testing moving the functionality into small modules
This commit is contained in:
245
index.html
245
index.html
@ -125,15 +125,15 @@
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background: var(--accent);
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color: var(--background);
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}
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.menu-is-open .menu {
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.is-menu-open .menu {
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transform: translateX(0);
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transition-duration: 0.1s;
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}
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.menu-is-open .burger {
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.is-menu-open .burger {
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color: transparent;
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}
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.menu-is-open .burger,
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.is-menu-open .burger,
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#Loading {
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top: 0;
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right: 0;
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@ -197,243 +197,8 @@
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<p>❤</p>
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</div>
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<script type="module">
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//@ts-check
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/*****************************************************************
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*
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* "THE FRAMEWORK"
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* a small set of utilities that help
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*
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****************************************************************/
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/**
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* markdown parser. Remove if you don't use markdown
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*/
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// @ts-ignore
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import { micromark } from "https://esm.sh/micromark@3?bundle";
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const is_debug_mode = /^localhost|127.0.0.1/.test(
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window.location.hostname
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);
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/**
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* A small utility to query elements and get back an array
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*/
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const $ = (parent, selector) => [
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...(!selector
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? document.querySelectorAll(parent)
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: parent.querySelectorAll(selector)),
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];
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/**
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* Assumes a provided url is external if it begins by a known protocol
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* @param {string} url
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*/
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const isExternal = (url) =>
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url && /^(https?|mailto|tel|ftp|ipfs|dat):/.test(url);
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/**
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* Makes sure urls to local pages get passed through the routing system
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* @param {HTMLElement} container the element containing links to find
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*/
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const rewriteLocalUrls = (container) => {
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$(container, "a").forEach((a) => {
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const href = a.getAttribute("href");
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if (href && !isExternal(href)) {
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a.setAttribute("href", "#/" + href.replace(/^\.?\//, ""));
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}
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});
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return container;
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};
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/**
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* Returns the hash part of the url, but only if it starts with a `/`
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* This allows regular hashes to continue to work
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* It reads also query parameters
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*/
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const getCurrentHashUrl = () => {
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const [path, searchStr] = (
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window.location.hash[1] === "/" ? window.location.hash.slice(2) : ""
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).split("?");
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const params = new URLSearchParams(searchStr);
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return { path, params };
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};
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/**
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* useful to check for transitions while developing styles, if the loading screen disappears too fast
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* uses micromark. You can plug a different parser if you prefer
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*/
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const wait = is_debug_mode
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? (val) => new Promise((ok) => setTimeout(ok, 1000, val))
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: (val) => val;
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/**
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* @param {string} htmlString
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*/
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const generateDOM = (htmlString) =>
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/** @type {HTMLElement} */ (
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new DOMParser().parseFromString(
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`<div>${htmlString}</div>`,
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"text/html"
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).firstChild
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);
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/**
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* Loads and parses a markdown document. Makes use of micromark
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* @param {string} path the path to load
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*/
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const loadMarkdown = (path) =>
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fetch(is_debug_mode ? `./${path}?rand=${Math.random()}` : `./${path}`)
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.then((response) => response.text())
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.then(wait)
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.then((raw) => {
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const content = rewriteLocalUrls(generateDOM(micromark(raw)));
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const firstTitleElement = content.querySelector("h1");
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const title = firstTitleElement
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? firstTitleElement.textContent
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: path.replace(/\.\w{2, 4}$/, "");
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return { title, raw, content };
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});
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/**
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* parses a filelist string. That's a string that looks like
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* ```
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* name dd-mm-yyyy link name
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* name dd-mm-yyyy
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* name linkname
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* name
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* ```
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* @param {string} lines
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*/
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const parseFileList = (lines) =>
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lines
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.trim()
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.split(`\n`)
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.map((line, index) => {
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const today = new Date().toISOString().split("T")[0];
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const result = line.match(
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/(?<name>.+)\.(?<ext>\w{2,3})(?:\s+(?<date>[\d-]+)?(?<title>.+))?/
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);
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if (!result) {
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console.error(`could not parse line ${index}: [${line}]`);
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return null;
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}
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const {
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groups: { name, ext, date = today, title = name },
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} = result;
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const href = `/${name}.${ext}`;
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const date_unix = new Date(date).getTime();
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return { name, href, date, title, date_unix, index };
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})
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.filter(Boolean)
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.sort(({ date_unix: a }, { date_unix: b }) => a - b);
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/*****************************************************************
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*
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* Creating references to the important stuff
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*
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****************************************************************/
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/**
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* The elements we will need
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*/
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const [Menu, Body, Loading, Source, Burger] = [
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"Menu",
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"Body",
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"Loading",
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"Source",
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"Burger",
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].map((id) => document.getElementById(id));
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/**
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* cache the original title to append it to the page title
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*/
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const mainTitle = document.title;
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const showLoadingOverlay = () =>
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document.body.classList.add("is-loading");
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const hideLoadingOverlay = () =>
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document.body.classList.remove("is-loading");
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/*****************************************************************
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*
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* Router
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*
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* Things related to main navigation and to loading pages
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*
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****************************************************************/
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/**
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* Listens to hashchange event, and attempts to read the url.
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* If the url is set,
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*/
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const onHashChange = async (evt) => {
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const { path, params } = getCurrentHashUrl();
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if (!path) {
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return false;
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}
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showLoadingOverlay();
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const { title, raw, content } = await loadMarkdown(path);
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document.title = `${title} | ${mainTitle}`;
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Body.innerHTML = "";
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Source.innerHTML = raw;
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Body.appendChild(content);
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hideLoadingOverlay();
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};
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/**
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* Called when the file list is obtained (presumably through loading)
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* parses the file list, then fills the side navigation
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* If there's no page loaded, it also loads the first page in the list
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* (the list gets sorted by date, but the first line is the one that gets used)
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* @param {string} lines
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*/
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const fillMenuFromFileList = (lines) => {
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const links = parseFileList(lines);
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Menu.innerHTML = links
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.map(({ href, title }) => `<a data-link href="#${href}">${title}</a>`)
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.join(`\n`);
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if (!getCurrentHashUrl().path) {
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const href = links.find(({ index }) => index === 0).href;
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window.location.hash = `#${href}`;
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} else {
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onHashChange();
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}
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};
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/*****************************************************************
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*
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* Bootstrapping
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*
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* this is where things actually happen
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*
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****************************************************************/
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const loadFileList = () => {
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showLoadingOverlay();
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fetch("./files.txt")
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.then((response) => response.text())
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.then(fillMenuFromFileList);
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};
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/**
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* Loads the article list, parses it, creates the menu items
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*/
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(function bootstrap() {
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Burger.addEventListener("click", () =>
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document.body.classList.toggle("menu-is-open")
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);
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window.addEventListener("hashchange", onHashChange);
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loadFileList();
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document.addEventListener(
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"keyup",
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({ key }) =>
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key === "?" && document.body.classList.toggle("is-source-enabled")
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);
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})();
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import blog from "./modules/templateBlog.mjs";
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blog();
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</script>
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</body>
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</html>
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