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<?php
namespace Drupal\editor\Plugin;
use Drupal\Core\Plugin\DefaultPluginManager;
use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
/**
* Configurable text editor manager.
*
* @see \Drupal\editor\Annotation\Editor
* @see \Drupal\editor\Plugin\EditorPluginInterface
* @see \Drupal\editor\Plugin\EditorBase
* @see plugin_api
*/
class EditorManager extends DefaultPluginManager {
/**
* Constructs an EditorManager object.
*
* @param \Traversable $namespaces
* An object that implements \Traversable which contains the root paths
* keyed by the corresponding namespace to look for plugin implementations.
* @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
* Cache backend instance to use.
* @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
* The module handler to invoke the alter hook with.
*/
public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
parent::__construct('Plugin/Editor', $namespaces, $module_handler, 'Drupal\editor\Plugin\EditorPluginInterface', 'Drupal\editor\Annotation\Editor');
$this->alterInfo('editor_info');
$this->setCacheBackend($cache_backend, 'editor_plugins');
}
/**
* Populates a key-value pair of available text editors.
*
* @return array
* An array of translated text editor labels, keyed by ID.
*/
public function listOptions() {
$options = [];
foreach ($this->getDefinitions() as $key => $definition) {
$options[$key] = $definition['label'];
}
return $options;
}
/**
* Retrieves text editor libraries and JavaScript settings.
*
* @param array $format_ids
* An array of format IDs as returned by array_keys(filter_formats()).
*
* @return array
* An array of attachments, for use with #attached.
*
* @see \Drupal\Core\Render\AttachmentsResponseProcessorInterface::processAttachments()
*/
public function getAttachments(array $format_ids) {
$attachments = ['library' => []];
$settings = [];
foreach ($format_ids as $format_id) {
$editor = editor_load($format_id);
if (!$editor) {
continue;
}
$plugin = $this->createInstance($editor->getEditor());
$plugin_definition = $plugin->getPluginDefinition();
// Libraries.
$attachments['library'] = array_merge($attachments['library'], $plugin->getLibraries($editor));
// Format-specific JavaScript settings.
$settings['editor']['formats'][$format_id] = [
'format' => $format_id,
'editor' => $editor->getEditor(),
'editorSettings' => $plugin->getJSSettings($editor),
'editorSupportsContentFiltering' => $plugin_definition['supports_content_filtering'],
'isXssSafe' => $plugin_definition['is_xss_safe'],
];
}
// Allow other modules to alter all JavaScript settings.
$this->moduleHandler->alter('editor_js_settings', $settings);
if (empty($attachments['library']) && empty($settings)) {
return [];
}
$attachments['drupalSettings'] = $settings;
return $attachments;
}
}