#3: Set Up Facebook Login for Your WebsiteAt this point, you'll see Facebook Login among your website app options. Click the Set Up button to get started. Next, you'll fill in the information about how and where you'll use the app. You can add the Facebook Login feature on any app across multiple devices.
The Login button is a simple way to trigger the Facebook Login process on your website or web app. If someone hasn't logged into your app yet, they'll see this button, and clicking it will open a Login dialog, starting the login flow.
The method which you are using is rendering login button from the Facebook Javascript code. However, you can write your own Javascript code function to mimic the functionality. Here is how to do it -
onclick
method on anchor tag which would actually do the real job.<a href="#" onclick="fb_login();"><img src="images/fb_login_awesome.jpg" border="0" alt=""></a>
window.fbAsyncInit = function() {
FB.init({
appId : 'YOUR_APP_ID',
oauth : true,
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
};
function fb_login(){
FB.login(function(response) {
if (response.authResponse) {
console.log('Welcome! Fetching your information.... ');
//console.log(response); // dump complete info
access_token = response.authResponse.accessToken; //get access token
user_id = response.authResponse.userID; //get FB UID
FB.api('/me', function(response) {
user_email = response.email; //get user email
// you can store this data into your database
});
} else {
//user hit cancel button
console.log('User cancelled login or did not fully authorize.');
}
}, {
scope: 'public_profile,email'
});
}
(function() {
var e = document.createElement('script');
e.src = document.location.protocol + '//connect.facebook.net/en_US/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
Please note that the above function is fully tested and works. You just need to put your facebook APP ID and it will work.
I got it working with a call to something as simple as
function fb_login() {
FB.login( function() {}, { scope: 'email,public_profile' } );
}
I don't know if facebook will ever be able to block this circumvention, but for now I can use whatever HTML or image I want to call fb_login
and it works fine.
Reference: Facebook API Docs
It is actually possible only using CSS, however, the image you use to replace must be the same size as the original facebook log in button. Fortunately Facebook delivers the button in different sizes.
From facebook:
size - Different sized buttons: small, medium, large, xlarge - the default is medium. https://developers.facebook.com/docs/reference/plugins/login/
Set the login iframe opacity to 0 and show a background image in the parent div
.fb_iframe_widget iframe {
opacity: 0;
}
.fb_iframe_widget {
background-image: url(another-button.png);
background-repeat: no-repeat;
}
If you use an image that is bigger than the original facebook button, the part of the image that is outside the width and height of the original button will not be clickable.
Found a site on google explaining some changes, according to the author of the page fb does not allow custom buttons. Heres the website.
Unfortunately, it’s against Facebook’s developer policies, which state:
You must not circumvent our intended limitations on core Facebook features.
The Facebook Connect button is intended to be rendered in FBML, which means it’s only meant to look the way Facebook lets it.
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