gistfile1.js

'use strict';

angular.module('firebase', []).value('Firebase', Firebase);

// Implicit syncing. angularFire binds a model to $scope and keeps the dat
// synchronized with a Firebase location both ways.
// TODO: Optimize to use child events instead of whole 'value'.
angular.module('firebase').factory('angularFire', ['$q', function($q) {
  return function(url, scope, name, ret) {
    var af = new AngularFire($q, url);
    return af.associate(scope, name, ret);
  };
}]);

function AngularFire($q, url) {
  this._fRef = new Firebase(url);
}
AngularFire.prototype = {
  associate: function($scope, name, ret) {
    var self = this;
    if (ret == undefined) {
      ret = [];
    }

    this._fRef.on('value', function(snap) {
      if (snap && snap.val() != undefined) {
        var val = snap.val();

      }

      self._safeApply($scope,
        function() { $scope[name] = val; });
    });
    return '';
  },
  _watch: function($scope, name) {
    // Watch for local changes.
    var self = this;
    $scope.$watch(name, function() {
      var val = JSON.parse(angular.toJson($scope[name]));
      if (angular.equals(val, self._remoteValue)) {
        return;
      }
      self._fRef.set(val);
    }, true);
  },
  _safeApply: function($scope, fn) {
    var phase = $scope.$root.$$phase;
    if (phase == '$apply' || phase == '$digest') {
      fn();
    } else {
      $scope.$apply(fn);
    }
  }
};