tweetEmbed.js

(function() {

  /**
   * Main TweetEmbed object with settings
   * and helper functions to build "Tweet this"
   * links around desired text.
   *
   * @type {Object}
   */

  var TweetEmbed = {

    // Settings ---------- //
    settings: {
      tweets: $('.tweet-embed'),
      tweet_url: 'http://twitter.com/home/?status=',
      tweet_source: '@handle',
      post_url: window.location.href,
      bitly_login: 'login_here',
      bitly_key: 'key_here'
    },

    // Initialization ---------- //
    init: function() {
      s = this.settings;
      this.tweetSweep();
      this.getShortUrl(s.post_url);
    },

    // URL Constructor ---------- //
    tweetSweep: function(shorturl) {
      if (!shorturl) {
        shorturl = '';
      }
      
      for (var i = 0; i < s.tweets.length; i++) {

        var tweet = $(s.tweets[i]);
        var tweet_text = $(tweet).text();

        // Build the URL
        $(tweet).attr({
          href: s.tweet_url + tweet_text + ' ' + s.tweet_source + ' ' + shorturl,
          target: '_blank'
        });
      }
    },

    // URL Shortening via Bitly API ---------- //
    getShortUrl: function(url) {
      var accessToken = s.bitly_key;
      var url = 'https://api-ssl.bitly.com/v3/shorten?access_token=' + accessToken + '&longUrl=' + encodeURIComponent(url);
      var self = this;

      $.getJSON(url, function(response) {
        var short = response.data.url;
        self.tweetSweep(short);
      });
    }

  }; // end TweetEmbed

  // Fire off TweetEmbed's initialization 
  TweetEmbed.init();
})();