public function AdvancedPluginSelectorBase::validateSelectorForm in Plugin 8.2

Validates the selector form.

Parameters

mixed[] $form: The selector form as built by static::buildSelectorForm().

\Drupal\Core\Form\FormStateInterface $form_state: The form state for $form. This often is not the complete (global) form state.

Overrides PluginSelectorInterface::validateSelectorForm

File

src/Plugin/Plugin/PluginSelector/AdvancedPluginSelectorBase.php, line 145

Class

AdvancedPluginSelectorBase

Provides a default base for most plugin selectors.

Namespace

Drupal\plugin\Plugin\Plugin\PluginSelector

Code

public function validateSelectorForm(array &$form, FormStateInterface $form_state) {
  $values = $form_state
    ->getValues();
  $plugin_id = NestedArray::getValue($values, array_merge($form['container']['#parents'], array(
    'select',
    'container',
    'plugin_id',
  )));
  $selected_plugin = $this
    ->getSelectedPlugin();
  if (!$selected_plugin && $plugin_id || $selected_plugin && $plugin_id != $selected_plugin
    ->getPluginId()) {

    // Keep track of all previously selected plugins so their configuration
    // does not get lost.
    if (isset($this
      ->getPreviouslySelectedPlugins()[$plugin_id])) {
      $this
        ->setSelectedPlugin($this
        ->getPreviouslySelectedPlugins()[$plugin_id]);
    }
    elseif ($plugin_id) {
      $this
        ->setSelectedPlugin($this->selectablePluginFactory
        ->createInstance($plugin_id));
    }
    else {
      $this
        ->resetSelectedPlugin();
    }

    // If a (different) plugin was chosen and its form must be displayed,
    // rebuild the form.
    if ($this
      ->getCollectPluginConfiguration() && $this
      ->getSelectedPlugin() instanceof PluginFormInterface) {
      $form_state
        ->setRebuild();
    }
  }
  elseif ($this
    ->getCollectPluginConfiguration() && $selected_plugin instanceof PluginFormInterface) {
    $selected_plugin
      ->validateConfigurationForm($form['container']['plugin_form'], $form_state);
  }
}