Further modules included.

[yaffs-website] / web / modules / contrib / libraries / src / Plugin / libraries / Locator / ChainLocator.php

diff --git a/web/modules/contrib/libraries/src/Plugin/libraries/Locator/ChainLocator.php b/web/modules/contrib/libraries/src/Plugin/libraries/Locator/ChainLocator.php
new file mode 100644 (file)
index 0000000..4e0acff
--- /dev/null
+++ b/web/modules/contrib/libraries/src/Plugin/libraries/Locator/ChainLocator.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Drupal\libraries\Plugin\libraries\Locator;
+
+use Drupal\libraries\ExternalLibrary\Local\LocalLibraryInterface;
+use Drupal\libraries\ExternalLibrary\Local\LocatorInterface;
+
+/**
+ * Provides a locator utilizing a chain of other individual locators.
+ *
+ * @Locator("chain")
+ *
+ * @see \Drupal\libraries\ExternalLibrary\Local\LocatorInterface
+ */
+class ChainLocator implements LocatorInterface {
+
+  /**
+   * The locators to check.
+   *
+   * @var \Drupal\libraries\ExternalLibrary\Local\LocatorInterface[]
+   */
+  protected $locators = [];
+
+  /**
+   * Add a locator to the chain.
+   *
+   * @param \Drupal\libraries\ExternalLibrary\Local\LocatorInterface $locator
+   *   A locator to add to the chain.
+   */
+  public function addLocator(LocatorInterface $locator) {
+    $this->locators[] = $locator;
+    return $this;
+  }
+
+  /**
+   * Locates a library.
+   *
+   * @param \Drupal\libraries\ExternalLibrary\Local\LocalLibraryInterface $library
+   *   The library to locate.
+   *
+   * @see \Drupal\libraries\ExternalLibrary\Local\LocatorInterface::locate()
+   */
+  public function locate(LocalLibraryInterface $library) {
+    foreach ($this->locators as $locator) {
+      $locator->locate($library);
+      if ($library->isInstalled()) {
+        return;
+      }
+    }
+    $library->setUninstalled();
+  }
+
+}