A set of functions for generating HTML anchors for static pages. Twitter, Google+, and Facebook are supported.

social-sharing-links.rb

#
# A set of functions for generating HTML anchors for static pages.
# Twitter, Google+, and Facebook are supported.
#
# To create your own links, pass your params hash to the functions,
# as in the "before" block of the test section below.
#
# Used as reference:
# http://blog.hubspot.com/blog/tabid/6307/bid/29544/The-Ultimate-Cheat-Sheet-for-Creating-Social-Media-Buttons.aspx
#

require 'uri'

BASE_URLS = {
  twitter:  "https://twitter.com/intent/tweet",
  google:   "https://plusone.google.com/_/+1/confirm?hl=en&url=http%3A%2F%2F%20",
  facebook: "http://www.facebook.com/share.php?u="
}

def encoded_query_string(params)
  params.map do |param, value|
    [param, URI.encode(value)].join('=')
  end.join('&')
end

def twitter_sharing_link(params)
  link = [BASE_URLS[:twitter], "?", encoded_query_string(params)].join
  "<a href='#{link}'>Share this on Twitter</a>"
end

def google_sharing_link(params)
  link = [BASE_URLS[:google], params[:url]].join
  "<a href='#{link}'>Share this on Google+</a>"
end

def facebook_sharing_link(params)
  link = [BASE_URLS[:facebook], params[:url]].join
  "<a href='#{link}'>Share this on Facebook</a>"
end

require 'minitest/spec'
require 'minitest/autorun'

describe "tests for generating inline links on social media platforms for Nesta articles" do
  before do
    @params = {
      text: ["\u201D", "About Social Sharing", "\u201C", ":"].join,
      url:  "http://jamesabbottdd.com/about-social-sharing",
      via:  "abbotjam"
    }
  end

  it "turns a Hash of query params into a properly encoded URL string" do
    str = encoded_query_string(@params)
    str.must_equal "text=%E2%80%9DAbout%20Social%20Sharing%E2%80%9C:&url=http://jamesabbottdd.com/about-social-sharing&via=abbotjam"
  end

  it "creates a Twitter sharing link" do
    str = twitter_sharing_link(@params)
    str.must_equal "<a href='https://twitter.com/intent/tweet?text=%E2%80%9DAbout%20Social%20Sharing%E2%80%9C:&url=http://jamesabbottdd.com/about-social-sharing&via=abbotjam'>Share this on Twitter</a>"
  end

  it "creates a Google+ sharing link" do
    str = google_sharing_link(@params)
    str.must_equal "<a href='https://plusone.google.com/_/+1/confirm?hl=en&url=http%3A%2F%2F%20http://jamesabbottdd.com/about-social-sharing'>Share this on Google+</a>"
  end

  it "creates a Facebook sharing link" do
    str = facebook_sharing_link(@params)
    str.must_equal "<a href='http://www.facebook.com/share.php?u=http://jamesabbottdd.com/about-social-sharing'>Share this on Facebook</a>"
  end
end

Nice. I've got to get these links going on my sites.

And the schema.org stuff...