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isNonInteractiveElement.js 5.3 KiB

3 лет назад
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  1. 'use strict';
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
  6. var _ariaQuery = require('aria-query');
  7. var _axobjectQuery = require('axobject-query');
  8. var _arrayIncludes = require('array-includes');
  9. var _arrayIncludes2 = _interopRequireDefault(_arrayIncludes);
  10. var _attributesComparator = require('./attributesComparator');
  11. var _attributesComparator2 = _interopRequireDefault(_attributesComparator);
  12. function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  13. function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
  14. var roleKeys = [].concat(_toConsumableArray(_ariaQuery.roles.keys()));
  15. var elementRoleEntries = [].concat(_toConsumableArray(_ariaQuery.elementRoles));
  16. var nonInteractiveRoles = new Set(roleKeys.filter(function (name) {
  17. var role = _ariaQuery.roles.get(name);
  18. return !role.abstract && !role.superClass.some(function (classes) {
  19. return (0, _arrayIncludes2.default)(classes, 'widget');
  20. });
  21. }));
  22. var interactiveRoles = new Set([].concat(roleKeys,
  23. // 'toolbar' does not descend from widget, but it does support
  24. // aria-activedescendant, thus in practice we treat it as a widget.
  25. 'toolbar').filter(function (name) {
  26. var role = _ariaQuery.roles.get(name);
  27. return !role.abstract && role.superClass.some(function (classes) {
  28. return (0, _arrayIncludes2.default)(classes, 'widget');
  29. });
  30. }));
  31. var nonInteractiveElementRoleSchemas = elementRoleEntries.reduce(function (accumulator, _ref) {
  32. var _ref2 = _slicedToArray(_ref, 2),
  33. elementSchema = _ref2[0],
  34. roleSet = _ref2[1];
  35. if ([].concat(_toConsumableArray(roleSet)).every(function (role) {
  36. return nonInteractiveRoles.has(role);
  37. })) {
  38. accumulator.push(elementSchema);
  39. }
  40. return accumulator;
  41. }, []);
  42. var interactiveElementRoleSchemas = elementRoleEntries.reduce(function (accumulator, _ref3) {
  43. var _ref4 = _slicedToArray(_ref3, 2),
  44. elementSchema = _ref4[0],
  45. roleSet = _ref4[1];
  46. if ([].concat(_toConsumableArray(roleSet)).some(function (role) {
  47. return interactiveRoles.has(role);
  48. })) {
  49. accumulator.push(elementSchema);
  50. }
  51. return accumulator;
  52. }, []);
  53. var nonInteractiveAXObjects = new Set([].concat(_toConsumableArray(_axobjectQuery.AXObjects.keys())).filter(function (name) {
  54. return (0, _arrayIncludes2.default)(['window', 'structure'], _axobjectQuery.AXObjects.get(name).type);
  55. }));
  56. var nonInteractiveElementAXObjectSchemas = [].concat(_toConsumableArray(_axobjectQuery.elementAXObjects)).reduce(function (accumulator, _ref5) {
  57. var _ref6 = _slicedToArray(_ref5, 2),
  58. elementSchema = _ref6[0],
  59. AXObjectSet = _ref6[1];
  60. if ([].concat(_toConsumableArray(AXObjectSet)).every(function (role) {
  61. return nonInteractiveAXObjects.has(role);
  62. })) {
  63. accumulator.push(elementSchema);
  64. }
  65. return accumulator;
  66. }, []);
  67. function checkIsNonInteractiveElement(tagName, attributes) {
  68. function elementSchemaMatcher(elementSchema) {
  69. return tagName === elementSchema.name && (0, _attributesComparator2.default)(elementSchema.attributes, attributes);
  70. }
  71. // Check in elementRoles for inherent non-interactive role associations for
  72. // this element.
  73. var isInherentNonInteractiveElement = nonInteractiveElementRoleSchemas.some(elementSchemaMatcher);
  74. if (isInherentNonInteractiveElement) {
  75. return true;
  76. }
  77. // Check in elementRoles for inherent interactive role associations for
  78. // this element.
  79. var isInherentInteractiveElement = interactiveElementRoleSchemas.some(elementSchemaMatcher);
  80. if (isInherentInteractiveElement) {
  81. return false;
  82. }
  83. // Check in elementAXObjects for AX Tree associations for this element.
  84. var isNonInteractiveAXElement = nonInteractiveElementAXObjectSchemas.some(elementSchemaMatcher);
  85. if (isNonInteractiveAXElement) {
  86. return true;
  87. }
  88. return false;
  89. }
  90. /**
  91. * Returns boolean indicating whether the given element is a non-interactive
  92. * element. If the element has either a non-interactive role assigned or it
  93. * is an element with an inherently non-interactive role, then this utility
  94. * returns true. Elements that lack either an explicitly assigned role or
  95. * an inherent role are not considered. For those, this utility returns false
  96. * because a positive determination of interactiveness cannot be determined.
  97. */
  98. var isNonInteractiveElement = function isNonInteractiveElement(tagName, attributes) {
  99. // Do not test higher level JSX components, as we do not know what
  100. // low-level DOM element this maps to.
  101. if (!_ariaQuery.dom.has(tagName)) {
  102. return false;
  103. }
  104. return checkIsNonInteractiveElement(tagName, attributes);
  105. };
  106. exports.default = isNonInteractiveElement;