71 lines
6.7 KiB
JavaScript
71 lines
6.7 KiB
JavaScript
// Populate the sidebar
|
|
//
|
|
// This is a script, and not included directly in the page, to control the total size of the book.
|
|
// The TOC contains an entry for each page, so if each page includes a copy of the TOC,
|
|
// the total size of the page becomes O(n**2).
|
|
class MDBookSidebarScrollbox extends HTMLElement {
|
|
constructor() {
|
|
super();
|
|
}
|
|
connectedCallback() {
|
|
this.innerHTML = '<ol class="chapter"><li class="chapter-item expanded affix "><a href="introduction.html">Introduction</a></li><li class="chapter-item expanded "><a href="getting_started.html"><strong aria-hidden="true">1.</strong> Getting Started</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="installation.html"><strong aria-hidden="true">1.1.</strong> Installation</a></li><li class="chapter-item expanded "><a href="statictranspl.html"><strong aria-hidden="true">1.2.</strong> Optional: Statictranspl</a></li></ol></li><li class="chapter-item expanded "><a href="config/config_and_syntax.html"><strong aria-hidden="true">2.</strong> Configuration & Syntax</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="config/configuration.html"><strong aria-hidden="true">2.1.</strong> Configuration</a></li><li class="chapter-item expanded "><a href="config/rendering_and_best_practices.html"><strong aria-hidden="true">2.2.</strong> Rendering and Best Practices</a></li><li class="chapter-item expanded "><a href="config/config_fundamentals.html"><strong aria-hidden="true">2.3.</strong> Fundamentals</a></li><li class="chapter-item expanded "><a href="config/variables.html"><strong aria-hidden="true">2.4.</strong> Variables</a></li><li class="chapter-item expanded "><a href="config/expression_language.html"><strong aria-hidden="true">2.5.</strong> Expression Language</a></li></ol></li><li class="chapter-item expanded "><a href="theming/theming_and_ui.html"><strong aria-hidden="true">3.</strong> Theming & UI</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="theming/working_with_gtk.html"><strong aria-hidden="true">3.1.</strong> Working With GTK</a></li><li class="chapter-item expanded "><a href="theming/styling_widgets.html"><strong aria-hidden="true">3.2.</strong> Styling Widgets</a></li></ol></li><li class="chapter-item expanded "><a href="modules/modules.html"><strong aria-hidden="true">4.</strong> Modules</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="modules/user_defined.html"><strong aria-hidden="true">4.1.</strong> User Defined Modules</a></li><li class="chapter-item expanded "><a href="modules/stdlib.html"><strong aria-hidden="true">4.2.</strong> Std Library</a></li><li class="chapter-item expanded "><a href="modules/apilib.html"><strong aria-hidden="true">4.3.</strong> API Library</a></li></ol></li><li class="chapter-item expanded "><a href="widgets/widgets.html"><strong aria-hidden="true">5.</strong> Widgets</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="widgets/widgets_and_params.html"><strong aria-hidden="true">5.1.</strong> Widgets & Parameters</a></li><li class="chapter-item expanded "><a href="widgets/props.html"><strong aria-hidden="true">5.2.</strong> Widget Properties</a></li></ol></li><li class="chapter-item expanded "><a href="examples/examples.html"><strong aria-hidden="true">6.</strong> Examples</a></li><li><ol class="section"><li class="chapter-item expanded "><a href="examples/starter_bar.html"><strong aria-hidden="true">6.1.</strong> Starter Bar</a></li><li class="chapter-item expanded "><a href="examples/interactive.html"><strong aria-hidden="true">6.2.</strong> Interactive Widgets</a></li><li class="chapter-item expanded "><a href="examples/theming.html"><strong aria-hidden="true">6.3.</strong> Theming Tricks</a></li></ol></li><li class="chapter-item expanded "><a href="troubleshooting.html"><strong aria-hidden="true">7.</strong> Troubleshooting</a></li></ol>';
|
|
// Set the current, active page, and reveal it if it's hidden
|
|
let current_page = document.location.href.toString().split("#")[0].split("?")[0];
|
|
if (current_page.endsWith("/")) {
|
|
current_page += "index.html";
|
|
}
|
|
var links = Array.prototype.slice.call(this.querySelectorAll("a"));
|
|
var l = links.length;
|
|
for (var i = 0; i < l; ++i) {
|
|
var link = links[i];
|
|
var href = link.getAttribute("href");
|
|
if (href && !href.startsWith("#") && !/^(?:[a-z+]+:)?\/\//.test(href)) {
|
|
link.href = path_to_root + href;
|
|
}
|
|
// The "index" page is supposed to alias the first chapter in the book.
|
|
if (link.href === current_page || (i === 0 && path_to_root === "" && current_page.endsWith("/index.html"))) {
|
|
link.classList.add("active");
|
|
var parent = link.parentElement;
|
|
if (parent && parent.classList.contains("chapter-item")) {
|
|
parent.classList.add("expanded");
|
|
}
|
|
while (parent) {
|
|
if (parent.tagName === "LI" && parent.previousElementSibling) {
|
|
if (parent.previousElementSibling.classList.contains("chapter-item")) {
|
|
parent.previousElementSibling.classList.add("expanded");
|
|
}
|
|
}
|
|
parent = parent.parentElement;
|
|
}
|
|
}
|
|
}
|
|
// Track and set sidebar scroll position
|
|
this.addEventListener('click', function(e) {
|
|
if (e.target.tagName === 'A') {
|
|
sessionStorage.setItem('sidebar-scroll', this.scrollTop);
|
|
}
|
|
}, { passive: true });
|
|
var sidebarScrollTop = sessionStorage.getItem('sidebar-scroll');
|
|
sessionStorage.removeItem('sidebar-scroll');
|
|
if (sidebarScrollTop) {
|
|
// preserve sidebar scroll position when navigating via links within sidebar
|
|
this.scrollTop = sidebarScrollTop;
|
|
} else {
|
|
// scroll sidebar to current active section when navigating via "next/previous chapter" buttons
|
|
var activeSection = document.querySelector('#sidebar .active');
|
|
if (activeSection) {
|
|
activeSection.scrollIntoView({ block: 'center' });
|
|
}
|
|
}
|
|
// Toggle buttons
|
|
var sidebarAnchorToggles = document.querySelectorAll('#sidebar a.toggle');
|
|
function toggleSection(ev) {
|
|
ev.currentTarget.parentElement.classList.toggle('expanded');
|
|
}
|
|
Array.from(sidebarAnchorToggles).forEach(function (el) {
|
|
el.addEventListener('click', toggleSection);
|
|
});
|
|
}
|
|
}
|
|
window.customElements.define("mdbook-sidebar-scrollbox", MDBookSidebarScrollbox);
|