/*************************************************************
*
* Copyright (c) 2022-2022 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @fileoverview Implements the linkedom DOM adaptor
*
* @author dpvc@mathjax.org (Davide Cervone)
*/
import {HTMLAdaptor} from './HTMLAdaptor.js';
import {NodeMixin, Constructor} from './NodeMixin.js';
import {OptionList} from '../util/Options.js';
/**
* The constructor for an HTMLAdaptor
*/
export type HTMLAdaptorConstructor = Constructor<HTMLAdaptor<HTMLElement, Text, Document>>;
/**
* The LinkedomAdaptor class
*/
export class LinkedomAdaptor extends NodeMixin<HTMLElement, Text, Document, HTMLAdaptorConstructor>(HTMLAdaptor) {
/**
* @override
*/
public parse(text: string, format: string = 'text/html') {
//
// Make sure the text string has nodes (in particular, it can't be empty)
//
if (!text.match(/^(?:\s|\n)*</)) text = '<html>' + text + '</html>';
return this.parser.parseFromString(text, format);
}
/**
* @override
*
* This will do an HTML serialization, which may be good enough, but
* won't necessarily close some tags properly.
*/
public serializeXML(node: HTMLElement) {
return this.outerHTML(node);
}
}
/**
* Function for creating an HTML adaptor using linkedom
*
* @param {any} parseHTML The linkedom HTML parser to use for this adaptor
* @return {LinkeddomAdaptor} The newly created adaptor
*/
export function linkedomAdaptor(parseHTML: any, options: OptionList = null): LinkedomAdaptor {
const window = parseHTML('<html></html>');
window.constructor.prototype.HTMLCollection = class {}; // add fake class for missing HTMLCollecton
return new LinkedomAdaptor(window, options);
}