From 9c54fef17c0393d20d39e41207ef4924e3708099 Mon Sep 17 00:00:00 2001 From: silverwind Date: Fri, 26 Jun 2020 15:04:22 +0200 Subject: [PATCH] Shorten markdown heading anchors links (#11903) 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 --- web_src/js/index.js | 12 +---- web_src/js/markdown/anchors.js | 32 ++++++++++++ web_src/less/_markdown.less | 96 ++++++++++++---------------------- 3 files changed, 67 insertions(+), 73 deletions(-) create mode 100644 web_src/js/markdown/anchors.js diff --git a/web_src/js/index.js b/web_src/js/index.js index 37cb2a398..544c2457c 100644 --- a/web_src/js/index.js +++ b/web_src/js/index.js @@ -6,13 +6,13 @@ import './publicpath.js'; import Vue from 'vue'; import 'jquery.are-you-sure'; import './vendor/semanticdropdown.js'; -import {svg} from './utils.js'; import initContextPopups from './features/contextpopup.js'; import initGitGraph from './features/gitgraph.js'; import initClipboard from './features/clipboard.js'; import initUserHeatmap from './features/userheatmap.js'; import initServiceWorker from './features/serviceworker.js'; +import initMarkdownAnchors from './markdown/anchors.js'; import attachTribute from './features/tribute.js'; import createDropzone from './features/dropzone.js'; import initTableSort from './features/tablesort.js'; @@ -2360,15 +2360,6 @@ $(document).ready(async () => { }); }); - // Set anchor. - $('.markdown').each(function () { - $(this).find('h1, h2, h3, h4, h5, h6').each(function () { - let node = $(this); - node = node.wrap('
'); - node.append(`${svg('octicon-link', 16)}`); - }); - }); - $('.issue-checkbox').on('click', () => { const numChecked = $('.issue-checkbox').children('input:checked').length; if (numChecked > 0) { @@ -2426,6 +2417,7 @@ $(document).ready(async () => { searchTeams(); searchRepositories(); + initMarkdownAnchors(); initCommentForm(); initInstall(); initRepository(); diff --git a/web_src/js/markdown/anchors.js b/web_src/js/markdown/anchors.js new file mode 100644 index 000000000..766fa34a7 --- /dev/null +++ b/web_src/js/markdown/anchors.js @@ -0,0 +1,32 @@ +import {svg} from '../utils.js'; + +const headingSelector = '.markdown h1, .markdown h2, .markdown h3, .markdown h4, .markdown h5, .markdown h6'; + +function scrollToAnchor() { + if (document.querySelector(':target')) return; + if (!window.location.hash || window.location.hash.length <= 1) return; + const id = window.location.hash.substring(1); + const el = document.getElementById(`user-content-${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 default function initMarkdownAnchors() { + if (!document.querySelector('.markdown')) return; + + 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', 16); + heading.prepend(a); + } + + scrollToAnchor(); + window.addEventListener('hashchange', scrollToAnchor); +} diff --git a/web_src/less/_markdown.less b/web_src/less/_markdown.less index 420f24cbb..e2ac664be 100644 --- a/web_src/less/_markdown.less +++ b/web_src/less/_markdown.less @@ -30,26 +30,51 @@ } .anchor { - position: absolute; - top: 0; - left: 0; - display: block; - padding-right: 6px; - padding-left: 30px; - margin-left: -30px; + padding-right: 4px; + margin-left: -20px; + line-height: 1; + color: inherit; + } + + .anchor .svg { + vertical-align: middle; } .anchor:focus { outline: none; } + h1 .anchor .svg, + h2 .anchor .svg, + h3 .anchor .svg, + h4 .anchor .svg, + h5 .anchor .svg, + h6 .anchor .svg { + visibility: hidden; + } + + h1:hover .anchor .svg, + h2:hover .anchor .svg, + h3:hover .anchor .svg, + h4:hover .anchor .svg, + h5:hover .anchor .svg, + h6:hover .anchor .svg { + visibility: visible; + } + + h2 .anchor .svg, + h3 .anchor .svg, + h4 .anchor .svg { + position: relative; + top: -2px; + } + h1, h2, h3, h4, h5, h6 { - position: relative; margin-top: 1em; margin-bottom: 16px; font-weight: bold; @@ -60,37 +85,6 @@ } } - h1 .octicon-link, - h2 .octicon-link, - h3 .octicon-link, - h4 .octicon-link, - h5 .octicon-link, - h6 .octicon-link { - display: none; - color: #000000; - vertical-align: middle; - } - - h1:hover .anchor, - h2:hover .anchor, - h3:hover .anchor, - h4:hover .anchor, - h5:hover .anchor, - h6:hover .anchor { - padding-left: 8px; - margin-left: -30px; - text-decoration: none; - } - - h1:hover .anchor .octicon-link, - h2:hover .anchor .octicon-link, - h3:hover .anchor .octicon-link, - h4:hover .anchor .octicon-link, - h5:hover .anchor .octicon-link, - h6:hover .anchor .octicon-link { - display: inline-block; - } - h1 tt, h1 code, h2 tt, @@ -113,10 +107,6 @@ border-bottom: 1px solid #eeeeee; } - h1 .anchor { - line-height: 1; - } - h2 { padding-bottom: .3em; font-size: 1.75em; @@ -124,44 +114,24 @@ border-bottom: 1px solid #eeeeee; } - h2 .anchor { - line-height: 1; - } - h3 { font-size: 1.5em; line-height: 1.43; } - h3 .anchor { - line-height: 1.2; - } - h4 { font-size: 1.25em; } - h4 .anchor { - line-height: 1.2; - } - h5 { font-size: 1em; } - h5 .anchor { - line-height: 1.1; - } - h6 { font-size: 1em; color: #777777; } - h6 .anchor { - line-height: 1.1; - } - p, blockquote, ul,