Assistive technology support

All viewer components support ARIA (Accessible Rich Internet Applications) roles and attributes to improve integration with assistive technologies such as screen readers.

The top-level viewer element has role region and aria-label attribute set by default to the name of the viewer. You can control the label with the Container.LABEL localization symbol.

The main view has role application. A brief description of the main view is provided in aria-roledescription, with the value defined by the ROLE_DESCRIPTION localization symbol of the corresponding main view component. Navigation hints for keyboard users are provided using aria-describedby, the text for the usage hint comes from the USAGE_HINT localization symbol. If an asset has a label defined in the UserData field, the aria-label attribute is set with the value of such label.

Hot spots, regions, and image maps have the role button and descriptive text set with aria-label attribute, with the value of the hot spot or image map label. When the user puts a focus on hot spots or image maps, navigation hints for keyboard users are provided using aria-describedby, with the text for the usage hint coming from the USAGE_HINT localization symbol.

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