source: extensions/AdminTools/include/MultiView.class.php @ 25617

<?php
defined('ADMINTOOLS_ID') or die('Hacking attempt!');

class MultiView
{
  private $is_admin;

  private $data = array();

  function __construct()
  {
    global $conf;

    $this->data = array_merge(
      array(
        'view_as' => 0,
        'theme' => '',
        'lang' => '',
        'show_queries' => $conf['show_queries'],
        'debug_l10n' => $conf['debug_l10n'],
        'debug_template' => $conf['debug_template'],
        'template_combine_files' => $conf['template_combine_files'],
        'no_history' => false,
        'purge_template' => false,
        ),
      pwg_get_session_var('multiview', array())
      );
  }

  public function is_admin()
  {
    return $this->is_admin;
  }

  public function get_data()
  {
    return $this->data;
  }

  private function save()
  {
    pwg_set_session_var('multiview', $this->data);
  }

  public function get_clean_url($with_amp=false)
  {
    if (script_basename() == 'picture')
    {
      $url = duplicate_picture_url(array(), array_keys($this->data));
    }
    else if (script_basename() == 'index')
    {
      $url = duplicate_index_url(array(), array_keys($this->data));
    }
    else
    {
      $url = get_query_string_diff(array_keys($this->data));
    }

    if ($with_amp)
    {
      $url.= strpos($url, '?')!==false ? '&' : '?';
    }

    return $url;
  }

  public function user_init()
  {
    $this->is_admin = is_admin();

    if ($this->is_admin)
    {
      global $user, $conf;

      $this->data['view_as'] = $user['id'];
      $this->data['theme'] = $user['theme'];
      $this->data['lang'] = $user['language'];

      $refresh = false;

      // view_as
      if (isset($_GET['view_as']))
      {
        $this->data['view_as'] = (int)$_GET['view_as'];
      }
      if ($this->data['view_as'] != $user['id'])
      {
        $user = build_user($this->data['view_as'], true);
        $this->data['theme'] = $user['theme'];
        $this->data['lang'] = $user['language'];
      }

      // theme
      if (isset($_GET['theme']))
      {
        $this->data['theme'] = $_GET['theme'];
      }
      $user['theme'] = $this->data['theme'];

      // lang
      if (isset($_GET['lang']))
      {
        $this->data['lang'] = $_GET['lang'];
      }
      $user['language'] = $this->data['lang'];

      // show_queries
      if (isset($_GET['show_queries']))
      {
        $this->data['show_queries'] = (bool)$_GET['show_queries'];
      }
      $conf['show_queries'] = $this->data['show_queries'];

      // debug_l10n
      if (isset($_GET['debug_l10n']))
      {
        $this->data['debug_l10n'] = (bool)$_GET['debug_l10n'];
      }
      $conf['debug_l10n'] = $this->data['debug_l10n'];

      // debug_template
      if (isset($_GET['debug_template']))
      {
        $this->data['debug_template'] = (bool)$_GET['debug_template'];
      }
      $conf['debug_template'] = $this->data['debug_template'];

      // template_combine_files
      if (isset($_GET['template_combine_files']))
      {
        $this->data['template_combine_files'] = (bool)$_GET['template_combine_files'];
      }
      $conf['template_combine_files'] = $this->data['template_combine_files'];

      // no_history
      if (isset($_GET['no_history']))
      {
        $this->data['no_history'] = (bool)$_GET['no_history'];
      }
      if ($this->data['no_history'])
      {
        add_event_handler('pwg_log_allowed', create_function('', 'return false;'));
      }

      // purge_template
      if (isset($_GET['purge_template']))
      {
        $this->data['purge_template'] = true;
        $refresh = true;
      }

      $this->save();

      if ($refresh)
      {
        redirect($this->get_clean_url());
      }
    }
  }

  public function init()
  {
    // can't know if user is admin, not build yet
    // so only do non-critical tasks only

    if ($this->data['purge_template'])
    {
      global $template;
      $template->delete_compiled_templates();
      FileCombiner::clear_combined_files();

      $this->data['purge_template'] = false;
      $this->save();
    }
  }
}