public function ImageFormatter::viewElements in Zircon Profile 8
Same name and namespace in other branches
- 8.0 core/modules/image/src/Plugin/Field/FieldFormatter/ImageFormatter.php \Drupal\image\Plugin\Field\FieldFormatter\ImageFormatter::viewElements()
Builds a renderable array for a field value.
Parameters
\Drupal\Core\Field\FieldItemListInterface $items: The field values to be rendered.
string $langcode: The language that should be used to render the field.
Return value
array A renderable array for $items, as an array of child elements keyed by consecutive numeric indexes starting from 0.
Overrides FormatterInterface::viewElements
File
- core/
modules/ image/ src/ Plugin/ Field/ FieldFormatter/ ImageFormatter.php, line 170 - Contains \Drupal\image\Plugin\Field\FieldFormatter\ImageFormatter.
Class
- ImageFormatter
- Plugin implementation of the 'image' formatter.
Namespace
Drupal\image\Plugin\Field\FieldFormatterCode
public function viewElements(FieldItemListInterface $items, $langcode) {
$elements = array();
$files = $this
->getEntitiesToView($items, $langcode);
// Early opt-out if the field is empty.
if (empty($files)) {
return $elements;
}
$url = NULL;
$image_link_setting = $this
->getSetting('image_link');
// Check if the formatter involves a link.
if ($image_link_setting == 'content') {
$entity = $items
->getEntity();
if (!$entity
->isNew()) {
$url = $entity
->urlInfo();
}
}
elseif ($image_link_setting == 'file') {
$link_file = TRUE;
}
$image_style_setting = $this
->getSetting('image_style');
// Collect cache tags to be added for each item in the field.
$cache_tags = array();
if (!empty($image_style_setting)) {
$image_style = $this->imageStyleStorage
->load($image_style_setting);
$cache_tags = $image_style
->getCacheTags();
}
foreach ($files as $delta => $file) {
if (isset($link_file)) {
$image_uri = $file
->getFileUri();
$url = Url::fromUri(file_create_url($image_uri));
}
$cache_tags = Cache::mergeTags($cache_tags, $file
->getCacheTags());
// Extract field item attributes for the theme function, and unset them
// from the $item so that the field template does not re-render them.
$item = $file->_referringItem;
$item_attributes = $item->_attributes;
unset($item->_attributes);
$elements[$delta] = array(
'#theme' => 'image_formatter',
'#item' => $item,
'#item_attributes' => $item_attributes,
'#image_style' => $image_style_setting,
'#url' => $url,
'#cache' => array(
'tags' => $cache_tags,
),
);
}
return $elements;
}