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
   6 var urlparts = getRemoteEmbedPath();
   7 var mwEmbedHostPath = urlparts[0];
   8 var reqAguments = urlparts[1];
   9
  10 addOnloadHook( function(){
  11         //only do rewrites if MV_EMBED / js2 is "off"
  12         if( typeof MV_EMBED_VERSION == 'undefined' ) {
  13                 doPageSpecificRewrite();
  14         }
  15 });
  16
  17 function doPageSpecificRewrite() {
  18         // Add media wizard
  19         if( wgAction == 'edit' || wgAction == 'submit' ) {
  20                 load_mv_embed( function() {
  21                         loadExternalJs( mwEmbedHostPath + '/editPage.js' + reqAguments );
  22                 } );
  23         }
  24
  25         //timed text dispaly:
  26         if(wgPageName.indexOf("TimedText") === 0){
  27                 load_mv_embed( function() {
  28                         loadExternalJs( mwEmbedHostPath + '/mwEmbed/libTimedText/mvTimeTextEdit.js' + reqAguments );
  29                 } );
  30         }
  31
  32         // Firefogg integration
  33         if( wgPageName == "Special:Upload" ){
  34                 load_mv_embed( function() {
  35                         loadExternalJs( mwEmbedHostPath + '/uploadPage.js' + reqAguments );
  36                 } );
  37         }
  38
  39         // Special api proxy page
  40         if( wgPageName == 'MediaWiki:ApiProxy' ){
  41                 var wgEnableIframeApiProxy = true;
  42                 load_mv_embed( function() {
  43                         js_log("Wiki:ApiProxy::");
  44                         loadExternalJs( mwEmbedHostPath + '/apiProxyPage.js' + reqAguments );
  45                 });
  46         }
  47
  48         // OggHandler rewrite for view pages:
  49         var vidIdList = [];
  50         var divs = document.getElementsByTagName( 'div' );
  51         for( var i = 0; i < divs.length; i++ ) {
  52                 if( divs[i].id && divs[i].id.substring( 0, 11 ) == 'ogg_player_' ) {
  53                         vidIdList.push( divs[i].getAttribute( "id" ) );
  54                 }
  55         }
  56         if( vidIdList.length > 0 ) {
  57                 load_mv_embed( function() {
  58                         mvJsLoader.embedVideoCheck( function() {
  59                                 // Do utility rewrite of OggHandler content:
  60                                 rewrite_for_OggHandler( vidIdList );
  61                         } );
  62                 } );
  63         }
  64 }
  65 // will be depreciated in favor of updates to OggHandler
  66 function rewrite_for_OggHandler( vidIdList ){
  67         function procVidId( vidId ){
  68                 //don't process empty vids
  69                 if(!vidId)
  70                         return ;
  71                 js_log('vidIdList on: ' + vidId +' length: ' + vidIdList.length + ' left in the set: ' + vidIdList );
  72
  73                 // Grab the thumbnail and src of the video
  74                 var pimg = $j( '#' + vidId + ' img' );
  75                 var poster_attr = 'poster = "' + pimg.attr( 'src' ) + '" ';
  76                 var pwidth = $j( '#' + vidId).width();
  77                 var pheight = $j( '#' + vidId ).height();
  78
  79                 var tag_type = 'video';
  80
  81                 // Check for audio
  82                 if( pheight == '22' || pheight == '52') {
  83                         //set width to parent width:
  84                         tag_type = 'audio';
  85                         poster_attr = '';
  86                 }
  87
  88                 // Parsed values:
  89                 var src = '';
  90                 var duration_attr = '';
  91                 var wikiTitleKey = $j( '#'+vidId + ' img').filter(':first').attr('src').split('/');
  92                 wikiTitleKey = unescape( wikiTitleKey[ wikiTitleKey.length - 2 ] );
  93                 var re = new RegExp( /videoUrl(&quot;:?\s*)*([^&]*)/ );
  94                 src = re.exec( $j( '#'+vidId ).html() )[2];
  95
  96                 var re = new RegExp( /length(&quot;:?\s*)*([^,]*)/ );
  97                 var dv = re.exec( $j( '#'+vidId ).html() )[2];
  98                 if( dv ){
  99                         duration_attr = 'durationHint="'+ dv +'" ';
 100                 }
 101
 102                 var re = new RegExp( /offset(&quot;:?\s*)*([^&]*)/ );
 103                 offset = re.exec( $j( '#'+vidId ).html() )[2];
 104                 var offset_attr = offset ? 'startOffset="' + offset + '"' : '';
 105
 106                 if( src ) {
 107                         var html_out = '';
 108
 109                         var common_attr = ' id="mwe_' + vidId +'" '+
 110                                         'wikiTitleKey="' + wikiTitleKey + '" ' +
 111                                         'src="' + src + '" ' +
 112                                         duration_attr +
 113                                         offset_attr + ' ';
 114
 115                         if( tag_type == 'audio' ){
 116                                 html_out='<audio' + common_attr + ' style="width:' + pwidth + 'px;"></audio>';
 117                         }else{
 118                                 html_out='<video' + common_attr +
 119                                 poster_attr + ' ' +
 120                                 'style="width:' + pwidth + 'px;height:' + pheight + 'px;">' +
 121                                 '</video>';
 122                         }
 123                         //set the video tag inner html and update the height
 124                         $j( '#' + vidId ).html( html_out )
 125                                 .css('height', pheight + 30);
 126
 127                 }
 128                 rewrite_by_id( 'mwe_' + vidId, function(){
 129                         if( vidIdList.length != 0 ){
 130                                 setTimeout( function(){
 131                                         procVidId( vidIdList.pop() )
 132                                 }, 1);
 133                         }
 134                 });
 135         };
 136         //process each item in the vidIdList (with setTimeout to avoid locking)
 137         procVidId( vidIdList.pop() );
 138 }
 139 function getRemoteEmbedPath() {
 140         for( var i = 0; i < document.getElementsByTagName( 'script' ).length; i++ ) {
 141                 var s = document.getElementsByTagName( 'script' )[i];
 142                 if( s.src.indexOf( '/remoteMwEmbed.js' ) != -1 ) {
 143                         var reqStr = '';
 144                         var scriptPath = '';
 145                         if( s.src.indexOf( '?' ) != -1) {
 146                                 reqStr = s.src.substr( s.src.indexOf( '?' ) );
 147                                 scriptPath = s.src.substr( 0,  s.src.indexOf( '?' ) ).replace( '/remoteMwEmbed.js', '' );
 148                         } else {
 149                                 scriptPath = s.src.replace( '/remoteMwEmbed.js', '' )
 150                         }
 151                         // Use the external_media_wizard path:
 152                         return [scriptPath, reqStr];
 153                 }
 154         }
 155 }
 156
 157 function load_mv_embed( callback ) {
 158         // Inject mv_embed if needed
 159         if( typeof $mw == 'undefined' ) {
 160                 var mvurl = mwEmbedHostPath + '/mwEmbed/mv_embed.js' + reqAguments ;
 161                 importScriptURI( mvurl );
 162         }
 163         check_for_mv_embed( callback );
 164 }
 165
 166 function check_for_mv_embed( callback ) {
 167         if( typeof $mw == 'undefined' ) {
 168                 setTimeout( function(){
 169                         check_for_mv_embed( callback );
 170                 }, 25 );
 171         } else {
 172                 callback();
 173         }
 174 }