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<?php
namespace Drupal\Core\Field\Plugin\Field\FieldFormatter;
use Drupal\Core\Field\AllowedTagsXssTrait;
use Drupal\Core\Field\FormatterBase;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;
abstract class NumericFormatterBase extends FormatterBase {
use AllowedTagsXssTrait;
public function settingsForm(array $form, FormStateInterface $form_state) {
$options = array(
'' => t('- None -'),
'.' => t('Decimal point'),
',' => t('Comma'),
' ' => t('Space'),
chr(8201) => t('Thin space'),
"'" => t('Apostrophe'),
);
$elements['thousand_separator'] = array(
'#type' => 'select',
'#title' => t('Thousand marker'),
'#options' => $options,
'#default_value' => $this
->getSetting('thousand_separator'),
'#weight' => 0,
);
$elements['prefix_suffix'] = array(
'#type' => 'checkbox',
'#title' => t('Display prefix and suffix'),
'#default_value' => $this
->getSetting('prefix_suffix'),
'#weight' => 10,
);
return $elements;
}
public function settingsSummary() {
$summary = array();
$summary[] = $this
->numberFormat(1234.123456789);
if ($this
->getSetting('prefix_suffix')) {
$summary[] = t('Display with prefix and suffix.');
}
return $summary;
}
public function viewElements(FieldItemListInterface $items, $langcode) {
$elements = array();
$settings = $this
->getFieldSettings();
foreach ($items as $delta => $item) {
$output = $this
->numberFormat($item->value);
if ($this
->getSetting('prefix_suffix')) {
$prefixes = isset($settings['prefix']) ? array_map(array(
'Drupal\\Core\\Field\\FieldFilteredMarkup',
'create',
), explode('|', $settings['prefix'])) : array(
'',
);
$suffixes = isset($settings['suffix']) ? array_map(array(
'Drupal\\Core\\Field\\FieldFilteredMarkup',
'create',
), explode('|', $settings['suffix'])) : array(
'',
);
$prefix = count($prefixes) > 1 ? $this
->formatPlural($item->value, $prefixes[0], $prefixes[1]) : $prefixes[0];
$suffix = count($suffixes) > 1 ? $this
->formatPlural($item->value, $suffixes[0], $suffixes[1]) : $suffixes[0];
$output = $prefix . $output . $suffix;
}
if (isset($item->_attributes) && $item->value != $output) {
$item->_attributes += array(
'content' => $item->value,
);
}
$elements[$delta] = array(
'#markup' => $output,
);
}
return $elements;
}
protected abstract function numberFormat($number);
}