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Button

Buttons allow users to take actions.

Basic Usage

To implement the Button component, you need to import it first:

import { Button } from '@react-ui-org/react-ui';

And use it:

<Button label="My button" />

See API for all available options.

General Guidelines

  • Use short yet comprehensible labels to make buttons fit small screens.

  • Since buttons are there to take actions, use a verb to make it obvious what your buttons do.

  • Don't overwhelm your UI with too many high-emphasis actions. There should always be one but chances are that having more of them is not necessary.

Priorities

There are three visual priorities of buttons to choose from, from highest to lowest:

  1. filled
  2. outline
  3. flat

All priorities come in supported component colors.

Filled

The default, high-emphasis priority should be used for primary actions of your app. Use it sparingly but remember there should always be one on a screen.

<Button label="Primary" />
<Button label="Secondary" color="secondary" />
<Button label="Selected" color="selected" />
<Button label="Success" color="success" />
<Button label="Warning" color="warning" />
<Button label="Danger" color="danger" />
<Button label="Help" color="help" />
<Button label="Info" color="info" />
<Button label="Note" color="note" />
<docoff-placeholder dark inline>
  <Button label="Light" color="light" />
</docoff-placeholder>
<Button label="Dark" color="dark" />

Default, unconfigured button comes in medium size, filled visual priority, and primary color variant.

Outline

Medium-emphasis buttons. They are designed to contain actions that are important but not primary in your app.

<Button priority="outline" label="Primary" />
<Button priority="outline" label="Secondary" color="secondary" />
<Button priority="outline" label="Selected" color="selected" />
<Button priority="outline" label="Success" color="success" />
<Button priority="outline" label="Warning" color="warning" />
<Button priority="outline" label="Danger" color="danger" />
<Button priority="outline" label="Help" color="help" />
<Button priority="outline" label="Info" color="info" />
<Button priority="outline" label="Note" color="note" />
<docoff-placeholder dark inline>
  <Button priority="outline" label="Light" color="light" />
</docoff-placeholder>
<Button priority="outline" label="Dark" color="dark" />

Flat

Flat buttons are designed for less pronounced actions to help maintain focus on the content.

<Button priority="flat" label="Primary" />
<Button priority="flat" label="Secondary" color="secondary" />
<Button priority="flat" label="Selected" color="selected" />
<Button priority="flat" label="Success" color="success" />
<Button priority="flat" label="Warning" color="warning" />
<Button priority="flat" label="Danger" color="danger" />
<Button priority="flat" label="Help" color="help" />
<Button priority="flat" label="Info" color="info" />
<Button priority="flat" label="Note" color="note" />
<docoff-placeholder dark inline>
  <Button priority="flat" label="Light" color="light" />
</docoff-placeholder>
<Button priority="flat" label="Dark" color="dark" />

Sizes

Aside from the default (medium) size, two additional sizes are available: small and large.

<Button label="Small" size="small" />
<Button label="Medium" />
<Button label="Large" size="large" />

Block buttons span the full width of a parent:

<Button label="Block button" block />

Buttons with Icons

To improve clarity or to draw attention to the action, icons can be added before or after the button's label.

👉 Please note there are no icons pre-packed in React UI. Visit Icons to see how to include them.

<Button
  label="Icon before label"
  beforeLabel={<rui-icon icon="star" />}
/>
<Button
  label="Icon after label"
  afterLabel={<rui-icon icon="star" />}
/>

Icon Buttons

For clear and simple actions, buttons can visually consist just of an icon. Label remains mandatory to keep the button accessible.

  <Button
    label="Icon button"
    labelVisibility="none"
    beforeLabel={<rui-icon icon="pencil" />}
  />

Icon buttons can optionally enhance on a breakpoint of your choice and display label once you know there is enough room for it.

📐 Try resizing your browser to see how label visibility changes.

  <Button
    label="Label visible from sm up"
    labelVisibility="sm"
    beforeLabel={<rui-icon icon="pencil" />}
  />
  <Button
    label="Label visible from md up"
    labelVisibility="md"
    beforeLabel={<rui-icon icon="pencil" />}
  />
  <Button
    label="Label visible from lg up"
    labelVisibility="lg"
    beforeLabel={<rui-icon icon="pencil" />}
  />
  <Button
    label="Label visible from xl up"
    labelVisibility="xl"
    beforeLabel={<rui-icon icon="pencil" />}
  />
  <Button
    label="Label visible from x2l up"
    labelVisibility="x2l"
    beforeLabel={<rui-icon icon="pencil" />}
  />
  <Button
    label="Label visible from x3l up"
    labelVisibility="x3l"
    beforeLabel={<rui-icon icon="pencil" />}
  />

Buttons with Badges

A Badge can be added to buttons to provide additional information or to draw user's attention.

  <Button
    label="Badge before"
    beforeLabel={<Badge label={'3'} priority="outline" color="light" />}
  />
  <Button
    label="Badge before, on top"
    startCorner={<Badge label={'3'} />}
  />
  <Button
    label="Badge after, on top"
    endCorner={<Badge label={'3'} />}
    priority="outline"
  />
  <Button
    label="Badge after"
    afterLabel={<Badge label="new" color="warning" />}
    priority="outline"
  />

Icon Buttons with a Badge

Badges play nicely with icon buttons, too:

<Button
  label="Icon button with badge"
  labelVisibility="none"
  priority="outline"
  beforeLabel={<rui-icon icon="warning-sign" />}
  startCorner={<Badge label={'3'} color="warning" />}
/>
<Button
  label="Icon button with badge"
  labelVisibility="md"
  priority="outline"
  beforeLabel={<rui-icon icon="warning-sign" />}
  startCorner={<Badge label={'3'} color="danger" />}
/>

States

Disabled State

Disabled state makes the action unavailable.

<Button label="Disabled filled button" disabled />
<Button label="Disabled outline button" priority="outline" disabled />
<Button label="Disabled flat button" priority="flat" disabled />

Feedback State

When user's action triggers an asynchronous process on background, the button's feedback state (not to be mistaken with feedback colors) can be indicated by showing an icon. The icon replaces button's label while retaining original dimensions of the button. Buttons in feedback state are automatically disabled to prevent unwanted interaction.

Filled buttons in feedback state:

<Button
  label="Success"
  color="success"
  feedbackIcon={<rui-icon icon="success" />}
/>
<Button
  label="Success"
  labelVisibility="none"
  color="success"
  feedbackIcon={<rui-icon icon="success" />}
  endCorner={<Badge color="danger" label={'3'} />}
/>
<docoff-placeholder dark inline>
  <Button
    label="Light"
    color="light"
    feedbackIcon={<rui-icon icon="success" />}
  />
</docoff-placeholder>
<Button
  label="Dark"
  color="dark"
  feedbackIcon={<rui-icon icon="success" />}
/>
<Button
  label="Primary"
  feedbackIcon={(
    <span className="d-inline-flex animation-spin-counterclockwise">
      <rui-icon icon="loading" />
    </span>
  )}
/>

Outline buttons in feedback state:

<Button
  label="Success"
  priority="outline"
  color="success"
  feedbackIcon={<rui-icon icon="success" />}
/>
<Button
  label="Success"
  labelVisibility="none"
  priority="outline"
  color="success"
  feedbackIcon={<rui-icon icon="success" />}
  endCorner={<Badge color="danger" label={'3'} />}
/>
<docoff-placeholder dark inline>
  <Button
    label="Light"
    priority="outline"
    color="light"
    feedbackIcon={<rui-icon icon="success" />}
  />
</docoff-placeholder>
<Button
  label="Dark"
  priority="outline"
  color="dark"
  feedbackIcon={<rui-icon icon="success" />}
/>
<Button
  label="Primary"
  priority="outline"
  feedbackIcon={(
    <span className="d-inline-flex animation-spin-counterclockwise">
      <rui-icon icon="loading" />
    </span>
  )}
/>

Flat buttons in feedback state:

<Button
  label="Success"
  priority="flat"
  color="success"
  feedbackIcon={<rui-icon icon="success" />}
/>
<Button
  label="Success"
  labelVisibility="none"
  priority="flat"
  color="success"
  feedbackIcon={<rui-icon icon="success" />}
  endCorner={<Badge color="danger" label={'3'} />}
/>
<docoff-placeholder dark inline>
  <Button
    label="Light"
    priority="flat"
    color="light"
    feedbackIcon={<rui-icon icon="success" />}
  />
</docoff-placeholder>
<Button
  label="Dark"
  priority="flat"
  color="dark"
  feedbackIcon={<rui-icon icon="success" />}
/>
<Button
  label="Primary"
  priority="flat"
  feedbackIcon={(
    <span className="d-inline-flex animation-spin-counterclockwise">
      <rui-icon icon="loading" />
    </span>
  )}
/>

👉 Visit the CSS Helpers section to see how the icon animation is made.

Forwarding HTML Attributes

In addition to the options below in the component's API section, you can specify React synthetic events or any HTML attribute you like. All attributes that don't interfere with the API are forwarded to the native HTML <button>. This enables making the component interactive and helps to improve its accessibility.

👉 Refer to the MDN reference for the full list of supported attributes of the button element.

Forwarding ref

If you provide ref, it is forwarded to the native HTML <button> element.

API

Theming

Common Theming Options

Custom Property Description
--rui-Button__font-weight Font weight
--rui-Button__text-transform Text transform, e.g. uppercase or small-caps
--rui-Button__letter-spacing Spacing between letters
--rui-Button__border-width Border width
--rui-Button__border-radius Corner radius

Theming Priorities and Color Variants

It's possible to adjust the theme for specific priority, color variant, and state. Naming convention looks as follows:

--rui-Button--<PRIORITY>--<COLOR>--<INTERACTION STATE>__<PROPERTY>

Where:

  • <PRIORITY> is one of filled, outline, or flat (see Priorities and API),
  • <COLOR> is one of supported component colors (see color variants of each priority and API),
  • <INTERACTION STATE> is one of default, hover, active, or disabled (the last one being optional),
  • <PROPERTY> is one of:
    • color, border-color, background, or box-shadow for the filled priority,
    • color, border-color, or background for the outline priority,
    • color or background for the flat priority.

Theming Sizes

Available sizes can be adjusted as follows:

--rui-Button--<SIZE>__<PROPERTY>

Where:

  • <SIZE> is one of small, medium, or large (see Sizes and API)
  • <PROPERTY> is one of height, padding-x, padding-y, or font-size

👉 Button sizes are linked to box field sizes sizes so they align nicely when placed in row.

Example Theme

<style type="text/css">
  {`
  .example {
    margin: 0;
  }

  .example > * {
    margin: 4px;
  }

  .example--themed-buttons {
    --rui-Button__font-weight: bold;
    --rui-Button__letter-spacing: 0.05em;
    --rui-Button__text-transform: uppercase;
    --rui-Button__border-radius: 0;
    --rui-Button--filled--primary--default__box-shadow:
      0.1em 0.1em 0.5em rgba(0, 0, 0, 0.3);
    --rui-Button--medium__height: 3rem;
    --rui-Button--medium__padding-x: 1.25rem;
    --rui-Button--medium__padding-y: 0.25rem;
  }
  `}
</style>
<Button label="Default filled button" />
<Button label="Default outline button" priority="outline" />
<div className="example example--themed-buttons">
  <Button label="Themed filled button" />
  <Button label="Themed outline button" priority="outline" />
</div>

Theming Disabled State

The disabled state offers a bit more of design flexibility compared to other interaction states. Firstly, there are a few common options for this state:

Custom Property Description
--rui-Button--disabled__opacity Opacity of disabled buttons
--rui-Button--disabled__cursor Cursor to show on hovering disabled buttons

Secondly, it can be further adjusted using priority and color variant specific options for the disabled state:

--rui-Button--<PRIORITY>--<COLOR>--disabled__<PROPERTY>

Undefined theming options are inherited from the default interaction state.

Example:

<style type="text/css">
  {`
  .example {
    margin: 0;
  }

  .example > * {
    margin: 4px;
  }

  .example--themed-disabled-buttons {
    --rui-Button__border-radius: 0;
    --rui-Button--disabled__opacity: 0.4;
    --rui-Button--disabled__cursor: default;
    --rui-Button--filled--primary--disabled__color: slate;
    --rui-Button--filled--primary--disabled__border-color: silver;
    --rui-Button--filled--primary--disabled__background: silver;
    --rui-Button--filled--success--disabled__color: slate;
    --rui-Button--filled--success--disabled__border-color: silver;
    --rui-Button--filled--success--disabled__background: silver;
    --rui-Button--outline--primary--disabled__color: slate;
    --rui-Button--outline--primary--disabled__border-color: silver;
  }
  `}
</style>
<Button
  label="Default filled primary button, disabled"
  disabled
/>
<Button
  label="Default filled success button, disabled"
  color="success"
  disabled
/>
<Button
  label="Default outline primary button, disabled"
  priority="outline"
  disabled
/>
<div className="example example--themed-disabled-buttons">
  <Button
    label="Themed filled primary button, disabled"
    disabled
  />
  <Button
    label="Themed filled success button, disabled"
    color="success"
    disabled
  />
  <Button
    label="Themed outline primary button, disabled"
    priority="outline"
    disabled
  />
</div>

Theming Feedback State

Similarly to disabled state, opacity and cursor can be set for buttons in feedback state.

Custom Property Description
--rui-Button--feedback__opacity Opacity of buttons in feedback state
--rui-Button--feedback__cursor Cursor to show on hovering buttons in feedback state