FileMediaFormatterBase.php
Same filename in other branches
Namespace
Drupal\file\Plugin\Field\FieldFormatterFile
-
core/
modules/ file/ src/ Plugin/ Field/ FieldFormatter/ FileMediaFormatterBase.php
View source
<?php
namespace Drupal\file\Plugin\Field\FieldFormatter;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Template\Attribute;
/**
* Base class for media file formatter.
*/
abstract class FileMediaFormatterBase extends FileFormatterBase implements FileMediaFormatterInterface {
/**
* Gets the HTML tag for the formatter.
*
* @return string
* The HTML tag of this formatter.
*/
protected function getHtmlTag() {
return static::getMediaType();
}
/**
* {@inheritdoc}
*/
public static function defaultSettings() {
return [
'controls' => TRUE,
'autoplay' => FALSE,
'loop' => FALSE,
'multiple_file_display_type' => 'tags',
] + parent::defaultSettings();
}
/**
* {@inheritdoc}
*/
public function settingsForm(array $form, FormStateInterface $form_state) {
return [
'controls' => [
'#title' => $this->t('Show playback controls'),
'#type' => 'checkbox',
'#default_value' => $this->getSetting('controls'),
],
'autoplay' => [
'#title' => $this->t('Autoplay'),
'#type' => 'checkbox',
'#default_value' => $this->getSetting('autoplay'),
],
'loop' => [
'#title' => $this->t('Loop'),
'#type' => 'checkbox',
'#default_value' => $this->getSetting('loop'),
],
'multiple_file_display_type' => [
'#title' => $this->t('Display of multiple files'),
'#type' => 'radios',
'#options' => [
'tags' => $this->t('Use multiple @tag tags, each with a single source.', [
'@tag' => '<' . $this->getHtmlTag() . '>',
]),
'sources' => $this->t('Use multiple sources within a single @tag tag.', [
'@tag' => '<' . $this->getHtmlTag() . '>',
]),
],
'#default_value' => $this->getSetting('multiple_file_display_type'),
],
];
}
/**
* {@inheritdoc}
*/
public static function isApplicable(FieldDefinitionInterface $field_definition) {
if (!parent::isApplicable($field_definition)) {
return FALSE;
}
/** @var \Symfony\Component\HttpFoundation\File\MimeType\MimeTypeGuesserInterface $extension_mime_type_guesser */
$extension_mime_type_guesser = \Drupal::service('file.mime_type.guesser.extension');
$extension_list = array_filter(preg_split('/\\s+/', $field_definition->getSetting('file_extensions')));
foreach ($extension_list as $extension) {
$mime_type = $extension_mime_type_guesser->guess('fakedFile.' . $extension);
if (static::mimeTypeApplies($mime_type)) {
return TRUE;
}
}
return FALSE;
}
/**
* {@inheritdoc}
*/
public function settingsSummary() {
$summary = [];
$summary[] = $this->t('Playback controls: %controls', [
'%controls' => $this->getSetting('controls') ? $this->t('visible') : $this->t('hidden'),
]);
$summary[] = $this->t('Autoplay: %autoplay', [
'%autoplay' => $this->getSetting('autoplay') ? $this->t('yes') : $this->t('no'),
]);
$summary[] = $this->t('Loop: %loop', [
'%loop' => $this->getSetting('loop') ? $this->t('yes') : $this->t('no'),
]);
switch ($this->getSetting('multiple_file_display_type')) {
case 'tags':
$summary[] = $this->t('Multiple file display: Multiple HTML tags');
break;
case 'sources':
$summary[] = $this->t('Multiple file display: One HTML tag with multiple sources');
break;
}
return $summary;
}
/**
* {@inheritdoc}
*/
public function viewElements(FieldItemListInterface $items, $langcode) {
$elements = [];
$source_files = $this->getSourceFiles($items, $langcode);
if (empty($source_files)) {
return $elements;
}
$attributes = $this->prepareAttributes();
foreach ($source_files as $delta => $files) {
$elements[$delta] = [
'#theme' => $this->getPluginId(),
'#attributes' => $attributes,
'#files' => $files,
'#cache' => [
'tags' => [],
],
];
$cache_tags = [];
foreach ($files as $file) {
$cache_tags = Cache::mergeTags($cache_tags, $file['file']->getCacheTags());
}
$elements[$delta]['#cache']['tags'] = $cache_tags;
}
return $elements;
}
/**
* Prepare the attributes according to the settings.
*
* @param string[] $additional_attributes
* Additional attributes to be applied to the HTML element. Attribute names
* will be used as key and value in the HTML element.
*
* @return \Drupal\Core\Template\Attribute
* Container with all the attributes for the HTML tag.
*/
protected function prepareAttributes(array $additional_attributes = []) {
$attributes = new Attribute();
foreach (array_merge([
'controls',
'autoplay',
'loop',
], $additional_attributes) as $attribute) {
if ($this->getSetting($attribute)) {
$attributes->setAttribute($attribute, $attribute);
}
}
return $attributes;
}
/**
* Check if given MIME type applies to the media type of the formatter.
*
* @param string $mime_type
* The complete MIME type.
*
* @return bool
* TRUE if the MIME type applies, FALSE otherwise.
*/
protected static function mimeTypeApplies($mime_type) {
list($type) = explode('/', $mime_type, 2);
return $type === static::getMediaType();
}
/**
* Gets source files with attributes.
*
* @param \Drupal\Core\Field\EntityReferenceFieldItemListInterface $items
* The item list.
* @param string $langcode
* The language code of the referenced entities to display.
*
* @return array
* Numerically indexed array, which again contains an associative array with
* the following key/values:
* - file => \Drupal\file\Entity\File
* - source_attributes => \Drupal\Core\Template\Attribute
*/
protected function getSourceFiles(EntityReferenceFieldItemListInterface $items, $langcode) {
$source_files = [];
// Because we can have the files grouped in a single media tag, we do a
// grouping in case the multiple file behavior is not 'tags'.
/** @var \Drupal\file\Entity\File $file */
foreach ($this->getEntitiesToView($items, $langcode) as $file) {
if (static::mimeTypeApplies($file->getMimeType())) {
$source_attributes = new Attribute();
$source_attributes->setAttribute('src', $file->createFileUrl())
->setAttribute('type', $file->getMimeType());
if ($this->getSetting('multiple_file_display_type') === 'tags') {
$source_files[] = [
[
'file' => $file,
'source_attributes' => $source_attributes,
],
];
}
else {
$source_files[0][] = [
'file' => $file,
'source_attributes' => $source_attributes,
];
}
}
}
return $source_files;
}
}
Classes
Title | Deprecated | Summary |
---|---|---|
FileMediaFormatterBase | Base class for media file formatter. |
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