Activenavbar 
active navbar is used to set the active navbar link, a navbar link becomes active when you click on it.
Installation
The simplest way to install is to use Bundler.
Add this line to your application's Gemfile:
gem 'activenavbar', '~> 1.0.4'And then execute:
$ bundle
Or install it yourself as:
$ gem install activenavbar
Method
navbar_link(label, path, active_class)
- label: the link label.
- path: the link path or controller path.
- active_class: the style sheet active class.
Usage
Assume we have home, food and beverage page, and have navbar for each page below:
%ul
%li
= link_to "Home", homes_path
%li
= link_to "Food", foods_path
%li
= link_to "Beverage", beverages_path
Assume we have style sheet for navbar below:
ul {
list-style-type: none;
overflow: hidden;
}
li {
float: left;
}
.nav > li > a {
border-right: 1px solid #A80000;
padding: 5px;
color: #000;
}
.nav .active > a,
.nav .active > a:focus {
color: red;
}
Now we want a navbar link becomes active when we click on it:
%ul
= navbar_link "Home", root_path, "active"
= navbar_link '<span class="glyphicon glyphicon-heart"></span> Food', foods_path, "active"
= navbar_link "Beverage", beverages_path, "active"
Well, Home link becomes active when we click on Home link.
HTML output:
<ul>
<li class="active"><a href="/">Home</a></li>
<li class=""><a href="/foods"><span class="glyphicon glyphicon-heart"></span>Food</a></li>
<li class=""><a href="/beverages">Beverage</a></li>
</ul>
License
Copyright (c) 2014 - Present, Bunlong VAN ( Maintainer )