--- /dev/null
+<?php
+
+namespace Drupal\link\Plugin\Field\FieldFormatter;
+
+use Drupal\Component\Utility\Unicode;
+use Drupal\Core\Field\FieldDefinitionInterface;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\FormatterBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Path\PathValidatorInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Drupal\Core\Url;
+use Drupal\link\LinkItemInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Plugin implementation of the 'link' formatter.
+ *
+ * @FieldFormatter(
+ * id = "link",
+ * label = @Translation("Link"),
+ * field_types = {
+ * "link"
+ * }
+ * )
+ */
+class LinkFormatter extends FormatterBase implements ContainerFactoryPluginInterface {
+
+ /**
+ * The path validator service.
+ *
+ * @var \Drupal\Core\Path\PathValidatorInterface
+ */
+ protected $pathValidator;
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ return new static(
+ $plugin_id,
+ $plugin_definition,
+ $configuration['field_definition'],
+ $configuration['settings'],
+ $configuration['label'],
+ $configuration['view_mode'],
+ $configuration['third_party_settings'],
+ $container->get('path.validator')
+ );
+ }
+
+ /**
+ * Constructs a new LinkFormatter.
+ *
+ * @param string $plugin_id
+ * The plugin_id for the formatter.
+ * @param mixed $plugin_definition
+ * The plugin implementation definition.
+ * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+ * The definition of the field to which the formatter is associated.
+ * @param array $settings
+ * The formatter settings.
+ * @param string $label
+ * The formatter label display setting.
+ * @param string $view_mode
+ * The view mode.
+ * @param array $third_party_settings
+ * Third party settings.
+ * @param \Drupal\Core\Path\PathValidatorInterface $path_validator
+ * The path validator service.
+ */
+ public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, PathValidatorInterface $path_validator) {
+ parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings);
+ $this->pathValidator = $path_validator;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function defaultSettings() {
+ return [
+ 'trim_length' => '80',
+ 'url_only' => '',
+ 'url_plain' => '',
+ 'rel' => '',
+ 'target' => '',
+ ] + parent::defaultSettings();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function settingsForm(array $form, FormStateInterface $form_state) {
+ $elements = parent::settingsForm($form, $form_state);
+
+ $elements['trim_length'] = [
+ '#type' => 'number',
+ '#title' => t('Trim link text length'),
+ '#field_suffix' => t('characters'),
+ '#default_value' => $this->getSetting('trim_length'),
+ '#min' => 1,
+ '#description' => t('Leave blank to allow unlimited link text lengths.'),
+ ];
+ $elements['url_only'] = [
+ '#type' => 'checkbox',
+ '#title' => t('URL only'),
+ '#default_value' => $this->getSetting('url_only'),
+ '#access' => $this->getPluginId() == 'link',
+ ];
+ $elements['url_plain'] = [
+ '#type' => 'checkbox',
+ '#title' => t('Show URL as plain text'),
+ '#default_value' => $this->getSetting('url_plain'),
+ '#access' => $this->getPluginId() == 'link',
+ '#states' => [
+ 'visible' => [
+ ':input[name*="url_only"]' => ['checked' => TRUE],
+ ],
+ ],
+ ];
+ $elements['rel'] = [
+ '#type' => 'checkbox',
+ '#title' => t('Add rel="nofollow" to links'),
+ '#return_value' => 'nofollow',
+ '#default_value' => $this->getSetting('rel'),
+ ];
+ $elements['target'] = [
+ '#type' => 'checkbox',
+ '#title' => t('Open link in new window'),
+ '#return_value' => '_blank',
+ '#default_value' => $this->getSetting('target'),
+ ];
+
+ return $elements;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function settingsSummary() {
+ $summary = [];
+
+ $settings = $this->getSettings();
+
+ if (!empty($settings['trim_length'])) {
+ $summary[] = t('Link text trimmed to @limit characters', ['@limit' => $settings['trim_length']]);
+ }
+ else {
+ $summary[] = t('Link text not trimmed');
+ }
+ if ($this->getPluginId() == 'link' && !empty($settings['url_only'])) {
+ if (!empty($settings['url_plain'])) {
+ $summary[] = t('Show URL only as plain-text');
+ }
+ else {
+ $summary[] = t('Show URL only');
+ }
+ }
+ if (!empty($settings['rel'])) {
+ $summary[] = t('Add rel="@rel"', ['@rel' => $settings['rel']]);
+ }
+ if (!empty($settings['target'])) {
+ $summary[] = t('Open link in new window');
+ }
+
+ return $summary;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function viewElements(FieldItemListInterface $items, $langcode) {
+ $element = [];
+ $entity = $items->getEntity();
+ $settings = $this->getSettings();
+
+ foreach ($items as $delta => $item) {
+ // By default use the full URL as the link text.
+ $url = $this->buildUrl($item);
+ $link_title = $url->toString();
+
+ // If the title field value is available, use it for the link text.
+ if (empty($settings['url_only']) && !empty($item->title)) {
+ // Unsanitized token replacement here because the entire link title
+ // gets auto-escaped during link generation in
+ // \Drupal\Core\Utility\LinkGenerator::generate().
+ $link_title = \Drupal::token()->replace($item->title, [$entity->getEntityTypeId() => $entity], ['clear' => TRUE]);
+ }
+
+ // Trim the link text to the desired length.
+ if (!empty($settings['trim_length'])) {
+ $link_title = Unicode::truncate($link_title, $settings['trim_length'], FALSE, TRUE);
+ }
+
+ if (!empty($settings['url_only']) && !empty($settings['url_plain'])) {
+ $element[$delta] = [
+ '#plain_text' => $link_title,
+ ];
+
+ if (!empty($item->_attributes)) {
+ // Piggyback on the metadata attributes, which will be placed in the
+ // field template wrapper, and set the URL value in a content
+ // attribute.
+ // @todo Does RDF need a URL rather than an internal URI here?
+ // @see \Drupal\Tests\rdf\Kernel\Field\LinkFieldRdfaTest.
+ $content = str_replace('internal:/', '', $item->uri);
+ $item->_attributes += ['content' => $content];
+ }
+ }
+ else {
+ $element[$delta] = [
+ '#type' => 'link',
+ '#title' => $link_title,
+ '#options' => $url->getOptions(),
+ ];
+ $element[$delta]['#url'] = $url;
+
+ if (!empty($item->_attributes)) {
+ $element[$delta]['#options'] += ['attributes' => []];
+ $element[$delta]['#options']['attributes'] += $item->_attributes;
+ // Unset field item attributes since they have been included in the
+ // formatter output and should not be rendered in the field template.
+ unset($item->_attributes);
+ }
+ }
+ }
+
+ return $element;
+ }
+
+ /**
+ * Builds the \Drupal\Core\Url object for a link field item.
+ *
+ * @param \Drupal\link\LinkItemInterface $item
+ * The link field item being rendered.
+ *
+ * @return \Drupal\Core\Url
+ * A Url object.
+ */
+ protected function buildUrl(LinkItemInterface $item) {
+ $url = $item->getUrl() ?: Url::fromRoute('<none>');
+
+ $settings = $this->getSettings();
+ $options = $item->options;
+ $options += $url->getOptions();
+
+ // Add optional 'rel' attribute to link options.
+ if (!empty($settings['rel'])) {
+ $options['attributes']['rel'] = $settings['rel'];
+ }
+ // Add optional 'target' attribute to link options.
+ if (!empty($settings['target'])) {
+ $options['attributes']['target'] = $settings['target'];
+ }
+ $url->setOptions($options);
+
+ return $url;
+ }
+
+}
projects / yaffs-website / blobdiff