@aurodesignsystem/auro-button

Button

<auro-button> is a HTML custom element for the purpose being a clickable element to trigger a specific action.

Responsive support

<auro-button> is responsive by default. The button will assume 100% of the width of its container for views less than auro_breakpoint--sm.

Beyond that breakpoint <auro-button> will assume the width of the content or a min-width of 8.75rem, which ever is greater.

If the desired appearance of the <auro-button> is to be placed in the reverse direction of natural content, then the attributes of responsive and reverse are needed on the <auro-button> element.

Multi button support

When the UI requires the use of multiple buttons within the same space, with the use of the Auro Web Core Style Sheets, and the auro_containedButtons.

UI development browser support

For the most up to date information on UI development browser support

Install

$ npm i @aurodesignsystem/auro-button

Installing as a direct, dev or peer dependency is up to the user installing the package. If you are unsure as to what type of dependency you should use, consider reading this stack overflow answer.

Design Token CSS Custom Property dependency

The use of any Auro custom element has a dependency on the Auro Design Tokens.

CSS Custom Property fallbacks

CSS custom properties are not supported in older browsers. For this, fallback properties are pre-generated and included with the npm.

Any update to the Auro Design Tokens will be immediately reflected with browsers that support CSS custom properties, legacy browsers will require updated components with pre-generated fallback properties.

Define dependency in project component

Defining the component dependency within each component that is using the <auro-button> component.

import "@aurodesignsystem/auro-button";

Reference component in HTML

<auro-button>Primary</auro-button>
<auro-button variant="secondary">Secondary</auro-button>
<auro-button variant="tertiary">Tertiary</auro-button>

Install bundled assets from CDN

In cases where the project is not able to process JS assets, there are pre-processed assets available for use. See -- auro-button__bundled.js for modern browsers. Legacy browsers such as IE11 are no longer supported.

We recommend you load these bundles using differential serving so that the browser only loads the bundle correctly. To accomplish this, the script tag for the modern bundle should have type="module" and the script tag.

Bundle example code

<!-- **NOTE:** Be sure to replace `@latest` in the URL with the version of the asset you want. @latest is NOT aware of any MAJOR releases, use at your own risk. -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@alaskaairux/design-tokens@latest/dist/tokens/CSSCustomProperties.css" />
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@aurodesignsystem/webcorestylesheets@latest/dist/bundled/essentials.css" />
<script src="https://cdn.jsdelivr.net/npm/@aurodesignsystem/auro-button@latest/dist/auro-button__bundled.js" type="module"></script>

auro-button use cases

The auro-button element should be used in situations where users may:

• submit a form
• begin a new task
• trigger a new UI element to appear to the page
• specificy a new or next step in a process

API Code Examples

Default auro-button

<auro-button>Primary</auro-button>
<auro-button variant="secondary">Secondary</auro-button>
<auro-button variant="tertiary">Tertiary</auro-button>

Development

In order to develop against this project, if you are not part of the core team, you will be required to fork the project prior to submitting a pull request.

Please be sure to review the contribution guidelines for this project. Please make sure to pay special attention to the conventional commits section of the document.

Start development environment

Once the project has been cloned to your local resource and you have installed all the dependencies you will need to open a shell session to run the dev server.

$ npm run dev

Open localhost:8000

If running separate sessions is preferred, please run the following commands in individual terminal shells.

$ npm run build:watch

$ npm run serve

API generation

The custom element API file is generated in the build and committed back to the repo with a version change. If the API doc has changed without a version change, author's are to run npm run build:api to generate the doc and commit to version control.

Testing

Automated tests are required for every Auro component. See .\test\auro-button.test.js for the tests for this component. Run npm test to run the tests and check code coverage. Tests must pass and meet a certain coverage threshold to commit. See the testing documentation for more details.

Bundled assets

Bundled assets are only generated in the remote and not merged back to this repo. To review and/or test a bundled asset locally, run $ npm run bundler to generate assets.

Demo deployment

To deploy a demo version of the component for review, run npm run build:demo to create a ./build directory that can be pushed to any static server.