@progress/wct-a11y-spec/dist/design-system/RangeSlider.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 RangeSlider provides extensive accessibility support and enables users with disabilities to acquire complete control over its features."
    },
    {
        "p": "The RangeSlider 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."
    },
    {
        "link": {
            "title": "Slider accessibility specification",
            "source": "{{slider_a11y_link}}"
        }
    },
    {
        "p": "The two focusable elements of the RangeSlider must implement the specification for the **Slider** component. Here is just one clarification for the use of `aria-valuetext` attribute:"
    },
    {
        "table": {
            "headers": [
                "Selector",
                "Attribute",
                "Usage"
            ],
            "rows": [
                {
                    "Selector": "`.k-draghandle`",
                    "Attribute": "`aria-valuetext`",
                    "Usage": "Specifies the text that would be announced based on the currently selected values in both handle elements (e.g. `aria-valuetext=\"10 - 50\"`)."
                }
            ]
        }
    },
    {
        "h3": "Managing the Focus"
    },
    {
        "p": "Both slider handles are focusable through Tab Key, and the below shortcuts are applicable to them."
    },
    {
        "h3": "Keyboard Shortcuts"
    },
    {
        "table": {
            "headers": [
                "Shortcut",
                "Behavior"
            ],
            "rows": [
                {
                    "Shortcut": "`Arrow Down or Arrow Left`",
                    "Behavior": "Decreases value by small step."
                },
                {
                    "Shortcut": "`Arrow Up or Arrow Right`",
                    "Behavior": "Increases value by small step."
                },
                {
                    "Shortcut": "`Home`",
                    "Behavior": "Sets value to the Min value."
                },
                {
                    "Shortcut": "`End`",
                    "Behavior": "Sets value to the Max value."
                },
                {
                    "Shortcut": "`Page up`",
                    "Behavior": "Increases value by large step."
                },
                {
                    "Shortcut": "`Page down`",
                    "Behavior": "Decreases value by large step."
                }
            ]
        }
    },
    {
        "h3": "Testing"
    },
    {
        "p": "The RangeSlider 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 RangeSlider 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/TR/wai-aria-1.2/#slider",
                    "title": "WAI-ARIA specification for Slider"
                }
            },
            {
                "link": {
                    "source": "https://www.w3.org/WAI/ARIA/apg/patterns/slider/",
                    "title": "ARIA Authoring Practices: Slider Pattern"
                }
            },
            {
                "link": {
                    "source": "https://www.w3.org/WAI/ARIA/apg/patterns/slider-multithumb/",
                    "title": "ARIA Authoring Practices: Multi-Thumb Slider Pattern"
                }
            }
        ]
    }
]