@material/checkbox
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14.0.0 • Public • Published

Selection controls: checkboxes

Selection controls allow the user to select options.

Use checkboxes to:

  • Select one or more options from a list
  • Present a list containing sub-selections
  • Turn an item on or off in a desktop environment

Checkbox hero example for menu options

Contents

Using checkboxes

Checkboxes allow the user to select one or more items from a set. Checkboxes can be used to turn an option on or off.

Installing checkboxes

npm install @material/checkbox

Styles

@use "@material/checkbox";
@use "@material/form-field";

@include checkbox.core-styles;
@include form-field.core-styles;

Note: The form field styles are only required when the checkbox is used with the form field.

JavaScript instantiation

The checkbox will work without JavaScript, but you can enhance it with a ripple interaction effect by instantiating MDCCheckbox on the mdc-checkbox element. To activate the ripple effect upon interacting with the label, you must also instantiate MDCFormField on the mdc-form-field element and set the MDCCheckbox instance as its input.

import {MDCFormField} from '@material/form-field';
import {MDCCheckbox} from '@material/checkbox';

const checkbox = new MDCCheckbox(document.querySelector('.mdc-checkbox'));
const formField = new MDCFormField(document.querySelector('.mdc-form-field'));
formField.input = checkbox;

See Importing the JS component for more information on how to import JavaScript.

Making checkboxes accessible

Material Design spec advises that touch targets should be at least 48px x 48px. To meet this requirement, add the mdc-checkbox--touch class to your checkbox as follows:

<div class="mdc-touch-target-wrapper">
  <div class="mdc-checkbox mdc-checkbox--touch">
    <input type="checkbox"
           class="mdc-checkbox__native-control"
           id="checkbox-1"/>
    <div class="mdc-checkbox__background">
      <svg class="mdc-checkbox__checkmark"
           viewBox="0 0 24 24">
        <path class="mdc-checkbox__checkmark-path"
              fill="none"
              d="M1.73,12.91 8.1,19.28 22.79,4.59"/>
      </svg>
      <div class="mdc-checkbox__mixedmark"></div>
    </div>
    <div class="mdc-checkbox__ripple"></div>
    <div class="mdc-checkbox__focus-ring"></div>
  </div>
</div>

Note that the outer mdc-touch-target-wrapper element is only necessary if you want to avoid potentially overlapping touch targets on adjacent elements (due to collapsing margins).

The mdc-checkbox__focus-ring element ensures that a focus indicator is displayed in high contrast mode around the active/focused checkbox.

Checkboxes

We recommend using MDC Checkbox with MDC Form Field for enhancements such as label alignment, label activation of the ripple interaction effect, and RTL-awareness.

Checkbox example

<div class="mdc-form-field">
  <div class="mdc-checkbox">
    <input type="checkbox"
           class="mdc-checkbox__native-control"
           id="checkbox-1"/>
    <div class="mdc-checkbox__background">
      <svg class="mdc-checkbox__checkmark"
           viewBox="0 0 24 24">
        <path class="mdc-checkbox__checkmark-path"
              fill="none"
              d="M1.73,12.91 8.1,19.28 22.79,4.59"/>
      </svg>
      <div class="mdc-checkbox__mixedmark"></div>
    </div>
    <div class="mdc-checkbox__ripple"></div>
    <div class="mdc-checkbox__focus-ring"></div>
  </div>
  <label for="checkbox-1">Checkbox 1</label>
</div>

Note: If you are using IE, you need to include a closing </path> tag if you wish to avoid console warnings.

Checkbox states

Checkboxes can be selected, unselected, or indeterminate. Checkboxes have enabled, disabled, hover, focused, and pressed states.

Checkbox states in a table. Columns are enabled, disabled, hover, focused, pressed. Rows are selected, unselected, or indeterminite

Other variants

Disabled checkboxes

Note that mdc-checkbox--disabled is necessary on the root element of CSS-only checkboxes to prevent hover states from activating. Checkboxes that use the JavaScript component do not need this class; a disabled attribute on the <input> element is sufficient.

<div class="mdc-checkbox mdc-checkbox--disabled">
  <input type="checkbox"
         id="basic-disabled-checkbox"
         class="mdc-checkbox__native-control"
         disabled />
  <div class="mdc-checkbox__background">
    <svg class="mdc-checkbox__checkmark"
         viewBox="0 0 24 24">
      <path class="mdc-checkbox__checkmark-path"
            fill="none"
            d="M1.73,12.91 8.1,19.28 22.79,4.59"/>
    </svg>
    <div class="mdc-checkbox__mixedmark"></div>
  </div>
  <div class="mdc-checkbox__ripple"></div>
  <div class="mdc-checkbox__focus-ring"></div>
</div>
<label for="basic-disabled-checkbox" id="basic-disabled-checkbox-label">This is my disabled checkbox</label>

Indeterminate checkboxes

Note that data-indeterminate="true" is necessary on the input element for initial render, or in a CSS-only mode. Checkboxes that use the Javascript component can modify the indeterminate property at runtime.

<div class="mdc-checkbox">
  <input type="checkbox"
         id="basic-indeterminate-checkbox"
         class="mdc-checkbox__native-control"
         data-indeterminate="true"/>
  <div class="mdc-checkbox__background">
    <svg class="mdc-checkbox__checkmark"
         viewBox="0 0 24 24">
      <path class="mdc-checkbox__checkmark-path"
            fill="none"
            d="M1.73,12.91 8.1,19.28 22.79,4.59"/>
    </svg>
    <div class="mdc-checkbox__mixedmark"></div>
  </div>
  <div class="mdc-checkbox__ripple"></div>
  <div class="mdc-checkbox__focus-ring"></div>
</div>
<label for="basic-indeterminate-checkbox" id="basic-indeterminate-checkbox-label">This is my indeterminate checkbox</label>

API

Sass mixins

MDC Checkbox uses MDC Theme's secondary color by default for "marked" states (i.e., checked or indeterminate).

Mixin Description
container-colors($unmarked-stroke-color, $unmarked-fill-color, $marked-stroke-color, $marked-fill-color, $generate-keyframes) Sets stroke & fill colors for both marked and unmarked state of enabled checkbox. Set $generate-keyframes to false to prevent the mixin from generating @keyframes.
disabled-container-colors($unmarked-stroke-color, $unmarked-fill-color, $marked-stroke-color, $marked-fill-color) Sets stroke & fill colors for both marked and unmarked state of disabled checkbox.
ink-color($color) Sets the ink color of the checked and indeterminate icons for an enabled checkbox
disabled-ink-color($color) Sets the ink color of the checked and indeterminate icons for a disabled checkbox
focus-indicator-color($color) Sets the color of the focus indicator (ripple) when checkbox is selected or is in indeterminate state.
ripple-size($ripple-size) Sets the ripple size of the checkbox.
density($density-scale) Sets density scale for checkbox, Supported density scales are -3, -2, -1, and 0 (default).

The ripple effect for the Checkbox component is styled using MDC Ripple mixins.

MDCCheckbox properties and methods

Property Name Type Description
checked boolean Setter/getter for the checkbox's checked state
indeterminate boolean Setter/getter for the checkbox's indeterminate state
disabled boolean Setter/getter for the checkbox's disabled state
value string Setter/getter for the checkbox's

Usage within web frameworks

If you are using a JavaScript framework, such as React or Angular, you can create a Checkbox for your framework. Depending on your needs, you can use the Simple Approach: Wrapping MDC Web Vanilla Components, or the Advanced Approach: Using Foundations and Adapters. Please follow the instructions here.

MDCCheckboxAdapter

Method Signature Description
addClass(className: string) => void Adds a class to the root element.
removeClass(className: string) => void Removes a class from the root element.
forceLayout() => void Force-trigger a layout on the root element. This is needed to restart animations correctly. If you find that you do not need to do this, you can simply make it a no-op.
isAttachedToDOM() => boolean Returns true if the component is currently attached to the DOM, false otherwise.
isIndeterminate() => boolean Returns true if the component is in the indeterminate state.
isChecked() => boolean Returns true if the component is checked.
hasNativeControl() => boolean Returns true if the input is present in the component.
setNativeControlDisabled(disabled: boolean) => void Sets the input to disabled.
setNativeControlAttr(attr: string, value: string) => void Sets an HTML attribute to the given value on the native input element.
removeNativeControlAttr(attr: string) => void Removes an attribute from the native input element.

MDCCheckboxFoundation

Method Signature Description
setDisabled(disabled: boolean) => void Updates the disabled property on the underlying input. Does nothing when the underlying input is not present.
handleAnimationEnd() => void animationend event handler that should be applied to the root element.
handleChange() => void change event handler that should be applied to the checkbox element.

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Install

npm i @material/checkbox

Weekly Downloads

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Version

14.0.0

License

MIT

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Total Files

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