| /* |
| * Copyright 2013 Research In Motion Limited. |
| * |
| * Licensed 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. |
| */ |
| |
| /* global PluginResult */ |
| |
| module.exports = { |
| getHeading: function (success, fail, args, env) { |
| var result = new PluginResult(args, env), |
| callback = function (orientation) { |
| var info = { |
| magneticHeading: orientation.alpha, |
| trueHeading: 360-orientation.alpha, |
| headingAccuracy: 360-(2*orientation.alpha), |
| timestamp: new Date().getTime() |
| }; |
| window.removeEventListener("deviceorientation", callback); |
| result.callbackOk(info, false); |
| }; |
| window.addEventListener("deviceorientation", callback); |
| result.noResult(true); |
| } |
| }; |