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diff --git a/www/wiki/skins/chameleon/src/Components/Modifications/HideFor.php b/www/wiki/skins/chameleon/src/Components/Modifications/HideFor.php
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+++ b/www/wiki/skins/chameleon/src/Components/Modifications/HideFor.php
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+<?php
+/**
+ * File containing the HideFor class
+ *
+ * This file is part of the MediaWiki skin Chameleon.
+ *
+ * @copyright 2013 - 2014, Stephan Gambke
+ * @license   GNU General Public License, version 3 (or any later version)
+ *
+ * The Chameleon skin is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ *
+ * The Chameleon skin is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @file
+ * @ingroup Skins
+ */
+
+namespace Skins\Chameleon\Components\Modifications;
+use Skins\Chameleon\Components\Silent;
+use Skins\Chameleon\PermissionsHelper;
+
+/**
+ * HideFor class
+ *
+ * @author Stephan Gambke
+ * @since 1.1
+ * @ingroup Skins
+ */
+class HideFor extends Modification {
+
+	private $permissionsHelper;
+
+	/**
+	 * This method checks if the restriction is applicable and if necessary
+	 * replaces the decorated component by a Silent component
+	 */
+	protected function applyModification() {
+		if ( $this->isHidden() ) {
+			$c = $this->getComponent();
+			$this->setComponent( new Silent( $c->getSkinTemplate(), $c->getDomElement(), $c->getIndent() ) );
+		}
+	}
+
+	/**
+	 * @return bool
+	 */
+	private function isHidden() {
+		$p = $this->getPermissionsHelper();
+		return $p->userHasGroup( 'group' ) && $p->userHasPermission( 'permission' ) && $p->pageIsInNamespace( 'namespace' ) && $p->pageHasCategory( 'category' );
+	}
+
+	/**
+	 * @return PermissionsHelper
+	 */
+	private function getPermissionsHelper() {
+		if ( $this->permissionsHelper === null ) {
+			$this->permissionsHelper = new PermissionsHelper( $this->getSkinTemplate()->getSkin(), $this->getDomElementOfModification(), true );
+		}
+
+		return $this->permissionsHelper;
+	}
+}