docs(timeline): update schedule adherence Day 54 (2026-04-03)

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2026-04-03 19:03:31 +00:00
commit a4642eec30
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/**
* ADR Page — timeline placement
*
* On ADR pages the build hook embeds a hidden `.adr-timeline` element in the
* page content.
*
* Desktop (>= 76.25em) — move the timeline into the left sidebar, replacing
* the integrated Table of Contents.
* Mobile (< 76.25em) — leave the navigation drawer alone; instead show
* the timeline at the end of the article body.
*
* Compatible with Material for MkDocs instant-loading (SPA navigation).
*/
var _adrDesktopQuery = window.matchMedia("(min-width: 76.25em)");
document$.subscribe(function () {
var timeline = document.querySelector(".md-content .adr-timeline");
if (!timeline) {
// Not an ADR page — clean up any leftover state from a previous page.
document.body.classList.remove("adr-page");
return;
}
document.body.classList.add("adr-page");
if (_adrDesktopQuery.matches) {
_placeInSidebar(timeline);
} else {
_placeInContent(timeline);
}
});
/* ── Desktop: replace the sidebar TOC with the timeline ──────────────── */
function _placeInSidebar(timeline) {
var sidebarInner = document.querySelector(
".md-sidebar--primary .md-sidebar__inner"
);
if (!sidebarInner) return;
var nav = document.createElement("nav");
nav.className = "md-nav md-nav--primary adr-sidebar-timeline";
nav.setAttribute("data-md-level", "0");
var title = document.createElement("label");
title.className = "md-nav__title adr-timeline-title";
title.textContent = "Status History";
var clone = timeline.cloneNode(true);
clone.style.display = "";
nav.appendChild(title);
nav.appendChild(clone);
sidebarInner.innerHTML = "";
sidebarInner.appendChild(nav);
// Remove the hidden source element from the content area.
timeline.parentNode.removeChild(timeline);
}
/* ── Mobile: append the timeline at the end of the article ───────────── */
function _placeInContent(timeline) {
var article = document.querySelector(".md-content__inner");
if (!article) return;
// Build a wrapper with a heading so it reads as a distinct section.
var wrapper = document.createElement("div");
wrapper.className = "adr-timeline-mobile";
var heading = document.createElement("h2");
heading.textContent = "Status History";
heading.id = "status-history";
wrapper.appendChild(heading);
// Move (not clone) the timeline into the wrapper and make it visible.
timeline.style.display = "";
wrapper.appendChild(timeline);
article.appendChild(wrapper);
}
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/**
* Diagram Lightbox — fullscreen viewer for Kroki-rendered diagrams.
*
* Behaviour:
* - Clicking any Kroki diagram (<img alt="Kroki">) opens a fullscreen
* overlay showing the diagram at maximum viewport size.
* - The overlay has an X close button in the top-right corner.
* - Pressing Escape or clicking the backdrop closes the overlay.
* - Works with mkdocs-material instant-loading / SPA navigation.
*/
(function () {
"use strict";
/** The overlay element (created once, reused). */
var overlay = null;
/** The <img> inside the overlay. */
var overlayImg = null;
/** The close button. */
var closeBtn = null;
/**
* Build the lightbox DOM elements and append to <body>.
* Called once on first use.
*/
function ensureOverlay() {
if (overlay) return;
overlay = document.createElement("div");
overlay.className = "diagram-lightbox";
overlay.setAttribute("role", "dialog");
overlay.setAttribute("aria-modal", "true");
overlay.setAttribute("aria-label", "Diagram fullscreen view");
overlayImg = document.createElement("img");
overlayImg.alt = "Diagram fullscreen";
closeBtn = document.createElement("button");
closeBtn.className = "diagram-lightbox-close";
closeBtn.setAttribute("aria-label", "Close fullscreen diagram");
closeBtn.innerHTML = "&#215;"; // × character
closeBtn.type = "button";
overlay.appendChild(overlayImg);
overlay.appendChild(closeBtn);
document.body.appendChild(overlay);
// Close on button click
closeBtn.addEventListener("click", function (e) {
e.stopPropagation();
closeLightbox();
});
// Close on backdrop click (but not on the image itself)
overlay.addEventListener("click", function (e) {
if (e.target === overlay) {
closeLightbox();
}
});
// Close on Escape key
document.addEventListener("keydown", function (e) {
if (e.key === "Escape" && overlay.classList.contains("active")) {
closeLightbox();
}
});
}
/**
* Open the lightbox with the given image source.
*/
function openLightbox(src) {
ensureOverlay();
overlayImg.src = src;
overlay.classList.add("active");
// Prevent background scrolling
document.body.style.overflow = "hidden";
// Move focus to close button for accessibility
closeBtn.focus();
}
/**
* Close the lightbox.
*/
function closeLightbox() {
if (!overlay) return;
overlay.classList.remove("active");
document.body.style.overflow = "";
}
/**
* Attach click handlers to all Kroki diagram images on the page.
* Safe to call multiple times (skips already-bound images).
*/
function bindDiagrams() {
var imgs = document.querySelectorAll('img[alt="Kroki"]');
imgs.forEach(function (img) {
if (img.dataset.lightboxBound) return;
img.dataset.lightboxBound = "1";
img.addEventListener("click", function () {
openLightbox(img.src);
});
});
}
// ── Bootstrap ─────────────────────────────────────────────────────────
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", bindDiagrams);
} else {
bindDiagrams();
}
// Re-bind after instant navigation (mkdocs-material SPA mode)
if (typeof document$ !== "undefined") {
document$.subscribe(function () {
bindDiagrams();
});
}
})();
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/**
* Collapsible Table of Contents for mkdocs-material with toc.integrate.
*
* Behaviour:
* - ALL nested TOC items start collapsed on page load.
* - Clicking a parent item toggles it and marks it as "user-pinned" so it
* stays in whatever state the user chose.
* - As the reader scrolls, the ancestors of the currently-active TOC link
* are automatically expanded so the highlighted item is always visible.
* - When the reader scrolls past a section, any items that were only
* auto-expanded (not user-pinned) collapse back down.
* - Works with mkdocs-material instant-loading / SPA navigation.
*
* Page navigation is handled by the top navbar tabs + dropdowns.
* This script only manages the TOC (md-nav--secondary) in the left sidebar.
*/
(function () {
"use strict";
/**
* Set of TOC <li> elements the user has manually expanded.
* These survive auto-collapse and are only cleared on page navigation.
*/
var userPinned = new Set();
/**
* Set of TOC <li> elements that were auto-expanded by the scroll tracker.
* Cleared and recalculated each time the active link changes.
*/
var autoExpanded = new Set();
/** Reference to the sidebar element (cached after first lookup). */
var sidebar = null;
// ── Helpers ──────────────────────────────────────────────────────────
/**
* Return all ancestor <li.md-nav__item--nested> elements between `el`
* and the TOC root (the <ul data-md-component="toc"> list).
*/
function ancestorItems(el) {
var ancestors = [];
var node = el ? el.parentElement : null;
while (node && node !== sidebar) {
if (
node.tagName === "LI" &&
node.classList.contains("md-nav__item--nested")
) {
ancestors.push(node);
}
node = node.parentElement;
}
return ancestors;
}
/**
* Collapse a nested item (add the CSS class that hides children).
*/
function collapse(li) {
li.classList.add("toc-collapsed");
}
/**
* Expand a nested item (remove the CSS class so children are visible).
*/
function expand(li) {
li.classList.remove("toc-collapsed");
}
// ── Shared: make nested items collapsible ────────────────────────────
//
// Scans `containerEl` for <li> items with nested <nav> children and
// turns them into collapsible items: adds the --nested class, collapses
// them, and injects a toggle chevron.
function makeItemsCollapsible(containerEl) {
containerEl.querySelectorAll("li.md-nav__item").forEach(function (li) {
var nestedNav = li.querySelector(":scope > nav.md-nav, :scope > .md-nav");
if (!nestedNav) return;
li.classList.add("md-nav__item--nested");
// Collapse everything on load
collapse(li);
// Inject a dedicated toggle button (chevron) into the link row.
// Clicking the chevron only toggles expand/collapse.
// Clicking the link text still navigates to the heading.
var link = li.querySelector(":scope > a.md-nav__link");
if (link && !link.querySelector(".toc-toggle")) {
var toggle = document.createElement("span");
toggle.className = "toc-toggle";
toggle.setAttribute("role", "button");
toggle.setAttribute("aria-label", "Toggle section");
link.appendChild(toggle);
toggle.addEventListener("click", function (e) {
// Stop the click from propagating to the <a> and navigating
e.preventDefault();
e.stopPropagation();
var isCollapsed = li.classList.contains("toc-collapsed");
if (isCollapsed) {
expand(li);
userPinned.add(li);
} else {
collapse(li);
userPinned.delete(li);
}
});
}
});
}
// ── Initialisation ──────────────────────────────────────────────────
function initCollapsibleToc() {
sidebar = document.querySelector(".md-sidebar--primary");
if (!sidebar) return;
// Reset pinned / auto-expanded tracking on (re-)init
userPinned.clear();
autoExpanded.clear();
// Force the TOC visible. Material's base CSS hides the secondary
// nav via a sibling-combinator rule keyed off the #__toc checkbox.
// We force-check it and set inline display so the TOC is guaranteed
// visible regardless of the CSS cascade.
var tocCheckbox = sidebar.querySelector("#__toc");
if (tocCheckbox) {
tocCheckbox.checked = true;
}
// Find the actual TOC (md-nav--secondary). We scope to the secondary
// nav to avoid touching the page-level nav items that wrap sections.
var tocNav = sidebar.querySelector("nav.md-nav--secondary");
if (!tocNav) return;
tocNav.style.display = "block";
tocNav.style.opacity = "1";
tocNav.style.visibility = "visible";
// Make all nested TOC items collapsible, with pinning support for
// the active-link watcher.
makeItemsCollapsible(tocNav);
// Kick off the active-link watcher
watchActiveLink();
}
// ── Active-link watcher ─────────────────────────────────────────────
//
// mkdocs-material dynamically toggles `.md-nav__link--active` on the
// TOC link that corresponds to the heading currently in view. We use
// a MutationObserver on the TOC container to detect when that class
// changes and react by expanding / collapsing as needed.
var observer = null;
function watchActiveLink() {
// Disconnect any previous observer (e.g. after SPA navigation)
if (observer) {
observer.disconnect();
observer = null;
}
var tocRoot = sidebar
? sidebar.querySelector("[data-md-component='toc']")
: null;
if (!tocRoot) return;
// Respond to the current active link immediately
handleActiveChange(tocRoot);
// Observe subtree attribute changes — the theme adds / removes
// the --active class on <a> elements as the user scrolls.
observer = new MutationObserver(function () {
handleActiveChange(tocRoot);
});
observer.observe(tocRoot, {
subtree: true,
attributes: true,
attributeFilter: ["class"],
});
}
/**
* Called whenever the active TOC link may have changed.
*
* 1. Find the currently-active <a>.
* 2. Determine which ancestor <li>s need to be expanded.
* 3. Auto-expand those ancestors (unless already open).
* 4. Auto-collapse any previously auto-expanded items that are no longer
* ancestors of the active link (but leave user-pinned items alone).
*/
function handleActiveChange(tocRoot) {
var activeLink = tocRoot.querySelector("a.md-nav__link--active");
// Determine which nested <li>s must be open for the active link
var requiredOpen = activeLink ? ancestorItems(activeLink) : [];
// Also include the active link's own <li> if it is a nested item
if (activeLink) {
var parentLi = activeLink.closest("li.md-nav__item--nested");
if (parentLi && requiredOpen.indexOf(parentLi) === -1) {
requiredOpen.push(parentLi);
}
}
var requiredSet = new Set(requiredOpen);
// Collapse items that were auto-expanded last round but are no longer
// needed — skip anything the user has pinned open.
autoExpanded.forEach(function (li) {
if (!requiredSet.has(li) && !userPinned.has(li)) {
collapse(li);
}
});
// Build the new auto-expanded set
autoExpanded = new Set();
requiredOpen.forEach(function (li) {
if (li.classList.contains("toc-collapsed")) {
expand(li);
}
// Track as auto-expanded only if not user-pinned
if (!userPinned.has(li)) {
autoExpanded.add(li);
}
});
}
// ── Desktop detection ────────────────────────────────────────────────
//
// This entire script is designed for the desktop persistent sidebar
// (≥76.25em). On mobile, Material uses a slide-out drawer with its
// own drill-down navigation, scroll management, and back-button
// behaviour. Running our DOM restructuring on mobile breaks the
// drawer's scroll container and makes it impossible to scroll past
// the visible items.
//
// We use matchMedia to detect the breakpoint and only bootstrap on
// desktop. On resize/orientation changes that cross the breakpoint,
// the page reloads via Material's SPA system anyway, so we don't need
// a live resize listener.
var desktopQuery = window.matchMedia("(min-width: 76.25em)");
function isDesktop() {
return desktopQuery.matches;
}
// ── Bootstrap ───────────────────────────────────────────────────────
function bootstrap() {
if (!isDesktop()) return; // skip all DOM manipulation on mobile
initCollapsibleToc();
}
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", bootstrap);
} else {
bootstrap();
}
// Re-init after instant navigation (mkdocs-material SPA mode)
if (typeof document$ !== "undefined") {
document$.subscribe(function () {
bootstrap();
});
}
})();