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28 lines
1.2 KiB
TypeScript
28 lines
1.2 KiB
TypeScript
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/**
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* Accessibility (a11y) functions, types, helpers
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* @see https://www.w3.org/WAI/
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* @see https://www.w3.org/TR/wai-aria-1.1/
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* @see https://www.w3.org/TR/svg-aam-1.0/
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*
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*/
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import { D3Element } from './mermaidAPI';
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/**
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* Add role and aria-roledescription to the svg element
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*
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* @param svg - d3 object that contains the SVG HTML element
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* @param diagramType - diagram name for to the aria-roledescription
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*/
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export declare function setA11yDiagramInfo(svg: D3Element, diagramType: string | null | undefined): void;
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/**
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* Add an accessible title and/or description element to a chart.
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* The title is usually not displayed and the description is never displayed.
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*
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* The following charts display their title as a visual and accessibility element: gantt
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*
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* @param svg - d3 node to insert the a11y title and desc info
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* @param a11yTitle - a11y title. null and undefined are meaningful: means to skip it
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* @param a11yDesc - a11y description. null and undefined are meaningful: means to skip it
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* @param baseId - id used to construct the a11y title and description id
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*/
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export declare function addSVGa11yTitleDescription(svg: D3Element, a11yTitle: string | null | undefined, a11yDesc: string | null | undefined, baseId: string): void;
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