@jsxtools/eslint-plugin-jsx-a11y/lib/rule/interactive-supports-focus.cjs

Static AST checker for accessibility rules on JSX elements for flat ESLint Config.

const ariaQuery = require('aria-query');
const jsxAstUtils = require('../util/module/jsx-ast-utils.cjs');
const schemas = require('../util/schemas.cjs');
const getElementType = require('../util/getElementType.cjs');
const isDisabledElement = require('../util/isDisabledElement.cjs');
const isHiddenFromScreenReader = require('../util/isHiddenFromScreenReader.cjs');
const isInteractiveElement = require('../util/isInteractiveElement.cjs');
const isInteractiveRole = require('../util/isInteractiveRole.cjs');
const isNonInteractiveElement = require('../util/isNonInteractiveElement.cjs');
const isNonInteractiveRole = require('../util/isNonInteractiveRole.cjs');
const isPresentationRole = require('../util/isPresentationRole.cjs');
const getTabIndex = require('../util/getTabIndex.cjs');

const schema = schemas.generateObjSchema({
  // TODO: convert to use iterFilter and iterFrom
  tabbable: schemas.enumArraySchema([...ariaQuery.roles.keys()].filter((name) => !ariaQuery.roles.get(name).abstract && ariaQuery.roles.get(name).superClass.some((klasses) => klasses.includes("widget"))))
});
const interactiveProps = [].concat(
  jsxAstUtils.eventHandlersByType.mouse,
  jsxAstUtils.eventHandlersByType.keyboard
);
const ruleOfInteractiveSupportsFocus = {
  meta: {
    docs: {
      url: "https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/tree/HEAD/docs/rules/interactive-supports-focus.md",
      description: "Enforce that elements with interactive handlers like `onClick` must be focusable."
    },
    schema: [schema]
  },
  create: (context) => {
    const elementType = getElementType(context);
    return {
      JSXOpeningElement: (node) => {
        const tabbable = context.options && context.options[0] && context.options[0].tabbable || [];
        const { attributes } = node;
        const type = elementType(node);
        const hasInteractiveProps = jsxAstUtils.hasAnyProp(attributes, interactiveProps);
        const hasTabindex = getTabIndex(jsxAstUtils.getProp(attributes, "tabIndex")) !== void 0;
        if (!ariaQuery.dom.has(type)) {
          return;
        }
        if (!hasInteractiveProps || isDisabledElement(attributes) || isHiddenFromScreenReader(type, attributes) || isPresentationRole(type, attributes)) {
          return;
        }
        if (hasInteractiveProps && isInteractiveRole(type, attributes) && !isInteractiveElement(type, attributes) && !isNonInteractiveElement(type, attributes) && !isNonInteractiveRole(type, attributes) && !hasTabindex) {
          const role = jsxAstUtils.getLiteralPropValue(jsxAstUtils.getProp(attributes, "role"));
          if (tabbable.includes(role)) {
            context.report({
              node,
              message: `Elements with the '${role}' interactive role must be tabbable.`
            });
          } else {
            context.report({
              node,
              message: `Elements with the '${role}' interactive role must be focusable.`
            });
          }
        }
      }
    };
  }
};

module.exports = ruleOfInteractiveSupportsFocus;