node.js 13 KB

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  1. "use strict";
  2. var __extends = (this && this.__extends) || (function () {
  3. var extendStatics = function (d, b) {
  4. extendStatics = Object.setPrototypeOf ||
  5. ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
  6. function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
  7. return extendStatics(d, b);
  8. };
  9. return function (d, b) {
  10. if (typeof b !== "function" && b !== null)
  11. throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
  12. extendStatics(d, b);
  13. function __() { this.constructor = d; }
  14. d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  15. };
  16. })();
  17. var __assign = (this && this.__assign) || function () {
  18. __assign = Object.assign || function(t) {
  19. for (var s, i = 1, n = arguments.length; i < n; i++) {
  20. s = arguments[i];
  21. for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
  22. t[p] = s[p];
  23. }
  24. return t;
  25. };
  26. return __assign.apply(this, arguments);
  27. };
  28. Object.defineProperty(exports, "__esModule", { value: true });
  29. exports.cloneNode = exports.hasChildren = exports.isDocument = exports.isDirective = exports.isComment = exports.isText = exports.isCDATA = exports.isTag = exports.Element = exports.Document = exports.NodeWithChildren = exports.ProcessingInstruction = exports.Comment = exports.Text = exports.DataNode = exports.Node = void 0;
  30. var domelementtype_1 = require("domelementtype");
  31. var nodeTypes = new Map([
  32. [domelementtype_1.ElementType.Tag, 1],
  33. [domelementtype_1.ElementType.Script, 1],
  34. [domelementtype_1.ElementType.Style, 1],
  35. [domelementtype_1.ElementType.Directive, 1],
  36. [domelementtype_1.ElementType.Text, 3],
  37. [domelementtype_1.ElementType.CDATA, 4],
  38. [domelementtype_1.ElementType.Comment, 8],
  39. [domelementtype_1.ElementType.Root, 9],
  40. ]);
  41. /**
  42. * This object will be used as the prototype for Nodes when creating a
  43. * DOM-Level-1-compliant structure.
  44. */
  45. var Node = /** @class */ (function () {
  46. /**
  47. *
  48. * @param type The type of the node.
  49. */
  50. function Node(type) {
  51. this.type = type;
  52. /** Parent of the node */
  53. this.parent = null;
  54. /** Previous sibling */
  55. this.prev = null;
  56. /** Next sibling */
  57. this.next = null;
  58. /** The start index of the node. Requires `withStartIndices` on the handler to be `true. */
  59. this.startIndex = null;
  60. /** The end index of the node. Requires `withEndIndices` on the handler to be `true. */
  61. this.endIndex = null;
  62. }
  63. Object.defineProperty(Node.prototype, "nodeType", {
  64. // Read-only aliases
  65. get: function () {
  66. var _a;
  67. return (_a = nodeTypes.get(this.type)) !== null && _a !== void 0 ? _a : 1;
  68. },
  69. enumerable: false,
  70. configurable: true
  71. });
  72. Object.defineProperty(Node.prototype, "parentNode", {
  73. // Read-write aliases for properties
  74. get: function () {
  75. return this.parent;
  76. },
  77. set: function (parent) {
  78. this.parent = parent;
  79. },
  80. enumerable: false,
  81. configurable: true
  82. });
  83. Object.defineProperty(Node.prototype, "previousSibling", {
  84. get: function () {
  85. return this.prev;
  86. },
  87. set: function (prev) {
  88. this.prev = prev;
  89. },
  90. enumerable: false,
  91. configurable: true
  92. });
  93. Object.defineProperty(Node.prototype, "nextSibling", {
  94. get: function () {
  95. return this.next;
  96. },
  97. set: function (next) {
  98. this.next = next;
  99. },
  100. enumerable: false,
  101. configurable: true
  102. });
  103. /**
  104. * Clone this node, and optionally its children.
  105. *
  106. * @param recursive Clone child nodes as well.
  107. * @returns A clone of the node.
  108. */
  109. Node.prototype.cloneNode = function (recursive) {
  110. if (recursive === void 0) { recursive = false; }
  111. return cloneNode(this, recursive);
  112. };
  113. return Node;
  114. }());
  115. exports.Node = Node;
  116. /**
  117. * A node that contains some data.
  118. */
  119. var DataNode = /** @class */ (function (_super) {
  120. __extends(DataNode, _super);
  121. /**
  122. * @param type The type of the node
  123. * @param data The content of the data node
  124. */
  125. function DataNode(type, data) {
  126. var _this = _super.call(this, type) || this;
  127. _this.data = data;
  128. return _this;
  129. }
  130. Object.defineProperty(DataNode.prototype, "nodeValue", {
  131. get: function () {
  132. return this.data;
  133. },
  134. set: function (data) {
  135. this.data = data;
  136. },
  137. enumerable: false,
  138. configurable: true
  139. });
  140. return DataNode;
  141. }(Node));
  142. exports.DataNode = DataNode;
  143. /**
  144. * Text within the document.
  145. */
  146. var Text = /** @class */ (function (_super) {
  147. __extends(Text, _super);
  148. function Text(data) {
  149. return _super.call(this, domelementtype_1.ElementType.Text, data) || this;
  150. }
  151. return Text;
  152. }(DataNode));
  153. exports.Text = Text;
  154. /**
  155. * Comments within the document.
  156. */
  157. var Comment = /** @class */ (function (_super) {
  158. __extends(Comment, _super);
  159. function Comment(data) {
  160. return _super.call(this, domelementtype_1.ElementType.Comment, data) || this;
  161. }
  162. return Comment;
  163. }(DataNode));
  164. exports.Comment = Comment;
  165. /**
  166. * Processing instructions, including doc types.
  167. */
  168. var ProcessingInstruction = /** @class */ (function (_super) {
  169. __extends(ProcessingInstruction, _super);
  170. function ProcessingInstruction(name, data) {
  171. var _this = _super.call(this, domelementtype_1.ElementType.Directive, data) || this;
  172. _this.name = name;
  173. return _this;
  174. }
  175. return ProcessingInstruction;
  176. }(DataNode));
  177. exports.ProcessingInstruction = ProcessingInstruction;
  178. /**
  179. * A `Node` that can have children.
  180. */
  181. var NodeWithChildren = /** @class */ (function (_super) {
  182. __extends(NodeWithChildren, _super);
  183. /**
  184. * @param type Type of the node.
  185. * @param children Children of the node. Only certain node types can have children.
  186. */
  187. function NodeWithChildren(type, children) {
  188. var _this = _super.call(this, type) || this;
  189. _this.children = children;
  190. return _this;
  191. }
  192. Object.defineProperty(NodeWithChildren.prototype, "firstChild", {
  193. // Aliases
  194. get: function () {
  195. var _a;
  196. return (_a = this.children[0]) !== null && _a !== void 0 ? _a : null;
  197. },
  198. enumerable: false,
  199. configurable: true
  200. });
  201. Object.defineProperty(NodeWithChildren.prototype, "lastChild", {
  202. get: function () {
  203. return this.children.length > 0
  204. ? this.children[this.children.length - 1]
  205. : null;
  206. },
  207. enumerable: false,
  208. configurable: true
  209. });
  210. Object.defineProperty(NodeWithChildren.prototype, "childNodes", {
  211. get: function () {
  212. return this.children;
  213. },
  214. set: function (children) {
  215. this.children = children;
  216. },
  217. enumerable: false,
  218. configurable: true
  219. });
  220. return NodeWithChildren;
  221. }(Node));
  222. exports.NodeWithChildren = NodeWithChildren;
  223. /**
  224. * The root node of the document.
  225. */
  226. var Document = /** @class */ (function (_super) {
  227. __extends(Document, _super);
  228. function Document(children) {
  229. return _super.call(this, domelementtype_1.ElementType.Root, children) || this;
  230. }
  231. return Document;
  232. }(NodeWithChildren));
  233. exports.Document = Document;
  234. /**
  235. * An element within the DOM.
  236. */
  237. var Element = /** @class */ (function (_super) {
  238. __extends(Element, _super);
  239. /**
  240. * @param name Name of the tag, eg. `div`, `span`.
  241. * @param attribs Object mapping attribute names to attribute values.
  242. * @param children Children of the node.
  243. */
  244. function Element(name, attribs, children, type) {
  245. if (children === void 0) { children = []; }
  246. if (type === void 0) { type = name === "script"
  247. ? domelementtype_1.ElementType.Script
  248. : name === "style"
  249. ? domelementtype_1.ElementType.Style
  250. : domelementtype_1.ElementType.Tag; }
  251. var _this = _super.call(this, type, children) || this;
  252. _this.name = name;
  253. _this.attribs = attribs;
  254. return _this;
  255. }
  256. Object.defineProperty(Element.prototype, "tagName", {
  257. // DOM Level 1 aliases
  258. get: function () {
  259. return this.name;
  260. },
  261. set: function (name) {
  262. this.name = name;
  263. },
  264. enumerable: false,
  265. configurable: true
  266. });
  267. Object.defineProperty(Element.prototype, "attributes", {
  268. get: function () {
  269. var _this = this;
  270. return Object.keys(this.attribs).map(function (name) {
  271. var _a, _b;
  272. return ({
  273. name: name,
  274. value: _this.attribs[name],
  275. namespace: (_a = _this["x-attribsNamespace"]) === null || _a === void 0 ? void 0 : _a[name],
  276. prefix: (_b = _this["x-attribsPrefix"]) === null || _b === void 0 ? void 0 : _b[name],
  277. });
  278. });
  279. },
  280. enumerable: false,
  281. configurable: true
  282. });
  283. return Element;
  284. }(NodeWithChildren));
  285. exports.Element = Element;
  286. /**
  287. * @param node Node to check.
  288. * @returns `true` if the node is a `Element`, `false` otherwise.
  289. */
  290. function isTag(node) {
  291. return (0, domelementtype_1.isTag)(node);
  292. }
  293. exports.isTag = isTag;
  294. /**
  295. * @param node Node to check.
  296. * @returns `true` if the node has the type `CDATA`, `false` otherwise.
  297. */
  298. function isCDATA(node) {
  299. return node.type === domelementtype_1.ElementType.CDATA;
  300. }
  301. exports.isCDATA = isCDATA;
  302. /**
  303. * @param node Node to check.
  304. * @returns `true` if the node has the type `Text`, `false` otherwise.
  305. */
  306. function isText(node) {
  307. return node.type === domelementtype_1.ElementType.Text;
  308. }
  309. exports.isText = isText;
  310. /**
  311. * @param node Node to check.
  312. * @returns `true` if the node has the type `Comment`, `false` otherwise.
  313. */
  314. function isComment(node) {
  315. return node.type === domelementtype_1.ElementType.Comment;
  316. }
  317. exports.isComment = isComment;
  318. /**
  319. * @param node Node to check.
  320. * @returns `true` if the node has the type `ProcessingInstruction`, `false` otherwise.
  321. */
  322. function isDirective(node) {
  323. return node.type === domelementtype_1.ElementType.Directive;
  324. }
  325. exports.isDirective = isDirective;
  326. /**
  327. * @param node Node to check.
  328. * @returns `true` if the node has the type `ProcessingInstruction`, `false` otherwise.
  329. */
  330. function isDocument(node) {
  331. return node.type === domelementtype_1.ElementType.Root;
  332. }
  333. exports.isDocument = isDocument;
  334. /**
  335. * @param node Node to check.
  336. * @returns `true` if the node is a `NodeWithChildren` (has children), `false` otherwise.
  337. */
  338. function hasChildren(node) {
  339. return Object.prototype.hasOwnProperty.call(node, "children");
  340. }
  341. exports.hasChildren = hasChildren;
  342. /**
  343. * Clone a node, and optionally its children.
  344. *
  345. * @param recursive Clone child nodes as well.
  346. * @returns A clone of the node.
  347. */
  348. function cloneNode(node, recursive) {
  349. if (recursive === void 0) { recursive = false; }
  350. var result;
  351. if (isText(node)) {
  352. result = new Text(node.data);
  353. }
  354. else if (isComment(node)) {
  355. result = new Comment(node.data);
  356. }
  357. else if (isTag(node)) {
  358. var children = recursive ? cloneChildren(node.children) : [];
  359. var clone_1 = new Element(node.name, __assign({}, node.attribs), children);
  360. children.forEach(function (child) { return (child.parent = clone_1); });
  361. if (node["x-attribsNamespace"]) {
  362. clone_1["x-attribsNamespace"] = __assign({}, node["x-attribsNamespace"]);
  363. }
  364. if (node["x-attribsPrefix"]) {
  365. clone_1["x-attribsPrefix"] = __assign({}, node["x-attribsPrefix"]);
  366. }
  367. result = clone_1;
  368. }
  369. else if (isCDATA(node)) {
  370. var children = recursive ? cloneChildren(node.children) : [];
  371. var clone_2 = new NodeWithChildren(domelementtype_1.ElementType.CDATA, children);
  372. children.forEach(function (child) { return (child.parent = clone_2); });
  373. result = clone_2;
  374. }
  375. else if (isDocument(node)) {
  376. var children = recursive ? cloneChildren(node.children) : [];
  377. var clone_3 = new Document(children);
  378. children.forEach(function (child) { return (child.parent = clone_3); });
  379. if (node["x-mode"]) {
  380. clone_3["x-mode"] = node["x-mode"];
  381. }
  382. result = clone_3;
  383. }
  384. else if (isDirective(node)) {
  385. var instruction = new ProcessingInstruction(node.name, node.data);
  386. if (node["x-name"] != null) {
  387. instruction["x-name"] = node["x-name"];
  388. instruction["x-publicId"] = node["x-publicId"];
  389. instruction["x-systemId"] = node["x-systemId"];
  390. }
  391. result = instruction;
  392. }
  393. else {
  394. throw new Error("Not implemented yet: " + node.type);
  395. }
  396. result.startIndex = node.startIndex;
  397. result.endIndex = node.endIndex;
  398. return result;
  399. }
  400. exports.cloneNode = cloneNode;
  401. function cloneChildren(childs) {
  402. var children = childs.map(function (child) { return cloneNode(child, true); });
  403. for (var i = 1; i < children.length; i++) {
  404. children[i].prev = children[i - 1];
  405. children[i - 1].next = children[i];
  406. }
  407. return children;
  408. }