日常提交

Author: yinghuochong-coder

book_template/theme/toc.js.hbs

@@ -22,22 +22,25 @@ class MDBookSidebarScrollbox extends HTMLElement {
             if (href && !href.startsWith("#") && !/^(?:[a-z+]+:)?\/\//.test(href)) {
                 link.href = path_to_root + href;
             }
+
+            var parent = link.parentElement;
+            if (parent && parent.classList.contains("chapter-item")) {
+                parent.classList.toggle("expanded");
+            }
+
             // 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.previousElementSibling.classList.toggle("expanded");
                         }
                     }
                     parent = parent.parentElement;
                 }
+                /**/
             }
         }
         // Track and set sidebar scroll position