From 3ff5b001ac721606b68a594958abeee8832a023e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bla=C5=BE=20Hrastnik?= <blaz@mxxn.io>
Date: Fri, 17 Sep 2021 14:42:14 +0900
Subject: [PATCH] fix: Don't allow closing the last split if there's unsaved
 changes

Fixes #674
---
 helix-term/src/commands.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index 010a6986..d2a838ba 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -1568,7 +1568,7 @@ mod cmd {
 
     /// Results an error if there are modified buffers remaining and sets editor error,
     /// otherwise returns `Ok(())`
-    fn buffers_remaining_impl(editor: &mut Editor) -> anyhow::Result<()> {
+    pub(super) fn buffers_remaining_impl(editor: &mut Editor) -> anyhow::Result<()> {
         let modified: Vec<_> = editor
             .documents()
             .filter(|doc| doc.is_modified())
@@ -4157,6 +4157,12 @@ fn vsplit(cx: &mut Context) {
 }
 
 fn wclose(cx: &mut Context) {
+    if cx.editor.tree.views().count() == 1 {
+        if let Err(err) = cmd::buffers_remaining_impl(cx.editor) {
+            cx.editor.set_error(err.to_string());
+            return;
+        }
+    }
     let view_id = view!(cx.editor).id;
     // close current split
     cx.editor.close(view_id, /* close_buffer */ false);