Issue #3035732 by Lendude, nod_, Vidushi Mehta, Kristen Pol, jungle, larowlan:...

Issue #3035732 by Lendude, nod_, Vidushi Mehta, Kristen Pol, jungle, larowlan: Views UI tags do not use autocomplete suggestions

(cherry picked from commit 8fac18c8)

core/modules/views_ui/src/Controller/ViewsUIController.php

@@ -2,6 +2,7 @@
 
 namespace Drupal\views_ui\Controller;
 
+use Drupal\Component\Utility\Tags;
 use Drupal\Core\Controller\ControllerBase;
 use Drupal\Core\Link;
 use Drupal\Core\Url;
@@ -188,13 +189,15 @@ public function autocompleteTag(Request $request) {
     // Keep track of previously processed tags so they can be skipped.
     $tags = [];
     foreach ($views as $view) {
-      $tag = $view->get('tag');
-      if ($tag && !in_array($tag, $tags)) {
-        $tags[] = $tag;
-        if (strpos($tag, $string) === 0) {
-          $matches[] = ['value' => $tag, 'label' => Html::escape($tag)];
-          if (count($matches) >= 10) {
-            break;
+      $view_tag = $view->get('tag');
+      foreach (Tags::explode($view_tag) as $tag) {
+        if ($tag && !in_array($tag, $tags, TRUE)) {
+          $tags[] = $tag;
+          if (mb_stripos($tag, $string) !== FALSE) {
+            $matches[] = ['value' => $tag, 'label' => Html::escape($tag)];
+            if (count($matches) >= 10) {
+              break 2;
+            }
           }
         }
       }

core/modules/views_ui/tests/src/Kernel/TagTest.php

@@ -22,7 +22,7 @@ class TagTest extends ViewsKernelTestBase {
   protected static $modules = ['views', 'views_ui', 'user'];
 
   /**
-   * Tests the views_ui_autocomplete_tag function.
+   * Tests the ViewsUIController::autocompleteTag() function.
    */
   public function testViewsUiAutocompleteTag() {
     \Drupal::moduleHandler()->loadInclude('views_ui', 'inc', 'admin');
@@ -68,4 +68,41 @@ public function testViewsUiAutocompleteTag() {
     $this->assertCount(0, $matches, "Make sure an invalid tag doesn't return anything.");
   }
 
+  /**
+   * Tests that comma delimited tags are treated as individual tags.
+   *
+   * @dataProvider providerViewsUiAutocompleteIndividualTags
+   */
+  public function testViewsUiAutocompleteIndividualTags($expected_tag, $search_string) {
+    $controller = ViewsUIController::create($this->container);
+    $request = $this->container->get('request_stack')->getCurrentRequest();
+    $tag = 'comma, 你好, Foo bar';
+    View::create(['tag' => $tag, 'id' => $this->randomMachineName()])->save();
+    $request->query->set('q', $search_string);
+    $result = $controller->autocompleteTag($request);
+    $matches = (array) json_decode($result->getContent());
+    $this->assertCount(1, $matches);
+    $this->assertSame($expected_tag, $matches[0]->value);
+  }
+
+  /**
+   * Data provider for testViewsUiAutocompleteIndividualTags().
+   *
+   * @return array[]
+   *   The data set.
+   */
+  public function providerViewsUiAutocompleteIndividualTags() {
+    return [
+      'tag' => ['comma', 'comma'],
+      'case insensitive tag' => ['comma', 'COMMA'],
+      'Hello in Chinese (partial 1)' => ['你好', '你'],
+      'Hello in Chinese (partial 2)' => ['你好', '好'],
+      'Hello in Chinese' => ['你好', '你好'],
+      'Starts with partial and case-sensitive' => ['Foo bar', 'Foo'],
+      'Starts with partial and case-insensitive' => ['Foo bar', 'fOO'],
+      'Ends with partial and case-sensitive' => ['Foo bar', 'bar'],
+      'Ends with partial and case-insensitive' => ['Foo bar', 'BAR'],
+    ];
+  }
+
 }