includes/CategoryPage.php

   1 <?php
   2 /**
   3  * Special handling for category description pages.
   4  * Modelled after ImagePage.php.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  * http://www.gnu.org/copyleft/gpl.html
  20  *
  21  * @file
  22  */
  23
  24 if ( !defined( 'MEDIAWIKI' ) )
  25         die( 1 );
  26
  27 /**
  28  * Special handling for category description pages, showing pages,
  29  * subcategories and file that belong to the category
  30  */
  31 class CategoryPage extends Article {
  32         # Subclasses can change this to override the viewer class.
  33         protected $mCategoryViewerClass = 'CategoryViewer';
  34
  35         /**
  36          * @param $title Title
  37          * @return WikiCategoryPage
  38          */
  39         protected function newPage( Title $title ) {
  40                 // Overload mPage with a category-specific page
  41                 return new WikiCategoryPage( $title );
  42         }
  43
  44         /**
  45          * Constructor from a page id
  46          * @param $id Int article ID to load
  47          * @return CategoryPage|null
  48          */
  49         public static function newFromID( $id ) {
  50                 $t = Title::newFromID( $id );
  51                 # @todo FIXME: Doesn't inherit right
  52                 return $t == null ? null : new self( $t );
  53                 # return $t == null ? null : new static( $t ); // PHP 5.3
  54         }
  55
  56         function view() {
  57                 $request = $this->getContext()->getRequest();
  58                 $diff = $request->getVal( 'diff' );
  59                 $diffOnly = $request->getBool( 'diffonly',
  60                         $this->getContext()->getUser()->getOption( 'diffonly' ) );
  61
  62                 if ( isset( $diff ) && $diffOnly ) {
  63                         parent::view();
  64                         return;
  65                 }
  66
  67                 if ( !wfRunHooks( 'CategoryPageView', array( &$this ) ) ) {
  68                         return;
  69                 }
  70
  71                 $title = $this->getTitle();
  72                 if ( NS_CATEGORY == $title->getNamespace() ) {
  73                         $this->openShowCategory();
  74                 }
  75
  76                 parent::view();
  77
  78                 if ( NS_CATEGORY == $title->getNamespace() ) {
  79                         $this->closeShowCategory();
  80                 }
  81         }
  82
  83         function openShowCategory() {
  84                 # For overloading
  85         }
  86
  87         function closeShowCategory() {
  88                 // Use these as defaults for back compat --catrope
  89                 $request = $this->getContext()->getRequest();
  90                 $oldFrom = $request->getVal( 'from' );
  91                 $oldUntil = $request->getVal( 'until' );
  92
  93                 $reqArray = $request->getValues();
  94
  95                 $from = $until = array();
  96                 foreach ( array( 'page', 'subcat', 'file' ) as $type ) {
  97                         $from[$type] = $request->getVal( "{$type}from", $oldFrom );
  98                         $until[$type] = $request->getVal( "{$type}until", $oldUntil );
  99
 100                         // Do not want old-style from/until propagating in nav links.
 101                         if ( !isset( $reqArray["{$type}from"] ) && isset( $reqArray["from"] ) ) {
 102                                 $reqArray["{$type}from"] = $reqArray["from"];
 103                         }
 104                         if ( !isset( $reqArray["{$type}to"] ) && isset( $reqArray["to"] ) ) {
 105                                 $reqArray["{$type}to"] = $reqArray["to"];
 106                         }
 107                 }
 108
 109                 unset( $reqArray["from"] );
 110                 unset( $reqArray["to"] );
 111
 112                 $viewer = new $this->mCategoryViewerClass( $this->getContext()->getTitle(), $this->getContext(), $from, $until, $reqArray );
 113                 $this->getContext()->getOutput()->addHTML( $viewer->getHTML() );
 114         }
 115 }