fb-share

fb-share.coffee

  initFacebook: ->
    facebookLoaded = false

    openShareDialog = (url) ->
      FB.ui {method: 'feed', link: url}

    window.fbAsyncInit = ->
      facebookLoaded = true

      FB.init({
        appId      : 'XXXXXXXXXXXXXXX',
        status     : false,
        xfbml      : false
      })
      openShareDialog()

    $('a.facebook-share[href]').on 'click', (e) ->
      link = $(this)
      url = link.attr('href')
      if !facebookLoaded
        $.getScript '//connect.facebook.net/en_US/all.js'
      else
        openShareDialog(url)

      e.preventDefault()
      false

twitter-share.coffee

initTwitterIntents: ->
    return if (window.__twitterIntentHandler)

    $('a.twitter-intent[href]').on 'click', (e) ->
      # from https://dev.twitter.com/docs/intents (Limited Dependencies)
      windowOptions = 'scrollbars=yes,resizable=yes,toolbar=no,location=yes'
      width = 550
      height = 420
      winHeight = screen.height
      winWidth = screen.width

      left = Math.round((winWidth / 2) - (width / 2))
      top = 0

      if (winHeight > height)
        top = Math.round((winHeight / 2) - (height / 2))

      window.open this.href, 'intent', windowOptions +
                                      ',width=' + width +
                                      ',height=' + height +
                                      ',left=' + left +
                                      ',top=' + top
      e.returnValue = false
      e.preventDefault && e.preventDefault()
      false