108 lines
2.9 KiB
JavaScript
108 lines
2.9 KiB
JavaScript
//@ts-check
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import { changeTitle } from "./changeTitle.mjs";
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import { getCurrentHashUrl } from "./getCurrentHashUrl.mjs";
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import { fetchMarkdown } from "./fetchMarkdown.mjs";
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import { fetchText } from "./fetchText.mjs";
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import { parseFileList } from "./parseFileList.mjs";
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import { documentMode } from "./documentMode.mjs";
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import { getElementById } from "./getElementById.mjs";
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import { onDocumentKeyUp } from "./onDocumentKey.mjs";
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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, Source, Burger] = ["Menu", "Body", "Source", "Burger"].map(
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getElementById
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);
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const loadingMode = documentMode("loading");
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const sourceEnableMode = documentMode("source-enabled");
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const menuOpenMode = documentMode("menu-open");
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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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* @param {HashChangeEvent} [_evt]
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*/
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export 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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loadingMode.on();
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const { title, raw, content } = await fetchMarkdown(path);
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changeTitle(title);
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Body.innerHTML = "";
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Source.innerHTML = raw;
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Body.appendChild(content);
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loadingMode.off();
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};
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export const loadFileList = () => {
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loadingMode.on();
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fetchText("./files.txt").then(fillMenuFromFileList);
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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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export const fillMenuFromFileList = (lines) => {
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const links = parseFileList(lines).sort(
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({ date_unix: a }, { date_unix: b }) => a - b
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);
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if (links.length < 1) {
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return;
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}
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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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// @ts-ignore
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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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/**
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* Loads the article list, parses it, creates the menu items
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*/
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export const bootstrap = () => {
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Burger.addEventListener("click", menuOpenMode.toggle);
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window.addEventListener("hashchange", onHashChange);
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loadFileList();
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onDocumentKeyUp("?", sourceEnableMode.toggle);
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};
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export default bootstrap;
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