mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-28 18:34:10 -05:00
299c2a1408
Followup https://github.com/go-gitea/gitea/pull/29305. As per discussion in https://github.com/go-gitea/gitea/pull/29666#discussion_r1517506422, make this selector only search in the current `.markup` document, as there can be multiples displayed at the same time. @DanielMatiasCarvalho maybe you can review. (cherry picked from commit baeb2511741aa70d24a48fd46db936b52be9d9dd)
50 lines
2 KiB
JavaScript
50 lines
2 KiB
JavaScript
import {svg} from '../svg.js';
|
|
|
|
const headingSelector = '.markup h1, .markup h2, .markup h3, .markup h4, .markup h5, .markup h6';
|
|
|
|
// scroll to anchor while respecting the `user-content` prefix that exists on the target
|
|
function scrollToAnchor(hash, initial) {
|
|
// abort if the browser has already scrolled to another anchor during page load
|
|
if (initial && document.querySelector(':target')) return;
|
|
if (hash?.length <= 1) return;
|
|
const id = decodeURIComponent(hash.substring(1));
|
|
const el = document.getElementById(`user-content-${id}`);
|
|
if (el) {
|
|
el.scrollIntoView();
|
|
} else if (id.startsWith('user-content-')) { // compat for links with old 'user-content-' prefixed hashes
|
|
const el = document.getElementById(id);
|
|
if (el) el.scrollIntoView();
|
|
}
|
|
}
|
|
|
|
export function initMarkupAnchors() {
|
|
if (!document.querySelector('.markup')) return;
|
|
|
|
// create link icons for markup headings, the resulting link href will remove `user-content-`
|
|
for (const heading of document.querySelectorAll(headingSelector)) {
|
|
const originalId = heading.id.replace(/^user-content-/, '');
|
|
const a = document.createElement('a');
|
|
a.classList.add('anchor');
|
|
a.setAttribute('href', `#${encodeURIComponent(originalId)}`);
|
|
a.innerHTML = svg('octicon-link');
|
|
a.addEventListener('click', (e) => {
|
|
scrollToAnchor(e.currentTarget.getAttribute('href'), false);
|
|
});
|
|
heading.prepend(a);
|
|
}
|
|
|
|
// handle user-defined `name` anchors like `[Link](#link)` linking to `<a name="link"></a>Link`
|
|
for (const a of document.querySelectorAll('.markup a[href^="#"]')) {
|
|
const href = a.getAttribute('href');
|
|
if (!href.startsWith('#user-content-')) continue;
|
|
const originalId = href.replace(/^#user-content-/, '');
|
|
a.setAttribute('href', `#${encodeURIComponent(originalId)}`);
|
|
if (a.closest('.markup').querySelectorAll(`a[name="${originalId}"]`).length !== 1) {
|
|
a.addEventListener('click', (e) => {
|
|
scrollToAnchor(e.currentTarget.getAttribute('href'), false);
|
|
});
|
|
}
|
|
}
|
|
|
|
scrollToAnchor(window.location.hash, true);
|
|
}
|