@jsxtools/eslint-plugin-jsx-a11y/lib/rule/heading-has-content.cjs

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

const schemas = require('../util/schemas.cjs');
const getElementType = require('../util/getElementType.cjs');
const hasAccessibleChild = require('../util/hasAccessibleChild.cjs');
const isHiddenFromScreenReader = require('../util/isHiddenFromScreenReader.cjs');

const errorMessage = "Headings must have content and the content must be accessible by a screen reader.";
const headings = [
  "h1",
  "h2",
  "h3",
  "h4",
  "h5",
  "h6"
];
const schema = schemas.generateObjSchema({ components: schemas.arraySchema });
const ruleOfHeadingHasContent = {
  meta: {
    docs: {
      url: "https://github.com/jsx-eslint/eslint-plugin-jsx-a11y/tree/HEAD/docs/rules/heading-has-content.md",
      description: "Enforce heading (`h1`, `h2`, etc) elements contain accessible content."
    },
    schema: [schema]
  },
  create: (context) => {
    const elementType = getElementType(context);
    return {
      JSXOpeningElement: (node) => {
        const options = context.options[0] || {};
        const componentOptions = options.components || [];
        const typeCheck = headings.concat(componentOptions);
        const nodeType = elementType(node);
        if (typeCheck.indexOf(nodeType) === -1) {
          return;
        }
        if (hasAccessibleChild(node.parent, elementType)) {
          return;
        }
        if (isHiddenFromScreenReader(nodeType, node.attributes)) {
          return;
        }
        context.report({
          node,
          message: errorMessage
        });
      }
    };
  }
};

module.exports = ruleOfHeadingHasContent;