From 5480269d38ffaff7ffd6576d9a9407430429fb2d Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Sun, 09 Mar 2025 21:58:26 +0000
Subject: [PATCH] perf(explorer): client side explorer (#1810)

---
 quartz/components/scripts/toc.inline.ts |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/quartz/components/scripts/toc.inline.ts b/quartz/components/scripts/toc.inline.ts
index 2e1e52b..a518c10 100644
--- a/quartz/components/scripts/toc.inline.ts
+++ b/quartz/components/scripts/toc.inline.ts
@@ -1,4 +1,3 @@
-const bufferPx = 150
 const observer = new IntersectionObserver((entries) => {
   for (const entry of entries) {
     const slug = entry.target.id
@@ -16,21 +15,22 @@
 
 function toggleToc(this: HTMLElement) {
   this.classList.toggle("collapsed")
+  this.setAttribute(
+    "aria-expanded",
+    this.getAttribute("aria-expanded") === "true" ? "false" : "true",
+  )
   const content = this.nextElementSibling as HTMLElement | undefined
   if (!content) return
   content.classList.toggle("collapsed")
-  content.style.maxHeight = content.style.maxHeight === "0px" ? content.scrollHeight + "px" : "0px"
 }
 
 function setupToc() {
   const toc = document.getElementById("toc")
   if (toc) {
-    const collapsed = toc.classList.contains("collapsed")
     const content = toc.nextElementSibling as HTMLElement | undefined
     if (!content) return
-    content.style.maxHeight = collapsed ? "0px" : content.scrollHeight + "px"
-    toc.removeEventListener("click", toggleToc)
     toc.addEventListener("click", toggleToc)
+    window.addCleanup(() => toc.removeEventListener("click", toggleToc))
   }
 }
 

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