DOMImplementation-impl.js
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"use strict";
const validateNames = require("../helpers/validate-names");
const { HTML_NS, SVG_NS } = require("../helpers/namespaces");
const { createElement, internalCreateElementNSSteps } = require("../helpers/create-element");
const DocumentType = require("../generated/DocumentType");
const Document = require("../generated/Document");
class DOMImplementationImpl {
constructor(globalObject, args, privateData) {
this._globalObject = globalObject;
this._ownerDocument = privateData.ownerDocument;
}
hasFeature() {
return true;
}
createDocumentType(qualifiedName, publicId, systemId) {
validateNames.qname(this._globalObject, qualifiedName);
return DocumentType.createImpl(this._globalObject, [], {
ownerDocument: this._ownerDocument,
name: qualifiedName,
publicId,
systemId
});
}
// https://dom.spec.whatwg.org/#dom-domimplementation-createdocument
createDocument(namespace, qualifiedName, doctype) {
let contentType = "application/xml";
if (namespace === HTML_NS) {
contentType = "application/xhtml+xml";
} else if (namespace === SVG_NS) {
contentType = "image/svg+xml";
}
const document = Document.createImpl(this._globalObject, [], {
options: { contentType, parsingMode: "xml", encoding: "UTF-8" }
});
let element = null;
if (qualifiedName !== "") {
element = internalCreateElementNSSteps(document, namespace, qualifiedName, {});
}
if (doctype !== null) {
document.appendChild(doctype);
}
if (element !== null) {
document.appendChild(element);
}
document._origin = this._ownerDocument._origin;
return document;
}
// https://dom.spec.whatwg.org/#dom-domimplementation-createhtmldocument
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(this._globalObject, [], {
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(this._globalObject, [], {
ownerDocument: this,
name: "html",
publicId: "",
systemId: ""
});
document.appendChild(doctype);
// Create an html element in the HTML namespace, and append it to doc.
const htmlElement = createElement(document, "html", HTML_NS);
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 = createElement(document, "head", HTML_NS);
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 = createElement(document, "title", HTML_NS);
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.
const bodyElement = createElement(document, "body", HTML_NS);
htmlElement.appendChild(bodyElement);
// 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;
}
}
module.exports = {
implementation: DOMImplementationImpl
};