From 6e658aae1c05fdd9f9ee36b39a948028bcaad446 Mon Sep 17 00:00:00 2001
From: Blaž Hrastnik
Date: Wed, 14 Oct 2020 18:07:42 +0900
Subject: Auto-indent on enter based on tree-sitter scopes.

---
 helix-view/src/commands.rs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'helix-view/src/commands.rs')

diff --git a/helix-view/src/commands.rs b/helix-view/src/commands.rs
index 2cc797f8..542c28ee 100644
--- a/helix-view/src/commands.rs
+++ b/helix-view/src/commands.rs
@@ -435,7 +435,16 @@ pub mod insert {
     }
 
     pub fn insert_newline(view: &mut View, _count: usize) {
-        insert_char(view, '\n');
+        let transaction = Transaction::change_by_selection(&view.state, |range| {
+            let indent_level =
+                helix_core::indent::suggested_indent_for_pos(&view.state, range.head);
+            let indent = " ".repeat(TAB_WIDTH).repeat(indent_level);
+            let mut text = String::with_capacity(1 + indent.len());
+            text.push('\n');
+            text.push_str(&indent);
+            (range.head, range.head, Some(text.into()))
+        });
+        transaction.apply(&mut view.state);
     }
 
     // TODO: handle indent-aware delete
@@ -605,3 +614,8 @@ pub fn unindent(view: &mut View, _count: usize) {
     transaction.apply(&mut view.state);
     append_changes_to_history(view);
 }
+
+pub fn indent_selection(view: &mut View, _count: usize) {
+    // loop over each line and recompute proper indentation
+    unimplemented!()
+}
-- 
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