Updated to Drupal 8.5. Core Media not yet in use.

[yaffs-website] / web / core / lib / Drupal / Core / Messenger / Messenger.php

diff --git a/web/core/lib/Drupal/Core/Messenger/Messenger.php b/web/core/lib/Drupal/Core/Messenger/Messenger.php
new file mode 100644 (file)
index 0000000..c094943
--- /dev/null
+++ b/web/core/lib/Drupal/Core/Messenger/Messenger.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace Drupal\Core\Messenger;
+
+use Drupal\Component\Render\MarkupInterface;
+use Drupal\Core\PageCache\ResponsePolicy\KillSwitch;
+use Drupal\Core\Render\Markup;
+use Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface;
+
+/**
+ * The messenger service.
+ */
+class Messenger implements MessengerInterface {
+
+  /**
+   * The flash bag.
+   *
+   * @var \Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface
+   */
+  protected $flashBag;
+
+  /**
+   * The kill switch.
+   *
+   * @var \Drupal\Core\PageCache\ResponsePolicy\KillSwitch
+   */
+  protected $killSwitch;
+
+  /**
+   * Messenger constructor.
+   *
+   * @param \Symfony\Component\HttpFoundation\Session\Flash\FlashBagInterface $flash_bag
+   *   The flash bag.
+   * @param \Drupal\Core\PageCache\ResponsePolicy\KillSwitch $killSwitch
+   *   The kill switch.
+   */
+  public function __construct(FlashBagInterface $flash_bag, KillSwitch $killSwitch) {
+    $this->flashBag = $flash_bag;
+    $this->killSwitch = $killSwitch;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function addError($message, $repeat = FALSE) {
+    return $this->addMessage($message, static::TYPE_ERROR, $repeat);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function addMessage($message, $type = self::TYPE_STATUS, $repeat = FALSE) {
+    if (!($message instanceof Markup) && $message instanceof MarkupInterface) {
+      $message = Markup::create((string) $message);
+    }
+
+    // Do not use strict type checking so that equivalent string and
+    // MarkupInterface objects are detected.
+    if ($repeat || !in_array($message, $this->flashBag->peek($type))) {
+      $this->flashBag->add($type, $message);
+    }
+
+    // Mark this page as being uncacheable.
+    $this->killSwitch->trigger();
+
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function addStatus($message, $repeat = FALSE) {
+    return $this->addMessage($message, static::TYPE_STATUS, $repeat);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function addWarning($message, $repeat = FALSE) {
+    return $this->addMessage($message, static::TYPE_WARNING, $repeat);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function all() {
+    return $this->flashBag->peekAll();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function deleteAll() {
+    return $this->flashBag->clear();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function deleteByType($type) {
+    // Flash bag gets and clears flash messages from the stack.
+    return $this->flashBag->get($type);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function messagesByType($type) {
+    return $this->flashBag->peek($type);
+  }
+
+}