Facebook connect using javascript

Posted: November 1, 2011 in HTML, Javascript
<!DOCTYPE html> 
<html xmlns:fb="https://www.facebook.com/2008/fbml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
        <title>FB JS Connect Tutorial</title>
    </head>
    <body>
        <div id="fb-root"></div>
        <script type="text/javascript">
            var button;
            var userInfo;
            
            window.fbAsyncInit = function() {
                FB.init({ appId: '########', //change the appId to your appId
                    status: true, 
                    cookie: true,
                    xfbml: true,
                    oauth: true});

               //showLoader(true);
               
               function updateButton(response) {
                    button       =   document.getElementById('fb-auth');
                    userInfo     =   document.getElementById('user-info');
                    
                    if (response.authResponse) {
                        //user is already logged in and connected
                        FB.api('/me', function(info) {
                            login(response, info);
                        });
                        
                        button.onclick = function() {
                            FB.logout(function(response) {
                                logout(response);
                            });
                        };
                    } else {
                        //user is not connected to your app or logged out
                        button.innerHTML = 'Login';
                        button.onclick = function() {
                            showLoader(true);
                            FB.login(function(response) {
                                if (response.authResponse) {
                                    FB.api('/me', function(info) {
                                        login(response, info);
                                    });	   
                                } else {
                                    //user cancelled login or did not grant authorization
                                    showLoader(false);
                                }
                            }, {scope:'email,user_birthday,status_update,publish_stream,user_about_me'});  	
                        }
                    }
                }
                
                // run once with current status and whenever the status changes
                FB.getLoginStatus(updateButton);
                FB.Event.subscribe('auth.statusChange', updateButton);	
            };
            (function() {
                var e = document.createElement('script'); e.async = true;
                e.src = document.location.protocol 
                    + '//connect.facebook.net/en_US/all.js';
                document.getElementById('fb-root').appendChild(e);
            }());
            
            
            function login(response, info){ alert('login called');
                if (response.authResponse) {
                    var accessToken                                 =   response.authResponse.accessToken;
                    
                    userInfo.innerHTML                             = '<img src="https://graph.facebook.com/' + info.id + '/picture">' + info.name
                                                                     + "<br /> Your Access Token: " + accessToken;
                    button.innerHTML                               = 'Logout';
                    showLoader(false);
                    document.getElementById('other').style.display = "block";
                }
            }
        
            function logout(response){alert('logout called'); 
                userInfo.innerHTML                             =   "";
                document.getElementById('debug').innerHTML     =   "";
                document.getElementById('other').style.display =   "none";
                showLoader(false);
            }

            //stream publish method
            function streamPublish(name, description, hrefTitle, hrefLink, userPrompt){alert('streamPublish called');
                showLoader(true);
                FB.ui(
                {
                    method: 'stream.publish',
                    message: '',
                    attachment: {
                        name: name,
                        caption: '',
                        description: (description),
                        href: hrefLink
                    },
                    action_links: [
                        { text: hrefTitle, href: hrefLink }
                    ],
                    user_prompt_message: userPrompt
                },
                function(response) {
                    showLoader(false);
                });

            }
            function showStream(){alert('showStream called'); 
                FB.api('/me', function(response) {
                    //console.log(response.id);
                    streamPublish(response.name, 'I like the articles of Thinkdiff.net', 'hrefTitle', 'http://thinkdiff.net', "Share thinkdiff.net");
                });
            }
			
			function feed()
			{
				var share = {
                    method: 'send',
				   message     : "I love thinkdiff.net for facebook app development tutorials",
                   link        : 'http://ithinkdiff.net',
                   picture     : 'http://thinkdiff.net/iphone/lucky7_ios.jpg',
                   name        : 'iOS Apps & Games',
                   description : 'Checkout iOS apps and games from iThinkdiff.net. I found some of them are just awesome!'
                };

				 FB.ui(share, function(response) { 
                   alert(response);
                   FB.api('/platform/posts', { limit: 3 }, function(response) {
					  for (var i=0, l=response.length; i<l; i++) {
						var post = response[i];
						if (post.message) {
						  alert('Message: ' + post.message);
						} else if (post.attachment && post.attachment.name) {
						  alert('Attachment: ' + post.attachment.name);
						}
					  }
					});

                });
				 
				/*FB.ui({
				   method: 'send',
				   message     : "I love thinkdiff.net for facebook app development tutorials",
                   link        : 'http://ithinkdiff.net',
                   picture     : 'http://thinkdiff.net/iphone/lucky7_ios.jpg',
                   name        : 'iOS Apps & Games',
                   description : 'Checkout iOS apps and games from iThinkdiff.net. I found some of them are just awesome!'
				  });*/


			}
            function share(){alert('share called'); 
                showLoader(true);
                var share = {
                    method: 'stream.share',
                    u: 'http://thinkdiff.net/'
                };

                FB.ui(share, function(response) { 
                    showLoader(false);
                    console.log(response); 
                });
            }

            function graphStreamPublish(){alert('graphStreamPublish called'); 
                showLoader(true);
                
                FB.api('/me/feed', 'post', 
                    { 
                        message     : "I love thinkdiff.net for facebook app development tutorials",
                        link        : 'http://ithinkdiff.net',
                        picture     : 'http://thinkdiff.net/iphone/lucky7_ios.jpg',
                        name        : 'iOS Apps & Games',
                        description : 'Checkout iOS apps and games from iThinkdiff.net. I found some of them are just awesome!'
                        
                }, 
                function(response) {
                    showLoader(false);
                    
                    if (!response || response.error) {
                        alert('Error occured');
                    } else {
                        alert('Post ID: ' + response.id);
                    }
                });
            }

            function fqlQuery(){alert('fqlQuery called'); 
                showLoader(true);
                
                FB.api('/me', function(response) {
                    showLoader(false);
                    
                    //http://developers.facebook.com/docs/reference/fql/user/
                    var query       =  FB.Data.query('select name, profile_url, sex, pic_small from user where uid={0}', response.id);
                    query.wait(function(rows) {
                       document.getElementById('debug').innerHTML =  
                         'FQL Information: '+  "<br />" + 
                         'Your name: '      +  rows[0].name                                                            + "<br />" +
                         'Your Sex: '       +  (rows[0].sex!= undefined ? rows[0].sex : "")                            + "<br />" +
                         'Your Profile: '   +  "<a href='" + rows[0].profile_url + "'>" + rows[0].profile_url + "</a>" + "<br />" +
                         '<img src="'       +  rows[0].pic_small + '" alt="" />' + "<br />";
                     });
                });
            }

            function setStatus(){alert('setStatus called'); 
                showLoader(true);
                
                status1 = document.getElementById('status').value;
                FB.api(
                  {
                    method: 'status.set',
                    status: status1
                  },
                  function(response) {
                    if (response == 0){
                        alert('Your facebook status not updated. Give Status Update Permission.');
                    }
                    else{
                        alert('Your facebook status updated');
                    }
                    showLoader(false);
                  }
                );
            }
            
            function showLoader(status){
                if (status)
                    document.getElementById('loader').style.display = 'block';
                else
                    document.getElementById('loader').style.display = 'none';
            }
            
        </script>

        <h3>New JavaScript SDK & OAuth 2.0 based FBConnect Tutorial | Thinkdiff.net</h3>
        <button id="fb-auth">Login</button>
        <div id="loader" style="display:none">
            <img src="ajax-loader.gif" alt="loading..." />
        </div>
        <br />
        <div id="user-info"></div>
        <br />
        <div id="debug"></div>
        
        <div id="other" style="display:none">
            <a href="#" onClick="showStream(); return false;">Publish Wall Post</a> |
            <a href="#" onClick="share(); return false;">Share With Your Friends</a> |
             <a href="#" onClick="feed(); return false;">Feed</a> |
            <a href="#" onClick="graphStreamPublish(); return false;">Publish Stream Using Graph API</a> |
            <a href="#" onClick="fqlQuery(); return false;">FQL Query Example</a>
            
            <br />
            <textarea id="status" cols="50" rows="5">Write your status here and click 'Status Set Using Legacy Api Call'</textarea>
            <br />
            <a href="#" onClick="setStatus(); return false;">Status Set Using Legacy Api Call</a>
        </div>
    </body>
</html>
Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s