
],
'#field_prefix' => $sign_flag ? '' : $currency_sign,
'#field_suffix' => $sign_flag ? $currency_sign : '',
'#allow_negative' => FALSE,
'#empty_zero' => TRUE,
];
}
public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
if ($input === FALSE && !empty($element['#default_value'])) {
$exact = rtrim(rtrim(number_format($element['#default_value'], 6, '.', ''), '0'), '.');
$round = number_format($element['#default_value'], \Drupal::config('uc_store.settings')
->get('currency.precision'), '.', '');
return $exact == rtrim($round, '0') ? $round : $exact;
}
elseif (empty($input) && empty($element['#required']) && !empty($element['#empty_zero'])) {
return 0;
}
}
public static function validatePrice(&$element, FormStateInterface $form_state, &$complete_form) {
$value = $element['#value'];
if ($value === '') {
return;
}
$name = empty($element['#title']) ? $element['#parents'][0] : $element['#title'];
if (!is_numeric($value)) {
$form_state
->setError($element, t('%name must be a number.', [
'%name' => $name,
]));
return;
}
if (empty($element['#allow_negative']) && $value < 0) {
$form_state
->setError($element, t('%name must not be negative.', [
'%name' => $name,
]));
}
}
public static function preRenderPrice(array $element) {
$element['#attributes']['type'] = 'number';
$element['#attributes']['step'] = 'any';
if (empty($element['#allow_negative'])) {
$element['#attributes']['min'] = 0;
}
Element::setAttributes($element, [
'id',
'name',
'value',
'size',
'maxlength',
'placeholder',
]);
static::setAttributes($element, [
'form-uc-price',
]);
return $element;
}
}