/**
* Returns the plugin ID for a given toolkit and operation.
*
* @param \Drupal\Core\ImageToolkit\ImageToolkitInterface $toolkit
* The toolkit instance.
* @param string $operation
* The operation (e.g. "crop").
*
* @return string
* The plugin ID.
*
* @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
* When no plugin is available.
*/
protected function getToolkitOperationPluginId(ImageToolkitInterface $toolkit, $operation)
{
$toolkit_id = $toolkit->getPluginId();
$definitions = $this->getDefinitions();
$definitions = array_filter($definitions, function ($definition) use($toolkit_id, $operation) {
return $definition['toolkit'] == $toolkit_id && $definition['operation'] == $operation;
});
if (!$definitions) {
// If this image toolkit plugin is a derivative and returns no operation,
// try once again with its base plugin.
$base_toolkit_id = $toolkit->getBaseId();
if ($toolkit_id != $base_toolkit_id && !empty($base_toolkit_id)) {
$base_toolkit = $this->toolkitManager->createInstance($base_toolkit_id);
return $this->getToolkitOperationPluginId($base_toolkit, $operation);
}
$message = SafeMarkup::format("No image operation plugin for '@toolkit' toolkit and '@operation' operation.", array('@toolkit' => $toolkit_id, '@operation' => $operation));
throw new PluginNotFoundException($toolkit_id . '.' . $operation, $message);
} else {
// Pickup the first plugin found.
// @todo In https://www.drupal.org/node/2110591 we'll return here the UI
// selected plugin or the first found if missed.
$definition = reset($definitions);
return $definition['id'];
}
}
/**
* {@inheritdoc}
*/
public function getToolkitOperation(ImageToolkitInterface $toolkit, $operation)
{
$plugin_id = $this->getToolkitOperationPluginId($toolkit->getPluginId(), $operation);
return $this->createInstance($plugin_id, array(), $toolkit);
}