Front page links in admin of Prestashop 1.5.x

Dispatcher.php

<?php 

// override/classes/Dispatcher.php
class Dispatcher extends DispatcherCore
{

  public static $controllerType = null;

  public function getInstanceCustom($controllerType = 'public') {
    self::$controllerType = $controllerType;
    $dispatcher = new Dispatcher();
    self::$controllerType = null;
    return $dispatcher;
  }

  protected function __construct()
  {
    $this->use_routes = (bool)Configuration::get('PS_REWRITING_SETTINGS');

    if (self::$controllerType) {
      switch (self::$controllerType) {
        case 'admin':
          $this->front_controller = self::FC_ADMIN;
          $this->controller_not_found = 'adminnotfound';
          $this->default_controller = 'adminhome';
          $this->use_routes = false;
          break;

        case 'module':
          $this->front_controller = self::FC_MODULE;
          $this->controller_not_found = 'pagenotfound';
          $this->default_controller = 'default';
          break;

        case 'front':
        default:
          $this->front_controller = self::FC_FRONT;
          $this->controller_not_found = 'pagenotfound';
          $this->default_controller = 'index';
          break;
      }
    } else {
      // Select right front controller
      if (defined('_PS_ADMIN_DIR_'))
      {
        $this->front_controller = self::FC_ADMIN;
        $this->controller_not_found = 'adminnotfound';
        $this->default_controller = 'adminhome';
        $this->use_routes = false;
      }
      elseif (Tools::getValue('fc') == 'module')
      {
        $this->front_controller = self::FC_MODULE;
        $this->controller_not_found = 'pagenotfound';
        $this->default_controller = 'default';
      }
      else
      {
        $this->front_controller = self::FC_FRONT;
        $this->controller_not_found = 'pagenotfound';
        $this->default_controller = 'index';
      }
    }

    $this->setRequestUri();

    // Switch language if needed (only on front)
    if (in_array($this->front_controller, array(self::FC_FRONT, self::FC_MODULE)))
      Tools::switchLanguage();

    if (Language::isMultiLanguageActivated())
      $this->multilang_activated = true;

    $this->loadRoutes();
  }
}

example.php

<?php

// Usage
Context::getContext()->link->getPageLinkCustom('order', true, null, array('step'=>1, 'id_order'=>1), false, 'front');

Link.php

<?php

// override/classes/Link.php
class Link extends LinkCore
{
  public function getPageLinkCustom($controller, $ssl = false, $id_lang = null, $request = null, $request_url_encode = false, $controllerType = 'public')
  {
    $controller = Tools::strReplaceFirst('.php', '', $controller);

    if (!$id_lang)
      $id_lang = (int)Context::getContext()->language->id;

    if (!is_array($request))
    {
      // @FIXME html_entity_decode has been added due to '&amp;' => '%3B' ...
      $request = html_entity_decode($request);
      if ($request_url_encode)
        $request = urlencode($request);
      parse_str($request, $request);
    }

    $uri_path = Dispatcher::getInstanceCustom($controllerType)->createUrl($controller, $id_lang, $request);
    $url = ($ssl && $this->ssl_enable) ? Tools::getShopDomainSsl(true) : Tools::getShopDomain(true);
    $url .= __PS_BASE_URI__.$this->getLangLink($id_lang).ltrim($uri_path, '/');

    return $url;
  }
}