39 };

    40 

    41 IriSP.JSONSerializer = function(DataLoader, url) {

    42   IriSP.Serializer.call(this, DataLoader, url);

    43 };

    44 

    45 IriSP.JSONSerializer.prototype = IriSP.Serializer;

    46 

    47 IriSP.JSONSerializer.prototype.serialize = function(data) {

    48   return JSON.stringify(data);

    49 };

    50 

    51 IriSP.JSONSerializer.prototype.deserialize = function(data) {

    52   return JSON.parse(data);

    53 };

    54 

    55 IriSP.JSONSerializer.prototype.sync = function(callback) {

    56   /* we don't have to do much because jQuery handles json for us */

    57   

    58   /* a wrapper to get a closure because we lose this in callbacks */

    59   var wrapper = function(obj) {

    60     return function(data) {    

    61       obj._data = data;

    62       // sort the data too

    63       obj._data["annotations"].sort(function(a, b) 

    64           { var a_begin = +a.begin;

    65             var b_begin = +b.begin;

    66             return a_begin - b_begin;

    67           });

    68       callback(data);

    69     }

    70   };

    71   

    72   this._DataLoader.get(this._url, wrapper(this));

    73 };

    74 

    75 IriSP.JSONSerializer.prototype.currentMedia = function() {  

    76   return this._data.medias[0]; /* FIXME: don't hardcode it */