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+<?php
+/**
+ * Derivative context for resource loader modules.
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @author Kunal Mehta
+ */
+
+/**
+ * Allows changing specific properties of a context object,
+ * without changing the main one. Inspired by DerivativeContext.
+ *
+ * @since 1.24
+ */
+class DerivativeResourceLoaderContext extends ResourceLoaderContext {
+
+ /**
+ * @var ResourceLoaderContext
+ */
+ private $context;
+ protected $modules;
+ protected $language;
+ protected $direction;
+ protected $skin;
+ protected $user;
+ protected $debug;
+ protected $only;
+ protected $version;
+ protected $hash;
+ protected $raw;
+
+ public function __construct( ResourceLoaderContext $context ) {
+ $this->context = $context;
+ }
+
+ public function getModules() {
+ if ( !is_null( $this->modules ) ) {
+ return $this->modules;
+ } else {
+ return $this->context->getModules();
+ }
+ }
+
+ /**
+ * @param string[] $modules
+ */
+ public function setModules( array $modules ) {
+ $this->modules = $modules;
+ }
+
+ public function getLanguage() {
+ if ( !is_null( $this->language ) ) {
+ return $this->language;
+ } else {
+ return $this->context->getLanguage();
+ }
+ }
+
+ /**
+ * @param string $language
+ */
+ public function setLanguage( $language ) {
+ $this->language = $language;
+ $this->direction = null; // Invalidate direction since it might be based on language
+ $this->hash = null;
+ }
+
+ public function getDirection() {
+ if ( !is_null( $this->direction ) ) {
+ return $this->direction;
+ } else {
+ return $this->context->getDirection();
+ }
+ }
+
+ /**
+ * @param string $direction
+ */
+ public function setDirection( $direction ) {
+ $this->direction = $direction;
+ $this->hash = null;
+ }
+
+ public function getSkin() {
+ if ( !is_null( $this->skin ) ) {
+ return $this->skin;
+ } else {
+ return $this->context->getSkin();
+ }
+ }
+
+ /**
+ * @param string $skin
+ */
+ public function setSkin( $skin ) {
+ $this->skin = $skin;
+ $this->hash = null;
+ }
+
+ public function getUser() {
+ if ( !is_null( $this->user ) ) {
+ return $this->user;
+ } else {
+ return $this->context->getUser();
+ }
+ }
+
+ /**
+ * @param string $user
+ */
+ public function setUser( $user ) {
+ $this->user = $user;
+ $this->hash = null;
+ }
+
+ public function getDebug() {
+ if ( !is_null( $this->debug ) ) {
+ return $this->debug;
+ } else {
+ return $this->context->getDebug();
+ }
+ }
+
+ /**
+ * @param bool $debug
+ */
+ public function setDebug( $debug ) {
+ $this->debug = $debug;
+ $this->hash = null;
+ }
+
+ public function getOnly() {
+ if ( !is_null( $this->only ) ) {
+ return $this->only;
+ } else {
+ return $this->context->getOnly();
+ }
+ }
+
+ /**
+ * @param string $only
+ */
+ public function setOnly( $only ) {
+ $this->only = $only;
+ $this->hash = null;
+ }
+
+ public function getVersion() {
+ if ( !is_null( $this->version ) ) {
+ return $this->version;
+ } else {
+ return $this->context->getVersion();
+ }
+ }
+
+ /**
+ * @param string $version
+ */
+ public function setVersion( $version ) {
+ $this->version = $version;
+ $this->hash = null;
+ }
+
+ public function getRaw() {
+ if ( !is_null( $this->raw ) ) {
+ return $this->raw;
+ } else {
+ return $this->context->getRaw();
+ }
+ }
+
+ /**
+ * @param bool $raw
+ */
+ public function setRaw( $raw ) {
+ $this->raw = $raw;
+ }
+
+ public function getRequest() {
+ return $this->context->getRequest();
+ }
+
+ public function getResourceLoader() {
+ return $this->context->getResourceLoader();
+ }
+
+}