Module: FacebookRailsHelper

Defined in:
app/helpers/facebook_rails_helper.rb

Instance Method Summary collapse

Instance Method Details

#facebook_initialization(resize = :auto, app_id = FACEBOOK['app_id'], user_f8id = nil) ⇒ Object 



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# File 'app/helpers/facebook_rails_helper.rb', line 11

def facebook_initialization resize = :auto, app_id = FACEBOOK['app_id'], user_f8id = nil
  begin
    user ||= current_user_f8id
  rescue Exception => e
    logger.info "current_user_f8id exception #{ e.to_s }"
  end
  onload_resize = %{
      var domLoaded = false;
      var facebookLoaded = false;
      var pageLoaded = false;

      function pageLoad() {
        if (domLoaded && facebookLoaded) {
          if (!pageLoaded) {
            pageLoaded = true;
            $(document).trigger('page_loaded');
          }
          sizeToMain();
        }
      }

      function sizeToMain() {
        if (domLoaded && facebookLoaded) {
          var height = $('#main').outerHeight();
          if(height > 100) {
            FB.Canvas.setSize({ width: 760, height: height + 200 });
          }
        }
      }

      $(document).ready(function () {
        domLoaded = true;
        pageLoad();
      });
      $(window).load(function() {
        domLoaded = true; //not neccessary
        pageLoad();
      });
  }

   = if user_f8id
    %{
        FB.getLoginStatus(function(response) {
          if ((response.authResponse && response.authResponse.userID == '#{ user_f8id }') ||
              (response.session && response.session.uid == '#{ user_f8id }')) {
            // logged in and connected user - continue
            $(document).trigger('got_facebook_status');
          } else {
            // no user session available or new user - clear old user's session
            window.location.href = window.location.href + (window.location.href.indexOf('?') >= 0 ? '&' : '?') + 'clear_users_session=true';
          }
        }, true); //force session status reloading
    }
  else
    %{
        FB.getLoginStatus(function(response) {
          $(document).trigger('got_facebook_status');
        });
    }
  end

  %{
    <div id="fb-root"></div>
    <script type="text/javascript">
      #{ onload_resize if resize == :onload }
      window.fbAsyncInit = function() {
        FB.init({ appId: '#{ app_id }',
                  status: true,
                  cookie: true,
                  xfbml: true });
        $(document).trigger('facebook_init');
        #{ 'facebookLoaded = true; pageLoad();' if resize == :onload }
        #{ 'FB.Canvas.setAutoGrow();' if resize == :auto }
        #{  }
      };

      (function() {
        var e = document.createElement('script'); e.async = true;
        e.src = document.location.protocol +
          '//connect.facebook.net/#{ get_facebook_locale }/all.js';
        document.getElementById('fb-root').appendChild(e);
      }());
    </script>
  }.html_safe
end

#reload_back_to_facebook_if_needed_js ⇒ Object 



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# File 'app/helpers/facebook_rails_helper.rb', line 2

def reload_back_to_facebook_if_needed_js
  return '<script>' +
      'if (top == self)' +
      '{' +
      "top.location = '#{facebook_href(url_for( { :controller => controller.controller_name, :action => controller.action_name}.merge params.reject {|k,v| k == 'signed_request'}))}';" +
      '}' +
      '</script>'
end