9c54fef17c
This changes the links on headings like '# Usage' in markdown from `https://host/user/repo#user-content-usage` to just `https://host/user/repo#usage` matching GitHub and GitLab. The linked id elements still have the prefix and this behaviour matches GitHub and GitLab too, so JS is needed to scroll to the active anchor. I suspect it's like that to avoid namespace collission between user-generated content and other page content. Compatibilty for old links is included so they will continue to work. Also included are some enhancements to make the clickable area for the link icon larger and fix its color on arc-green. Fixes: https://github.com/go-gitea/gitea/issues/11896 Fixes: https://github.com/go-gitea/gitea/issues/12062
32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
import {svg} from '../utils.js';
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const headingSelector = '.markdown h1, .markdown h2, .markdown h3, .markdown h4, .markdown h5, .markdown h6';
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function scrollToAnchor() {
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if (document.querySelector(':target')) return;
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if (!window.location.hash || window.location.hash.length <= 1) return;
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const id = window.location.hash.substring(1);
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const el = document.getElementById(`user-content-${id}`);
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if (el) {
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el.scrollIntoView();
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} else if (id.startsWith('user-content-')) { // compat for links with old 'user-content-' prefixed hashes
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const el = document.getElementById(id);
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if (el) el.scrollIntoView();
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}
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}
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export default function initMarkdownAnchors() {
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if (!document.querySelector('.markdown')) return;
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for (const heading of document.querySelectorAll(headingSelector)) {
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const originalId = heading.id.replace(/^user-content-/, '');
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const a = document.createElement('a');
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a.classList.add('anchor');
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a.setAttribute('href', `#${encodeURIComponent(originalId)}`);
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a.innerHTML = svg('octicon-link', 16);
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heading.prepend(a);
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}
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scrollToAnchor();
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window.addEventListener('hashchange', scrollToAnchor);
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}
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