From 1ab9c91df1df799f7a1004200ff890b144d00f19 Mon Sep 17 00:00:00 2001
From: Aaron Pham <contact@aarnphm.xyz>
Date: Sun, 10 Nov 2024 23:13:12 +0000
Subject: [PATCH] feat(mermaid): improvement navigation (#1575)

---
 quartz/components/scripts/toc.inline.ts |    8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/quartz/components/scripts/toc.inline.ts b/quartz/components/scripts/toc.inline.ts
index 2e1e52b..2cfb3f9 100644
--- a/quartz/components/scripts/toc.inline.ts
+++ b/quartz/components/scripts/toc.inline.ts
@@ -16,10 +16,13 @@
 
 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() {
@@ -28,9 +31,8 @@
     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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