@progress/wct-a11y-spec
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Contains accessibility and keyboard navigation specification of Telerik and Kendo web components.
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Markdown
The Telerik UI for Blazor ColorPicker component is [WCAG 2.1 AAA](https://www.w3.org/TR/WCAG21/) and [Section 508](http://www.section508.gov/) compliant. The component also follows the [WAI-ARIA best practices](https://www.w3.org/WAI/ARIA/apg/) for implementing the keyboard navigation for its component role, and is tested against the popular screen readers.
The ColorPicker popup contains in itself ColorGradient, ColorPalette, a UI to switch between them, and a button to reset its value. All the containing elements must implement their own specification apart from the ColorGradient element where some changes are required.
| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| .k-colorpicker | `role=combobox` | The focusable element of the component should have role `combobox` (an input with popup). |
| | `aria-label` or `aria-labelledby` | The component needs an accessible name to be assigned to it. Must also include the currently selected value in the component. |
| | `aria-haspopup=dialog` | Indicates the component has a Dialog Popup. |
| | `aria-expanded` | Announces the state of the visibility of the popup. |
| | `aria-controls=.k-colorpicker-popup id` | Points to the popup element. Signifies that the `combobox` element controls the `dialog`. |
| | `aria-disabled=true` | Attribute is rendered only when the picker is disabled. |
| | `aria-invalid=true` | Attribute is rendered only when the picker is in form and announces the valid state of the component. |
| | `tabindex=0` | The element must be focusable. |
| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| .k-colorgradient | `role=none/undefined` | The ColorGradient element must have its role removed. |
| | `aria-label=undefined` | The ColorGradient element must have its `aria-label` attribute removed. |
| | `tabindex=-1/undefined` | The ColorGradient must be removed from the page tab sequence. |
The ColorPicker is compliant with the [Section 508](http://www.section508.gov/) requirements
The component has been extensively tested automatically with static code analyzers and manually with the most popular screen readers.
> Any Accessibility Issues could be reported in [Telerik Support System](https://www.telerik.com/account/support-center).
| Environment | Tool |
| ----------- | ---- |
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |