js2/remoteMwEmbed.js

   1 /*
   2  * this file exposes some of the functionality of mwEmbed to wikis
   3  * that do not yet have js2 enabled
   4  */
   5 var urlparts = getRemoteEmbedPath();
   6 var mwEmbedHostPath = urlparts[0];
   7 var reqAguments = urlparts[1];
   8
   9 addOnloadHook( function(){
  10         //only do rewrites if MV_EMBED / js2 is "off"
  11         if( typeof MV_EMBED_VERSION == 'undefined' ) {
  12                 doPageSpecificRewrite();
  13         }
  14 });
  15
  16 function doPageSpecificRewrite() {
  17         // Add media wizard
  18         if( wgAction == 'edit' || wgAction == 'submit' ) {
  19                 load_mv_embed( function() {
  20                         loadExternalJs( mwEmbedHostPath + '/editPage.js' + reqAguments );
  21                 } );
  22         }
  23
  24         //timed text dispaly:
  25         if(wgPageName.indexOf("TimedText") === 0){
  26                 load_mv_embed( function() {
  27                         loadExternalJs( mwEmbedHostPath + '/mwEmbed/libTimedText/mvTimeTextEdit.js' + reqAguments );
  28                 } );
  29         }
  30
  31         // Firefogg integration
  32         if( wgPageName == "Special:Upload" ){
  33                 load_mv_embed( function() {
  34                         loadExternalJs( mwEmbedHostPath + '/uploadPage.js' + reqAguments );
  35                 } );
  36         }
  37
  38         // Special api proxy page
  39         if( wgPageName == 'MediaWiki:ApiProxy' ){
  40                 var wgEnableIframeApiProxy = true;
  41                 load_mv_embed( function() {
  42                         js_log("Wiki:ApiProxy::");
  43                         loadExternalJs( mwEmbedHostPath + '/apiProxyPage.js' + reqAguments );
  44                 });
  45         }
  46
  47         // OggHandler rewrite for view pages:
  48         var vidIdList = [];
  49         var divs = document.getElementsByTagName( 'div' );
  50         for( var i = 0; i < divs.length; i++ ) {
  51                 if( divs[i].id && divs[i].id.substring( 0, 11 ) == 'ogg_player_' ) {
  52                         vidIdList.push( divs[i].getAttribute( "id" ) );
  53                 }
  54         }
  55         if( vidIdList.length > 0 ) {
  56                 load_mv_embed( function() {
  57                         mvJsLoader.embedVideoCheck( function() {
  58                                 // Do utility rewrite of OggHandler content:
  59                                 rewrite_for_OggHandler( vidIdList );
  60                         } );
  61                 } );
  62         }
  63 }
  64 // will be depreciated in favor of updates to OggHandler
  65 function rewrite_for_OggHandler( vidIdList ){
  66         function procVidId( vidId ){
  67                 //don't process empty vids
  68                 if(!vidId)
  69                         return ;
  70                 js_log('vidIdList on: ' + vidId +' length: ' + vidIdList.length + ' left in the set: ' + vidIdList );
  71
  72                 // Grab the thumbnail and src of the video
  73                 var pimg = $j( '#' + vidId + ' img' );
  74                 var poster_attr = 'poster = "' + pimg.attr( 'src' ) + '" ';
  75                 var pwidth = $j( '#' + vidId).width();
  76                 var pheight = $j( '#' + vidId ).height();
  77
  78                 var tag_type = 'video';
  79
  80                 // Check for audio
  81                 if( pheight == '22' || pheight == '52') {
  82                         //set width to parent width:
  83                         tag_type = 'audio';
  84                         poster_attr = '';
  85                 }
  86
  87                 // Parsed values:
  88                 var src = '';
  89                 var duration_attr = '';
  90                 var wikiTitleKey = $j( '#'+vidId + ' img').filter(':first').attr('src').split('/');
  91                 wikiTitleKey = unescape( wikiTitleKey[ wikiTitleKey.length - 2 ] );
  92                 var re = new RegExp( /videoUrl(&quot;:?\s*)*([^&]*)/ );
  93                 src = re.exec( $j( '#'+vidId ).html() )[2];
  94
  95                 var re = new RegExp( /length(&quot;:?\s*)*([^,]*)/ );
  96                 var dv = re.exec( $j( '#'+vidId ).html() )[2];
  97                 if( dv ){
  98                         duration_attr = 'durationHint="'+ dv +'" ';
  99                 }
 100
 101                 var re = new RegExp( /offset(&quot;:?\s*)*([^&]*)/ );
 102                 offset = re.exec( $j( '#'+vidId ).html() )[2];
 103                 var offset_attr = offset ? 'startOffset="' + offset + '"' : '';
 104
 105                 if( src ) {
 106                         var html_out = '';
 107
 108                         var common_attr = ' id="mwe_' + vidId +'" '+
 109                                         'wikiTitleKey="' + wikiTitleKey + '" ' +
 110                                         'src="' + src + '" ' +
 111                                         duration_attr +
 112                                         offset_attr + ' ';
 113
 114                         if( tag_type == 'audio' ){
 115                                 html_out='<audio' + common_attr + ' style="width:' + pwidth + 'px;"></audio>';
 116                         }else{
 117                                 html_out='<video' + common_attr +
 118                                 poster_attr + ' ' +
 119                                 'style="width:' + pwidth + 'px;height:' + pheight + 'px;">' +
 120                                 '</video>';
 121                         }
 122                         //set the video tag inner html and update the height
 123                         $j( '#' + vidId ).html( html_out )
 124                                 .css('height', pheight + 30);
 125
 126                 }
 127                 rewrite_by_id( 'mwe_' + vidId, function(){
 128                         if( vidIdList.length != 0 ){
 129                                 setTimeout( function(){
 130                                         procVidId( vidIdList.pop() )
 131                                 }, 1);
 132                         }
 133                 });
 134         };
 135         //process each item in the vidIdList (with setTimeout to avoid locking)
 136         procVidId( vidIdList.pop() );
 137 }
 138 function getRemoteEmbedPath() {
 139         for( var i = 0; i < document.getElementsByTagName( 'script' ).length; i++ ) {
 140                 var s = document.getElementsByTagName( 'script' )[i];
 141                 if( s.src.indexOf( '/remoteMwEmbed.js' ) != -1 ) {
 142                         var reqStr = '';
 143                         var scriptPath = '';
 144                         if( s.src.indexOf( '?' ) != -1) {
 145                                 reqStr = s.src.substr( s.src.indexOf( '?' ) );
 146                                 scriptPath = s.src.substr( 0,  s.src.indexOf( '?' ) ).replace( '/remoteMwEmbed.js', '' );
 147                         } else {
 148                                 scriptPath = s.src.replace( '/remoteMwEmbed.js', '' )
 149                         }
 150                         // Use the external_media_wizard path:
 151                         return [scriptPath, reqStr];
 152                 }
 153         }
 154 }
 155
 156 function load_mv_embed( callback ) {
 157         // Inject mv_embed if needed
 158         if( typeof $mw == 'undefined' ) {
 159                 var mvurl = mwEmbedHostPath + '/mwEmbed/mv_embed.js' + reqAguments ;
 160                 importScriptURI( mvurl );
 161         }
 162         check_for_mv_embed( callback );
 163 }
 164
 165 function check_for_mv_embed( callback ) {
 166         if( typeof $mw == 'undefined' ) {
 167                 setTimeout( function(){
 168                         check_for_mv_embed( callback );
 169                 }, 25 );
 170         } else {
 171                 callback();
 172         }
 173 }