Facebook Login

social.js

/**
 * @author www.juliocanares.com/cv
 * @email juliocanares@gmail.com
 */
 
var getJSUserData, loginUser, postToFacebook;

getJSUserData = function (callback) {
    FB.getLoginStatus((function (response) {
        if (response.status === "connected") {
            callback(response, 1);
        } else if (response.status === "not_authorized") {
            callback(response, 0);
        } else {
            callback(response, 0)
        }
    }), true);
};


loginUser = function (callback) {
    if (isMobile.any()) {
        document.location.href = 'https://www.facebook.com/dialog/oauth?client_id=' + "APP_ID" + '&redirect_uri=' + document.location.href + '&scope=APP_PERMISSIONS';
    }
    else {
        FB.login((function (response) {
            if (response.authResponse) {
                FB.api("/me", function (response) {
                    callback(response, true);
                });
            } else {
                callback(response, false);
            }
        }), {
            scope: 'APP_PERMISSIONS'
        });
    }

};

var isMobile = {
    Android: function () {
        return navigator.userAgent.match(/Android/i);
    },
    BlackBerry: function () {
        return navigator.userAgent.match(/BlackBerry/i);
    },
    iOS: function () {
        return navigator.userAgent.match(/iPhone|iPad|iPod/i);
    },
    Opera: function () {
        return navigator.userAgent.match(/Opera Mini/i);
    },
    Windows: function () {
        return navigator.userAgent.match(/IEMobile/i);
    },
    any: function () {
        return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows());
    }
};