ember-a11y-refocus

What This Addon Does

This addon does two things:

it adds a message to the page to let the screen reader user know that the route has changed and regular page navigation can resume (it is similar to https://github.com/ember-a11y/a11y-announcer but does not use aria-live).
It moves the focus to that message for the screen reader user, effectively resetting focus in Ember apps (similar to how a native web page/site works).

Why This Addon is Needed

Single-Page Applications(SPAs) use pushState to allow portions of the page to be updated or replaced without a whole new page being rendered. While this was a positive gain for performance on the web, it has made an entire type of web app not accessible (usable) for folks who depend on assistive technology(such as screen-readers) to use the web. With the prolific rise of JavaScript frameworks as the tool of choice for building modern web applications, screen-reader users have become increasingly left out of many experiences of the modern web that have become necessary for everyday life, such as online banking, paying bills, and ordering products and services.

Since pushState does nothing to inform the browser--and, by extent, the screen reader--that new content is present, the screen-reader user has no way of knowing that new content exists, or that navigation to a new page was successful. Additionally, focus remains where it was, instead of being reset in a predictable fashion.

FAQs

What about async data loading?

Async data can be loaded as it normally would be. Since this addon does not use aria-live, it won't interfere with or compete with other loading states. This will only give the user with a screen reader a message that the route (URL) has changed, and place the focus where they expect it to be (reset to the top left of the page).

What if I want to put focus somewhere specific in the app flow?

Since this will run before other content, focus can be programmatically moved by the developer to go somewhere else. The message should still read out, and is findable by users with screen readers.

Compatibility

Ember.js v3.12 or above
Ember CLI v2.13 or above
Node.js v10 or above

Installation

ember install ember-a11y-refocus

Usage

Insert <NavigationNarrator/> into your application.hbs file, preferably inside of a <header> element.

Contributing

Contributions are welcome.

License

This project is licensed under the MIT License.

jrjohnson / ember-a11y-refocus Goto Github PK