includes/CategoryPage.php

   1 <?php
   2 /**
   3  * Class for viewing MediaWiki category description pages.
   4  * Modelled after ImagePage.php.
   5  *
   6  * @file
   7  */
   8
   9 if ( !defined( 'MEDIAWIKI' ) )
  10         die( 1 );
  11
  12 /**
  13  * Special handling for category description pages, showing pages,
  14  * subcategories and file that belong to the category
  15  */
  16 class CategoryPage extends Article {
  17         # Subclasses can change this to override the viewer class.
  18         protected $mCategoryViewerClass = 'CategoryViewer';
  19
  20         /**
  21          * @param $title Title
  22          * @return WikiCategoryPage
  23          */
  24         protected function newPage( Title $title ) {
  25                 // Overload mPage with a category-specific page
  26                 return new WikiCategoryPage( $title );
  27         }
  28
  29         /**
  30          * Constructor from a page id
  31          * @param $id Int article ID to load
  32          * @return CategoryPage|null
  33          */
  34         public static function newFromID( $id ) {
  35                 $t = Title::newFromID( $id );
  36                 # @todo FIXME: Doesn't inherit right
  37                 return $t == null ? null : new self( $t );
  38                 # return $t == null ? null : new static( $t ); // PHP 5.3
  39         }
  40
  41         function view() {
  42                 $request = $this->getContext()->getRequest();
  43                 $diff = $request->getVal( 'diff' );
  44                 $diffOnly = $request->getBool( 'diffonly',
  45                         $this->getContext()->getUser()->getOption( 'diffonly' ) );
  46
  47                 if ( isset( $diff ) && $diffOnly ) {
  48                         parent::view();
  49                         return;
  50                 }
  51
  52                 if ( !wfRunHooks( 'CategoryPageView', array( &$this ) ) ) {
  53                         return;
  54                 }
  55
  56                 $title = $this->getTitle();
  57                 if ( NS_CATEGORY == $title->getNamespace() ) {
  58                         $this->openShowCategory();
  59                 }
  60
  61                 parent::view();
  62
  63                 if ( NS_CATEGORY == $title->getNamespace() ) {
  64                         $this->closeShowCategory();
  65                 }
  66         }
  67
  68         function openShowCategory() {
  69                 # For overloading
  70         }
  71
  72         function closeShowCategory() {
  73                 // Use these as defaults for back compat --catrope
  74                 $request = $this->getContext()->getRequest();
  75                 $oldFrom = $request->getVal( 'from' );
  76                 $oldUntil = $request->getVal( 'until' );
  77
  78                 $reqArray = $request->getValues();
  79
  80                 $from = $until = array();
  81                 foreach ( array( 'page', 'subcat', 'file' ) as $type ) {
  82                         $from[$type] = $request->getVal( "{$type}from", $oldFrom );
  83                         $until[$type] = $request->getVal( "{$type}until", $oldUntil );
  84
  85                         // Do not want old-style from/until propagating in nav links.
  86                         if ( !isset( $reqArray["{$type}from"] ) && isset( $reqArray["from"] ) ) {
  87                                 $reqArray["{$type}from"] = $reqArray["from"];
  88                         }
  89                         if ( !isset( $reqArray["{$type}to"] ) && isset( $reqArray["to"] ) ) {
  90                                 $reqArray["{$type}to"] = $reqArray["to"];
  91                         }
  92                 }
  93
  94                 unset( $reqArray["from"] );
  95                 unset( $reqArray["to"] );
  96
  97                 $viewer = new $this->mCategoryViewerClass( $this->getContext()->getTitle(), $this->getContext(), $from, $until, $reqArray );
  98                 $this->getContext()->getOutput()->addHTML( $viewer->getHTML() );
  99         }
 100 }