FB Login

gistfile1.js

/**
 * @fileOverview Signup page JS code.
 * @author <a href="mailto:[email protected]"> Alex Michael </a>
 * @requires PK.js, facebox.js
 */

PK.onPageLoad(function(){
  
     // Once the register page is loaded, make 
     // a request to FB and fill in user fields.
     /**
      * @ignore
      */
     $.facebox.settings.modal = true;
     $.facebox.settings.showCloseBtn = false;
    
     $.facebox("<div style='text-align:center'><div>Please wait while Songjam connects to Facebook.</div><br> " +
           "<img src='/static/imgs/bar-load.gif' /></div>");
    
     FB.getLoginStatus(function(response) {
         if (response.session) {
           setFBUser(response.session);
         } else {
             FB.login(function(response) {
                 if (response.session) {
                     setFBUser(response.session);
                 } else {
                     // user cancelled login
                 }
             });
         }
     });
    
     /**
      * Once the user is successfully logged in, this method
      * sets the user to the PKFB object and then makes a 
      * request to the FB Graph to retrieve information for
      * them.
      * 
      * @param {Object} session The FB session returned from the FB.getLoginStatus() call.
      */
     function setFBUser(session)
     {
         PK.fb.setUser(session);
         FB.api("/me", function(response){
             console.log(response);
             fillFields(response);
             $.facebox.close();
         });
     }
    
     /**
      * Helper methods to fill in the signup form with info from Facebook.
      * 
      * @param {Object} fbResponse The Facebook response.
      */
     function fillFields(fbResponse) 
     {
         $("#name").val(fbResponse.first_name);
         $("#surname").val(fbResponse.last_name);
     }
    
     /**
      * Signs up the user. Used as a callback to click and keyup events in the signup form.
      */
     function signup() 
     {
         var email = $("#email").val();
         var pass  = $("#password").val();
         var name  = $("#name").val();
         var surname = $("#surname").val();
     
         if (email !== "" && pass !== "" && name !== "" && surname != "") {
             $("#signup-btn").html("Creating your account..");
             PK.rpc.user.Ops.create_user({email: email, password:pass, name:name, surname:surname, fbid:PK.fb.userID}, 
             function(response)
             {
                 if (!response.s) {
                     PK.putError(response.err);
                     $("#signup-btn").html("Signup");
                     } else {
                         window.location = response.r_url;
                     }
                 }); 
         }
     }
    
     PK.dom.bind({
         
     "#email #password #name #surname keyup" : function(target, event) 
     {
         if (event.keyCode === 13) {
             signup(target);
         }  
     },
     
     "#signup-btn click" : function(target) 
     {
         signup(target);
     },
     
     "#email blur" : function(target) 
     {
         var email = target.val();
         if (email) {
             PK.rpc.user.Ops.email_exists({email: email}, function(response) {
                 if (response.s) {
                     PK.putError("This email address already exists.");
                 } else {
                     if ($("#msg-container").is(":visible")) {
                        PK.putOK("Okay, this one's fine.") 
                         };
                     }
                 });
             }
         }
     }, true);  
});