[
    {
        "h2": "Accessibility Support"
    },
    {
        "p": "Out of the box, the Telerik and Kendo UI DropDownButton provides extensive accessibility support and enables users with disabilities to acquire complete control over its features."
    },
    {
        "p": "The DropDownButton 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": "Main Button Element"
    },
    {
        "p": "The following table summarizes the selectors and attributes supported by the main `button` element of the DropDownButton:"
    },
    {
        "table": {
            "headers": [
                "Selector",
                "Attribute",
                "Usage"
            ],
            "rows": [
                {
                    "Selector": "`.k-menu-button`",
                    "Attribute": "`role=button` or `nodeName=button`",
                    "Usage": "Omitted if the `<button>` DOM element is used."
                },
                {
                    "Selector": "",
                    "Attribute": "`aria-label`",
                    "Usage": "The attribute must be present when no text is initially visible in the button."
                },
                {
                    "Selector": "",
                    "Attribute": "`aria-expanded=true/false`",
                    "Usage": "Announces the state of the popup visibility."
                },
                {
                    "Selector": "",
                    "Attribute": "`aria-controls=.k-menu-group id`",
                    "Usage": "Points to the popup element. Builds a relationship between the button and the popup."
                },
                {
                    "Selector": "`.k-menu-button.k-disabled`",
                    "Attribute": "`aria-disabled=true`",
                    "Usage": "Rendered only when the button is disabled and the `disabled` attribute cannot be used. Applicable to the `<button>` or `<input type=\"button\">` elements."
                }
            ]
        }
    },
    {
        "h4": "Popup Menu Element"
    },
    {
        "p": "The following table summarizes the selectors and attributes supported by the popup `menu` element of the DropDownButton:"
    },
    {
        "table": {
            "headers": [
                "Selector",
                "Attribute",
                "Usage"
            ],
            "rows": [
                {
                    "Selector": "`.k-menu-group`",
                    "Attribute": "`role=list`",
                    "Usage": "Announces the `list` role of the popup."
                },
                {
                    "Selector": "`.k-menu-item`",
                    "Attribute": "`role=listitem`",
                    "Usage": "Announces the `listitem` role of the popup items."
                }
            ]
        }
    },
    {
        "h3": "Managing the Focus"
    },
    {
        "p": "The DropDownButton is a single tab stop component."
    },
    {
        "h3": "Keyboard Shortcuts"
    },
    {
        "p": "This section lists the keyboard shortcuts supported by the DropDownButton composite elements."
    },
    {
        "h4": "Main Button Element"
    },
    {
        "p": "The following table summarizes the keyboard combinations and input behavior supported by the main DropDownButton `button` element:"
    },
    {
        "table": {
            "headers": [
                "Shortcut",
                "Behavior"
            ],
            "rows": [
                {
                    "Shortcut": "`Alt` + `Down Arrow`",
                    "Behavior": "Opens the DropDownButton popup and moves the focus to its first `menuitem` element."
                },
                {
                    "Shortcut": "`Enter`",
                    "Behavior": "Opens the DropDownButton popup and moves the focus to its first `menuitem` element."
                },
                {
                    "Shortcut": "`Space`",
                    "Behavior": "Opens the DropDownButton popup and moves the focus to its first `menuitem` element."
                }
            ]
        }
    },
    {
        "h4": "Popup Menu Element"
    },
    {
        "p": "The following table summarizes the keyboard combinations and input behavior supported by the popup `menu` element of the DropDownButton:"
    },
    {
        "table": {
            "headers": [
                "Shortcut",
                "Behavior"
            ],
            "rows": [
                {
                    "Shortcut": "`Alt` + `Up Arrow`",
                    "Behavior": "Closes the popup and moves the focus back to the main `button` element."
                },
                {
                    "Shortcut": "`Esc`",
                    "Behavior": "Closes the popup and moves the focus back to the main button element."
                },
                {
                    "Shortcut": "`Down Arrow`",
                    "Behavior": "Moves the focus to the next `menuitem` element. If the focus is on the last menu item, moves the focus to the first menu item."
                },
                {
                    "Shortcut": "`Up Arrow`",
                    "Behavior": "Moves the focus to the previous `menuitem` element. If the focus is on the first menu item, moves the focus to the last menu item."
                },
                {
                    "Shortcut": "`Home`",
                    "Behavior": "Moves the focus to the first `menuitem` element."
                },
                {
                    "Shortcut": "`End`",
                    "Behavior": "Moves the focus to the last `menuitem` element."
                },
                {
                    "Shortcut": "`Enter`",
                    "Behavior": "Clicks (activates) the currently active `menuitem` element and closes the popup."
                },
                {
                    "Shortcut": "`Space`",
                    "Behavior": "Clicks (activates) the currently active `menuitem` element and closes the popup."
                }
            ]
        }
    },
    {
        "h3": "Testing"
    },
    {
        "p": "The DropDownButton 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 DropDownButton 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/disclosure/",
                    "title": "WAI-ARIA Authoring Practices: Disclosure Pattern"
                }
            },
            {
                "link": {
                    "source": "https://www.w3.org/WAI/ARIA/apg/patterns/menu-button/examples/menu-button-links/",
                    "title": "WAI-ARIA Authoring Practices: Navigation Menu Button"
                }
            }
        ]
    }
]