--- /dev/null
+<?php
+
+namespace Drupal\{{ machine_name }}\Plugin\Condition;
+
+use Drupal\Component\Datetime\TimeInterface;
+use Drupal\Core\Condition\ConditionPluginBase;
+use Drupal\Core\Datetime\DateFormatterInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+/**
+ * Provides a '{{ plugin_label }}' condition.
+ *
+ * @Condition(
+ * id = "{{ plugin_id }}",
+ * label = @Translation("{{ plugin_label }}"),
+ * context = {
+ * "node" = @ContextDefinition(
+ * "entity:node",
+ * label = @Translation("Node")
+ * )
+ * }
+ * )
+ */
+class {{ class }} extends ConditionPluginBase implements ContainerFactoryPluginInterface {
+
+ /**
+ * The date formatter.
+ *
+ * @var \Drupal\Core\Datetime\DateFormatterInterface
+ */
+ protected $dateFormatter;
+
+ /**
+ * The time service.
+ *
+ * @var \Drupal\Component\Datetime\TimeInterface
+ */
+ protected $time;
+
+ /**
+ * Creates a new {{ class }} instance.
+ *
+ * @param array $configuration
+ * The plugin configuration, i.e. an array with configuration values keyed
+ * by configuration option name. The special key 'context' may be used to
+ * initialize the defined contexts by setting it to an array of context
+ * values keyed by context names.
+ * @param string $plugin_id
+ * The plugin_id for the plugin instance.
+ * @param mixed $plugin_definition
+ * The plugin implementation definition.
+ * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
+ * The date formatter.
+ * @param \Drupal\Component\Datetime\TimeInterface $time
+ * The time service.
+ */
+ public function __construct(array $configuration, $plugin_id, $plugin_definition, DateFormatterInterface $date_formatter, TimeInterface $time) {
+ parent::__construct($configuration, $plugin_id, $plugin_definition);
+ $this->dateFormatter = $date_formatter;
+ $this->time = $time;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+ return new static(
+ $configuration,
+ $plugin_id,
+ $plugin_definition,
+ $container->get('date.formatter'),
+ $container->get('datetime.time')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function defaultConfiguration() {
+ return ['age' => NULL] + parent::defaultConfiguration();
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
+
+ $form['age'] = [
+ '#title' => $this->t('Node age, sec'),
+ '#type' => 'number',
+ '#min' => 0,
+ '#default_value' => $this->configuration['age'],
+ ];
+
+ return parent::buildConfigurationForm($form, $form_state);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
+ $this->configuration['age'] = $form_state->getValue('age');
+ parent::submitConfigurationForm($form, $form_state);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function summary() {
+ return $this->t(
+ 'Node age: @age',
+ ['@age' => $this->dateFormatter->formatInterval($this->configuration['age'])]
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function evaluate() {
+ if (!$this->configuration['age'] && !$this->isNegated()) {
+ return TRUE;
+ }
+ $age = $this->time->getRequestTime() - $this->getContextValue('node')->getCreatedTime();
+ return $age < $this->configuration['age'];
+ }
+
+}