diff core/lib/Drupal/Core/Ajax/AnnounceCommand.php @ 5:12f9dff5fda9 tip

Update to Drupal core 8.7.1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/Ajax/AnnounceCommand.php	Thu May 09 15:34:47 2019 +0100
@@ -0,0 +1,81 @@
+<?php
+
+namespace Drupal\Core\Ajax;
+
+use Drupal\Core\Asset\AttachedAssets;
+
+/**
+ * AJAX command for a JavaScript Drupal.announce() call.
+ *
+ * @ingroup ajax
+ */
+class AnnounceCommand implements CommandInterface, CommandWithAttachedAssetsInterface {
+
+  /**
+   * The assertive priority attribute value.
+   *
+   * @var string
+   */
+  const PRIORITY_ASSERTIVE = 'assertive';
+
+  /**
+   * The polite priority attribute value.
+   *
+   * @var string
+   */
+  const PRIORITY_POLITE = 'polite';
+
+  /**
+   * The text to be announced.
+   *
+   * @var string
+   */
+  protected $text;
+
+  /**
+   * The priority that will be used for the announcement.
+   *
+   * @var string
+   */
+  protected $priority;
+
+  /**
+   * Constructs an AnnounceCommand object.
+   *
+   * @param string $text
+   *   The text to be announced.
+   * @param string|null $priority
+   *   (optional) The priority that will be used for the announcement. Defaults
+   *   to NULL which will not set a 'priority' in the response sent to the
+   *   client and therefore the JavaScript Drupal.announce() default of 'polite'
+   *   will be used for the message.
+   */
+  public function __construct($text, $priority = NULL) {
+    $this->text = $text;
+    $this->priority = $priority;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function render() {
+    $render = [
+      'command' => 'announce',
+      'text' => $this->text,
+    ];
+    if ($this->priority !== NULL) {
+      $render['priority'] = $this->priority;
+    }
+    return $render;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getAttachedAssets() {
+    $assets = new AttachedAssets();
+    $assets->setLibraries(['core/drupal.announce']);
+    return $assets;
+  }
+
+}