AtoomaMacAccelerometerExtensions

background.js

chrome.identity.getAuthToken({ 'interactive': true }, function(access_token) {

    var dir = null;
    var threshold = 9;

    window.addEventListener('deviceorientation', function(event) {
      var a = event.alpha;
      var b = event.beta;
      var g = event.gamma;
      
      sendData(b, g);
      
    }, false);


    function sendData(beta, gamma) {
        var tdir = null;
        if ((Math.abs(beta) > Math.abs(gamma)))
            if (beta > threshold) 
                tdir = 1; 
            else if (beta < -threshold)
                tdir = 0;
            else
                tdir = null;
        else
            if (gamma > threshold) 
                tdir = 3; 
            else if (gamma < -threshold) 
                tdir = 2;
            else
                tdir = null;
        
        if (dir != tdir && tdir != null) {
            var xhr = new XMLHttpRequest();
            xhr.open('POST', "http://192.168.1.101:8080/tilted", true);
            xhr.setRequestHeader("Content-type","application/x-www-form-urlencoded");
            xhr.send("access_token="+access_token);

        } 
        dir = tdir;

    }

});