d2-ui/node_modules-react-15/eslint-plugin-jsx-a11y/lib/rules/aria-proptypes.js

d2-ui

/**
 * @fileoverview Enforce ARIA state and property values are valid.
 * @author Ethan Cohen
 */
'use strict';

// ----------------------------------------------------------------------------
// Rule Definition
// ----------------------------------------------------------------------------

var _ARIA = require('../util/attributes/ARIA');

var _ARIA2 = _interopRequireDefault(_ARIA);

var _getAttributeValue = require('../util/getAttributeValue');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var errorMessage = function errorMessage(name, type, permittedValues) {
  switch (type) {
    case 'tristate':
      return 'The value for ' + name + ' must be a boolean or the string "mixed".';
    case 'token':
      return 'The value for ' + name + ' must be a single token from the following: ' + permittedValues + '.';
    case 'tokenlist':
      return 'The value for ' + name + ' must be a list of one or more tokens from the following: ' + permittedValues + '.';
    case 'boolean':
    case 'string':
    case 'integer':
    case 'number':
    default:
      return 'The value for ' + name + ' must be a ' + type + '.';
  }
};

var validityCheck = function validityCheck(value, expectedType, permittedValues) {
  switch (expectedType) {
    case 'boolean':
      return typeof value === 'boolean';
    case 'string':
      return typeof value === 'string';
    case 'tristate':
      return typeof value === 'boolean' || value == 'mixed';
    case 'integer':
    case 'number':
      // Booleans resolve to 0/1 values so hard check that it's not first.
      return typeof value !== 'boolean' && isNaN(Number(value)) === false;
    case 'token':
      return typeof value === 'string' && permittedValues.indexOf(value.toLowerCase()) > -1;
    case 'tokenlist':
      return typeof value === 'string' && value.split(' ').every(function (token) {
        return permittedValues.indexOf(token.toLowerCase()) > -1;
      });
    default:
      return false;
  }
};

module.exports = function (context) {
  return {
    JSXAttribute: function JSXAttribute(attribute) {
      var name = attribute.name.name;
      var normalizedName = name.toUpperCase();

      // Not a valid aria-* state or property.
      if (normalizedName.indexOf('ARIA-') !== 0 || _ARIA2.default[normalizedName] === undefined) {
        return;
      }

      var value = (0, _getAttributeValue.getLiteralAttributeValue)(attribute);

      // We only want to check literal prop values, so just pass if it's null.
      if (value === null) {
        return;
      }

      // These are the attributes of the property/state to check against.
      var attributes = _ARIA2.default[normalizedName];
      var permittedType = attributes.type;
      var allowUndefined = attributes.allowUndefined || false;
      var permittedValues = attributes.values || [];

      var isValid = validityCheck(value, permittedType, permittedValues) || allowUndefined && value === undefined;

      if (isValid) {
        return;
      }

      context.report({
        node: attribute,
        message: errorMessage(name, permittedType, permittedValues)
      });
    }
  };
};

module.exports.schema = [{ type: 'object' }];