Further modules included.

[yaffs-website] / web / modules / contrib / libraries / src / ExternalLibrary / Definition / ChainDefinitionDiscovery.php

diff --git a/web/modules/contrib/libraries/src/ExternalLibrary/Definition/ChainDefinitionDiscovery.php b/web/modules/contrib/libraries/src/ExternalLibrary/Definition/ChainDefinitionDiscovery.php
new file mode 100644 (file)
index 0000000..f588018
--- /dev/null
+++ b/web/modules/contrib/libraries/src/ExternalLibrary/Definition/ChainDefinitionDiscovery.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Drupal\libraries\ExternalLibrary\Definition;
+
+use Drupal\libraries\ExternalLibrary\Exception\LibraryDefinitionNotFoundException;
+
+/**
+ * Provides a definition discovery that checks a list of other discoveries.
+ *
+ * The discoveries are checked sequentially. If the definition was not present
+ * in some discoveries but is found in a later discovery the definition will be
+ * written to the earlier discoveries if they implement
+ * WritableDefinitionDiscoveryInterface.
+ *
+ * @see \Drupal\libraries\ExternalLibrary\Definition\WritableDefinitionDiscoveryInterface
+ */
+class ChainDefinitionDiscovery implements DefinitionDiscoveryInterface {
+
+  /**
+   * The list of definition discoveries that will be checked.
+   *
+   * @var \Drupal\libraries\ExternalLibrary\Definition\DefinitionDiscoveryInterface[]
+   */
+  protected $discoveries = [];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function hasDefinition($id) {
+    foreach ($this->discoveries as $discovery) {
+      if ($discovery->hasDefinition($id)) {
+        return TRUE;
+      }
+    }
+
+    return FALSE;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDefinition($id) {
+    /** @var \Drupal\libraries\ExternalLibrary\Definition\WritableDefinitionDiscoveryInterface[] $discoveries_to_write */
+    $discoveries_to_write = [];
+    foreach ($this->discoveries as $discovery) {
+      if ($discovery->hasDefinition($id)) {
+        $definition = $discovery->getDefinition($id);
+        break;
+      }
+      elseif ($discovery instanceof WritableDefinitionDiscoveryInterface) {
+        $discoveries_to_write[] = $discovery;
+      }
+    }
+
+    if (!isset($definition)) {
+      throw new LibraryDefinitionNotFoundException($id);
+    }
+
+    foreach ($discoveries_to_write as $discovery_to_write) {
+      $discovery_to_write->writeDefinition($id, $definition);
+    }
+
+    return $definition;
+  }
+
+  /**
+   * Adds a definition discovery to the list to check.
+   *
+   * @param \Drupal\libraries\ExternalLibrary\Definition\DefinitionDiscoveryInterface $discovery
+   *   The definition discovery to add.
+   *
+   * @return $this
+   */
+  public function addDiscovery(DefinitionDiscoveryInterface $discovery) {
+    $this->discoveries[] = $discovery;
+    return $this;
+  }
+
+}