Version 1

[yaffs-website] / web / core / modules / field / tests / modules / field_test / src / Plugin / Field / FieldWidget / TestFieldWidget.php

diff --git a/web/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldWidget/TestFieldWidget.php b/web/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldWidget/TestFieldWidget.php
new file mode 100644 (file)
index 0000000..9dd3387
--- /dev/null
+++ b/web/core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldWidget/TestFieldWidget.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace Drupal\field_test\Plugin\Field\FieldWidget;
+
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\WidgetBase;
+use Drupal\Core\Form\FormStateInterface;
+use Symfony\Component\Validator\ConstraintViolationInterface;
+
+/**
+ * Plugin implementation of the 'test_field_widget' widget.
+ *
+ * @FieldWidget(
+ *   id = "test_field_widget",
+ *   label = @Translation("Test widget"),
+ *   field_types = {
+ *     "test_field",
+ *     "hidden_test_field",
+ *     "test_field_with_preconfigured_options"
+ *   },
+ *   weight = -10
+ * )
+ */
+class TestFieldWidget extends WidgetBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function defaultSettings() {
+    return [
+      'test_widget_setting' => 'dummy test string',
+      'role' => 'anonymous',
+      'role2' => 'anonymous',
+    ] + parent::defaultSettings();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsForm(array $form, FormStateInterface $form_state) {
+    $element['test_widget_setting'] = [
+      '#type' => 'textfield',
+      '#title' => t('Field test field widget setting'),
+      '#description' => t('A dummy form element to simulate field widget setting.'),
+      '#default_value' => $this->getSetting('test_widget_setting'),
+      '#required' => FALSE,
+    ];
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsSummary() {
+    $summary = [];
+    $summary[] = t('@setting: @value', ['@setting' => 'test_widget_setting', '@value' => $this->getSetting('test_widget_setting')]);
+    return $summary;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
+    $element += [
+      '#type' => 'textfield',
+      '#default_value' => isset($items[$delta]->value) ? $items[$delta]->value : '',
+    ];
+    return ['value' => $element];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function errorElement(array $element, ConstraintViolationInterface $violation, array $form, FormStateInterface $form_state) {
+    return $element['value'];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function calculateDependencies() {
+    $dependencies = parent::calculateDependencies();
+
+    foreach (['role', 'role2'] as $setting) {
+      if (!empty($role_id = $this->getSetting($setting))) {
+        // Create a dependency on the role config entity referenced in settings.
+        $dependencies['config'][] = "user.role.$role_id";
+      }
+    }
+
+    return $dependencies;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function onDependencyRemoval(array $dependencies) {
+    $changed = parent::onDependencyRemoval($dependencies);
+
+    // Only the setting 'role' is resolved here. When the dependency related to
+    // this setting is removed, is expected that the widget component will be
+    // update accordingly in the display entity. The 'role2' setting is
+    // deliberately left out from being updated. When the dependency
+    // corresponding to this setting is removed, is expected that the widget
+    // component will be disabled in the display entity.
+    if (!empty($role_id = $this->getSetting('role'))) {
+      if (!empty($dependencies['config']["user.role.$role_id"])) {
+        $this->setSetting('role', 'anonymous');
+        $changed = TRUE;
+      }
+    }
+
+    return $changed;
+  }
+
+}