jquery.sharer.js.coffee

$(document).ready ->
  $("a[data-share]").on "click", (e) ->
    e.preventDefault()
    network = $(this).data('share')
    width   = 550
    height  = 430
    left    = ($(window).width() - width) / 2
    top     = ($(window).height() - height) / 2
    url     = this.href
    options = 'status=1' + ',width=' + width + ',height=' + height + ',top=' + top + ',left=' + left
    window.open url, network, options
    false

social_link_helper.rb

module SocialLinkHelper

  def social_link_to(title, network, data = {}, options = {})
    LinkGenerator.new(title, network, data, options).to_html
  end

  class LinkGenerator
    include ActionView::Helpers::UrlHelper
    include ActionView::Helpers::JavaScriptHelper
    include Rails.application.routes.url_helpers

    def initialize(title, network, data, options)
      @title = title
      @network = network
      @data = data
      default = {
        'data-share' => @network,
        target: '_blank'
      }
      @options = default.merge(options)
    end

    def to_html
      html = link_to generate_title.html_safe, generate_url, @options
    end

    private

    def generate_title
      "<i class='icon-#{@network}'></i> #{@title}"
    end

    def generate_url
      send("#{@network}")
    end

    def facebook
      base_url = 'http://www.facebook.com/sharer.php?s=100&'
      image_url = @data[:image]
      parameters = URI.escape(@data.except!(:image).collect { |k,v| "p[#{k}]=#{v}" }.join('&') + "&p[images][0]=#{image_url}")
      base_url + parameters 
    end

    def twitter
      base_url = 'https://twitter.com/share?'
      parameters = URI.escape(@data.collect { |k,v| "#{k}=#{v}" }.join('&'))
      base_url + parameters 
    end
  end

end

Usage.md

Usage

= social_link_to "Tweet", 'twitter', { url: object_url(@object), text: @object.title }, 'data-share' => 'twitter'