@progress/wct-a11y-spec/dist/design-system/ExpansionPanel.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 ExpansionPanel provides extensive accessibility support and enables users with disabilities to acquire complete control over its features."
    },
    {
        "p": "The ExpansionPanel 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."
    },
    {
        "h4": "ExpansionPanel Wrapping Element"
    },
    {
        "table": {
            "headers": [
                "Selector",
                "Attribute",
                "Usage"
            ],
            "rows": [
                {
                    "Selector": "`.k-expander-header`",
                    "Attribute": "`role=button`",
                    "Usage": "Sets the proper role for the ExpansionPanel component."
                },
                {
                    "Selector": "",
                    "Attribute": "`aria-controls=.k-expander-content-wrapper id`",
                    "Usage": "Points to the controlled element based on the given `id`."
                },
                {
                    "Selector": "",
                    "Attribute": "`aria-expanded=true/false`",
                    "Usage": "Indicates the expanded state of the ExpansionPanel."
                },
                {
                    "Selector": "",
                    "Attribute": "`tabindex=0`",
                    "Usage": "The element should be focusable."
                },
                {
                    "Selector": "`.k-disabled .k-expander-header`",
                    "Attribute": "`aria-disabled=true/false`",
                    "Usage": "The attribute is rendered only when the ExpansionPanel is disabled."
                }
            ]
        }
    },
    {
        "h3": "Managing the Focus"
    },
    {
        "p": "The ExpansionPanel is a single-tab-stop component. By default only its header is focusable and interactive. If there are focusable elements within the component's content, they remain in the page tab sequence."
    },
    {
        "h3": "Keyboard Shortcuts"
    },
    {
        "table": {
            "headers": [
                "Shortcut",
                "Behavior"
            ],
            "rows": [
                {
                    "Shortcut": "`Enter`",
                    "Behavior": "Expands and collapses the focused ExpansionPanel."
                },
                {
                    "Shortcut": "`Space`",
                    "Behavior": "Expands and collapses the focused ExpansionPanel."
                }
            ]
        }
    },
    {
        "h3": "Testing"
    },
    {
        "p": "The ExpansionPanel 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 ExpansionPanel 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/accordion/",
                    "title": "ARIA Practices: Accordion Pattern"
                }
            }
        ]
    }
]