Ubiquity command to lookup artists on Last.fm

x

CmdUtils.CreateCommand({
  name: "Last.fm",
  synonyms: ["music"],
  description: "Opens the artist page",
  help: "Looks for an Artist page on Last.fm",
  icon: "http://cdn.last.fm/flatness/favicon.2.ico",
  takes: {search: noun_arb_text},
  execute: function( directObj ) {
    var artist = directObj.text;
    Utils.openUrlInBrowser( "http://www.last.fm/music/"+artist );
  },
  preview: function( pblock, directObj ) {
    var artist = directObj.text;
    if (artist.length < 2) pblock.innerHTML = "Looks for an artist page";
    else {
      
      var api_key = "3a6bad64c6351a7ab602a643d97bf01a";
      var artistName = artist;
      
      function requestArtistStats( artistName )
      {   
        
        var getArtistInfoUrl = "http://ws.audioscrobbler.com/2.0/?method=artist.getinfo" +
            "&api_key=" + api_key +
            "&artist=" + encodeURIComponent(artistName);
       
        CmdUtils.previewAjax(pblock, {
          type: "GET",
          url: getArtistInfoUrl,
          datatype: "xml",
          error: function() {
            pblock.innerHTML = "<i>Error retreiving summary.</i>";
          },
          success: function( responseDetails, textStatus ) {   
            
            if( textStatus == "success" )
            {
              parseArtistInfoXML( responseDetails , artistName );        
            }
          }
        });
      }
         
      function parseArtistInfoXML( text, artist ) 
      {
        
        var artistImageSrc = text.getElementsByTagName( "image" )[1].textContent;
        var articleSummary = text.getElementsByTagName( "summary" )[0].textContent;
        
        var previewTemplate = "<img src=\"${img}\" style=\"float: left; max-width: 80px; max-height: 80px; background-color: white; margin:0 15px 15px 0;\" />" +
            "<span class=\"wikisummary\">${summary}</span>";
        var previewData = {
          img: artistImageSrc,
          summary: articleSummary
        };
        
        pblock.innerHTML = CmdUtils.renderTemplate( previewTemplate, previewData ); 
        
      }
    
      requestArtistStats( artistName );

    }
  }
});