D9 non-libraries support for colordialog

colordialog-d9-support-3135491-18.patch

diff --git a/colordialog.info.yml b/colordialog.info.yml
index 090bf73..ccac3a3 100644
--- a/colordialog.info.yml
+++ b/colordialog.info.yml
@@ -2,7 +2,7 @@ name: CKEditor Color Dialog
 type: module
 description: "Adds in the Color Dialog plugin for CKEditor."
 package: CKEditor
-core: 8.x
+core_version_requirement: ^8 || ^9
 
 dependencies:
   - drupal:ckeditor
diff --git a/colordialog.install b/colordialog.install
index e228f7c..c4270b9 100644
--- a/colordialog.install
+++ b/colordialog.install
@@ -11,11 +11,12 @@
 function colordialog_requirements($phase) {
   $requirements = [];
 
-  $path = '/libraries/colordialog/plugin.js';
-  if (\Drupal::moduleHandler()->moduleExists('libraries')) {
-    $path = libraries_get_path('colordialog') . '/plugin.js';
+  if (\Drupal::hasService('library.libraries_directory_file_finder')) {
+    $path = \Drupal::service('library.libraries_directory_file_finder')->find('colordialog/plugin.js');
+  }
+  else {
+    $path = DRUPAL_ROOT . '/libraries/colordialog/plugin.js';
   }
-  $path = DRUPAL_ROOT . '/' . $path;
 
   if (!file_exists($path)) {
     $requirements['colordialog'] = [
diff --git a/src/Plugin/CKEditorPlugin/ColorDialog.php b/src/Plugin/CKEditorPlugin/ColorDialog.php
index 04e14c0..8f867b7 100644
--- a/src/Plugin/CKEditorPlugin/ColorDialog.php
+++ b/src/Plugin/CKEditorPlugin/ColorDialog.php
@@ -20,9 +20,11 @@ class ColorDialog extends CKEditorPluginBase implements CKEditorPluginContextual
    * {@inheritdoc}
    */
   public function getFile() {
-    $path = 'libraries/colordialog/plugin.js';
-    if (\Drupal::moduleHandler()->moduleExists('libraries')) {
-      $path = libraries_get_path('colordialog', FALSE) . '/plugin.js';
+    if (\Drupal::hasService('library.libraries_directory_file_finder')) {
+      $path = \Drupal::service('library.libraries_directory_file_finder')->find('colordialog/plugin.js');
+    }
+    else {
+      $path = DRUPAL_ROOT . '/libraries/colordialog/plugin.js';
     }
     return $path;
   }