Issue #3185302 by D4K0, vbouchet, Chris Burge: Increase the maxlength of form...

Issue #3185302 by D4K0, vbouchet, Chris Burge: Increase the maxlength of form input fields for custom class(es) and inline styles

src/Form/ManageComponentAttributesForm.php

@@ -152,16 +152,19 @@ class ManageComponentAttributesForm extends FormBase {
       '#type' => 'textfield',
       '#title' => 'Class(es)',
       '#description' => $this->t('Classes to be applied. Multiple classes should be separated by a space.'),
+      '#maxlength' => 512,
     ];
     $form_partial_style = [
       '#type' => 'textfield',
       '#title' => 'Style',
       '#description' => $this->t('Inline CSS styles. <em>In general, inline CSS styles should be avoided.</em>'),
+      '#maxlength' => 512,
     ];
     $form_partial_data = [
       '#type' => 'textarea',
       '#title' => 'Data-* attributes',
       '#description' => $this->t('Custom attributes, which are available to both CSS and JS.<br><br>Each attribute should be entered on its own line with a pipe (|) separating its name and its optional value:<br>data-test|example-value<br>data-attribute-with-no-value'),
+      '#maxlength' => 512,
     ];
 
     if (!$empty_categories['allowed_block_attributes']) {