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/*!
* docsify-plugin-prevnext
* Auto-generates previous/next page navigation based on sidebar order.
*/
(function () {
function install(hook, vm) {
hook.doneEach(function () {
var nav = document.querySelector(".page-nav");
if (nav) nav.remove();
function navigate(path) {
window.location.hash = "#/" + (path || "");
}
var sidebarLinks = document.querySelectorAll(".sidebar-nav li a");
if (!sidebarLinks.length) return;
var currentPath = vm.route.path;
var links = [];
sidebarLinks.forEach(function (a) {
var href = a.getAttribute("href");
if (!href) return;
if (href.startsWith("http")) return;
if (href.indexOf("?id=") !== -1) return; // skip sub-headings
var path = href.startsWith("#") ? href.slice(1) : href;
if (path.startsWith("/")) path = path.slice(1);
if (path === "" || path === "/") path = "README";
links.push({ path: path, text: a.textContent.trim() });
});
function normalize(p) {
return p.replace(/\.md$/g, "").replace(/^\/+|\/+$/g, "");
}
// Treat root path as README
var cur = normalize(currentPath) || "README";
var idx = -1;
for (var i = 0; i < links.length; i++) {
if (normalize(links[i].path) === cur) {
idx = i;
break;
}
}
if (idx === -1) return;
var prevLink = idx > 0 ? links[idx - 1] : null;
var nextLink = idx < links.length - 1 ? links[idx + 1] : null;
// Build nav HTML
var html = "";
if (prevLink) {
html +=
'<a class="nav-prev" href="javascript:;" data-nav="' +
encodeURIComponent(prevLink.path) +
'">' +
'<span><div class="nav-label">‹ Previous</div><div class="nav-title">' +
prevLink.text +
"</div></span></a>";
}
if (nextLink) {
html +=
'<a class="nav-next" href="javascript:;" data-nav="' +
encodeURIComponent(nextLink.path) +
'">' +
'<span><div class="nav-label">Next ›</div><div class="nav-title">' +
nextLink.text +
"</div></span></a>";
}
if (!html) return;
nav = document.createElement("div");
nav.className = "page-nav";
nav.innerHTML = html;
// Attach click handlers via event delegation
nav.addEventListener("click", function (e) {
var target = e.target.closest("a");
if (!target) return;
var path = target.getAttribute("data-nav");
if (path) {
e.preventDefault();
navigate(decodeURIComponent(path));
}
});
var section = document.querySelector(".markdown-section");
if (section) section.appendChild(nav);
});
}
window.$docsify = window.$docsify || {};
window.$docsify.plugins = (window.$docsify.plugins || []).concat(install);
})();
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