Button

Basic Button

<Button onClick={() => alert("Hello, world!")}>Basic button</Button>

Submitting a form

Bifrost <Button> is type="button" by default since 4.0.

This differs from a native <button> (and bifrost < 4.0) which defaults to "submit" when type is omitted.

If you want to submit a <form>, you need to explicitly use <Button type="submit">

// if form has an `action` or `onSubmit` handler
<form>
  <Button type="submit">Submit the form</Button>
</form>

Link button

If the button navigates to a new URL on click, you should probably use a html link element <a> instead of <Button>.

You can style links as buttons using the .bf-button css class. This should work fine for <Link> components from react-router or next/link as well.

<a class="bf-button" href="/css/button#links-styled-as-a-button">
  Read more about links and buttons
</a>

Variants

Options for variant prop:

• 'basic': Default button variant. Same as not passing a variant.
• 'filled': A powerful call-to-action button. Preferably only used once per page.
• 'flat': A tertiary button for actions that don't need as much focus.

<Button>Basic</Button>
<Button variant='filled'>Filled</Button>
<Button variant='flat'>Flat</Button>

States

Options for 'state' prop:

• 'default': Default state. Same as not passing a state.
• 'inactive': Dimmed button. Use instead of disabled button.
• 'neutral': Neutral colors. Nice when you have multiple buttons and don't want to overload the UI.
• 'alert': Red colored button. Use for destructive actions. E.g deletion.
• 'inverted': Inverted colors for use on contrasting backgrounds.

<Button>Default</Button>
<Button state="inactive">Inactive</Button>
<Button state="neutral">Neutral</Button>
<Button state="alert">Alert</Button>
<Box background="inverted">
  <Button state="inverted">Inverted</Button>
</Box>

Combine state and variant

You can use any variant combined with any state.

Small size

Use the small prop for a smaller button size.

<Button small>Basic</Button>
<Button small variant='filled'>Filled</Button>
<Button small variant='flat'>Flat</Button>

Icon

You can place practically any JSX content inside a button, including <Icon>

<Button>
  <Icon icon={faGlobe} marginRight />
  Button with Icon
</Button>
<Button variant='filled'>
  Next
  <Icon icon={faArrowRight} marginLeft />
</Button>
<Button variant='flat'>
  <Icon icon={faCalendarPlus} marginRight />
  Add to calendar
</Button>

Icon-only button

If you have a button without text content, don't forget to add an aria-label to make it accessible for screen readers.

<Button aria-label="Go to front page">
  <Icon icon={faHome} />
</Button>

Pill (rounded)

The pill prop will round the corners.

If you want a circular button (for an icon-only button for instance) you can also apply noPadding.

<Button pill>
  Continue
  <Icon icon={faArrowRight} marginLeft />
</Button>
<Button pill variant="filled">
  <Icon icon={faCheck} marginRight />
  Submit
</Button>
<Button pill variant="filled" state="alert">
  <Icon icon={faTrashAlt} marginRight />
  Delete
</Button>
<Button pill variant="flat">
  <Icon icon={faTimes} marginRight />
  Close
</Button>
<Button pill noPadding aria-label="Continue">
  <Icon icon={faArrowRight} />
</Button>
<Button pill variant="filled" noPadding aria-label="Submit">
  <Icon icon={faCheck} />
</Button>
<Button pill variant="filled" state="alert" noPadding aria-label="Delete">
  <Icon icon={faTrashAlt} />
</Button>
<Button pill variant="flat" noPadding aria-label="Close">
  <Icon icon={faTimes} />
</Button>

Button.Group

Buttons can be used within a group, marked as selected with the active boolean prop.

<Button.Group>
  <Button active>
    <Icon icon={faHandRock} marginRight />
    Rock
  </Button>
  <Button>
    <Icon icon={faHandPaper} marginRight />
    Paper
  </Button>
  <Button>
    <Icon icon={faHandScissors} marginRight />
    Scissors
  </Button>
</Button.Group>

Button.Expand

Control <Button.Expand> state with the open prop, and use onClick just like any other button.

Useful for toggling expandable content.

<Button.Expand open={openState} onClick={() => setOpenState(!openState)}>
  Toggle
</Button.Expand>

Sandbox

import { useState } from "react";
import {
  faHandPaper,
  faHandRock,
  faHandScissors,
} from "@fortawesome/free-solid-svg-icons";
import Button from "@intility/bifrost-react/Button";
import Grid from "@intility/bifrost-react/Grid";
import Icon from "@intility/bifrost-react/Icon";

export default function () {
  const [expanded, setExpanded] = useState(false);
  const [active, setActive] = useState("rock");
  return (
    <div className="bf-padding">
      <Grid>
        <div className="bfl-inline">
          <Button>Basic</Button>
          <Button variant="filled">Filled</Button>
          <Button variant="flat">Flat</Button>
        </div>
        <div>
          <Button.Group>
            <Button
              active={active === "rock"}
              onClick={() => setActive("rock")}
            >
              <Icon icon={faHandRock} marginRight />
              Rock
            </Button>
            <Button
              active={active === "paper"}
              onClick={() => setActive("paper")}
            >
              <Icon icon={faHandPaper} marginRight />
              Paper
            </Button>
            <Button
              active={active === "scissors"}
              onClick={() => setActive("scissors")}
            >
              <Icon icon={faHandScissors} marginRight />
              Scissors
            </Button>
          </Button.Group>
        </div>
        <div>
          <Button.Expand onClick={() => setExpanded(!expanded)} open={expanded}>
            Toggle me
          </Button.Expand>
          {expanded && <p>My content</p>}
        </div>
      </Grid>
    </div>
  );
}