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5791a73e75
None of the frontend js/ts files was touched besides these two commands
(edit: no longer true, I touched one file in
61105d0618
because of a deprecation that was not showing before the rename).
`tsc` currently reports 778 errors, so I have disabled it in CI as
planned.
Everything appears to work fine.
68 lines
2.4 KiB
TypeScript
68 lines
2.4 KiB
TypeScript
import {svg} from '../svg.ts';
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const addPrefix = (str) => `user-content-${str}`;
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const removePrefix = (str) => str.replace(/^user-content-/, '');
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const hasPrefix = (str) => str.startsWith('user-content-');
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// scroll to anchor while respecting the `user-content` prefix that exists on the target
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function scrollToAnchor(encodedId) {
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if (!encodedId) return;
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const id = decodeURIComponent(encodedId);
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const prefixedId = addPrefix(id);
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let el = document.querySelector(`#${prefixedId}`);
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// check for matching user-generated `a[name]`
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if (!el) {
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el = document.querySelector(`a[name="${CSS.escape(prefixedId)}"]`);
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}
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// compat for links with old 'user-content-' prefixed hashes
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if (!el && hasPrefix(id)) {
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return document.querySelector(`#${id}`)?.scrollIntoView();
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}
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el?.scrollIntoView();
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}
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export function initMarkupAnchors() {
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const markupEls = document.querySelectorAll('.markup');
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if (!markupEls.length) return;
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for (const markupEl of markupEls) {
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// create link icons for markup headings, the resulting link href will remove `user-content-`
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for (const heading of markupEl.querySelectorAll('h1, h2, h3, h4, h5, h6')) {
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const a = document.createElement('a');
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a.classList.add('anchor');
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a.setAttribute('href', `#${encodeURIComponent(removePrefix(heading.id))}`);
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a.innerHTML = svg('octicon-link');
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heading.prepend(a);
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}
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// remove `user-content-` prefix from links so they don't show in url bar when clicked
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for (const a of markupEl.querySelectorAll('a[href^="#"]')) {
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const href = a.getAttribute('href');
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if (!href.startsWith('#user-content-')) continue;
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a.setAttribute('href', `#${removePrefix(href.substring(1))}`);
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}
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// add `user-content-` prefix to user-generated `a[name]` link targets
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// TODO: this prefix should be added in backend instead
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for (const a of markupEl.querySelectorAll('a[name]')) {
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const name = a.getAttribute('name');
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if (!name) continue;
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a.setAttribute('name', addPrefix(a.name));
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}
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for (const a of markupEl.querySelectorAll('a[href^="#"]')) {
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a.addEventListener('click', (e) => {
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scrollToAnchor(e.currentTarget.getAttribute('href')?.substring(1));
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});
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}
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}
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// scroll to anchor unless the browser has already scrolled somewhere during page load
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if (!document.querySelector(':target')) {
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scrollToAnchor(window.location.hash?.substring(1));
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}
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}
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