src/firefoxos/compass.js

/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
*/

var Compass = {
    getHeading: function(success, error) {
        var listener = function(ev) {
            var orient = {
                trueHeading: ev.alpha,
                magneticHeading: ev.alpha,
                headingAccuracy: 0,
                timestamp: new Date().getTime()
            }
            success(orient);
            // remove listener after first response
            window.removeEventListener('deviceorientation', listener, false);
        }
        return window.addEventListener('deviceorientation', listener, false);
    },
};

var firefoxos = require('cordova/platform');

module.exports = Compass;
require('cordova/firefoxos/commandProxy').add('Compass', Compass);