var DataSource, HasProperties, _, hittest,
  bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },
  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
  hasProp = {}.hasOwnProperty;

_ = require("underscore");

HasProperties = require("../common/has_properties");

hittest = require("../common/hittest");

DataSource = (function(superClass) {
  extend(DataSource, superClass);

  function DataSource() {
    this.defaults = bind(this.defaults, this);
    return DataSource.__super__.constructor.apply(this, arguments);
  }

  DataSource.prototype.type = 'DataSource';

  DataSource.prototype.defaults = function() {
    return _.extend({}, DataSource.__super__.defaults.call(this), {
      selected: hittest.create_hit_test_result(),
      callback: null
    });
  };

  DataSource.prototype.initialize = function(options) {
    DataSource.__super__.initialize.call(this, options);
    return this.listenTo(this, 'change:selected', (function(_this) {
      return function() {
        var ref;
        return (ref = _this.get('callback')) != null ? ref.execute(_this) : void 0;
      };
    })(this));
  };

  return DataSource;

})(HasProperties);

module.exports = {
  Model: DataSource
};
