Readme: n-sliding-popup

Next-UI Sliding Popup.

Usage

Create a div that looks like this:

<div class="n-sliding-popup" data-n-component="n-sliding-popup" data-n-sliding-popup-position="bottom right">
</div>

You can also create an instance of this with the following:

new SlidingPopup('#some-el-which-is-a-sliding-popup');

Opening the Popup

If you have a SlidingPopup instance, simply call .open():

sp = new SlidingPopup('#some-el-which-is-a-sliding-popup');
sp.open();

If you do not, then you'll need to set the data-n-sliding-popup-visible
attribute manually:

el = document.querySelector('#some-el-which-is-a-sliding-popup');
el.setAttribute('data-n-sliding-popup-visible', 'true');

Closing the Popup

You can add a close button by making a sub-element with data-n-component="n-sliding-popup-close":

<div class="n-sliding-popup" data-n-component="n-sliding-popup" data-n-sliding-popup-position="bottom right">
  <button class="n-sliding-popup-close" data-n-component="n-sliding-popup-close">
    <span class="n-sliding-popup-close-label">Close</span>
  </button>
</div>

This will Just Work™ and close the popup on click. Again, the button must have
data-n-component="n-sliding-popup-close" for functionality. Be sure to add the
n-sliding-popup-close class for the CSS styles. n-sliding-popup-close-label
can be used to style text that is visible only to screen readers.

If you want your own button, then it should use SlidingPopup#close, for example:

sp = new SlidingPopup('#some-el-which-is-a-sliding-popup');
sp.close();

You can also simply remove the data-n-sliding-popup-visible attribute - but
this will not fire the additional event handlers described below…

Doing things on Close

There are 3 ways to add handlers for closing. You can simply add the old-school
onClose attribute to the element:

el = document.querySelector('#some-el-which-is-a-sliding-popup');
el.onClose = (event) => {
  event.detail.target === el;
  event.detail.instance instanceof SlidingPopup;
};

onClose can also be set on the SlidingPopup el:

sp = new SlidingPopup('#some-el-which-is-a-sliding-popup');
sp.onClose = (event) => {
  event.detail.instance === sp;
  event.detail.target === sp.el;
};

Of course the "proper" way to do this is with event listeners, like you would
normal DOM elements. Just listen for the "close" event on the main component:

el = document.querySelector('#some-el-which-is-a-sliding-popup');
el.addEventListener('close', (event) => {
  event.detail.target === el;
  event.detail.instance instanceof SlidingPopup;
});

Licence

This software is published by the Financial Times under the MIT licence.