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 | 19 +++++++++++--------
1 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/quartz/components/scripts/toc.inline.ts b/quartz/components/scripts/toc.inline.ts
index d6cd50a..a518c10 100644
--- a/quartz/components/scripts/toc.inline.ts
+++ b/quartz/components/scripts/toc.inline.ts
@@ -1,5 +1,4 @@
-const bufferPx = 150
-const observer = new IntersectionObserver(entries => {
+const observer = new IntersectionObserver((entries) => {
for (const entry of entries) {
const slug = entry.target.id
const tocEntryElement = document.querySelector(`a[data-for="${slug}"]`)
@@ -16,18 +15,22 @@
function toggleToc(this: HTMLElement) {
this.classList.toggle("collapsed")
- const content = this.nextElementSibling as HTMLElement
+ 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 content = toc.nextElementSibling as HTMLElement
- content.style.maxHeight = content.scrollHeight + "px"
- toc.removeEventListener("click", toggleToc)
+ const content = toc.nextElementSibling as HTMLElement | undefined
+ if (!content) return
toc.addEventListener("click", toggleToc)
+ window.addCleanup(() => toc.removeEventListener("click", toggleToc))
}
}
@@ -38,5 +41,5 @@
// update toc entry highlighting
observer.disconnect()
const headers = document.querySelectorAll("h1[id], h2[id], h3[id], h4[id], h5[id], h6[id]")
- headers.forEach(header => observer.observe(header))
+ headers.forEach((header) => observer.observe(header))
})
--
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