Module: Facebooker::Rails::Helpers::FbConnect

Defined in:
lib/facebooker/rails/helpers/fb_connect.rb

Instance Method Summary collapse

Instance Method Details

#fb_connect_javascript_tag(options = {}) ⇒ Object 



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# File 'lib/facebooker/rails/helpers/fb_connect.rb', line 5

def fb_connect_javascript_tag(options = {})
  # accept both Rails and Facebook locale formatting, i.e. "en-US" and "en_US".
  lang = "/#{options[:lang].to_s.gsub('-', '_')}" if options[:lang]
  # dont use the javascript_include_tag helper since it adds a .js at the end
  if request.ssl?
    "<script src=\"https://ssl.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php#{lang}\" type=\"text/javascript\"></script>"
  else
    "<script src=\"http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php#{lang}\" type=\"text/javascript\"></script>"
  end
end

#fb_login_button(*args) ⇒ Object

Render an <fb:login-button> element

Examples

<%= fb_login_button%>
=> <fb:login-button></fb:login-button>

Specifying a javascript callback

<%= fb_login_button 'update_something();'%>
=> <fb:login-button onlogin='update_something();'></fb:login-button>

Adding options See: wiki.developers.facebook.com/index.php/Fb:login-button

<%= fb_login_button 'update_something();', :size => :small, :background => :dark%>
=> <fb:login-button background='dark' onlogin='update_something();' size='small'></fb:login-button>

:text option allows you to set the text value of the button. *A note!* This will only do what you expect it to do if you set :v => 2 as well.

<%= fb_login_button 'update_somethign();',
     :text => 'Loginto Facebook', :v => 2 %>
=> <fb:login-button v='2' onlogin='update_something();'>Login to Facebook</fb:login-button>



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# File 'lib/facebooker/rails/helpers/fb_connect.rb', line 97

def (*args)

  callback = args.first
  options = args[1] || {}
  options.merge!(:onlogin=>callback) if callback

  text = options.delete(:text)

  content_tag("fb:login-button",text, options)
end

#init_fb_connect(*required_features, &proc) ⇒ Object

For information on the :app_settings argument see wiki.developers.facebook.com/index.php/JS_API_M_FB.Facebook.Init_2 While it would be nice to treat :app_settings as a hash, some of the arguments do different things if they are a string vs a javascript function and Rails’ Hash#to_json always quotes strings so there is no way to indicate when the value should be a javascript function. For this reason :app_settings needs to be a string that is valid JSON (including the {}‘s).



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# File 'lib/facebooker/rails/helpers/fb_connect.rb', line 22

def init_fb_connect(*required_features, &proc)
  init_fb_connect_with_options({},*required_features, &proc)
end

#init_fb_connect_with_options(options = {}, *required_features, &proc) ⇒ Object 



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# File 'lib/facebooker/rails/helpers/fb_connect.rb', line 26

def init_fb_connect_with_options(options = {},*required_features, &proc)
  additions = ""
  if block_given?
    additions = capture(&proc)
  end

  # Yes, app_settings is set to a string of an empty JSON element. That's intentional.
  options = options.merge({:app_settings => '{}'})

  if required_features.last.is_a?(Hash)
    options.merge!(required_features.pop.symbolize_keys)
  end

  if request.ssl?
    init_string = "FB.init('#{Facebooker.api_key}','/xd_receiver_ssl.html', #{options[:app_settings]});"
  else
    init_string = "FB.init('#{Facebooker.api_key}','/xd_receiver.html', #{options[:app_settings]});"
  end
  unless required_features.blank?
     init_string = <<-FBML
     #{case options[:js]
       when :jquery then "jQuery(document).ready("
       when :dojo then "dojo.addOnLoad("
       when :mootools then "window.addEvent('domready',"
       else "Element.observe(window,'load',"
       end} function() {
        FB_RequireFeatures(#{required_features.to_json}, function() {
          #{init_string}
          #{additions}
        });
      });
      FBML
  end

  # block_is_within_action_view? is rails 2.1.x and has been
  # deprecated.  rails >= 2.2.x uses block_called_from_erb?
  block_tester = respond_to?(:block_is_within_action_view?) ?
    :block_is_within_action_view? : :block_called_from_erb?

  if block_given? && send(block_tester, proc)
    versioned_concat(javascript_tag(init_string),proc.binding)
  else
    javascript_tag init_string
  end
end