1008 lines
25 KiB
TypeScript
1008 lines
25 KiB
TypeScript
import {Channel} from "./channel.js";
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import {Emoji} from "./emoji.js";
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import {Guild} from "./guild.js";
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import {I18n} from "./i18n.js";
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import {Localuser} from "./localuser.js";
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import {Member} from "./member.js";
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import {Dialog} from "./settings.js";
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class MarkDown {
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txt: string[];
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keep: boolean;
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stdsize: boolean;
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owner: Localuser | Channel | void;
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info: Localuser["info"] | void = undefined;
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constructor(
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text: string | string[],
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owner: MarkDown["owner"],
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{keep = false, stdsize = false} = {},
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) {
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if (typeof text === typeof "") {
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this.txt = (text as string).split("");
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} else {
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this.txt = text as string[];
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}
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if (this.txt === undefined) {
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this.txt = [];
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}
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if (owner) {
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this.info = owner.info;
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}
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this.keep = keep;
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this.owner = owner;
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this.stdsize = stdsize;
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}
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get localuser() {
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if (this.owner instanceof Localuser) {
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return this.owner;
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} else if (this.owner) {
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return this.owner.localuser;
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}
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return null;
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}
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get rawString() {
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return this.txt.join("");
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}
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get textContent() {
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return this.makeHTML().textContent;
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}
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makeHTML({keep = this.keep, stdsize = this.stdsize} = {}) {
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return this.markdown(this.txt, {keep, stdsize});
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}
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markdown(text: string | string[], {keep = false, stdsize = false} = {}) {
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let txt: string[];
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if (typeof text === typeof "") {
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txt = (text as string).split("");
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} else {
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txt = text as string[];
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}
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if (txt === undefined) {
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txt = [];
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}
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const span = document.createElement("span");
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let current = document.createElement("span");
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function appendcurrent() {
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if (current.innerHTML !== "") {
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span.append(current);
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current = document.createElement("span");
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}
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}
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for (let i = 0; i < txt.length; i++) {
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if (txt[i] === "\n" || i === 0) {
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const first = i === 0;
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if (first) {
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i--;
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}
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let element: HTMLElement = document.createElement("span");
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let keepys = "";
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if (txt[i + 1] === "#") {
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if (txt[i + 2] === "#") {
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if (txt[i + 3] === "#" && txt[i + 4] === " ") {
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element = document.createElement("h3");
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keepys = "### ";
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i += 5;
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} else if (txt[i + 3] === " ") {
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element = document.createElement("h2");
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element.classList.add("h2md");
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keepys = "## ";
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i += 4;
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}
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} else if (txt[i + 2] === " ") {
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element = document.createElement("h1");
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keepys = "# ";
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i += 3;
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}
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} else if (txt[i + 1] === ">" && txt[i + 2] === " ") {
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element = document.createElement("div");
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const line = document.createElement("div");
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line.classList.add("quoteline");
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element.append(line);
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element.classList.add("quote");
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keepys = "> ";
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i += 3;
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}
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if (keepys) {
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appendcurrent();
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if (!first && !stdsize) {
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span.appendChild(document.createElement("br"));
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}
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const build: string[] = [];
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for (; txt[i] !== "\n" && txt[i] !== undefined; i++) {
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build.push(txt[i]);
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}
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try {
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if (stdsize) {
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element = document.createElement("span");
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}
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if (keep) {
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element.append(keepys);
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//span.appendChild(document.createElement("br"));
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}
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element.appendChild(this.markdown(build, {keep, stdsize}));
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span.append(element);
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} finally {
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i -= 1;
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continue;
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}
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}
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if (first) {
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i++;
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}
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}
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if (txt[i] === "\\") {
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const chatset = new Set("\\`{}[]()<>*_#+-.!|".split(""));
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if (chatset.has(txt[i + 1])) {
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if (keep) {
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current.textContent += txt[i];
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}
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current.textContent += txt[i + 1];
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i++;
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continue;
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}
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}
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if (txt[i] === "\n") {
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if (!stdsize) {
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appendcurrent();
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span.append(document.createElement("br"));
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}
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continue;
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}
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if (txt[i] === "`") {
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let count = 1;
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if (txt[i + 1] === "`") {
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count++;
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if (txt[i + 2] === "`") {
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count++;
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}
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}
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let build = "";
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if (keep) {
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build += "`".repeat(count);
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}
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let find = 0;
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let j = i + count;
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let init = true;
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for (; txt[j] !== undefined && (txt[j] !== "\n" || count === 3) && find !== count; j++) {
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if (txt[j] === "`") {
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find++;
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} else {
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if (find !== 0) {
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build += "`".repeat(find);
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find = 0;
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}
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if (init && count === 3) {
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if (txt[j] === " " || txt[j] === "\n") {
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init = false;
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}
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if (keep) {
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build += txt[j];
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}
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continue;
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}
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build += txt[j];
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}
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}
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if (stdsize) {
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build = build.replaceAll("\n", "");
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}
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if (find === count) {
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appendcurrent();
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i = j;
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if (keep) {
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build += "`".repeat(find);
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}
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if (count !== 3 && !stdsize) {
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const samp = document.createElement("samp");
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samp.textContent = build;
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span.appendChild(samp);
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} else {
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const pre = document.createElement("pre");
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if (build.at(-1) === "\n") {
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build = build.substring(0, build.length - 1);
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}
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if (txt[i] === "\n") {
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i++;
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}
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pre.textContent = build;
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span.appendChild(pre);
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}
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i--;
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continue;
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}
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}
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if (txt[i] === "*") {
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let count = 1;
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if (txt[i + 1] === "*") {
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count++;
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if (txt[i + 2] === "*") {
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count++;
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}
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}
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let build: string[] = [];
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let find = 0;
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let j = i + count;
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for (; txt[j] !== undefined && find !== count; j++) {
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if (txt[j] === "*") {
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find++;
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} else {
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build.push(txt[j]);
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if (find !== 0) {
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build = build.concat(new Array(find).fill("*"));
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find = 0;
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}
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}
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}
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if (find === count && (count != 1 || txt[i + 1] !== " ")) {
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appendcurrent();
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i = j;
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const stars = "*".repeat(count);
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if (count === 1) {
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const i = document.createElement("i");
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if (keep) {
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i.append(stars);
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}
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i.appendChild(this.markdown(build, {keep, stdsize}));
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if (keep) {
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i.append(stars);
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}
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span.appendChild(i);
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} else if (count === 2) {
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const b = document.createElement("b");
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if (keep) {
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b.append(stars);
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}
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b.appendChild(this.markdown(build, {keep, stdsize}));
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if (keep) {
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b.append(stars);
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}
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span.appendChild(b);
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} else {
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const b = document.createElement("b");
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const i = document.createElement("i");
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if (keep) {
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b.append(stars);
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}
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b.appendChild(this.markdown(build, {keep, stdsize}));
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if (keep) {
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b.append(stars);
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}
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i.appendChild(b);
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span.appendChild(i);
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}
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i--;
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continue;
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}
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}
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if (txt[i] === "_") {
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let count = 1;
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if (txt[i + 1] === "_") {
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count++;
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if (txt[i + 2] === "_") {
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count++;
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}
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}
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let build: string[] = [];
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let find = 0;
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let j = i + count;
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for (; txt[j] !== undefined && find !== count; j++) {
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if (txt[j] === "_") {
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find++;
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} else {
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build.push(txt[j]);
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if (find !== 0) {
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build = build.concat(new Array(find).fill("_"));
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find = 0;
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}
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}
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}
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if (
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find === count &&
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(count != 1 || txt[j + 1] === " " || txt[j + 1] === "\n" || txt[j + 1] === undefined)
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) {
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appendcurrent();
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i = j;
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const underscores = "_".repeat(count);
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if (count === 1) {
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const i = document.createElement("i");
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if (keep) {
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i.append(underscores);
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}
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i.appendChild(this.markdown(build, {keep, stdsize}));
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if (keep) {
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i.append(underscores);
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}
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span.appendChild(i);
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} else if (count === 2) {
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const u = document.createElement("u");
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if (keep) {
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u.append(underscores);
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}
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u.appendChild(this.markdown(build, {keep, stdsize}));
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if (keep) {
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u.append(underscores);
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}
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span.appendChild(u);
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} else {
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const u = document.createElement("u");
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const i = document.createElement("i");
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if (keep) {
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i.append(underscores);
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}
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i.appendChild(this.markdown(build, {keep, stdsize}));
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if (keep) {
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i.append(underscores);
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}
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u.appendChild(i);
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span.appendChild(u);
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}
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i--;
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continue;
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}
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}
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if (txt[i] === "~" && txt[i + 1] === "~") {
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const count = 2;
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let build: string[] = [];
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let find = 0;
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let j = i + 2;
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for (; txt[j] !== undefined && find !== count; j++) {
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if (txt[j] === "~") {
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find++;
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} else {
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build.push(txt[j]);
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if (find !== 0) {
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build = build.concat(new Array(find).fill("~"));
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find = 0;
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}
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}
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}
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if (find === count) {
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appendcurrent();
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i = j - 1;
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const tildes = "~~";
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if (count === 2) {
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const s = document.createElement("s");
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if (keep) {
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s.append(tildes);
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}
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s.appendChild(this.markdown(build, {keep, stdsize}));
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if (keep) {
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s.append(tildes);
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}
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span.appendChild(s);
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}
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continue;
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}
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}
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if (txt[i] === "|" && txt[i + 1] === "|") {
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const count = 2;
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let build: string[] = [];
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let find = 0;
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let j = i + 2;
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for (; txt[j] !== undefined && find !== count; j++) {
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if (txt[j] === "|") {
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find++;
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} else {
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build.push(txt[j]);
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if (find !== 0) {
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build = build.concat(new Array(find).fill("~"));
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find = 0;
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}
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}
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}
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if (find === count) {
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appendcurrent();
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i = j - 1;
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const pipes = "||";
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if (count === 2) {
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const j = document.createElement("j");
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if (keep) {
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j.append(pipes);
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}
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j.appendChild(this.markdown(build, {keep, stdsize}));
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j.classList.add("spoiler");
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j.onclick = MarkDown.unspoil;
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if (keep) {
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j.append(pipes);
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}
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span.appendChild(j);
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}
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continue;
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}
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}
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if (
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!keep &&
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txt[i] === "h" &&
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txt[i + 1] === "t" &&
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txt[i + 2] === "t" &&
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txt[i + 3] === "p"
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) {
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let build = "http";
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let j = i + 4;
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const endchars = new Set(["\\", "<", ">", "|", "]", " ", "\n"]);
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for (; txt[j] !== undefined; j++) {
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const char = txt[j];
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if (endchars.has(char)) {
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break;
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}
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build += char;
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}
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if (URL.canParse(build)) {
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appendcurrent();
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const a = document.createElement("a");
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//a.href=build;
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MarkDown.safeLink(a, build);
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a.textContent = build;
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a.target = "_blank";
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i = j - 1;
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span.appendChild(a);
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continue;
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}
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}
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if (txt[i] === "<" && (txt[i + 1] === "@" || txt[i + 1] === "#") && this.localuser) {
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let id = "";
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let j = i + 2;
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const numbers = new Set(["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]);
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for (; txt[j] !== undefined; j++) {
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const char = txt[j];
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if (!numbers.has(char)) {
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break;
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}
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id += char;
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}
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if (txt[j] === ">") {
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appendcurrent();
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const mention = document.createElement("span");
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mention.classList.add("mentionMD");
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mention.contentEditable = "false";
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const char = txt[i + 1];
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i = j;
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switch (char) {
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case "@":
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const user = this.localuser.userMap.get(id);
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if (user) {
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mention.textContent = `@${user.name}`;
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let guild: null | Guild = null;
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if (this.owner instanceof Channel) {
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guild = this.owner.guild;
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}
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if (!keep) {
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user.bind(mention, guild);
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}
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if (guild) {
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Member.resolveMember(user, guild).then((member) => {
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if (member) {
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mention.textContent = `@${member.name}`;
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}
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});
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}
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} else {
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mention.textContent = "@unknown";
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}
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break;
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case "#":
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const channel = this.localuser.channelids.get(id);
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if (channel) {
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mention.textContent = `#${channel.name}`;
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if (!keep) {
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mention.onclick = (_) => {
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if (!this.localuser) return;
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this.localuser.goToChannel(id);
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};
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}
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} else {
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mention.textContent = "#unknown";
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}
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break;
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}
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span.appendChild(mention);
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mention.setAttribute("real", `<${char}${id}>`);
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continue;
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}
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}
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if (txt[i] === "<" && txt[i + 1] === "t" && txt[i + 2] === ":") {
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let found = false;
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const build = ["<", "t", ":"];
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let j = i + 3;
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for (; txt[j] !== void 0; j++) {
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build.push(txt[j]);
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if (txt[j] === ">") {
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found = true;
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break;
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}
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}
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if (found) {
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appendcurrent();
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i = j;
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const parts = build
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.join("")
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.match(/^<t:([0-9]{1,16})(:([tTdDfFR]))?>$/) as RegExpMatchArray;
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const dateInput = new Date(Number.parseInt(parts[1]) * 1000);
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let time = "";
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if (Number.isNaN(dateInput.getTime())) time = build.join("");
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else {
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if (parts[3] === "d")
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time = dateInput.toLocaleString(void 0, {
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day: "2-digit",
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month: "2-digit",
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year: "numeric",
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});
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else if (parts[3] === "D")
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time = dateInput.toLocaleString(void 0, {
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day: "numeric",
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month: "long",
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year: "numeric",
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});
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else if (!parts[3] || parts[3] === "f")
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time =
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dateInput.toLocaleString(void 0, {
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day: "numeric",
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month: "long",
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year: "numeric",
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}) +
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" " +
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dateInput.toLocaleString(void 0, {
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hour: "2-digit",
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minute: "2-digit",
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});
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else if (parts[3] === "F")
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time =
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dateInput.toLocaleString(void 0, {
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day: "numeric",
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month: "long",
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year: "numeric",
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weekday: "long",
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}) +
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" " +
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dateInput.toLocaleString(void 0, {
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|
hour: "2-digit",
|
|
minute: "2-digit",
|
|
});
|
|
else if (parts[3] === "t")
|
|
time = dateInput.toLocaleString(void 0, {
|
|
hour: "2-digit",
|
|
minute: "2-digit",
|
|
});
|
|
else if (parts[3] === "T")
|
|
time = dateInput.toLocaleString(void 0, {
|
|
hour: "2-digit",
|
|
minute: "2-digit",
|
|
second: "2-digit",
|
|
});
|
|
else if (parts[3] === "R")
|
|
time =
|
|
Math.round((Date.now() - Number.parseInt(parts[1]) * 1000) / 1000 / 60) +
|
|
" minutes ago";
|
|
}
|
|
|
|
const timeElem = document.createElement("span");
|
|
timeElem.classList.add("markdown-timestamp");
|
|
timeElem.textContent = time;
|
|
span.appendChild(timeElem);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (
|
|
txt[i] === "<" &&
|
|
(txt[i + 1] === ":" || (txt[i + 1] === "a" && txt[i + 2] === ":" && this.owner))
|
|
) {
|
|
let found = false;
|
|
const build = txt[i + 1] === "a" ? ["<", "a", ":"] : ["<", ":"];
|
|
let j = i + build.length;
|
|
for (; txt[j] !== void 0; j++) {
|
|
build.push(txt[j]);
|
|
|
|
if (txt[j] === ">") {
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found) {
|
|
const buildjoin = build.join("");
|
|
const parts = buildjoin.match(/^<(a)?:\w+:(\d{10,30})>$/);
|
|
if (parts && parts[2]) {
|
|
appendcurrent();
|
|
i = j;
|
|
const isEmojiOnly = txt.join("").trim() === buildjoin.trim();
|
|
const owner = this.owner instanceof Channel ? this.owner.guild : this.owner;
|
|
if (!owner) continue;
|
|
const emoji = new Emoji(
|
|
{name: buildjoin, id: parts[2], animated: Boolean(parts[1])},
|
|
owner,
|
|
);
|
|
span.appendChild(emoji.getHTML(isEmojiOnly));
|
|
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (txt[i] == "[" && !keep) {
|
|
let partsFound = 0;
|
|
let j = i + 1;
|
|
const build = ["["];
|
|
for (; txt[j] !== void 0; j++) {
|
|
build.push(txt[j]);
|
|
|
|
if (partsFound === 0 && txt[j] === "]") {
|
|
if (
|
|
txt[j + 1] === "(" &&
|
|
txt[j + 2] === "h" &&
|
|
txt[j + 3] === "t" &&
|
|
txt[j + 4] === "t" &&
|
|
txt[j + 5] === "p" &&
|
|
(txt[j + 6] === "s" || txt[j + 6] === ":")
|
|
) {
|
|
partsFound++;
|
|
} else {
|
|
break;
|
|
}
|
|
} else if (partsFound === 1 && txt[j] === ")") {
|
|
partsFound++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (partsFound === 2) {
|
|
appendcurrent();
|
|
|
|
const parts = build.join("").match(/^\[(.+)\]\((https?:.+?)( ('|").+('|"))?\)$/);
|
|
if (parts) {
|
|
const linkElem = document.createElement("a");
|
|
if (URL.canParse(parts[2])) {
|
|
i = j;
|
|
MarkDown.safeLink(linkElem, parts[2]);
|
|
linkElem.textContent = parts[1];
|
|
linkElem.target = "_blank";
|
|
linkElem.rel = "noopener noreferrer";
|
|
linkElem.title =
|
|
(parts[3] ? parts[3].substring(2, parts[3].length - 1) + "\n\n" : "") + parts[2];
|
|
span.appendChild(linkElem);
|
|
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
current.textContent += txt[i];
|
|
}
|
|
appendcurrent();
|
|
return span;
|
|
}
|
|
static unspoil(e: any): void {
|
|
e.target.classList.remove("spoiler");
|
|
e.target.classList.add("unspoiled");
|
|
}
|
|
onUpdate: (upto: string, pre: boolean) => unknown = () => {};
|
|
box = new WeakRef(document.createElement("div"));
|
|
giveBox(box: HTMLDivElement, onUpdate: (upto: string, pre: boolean) => unknown = () => {}) {
|
|
this.box = new WeakRef(box);
|
|
this.onUpdate = onUpdate;
|
|
box.onkeydown = (_) => {
|
|
//console.log(_);
|
|
};
|
|
let prevcontent = "";
|
|
box.onkeyup = (_) => {
|
|
const content = MarkDown.gatherBoxText(box);
|
|
if (content !== prevcontent) {
|
|
prevcontent = content;
|
|
this.txt = content.split("");
|
|
this.boxupdate();
|
|
MarkDown.gatherBoxText(box);
|
|
}
|
|
};
|
|
box.onpaste = (_) => {
|
|
if (!_.clipboardData) return;
|
|
console.log(_.clipboardData.types);
|
|
const data = _.clipboardData.getData("text");
|
|
|
|
document.execCommand("insertHTML", false, data);
|
|
_.preventDefault();
|
|
if (!box.onkeyup) return;
|
|
box.onkeyup(new KeyboardEvent("_"));
|
|
};
|
|
}
|
|
customBox?: [(arg1: string) => HTMLElement, (arg1: HTMLElement) => string];
|
|
clearCustom() {
|
|
this.customBox = undefined;
|
|
}
|
|
setCustomBox(
|
|
stringToHTML: (arg1: string) => HTMLElement,
|
|
HTMLToString = MarkDown.gatherBoxText.bind(MarkDown),
|
|
) {
|
|
this.customBox = [stringToHTML, HTMLToString];
|
|
}
|
|
boxupdate(offset = 0) {
|
|
const box = this.box.deref();
|
|
if (!box) return;
|
|
let restore: undefined | (() => void);
|
|
if (this.customBox) {
|
|
restore = saveCaretPosition(box, offset, this.customBox[1]);
|
|
} else {
|
|
restore = saveCaretPosition(box, offset);
|
|
}
|
|
|
|
if (this.customBox) {
|
|
//TODO maybe the custom logic applies here as well, but that's a later thing
|
|
box.innerHTML = "";
|
|
box.append(this.customBox[0](this.rawString));
|
|
} else {
|
|
//console.time();
|
|
const html = this.makeHTML({keep: true});
|
|
//TODO this may be slow, may want to check in on this in the future if it is
|
|
if (!box.hasChildNodes() || html.isEqualNode(Array.from(box.childNodes)[0])) {
|
|
//console.log("no replace needed");
|
|
} else {
|
|
box.innerHTML = "";
|
|
box.append(html);
|
|
}
|
|
//console.timeEnd();
|
|
}
|
|
if (restore) {
|
|
restore();
|
|
if (this.customBox) {
|
|
const test = saveCaretPosition(box, 0, this.customBox[1]);
|
|
if (test) test();
|
|
} else {
|
|
const test = saveCaretPosition(box);
|
|
if (test) test();
|
|
}
|
|
}
|
|
this.onUpdate(text, formatted);
|
|
}
|
|
static gatherBoxText(element: HTMLElement): string {
|
|
if (element.tagName.toLowerCase() === "img") {
|
|
return (element as HTMLImageElement).alt;
|
|
}
|
|
if (element.tagName.toLowerCase() === "br") {
|
|
return "\n";
|
|
}
|
|
if (element.hasAttribute("real")) {
|
|
return element.getAttribute("real") as string;
|
|
}
|
|
if (element.tagName.toLowerCase() === "pre" || element.tagName.toLowerCase() === "samp") {
|
|
formatted = true;
|
|
} else {
|
|
formatted = false;
|
|
}
|
|
let build = "";
|
|
for (const thing of Array.from(element.childNodes)) {
|
|
if (thing instanceof Text) {
|
|
const text = thing.textContent;
|
|
build += text;
|
|
|
|
continue;
|
|
}
|
|
const text = this.gatherBoxText(thing as HTMLElement);
|
|
if (text) {
|
|
build += text;
|
|
}
|
|
}
|
|
return build;
|
|
}
|
|
static readonly trustedDomains = new Set([location.host]);
|
|
static safeLink(elm: HTMLElement, url: string) {
|
|
if (URL.canParse(url)) {
|
|
const Url = new URL(url);
|
|
if (elm instanceof HTMLAnchorElement && this.trustedDomains.has(Url.host)) {
|
|
elm.href = url;
|
|
elm.target = "_blank";
|
|
return;
|
|
}
|
|
elm.onmouseup = (_) => {
|
|
if (_.button === 2) return;
|
|
console.log(":3");
|
|
function open() {
|
|
const proxy = window.open(url, "_blank");
|
|
if (proxy && _.button === 1) {
|
|
proxy.focus();
|
|
} else if (proxy) {
|
|
window.focus();
|
|
}
|
|
}
|
|
if (this.trustedDomains.has(Url.host)) {
|
|
open();
|
|
} else {
|
|
const full = new Dialog("");
|
|
full.options.addTitle(I18n.getTranslation("leaving"));
|
|
full.options.addText(I18n.getTranslation("goingToURL", Url.host));
|
|
const options = full.options.addOptions("", {ltr: true});
|
|
options.addButtonInput("", I18n.getTranslation("nevermind"), () => full.hide());
|
|
options.addButtonInput("", I18n.getTranslation("goThere"), () => {
|
|
open();
|
|
full.hide();
|
|
});
|
|
options.addButtonInput("", I18n.getTranslation("goThereTrust"), () => {
|
|
open();
|
|
full.hide();
|
|
this.trustedDomains.add(Url.host);
|
|
});
|
|
full.show();
|
|
}
|
|
};
|
|
} else {
|
|
throw new Error(url + " is not a valid URL");
|
|
}
|
|
}
|
|
/*
|
|
static replace(base: HTMLElement, newelm: HTMLElement) {
|
|
const basechildren = base.children;
|
|
const newchildren = newelm.children;
|
|
for (const thing of Array.from(newchildren)) {
|
|
base.append(thing);
|
|
}
|
|
}
|
|
*/
|
|
}
|
|
|
|
//solution from https://stackoverflow.com/questions/4576694/saving-and-restoring-caret-position-for-contenteditable-div
|
|
let text = "";
|
|
let formatted = false;
|
|
function saveCaretPosition(
|
|
context: HTMLElement,
|
|
offset = 0,
|
|
txtLengthFunc = MarkDown.gatherBoxText.bind(MarkDown),
|
|
) {
|
|
const selection = window.getSelection() as Selection;
|
|
if (!selection) return;
|
|
try {
|
|
const range = selection.getRangeAt(0);
|
|
|
|
let base = selection.anchorNode as Node;
|
|
range.setStart(base, 0);
|
|
let baseString: string;
|
|
if (!(base instanceof Text)) {
|
|
let i = 0;
|
|
const index = selection.focusOffset;
|
|
//@ts-ignore
|
|
for (const thing of base.childNodes) {
|
|
if (i === index) {
|
|
base = thing;
|
|
break;
|
|
}
|
|
i++;
|
|
}
|
|
if (base instanceof HTMLElement) {
|
|
baseString = txtLengthFunc(base);
|
|
} else {
|
|
baseString = base.textContent as string;
|
|
}
|
|
} else {
|
|
baseString = selection.toString();
|
|
}
|
|
|
|
range.setStart(context, 0);
|
|
|
|
let build = "";
|
|
//I think this is working now :3
|
|
function crawlForText(context: Node) {
|
|
//@ts-ignore
|
|
const children = [...context.childNodes];
|
|
if (children.length === 1 && children[0] instanceof Text) {
|
|
if (selection.containsNode(context, false)) {
|
|
build += txtLengthFunc(context as HTMLElement);
|
|
} else if (selection.containsNode(context, true)) {
|
|
if (context.contains(base) || context === base || base.contains(context)) {
|
|
build += baseString;
|
|
} else {
|
|
build += context.textContent;
|
|
}
|
|
} else {
|
|
console.error(context);
|
|
}
|
|
return;
|
|
}
|
|
for (const node of children as Node[]) {
|
|
if (selection.containsNode(node, false)) {
|
|
if (node instanceof HTMLElement) {
|
|
build += txtLengthFunc(node);
|
|
} else {
|
|
build += node.textContent;
|
|
}
|
|
} else if (selection.containsNode(node, true)) {
|
|
if (node instanceof HTMLElement) {
|
|
crawlForText(node);
|
|
} else {
|
|
console.error(node, "This shouldn't happen");
|
|
}
|
|
} else {
|
|
//console.error(node,"This shouldn't happen");
|
|
}
|
|
}
|
|
}
|
|
crawlForText(context);
|
|
if (baseString === "\n") {
|
|
build += baseString;
|
|
}
|
|
text = build;
|
|
let len = build.length + offset;
|
|
len = Math.min(len, txtLengthFunc(context).length);
|
|
return function restore() {
|
|
if (!selection) return;
|
|
const pos = getTextNodeAtPosition(context, len, txtLengthFunc);
|
|
selection.removeAllRanges();
|
|
const range = new Range();
|
|
range.setStart(pos.node, pos.position);
|
|
selection.addRange(range);
|
|
};
|
|
} catch {
|
|
return undefined;
|
|
}
|
|
}
|
|
|
|
function getTextNodeAtPosition(
|
|
root: Node,
|
|
index: number,
|
|
txtLengthFunc = MarkDown.gatherBoxText.bind(MarkDown),
|
|
): {
|
|
node: Node;
|
|
position: number;
|
|
} {
|
|
if (root instanceof Text) {
|
|
return {
|
|
node: root,
|
|
position: index,
|
|
};
|
|
} else if (root instanceof HTMLBRElement) {
|
|
return {
|
|
node: root,
|
|
position: 0,
|
|
};
|
|
} else if (root instanceof HTMLElement && root.hasAttribute("real")) {
|
|
return {
|
|
node: root,
|
|
position: -1,
|
|
};
|
|
}
|
|
let lastElm: Node = root;
|
|
for (const node of root.childNodes as unknown as Node[]) {
|
|
lastElm = node;
|
|
let len: number;
|
|
if (node instanceof HTMLElement) {
|
|
len = txtLengthFunc(node).length;
|
|
} else {
|
|
len = (node.textContent as string).length;
|
|
}
|
|
if (len <= index && (len < index || len !== 0)) {
|
|
index -= len;
|
|
} else {
|
|
const returny = getTextNodeAtPosition(node, index);
|
|
if (returny.position === -1) {
|
|
console.warn("in here");
|
|
index = 0;
|
|
continue;
|
|
}
|
|
return returny;
|
|
}
|
|
}
|
|
if (!(lastElm instanceof HTMLElement && lastElm.hasAttribute("real"))) {
|
|
while (lastElm && !(lastElm instanceof Text || lastElm instanceof HTMLBRElement)) {
|
|
lastElm = lastElm.childNodes[lastElm.childNodes.length - 1];
|
|
}
|
|
if (lastElm) {
|
|
const position = (lastElm.textContent as string).length;
|
|
return {
|
|
node: lastElm,
|
|
position,
|
|
};
|
|
}
|
|
}
|
|
const span = document.createElement("span");
|
|
root.appendChild(span);
|
|
return {
|
|
node: span,
|
|
position: 0,
|
|
};
|
|
}
|
|
export {MarkDown, saveCaretPosition, getTextNodeAtPosition};
|