JavascriptStatesForm.php in Drupal 8
File
core/modules/system/tests/modules/form_test/src/Form/JavascriptStatesForm.php
View source
<?php
namespace Drupal\form_test\Form;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
class JavascriptStatesForm extends FormBase {
public function getFormId() {
return 'javascript_states_form';
}
public function buildForm(array $form, FormStateInterface $form_state) {
$form['select'] = [
'#type' => 'select',
'#title' => 'select 1',
'#options' => [
0 => 0,
1 => 1,
2 => 2,
],
];
$form['number'] = [
'#type' => 'number',
'#title' => 'enter 1',
];
$form['textfield'] = [
'#type' => 'textfield',
'#title' => 'textfield',
'#states' => [
'visible' => [
[
':input[name="select"]' => [
'value' => '1',
],
],
'or',
[
':input[name="number"]' => [
'value' => '1',
],
],
],
],
];
return $form;
}
public function submitForm(array &$form, FormStateInterface $form_state) {
}
}