@progress/wct-a11y-spec/dist/design-system/RadioButton.json

Contains accessibility and keyboard navigation specification of Telerik and Kendo web components.

[
    {
        "h2": "Accessibility Support"
    },
    {
        "p": "Out of the box, the Telerik and Kendo UI RadioButton provides extensive accessibility support and enables users with disabilities to acquire complete control over its features."
    },
    {
        "p": "The RadioButton is compliant with the [Web Content Accessibility Guidelines (WCAG) 2.2 standards](https://www.w3.org/TR/WCAG22/) and [Section 508](http://www.section508.gov/) requirements, follows the [Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA)](https://www.w3.org/WAI/ARIA/apg/) best practices for implementing the [keyboard navigation](#keyboard-navigation) for its `component` role, provides options for [managing its focus](#managing-the-focus) and is tested against the most popular [screen readers](#screen-readers)."
    },
    {
        "h3": "WAI-ARIA"
    },
    {
        "p": "This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any."
    },
    {
        "table": {
            "headers": [
                "Selector",
                "Attribute",
                "Usage"
            ],
            "rows": [
                {
                    "Selector": "`.k-radio`",
                    "Attribute": "`type=radio`",
                    "Usage": "Announces the radio type of the input."
                },
                {
                    "Selector": "",
                    "Attribute": "`label for` or `aria-label` or `aria-labelledby`",
                    "Usage": "The input requires an accessible name that will be assigned to it."
                },
                {
                    "Selector": "",
                    "Attribute": "`aria-required=true`",
                    "Usage": "The attribute is rendered only when the RadioButton is in a `form` HTML element and announces the required state of the component."
                },
                {
                    "Selector": "",
                    "Attribute": "`aria-describedby=.k-form-hint id/.k-form-error id`",
                    "Usage": "Points to the hint for the input, or if the input is invalid, to the error message. This attribute should only be present when a hint is set or when the input is invalid."
                },
                {
                    "Selector": "",
                    "Attribute": "`checked=checked`",
                    "Usage": "Announces the checked state of the radio button."
                },
                {
                    "Selector": "",
                    "Attribute": "`disabled=disabled` or `aria-disabled=true`",
                    "Usage": "The attribute is rendered only when the radio input is disabled."
                },
                {
                    "Selector": "`.k-invalid,.ng-invalid`",
                    "Attribute": "`aria-invalid=true`",
                    "Usage": "The attribute is rendered only when the radio button is in a form and announces the valid state of the component."
                }
            ]
        }
    },
    {
        "h3": "Keyboard Shortcuts"
    },
    {
        "p": "The RadioButton does not support keyboard navigation. The behavior of the component is handled through the default browser behavior for radio buttons."
    },
    {
        "h3": "Testing"
    },
    {
        "p": "The RadioButton has been extensively tested automatically with [axe-core](https://github.com/dequelabs/axe-core) and manually with the most popular screen readers."
    },
    {
        "h3": "Screen Readers"
    },
    {
        "p": "The RadioButton has been tested with the following screen readers and browsers combinations:"
    },
    {
        "table": {
            "headers": [
                "Environment",
                "Tool"
            ],
            "rows": [
                [
                    "Firefox",
                    "NVDA"
                ],
                [
                    "Chrome",
                    "JAWS"
                ],
                [
                    "Microsoft Edge",
                    "JAWS"
                ]
            ]
        }
    },
    {
        "h3": "Resources"
    },
    {
        "ul": [
            {
                "link": {
                    "source": "https://www.w3.org/WAI/ARIA/apg/patterns/radio/",
                    "title": "WAI-ARIA Authoring Practices: Radio Group Pattern"
                }
            }
        ]
    }
]