budoux/src/dom.ts

A small chunk segmenter.

/**
 * @license
 * Copyright 2021 Google LLC
 * 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
 *
 *     https://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.
 */

/**
 * This file is a collection of risky functions that interact with elements.
 * BudouX does not apply any HTML sanitization by default, but this is the place
 * to install a sanitizer if needed.
 */
import {win} from './win.js';

/**
 * Parses an html string and returns a parsed html document.
 * @param html An HTML string.
 * @return A Document.
 */
export const parseFromString = (html: string) => {
  return new win.DOMParser().parseFromString(html, 'text/html');
};

/**
 * Sets an innerHTML on a given Element or ShadowRoot.
 * @param element An Element or ShadowRoot.
 * @param html An HTML string to set.
 */
export const setInnerHtml = (element: Element | ShadowRoot, html: string) => {
  element.innerHTML = html;
};

/**
 * Applies wrapping styles to make linebreak controls work in children.
 * @param element A parent element to apply the styles.
 */
export const applyWrapStyle = (element: HTMLElement) => {
  element.style.wordBreak = 'keep-all';
  element.style.overflowWrap = 'anywhere';
};