function block_styles_form_block_form_alter in Block Styles 1.x

Same name and namespace in other branches

1. 8 block_styles.module \block_styles_form_block_form_alter()
2. 2.x block_styles.module \block_styles_form_block_form_alter()

Implements hook_form_alter() adding administration for block layouts.

File

./block_styles.module, line 39

Code

function block_styles_form_block_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
  $entity = $form_state
    ->getFormObject()
    ->getEntity();
  if (is_null($entity
    ->id())) {
    return;
  }
  $style = _block_styles_get_style($entity
    ->id());
  $styles_manager = \Drupal\styles_api\Style::stylePluginManager();
  $styles = [];
  $plugin_definitions = $styles_manager
    ->getDefinitions();
  foreach ($plugin_definitions as $plugin_id => $plugin_definition) {
    if ($plugin_definition['type'] == 'block') {
      $styles[$plugin_id] = $plugin_definition['label'];
    }
  }
  $disabled = TRUE;
  $type = 'hidden';
  $attributes = [
    'style' => [
      'display' => 'none',
    ],
  ];
  $results = $form_state
    ->getValues();
  if (isset($results['block_styles']['theme'])) {
    if ($plugin_definitions[$results['block_styles']['theme']]['extras']['label']) {
      $disabled = FALSE;
      $type = 'textfield';
    }
  }
  else {
    if ($style && $plugin_definitions[$style['theme']]['extras']['label']) {
      $disabled = FALSE;
      $type = 'textfield';
    }
  }

  // Block styles
  $form['block_styles'] = [
    '#type' => 'fieldset',
    '#title' => t('Block Styles Template'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  ];
  $form['block_styles']['theme'] = [
    '#type' => 'select',
    '#title' => t('Select block style'),
    '#default_value' => $style['theme'],
    '#empty_option' => t('None'),
    '#options' => $styles,
    '#description' => t('The selected layout template will be applied to block wrapper, replacing block.html.twig'),
    '#ajax' => [
      // When 'event' occurs, Drupal will perform an ajax request in the
      // background. Usually the default value is sufficient (eg. change for
      // select elements), but valid values include any jQuery event,
      // most notably 'mousedown', 'blur', and 'submit'.
      // 'event' => 'change',
      'callback' => '_block_styles_theme_callback',
      'wrapper' => 'text-replace',
    ],
  ];
  $form['block_styles']['text'] = [
    '#type' => $type,
    '#title' => t('Text for button label'),
    '#default_value' => $style['text'],
    '#description' => t('Text to use on the button that show the block content.'),
    '#size' => 60,
    '#maxlength' => 64,
    '#prefix' => '<div id="text-replace">',
    '#suffix' => '</div>',
    '#disabled' => $disabled,
  ];
  $form['block_styles']['classes'] = [
    '#type' => 'textfield',
    '#title' => t('Add classes to block wrapper'),
    '#default_value' => $style['classes'],
    '#description' => t('Add classes for block wrapper, separated by spaces.'),
    '#size' => 60,
    '#maxlength' => 128,
  ];
  $form['actions']['submit']['#submit'][] = '_block_styles_form_submit';
}