Runway JS

  var $button = $("<div id='source-button' class='btn btn-primary btn-xs'>&lt; &gt;</div>").click(function() {
    var html = $(this).parent().html();
    html = cleanSource(html);
    $("#source-modal pre").text(html);
    $("#source-modal").modal();
  });

  $('[data-toggle="popover"]').popover();
  $('[data-toggle="tooltip"]').tooltip();

  $(".demo-component").hover(function() {
    $(this).append($button);
    $button.show();
  }, function() {
    $button.hide();
  });

  function cleanSource(html) {
    var lines = html.split(/\n/);

    lines.shift();
    lines.splice(-1, 1);

    var indentSize = lines[0].length - lines[0].trim().length,
      re = new RegExp(" {" + indentSize + "}");

    lines = lines.map(function(line) {
      if (line.match(re)) {
        line = line.substring(indentSize);
      }

      return line;
    });

    lines = lines.join("\n");

    return lines;
  }