drupal_module__splash/lib/OSInet/Splash/SettingsForm.php

<?php
/**
 * @file
 * SettingsForm.php
 *
 * @author: Frédéric G. MARAND <fgm@osinet.fr>
 *
 * @copyright (c) 2015 Ouest Systèmes Informatiques (OSInet).
 *
 * @license General Public License version 2 or later
 */

namespace OSInet\Splash;


class SettingsForm {
  /**
   * @var array
   */
  public $form;

  /**
   * @var array
   */
  public $state;

  public function __construct(array $form, array &$form_state) {
    $this->form = $form;
    $this->state = $form_state;
  }

  public function build() {
    $form = $this->form;
    $form['splash-source'] = [
      '#title' => t('Source selector'),
      '#description' => t('The jQuery selector for the source container'),
      '#type' => 'textfield',
      '#default_value' => variable_get('splash-source', 'body'),
    ];

    $form['splash-destination'] = [
      '#title' => t('Destination selector'),
      '#description' => t('The jQuery selector for the destination container. If empty, the splash will just disappear after the timeout.'),
      '#type' => 'textfield',
      '#default_value' => variable_get('splash-destination', ''),
    ];

    $form['splash-timeout'] = [
      '#title' => t('Timeout'),
      '#description' => t('The number of milliseconds during which to display the splash.'),
      '#type' => 'textfield',
      '#size' => 5,
      '#default_value' => variable_get('splash-timeout', 3),
    ];

    $form['splash-body'] = [
      '#title' => t('Splash content'),
      '#description' => t('The content inserted as the splash. This is raw text, so be cautious. It will typically be something like &lt;img src="somepath.png" /&gt;'),
      '#type' => 'textarea',
      '#rows' => 5,
      '#cols' => 80,
      '#default_value' => variable_get('splash-body', ''),
    ];

    $form = system_settings_form($form);
    return $form;
  }
}