drupal_module__splash/lib/OSInet/Splash/SplashBlock.php

<?php
/**
 * @file
 * SplashBlock.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 SplashBlock {
  const MODULE = 'splash';
  const DELTA = 'splash';

  protected static $defaults = [
    'source' => '#block-system-main',
    'destination' => '#block-splash-splash',
    'timeout' => 3,
    'body' => '',
  ];


  public static function info() {
    $ret = [
      'info' => t('Splash image'),
      'cache' => DRUPAL_CACHE_GLOBAL,
    ];

    return $ret;
  }

  public static function variableGet($name) {
    return variable_get(static::MODULE . "-$name", static::$defaults[$name]);
  }

  public function build() {
    $subject = NULL;
    $content = '<span />';
    $settings = [
      'splash' => [
        'source' => static::variableGet('source'),
        'destination' => static::variableGet('destination'),
        'timeout' => static::variableGet('timeout'),
        'body' => static::variableGet('body'),
      ],
    ];
    drupal_add_js($settings, 'setting');

    $file = drupal_get_path('module', 'splash') . '/scripts/splash.js';
    $options = [
//      'defer' => TRUE,
//      'every_page' => TRUE,
    ];
    drupal_add_js($file, 'file', $options);

    $ret = [
      'subject' => $subject,
      'content' => $content,
    ];
    return $ret;
  }
}