Issue #3230415: Call to deprecated function libraries_detect():

src/Plugin/CKEditorPlugin/Lite.php

@@ -25,9 +25,7 @@ class Lite extends CKEditorPluginBase {
    * {@inheritdoc}
    */
   public function getFile() {
-    $library = libraries_detect('lite');
-
-    return $library['library path'] . '/plugin.js';
+    return $this->getLibraryPath() . '/plugin.js';
   }
 
   /**
@@ -48,34 +46,74 @@ class Lite extends CKEditorPluginBase {
    * {@inheritdoc}
    */
   public function getButtons() {
-    $library = libraries_detect('lite');
+    $libraryPath = $this->getLibraryPath();
 
     return array(
       'lite-acceptall' => array(
         'label' => t('Accept all changes'),
-        'image' => $library['library path'] . '/icons/lite-acceptall.png',
+        'image' => $libraryPath . '/icons/lite-acceptall.png',
       ),
       'lite-rejectall' => array(
         'label' => t('Reject all changes'),
-        'image' => $library['library path'] . '/icons/lite-rejectall.png',
+        'image' => $libraryPath . '/icons/lite-rejectall.png',
       ),
       'lite-acceptone' => array(
         'label' => t('Accept change'),
-        'image' => $library['library path'] . '/icons/lite-acceptone.png',
+        'image' => $libraryPath . '/icons/lite-acceptone.png',
       ),
       'lite-rejectone' => array(
         'label' => t('Reject change'),
-        'image' => $library['library path'] . '/icons/lite-rejectone.png',
+        'image' => $libraryPath . '/icons/lite-rejectone.png',
       ),
       'lite-toggleshow' => array(
         'label' => t('Show/hide tracked changes'),
-        'image' => $library['library path'] . '/icons/lite-toggleshow.png',
+        'image' => $libraryPath . '/icons/lite-toggleshow.png',
       ),
       'lite-toggletracking' => array(
         'label' => t('Start/stop tracking changes'),
-        'image' => $library['library path'] . '/icons/lite-toggletracking.png',
+        'image' => $libraryPath . '/icons/lite-toggletracking.png',
       ),
     );
   }
 
+  /**
+   * Get the CKEditor Lite library path.
+   */
+  protected function getLibraryPath() {
+    // Following the logic in Drupal 8.9.x and Drupal 9.x
+    // ----------------------------------------------------------------------
+    // Issue #3096648: Add support for third party libraries in site specific
+    // and install profile specific libraries folders
+    // https://www.drupal.org/project/drupal/issues/3096648
+    //
+    // https://git.drupalcode.org/project/drupal/commit/1edf15f
+    // -----------------------------------------------------------------------
+    // Search sites/<domain>/*.
+    $directories[] = \Drupal::service('site.path') . "/libraries/";
+
+    // Always search the root 'libraries' directory.
+    $directories[] = 'libraries/';
+
+    // Installation profiles can place libraries into a 'libraries' directory.
+    if ($installProfile = \Drupal::installProfile()) {
+      $profile_path = drupal_get_path('profile', $installProfile);
+      $directories[] = "$profile_path/libraries/";
+    }
+
+    foreach ($directories as $dir) {
+      if (file_exists(DRUPAL_ROOT . '/' . $dir . 'lite/plugin.js')) {
+        return $dir . 'lite';
+      }
+    }
+
+    return 'libraries/lite';
+  }
+
+  /**
+   * Get the CKEditor Lite library URL.
+   */
+  protected function getLibraryUrl() {
+    $originUrl = \Drupal::request()->getSchemeAndHttpHost() . \Drupal::request()->getBaseUrl();
+    return  $originUrl . '/' . $this->getLibraryPath();
+  }
 }