From c00089bd5728188ce554303b5b18754467c97c85 Mon Sep 17 00:00:00 2001
From: Jacky Zhao <j.zhao2k19@gmail.com>
Date: Fri, 02 Feb 2024 05:19:51 +0000
Subject: [PATCH] chore: add window.addCleanup() for cleaning up handlers
---
quartz/components/scripts/toc.inline.ts | 28 +++++++++++++++++++---------
1 files changed, 19 insertions(+), 9 deletions(-)
diff --git a/quartz/components/scripts/toc.inline.ts b/quartz/components/scripts/toc.inline.ts
index 405a21f..546859e 100644
--- a/quartz/components/scripts/toc.inline.ts
+++ b/quartz/components/scripts/toc.inline.ts
@@ -1,5 +1,5 @@
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}"]`)
@@ -14,22 +14,32 @@
}
})
-function toggleCollapsible(this: HTMLElement) {
+function toggleToc(this: HTMLElement) {
this.classList.toggle("collapsed")
- const content = this.nextElementSibling as HTMLElement
+ 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.addEventListener("click", toggleToc)
+ window.addCleanup(() => toc.removeEventListener("click", toggleToc))
+ }
+}
+
+window.addEventListener("resize", setupToc)
document.addEventListener("nav", () => {
- const toc = document.getElementById("toc")!
- const content = toc.nextElementSibling as HTMLElement
- content.style.maxHeight = content.scrollHeight + "px"
- toc.removeEventListener("click", toggleCollapsible)
- toc.addEventListener("click", toggleCollapsible)
+ setupToc()
// 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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