Applied patch for Issue #3077333 by davitako: Add filter to currency block settings

Author: git

js/nbg-currency-settings.js

@@ -0,0 +1,21 @@
+/**
+ * @file
+ * NBG Currency block behaviors.
+ */
+(function ($, Drupal) {
+  'use strict';
+
+  Drupal.behaviors.ngbCurrencyFilterByText = {
+    attach: function (context, settings) {
+      // Currency filter.
+      $('input.currency-filter-search', context).once().on('input', function (e) {
+        var value = $(this).val().toLowerCase();
+        $(".nbg-currency")
+          .closest('.form-type-checkbox')
+          .filter(function () {
+          $(this).toggle($(this).text().toLowerCase().indexOf(value) > -1)
+        });
+      })
+    }
+  };
+})(jQuery, Drupal);

nbg_currency.libraries.yml

@@ -2,3 +2,10 @@ nbg-currency:
   css:
     theme:
       css/nbg-currency.css: {}
+
+nbg-currency.settings:
+  js:
+    js/nbg-currency-settings.js: {}
+  dependencies:
+    - core/jquery
+    - core/jquery.once

src/Plugin/Block/NBGCurrencyBlock.php

@@ -197,15 +197,41 @@ public function blockForm($form, FormStateInterface $form_state) {
       }
     }
 
+    // Container for filtering currencies.
+    $form['nbg_currency'] = [
+      '#type' => 'container',
+      '#attributes' => [
+        'class' => ['currency-filter'],
+      ],
+    ];
+
+    // Currency filter.
+    $form['nbg_currency']['nbg_currency_filter'] = [
+      '#type' => 'search',
+      '#title' => $this->t('Filter currency'),
+      '#size' => 30,
+      '#placeholder' => $this->t('Filter by name'),
+      '#description' => $this->t('Enter part of a currency'),
+      '#attributes' => [
+        'class' => ['currency-filter-search'],
+      ],
+    ];
+
     // Create checkboxes group for Currency Codes.
     $form['nbg_currency_currencies'] = [
       '#type' => 'checkboxes',
       '#options' => $currencies,
       '#title' => $this->t('Currency Codes'),
       '#description' => $this->t('Select Currency Codes for displaying in block.'),
       '#default_value' => $config['nbg_currency_currencies'] ?? [],
+      '#attributes' => [
+        'class' => ['nbg-currency']
+      ]
     ];
 
+    // Attach block settings library.
+    $form['#attached']['library'][] = 'nbg_currency/nbg-currency.settings';
+
     return $form;
   }