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
  21 /**
  22  * Generic wrapper for template functions, with interface
  23  * compatible with what we use of PHPTAL 0.7.
  24  * @ingroup Skins
  25  */
  26 abstract class QuickTemplate {
  27
  28         /** @var Config $config */
  29         protected $config;
  30
  31         /**
  32          * @param Config $config
  33          */
  34         function __construct( Config $config = null ) {
  35                 $this->data = [];
  36                 $this->translator = new MediaWikiI18N();
  37                 if ( $config === null ) {
  38                         wfDebug( __METHOD__ . ' was called with no Config instance passed to it' );
  39                         $config = ConfigFactory::getDefaultInstance()->makeConfig( 'main' );
  40                 }
  41                 $this->config = $config;
  42         }
  43
  44         /**
  45          * Sets the value $value to $name
  46          * @param string $name
  47          * @param mixed $value
  48          */
  49         public function set( $name, $value ) {
  50                 $this->data[$name] = $value;
  51         }
  52
  53         /**
  54         * extends the value of data with name $name with the value $value
  55         * @since 1.25
  56         * @param string $name
  57         * @param mixed $value
  58         */
  59         public function extend( $name, $value ) {
  60                 if ( $this->haveData( $name ) ) {
  61                         $this->data[$name] = $this->data[$name] . $value;
  62                 } else {
  63                         $this->data[$name] = $value;
  64                 }
  65         }
  66
  67         /**
  68          * Gets the template data requested
  69          * @since 1.22
  70          * @param string $name Key for the data
  71          * @param mixed $default Optional default (or null)
  72          * @return mixed The value of the data requested or the deafult
  73          */
  74         public function get( $name, $default = null ) {
  75                 if ( isset( $this->data[$name] ) ) {
  76                         return $this->data[$name];
  77                 } else {
  78                         return $default;
  79                 }
  80         }
  81
  82         /**
  83          * @param string $name
  84          * @param mixed $value
  85          */
  86         public function setRef( $name, &$value ) {
  87                 $this->data[$name] =& $value;
  88         }
  89
  90         /**
  91          * @param MediaWikiI18N $t
  92          */
  93         public function setTranslator( &$t ) {
  94                 $this->translator = &$t;
  95         }
  96
  97         /**
  98          * Main function, used by classes that subclass QuickTemplate
  99          * to show the actual HTML output
 100          */
 101         abstract public function execute();
 102
 103         /**
 104          * @private
 105          * @param string $str
 106          * @return string
 107          */
 108         function text( $str ) {
 109                 echo htmlspecialchars( $this->data[$str] );
 110         }
 111
 112         /**
 113          * @private
 114          * @param string $str
 115          * @return string
 116          */
 117         function html( $str ) {
 118                 echo $this->data[$str];
 119         }
 120
 121         /**
 122          * @private
 123          * @param string $str
 124          * @return string
 125          */
 126         function msg( $str ) {
 127                 echo htmlspecialchars( $this->translator->translate( $str ) );
 128         }
 129
 130         /**
 131          * @private
 132          * @param string $str
 133          * @return string
 134          */
 135         function msgHtml( $str ) {
 136                 echo $this->translator->translate( $str );
 137         }
 138
 139         /**
 140          * An ugly, ugly hack.
 141          * @private
 142          * @param string $str
 143          * @return string
 144          */
 145         function msgWiki( $str ) {
 146                 global $wgOut;
 147
 148                 $text = $this->translator->translate( $str );
 149                 echo $wgOut->parse( $text );
 150         }
 151
 152         /**
 153          * @private
 154          * @param string $str
 155          * @return bool
 156          */
 157         function haveData( $str ) {
 158                 return isset( $this->data[$str] );
 159         }
 160
 161         /**
 162          * @private
 163          *
 164          * @param string $str
 165          * @return bool
 166          */
 167         function haveMsg( $str ) {
 168                 $msg = $this->translator->translate( $str );
 169                 return ( $msg != '-' ) && ( $msg != '' ); # ????
 170         }
 171
 172         /**
 173          * Get the Skin object related to this object
 174          *
 175          * @return Skin
 176          */
 177         public function getSkin() {
 178                 return $this->data['skin'];
 179         }
 180
 181         /**
 182          * Fetch the output of a QuickTemplate and return it
 183          *
 184          * @since 1.23
 185          * @return string
 186          */
 187         public function getHTML() {
 188                 ob_start();
 189                 $this->execute();
 190                 $html = ob_get_contents();
 191                 ob_end_clean();
 192                 return $html;
 193         }
 194 }