567 lines
22 KiB
JavaScript
567 lines
22 KiB
JavaScript
import { Channel } from "./channel.js";
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import { Emoji } from "./emoji.js";
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export { MarkDown };
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class MarkDown {
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txt;
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keep;
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stdsize;
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owner;
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info;
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constructor(text, owner, { keep = false, stdsize = false } = {}) {
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if ((typeof text) === (typeof "")) {
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this.txt = text.split("");
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}
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else {
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this.txt = text;
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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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this.info = owner.info;
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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 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: keep, stdsize: stdsize });
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}
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markdown(text, { keep = false, stdsize = false } = {}) {
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let txt;
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if ((typeof text) === (typeof "")) {
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txt = text.split("");
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}
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else {
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txt = text;
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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;
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let keepys = "";
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if (txt[i + 1] === "#") {
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console.log("test");
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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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}
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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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}
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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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}
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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 = [];
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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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else
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continue;
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if (keep) {
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element.append(keepys);
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}
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element.appendChild(this.markdown(build, { keep: keep, stdsize: stdsize }));
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span.append(element);
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}
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finally {
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i -= 1;
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console.log(txt[i]);
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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] === "\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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}
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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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console.log(build);
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build = build.replaceAll("\n", "");
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console.log(build, JSON.stringify(build));
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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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}
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else {
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const pre = document.createElement("pre");
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if (build[build.length - 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 = [];
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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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}
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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: keep, stdsize: 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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}
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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: keep, stdsize: 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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}
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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: keep, stdsize: 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 = [];
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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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}
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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[j + 1] === " " || txt[j + 1] === "\n" || txt[j + 1] === undefined))) {
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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: keep, stdsize: 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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}
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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: keep, stdsize: 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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}
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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: keep, stdsize: 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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let count = 2;
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let build = [];
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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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}
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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: keep, stdsize: 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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let count = 2;
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let build = [];
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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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}
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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: keep, stdsize: 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 (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.join("").match(/^<t:([0-9]{1,16})(:([tTdDfFR]))?>$/);
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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()))
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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, { day: "2-digit", month: "2-digit", year: "numeric" });
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else if (parts[3] === "D")
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time = dateInput.toLocaleString(void 0, { day: "numeric", month: "long", year: "numeric" });
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else if (!parts[3] || parts[3] === "f")
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time = dateInput.toLocaleString(void 0, { day: "numeric", month: "long", year: "numeric" }) + " " +
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dateInput.toLocaleString(void 0, { hour: "2-digit", minute: "2-digit" });
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else if (parts[3] === "F")
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time = dateInput.toLocaleString(void 0, { day: "numeric", month: "long", year: "numeric", weekday: "long" }) + " " +
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dateInput.toLocaleString(void 0, { hour: "2-digit", minute: "2-digit" });
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else if (parts[3] === "t")
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time = dateInput.toLocaleString(void 0, { hour: "2-digit", minute: "2-digit" });
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else if (parts[3] === "T")
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time = dateInput.toLocaleString(void 0, { hour: "2-digit", minute: "2-digit", second: "2-digit" });
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else if (parts[3] === "R")
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time = Math.round((Date.now() - (Number.parseInt(parts[1]) * 1000)) / 1000 / 60) + " minutes ago";
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}
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const timeElem = document.createElement("span");
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timeElem.classList.add("markdown-timestamp");
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timeElem.textContent = time;
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span.appendChild(timeElem);
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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] === "a" && txt[i + 2] === ":"))) {
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let found = false;
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const build = txt[i + 1] === "a" ? ["<", "a", ":"] : ["<", ":"];
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let j = i + build.length;
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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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const buildjoin = build.join("");
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const parts = buildjoin.match(/^<(a)?:\w+:(\d{10,30})>$/);
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if (parts && parts[2]) {
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appendcurrent();
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i = j;
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const isEmojiOnly = txt.join("").trim() === buildjoin.trim();
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const owner = (this.owner instanceof Channel) ? this.owner.guild : this.owner;
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const emoji = new Emoji({ name: buildjoin, id: parts[2], animated: !!parts[1] }, owner);
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span.appendChild(emoji.getHTML(isEmojiOnly));
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continue;
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}
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}
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}
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current.textContent += txt[i];
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}
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appendcurrent();
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return span;
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}
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static unspoil(e) {
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e.target.classList.remove("spoiler");
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e.target.classList.add("unspoiled");
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}
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giveBox(box) {
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box.onkeydown = _ => {
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//console.log(_);
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};
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let prevcontent = "";
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box.onkeyup = _ => {
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const content = MarkDown.gatherBoxText(box);
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if (content !== prevcontent) {
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prevcontent = content;
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this.txt = content.split("");
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this.boxupdate(box);
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}
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};
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box.onpaste = _ => {
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if (!_.clipboardData)
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return;
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console.log(_.clipboardData.types);
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const data = _.clipboardData.getData("text");
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document.execCommand('insertHTML', false, data);
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_.preventDefault();
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if (!box.onkeyup)
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return;
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box.onkeyup(new KeyboardEvent("_"));
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};
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}
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boxupdate(box) {
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const restore = saveCaretPosition(box);
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box.innerHTML = "";
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box.append(this.makeHTML({ keep: true }));
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if (restore) {
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restore();
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}
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}
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static gatherBoxText(element) {
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if (element.tagName.toLowerCase() === "img") {
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return element.alt;
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}
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if (element.tagName.toLowerCase() === "br") {
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return "\n";
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}
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let build = "";
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for (const thing of element.childNodes) {
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if (thing instanceof Text) {
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const text = thing.textContent;
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build += text;
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continue;
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}
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const text = this.gatherBoxText(thing);
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if (text) {
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build += text;
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}
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}
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return build;
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}
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}
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//solution from https://stackoverflow.com/questions/4576694/saving-and-restoring-caret-position-for-contenteditable-div
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function saveCaretPosition(context) {
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var selection = window.getSelection();
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if (!selection)
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return;
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var range = selection.getRangeAt(0);
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range.setStart(context, 0);
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var len = range.toString().length;
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return function restore() {
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if (!selection)
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return;
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var pos = getTextNodeAtPosition(context, len);
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selection.removeAllRanges();
|
|
var range = new Range();
|
|
range.setStart(pos.node, pos.position);
|
|
selection.addRange(range);
|
|
};
|
|
}
|
|
function getTextNodeAtPosition(root, index) {
|
|
const NODE_TYPE = NodeFilter.SHOW_TEXT;
|
|
var treeWalker = document.createTreeWalker(root, NODE_TYPE, function next(elem) {
|
|
if (!elem.textContent)
|
|
return 0;
|
|
if (index > elem.textContent.length) {
|
|
index -= elem.textContent.length;
|
|
return NodeFilter.FILTER_REJECT;
|
|
}
|
|
return NodeFilter.FILTER_ACCEPT;
|
|
});
|
|
var c = treeWalker.nextNode();
|
|
return {
|
|
node: c ? c : root,
|
|
position: index
|
|
};
|
|
}
|