examples/hoofbeats/javascripts/app/store.js

   1 /* vi: set et sw=4 ts=4 si: */
   2 (function(app, $) {
   3     var Store = function() {
   4         this.reset();
   5         this.scan();
   6     }
   7
   8     Store.prototype = {
   9         reset: function() {
  10             this.scanCompleted = false;
  11         },
  12
  13         scan: function() {
  14             var self = this;
  15
  16             if (self.scanCompleted) {
  17                 return;
  18             }
  19
  20             console.log("Store.scan: entered.");
  21             if (app.library) {
  22                 app.library.scan().then(function() {
  23                     self.scanCompleted = true;
  24                     console.log(
  25                         "Store.scan: completed. " +
  26                         app.library.size +
  27                         " items in the library.");
  28                 });
  29             } else {
  30                 setTimeout(function() {
  31                     self.scan();
  32                 }, 100);
  33             }
  34         },
  35
  36         getMediaItems: function(deferred) {
  37             var self = this,
  38                 d = deferred || new $.Deferred();
  39
  40             console.log("Store.getMediaItems: entered.");
  41             if (self.scanCompleted) {
  42                 console.log("Store.getMediaItems: scan is completed, resolving promise.");
  43                 deferred.resolve(app.library.items);
  44             } else {
  45                 // If the scan is not completed, we must be still scanning.
  46                 console.log("Store.getMediaItems: scan still pending. Trying again later.");
  47                 setTimeout(function() {
  48                     return self.getMediaItems(d);
  49                 }, 100);
  50             }
  51
  52             return d.promise();
  53         }
  54     };
  55
  56     app.Store = new Store();
  57 })(window.Hoofbeats, window.jQuery);