includes/content/JavaScriptContent.php

   1 <?php
   2 /**
   3  * Content for JavaScript pages.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @since 1.21
  21  *
  22  * @file
  23  * @ingroup Content
  24  *
  25  * @author Daniel Kinzler
  26  */
  27
  28 /**
  29  * Content for JavaScript pages.
  30  *
  31  * @ingroup Content
  32  */
  33 class JavaScriptContent extends TextContent {
  34
  35         /**
  36          * @var bool|Title|null
  37          */
  38         private $redirectTarget = false;
  39
  40         /**
  41          * @param string $text JavaScript code.
  42          * @param string $modelId the content model name
  43          */
  44         public function __construct( $text, $modelId = CONTENT_MODEL_JAVASCRIPT ) {
  45                 parent::__construct( $text, $modelId );
  46         }
  47
  48         /**
  49          * Returns a Content object with pre-save transformations applied using
  50          * Parser::preSaveTransform().
  51          *
  52          * @param Title $title
  53          * @param User $user
  54          * @param ParserOptions $popts
  55          *
  56          * @return JavaScriptContent
  57          */
  58         public function preSaveTransform( Title $title, User $user, ParserOptions $popts ) {
  59                 global $wgParser;
  60                 // @todo Make pre-save transformation optional for script pages
  61                 // See bug #32858
  62
  63                 $text = $this->getNativeData();
  64                 $pst = $wgParser->preSaveTransform( $text, $title, $user, $popts );
  65
  66                 return new static( $pst );
  67         }
  68
  69         /**
  70          * @return string JavaScript wrapped in a <pre> tag.
  71          */
  72         protected function getHtml() {
  73                 $html = "";
  74                 $html .= "<pre class=\"mw-code mw-js\" dir=\"ltr\">\n";
  75                 $html .= htmlspecialchars( $this->getNativeData() );
  76                 $html .= "\n</pre>\n";
  77
  78                 return $html;
  79         }
  80
  81         /**
  82          * If this page is a redirect, return the content
  83          * if it should redirect to $target instead
  84          *
  85          * @param Title $target
  86          * @return JavaScriptContent
  87          */
  88         public function updateRedirect( Title $target ) {
  89                 if ( !$this->isRedirect() ) {
  90                         return $this;
  91                 }
  92
  93                 return $this->getContentHandler()->makeRedirectContent( $target );
  94         }
  95
  96         /**
  97          * @return Title|null
  98          */
  99         public function getRedirectTarget() {
 100                 if ( $this->redirectTarget !== false ) {
 101                         return $this->redirectTarget;
 102                 }
 103                 $this->redirectTarget = null;
 104                 $text = $this->getNativeData();
 105                 if ( strpos( $text, '/* #REDIRECT */' ) === 0 ) {
 106                         // Extract the title from the url
 107                         preg_match( '/title=(.*?)\\\\u0026action=raw/', $text, $matches );
 108                         if ( isset( $matches[1] ) ) {
 109                                 $title = Title::newFromText( $matches[1] );
 110                                 if ( $title ) {
 111                                         // Have a title, check that the current content equals what
 112                                         // the redirect content should be
 113                                         if ( $this->equals( $this->getContentHandler()->makeRedirectContent( $title ) ) ) {
 114                                                 $this->redirectTarget = $title;
 115                                         }
 116                                 }
 117                         }
 118                 }
 119
 120                 return $this->redirectTarget;
 121         }
 122
 123 }