examples/hoofbeats/javascripts/library.js

   1 /* vi: set et sw=4 ts=4 si: */
   2 $(function() {
   3     var library = function() {
   4         // For readability:
   5         this.initialized = false;
   6
   7         this.fetchCount = 100;
   8         this.fetchOffset = 0;
   9         this.mediaItems = [];
  10
  11         this.initialize = function() {
  12             if (this.initialized)
  13                 return;
  14
  15             if (window.tizen === undefined) {
  16                 throw Error("You need the Tizen web API  to run Hoofbeats.");
  17             }
  18
  19             this.audioTypeFilter = new tizen.AttributeFilter(
  20                 "type", "EXACTLY", "AUDIO");
  21             this.videoTypeFilter = new tizen.AttributeFilter(
  22                 "type", "EXACTLY", "VIDEO");
  23             this.typeFilter = new tizen.CompositeFilter(
  24                 "UNION", [this.audioTypeFilter, this.videoTypeFilter]);
  25
  26             this.sortMode = new tizen.SortMode("trackNumber", "ASC");
  27         };
  28
  29         this.scan = function() {
  30             this.initialize()
  31
  32             this.mediaItems = [];
  33             this.fetchOffset = 0;
  34
  35             tizen.content.find(
  36                 this.findCB.bind(this),
  37                 this.errorCB.bind(this),
  38                 null,
  39                 this.typeFilter,
  40                 this.sortMode,
  41                 this.fetchCount,
  42                 this.fetchOffset);
  43         };
  44
  45         this.errorCB = function(error) {
  46             console.log("Error: " + error.name);
  47             throw new Error(error.name);
  48         };
  49
  50         this.findCB = function(items) {
  51             var self = this;
  52
  53             items.forEach(function(item, index, items) {
  54                 self.mediaItems.push(item);
  55                 window.MusicBrainz.getArtist(item.name).done(function(data) {
  56                     console.log(data);
  57                 });
  58             });
  59
  60             if (items.length == this.fetchCount) {
  61                 // There *might* be more items.
  62                 this.fetchOffset += this.fetchCount;
  63                 tizen.content.find(
  64                     this.findCB.bind(this),
  65                     this.errorCB.bind(this),
  66                     null,
  67                     this.typeFilter,
  68                     this.sortMode,
  69                     this.fetchCount,
  70                     this.fetchOffset);
  71             }
  72         };
  73     };
  74
  75     library.prototype = {
  76         set initialized(value) {this._initialized = value; },
  77         get initialized() { return this._initialized; }
  78     };
  79
  80     window.HoofbeatsLibrary = library;
  81 });