/*
This file is part of the Notesnook project (https://notesnook.com/)
Copyright (C) 2023 Streetwriters (Private) Limited
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
*/
import { decodeHTML5 } from "entities";
import { Parser } from "htmlparser2";
export const parseHTML = (input) =>
new globalThis.DOMParser().parseFromString(
wrapIntoHTMLDocument(input),
"text/html"
);
export function getDummyDocument() {
const doc = parseHTML("");
return doc;
}
export function getInnerText(element) {
return decodeHTML5(element.innerText || element.textContent);
}
function wrapIntoHTMLDocument(input) {
if (typeof input !== "string") return input;
if (input.includes("")) return input;
return `Document Fragment${input}`;
}
export function extractFirstParagraph(html) {
let text = "";
let start = false;
const parser = new Parser(
{
onopentag: (name) => {
if (name === "p") start = true;
},
onclosetag: (name) => {
if (name === "p") {
start = false;
parser.pause();
parser.reset();
}
},
ontext: (data) => {
if (start) text += data;
}
},
{
lowerCaseTags: false,
decodeEntities: true
}
);
parser.end(html);
return text;
}