happy-dom
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Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.
145 lines • 6.61 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
var __classPrivateFieldSet = (this && this.__classPrivateFieldSet) || function (receiver, state, value, kind, f) {
if (kind === "m") throw new TypeError("Private method is not writable");
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a setter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot write private member to an object whose class did not declare it");
return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
};
var __classPrivateFieldGet = (this && this.__classPrivateFieldGet) || function (receiver, state, kind, f) {
if (kind === "a" && !f) throw new TypeError("Private accessor was defined without a getter");
if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver)) throw new TypeError("Cannot read private member from an object whose class did not declare it");
return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
var _DOMParser_instances, _DOMParser_window, _DOMParser_createDocument;
Object.defineProperty(exports, "__esModule", { value: true });
const PropertySymbol = __importStar(require("../PropertySymbol.cjs"));
const XMLParser_js_1 = __importDefault(require("../xml-parser/XMLParser.cjs"));
const DOMException_js_1 = __importDefault(require("../exception/DOMException.cjs"));
const NodeTypeEnum_js_1 = __importDefault(require("../nodes/node/NodeTypeEnum.cjs"));
/**
* DOM parser.
*
* Reference:
* https://developer.mozilla.org/en-US/docs/Web/API/DOMParser.
*/
class DOMParser {
/**
* Constructor.
*
* @param window Window.
*/
constructor(window) {
_DOMParser_instances.add(this);
_DOMParser_window.set(this, void 0);
__classPrivateFieldSet(this, _DOMParser_window, window, "f");
}
/**
* Parses HTML and returns a root element.
*
* @param string HTML data.
* @param mimeType Mime type.
* @returns Root element.
*/
parseFromString(string, mimeType) {
if (!mimeType) {
throw new DOMException_js_1.default('Second parameter "mimeType" is mandatory.');
}
const newDocument = __classPrivateFieldGet(this, _DOMParser_instances, "m", _DOMParser_createDocument).call(this, mimeType);
newDocument[PropertySymbol.childNodes].length = 0;
newDocument[PropertySymbol.children].length = 0;
const root = XMLParser_js_1.default.parse(newDocument, string, { evaluateScripts: true });
let documentElement = null;
let documentTypeNode = null;
for (const node of root[PropertySymbol.childNodes]) {
if (node['tagName'] === 'HTML') {
documentElement = node;
}
else if (node[PropertySymbol.nodeType] === NodeTypeEnum_js_1.default.documentTypeNode) {
documentTypeNode = node;
}
if (documentElement && documentTypeNode) {
break;
}
}
if (documentElement) {
if (documentTypeNode) {
newDocument.appendChild(documentTypeNode);
}
newDocument.appendChild(documentElement);
const body = newDocument.body;
if (body) {
for (const child of root[PropertySymbol.childNodes].slice()) {
body.appendChild(child);
}
}
}
else {
switch (mimeType) {
case 'image/svg+xml':
{
for (const node of root[PropertySymbol.childNodes].slice()) {
newDocument.appendChild(node);
}
}
break;
case 'text/html':
default:
{
const documentElement = newDocument.createElement('html');
const bodyElement = newDocument.createElement('body');
const headElement = newDocument.createElement('head');
documentElement.appendChild(headElement);
documentElement.appendChild(bodyElement);
newDocument.appendChild(documentElement);
for (const node of root[PropertySymbol.childNodes].slice()) {
bodyElement.appendChild(node);
}
}
break;
}
}
return newDocument;
}
}
_DOMParser_window = new WeakMap(), _DOMParser_instances = new WeakSet(), _DOMParser_createDocument = function _DOMParser_createDocument(mimeType) {
switch (mimeType) {
case 'text/html':
return new (__classPrivateFieldGet(this, _DOMParser_window, "f").HTMLDocument)();
case 'image/svg+xml':
return new (__classPrivateFieldGet(this, _DOMParser_window, "f").SVGDocument)();
case 'text/xml':
case 'application/xml':
case 'application/xhtml+xml':
return new (__classPrivateFieldGet(this, _DOMParser_window, "f").XMLDocument)();
default:
throw new DOMException_js_1.default(`Unknown mime type "${mimeType}".`);
}
};
exports.default = DOMParser;
//# sourceMappingURL=DOMParser.cjs.map