81 lines
1.6 KiB
JavaScript
81 lines
1.6 KiB
JavaScript
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import { isNil } from "./lang.mjs";
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export class TextNode {
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#text;
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constructor(text) {
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this.#text = text;
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}
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get text() {
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return this.#text;
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}
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}
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export class Node {
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#tagName;
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#attrs;
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#children;
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#isSelfClosed;
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constructor(tagName) {
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this.#tagName = tagName;
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this.#attrs = {};
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this.#children = undefined;
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this.#isSelfClosed = selfClosedTagNames.has(tagName);
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}
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get tagName() {
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return this.#tagName;
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}
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get attrs() {
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return this.#attrs;
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}
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get children() {
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return this.#children;
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}
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withAttrs(attrs) {
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Object.entries(attrs).forEach(([key, value]) => this.addAttr(key, value));
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return this;
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}
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withAttr(name, value) {
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this.addAttr(name, value);
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return this;
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}
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addAttr(name, value) {
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this.#attrs[name] = value;
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}
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withText(text) {
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this.addText(text);
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return this;
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}
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addText(text) {
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this.addChild(new TextNode(text));
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}
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withChildren(nodes) {
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nodes.forEach((n) => this.addChild(n));
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return this;
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}
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withChild(node) {
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this.addChild(node);
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return this;
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}
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addChild(node) {
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if (this.#isSelfClosed)
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throw new Error("You cannot add child to self closed element");
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if (isNil(this.#children))
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this.#children = [];
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this.#children.push(node);
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}
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}
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const selfClosedTagNames = new Set([
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"area",
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"base",
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"br",
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"col",
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"embed",
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"hr",
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"img",
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"input",
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"link",
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"meta",
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"param",
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"source",
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"track",
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"wbr",
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]);
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