skins/common/metadata.js

   1 // Exif metadata display for MediaWiki file uploads
   2 //
   3 // Add an expand/collapse link and collapse by default if set to
   4 // (with JS disabled, user will see all items)
   5 //
   6 // attachMetadataToggle('mw_metadata', 'More...', 'Fewer...');
   7
   8 function attachMetadataToggle( tableId, showText, hideText ) {
   9         if ( document.createTextNode ) {
  10                 var box = document.getElementById( tableId );
  11                 if ( !box ) {
  12                         return false;
  13                 }
  14
  15                 var tbody = box.getElementsByTagName('tbody')[0];
  16
  17                 var row = document.createElement( 'tr' );
  18
  19                 var col = document.createElement( 'td' );
  20                 col.colSpan = 2;
  21
  22                 var link = document.createElement( 'a' );
  23                 link.href = '#';
  24
  25                 link.onclick = function() {
  26                         if ( box.className == 'mw_metadata collapsed' ) {
  27                                 changeText( link, hideText );
  28                                 box.className = 'mw_metadata expanded';
  29                         } else {
  30                                 changeText( link, showText );
  31                                 box.className = 'mw_metadata collapsed';
  32                         }
  33                         return false;
  34                 };
  35
  36                 var text = document.createTextNode( hideText );
  37
  38                 link.appendChild( text );
  39                 col.appendChild( link );
  40                 row.appendChild( col );
  41                 tbody.appendChild( row );
  42
  43                 // And collapse!
  44                 link.onclick();
  45
  46                 return true;
  47         }
  48         return false;
  49 }