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Provide directory navigation of the markdown file content of the github/gitee website.
// ==UserScript==
// @name Git Markdown Content Navigation
// @name:zh-CN Git Markdown 文件内容导航
// @namespace https://github.com/wang1212/user-script/blob/main/git-markdown-content-navigation
// @version 0.3.1
// @description Provide directory navigation of the markdown file content of the github/gitee website.
// @description:zh-cn 提供 github/gitee 网站 markdown 文件内容的目录导航。
// @author wang1212
// @match http*://github.com/*
// @match http*://gitee.com/*
// @grant GM_registerMenuCommand
// @grant GM_openInTab
// @grant GM_setValue
// @grant GM_getValue
// @supportURL https://github.com/wang1212/user-script/blob/main/git-markdown-content-navigation
// @license MIT
// ==/UserScript==
(function () {
'use strict';
const log = console.log;
/* ------------------------------- Register menu configuration item ----------------------------- */
let menu_item_value_switch;
let menu_item_id_switch;
let menu_item_id_feedback;
let menu_item_id_source;
function registerMenuCommand() {
//
if (menu_item_id_switch) GM_unregisterMenuCommand(menu_item_id_switch);
menu_item_value_switch = GM_getValue('menu_item_value_switch');
menu_item_id_switch = GM_registerMenuCommand(
!menu_item_value_switch ? '默认显示 [点击切换]' : '默认隐藏 [点击切换]',
function () {
GM_setValue('menu_item_value_switch', !menu_item_value_switch);
location.reload();
}
);
//
if (menu_item_id_source) GM_unregisterMenuCommand(menu_item_id_source);
menu_item_id_source = GM_registerMenuCommand('源码 [GitHub]', function () {
GM_openInTab(
'https://github.com/wang1212/user-script/tree/main/git-markdown-content-navigation',
{ active: true, insert: true, setParent: true }
);
});
//
if (menu_item_id_feedback) GM_unregisterMenuCommand(menu_item_id_feedback);
menu_item_id_feedback = GM_registerMenuCommand('反馈 & 更新', function () {
GM_openInTab(
'https://greasyfork.org/scripts/421316-git-markdown-content-navigation',
{ active: true, insert: true, setParent: true }
);
});
}
registerMenuCommand();
/* ------------------------------- Init ----------------------------- */
const href = location.href;
const matchGithub = /github/;
const matchGithubRepository = /https?:\/\/github.com\/.+\/.+/;
const matchGitee = /gitee/;
const matchGiteeRepository = /https?:\/\/gitee.com\/.+\/.+/;
const isGithub = !!href.match(matchGithub);
const isGitee = !!href.match(matchGitee);
const isRepositoryPage = !!(
href.match(matchGithubRepository) || href.match(matchGiteeRepository)
);
/* ------------------------------- Parse MarkDown file content navigation ----------------------------- */
function updateMarkdownFileContentNavigation() {
let navBarElem = document.querySelector('.wang1212_md-content-nav');
// Remove existing
navBarElem && navBarElem.remove();
if (!isRepositoryPage) return;
// titles
const titles = getMarkDownContentTitles();
if (!titles.length) return;
// navBar button
navBarElem = document.createElement('div');
navBarElem.classList.add('wang1212_md-content-nav');
navBarElem.title = 'Markdown 文件内容导航';
navBarElem.innerText = 'N';
// Panel
const navBarPanelElem = document.createElement('div');
navBarPanelElem.classList.add('wang1212_md-content-nav_panel');
navBarPanelElem.innerHTML = '';
// draw titles
titles.forEach((title) => {
const level = +title.tagName.substr(-1);
navBarPanelElem.innerHTML += `
<p class="wang1212_md-content-nav_to-anchor" style="font-size: ${
1 - ((level - 1) * 0).toFixed(2)
}rem; margin: 0; padding-left: ${((level - 1) * 0.5).toFixed(
2
)}rem" data-anchor="${title.anchorId}">
${title.text}
</p>
`;
});
// --- CSS Style ---
const styleElem = document.createElement('style');
styleElem.type = 'text/css';
styleElem.innerHTML = `
.wang1212_md-content-nav {
position: fixed;
right: 1rem;
bottom: 3.5rem;
z-index: 1999;
width: 2rem;
height: 2rem;
color: white;
font-size: 1.5rem;
line-height: 2rem;
text-align: center;
background-color: rgb(36, 41, 46);
cursor: pointer;
}
.wang1212_md-content-nav_panel {
position: absolute;
right: 0;
bottom: 2rem;
display: block;
width: 20rem;
height: 75vh;
padding: 0.5rem;
overflow: auto;
color: #999;
text-align: left;
background: white;
box-shadow: rgba(0, 0, 0, 0.25) 0 0 0.5rem 0;
}
.wang1212_md-content-nav_to-anchor {
line-height: 1.6 !important;
transition: all 0.4s linear;
}
.wang1212_md-content-nav_to-anchor:hover {
color: rgb(0, 0, 0);
transform: translateX(4px);
}
`;
navBarElem.appendChild(navBarPanelElem);
document.body.appendChild(navBarElem);
document.head.appendChild(styleElem);
// --- Event ---
// Show/Hide
navBarElem.addEventListener(
'click',
(e) => {
if (e.target !== navBarElem) return;
if (navBarPanelElem.style.display === 'none') {
navBarPanelElem.style.display = 'block';
} else {
navBarPanelElem.style.display = 'none';
}
},
false
);
if (menu_item_value_switch) {
navBarPanelElem.style.display = 'none';
}
// fly to view
navBarPanelElem.addEventListener(
'click',
(e) => {
if (!e.target.classList.contains('wang1212_md-content-nav_to-anchor'))
return;
const anchorElem = document.getElementById(e.target.dataset.anchor);
if (!anchorElem) return;
anchorElem.scrollIntoView({ behavior: 'smooth', block: 'start' });
},
false
);
}
/* ------------------------------- To Top ----------------------------- */
// to top button
function updateGoToTopButton() {
let toTopElem = document.querySelector('.wang1212_to-top');
// Remove existing
toTopElem && toTopElem.remove();
// toTop button
toTopElem = document.createElement('div');
toTopElem.classList.add('wang1212_to-top');
toTopElem.title = '回到顶部';
toTopElem.innerText = '↑';
// --- CSS Style ---
const styleElem = document.createElement('style');
styleElem.type = 'text/css';
styleElem.innerHTML = `
.wang1212_to-top {
position: fixed;
right: 1rem;
bottom: 1rem;
z-index: 1999;
width: 2rem;
height: 2rem;
color: white;
font-size: 1.5rem;
line-height: 2rem;
text-align: center;
background-color: rgb(36, 41, 46);
cursor: pointer;
}
`;
document.body.appendChild(toTopElem);
document.head.appendChild(styleElem);
// --- Event ---
// fly to view
toTopElem.addEventListener(
'click',
() => {
document.body.scrollIntoView({ behavior: 'smooth' });
},
false
);
}
/* ------------------------------- Utils ----------------------------- */
// parse titles
function getMarkDownContentTitles() {
let rootElem = document.querySelector('.markdown-body');
if (!rootElem) return [];
const anchors = rootElem.querySelectorAll('a.anchor');
if (!anchors.length) return [];
const titles = [];
anchors.forEach((elem) => {
const parentElem = elem.parentElement;
titles.push({
tagName: parentElem.tagName,
text: parentElem.textContent,
anchorId: elem.id,
});
});
return titles;
}
/* ------------------------------- Load ----------------------------- */
function load() {
updateMarkdownFileContentNavigation();
updateGoToTopButton();
}
// Monitor page reload
document.addEventListener('pjax:end', load, false);
// see docs: https://turbo.hotwired.dev/reference/events
// see https://github.com/refined-github/refined-github/issues/5719
//document.addEventListener('turbo:render', load, false)
document.documentElement.addEventListener('turbo:render', load, false);
if (isGitee) {
// Monitor page modify
const observer = new MutationObserver(load);
observer.observe(document.querySelector('.tree-holder'), {
childList: true,
subtree: false,
});
}
//
load();
})();