Initial commit

typo3conf/ext/vhs/Classes/ViewHelpers/Page/BreadCrumbViewHelper.php

@@ -0,0 +1,64 @@
+<?php
+namespace FluidTYPO3\Vhs\ViewHelpers\Page;
+
+/*
+ * This file is part of the FluidTYPO3/Vhs project under GPLv2 or later.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE.md file that was distributed with this source code.
+ */
+
+use FluidTYPO3\Vhs\ViewHelpers\Page\Menu\AbstractMenuViewHelper;
+
+/**
+ * ViewHelper to make a breadcrumb link set from a pageUid, automatic or manual
+ *
+ * @author Claus Due <claus@namelesscoder.net>
+ * @author Björn Fromme <fromeme@dreipunktnull.com>, dreipunktnull
+ * @package Vhs
+ * @subpackage ViewHelpers\Page
+ */
+class BreadCrumbViewHelper extends AbstractMenuViewHelper {
+
+	/**
+	 * @return void
+	 */
+	public function initializeArguments() {
+		parent::initializeArguments();
+		$this->registerArgument('pageUid', 'integer', 'Optional parent page UID to use as top level of menu. If left out will be detected from rootLine using $entryLevel.', FALSE, NULL);
+		$this->registerArgument('endLevel', 'integer', 'Optional deepest level of rendering. If left out all levels up to the current are rendered.', FALSE, NULL);
+		$this->overrideArgument('as', 'string', 'If used, stores the menu pages as an array in a variable named after this value and renders the tag content. If the tag content is empty automatic rendering is triggered.', FALSE, 'breadcrumb');
+	}
+
+	/**
+	 * @return string
+	 */
+	public function render() {
+		$pageUid = $this->arguments['pageUid'] > 0 ? $this->arguments['pageUid'] : $GLOBALS['TSFE']->id;
+		$entryLevel = $this->arguments['entryLevel'];
+		$endLevel = $this->arguments['endLevel'];
+		$rawRootLineData = $this->pageSelect->getRootLine($pageUid);
+		$rawRootLineData = array_reverse($rawRootLineData);
+		$rawRootLineData = array_slice($rawRootLineData, $entryLevel, $endLevel);
+		$rootLineData = $rawRootLineData;
+		if (FALSE === (boolean) $this->arguments['showHiddenInMenu']) {
+			$rootLineData = array();
+			foreach ($rawRootLineData as $record) {
+				if (FALSE === (boolean) $record['nav_hide']) {
+					array_push($rootLineData, $record);
+				}
+			}
+		}
+		$rootLine = $this->parseMenu($rootLineData, $rootLineData);
+		if (0 === count($rootLine)) {
+			return NULL;
+		}
+		$this->backupVariables();
+		$this->templateVariableContainer->add($this->arguments['as'], $rootLine);
+		$output = $this->renderContent($rootLine);
+		$this->templateVariableContainer->remove($this->arguments['as']);
+		$this->restoreVariables();
+		return $output;
+	}
+
+}