From 9258de653dbf9403b176149497f5c64255f57fa0 Mon Sep 17 00:00:00 2001
From: Razon Yang <razonyang@gmail.com>
Date: Tue, 4 Jun 2024 14:30:37 +0800
Subject: [PATCH] feat: allow overriding `max_lines` parameter via
 `data-max-lines` attribute (#33)

For example,

````markdown
```sh {data-max-lines=20}
tree /path/to/large-folder
...
...
```
````

fix: correct the max_lines calculation
---
 assets/mods/code-block-panel/js/panel.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/assets/mods/code-block-panel/js/panel.ts b/assets/mods/code-block-panel/js/panel.ts
index 7fac659..bfb3407 100644
--- a/assets/mods/code-block-panel/js/panel.ts
+++ b/assets/mods/code-block-panel/js/panel.ts
@@ -48,8 +48,9 @@ export default class Panel {
 
     private maxLines() {
         const lines = this.lines()
-        if (params.max_lines > 0 && lines.length > params.max_lines) {
-            const offsetTop = lines[params.max_lines - 1].offsetTop
+        const maxLines = this.code.closest('.highlight')?.getAttribute('data-max-lines') ?? params.max_lines
+        if (maxLines > 0 && lines.length > maxLines) {
+            const offsetTop = lines[maxLines].offsetTop
             if (offsetTop > 0) {
                 this.pre.style.maxHeight = this.maxHeight = offsetTop + 'px'
             }