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andy
2026-08-01 15:00:14 +00:00
parent e43fb0d0ff
commit 331f133dfe
1278 changed files with 19041 additions and 18362 deletions
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_static/pretext/js/pretext.js
Executable → Regular
+81 -37
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@@ -60,16 +60,29 @@ function scrollTocToActive() {
}
function toggletoc() {
thesidebar = document.getElementById("ptx-sidebar");
if (thesidebar.classList.contains("hidden") || thesidebar.classList.contains("visible")) {
thesidebar.classList.toggle("hidden");
thesidebar.classList.toggle("visible");
} else if (thesidebar.offsetParent === null) { /* not currently visible */
thesidebar.classList.toggle("visible");
} else {
thesidebar.classList.toggle("hidden");
}
scrollTocToActive();
let ptxSidebar = document.getElementById("ptx-sidebar");
let sideBarIsHidden = ptxSidebar.classList.contains("hidden") || (!ptxSidebar.classList.contains("visible") && ptxSidebar.offsetParent === null);
if (sideBarIsHidden) {
ptxSidebar.classList.add("visible");
ptxSidebar.classList.remove("hidden");
} else {
ptxSidebar.classList.remove("visible");
ptxSidebar.classList.add("hidden");
}
sideBarIsHidden = !sideBarIsHidden; //toggled value for aria-expanded
let ptxTocButton = document.getElementById("ptx-toc-toggle");
ptxTocButton.setAttribute("aria-expanded", !sideBarIsHidden);
if (!sideBarIsHidden) {
scrollTocToActive();
// Focus the TOC for accessibility
document.querySelector("#ptx-toc").focus();
} else {
// Focus the TOC toggle button for accessibility
ptxTocButton.focus();
}
}
function samePageLink(a) {
@@ -93,31 +106,35 @@ function samePageLink(a) {
window.addEventListener("DOMContentLoaded",function(event) {
thetocbutton = document.getElementsByClassName("toc-toggle")[0];
thetocbutton.addEventListener("click", (e) => {
let tocButton = document.getElementById("ptx-toc-toggle");
tocButton.addEventListener("click", (e) => {
toggletoc();
e.stopPropagation(); // keep global click handler from immediately toggling it back
});
// determine if toc starts off hidden or not, use that to set aria-expanded
let ptxSidebar = document.getElementById("ptx-sidebar");
let sideBarIsHidden = ptxSidebar.classList.contains("hidden") || (!ptxSidebar.classList.contains("visible") && ptxSidebar.offsetParent === null);
tocButton.setAttribute("aria-expanded", !sideBarIsHidden);
// For themes that want it, install click handlers to auto close the toc
// when the reader clicks anywhere outside it or selects a subsection.
// (Selecting other sections or chapters navigates away from the page so
// effectively closes the TOC.)
if (getComputedStyle(document.documentElement).getPropertyValue('--auto-collapse-toc') == "yes") {
const sidebar = document.getElementById("ptx-sidebar");
const autoCollapseToc = getComputedStyle(document.documentElement).getPropertyValue('--auto-collapse-toc') == "yes";
if (autoCollapseToc) {
// Handle all clicks outside the sidebar
window.addEventListener("click", function(event) {
if (sidebar.classList.contains("visible")) {
if (!event.composedPath().includes(sidebar)) {
if (ptxSidebar.classList.contains("visible")) {
if (!event.composedPath().includes(ptxSidebar)) {
toggletoc();
}
}
});
// Handle clicks inside the sidebar but on link within a subsection.
sidebar.addEventListener("click", function (event) {
ptxSidebar.addEventListener("click", function (event) {
if (samePageLink(event.target.closest('a'))) {
toggletoc();
}
@@ -126,11 +143,28 @@ window.addEventListener("DOMContentLoaded",function(event) {
// Handle persistent sidebar if the page is restored from cache on back/forward buttons.
window.addEventListener('pageshow', (e) => {
if (e.persisted) {
sidebar.classList.remove('visible');
sidebar.classList.add('hidden');
ptxSidebar.classList.remove('visible');
ptxSidebar.classList.add('hidden');
tocButton.setAttribute("aria-expanded", "false");
}
});
}
// Handle Escape key to close the sidebar when it is presented as a mobile overlay
// or at any size if autoCollapseToc is enabled
window.addEventListener("keydown", function(event) {
if (
event.key === "Escape"
&& ptxSidebar.classList.contains("visible")
&& (
getComputedStyle(ptxSidebar).position === "fixed"
|| autoCollapseToc
)
) {
toggletoc();
}
});
});
@@ -139,17 +173,20 @@ window.addEventListener("DOMContentLoaded",function(event) {
//-----------------------------------------------------------------------------
//item is assumed to be expander in toc-item
function toggleTOCItem(expander) {
function toggleTOCItem(expander, event = null) {
let listItem = expander.closest(".toc-item");
listItem.classList.toggle("expanded");
let expanded = listItem.classList.contains("expanded");
let itemType = getTOCItemType(listItem);
let groupName = listItem.querySelector(".toc-title-box").innerText;
if(expanded) {
expander.title = "Close" + (itemType !== "" ? " " + itemType : "");
expander.title = "Close " + groupName;
expander.setAttribute("aria-expanded", "true");
} else {
expander.title = "Expand" + (itemType !== "" ? " " + itemType : "");
expander.title = "Expand " + groupName;
expander.setAttribute("aria-expanded", "false");
}
expander.setAttribute("aria-label", expander.title);
//should be one of each... for/of for safety and built in null avoidance
for (const childUL of listItem.querySelectorAll(":scope > ul.toc-item-list")) {
@@ -163,16 +200,17 @@ function toggleTOCItem(expander) {
}
}
}
}
//finds item type from classes or empty string on failure
function getTOCItemType(item) {
//Type should be class that looks like toc-X where X is not item. Find it and return X
for(let className of item.classList) {
if(className !== "toc-item" && className.length > 3 && className.slice(0,4) === "toc-")
return className.slice(4);
// if opened by keyboard, focus on the first child item, if any
if (expanded && expander === document.activeElement && event && event instanceof KeyboardEvent) {
const firstChildItem = listItem.querySelector(":scope > ul.toc-item-list > li.toc-item");
if (firstChildItem) {
const firstChildLink = firstChildItem.querySelector("a");
if (firstChildLink) {
firstChildLink.focus();
}
}
}
return "";
}
//finds depth of toc-item as defined by number .toc-item-lists it is in
@@ -208,23 +246,29 @@ window.addEventListener("DOMContentLoaded", function(event) {
if(hasChildren && depth < maxDepth) {
let expander = document.createElement("button");
expander.type = "button";
expander.classList.add('toc-expander');
expander.classList.add('toc-chevron-surround');
expander.title = 'toc-expander';
// content of span is set by CSS :before rule.
expander.innerHTML = '<span class="icon material-symbols-outlined" aria-hidden="true"></span>';
const subList = tocItem.querySelector('.toc-item-list');
expander.controlledGroup = subList.id;
expander.setAttribute('aria-controls', subList.id);
expander.setAttribute("aria-expanded", "false");
tocItem.querySelector(".toc-title-box").append(expander);
expander.addEventListener('click', () => {
toggleTOCItem(expander);
expander.addEventListener('click', (e) => {
toggleTOCItem(expander, e);
});
let isActive = tocItem.classList.contains("contains-active") || tocItem.classList.contains("active");
let preExpanded = isActive || depth < preexpandedLevels;
let itemType = getTOCItemType(tocItem);
if(preExpanded) {
toggleTOCItem(expander);
} else {
expander.title = "Expand" + (itemType !== "" ? " " + itemType : "");
let groupName = tocItem.querySelector(".toc-title-box").innerText;
expander.title = "Expand " + groupName;
expander.setAttribute("aria-label", expander.title);
}
}
}