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<?php
namespace Drupal\link\Plugin\Field\FieldType;
use Drupal\Component\Utility\Random;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemBase;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\TypedData\DataDefinition;
use Drupal\Core\TypedData\MapDataDefinition;
use Drupal\Core\Url;
use Drupal\link\LinkItemInterface;
class LinkItem extends FieldItemBase implements LinkItemInterface {
public static function defaultFieldSettings() {
return array(
'title' => DRUPAL_OPTIONAL,
'link_type' => LinkItemInterface::LINK_GENERIC,
) + parent::defaultFieldSettings();
}
public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
$properties['uri'] = DataDefinition::create('uri')
->setLabel(t('URI'));
$properties['title'] = DataDefinition::create('string')
->setLabel(t('Link text'));
$properties['options'] = MapDataDefinition::create()
->setLabel(t('Options'));
return $properties;
}
public static function schema(FieldStorageDefinitionInterface $field_definition) {
return array(
'columns' => array(
'uri' => array(
'description' => 'The URI of the link.',
'type' => 'varchar',
'length' => 2048,
),
'title' => array(
'description' => 'The link text.',
'type' => 'varchar',
'length' => 255,
),
'options' => array(
'description' => 'Serialized array of options for the link.',
'type' => 'blob',
'size' => 'big',
'serialize' => TRUE,
),
),
'indexes' => array(
'uri' => array(
array(
'uri',
30,
),
),
),
);
}
public function fieldSettingsForm(array $form, FormStateInterface $form_state) {
$element = array();
$element['link_type'] = array(
'#type' => 'radios',
'#title' => t('Allowed link type'),
'#default_value' => $this
->getSetting('link_type'),
'#options' => array(
static::LINK_INTERNAL => t('Internal links only'),
static::LINK_EXTERNAL => t('External links only'),
static::LINK_GENERIC => t('Both internal and external links'),
),
);
$element['title'] = array(
'#type' => 'radios',
'#title' => t('Allow link text'),
'#default_value' => $this
->getSetting('title'),
'#options' => array(
DRUPAL_DISABLED => t('Disabled'),
DRUPAL_OPTIONAL => t('Optional'),
DRUPAL_REQUIRED => t('Required'),
),
);
return $element;
}
public static function generateSampleValue(FieldDefinitionInterface $field_definition) {
$random = new Random();
if ($field_definition
->getItemDefinition()
->getSetting('link_type') & LinkItemInterface::LINK_EXTERNAL) {
$tlds = array(
'com',
'net',
'gov',
'org',
'edu',
'biz',
'info',
);
$domain_length = mt_rand(7, 15);
switch ($field_definition
->getSetting('title')) {
case DRUPAL_DISABLED:
$values['title'] = '';
break;
case DRUPAL_REQUIRED:
$values['title'] = $random
->sentences(4);
break;
case DRUPAL_OPTIONAL:
$values['title'] = mt_rand(0, 1) ? $random
->sentences(4) : '';
break;
}
$values['uri'] = 'http://www.' . $random
->word($domain_length) . '.' . $tlds[mt_rand(0, sizeof($tlds) - 1)];
}
else {
$values['uri'] = 'base:' . $random
->name(mt_rand(1, 64));
}
return $values;
}
public function isEmpty() {
$value = $this
->get('uri')
->getValue();
return $value === NULL || $value === '';
}
public function isExternal() {
return $this
->getUrl()
->isExternal();
}
public static function mainPropertyName() {
return 'uri';
}
public function getUrl() {
return Url::fromUri($this->uri);
}
public function setValue($values, $notify = TRUE) {
if (isset($values) && !is_array($values)) {
$values = [
static::mainPropertyName() => $values,
];
}
if (isset($values)) {
$values += [
'options' => [],
];
}
if (is_string($values['options'])) {
$values['options'] = unserialize($values['options']);
}
parent::setValue($values, $notify);
}
}