css styling the facebook Login Button, best practices

javascript css facebook iframe

21,173

Solution 1

As you can see in the fb docu, the div.fb-login-button is replaced by an iframe by the script you load externally. To style this button yourself, you could just create a button which is styled depending on your wishes and trigger the login mechanism yourself.

For further information, read here.

Solution 2

Although quite old, but here is sample code that I am using.

<!--HTML-->
<button id="customBtn" (click)='checkLoginState();'>
  <span class="icon"></span>
  <span class="buttonText">Facebook</span>
</button>
<div id='fb-status-login'></div>

Below is the CSS(Inspired by google button) you can use. For logo, you can download any 32px*32px png.

//CSS
#customBtn {
    display: inline-block;
    background: white;
    color: #444;
    width: 190px;
    border-radius: 5px;
    border: thin solid #888;
    box-shadow: 1px 1px 1px grey;
    white-space: nowrap;
  }
  #customBtn:hover {
    cursor: pointer;
  }
  span.label {
    font-family: serif;
    font-weight: normal;
  }
  span.icon {
    background: url('/assets/images/f-normal.png') transparent 5px 50% no-repeat;
    display: inline-block;
    vertical-align: middle;
    width: 42px;
    height: 42px;
  }
  span.buttonText {
    display: inline-block;
    vertical-align: middle;
    padding-left: 42px;
    padding-right: 42px;
    font-size: 14px;
    font-weight: bold;
    /* Use the Roboto font that is loaded in the <head> */
    font-family: 'Roboto', sans-serif;
  }

Inside your component (I am using Angular 4), you can define function like this.

public checkLoginState() {
   console.log('checking login status');
    FB.getLoginStatus((response)=> {
      this.statusChangeCallback(response);
    });
  }
  public statusChangeCallback(response) {
    console.log('statusChangeCallback');
    console.log(response);
    if (response.status === 'connected') {
      console.log('status was already connected. will test api.');
     this.testAPI();
    } else if(response.status ==='not_authorized'){
      console.log('status was not authorised. will call login');

      FB.login((response)=> {
        if (response.status === 'connected') {
          console.log('status is now connected. will test api.');

          this.testAPI();
        } else {
          console.log('fatal.');

          document.getElementById('fb-status-login').innerHTML = 'some serious shit happened'; 
        }
      });

    } else{
      document.getElementById('fb-status-login').innerHTML = 'Please log ' +
        'into this app.';
    }
  }
  public  testAPI() {
    console.log('Welcome!  Fetching your information.... ');
    FB.api('/me', function(response) {
      console.log('Successful login for: ' + response.name);
      document.getElementById('fb-status-login').innerHTML =
        'Thanks for logging in, ' + response.name + '!';
    });
  }

21,173

Louis

Updated on July 09, 2022

Comments

Louis almost 2 years

I am using the Facebook Login Button for Single Sign On in my webapp (code below). But I can't figure out how to control the button's styles with css. I see the Facebook plugin inserts an iframe in my page...

<div id="fb-root"></div>
<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = "//connect.facebook.net/fr_CA/all.js#xfbml=1&appId=myid";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>
<div class="fb-login-button" data-max-rows="1" data-size="large" data-show-faces="false" data-auto-logout-link="true"></div>

But this doesn't render :

.fb-login-button {
    width: 300px !important;
    font-size: 16px !important;
    line-height: 30px !important;
    padding: 3px 8px !important;
}

JSfiddle : http://jsfiddle.net/4SqGn/

Do you know how to control the button styles please ?

Hendra Nucleo about 10 years

Create the working fiddle for the code, so we can examine your problem and provide solution. Thanks.
Louis about 10 years

sorry, I added the jsfiddle

Louis about 10 years

thanks, I took the quickstart code from your link, but the button they use <fb:login-button show-faces="true" size="xlarge" max-rows="1" onlogin="Log.info('onlogin_callback')">Facebook</fb:login-bu‌tton> is the still the FB "Login button". Can you provide a replacenet code for a customizable button that works with the api ? ...i.e. <div id="customFbBtn" type="button" class="customFbSignIn" onclick='FB.login(function(response){});'> <span class="FBicon"></span> <span class="FBbuttonText">Sign in with Facebook</span> </div> doesn't trigger the login
NightOwl888 about 6 years

You meant click instead of (click) for the HTML attribute name, didn't you?
Manish Bansal about 6 years

As i mentioned, i am using angular so (click) is a valid syntax. But you can use onclick for normal html.