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    @spectrum-web-components/radio
    TypeScript icon, indicating that this package has built-in type declarations

    0.11.6 • Public • Published

    Description

    <sp-radio> and <sp-radio-group> allow users to select a single option from a list of mutually exclusive options. All possible options are exposed up front for users to compare.

    <sp-radio-group> holds a list of <sp-radio> elements, and is responsible for deselecting radio buttons when a new one is selected, which in turn makes it responsible for keeping track of which one is selected. <sp-radio> is responsible for handling user interactions and for visually reflecting if it is the one that is checked or not.

    Usage

    See it on NPM! How big is this package in your project? Try it on webcomponents.dev

    yarn add @spectrum-web-components/radio
    

    Import the side effectful registration of <sp-radio> or <sp-radio-group> via:

    import '@spectrum-web-components/radio/sp-radio.js';
    import '@spectrum-web-components/radio/sp-radio-group.js';
    

    When looking to leverage the Radio or RadioGroup base classes as a type and/or for extension purposes, do so via:

    import {
        Radio,
        RadioGroup
    } from '@spectrum-web-components/radio';
    

    Sizes

    Small
    <sp-radio-group selected="first" name="example">
        <sp-radio value="first" size="s">Option 1</sp-radio>
        <sp-radio value="second" size="s">Option 2</sp-radio>
        <sp-radio value="third" size="s">Option 3</sp-radio>
        <sp-radio value="fourth" size="s">Option 4</sp-radio>
    </sp-radio-group>
    Medium
    <sp-radio-group selected="first" name="example">
        <sp-radio value="first" size="m">Option 1</sp-radio>
        <sp-radio value="second" size="m">Option 2</sp-radio>
        <sp-radio value="third" size="m">Option 3</sp-radio>
        <sp-radio value="fourth" size="m">Option 4</sp-radio>
    </sp-radio-group>
    Large
    <sp-radio-group selected="first" name="example">
        <sp-radio value="first" size="l">Option 1</sp-radio>
        <sp-radio value="second" size="l">Option 2</sp-radio>
        <sp-radio value="third" size="l">Option 3</sp-radio>
        <sp-radio value="fourth" size="l">Option 4</sp-radio>
    </sp-radio-group>
    Extra Large
    <sp-radio-group selected="first" name="example">
        <sp-radio value="first" size="xl">Option 1</sp-radio>
        <sp-radio value="second" size="xl">Option 2</sp-radio>
        <sp-radio value="third" size="xl">Option 3</sp-radio>
        <sp-radio value="fourth" size="xl">Option 4</sp-radio>
    </sp-radio-group>

    Standard radio buttons

    Standard radio buttons are the default style for radio buttons. They are optimal for application panels where all visual elements are monochrome in order to direct focus to the content.

    <div style="display: flex; justify-content: space-between;">
        <div style="display: flex; flex-direction: column;">
            <h4 class="spectrum-Heading--subtitle1">Default</h4>
            <sp-radio-group name="example" vertical>
                <sp-radio value="kittens">Kittens</sp-radio>
                <sp-radio value="puppies" checked>Puppies</sp-radio>
            </sp-radio-group>
        </div>
    
        <div style="display: flex; flex-direction: column;">
            <h4 class="spectrum-Heading--subtitle1">Invalid</h4>
            <sp-radio-group name="example" vertical>
                <sp-radio invalid value="kittens">Kittens</sp-radio>
                <sp-radio invalid value="puppies" checked>Puppies</sp-radio>
            </sp-radio-group>
        </div>
    
        <div style="display: flex; flex-direction: column;">
            <h4 class="spectrum-Heading--subtitle1">Disabled</h4>
            <sp-radio-group name="example" vertical>
                <sp-radio disabled value="kittens">Kittens</sp-radio>
                <sp-radio disabled value="puppies" checked>Puppies</sp-radio>
            </sp-radio-group>
        </div>
    </div>
    

    Emphasized radio buttons

    Emphasized radio buttons are a secondary style for radio buttons. The blue color provides a visual prominence that is optimal for forms, settings, etc. where the radio buttons need to be noticed.

    <div style="display: flex; justify-content: space-between;">
        <div style="display: flex; flex-direction: column;">
            <h4 class="spectrum-Heading--subtitle1">Default</h4>
            <sp-radio-group name="example" vertical>
                <sp-radio emphasized value="kittens">Kittens</sp-radio>
                <sp-radio emphasized value="puppies" checked>Puppies</sp-radio>
            </sp-radio-group>
        </div>
    
        <div style="display: flex; flex-direction: column;">
            <h4 class="spectrum-Heading--subtitle1">Invalid</h4>
            <sp-radio-group name="example" vertical>
                <sp-radio emphasized invalid value="kittens">Kittens</sp-radio>
                <sp-radio emphasized invalid value="puppies" checked>Puppies</sp-radio>
            </sp-radio-group>
        </div>
    
        <div style="display: flex; flex-direction: column;">
            <h4 class="spectrum-Heading--subtitle1">Disabled</h4>
            <sp-radio-group name="example" vertical>
                <sp-radio emphasized disabled value="kittens">Kittens</sp-radio>
                <sp-radio emphasized disabled value="puppies" checked>Puppies</sp-radio>
            </sp-radio-group>
        </div>
    </div>
    

    Label Below

    <sp-radio label-below>A label</sp-radio>

    Wrapping behavior

    <sp-radio label-below>
        Radio with an extraordinarily long label please don't do this but if you did
        it should wrap text when it gets longer than the container which contains
        the radio which has an unacceptably long label
    </sp-radio>

    Handling events

    Event handlers for clicks and other user actions can be registered on an <sp-radio> similar to a standard <input type="radio"> element.

    <sp-radio id="radio-example" onclick="spAlert(this, '<sp-radio> clicked!')">
        Web component
    </sp-radio>

    Help text

    Help text can be accessibly associated with an <sp-radio-group> element by using the help-text or negative-help-text slots. When using the negative-help-text slot, <sp-radio-group> will self manage the presence of this content based on the value of the invalid property on your <sp-radio-group> element. Content within the help-text slot will be show by default. When your <sp-radio-group> should receive help text based on state outside of the complexity of invalid or not, manage the content addressed to the help-text from above to ensure that it displays the right messaging and possesses the right variant.

    Self managed
    <sp-field-label for="self">
        What is your favorite ice cream flavor?
    </sp-field-label>
    <sp-radio-group
        is="self"
        onchange="
            this.invalid = this.selected === 'fourth';
        "
    >
        <sp-radio value="first">Vanilla</sp-radio>
        <sp-radio value="second">Chocolate</sp-radio>
        <sp-radio value="third">Strawberry</sp-radio>
        <sp-radio value="fourth">I don't like ice cream</sp-radio>
        <sp-help-text slot="help-text">Everyone likes ice cream.</sp-help-text>
        <sp-help-text slot="negative-help-text" icon>
            You can't not like ice cream.
        </sp-help-text>
    </sp-radio-group>
    Managed from above
    <sp-field-label for="managed">
        What is your favorite ice cream flavor?
    </sp-field-label>
    <sp-radio-group
        is="managed"
        onchange="
            const helpText = this.querySelector(`[slot='help-text']`);
            const isInvalid = this.selected === 'fourth';
            helpText.icon = isInvalid;
            helpText.textContent = isInvalid ? 'You can\'t not like ice cream.' : 'Everyone likes ice cream.';
            helpText.variant = isInvalid ? 'negative' : 'neutral';
        "
    >
        <sp-radio value="first">Vanilla</sp-radio>
        <sp-radio value="second">Chocolate</sp-radio>
        <sp-radio value="third">Strawberry</sp-radio>
        <sp-radio value="fourth">I don't like ice cream</sp-radio>
        <sp-help-text slot="help-text">Everyone likes ice cream.</sp-help-text>
    </sp-radio-group>

    Accessibility

    Radio buttons are accessible by default, rendered in HTML using the <input type="radio"> element. Tabbing into a group of radio buttons places the focus on the first radio button selected. If none of the radio buttons are selected, the focus is set on the first one in the group. Space selects the radio button in focus (if not already selected). Using the arrow keys moves focus and selection to the previous or next radio button in the group (last becomes first, and first becomes last). The new radio button in focus gets selected even if the previous one was not.

    Install

    npm i @spectrum-web-components/radio

    DownloadsWeekly Downloads

    724

    Version

    0.11.6

    License

    Apache-2.0

    Unpacked Size

    312 kB

    Total Files

    54

    Last publish

    Collaborators

    • hunterloftis
    • westbrook
    • benjamind
    • adixon
    • cuberoot
    • msdewey
    • najikahalsema