app/scripts/controllers/panes-config.js
'use strict';
angular.module('authoringEnvironmentApp').controller('PanesConfigCtrl',
function ($scope, panes) {
$scope.panes = panes.query();
$scope.flipPosition = function (pane) {
pane.position = pane.position === 'left' ? 'right' : 'left';
};
}
);