From 19491af5ddb8909442e078566c9b69f95885fcb8 Mon Sep 17 00:00:00 2001
From: Marijn Haverbeke <marijn@haverbeke.berlin>
Date: Fri, 12 Apr 2024 18:54:32 +0200
Subject: [PATCH] Fix cursor behavior for deleteLine

FIX: Fix an issue where `deleteLine` sometimes leaves the cursor on the wrong line.

See https://discuss.codemirror.net/t/inconsistent-behaviour-when-deleting-wrapped-lines/8119
---
 src/commands.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/commands.ts b/src/commands.ts
index 3f762ce..167e043 100644
--- a/src/commands.ts
+++ b/src/commands.ts
@@ -673,7 +673,14 @@ export const deleteLine: Command = view => {
     else if (to < state.doc.length) to++
     return {from, to}
   }))
-  let selection = updateSel(state.selection, range => view.moveVertically(range, true)).map(changes)
+  let selection = updateSel(state.selection, range => {
+    let dist: number | undefined = undefined
+    if (view.lineWrapping) {
+      let block = view.lineBlockAt(range.head), pos = view.coordsAtPos(range.head, range.assoc || 1)
+      if (pos) dist = (block.bottom + view.documentTop) - pos.bottom + view.defaultLineHeight / 2
+    }
+    return view.moveVertically(range, true, dist)
+  }).map(changes)
   view.dispatch({changes, selection, scrollIntoView: true, userEvent: "delete.line"})
   return true
 }