Disable page title from a paragraph setting

feature_commons.module

<?php

/**
 * Helper to hide the page title (see THEME_preprocess_page).
 */
function _feature_commons_hide_title($value = NULL) {
  $static = &drupal_static(__FUNCTION__, FALSE);
  if (NULL !== $value) {
    $static = (bool) $value;
  }
  return $static;
}

feature_pages.module

<?php


/**
 * Implements hook_preprocess_entity().
 */
function feature_pages_preprocess_entity(&$variables) {
  if ($variables['entity_type'] != 'paragraphs_item' || $variables['view_mode'] == 'paragraphs_editor_preview') {
    return;
  }

  $entity = $variables['paragraphs_item'];
  switch ($entity->bundle) {
    // ...
    
    // For "Titre" bundle.
    case 'title':
      // Wrap title into <hX>.
      $depth = $entity->field_title_depth[LANGUAGE_NONE][0]['value'];
      $variables['content']['field_title'][0]['#prefix'] = '<h' . $depth . '>';
      $variables['content']['field_title'][0]['#suffix'] = '</h' . $depth . '>';
      if ($depth == 1) {
        _feature_commons_hide_title(TRUE);
      }
      break;
    
    // ...
  }
}

template.php

<?php

/**
 * Override or insert variables into the page templates.
 *
 * @param $variables
 *   An array of variables to pass to the theme template.
 * @param $hook
 *   The name of the template being rendered ("page" in this case.)
 */
function THEME_preprocess_page(&$variables, $hook) {
  if (module_exists('feature_commons') && _feature_commons_hide_title()) {
    $variables['title'] = '';
  }
}