Параллельная навигация на низшем уровне подразделов bitrix:catalog.section.list

<?if(!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true)die();
/** @var array $arParams */
/** @var array $arResult */
/** @global CMain $APPLICATION */
/** @global CUser $USER */
/** @global CDatabase $DB */
/** @var CBitrixComponentTemplate $this */
/** @var string $templateName */
/** @var string $templateFile */
/** @var string $templateFolder */
/** @var string $componentPath */
/** @var CBitrixComponent $component */
use Bitrix\Main\Loader;
use Bitrix\Main\ModuleManager;

$this->setFrameMode(true);
$this->addExternalCss("/bitrix/css/main/bootstrap.css");

if (!isset($arParams['FILTER_VIEW_MODE']) || (string)$arParams['FILTER_VIEW_MODE'] == '')
   $arParams['FILTER_VIEW_MODE'] = 'VERTICAL';
$arParams['USE_FILTER'] = (isset($arParams['USE_FILTER']) && $arParams['USE_FILTER'] == 'Y' ? 'Y' : 'N');

$isVerticalFilter = ('Y' == $arParams['USE_FILTER'] && $arParams["FILTER_VIEW_MODE"] == "VERTICAL");
$isSidebar = ($arParams["SIDEBAR_SECTION_SHOW"] == "Y" && isset($arParams["SIDEBAR_PATH"]) && !empty($arParams["SIDEBAR_PATH"]));
$isFilter = ($arParams['USE_FILTER'] == 'Y');

if ($isFilter)
{
   $arFilter = array(
      "IBLOCK_ID" => $arParams["IBLOCK_ID"],
      "ACTIVE" => "Y",
      "GLOBAL_ACTIVE" => "Y",
   );
   if (0 < intval($arResult["VARIABLES"]["SECTION_ID"]))
      $arFilter["ID"] = $arResult["VARIABLES"]["SECTION_ID"];
   elseif ('' != $arResult["VARIABLES"]["SECTION_CODE"])
      $arFilter["=CODE"] = $arResult["VARIABLES"]["SECTION_CODE"];

   $obCache = new CPHPCache();
   if ($obCache->InitCache(36000, serialize($arFilter), "/iblock/catalog"))
   {
      $arCurSection = $obCache->GetVars();
   }
   elseif ($obCache->StartDataCache())
   {
      $arCurSection = array();
      if (Loader::includeModule("iblock"))
      {
         $dbRes = CIBlockSection::GetList(array(), $arFilter, false, array("ID"));

         if(defined("BX_COMP_MANAGED_CACHE"))
         {
            global $CACHE_MANAGER;
            $CACHE_MANAGER->StartTagCache("/iblock/catalog");

            if ($arCurSection = $dbRes->Fetch())
               $CACHE_MANAGER->RegisterTag("iblock_id_".$arParams["IBLOCK_ID"]);

            $CACHE_MANAGER->EndTagCache();
         }
         else
         {
            if(!$arCurSection = $dbRes->Fetch())
               $arCurSection = array();
         }
      }
      $obCache->EndDataCache($arCurSection);
   }
   if (!isset($arCurSection))
      $arCurSection = array();
}
?>
<div class="row">
<?
if ($isVerticalFilter)
   include($_SERVER["DOCUMENT_ROOT"]."/".$this->GetFolder()."/section_vertical.php");
else
   include($_SERVER["DOCUMENT_ROOT"]."/".$this->GetFolder()."/section_horizontal.php");
?>
</div>

<?
if (!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED!==true) die();

$arViewModeList = array('LIST', 'LINE', 'TEXT', 'TILE');

$arDefaultParams = array(
   'VIEW_MODE' => 'LIST',
   'SHOW_PARENT_NAME' => 'Y',
   'HIDE_SECTION_NAME' => 'N'
);

$arParams = array_merge($arDefaultParams, $arParams);

if (!in_array($arParams['VIEW_MODE'], $arViewModeList))
   $arParams['VIEW_MODE'] = 'LIST';
if ('N' != $arParams['SHOW_PARENT_NAME'])
   $arParams['SHOW_PARENT_NAME'] = 'Y';
if ('Y' != $arParams['HIDE_SECTION_NAME'])
   $arParams['HIDE_SECTION_NAME'] = 'N';

$arResult['VIEW_MODE_LIST'] = $arViewModeList;

if (0 < $arResult['SECTIONS_COUNT'])
{
   if ('LIST' != $arParams['VIEW_MODE'])
   {
      $boolClear = false;
      $arNewSections = array();
      foreach ($arResult['SECTIONS'] as &$arOneSection)
      {
         if (1 < $arOneSection['RELATIVE_DEPTH_LEVEL'])
         {
            $boolClear = true;
            continue;
         }
         $arNewSections[] = $arOneSection;
      }
      unset($arOneSection);
      if ($boolClear)
      {
         $arResult['SECTIONS'] = $arNewSections;
         $arResult['SECTIONS_COUNT'] = count($arNewSections);
      }
      unset($arNewSections);
   }
}

if (0 < $arResult['SECTIONS_COUNT'])
{
   $boolPicture = false;
   $boolDescr = false;
   $arSelect = array('ID');
   $arMap = array();
   if ('LINE' == $arParams['VIEW_MODE'] || 'TILE' == $arParams['VIEW_MODE'])
   {
      reset($arResult['SECTIONS']);
      $arCurrent = current($arResult['SECTIONS']);
      if (!isset($arCurrent['PICTURE']))
      {
         $boolPicture = true;
         $arSelect[] = 'PICTURE';
      }
      if ('LINE' == $arParams['VIEW_MODE'] && !array_key_exists('DESCRIPTION', $arCurrent))
      {
         $boolDescr = true;
         $arSelect[] = 'DESCRIPTION';
         $arSelect[] = 'DESCRIPTION_TYPE';
      }
   }
   if ($boolPicture || $boolDescr)
   {
      foreach ($arResult['SECTIONS'] as $key => $arSection)
      {
         $arMap[$arSection['ID']] = $key;
      }
      $rsSections = CIBlockSection::GetList(array(), array('ID' => array_keys($arMap)), false, $arSelect);
      while ($arSection = $rsSections->GetNext())
      {
         if (!isset($arMap[$arSection['ID']]))
            continue;
         $key = $arMap[$arSection['ID']];
         if ($boolPicture)
         {
            $arSection['PICTURE'] = intval($arSection['PICTURE']);
            $arSection['PICTURE'] = (0 < $arSection['PICTURE'] ? CFile::GetFileArray($arSection['PICTURE']) : false);
            $arResult['SECTIONS'][$key]['PICTURE'] = $arSection['PICTURE'];
            $arResult['SECTIONS'][$key]['~PICTURE'] = $arSection['~PICTURE'];
         }
         if ($boolDescr)
         {
            $arResult['SECTIONS'][$key]['DESCRIPTION'] = $arSection['DESCRIPTION'];
            $arResult['SECTIONS'][$key]['~DESCRIPTION'] = $arSection['~DESCRIPTION'];
            $arResult['SECTIONS'][$key]['DESCRIPTION_TYPE'] = $arSection['DESCRIPTION_TYPE'];
            $arResult['SECTIONS'][$key]['~DESCRIPTION_TYPE'] = $arSection['~DESCRIPTION_TYPE'];
         }
      }
   }
}
?>