includes/Licenses.php

   1 <?php
   2 /**
   3  * A License class for use on Special:Upload
   4  *
   5  * @package MediaWiki
   6  * @subpackage SpecialPage
   7  *
   8  * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
   9  * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
  10  */
  11
  12 class Licenses {
  13         /**#@+
  14          * @access private
  15          */
  16         /**
  17          * @var string
  18          */
  19         var $msg;
  20
  21         /**
  22          * @var array
  23          */
  24         var $licenses = array();
  25
  26         /**
  27          * @var string
  28          */
  29         var $html;
  30         /**#@-*/
  31
  32         /**
  33          * Constrictor
  34          *
  35          * @param string $str The string to build the licenses member from, will use
  36          *                    wfMsgForContent( 'licenses' ) if null (default: null)
  37          */
  38         function Licenses( $str = null ) {
  39                 // PHP sucks, this should be possible in the constructor
  40                 $this->msg = is_null( $str ) ? wfMsgForContent( 'licenses' ) : $str;
  41                 $this->html = '';
  42
  43                 $this->makeLicenses();
  44                 $tmp = $this->getLicenses();
  45                 $this->makeHtml( $tmp );
  46         }
  47
  48         /**#@+
  49          * @access private
  50          */
  51         function makeLicenses() {
  52                 $levels = array();
  53                 $lines = explode( "\n", $this->msg );
  54
  55                 foreach ( $lines as $line ) {
  56                         if ( strpos( $line, '*' ) !== 0 )
  57                                 continue;
  58                         else {
  59                                 list( $level, $line ) = $this->trimStars( $line );
  60
  61                                 if ( strpos( $line, '|' ) !== false ) {
  62                                         $obj = new License( $line );
  63                                         $this->stackItem( $this->licenses, $levels, $obj );
  64                                 } else {
  65                                         if ( $level < count( $levels ) )
  66                                                 $levels = array_slice( $levels, 0, $level );
  67                                         if ( $level == count( $levels ) )
  68                                                 $levels[$level - 1] = $line;
  69                                         else if ( $level > count( $levels ) )
  70                                                 $levels[] = $line;
  71                                 }
  72                         }
  73                 }
  74         }
  75
  76         function trimStars( $str ) {
  77                 $i = $count = 0;
  78                 $len = strlen( $str );
  79
  80                 while ($len < $i && $str[$i++] == '*')
  81                         ++$count;
  82
  83                 return array( $count, ltrim( $str, '* ' ) );
  84         }
  85
  86         function stackItem( &$list, $path, $item ) {
  87                 $position =& $list;
  88                 if ( $path ) {
  89                         foreach ( $path as $key ) {
  90                                 $position =& $position[$key];
  91                         }
  92                 }
  93                 $position[] = $item;
  94         }
  95
  96         function makeHtml( &$tagset, $depth = 0 ) {
  97                 foreach ( $tagset as $key => $val )
  98                         if ( is_array( $val ) ) {
  99                                 $this->html .= $this->outputOption(
 100                                         $this->msg( $key ),
 101                                         array(
 102                                                 'value' => '',
 103                                                 'disabled' => 'disabled',
 104                                         ),
 105                                         $depth
 106                                 );
 107                                 $this->makeHtml( $val, $depth + 1 );
 108                         } else {
 109                                 $this->html .= $this->outputOption(
 110                                         $this->msg( $val->text ),
 111                                         array(
 112                                                 'value' => $val->template,
 113                                                 'title' => $val->template
 114                                         ),
 115                                         $depth
 116                                 );
 117                         }
 118         }
 119
 120         function outputOption( $val, $attribs = null, $depth ) {
 121                 $val = str_repeat( /* &nbsp */ "\xc2\xa0", $depth * 2 ) . $val;
 122                 return str_repeat( "\t", $depth ) . wfElement( 'option', $attribs, $val ) . "\n";
 123         }
 124
 125         function msg( $str ) {
 126                 $out = wfMsg( $str );
 127                 return wfEmptyMsg( $str, $out ) ? $str : $out;
 128         }
 129
 130         /**#@-*/
 131
 132         /**
 133          *  Accessor for $this->licenses
 134          *
 135          * @return array
 136          */
 137         function getLicenses() { return $this->licenses; }
 138
 139         /**
 140          * Accessor for $this->html
 141          *
 142          * @return string
 143          */
 144         function getHtml() { return $this->html; }
 145 }
 146
 147 class License {
 148         /**
 149          * @var string
 150          */
 151         var $template;
 152
 153         /**
 154          * @var string
 155          */
 156         var $text;
 157
 158         /**
 159          * Constructor
 160          *
 161          * @param string $str
 162          */
 163         function License( $str ) {
 164                 list( $text, $template ) = explode( '|', strrev( $str ), 2 );
 165
 166                 $this->template = strrev( $template );
 167                 $this->text = strrev( $text );
 168         }
 169 }
 170 ?>