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obernardovieira

Google+ Login button [get info with JS]

obernardovieira
Jan 2nd, 2014
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  1. <html>
  2. <head>
  3.     <title>Demo: Getting an email address using the Google+ Sign-in button</title>
  4.     <style type="text/css">
  5.         html, body { margin: 0; padding: 0; }
  6.         .hide { display: none;}
  7.         .show { display: block;}
  8.     </style>
  9.     <script type="text/javascript">
  10.     /**
  11.     * Global variables to hold the profile and email data.
  12.     */
  13.     var profile, email;
  14.  
  15.     /*
  16.     * Triggered when the user accepts the sign in, cancels, or closes the
  17.     * authorization dialog.
  18.     */
  19.     function loginFinishedCallback(authResult) {
  20.         if (authResult) {
  21.             if (authResult['error'] == undefined){
  22.                 toggleElement('signin-button'); // Hide the sign-in button after successfully signing in the user.
  23.                 gapi.client.load('plus','v1', loadProfile);  // Trigger request to get the email address.
  24.             } else {
  25.                 console.log('An error occurred');
  26.             }
  27.         } else {
  28.             console.log('Empty authResult');  // Something went wrong
  29.         }
  30.     }
  31.  
  32.     /**
  33.     * Uses the JavaScript API to request the user's profile, which includes
  34.     * their basic information. When the plus.profile.emails.read scope is
  35.     * requested, the response will also include the user's primary email address
  36.     * and any other email addresses that the user made public.
  37.     */
  38.     function loadProfile(){
  39.         var request = gapi.client.plus.people.get( {'userId' : 'me'} );
  40.         request.execute(loadProfileCallback);
  41.     }
  42.  
  43.     /**
  44.     * Callback for the asynchronous request to the people.get method. The profile
  45.     * and email are set to global variables. Triggers the user's basic profile
  46.     * to display when called.
  47.     */
  48.     function loadProfileCallback(obj) {
  49.         profile = obj;
  50.  
  51.         // Filter the emails object to find the user's primary account, which might
  52.         // not always be the first in the array. The filter() method supports IE9+.
  53.         email = obj['emails'].filter(function(v) {
  54.             return v.type === 'account'; // Filter out the primary email
  55.         })[0].value; // get the email from the filtered results, should always be defined.
  56.         displayProfile(profile);
  57.     }
  58.  
  59.     /**
  60.     * Display the user's basic profile information from the profile object.
  61.     */
  62.     function displayProfile(profile){
  63.         document.getElementById('name').innerHTML = profile['displayName'];
  64.         document.getElementById('pic').innerHTML = '<img src="' + profile['image']['url'] + '" />';
  65.         document.getElementById('email').innerHTML = email;
  66.         toggleElement('profile');
  67.     }
  68.  
  69.     /**
  70.     * Utility function to show or hide elements by their IDs.
  71.     */
  72.     function toggleElement(id) {
  73.         var el = document.getElementById(id);
  74.         if (el.getAttribute('class') == 'hide') {
  75.             el.setAttribute('class', 'show');
  76.         } else {
  77.             el.setAttribute('class', 'hide');
  78.         }
  79.     }
  80.     </script>
  81.     <script src="https://apis.google.com/js/client:plusone.js" type="text/javascript"></script>
  82. </head>
  83. <body>
  84.     <div id="signin-button" class="show">
  85.         <div class="g-signin"
  86.             data-callback="loginFinishedCallback"
  87.             data-approvalprompt="force"
  88.             data-clientid="YOUR_CLIENT_ID"
  89.             data-scope="https://www.googleapis.com/auth/plus.login https://www.googleapis.com/auth/plus.profile.emails.read"
  90.             data-height="short"
  91.             data-cookiepolicy="single_host_origin"
  92.         >
  93.         </div>
  94.         <!-- In most cases, you don't want to use approvalprompt=force. Specified
  95.         here to facilitate the demo.-->
  96.     </div>
  97.  
  98.     <div id="profile" class="hide">
  99.         <div>
  100.             <span id="pic"></span>
  101.             <span id="name"></span>
  102.         </div>
  103.  
  104.         <div id="email"></div>
  105.     </div>
  106. </body>
  107. </html>
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