includes/skins/QuickTemplate.php

   1 <?php
   2 /**
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation; either version 2 of the License, or
   6  * (at your option) any later version.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  16  * http://www.gnu.org/copyleft/gpl.html
  17  *
  18  * @file
  19  */
  20 use MediaWiki\MediaWikiServices;
  21
  22 /**
  23  * Generic wrapper for template functions, with interface
  24  * compatible with what we use of PHPTAL 0.7.
  25  * @ingroup Skins
  26  */
  27 abstract class QuickTemplate {
  28
  29         /**
  30          * @var array
  31          */
  32         public $data;
  33
  34         /**
  35          * @var MediaWikiI18N
  36          */
  37         public $translator;
  38
  39         /** @var Config $config */
  40         protected $config;
  41
  42         /**
  43          * @param Config $config
  44          */
  45         function __construct( Config $config = null ) {
  46                 $this->data = [];
  47                 $this->translator = new MediaWikiI18N();
  48                 if ( $config === null ) {
  49                         wfDebug( __METHOD__ . ' was called with no Config instance passed to it' );
  50                         $config = MediaWikiServices::getInstance()->getMainConfig();
  51                 }
  52                 $this->config = $config;
  53         }
  54
  55         /**
  56          * Sets the value $value to $name
  57          * @param string $name
  58          * @param mixed $value
  59          */
  60         public function set( $name, $value ) {
  61                 $this->data[$name] = $value;
  62         }
  63
  64         /**
  65          * extends the value of data with name $name with the value $value
  66          * @since 1.25
  67          * @param string $name
  68          * @param mixed $value
  69          */
  70         public function extend( $name, $value ) {
  71                 if ( $this->haveData( $name ) ) {
  72                         $this->data[$name] = $this->data[$name] . $value;
  73                 } else {
  74                         $this->data[$name] = $value;
  75                 }
  76         }
  77
  78         /**
  79          * Gets the template data requested
  80          * @since 1.22
  81          * @param string $name Key for the data
  82          * @param mixed $default Optional default (or null)
  83          * @return mixed The value of the data requested or the deafult
  84          */
  85         public function get( $name, $default = null ) {
  86                 if ( isset( $this->data[$name] ) ) {
  87                         return $this->data[$name];
  88                 } else {
  89                         return $default;
  90                 }
  91         }
  92
  93         /**
  94          * @param string $name
  95          * @param mixed &$value
  96          */
  97         public function setRef( $name, &$value ) {
  98                 $this->data[$name] =& $value;
  99         }
 100
 101         /**
 102          * @param MediaWikiI18N &$t
 103          */
 104         public function setTranslator( &$t ) {
 105                 $this->translator = &$t;
 106         }
 107
 108         /**
 109          * Main function, used by classes that subclass QuickTemplate
 110          * to show the actual HTML output
 111          */
 112         abstract public function execute();
 113
 114         /**
 115          * @private
 116          * @param string $str
 117          */
 118         function text( $str ) {
 119                 echo htmlspecialchars( $this->data[$str] );
 120         }
 121
 122         /**
 123          * @private
 124          * @param string $str
 125          */
 126         function html( $str ) {
 127                 echo $this->data[$str];
 128         }
 129
 130         /**
 131          * @private
 132          * @param string $str
 133          */
 134         function msg( $str ) {
 135                 echo htmlspecialchars( $this->translator->translate( $str ) );
 136         }
 137
 138         /**
 139          * @private
 140          * @param string $str
 141          */
 142         function msgHtml( $str ) {
 143                 echo $this->translator->translate( $str );
 144         }
 145
 146         /**
 147          * An ugly, ugly hack.
 148          * @private
 149          * @param string $str
 150          */
 151         function msgWiki( $str ) {
 152                 global $wgOut;
 153
 154                 $text = $this->translator->translate( $str );
 155                 echo $wgOut->parse( $text );
 156         }
 157
 158         /**
 159          * @private
 160          * @param string $str
 161          * @return bool
 162          */
 163         function haveData( $str ) {
 164                 return isset( $this->data[$str] );
 165         }
 166
 167         /**
 168          * @private
 169          *
 170          * @param string $str
 171          * @return bool
 172          */
 173         function haveMsg( $str ) {
 174                 $msg = $this->translator->translate( $str );
 175                 return ( $msg != '-' ) && ( $msg != '' ); # ????
 176         }
 177
 178         /**
 179          * Get the Skin object related to this object
 180          *
 181          * @return Skin
 182          */
 183         public function getSkin() {
 184                 return $this->data['skin'];
 185         }
 186
 187         /**
 188          * Fetch the output of a QuickTemplate and return it
 189          *
 190          * @since 1.23
 191          * @return string
 192          */
 193         public function getHTML() {
 194                 ob_start();
 195                 $this->execute();
 196                 $html = ob_get_contents();
 197                 ob_end_clean();
 198                 return $html;
 199         }
 200 }