“use strict”;
const vm = require(“vm”); const validateNames = require(“../helpers/validate-names”); const DocumentType = require(“../generated/DocumentType”); const Document = require(“../generated/Document”);
class DOMImplementationImpl {
constructor(args, privateData) { this.core = privateData.core; this._ownerDocument = privateData.ownerDocument; this._features = Object.create(null); } hasFeature() { return true; } createDocumentType(qualifiedName, publicId, systemId) { validateNames.qname(qualifiedName); return DocumentType.createImpl([], { core: this.core, ownerDocument: this._ownerDocument, name: qualifiedName, publicId, systemId }); } createDocument(namespace, qualifiedName, doctype) { namespace = namespace !== null ? String(namespace) : namespace; qualifiedName = qualifiedName === null ? "" : String(qualifiedName); if (doctype === undefined) { doctype = null; } const document = Document.createImpl([], { core: this.core, options: { parsingMode: "xml", encoding: "UTF-8" } }); let element = null; if (qualifiedName !== "") { element = document.createElementNS(namespace, qualifiedName); } if (doctype !== null) { document.appendChild(doctype); } if (element !== null) { document.appendChild(element); } return document; } createHTMLDocument(title) { // Let doc be a new document that is an HTML document. // Set doc's content type to "text/html". const document = Document.createImpl([], { core: this.core, options: { parsingMode: "html", encoding: "UTF-8" } }); // Create a doctype, with "html" as its name and with its node document set // to doc. Append the newly created node to doc. const doctype = DocumentType.createImpl([], { core: this.core, ownerDocument: this, name: "html", publicId: "", systemId: "" }); document.appendChild(doctype); // Create an html element in the HTML namespace, and append it to doc. const htmlElement = document.createElementNS("http://www.w3.org/1999/xhtml", "html"); document.appendChild(htmlElement); // Create a head element in the HTML namespace, and append it to the html // element created in the previous step. const headElement = document.createElement("head"); htmlElement.appendChild(headElement); // If the title argument is not omitted: if (title !== undefined) { // Create a title element in the HTML namespace, and append it to the head // element created in the previous step. const titleElement = document.createElement("title"); headElement.appendChild(titleElement); // Create a Text node, set its data to title (which could be the empty // string), and append it to the title element created in the previous step. titleElement.appendChild(document.createTextNode(title)); } // Create a body element in the HTML namespace, and append it to the html // element created in the earlier step. htmlElement.appendChild(document.createElement("body")); // doc's origin is an alias to the origin of the context object's associated // document, and doc's effective script origin is an alias to the effective // script origin of the context object's associated document. return document; } _removeFeature(feature, version) { feature = feature.toLowerCase(); if (this._features[feature]) { if (version) { const versions = this._features[feature]; for (let j = 0; j < versions.length; j++) { if (versions[j] === version) { versions.splice(j, 1); return; } } } else { delete this._features[feature]; } } } _addFeature(feature, version) { feature = feature.toLowerCase(); if (version) { if (!this._features[feature]) { this._features[feature] = []; } if (version instanceof Array) { Array.prototype.push.apply(this._features[feature], version); } else { this._features[feature].push(version); } if (feature === "processexternalresources" && (version === "script" || (version.indexOf && version.indexOf("script") !== -1)) && !vm.isContext(this._ownerDocument._global)) { vm.createContext(this._ownerDocument._global); this._ownerDocument._defaultView._globalProxy = vm.runInContext("this", this._ownerDocument._global); this._ownerDocument._defaultView = this._ownerDocument._defaultView._globalProxy; } } } _hasFeature(feature, version) { feature = feature ? feature.toLowerCase() : ""; const versions = this._features[feature] || false; if (!version && versions.length && versions.length > 0) { return true; } else if (typeof versions === "string") { return versions === version; } else if (versions.indexOf && versions.length > 0) { for (let i = 0; i < versions.length; i++) { const found = versions[i] instanceof RegExp ? versions[i].test(version) : versions[i] === version; if (found) { return true; } } return false; } return false; }
}
module.exports = {
implementation: DOMImplementationImpl
};