accessible-description.js 2.3 KB

12345678910111213141516171819202122232425262728293031323334353637383940
  1. "use strict";
  2. exports.__esModule = true;
  3. exports.computeAccessibleDescription = computeAccessibleDescription;
  4. var _accessibleNameAndDescription = require("./accessible-name-and-description");
  5. var _util = require("./util");
  6. function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) { symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); } keys.push.apply(keys, symbols); } return keys; }
  7. function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
  8. function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
  9. /**
  10. * @param root
  11. * @param options
  12. * @returns
  13. */
  14. function computeAccessibleDescription(root) {
  15. var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
  16. var description = (0, _util.queryIdRefs)(root, "aria-describedby").map(function (element) {
  17. return (0, _accessibleNameAndDescription.computeTextAlternative)(element, _objectSpread(_objectSpread({}, options), {}, {
  18. compute: "description"
  19. }));
  20. }).join(" "); // TODO: Technically we need to make sure that node wasn't used for the accessible name
  21. // This causes `description_1.0_combobox-focusable-manual` to fail
  22. //
  23. // https://www.w3.org/TR/html-aam-1.0/#accessible-name-and-description-computation
  24. // says for so many elements to use the `title` that we assume all elements are considered
  25. if (description === "") {
  26. var title = root.getAttribute("title");
  27. description = title === null ? "" : title;
  28. }
  29. return description;
  30. }
  31. //# sourceMappingURL=accessible-description.js.map