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<?php
namespace Drupal\file_entity\Plugin\Field\FieldFormatter;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\image\Plugin\Field\FieldFormatter\ImageFormatter;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Utility\LinkGeneratorInterface;
class FileImageResponsiveFormatter extends ImageFormatter {
protected $responsiveImageStyleStorage;
protected $imageStyleStorage;
protected $currentUser;
protected $linkGenerator;
public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, EntityStorageInterface $responsive_image_style_storage, EntityStorageInterface $image_style_storage, LinkGeneratorInterface $link_generator, AccountInterface $current_user) {
parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings, $current_user, $image_style_storage);
$this->responsiveImageStyleStorage = $responsive_image_style_storage;
$this->imageStyleStorage = $image_style_storage;
$this->linkGenerator = $link_generator;
$this->currentUser = $current_user;
}
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('entity_type.manager')
->getStorage('responsive_image_style'), $container
->get('entity_type.manager')
->getStorage('image_style'), $container
->get('link_generator'), $container
->get('current_user'));
}
public static function defaultSettings() {
return array(
'responsive_image_style' => '',
'image_link' => '',
);
}
public function viewElements(FieldItemListInterface $items, $langcode) {
$elements = [];
$file = $items
->getEntity();
$responsive_image_style = $this->responsiveImageStyleStorage
->load($this
->getSetting('responsive_image_style'));
$image_styles_to_load = array();
$cache_tags = [];
if ($responsive_image_style) {
$cache_tags = Cache::mergeTags($cache_tags, $responsive_image_style
->getCacheTags());
$image_styles_to_load = $responsive_image_style
->getImageStyleIds();
}
$image_styles = $this->imageStyleStorage
->loadMultiple($image_styles_to_load);
foreach ($image_styles as $image_style) {
$cache_tags = Cache::mergeTags($cache_tags, $image_style
->getCacheTags());
}
$item = $file->_referringItem;
$item_attributes = $item->_attributes;
unset($item->_attributes);
if ($this
->getSetting('image_link')) {
$url = file_url_transform_relative(file_create_url($file
->getFileUri()));
}
$elements[] = array(
'#theme' => 'responsive_image_formatter',
'#item' => $item,
'#item_attributes' => $item_attributes,
'#responsive_image_style_id' => $responsive_image_style ? $responsive_image_style
->id() : '',
'#url' => !empty($url) ? $url : NULL,
'#cache' => array(
'tags' => $cache_tags,
),
);
return $elements;
}
public function prepareView(array $entities_items) {
}
public function settingsForm(array $form, FormStateInterface $form_state) {
$elements = parent::settingsForm($form, $form_state);
$responsive_image_options = array();
$responsive_image_styles = $this->responsiveImageStyleStorage
->loadMultiple();
if ($responsive_image_styles && !empty($responsive_image_styles)) {
foreach ($responsive_image_styles as $machine_name => $responsive_image_style) {
if ($responsive_image_style
->hasImageStyleMappings()) {
$responsive_image_options[$machine_name] = $responsive_image_style
->label();
}
}
}
$elements['responsive_image_style'] = array(
'#title' => t('Responsive image style'),
'#type' => 'select',
'#default_value' => $this
->getSetting('responsive_image_style'),
'#required' => TRUE,
'#options' => $responsive_image_options,
'#description' => array(
'#markup' => $this->linkGenerator
->generate($this
->t('Configure Responsive Image Styles'), new Url('entity.responsive_image_style.collection')),
'#access' => $this->currentUser
->hasPermission('administer responsive image styles'),
),
);
unset($elements['image_link']['#options']['content']);
unset($elements['image_style']);
return $elements;
}
public function settingsSummary() {
$summary = [];
$responsive_image_style = $this->responsiveImageStyleStorage
->load($this
->getSetting('responsive_image_style'));
if ($responsive_image_style) {
$summary[] = t('Responsive image style: @responsive_image_style', array(
'@responsive_image_style' => $responsive_image_style
->label(),
));
$link_types = array(
'file' => t('Linked to file'),
);
if (isset($link_types[$this
->getSetting('image_link')])) {
$summary[] = $link_types[$this
->getSetting('image_link')];
}
}
else {
$summary[] = t('Select a responsive image style.');
}
return $summary;
}
}