Issue #3456598 by mingsong, geoffreyr, sirclickalot: Extend autocomplete field...

Issue #3456598 by mingsong, geoffreyr, sirclickalot: Extend autocomplete field length, allow more terms to be selected

config/schema/entity_reference_tree.schema.yml

@@ -26,4 +26,6 @@ field.widget.settings.entity_reference_tree:
     label:
       type: label
       label: 'Button label'
-
+    autocomplete_maxlength:
+      type: integer
+      label: 'Autocomplete field maximum length'

src/Plugin/Field/FieldWidget/EntityReferenceTreeWidget.php

@@ -2,10 +2,10 @@
 
 namespace Drupal\entity_reference_tree\Plugin\Field\FieldWidget;
 
-use Drupal\Core\Url;
-use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Field\FieldItemListInterface;
 use Drupal\Core\Field\Plugin\Field\FieldWidget\EntityReferenceAutocompleteWidget;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
 
 /**
  * A entity reference tree widget.
@@ -35,29 +35,30 @@ class EntityReferenceTreeWidget extends EntityReferenceAutocompleteWidget {
     if (empty($arr_target)) {
       $str_target = '*';
     }
-    else
-    {
+    else {
       $str_target = implode(',', $arr_target);
     }
 
-    //The id of the autocomplete text field.
-    //To ensure unqiueness when being used within Paragraph entities
-    //add the ids of any parent elements as a prefix to the the
-    //edit id.
+    // The id of the autocomplete text field.
+    // To ensure unqiueness when being used within Paragraph entities
+    // add the ids of any parent elements as a prefix to the the
+    // edit id.
     $parents = $element['#field_parents'];
     $id_prefix = '';
     if (!empty($parents)) {
-      //Empty check necessary because implode will return the
-      //separator when given an empty array.
+      // Empty check necessary because implode will return the
+      // separator when given an empty array.
       $id_prefix = str_replace('_', '-', implode('-', array_merge($parents))) . '-';
     }
 
-    //Including the delta in the id to follow the Entity Reference module's convention.
+    // Including the delta in the id
+    // to follow the Entity Reference module's convention.
     $edit_id = 'edit-' . $id_prefix . str_replace('_', '-', $items->getName()) . '-' . $delta . '-target-id';
 
     $arr_element['target_id']['#id'] = $edit_id;
     $arr_element['target_id']['#tags'] = TRUE;
     $arr_element['target_id']['#default_value'] = $items->referencedEntities();
+    $arr_element['target_id']['#maxlength'] = (int) ($this->getSetting('autocomplete_maxlength') ?? 1024);
 
     $label = $this->getSetting('label');
     if (!$label) {
@@ -114,14 +115,16 @@ class EntityReferenceTreeWidget extends EntityReferenceAutocompleteWidget {
    */
   public static function defaultSettings() {
     return [
-        // JsTree theme
-        'theme' => 'default',
+        // JsTree theme.
+      'theme' => 'default',
         // Using dot line.
-        'dots' => 0,
+      'dots' => 0,
         // Button label.
-        'label' => '',
+      'label' => '',
         // Dialog title.
-        'dialog_title' => '',
+      'dialog_title' => '',
+        // Maximum length of autocomplete.
+      'autocomplete_maxlength' => '1024',
     ] + parent::defaultSettings();
   }
 
@@ -132,28 +135,28 @@ class EntityReferenceTreeWidget extends EntityReferenceAutocompleteWidget {
     $element = [];
     // JsTRee theme.
     $element['theme'] = [
-        '#type' => 'radios',
-        '#title' => t('JsTree theme'),
-        '#default_value' => $this->getSetting('theme'),
-        '#required' => TRUE,
-        '#options' => array(
-            'default' => $this
-            ->t('Default'),
-            'default-dark' => $this
-            ->t('Default Dark'),
-        ),
+      '#type' => 'radios',
+      '#title' => t('JsTree theme'),
+      '#default_value' => $this->getSetting('theme'),
+      '#required' => TRUE,
+      '#options' => [
+        'default' => $this
+          ->t('Default'),
+        'default-dark' => $this
+          ->t('Default Dark'),
+      ],
     ];
     // Tree dot.
     $element['dots'] = [
-        '#type' => 'radios',
-        '#title' => t('Dot line'),
-        '#default_value' => $this->getSetting('dots'),
-        '#options' => array(
-            0 => $this
-            ->t('No'),
-            1 => $this
-            ->t('Yes'),
-        ),
+      '#type' => 'radios',
+      '#title' => t('Dot line'),
+      '#default_value' => $this->getSetting('dots'),
+      '#options' => [
+        0 => $this
+          ->t('No'),
+        1 => $this
+          ->t('Yes'),
+      ],
     ];
     // Button label.
     $element['label'] = [
@@ -168,6 +171,15 @@ class EntityReferenceTreeWidget extends EntityReferenceAutocompleteWidget {
       '#default_value' => $this->getSetting('dialog_title'),
     ];
 
+    $element['autocomplete_maxlength'] = [
+      '#type' => 'number',
+      '#title' => $this->t('Autocomplete field maximum length'),
+      '#description' => $this->t('Use this for fields which can accept a larger number of taxonomy terms.'),
+      '#default_value' => $this->getSetting('autocomplete_maxlength'),
+      '#min' => 1024,
+      '#step' => 1,
+    ];
+
     return $element;
   }
 
@@ -177,7 +189,7 @@ class EntityReferenceTreeWidget extends EntityReferenceAutocompleteWidget {
   public function settingsSummary() {
     $summary = [];
     // JsTree theme.
-    $summary[] = t('JsTree theme: @theme', array('@theme' => $this->getSetting('theme')));
+    $summary[] = t('JsTree theme: @theme', ['@theme' => $this->getSetting('theme')]);
     // Button label.
     if ($label = $this->getSetting('label')) {
       $summary[] = t('Button label: @label', ['@label' => $label]);
@@ -186,7 +198,8 @@ class EntityReferenceTreeWidget extends EntityReferenceAutocompleteWidget {
     if ($label = $this->getSetting('dialog_title')) {
       $summary[] = t('Dialog title: @title', ['@title' => $label]);
     }
-    
+
     return $summary;
   }
+
 }