@progress/wct-a11y-spec
Version:
Contains accessibility and keyboard navigation specification of Telerik and Kendo web components.
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[
{
"h2": "Accessibility Support"
},
{
"p": "Out of the box, the Telerik and Kendo UI NumericTextBox provides extensive accessibility support and enables users with disabilities to acquire complete control over its features."
},
{
"p": "The NumericTextBox 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-input-inner`",
"Attribute": "`role=spinbutton`",
"Usage": "Announces the spin button capabilities of the NumericTextBox."
},
{
"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 NumericTextBox 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-valuemnow`",
"Usage": "Announces the value for the component."
},
{
"Selector": "",
"Attribute": "`aria-valuemin`",
"Usage": "Announces the minimum value allowed for the component."
},
{
"Selector": "",
"Attribute": "`aria-valuemax`",
"Usage": "Announces the maximum value allowed for the component."
},
{
"Selector": "",
"Attribute": "`aria-invalid=true`",
"Usage": "The attribute is rendered only when the NumericTextBox is in a form and announces the valid state of the component."
},
{
"Selector": "`.k-disabled .k-input-inner`",
"Attribute": "`disabled=disabled` or `aria-disabled=true`",
"Usage": "The attribute is rendered only when the NumericTextBox is disabled."
},
{
"Selector": "`.k-spin-button>.k-button`",
"Attribute": "`role=button` or `nodeName=button`",
"Usage": "Announces the spin button capabilities of the NumericTextBox."
},
{
"Selector": "",
"Attribute": "`aria-label`",
"Usage": "The button element must have discernible text."
},
{
"Selector": "`.k-numerictextbox.k-disabled .k-spin-button>.k-button`",
"Attribute": "`disabled` or `aria-disabled`",
"Usage": "Attribute is rendered only when the picker is disabled."
}
]
}
},
{
"h3": "Managing the Focus"
},
{
"p": "The NumericTextBox provides a standard focusable input."
},
{
"h3": "Keyboard Shortcuts"
},
{
"p": "The MaskedTextBox supports the default input cursor navigation with the `Left Arrow` and `Right Arrow` keys."
},
{
"table": {
"headers": [
"Shortcut",
"Behavior"
],
"rows": [
{
"Shortcut": "`Up Arrow`",
"Behavior": "Increases the value of the focused NumericTextBox with the step."
},
{
"Shortcut": "`Down Arrow`",
"Behavior": "Decreases the value of the focused NumericTextBox with the step."
}
]
}
},
{
"h3": "Testing"
},
{
"p": "The NumericTextBox 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 NumericTextBox 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/spinbutton/",
"title": "WAI-ARIA Authoring Practices: Spinbutton Pattern"
}
}
]
}
]