@progress/wct-a11y-spec

[ { "h2": "Accessibility Support" }, { "p": "Out of the box, the Telerik and Kendo UI TimePicker provides extensive accessibility support and enables users with disabilities to acquire complete control over its features." }, { "p": "The TimePicker 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": "TimePicker Wrapping Element" }, { "table": { "headers": [ "Selector", "Attribute", "Usage" ], "rows": [ { "Selector": "`.k-input-inner`", "Attribute": "`role=combobox`", "Usage": "The input element should follow the `combobox` specification." }, { "Selector": "", "Attribute": "`label for` or `aria-label` or `aria-labelledby`", "Usage": "The input needs an accessible name to be assigned to it." }, { "Selector": "", "Attribute": "`aria-required=true`", "Usage": "The attribute is rendered only when the TimePicker 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": "`aria-expanded=true/false`", "Usage": "Announces whether the Popup is visible or not." }, { "Selector": "", "Attribute": "`aria-haspopup=dialog`", "Usage": "Indicates the component has a Dialog Popup." }, { "Selector": "", "Attribute": "`aria-controls=.k-animation-container id`", "Usage": " Points to the popup element. Signifies that the `combobox` element controls the `dialog` popup." }, { "Selector": "", "Attribute": "`readonly` or `aria-readonly`", "Usage": "Attribute is rendered only when the DatePicker is readonly." }, { "Selector": "`.k-invalid .k-input-inner,.ng-invalid .k-input-inner`", "Attribute": "`aria-invalid=true`", "Usage": "Attribute is rendered only when the picker is in form and announces the valid state of the component." }, { "Selector": "`.k-disabled .k-input-inner`", "Attribute": "`disabled=disabled` or `aria-disabled=true`", "Usage": "Attribute is rendered only when the DatePicker is disabled." }, { "Selector": "`.k-input-button`", "Attribute": "`role=button` or `nodeName=button`", "Usage": "The element must either be a `<button>` element or must have `role=button` assigned." }, { "Selector": "", "Attribute": "`aria-label`", "Usage": "The button needs an accessible name to be assigned to it." }, { "Selector": "", "Attribute": "`tabindex=-1`", "Usage": "Button element must not be focusable." }, { "Selector": "`.k-timepicker.k-disabled .k-button`", "Attribute": "`disabled` or `aria-disabled`", "Usage": "Attribute is rendered only when the picker is disabled." } ] } }, { "h4": "List Elements on the Popup" }, { "table": { "headers": [ "Selector", "Attribute", "Usage" ], "rows": [ { "Selector": "`.k-time-list`", "Attribute": "`role=listbox`", "Usage": "The timelist elements must have `listbox` role assigned." }, { "Selector": "", "Attribute": "`aria-label` or `aria-labelledby`", "Usage": "The listbox needs an accessible name to be assigned to it." }, { "Selector": "`.k-reset`", "Attribute": "`role=none/presentation`", "Usage": "The k-rest `<ul>` element semantic meaning must be removed from the accessibility tree." }, { "Selector": "`.k-item`", "Attribute": "`role=option`", "Usage": "The available options in the listbox must be marked as such." }, { "Selector": "", "Attribute": "`aria-selected=true/false`", "Usage": "Selected option must have its `aria-selected` attribute set to `true`." } ] } }, { "h3": "Managing the Focus" }, { "p": "Initial focus is on the selected time." }, { "p": "The time dropdown tab sequence is: **hours** part, **minutes** part, **seconds** part, **Cancel** button, **Set** button, **Now** button (activated on Enter). The tab key is trapped in the popup." }, { "p": "Enhanced Mouse UX - when mouse is over a timelist - it gets the focus." }, { "h3": "Keyboard Shortcuts" }, { "h4": "Actions applied to the input:" }, { "table": { "headers": [ "Shortcut", "Behavior" ], "rows": [ { "Shortcut": "`Esc`", "Behavior": "Closes the popup" }, { "Shortcut": "`Alt/Opt(Mac) + Down`", "Behavior": "Opens the popup" }, { "Shortcut": "`Alt/Opt(Mac) + Up`", "Behavior": "Closes the popup" }, { "Shortcut": "`Up`", "Behavior": "Increases the value of the time segment that is highlighted." }, { "Shortcut": "`Down`", "Behavior": "Decreases the value of the time segment that is highlighted." }, { "Shortcut": "`Left`", "Behavior": "Moves to previous time segment in the input." }, { "Shortcut": "`Right`", "Behavior": "Moves to next time segment in the input." }, { "Shortcut": "`Backspace`", "Behavior": "Deletes value of the time segment." } ] } }, { "h4": "Actions applied to the popup" }, { "table": { "headers": [ "Shortcut", "Behavior" ], "rows": [ { "Shortcut": "`Esc`", "Behavior": "Closes the popup" }, { "Shortcut": "`Shift + Tab` or `Left`", "Behavior": "Focuses previous carousel." }, { "Shortcut": "`Tab` or `Right`", "Behavior": "Focuses next carousel." }, { "Shortcut": "`Down`", "Behavior": "Selects next value in the carousel." }, { "Shortcut": "`Up`", "Behavior": "Selects previous value in the carousel." } ] } }, { "h3": "Testing" }, { "p": "The TimePicker 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 TimePicker 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": { "title": "WAI-ARIA specification for combobox", "source": "https://www.w3.org/TR/wai-aria-1.2/#combobox" } }, { "link": { "title": "WAI-ARIA specification for listbox", "source": "https://www.w3.org/TR/wai-aria-1.2/#listbox" } } ] } ]