jquery - Make Bootstrap 3 Tabs Responsive

Question

Currently, when you set up tabs in Bootstrap 3, the tabs are not responsive.

This:

Turns into this:

CSS. Fixing how it looks is easy, just removing the float, etc. at the max-width. However, the content is disjointed from the tab, so a stack of tabs will work like tabs but on smaller viewports you may or may not see the change in content.

---

This is the basic html for making a tabbed navigation:

      <!--begin tabs going in wide content -->
       <ul class="nav nav-tabs" id="maincontent" role="tablist">
          <li class="active"><a href="#home" role="tab" data-toggle="tab">Home</a></li>
          <li><a href="#profile" role="tab" data-toggle="tab">Profile</a></li>
          <li class="dropdown">
             <a href="#" id="myTabDrop1" class="dropdown-toggle" data-toggle="dropdown">Dropdown <span class="caret"></span></a>
             <ul class="dropdown-menu" role="menu" aria-labelledby="myTabDrop1">
                <li><a href="#dropdown1" tabindex="-1" role="tab" data-toggle="tab">@fat</a></li>
                <li><a href="#dropdown2" tabindex="-1" role="tab" data-toggle="tab">@mdo</a></li>
             </ul>
          </li>
       </ul><!--/.nav-tabs.content-tabs -->


       <div class="tab-content">

          <div class="tab-pane fade in active" id="home">
             <p>Home Content : ...</p>
          </div><!--/.tab-pane -->

          <div class="tab-pane fade" id="profile">
             <p>Profile Content : ...</p>
          </div><!--/.tab-pane -->

          <div class="tab-pane fade" id="dropdown1">
             <p>Dropdown1 - ...</p>
          </div><!--/.tab-pane -->

          <div class="tab-pane fade" id="dropdown2">
             <p>Dropdown 2 - ...</p>
          </div><!--/.tab-pane -->

       </div><!--/.tab-content -->

How do you turn the Tabs into the Accordion or Collapse so that it's small viewport friendly?

Answer 1

Slack has a cool way of making tabs small viewport friendly on some of their admin pages. I made something similar using bootstrap. It's kind of a tabs → dropdown.

Demo: http://jsbin.com/nowuyi/1

Here's what it looks like on a big viewport:

Here's how it looks collapsed on a small viewport:

Here's how it looks expanded on a small viewport:

the HTML is exactly the same as default bootstrap tabs.

There is a small JS snippet, which requires jquery (and inserts two span elements into the DOM):

$.fn.responsiveTabs = function() {
  this.addClass('responsive-tabs');
  this.append($('<span class="glyphicon glyphicon-triangle-bottom"></span>'));
  this.append($('<span class="glyphicon glyphicon-triangle-top"></span>'));

  this.on('click', 'li.active > a, span.glyphicon', function() {
    this.toggleClass('open');
  }.bind(this));

  this.on('click', 'li:not(.active) > a', function() {
    this.removeClass('open');
  }.bind(this));
};

$('.nav.nav-tabs').responsiveTabs();

And then there is a lot of css (less):

@xs: 768px;


.responsive-tabs.nav-tabs {
  position: relative;
  z-index: 10;
  height: 42px;
  overflow: visible;
  border-bottom: none;

  @media(min-width: @xs) {
    border-bottom: 1px solid #ddd;
  }

  span.glyphicon {
    position: absolute;
    top: 14px;
    right: 22px;
    &.glyphicon-triangle-top {
      display: none;
    }
    @media(min-width: @xs) {
      display: none;
    }
  }

  > li {
    display: none;
    float: none;
    text-align: center;

    &:last-of-type > a {
      margin-right: 0;
    }

    > a {
      margin-right: 0;
      background: #fff;
      border: 1px solid #DDDDDD;

      @media(min-width: @xs) {
        margin-right: 4px;
      }
    }

    &.active {
      display: block;
      a {
        @media(min-width: @xs) {
          border-bottom-color: transparent; 
        }
        border: 1px solid #DDDDDD;
        border-radius: 2px;
      }
    }

    @media(min-width: @xs) {
      display: block;
      float: left;
    }

  }

  &.open {

    span.glyphicon {
      &.glyphicon-triangle-top {
        display: block;
        @media(min-width: @xs) {
          display: none;
        }
      }
      &.glyphicon-triangle-bottom {
        display: none;
      }
    }

    > li {
      display: block;

      a {
        border-radius: 0;
      }

      &:first-of-type a {
        border-radius: 2px 2px 0 0;
      }
      &:last-of-type a {
        border-radius: 0 0 2px 2px;
      }
    }
  }
}