Extends Headroom.js plugin (https://github.com/WickyNilliams/headroom.js) by adding methods to freeze/unfreeze the current headroom's state.

• freeze method: When called, this method will freeze the current headroom's state (pinned or unpinned). Headroom will not react to the user's scroll. If you wish to re-enable the headroom's default behaviour, you can call unfreeze method.

• unfreeze method: When called, this method will resume headroom's default behaviour. Headroom will pin or unpin when the user scrolls the page. By default, Headroom is not freezed and calling this method before freeze will do nothing.

Headroom.js version lower than v0.10.0. This methods are integrated in Headroom.js for versions greater than v0.10.0.

Include headroom-freeze-unfreeze-methods.js after headroom.js file:

<script src="headroom.js"></script>
<script src="headroom-freeze-unfreeze-methods.js"></script>

Call the methods on an instance of Headroom:

// grab an element
var myElement = document.querySelector("header");
// construct an instance of Headroom, passing the element
var headroom  = new Headroom(myElement);
// initialise
headroom.init();

// freeze 
headroom.freeze();

// unfreeze
headroom.unfreeze();

$("#header").headroom();

// freeze method
$("#header").headroom('freeze');

// unfreeze method
$("#header").headroom('unfreeze');

There is a new property for the classes option:

{
  // ... other options
  classes: {
    // ... other classes
    frozen : 'headroom--frozen'
  }
}

Add some CSS to the new class headroom--frozen:

.headroom--frozen {
  opacity: 0.8;
}

• plain JS: https://andreivictor.github.io/headroom.js-freeze-unfreeze-methods/