resources/mediawiki/legacy/mediawiki.legacy.IEFixes.js

   1 /*
   2  * Legacy emulation for the now depricated skins/common/IEFixes.js
   3  *
   4  * Internet Explorer JavaScript fixes
   5  */
   6
   7 ( function( $, mw ) {
   8
   9 /* Support */
  10
  11 /**
  12  * Expand links for printing
  13  */
  14 String.prototype.hasClass = function( classWanted ) {
  15         var classArr = this.split(/\s/);
  16         for ( var i = 0; i < classArr.length; i++ ) {
  17                 if ( classArr[i].toLowerCase() == classWanted.toLowerCase() ) {
  18                         return true;
  19                 }
  20         }
  21         return false;
  22 }
  23
  24 /* Extension */
  25
  26 $.extend( true, mw.legacy, {
  27
  28         /* Global Variables */
  29
  30         'isMSIE55': ( window.showModalDialog && window.clipboardData && window.createPopup ),
  31         'doneIETransform': null,
  32         'doneIEAlphaFix': null,
  33         'expandedURLs': null,
  34
  35         /* Functions */
  36
  37         'hookit': function() {
  38                 if ( !doneIETransform && document.getElementById && document.getElementById( 'bodyContent' ) ) {
  39                         doneIETransform = true;
  40                         relativeforfloats();
  41                         fixalpha();
  42                 }
  43         },
  44         /**
  45          * Fixes PNG alpha transparency
  46          */
  47         function fixalpha( logoId ) {
  48                 // bg
  49                 if ( isMSIE55 && !doneIEAlphaFix ) {
  50                         var plogo = document.getElementById( logoId || 'p-logo' );
  51                         if ( !plogo ) {
  52                                 return;
  53                         }
  54                         var logoa = plogo.getElementsByTagName('a')[0];
  55                         if ( !logoa ) {
  56                                 return;
  57                         }
  58                         var bg = logoa.currentStyle.backgroundImage;
  59                         var imageUrl = bg.substring( 5, bg.length - 2 );
  60                         doneIEAlphaFix = true;
  61                         if ( imageUrl.substr( imageUrl.length - 4 ).toLowerCase() == '.png' ) {
  62                                 var logospan = logoa.appendChild( document.createElement( 'span' ) );
  63                                 logoa.style.backgroundImage = 'none';
  64                                 logospan.style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(src=' + imageUrl + ')';
  65                                 logospan.style.height = '100%';
  66                                 logospan.style.position = 'absolute';
  67                                 logospan.style.width = logoa.currentStyle.width;
  68                                 logospan.style.cursor = 'hand';
  69                                 // Center image with hack for IE5.5
  70                                 if ( document.documentElement.dir == 'rtl' ) {
  71                                         logospan.style.right = '50%';
  72                                         logospan.style.setExpression( 'marginRight', '"-" + (this.offsetWidth / 2) + "px"' );
  73                                 } else {
  74                                         logospan.style.left = '50%';
  75                                         logospan.style.setExpression( 'marginLeft', '"-" + (this.offsetWidth / 2) + "px"' );
  76                                 }
  77                                 logospan.style.top = '50%';
  78                                 logospan.style.setExpression( 'marginTop', '"-" + (this.offsetHeight / 2) + "px"' );
  79                                 var linkFix = logoa.appendChild( logoa.cloneNode() );
  80                                 linkFix.style.position = 'absolute';
  81                                 linkFix.style.height = '100%';
  82                                 linkFix.style.width = '100%';
  83                         }
  84                 }
  85         },
  86         /*
  87          * Fixes IE6 disappering float bug
  88          */
  89         'relativeforfloats': function() {
  90                 var bc = document.getElementById( 'bodyContent' );
  91                 if ( bc ) {
  92                         var tables = bc.getElementsByTagName( 'table' );
  93                         var divs = bc.getElementsByTagName( 'div' );
  94                 }
  95                 setrelative( tables );
  96                 setrelative( divs );
  97         },
  98         'setrelative': function ( nodes ) {
  99                 var i = 0;
 100                 while ( i < nodes.length ) {
 101                         if( ( ( nodes[i].style.float && nodes[i].style.float != ( 'none' ) ||
 102                                 ( nodes[i].align && nodes[i].align != ( 'none' ) ) ) &&
 103                                 ( !nodes[i].style.position || nodes[i].style.position != 'relative' ) ) )
 104                         {
 105                                 nodes[i].style.position = 'relative';
 106                         }
 107                         i++;
 108                 }
 109         },
 110         'onbeforeprint': function() {
 111                 expandedURLs = [];
 112                 var contentEl = document.getElementById( 'content' );
 113                 if ( contentEl ) {
 114                         var allLinks = contentEl.getElementsByTagName( 'a' );
 115                         for ( var i = 0; i < allLinks.length; i++ ) {
 116                                 if ( allLinks[i].className.hasClass( 'external' ) && !allLinks[i].className.hasClass( 'free' ) ) {
 117                                         var expandedLink = document.createElement( 'span' );
 118                                         var expandedText = document.createTextNode( ' (' + allLinks[i].href + ')' );
 119                                         expandedLink.appendChild( expandedText );
 120                                         allLinks[i].parentNode.insertBefore( expandedLink, allLinks[i].nextSibling );
 121                                         expandedURLs[i] = expandedLink;
 122                                 }
 123                         }
 124                 }
 125         },
 126         'onafterprint': function() {
 127                 for ( var i = 0; i < expandedURLs.length; i++ ) {
 128                         if ( expandedURLs[i] ) {
 129                                 expandedURLs[i].removeNode( true );
 130                         }
 131                 }
 132         }
 133 } );
 134
 135 /* Initialization */
 136
 137 $( document ).ready( function() {
 138         mw.legacy.hookit();
 139 } );
 140
 141 } )( jQuery, mediaWiki );