+<?php
+
+/**
+ * @file
+ * Hooks provided by the Field UI module.
+ */
+
+/**
+ * @addtogroup field_types
+ * @{
+ */
+
+/**
+ * Allow modules to add settings to field formatters provided by other modules.
+ *
+ * @param \Drupal\Core\Field\FormatterInterface $plugin
+ * The instantiated field formatter plugin.
+ * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+ * The field definition.
+ * @param $view_mode
+ * The entity view mode.
+ * @param array $form
+ * The (entire) configuration form array.
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
+ * The form state.
+ *
+ * @return array
+ * Returns the form array to be built.
+ *
+ * @see \Drupal\field_ui\DisplayOverView
+ */
+function hook_field_formatter_third_party_settings_form(\Drupal\Core\Field\FormatterInterface $plugin, \Drupal\Core\Field\FieldDefinitionInterface $field_definition, $view_mode, $form, \Drupal\Core\Form\FormStateInterface $form_state) {
+ $element = [];
+ // Add a 'my_setting' checkbox to the settings form for 'foo_formatter' field
+ // formatters.
+ if ($plugin->getPluginId() == 'foo_formatter') {
+ $element['my_setting'] = [
+ '#type' => 'checkbox',
+ '#title' => t('My setting'),
+ '#default_value' => $plugin->getThirdPartySetting('my_module', 'my_setting'),
+ ];
+ }
+ return $element;
+}
+
+/**
+ * Allow modules to add settings to field widgets provided by other modules.
+ *
+ * @param \Drupal\Core\Field\WidgetInterface $plugin
+ * The instantiated field widget plugin.
+ * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
+ * The field definition.
+ * @param $form_mode
+ * The entity form mode.
+ * @param array $form
+ * The (entire) configuration form array.
+ * @param \Drupal\Core\Form\FormStateInterface $form_state
+ * The form state.
+ *
+ * @return array
+ * Returns the form array to be built.
+ *
+ * @see \Drupal\field_ui\FormDisplayOverView
+ */
+function hook_field_widget_third_party_settings_form(\Drupal\Core\Field\WidgetInterface $plugin, \Drupal\Core\Field\FieldDefinitionInterface $field_definition, $form_mode, $form, \Drupal\Core\Form\FormStateInterface $form_state) {
+ $element = [];
+ // Add a 'my_setting' checkbox to the settings form for 'foo_widget' field
+ // widgets.
+ if ($plugin->getPluginId() == 'foo_widget') {
+ $element['my_setting'] = [
+ '#type' => 'checkbox',
+ '#title' => t('My setting'),
+ '#default_value' => $plugin->getThirdPartySetting('my_module', 'my_setting'),
+ ];
+ }
+ return $element;
+}
+
+/**
+ * Alters the field formatter settings summary.
+ *
+ * @param array $summary
+ * An array of summary messages.
+ * @param $context
+ * An associative array with the following elements:
+ * - formatter: The formatter object.
+ * - field_definition: The field definition.
+ * - view_mode: The view mode being configured.
+ *
+ * @see \Drupal\field_ui\DisplayOverView
+ */
+function hook_field_formatter_settings_summary_alter(&$summary, $context) {
+ // Append a message to the summary when an instance of foo_formatter has
+ // mysetting set to TRUE for the current view mode.
+ if ($context['formatter']->getPluginId() == 'foo_formatter') {
+ if ($context['formatter']->getThirdPartySetting('my_module', 'my_setting')) {
+ $summary[] = t('My setting enabled.');
+ }
+ }
+}
+
+/**
+ * Alters the field widget settings summary.
+ *
+ * @param array $summary
+ * An array of summary messages.
+ * @param array $context
+ * An associative array with the following elements:
+ * - widget: The widget object.
+ * - field_definition: The field definition.
+ * - form_mode: The form mode being configured.
+ *
+ * @see \Drupal\field_ui\FormDisplayOverView
+ */
+function hook_field_widget_settings_summary_alter(&$summary, $context) {
+ // Append a message to the summary when an instance of foo_widget has
+ // mysetting set to TRUE for the current view mode.
+ if ($context['widget']->getPluginId() == 'foo_widget') {
+ if ($context['widget']->getThirdPartySetting('my_module', 'my_setting')) {
+ $summary[] = t('My setting enabled.');
+ }
+ }
+}
+
+/**
+ * @} End of "addtogroup field_types".
+ */